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JUMP DIRECTLY TO THE 12AX7 TUBE LIST
Starting off with a quote from a client: "I just wanted to let you know how great the 12ax7 I ordered sounds. As soon as I installed it my preamp went dead silent , so silent that I thought it was off. With the other tube I was using I really thought I had some other problems , from a bad power cable to a bad grounding cable. Just goes to show how crap new tubes are. Thanks again, B. B."
Sound interesting? Read on:
The 12AX7 is a high-mu twin triode which operates in typical service as a class A amplifier, in the preamp stages of high fidelity, musical instrument, and public address amps, as well as professional line and microphone preamps, and many other audio and communications devices. The demand for the vintage USA and European versions of this tube are beginning to outstrip the supply, and, as a buyer, you need to carefully consider what is available, the device you will use it in, and what your budget allows. The highly regarded vintage brands of Telefunken, Mullard, Amperex, and RCA come at an appropriate premium price over other brands. While this higher price is justified (these tubes sound wonderful and are very long lived) other vintage brands are often just as good. Brands like GE, Sylvania, Tung-Sol, Motorola, Raytheon, and Zenith are often overlooked, but usually perform just as well as the more famous vintage brands, which makes them a terrific value, especially as the stocks of New Old Stock (NOS) tubes vanishes. Indeed, some of these were made by RCA for these other labels, and others like the Tung-Sol and Sylvania have their own followers who prefer these brands over the higher priced premium labels. There is intense hype out there about the 12AX7, and even some absolute fantasies. Some of the European labels have strong snob appeal, which can cloud accurate judgment of these very good tubes, and many self-proclaimed tube experts have either praised or shot down some vintage brands which deserve neither. If you are new to tubes in general, or are replacing a set of Russian or Chinese current production 12AX7 tubes with vintage NOS, you would do well to try several different brands and hear for yourself the sonic nuances. Then you would be well advised to lay in a stock of the brand of your choice "for a rainy day".
The main differences with this family of tubes are as follows:
12AX7: the original version of this tube. This can only be used in parallel filament circuits. This is not a big deal as virtually all audio equipment is of a parallel filament design. These often have large rectangular plates with several horizontal ribs. The older versions have blackplates, which are often preferred by audiophiles.
12AX7A: This version can be used in series or parallel filament circuits. These usually date to the 1960s and have greyplates. Vintage versions of these are about the most sought after tubes of any type today. Often RCA and GE made these for electronic organ manufacturers, and have the organ brand name on the label. These are usually specially selected tubes, and are a great buy---when available! Sometimes, 12AX7A tubes made for the US Military are labeled 12AX7WA, and I have seen WB and WC versions. The W is the military type code, A,B, and C are progressively later productions. These are nice military spec tubes. DO NOT confuse these with current production Russian or Chinese crap with the suffix WX, WB, or WC! These are not military tubes and are not NOS tubes at all!
ECC83: This is the European version of the 12AX7, and is identical to it. Most tubes with ECC83 listed on the label are European, and the ones in demand are Telefunken, Amperex, Mullard, and Siemens. More difficult to find but worth seeking are German made Valvo and the early Holland made Philips Miniwatt and Philips "SQ". Telefunken tubes have a diamond shape molded into the glass on the bottom center of the tube. The most desirable of the Telefunken ECC83 tubes is the "smoothplate" or "flatplate" versions. Like the name implies, the dull grey plates are perfectly smooth. It does not matter if some of these on the market are labeled for Fisher or Dynaco, as Telefunken made these tubes for many OEM applications. They are the EXACT same tube regardless of the label. Watch for the rare Telefunken smoothplates with a cloth label on the glass marked "selected tube". Often these have red painted tips, and watch for blue painted tips, and laboratory grade smoothplates made for Leeds & Northrup as well. These were all screened for critical use in medical equipment, with the "selected tube" or L&N versions being the best. Grass Instruments also had a yellow tip version which was even lower noise, but they are rare and difficult to find these days. All of the red, yellow, and blue tips are incredibly quiet and very three dimensional in sound. Don't miss out on the Amperex version of the Selected Tube with the rare "Electronics for Medicine" label tubes that were made for hospital equipment, and are the same exacting quality as the Telefunken medical tubes, but have the sweet Amperex sound. Amperex and Mullard tubes have a pair of alpha-numeric date codes printed in dark grey near the bottom of the tube. The rarest of these are the BugleBoy cartoon tube label for Amperex (especially if it also has the treble clef music symbol next to the Bugleboy image), and the older Mullard logo that looks like a shield, especially with the letters "BVA" below it. Watch for the Mullard "10M" series of ECC83 tubes in the distinctive royal purple and gold boxes. These sweet tubes were factory screened for a 10,000 hour heater life, matching internal triodes, and low noise, rather like the Telefunken ECC803S tubes. The 10M Master Series has gold plated pins, and the 10M Concert Series has standard pins. Demand and scarcity has driven the price of these babies to record heights lately. The 1950s versions of Mullard and Amperex (and some rare Siemens) tubes often had long narrow plates, with D or square getters, and are the scarcest and finest sounding of these two brands. The 6L13 is the rarest of the longplates, made for ultra low noise. They are nearly impossible to find today. BEWARE: the Amperex Bugleboy and Telefunken smoothplates are being faked! The fake Amperex may have the words "Bugleboy" and the cartoon tube on the box, and the label will not wash or wipe off. The fake Telefunken may have gold pins (real Telefunken ECC83 tubes had only standard pins) and a perfect, baked enamel label that won't wipe off. Our tubes are carefully screened for fakes when we obtain them, and are guaranteed genuine.
7025: This is the low noise, "industrial" version of the 12AX7. This has a spiral wound filament which reduces hum and noise. These are usually the best choice for demanding hi-fi applications, although the premium brands and blackplate types also have very low noise.
ECC803S, E83CC, E803CC, 6L13: This is a premium European version of the ECC83. The "S" indicates Special, and these tubes were screened for low noise and matching internal triode elements. These are rare in the USA. Telefunken and Siemens are the brands most often spotted, although several of the Mullard factories made these for various labels. Most of the Telefunken and Siemens tubes had gold plated pins. BEWARE: I have seen smoothplate Telefunken ECC83 tubes on auction sites with aftermarket gold plated pins, being passed off as NOS ECC803S tubes!! The ECC803S is a frame grid tube, and it's inside construction is different from a smoothplate. The ECC83 smoothplate or ribbed plate Telefunken tubes NEVER had gold pins! Be careful, and get a solid return policy like ours whenever you buy costly tubes like these. Sometimes the E83CC also carried the 12AX7WA military type label, even though it is a European made tube. The build quality and performance of these tubes are similar to the Mullard 10M type listed above, although the sonics will differ between German, Dutch, and British tubes. The 6L13 is rarely seen, and then usually only in a Mullard made longplate, but these are well worth the high price they command. They were made for other brands as well but all have the 6L13 on the label.
CV4035, F6057. M8214: These are very rare types, only made for the British military. These are the "flying lead" type with long wires where the pins normally are. The tube was intended to be soldered into a circuit board. There are modified ones out there, where the leads are dressed through a wafer base and pins attached, so the tube can be plugged into a conventional 9 pin socket. It is a lot of work, so finding one "plug and play" ready is really golden. These tubes sound fantastic, with a British warmth and nice open air at the top like the expensive long plates. Some of these, mostly the M8214 are box plates and are the rarer version. The CV4035 and F6057 are standard plates. We have a small stock of the CV4035 version with the flying leads expertly and painstakingly soldered to pins and the wafer base by noted audio engineer Bob Hovland ex of Hovland Audio and Capacitors. Well worth grabbing whenever you can find them, there is nothing being made like these today!
B759: This is an ultra-low noise version of the 12AX7, with matched triode elements. To my knowledge, only Genalex (Marconi-Osram Valve Co.) made these in England for their "Gold Lion" series. Extremely rare in the USA.
12DF7: This rather rare tube was only produced in the USA. It is an excellent replacement for any 12AX7, ECC83, or 7025 and is an improvement on these tubes. It was engineered to be very low noise and very low microphonics, designed for industrial, aircraft, hospital and professional applications and equipment where high performance from the tube is critical. Seen with Westinghouse labels or OEM industrial equipment labels or part numbers, sometimes pasted right over the Westinghouse label. Identical specs to the 12DT7 below, but harder to find since these were mostly for aircraft and spacecraft communications, and just not available outside of those industries. A great tube if you can find them, perfect for audio use!
12AD7: Another very rare tube that was primarily made for and found in recording equipment, also engineered to be very low noise. Since virtually all of these were meant for audio applications, they are all virtually guaranteed to be low noise and low microphonics. Long out of production and rarely found today. Most of what we have seen is Mullard Japan Matsushita manufactured and are of excellent quality. Sometimes found in old Roberts and Aiwa hi-fi and recording equipment. These make a great upgrade to any preamp, amp, or professional recording equipment that uses a 12AX7 or 7025. Better try them now, or miss out!
12DT7: Yet another very rare tube that was primarily made for and found in test equipment and avionics, also engineered to be very low noise. Since virtually all of these were meant for critical test, aircraft, and hospital applications, they are all virtually guaranteed to be low noise and low microphonics. Long out of production and rarely found today. Most of what we have seen is Raytheon blackplate manufactured and are of excellent quality. These make a great upgrade to any preamp, amp, or professional recording equipment that uses a 12AX7 or 7025. These have the same specifications as the 12DF7 listed above, but are usually easier to find and hench are often priced lower. Better try them now, or miss out!
12BZ7: A high mu twin triode, this tube is nearly identical in specs to the 12AX7. It has a slightly higher heater current but for most applications is plug and play compatible. The gain or mu factor is identical at 100. The only obvious difference is this tube is about one-half inch taller than the 12AX7 so overhead space must be taken into consideration. Black plates are what is mostly found with this tube, and they sound excellent in audio applications. Not currently in production and supplies are fair, but starting to become scarce. The price right now is lower than most 12AX7 tubes, but this is sure to change as audiophiles discover how well this tube subs for the 12AX7. Try one before they are gone!
7729: This is another industrial tube like the 12DF7 and 12AD7 above, manufactured for critical industrial, avaition, or medical uses. This tube is nearly always seen as CBS manufacture (sometimes OEM production by CBS with other brands on the label), and has thickly plated gold pins. Sometimes the equipment manufacturer put their part numbers or ID label right over the CBS label. Rarely found today but sometimes boxes of them turn up in the back hangars of avaition equipment suppliers and small aircraft maintainence shops. Superior in every way for audio use!
6681: This is listed in some tube manuals as a "special 12AX7", otherwise the electrical specs are the same as the standard version. Being an industrial type it most likely has a ruggedized filament, and is built to withstand many on-off cycles. I believe only RCA made these, regardless of brand on the label. UPDATE: One astute customer has informed me that GE offered 6681 tubes with the typical top seams, date codes, and "Gt. Britain" marking that indicates English Mullard manufacture. Indeed, some GE 12AX7 and 7025 tubes from the 1970s were also Mullard made, so they must have made some 6681s for GE as well. Overall, the 6681 is an excellent step up in quality from the standard 12AX7, and is a bargain at current prices.
7058: Like the 6681 above, this is a specially selected 12AX7. The JEDEC registration says it was originally made for mobile operation from 6 cell storage batteries, and has additional lot tests for for filament cycle times, Low frequency Vibration test and a 500 hour test at 15 volts on the filament and Maximum Plate dissipation. Already burned in, this tube has very stable output and makes an incredible audio or guitar amp tube. Rare, so if you find them, give them a try!
5751: This version was usually the one made for the US military. These have a lower gain than the 12AX7, but are otherwise totally compatible. Great hi-fi tubes, as the lower gain reduces noise and microphonics. These are all ruggedized and most can withstand a drop on the floor. The internal triode elements are matched as well. The early versions are more sought after as they usually have extra support rods and an extra mica spacer on top of the plate structure ("Triple Mica"), as well as blackplates, all said to contribute to low microphonics. Don't overlook the greyplate versions, they are also excellent tubes, and many of these have the triple mica as well. The GE non-military version is usually the "five star" series, intended for broadcast use. The RCA broadcast type is the "Command" series. Both the RCA and GE broadcast types are scarce, as are any of the triple mica types.
OK, SO TELL ME HOW THEY SOUND!!
A tough question if there ever was one! The best advice is to get a few types and hear for yourself the good sounds you have been missing. All of these vintage tubes are excellent, much better than the Russian or Chinese yuck that is being made today. When replacing any stock Russian, Chinese, or East Europe tube with any of these vintage NOS types, you will notice immediately that the midrange glare is gone. Gone too is that honky, boxy quality, and the tiring upper midrange screech that current production tubes are famous for. Here are some VERY GENERAL observations about some of these vintage tubes:
TELEFUNKEN, SIEMENS, VALVO, LORENZ, and other German made NOS: These tubes are usually characterized by an impressive open "air" at the top end. The soundstage is large, even in mono applications these tubes have a great 3-D image. The midrange is ruler flat, and the bass is tight and accurate. These tubes have a fine sense of dynamics, and most are impressively quiet. These are not "warm" tubes, and to some ears their lack of midrange warmth may be heard as bright. I tend to think of them as accurate, and their clean, focused sonic image is astonishing. My personal favorites. Check out Siemens longplates, Telefunken smoothplates, or Siemens E83CC for critical phono preamp or microphone preamp work. Same goes for the Telefunken "selected tube" and the tubes with blue tips that were intended for critical medical equipment. These tubes are dead quiet, ruler flat, laboratory grade beauties that will knock your socks off! The Siemens, Valvo, and Lorenz are often priced lower than the more well-known Telefunken, and can be a great bargain since their sonics are similar to the highly regarded Telefunken. Oh, and here is a little secret: the Telefunken ribbed plates sound pretty much the same as the smoothplates! In spite of the "shootouts", and "Some Guy's Tube Lore", and other claims to the contrary, the sonic differences between these two tubes (made in the same era at the same factory) are small (the rib plates are a bit warmer in the midrange) and very subjective. Don't let anyone tell you what tubes you should like and what you should not like!
AMPEREX, PHILIPS, MAZDA and other Holland/France/Belgium made NOS: These tubes are a great balance of a clean, airy top end, nice midrange warmth, and accurate bass. They are very pleasant, clean, and musical to listen to in hi-fi applications. Unlike other clean European tubes, these break-up impressively when overdriven in a guitar amp. Check out the Mazda 12AX7S silver plates for critical phono preamp or microphone preamp duties. These tubes are dead quiet, with a great sense of air and dynamics, with incredible speed and impact. The Philips Miniwatt series, usually made in the same Heerlen, Holland factory that produced the Amperex Bugleboy tubes, are a great alternative to the increasingly rare Bugleboy. They are identical internally, carry the same factory code markings, and sound the same. These Holland tubes can often be found, sometimes made for other brands or OEM labelled for amplifiers, when the Bugleboys cannot. The rare longplate versions are the same sonically, but with even more soundstage space and detail. The rare French Mazda has the air and sparkle of the Telefunken, the touch of warmth of the Amperex, and adds a nice bit of dynamic punch to the sound.
MULLARD, GENALEX, BRIMAR, and other British made NOS: Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions. The top end is silky and pleasant, without being rolled-off. The best of these tubes retain a fine sense of "air" at the top, and the upper midrange is smooth and liquid. These tubes reproduce the human voice, especially female voices, with haunting realism. The rare longplates and Genalex versions have an eye-popping huge soundstage, razor sharp focus and detail, and an uncolored top end while retaining the warmth of the lower priced versions.
RCA, RAYTHEON, GE, SYLVANIA, and other USA made NOS: This group is very diverse. The RCA, Raytheon, and Sylvania blackplates are among the best here. These are very musical tubes with air and sparkle at the top end, warmth in the mids, and great bass. The RCA are drop dead beautiful in guitar amps, even the lower priced greyplate and longplate versions. They also have a wonderful "phat" gritty sound when overdriven in these amps. The blackplates and most tubes made for organs are very quiet. The greyplate GE is an all-around nice-guy tube to listen to, the longplate here possibly getting the nod for hi-fi use. The Sylvania greyplate and military versions are clean and a bit bright, but the Sylvania 5751 variants are very balanced and pleasant to listen to for hours. The GE blackplate 5751 triple mica is also in great demand as a very musical vintage tube. The RCA 5751 is more like the Mullard, with a rich warmth and wide bandwidth. Finally, the very rare 12DF7 and 12DT7 tubes that were made mostly for avaition and spacecraft radio commmunications fall into this category. The Raytheon and Westinghouse versions of these tubes are probably as rare as the Genalex and 803S Telefunken tubes. These make superb 12AX7 upgrades, with a holographic image and a totally black background. Grab them if you can find them. Currently, the USA made tubes are a nice surprise with their low prices as compared to the European types.
CLIENT COMMENTS: "Thank you to Brent Jessee for being extremely patient and knowledgeable on my long quest to find the perfect preamp and power tubes for my Soldano. We must have tried the top tubes from every major manufacturer...Brent knew exactly how they would sound and always sent me perfect examples of these rare tubes. Could not recommend Brent Jessee more highly! Thanks. E. K."
Please e-mail me if you have any questions about these tubes.
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Tube |
Description |
Price Each |
Quantity In Stock |
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Quantity in Stock new listing categories: "In Stock" = we got 'em, come and get 'em! "Temporarily Out of Stock" = Dang it, we just ran out, but check back real soon! "Call/e-mail" = these are rare tubes and stock changes quickly. Please call us for the latest inventory, and we can often outsource these tubes for you. |
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See new stock listing key at left |
Tektronix 576 curve tracer matching services for any tube |
Curve tracer matching goes far beyond the resolution of the typical Gm tube tester! We can usually match tubes to within 500 micro amps of plate current under full rated plate voltage. If you have a sensitive application for a pair of these tubes, matching on the curve tracer is recommended. Allow an extra day or so for this careful and accurate testing to be done. Results provided on a special data label on the tube box. |
Add $10.00 per tube or $20.00 per pair |
See the video above for more details. |
Sensitive noise test fixture testing services for any tube |
Special noise testing services can be provided for your tubes. If you have a highly sensitive application such as a phono or microphone preamp, additional testing on our specially designed class A noise test fixture is recommended. This noise test operates the tube at rated voltages in an autobiasing class A amplifier circuit, and tests for noise and microphonics at maximum amplification of the tube. The results are measured both audibly and on an oscilloscope. This will weed out tubes that may not be suitable for extremely sensitive amplification applications. |
Add $5.00 per tube or $10.00 per pair. |
See the video above for more details. |
B759 Ultra-low noise premium 12AX7, Genalex RARE premium "Gold Lion" series, made in England. EXTREMELY RARE. |
New Old Stock white box. Original Genalex UK 1960s made tubes, these are NOT the current Russian made versions. These are the much sought after "Gold Lion" series made by Genalex, with the gold lion logo on the glass, and the red Genalex decal around the base. The B759 is a very low noise Genalex UK made 12AX7, with matched triode elements. One of the 2 or 3 "holy grail" 12AX7 tubes ever made at any time, you have to hear these to understand why they are so rare and costly. Fully tested by us and guaranteed. Priced per single tube, a matched pair is $1999.00. The ultimate vintage audiophile tube! |
$999.00 |
out of stock |
Watch a brief video showing the rarest 12AX7 vintage tubes! |
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Click the screen at left. |
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Tube |
TELEFUNKEN "A detailed, airy sounding tube that has jaw-dropping imaging coupled with a ruler-flat response. The tube of choice for classical, jazz, male vocals, and choral music." |
Price Each |
Quantity in Stock |
Telefunken ECC803S, diamond mark, Ultra-low noise premium 12AX7, gold pins. EXTREMELY RARE MATCHED PAIR. |
New Old Stock in original box and white box. Among the rarest tubes in the world! This is a very low noise, special quality frame grid construction 12AX7, made with the old-style Telefunken German precision. These have the ultra wide bandwidth of the Telefunken ECC83, but also have nice matched internal triodes, gold pins, and have been carefully factory screened for low noise. These tubes are currently soaring in value as stocks of them vanish. CAREFULLY MATCHED PAIR. SINGLE TUBES ARE $900.00. |
$1799.00 |
out of stock |
12AX7 Telefunken / Leeds & Northrup, Tektronix, Red Tip, or SELECTED TUBE label, very rare medical equipment grade smooth plate, most red-tipped, diamond mark MATCHED PAIR |
AT LAST, MORE just in of these incredible tubes! Hickok tested, and then ear tested in a preamp! The finest Telefunken diamond mark, NOS, that have been further aftermarket screened for low noise, low microphonics, and balance. These have the SELECTED TUBE Tektronix silver label, SELECTED TUBE cloth label, SELECTED printed on the glass, red painted tips, or run number lab label, and were only available for the Leeds & Northrup, Boonton, Tektronix test equipment market, or Grass medical equipment. Some just marked with the L&N part number. Critical use in hospital or aerospace test equipment demanded tubes with super low noise, and tightly controlled output, and these beauties deliver! The ultimate tube for tube mics and mic preamps! Very fine, very rare tubes, in great demand, especially this selected version. Excellent labels on these. These are all Tele labeled, and have the "selected tube" cloth label, or have the L&N lab run numbers on them (L&N part number 1022106 or 22-1-0-6)or the distinctive Grass Valley red painted tips. All are the real deal, with the diamond mark in the bottom glass. These are rare matched pairs, with transconductance tightly controlled internally and from tube to tube. Incredibly accurate, the amazing sound image emerges out of a dead quiet background. Compare prices.....you get a pair of these for less than ONE ECC803S!!! SINGLE TUBES ARE $275.00!! The best of the best!! |
$575.00 per pair |
in stock |
12AX7 Telefunken smooth plate, COMMENTS |
Brent- Wanted to let you know that the Telefunken 12AX7 Medical Grade I ordered last week arrived safe and sound, and oh, what a difference! The Ruby tube it replaced in my phono stage was clearly the weak link in my system. With the Telefunken, I immediately got a huge improvement in detail, attack, and overall musicality. Especially noticeable was the improvement in the sound of percussion instruments, particularly cymbals, where I couldn't previously make out the strike of the sticks or brushes on the instrument - just a blurry ongoing ring. With the new tube, the front edge of every strike is distinct, bringing the sense of pace and rhythm to new heights. The effect on plucked strings and articulation in brass instruments was equally impressive. All in all, it sounds like a totally different system. Thanks for the great pick! Best, AJ *************************************** Dear Brent, Received the three matched pairs Telefunken 12ax7s. Was chomping at the bit during 'burn in'. Was worth the wait, the equipment was connected to the Snell Eiis'. First the CD, Boito, Introduction to Metistofele performed by the Shaw choir and orchestra, blown away. Next CD, Carmina Burana, Solti and the Cleveland Orchestra, blown away a bit further down. Third, LP, Beethoven's, Emperor concerto, Curzon and the Vienna P.O. Fourth, LP, Mozart, Piano Concerto 21, Gulda, Abbado and the Wiener Philharmoniker. Fifth, LP, Madeleine Peyroux , Half a Perfect World. Top it off with the Beatles, Butcher Album. I have rediscovered the music I have available and listen for one whole day to nothing else but music. What a joy ! Thank you for your assistance, you have one happy customer. E.S. |
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12AX7 Telefunken / Leeds & Northrup, Tektronix, BLUE Tip selected tube, very rare medical equipment grade smooth plate, diamond mark |
The finest Telefunken diamond mark, NOS, that have been further aftermarket screened for low noise, low microphonics, and balance, for critical use in medical equipment. These have the blue painted tips, and were only available for the Leeds & Northrup, Boonton, Tektronix test equipment market, or Grass medical equipment. The blue tip is just one grade below the more costly red tips. Critical use in hospital or aerospace test equipment demanded tubes with super low noise, and tightly controlled output, and these beauties deliver! The ultimate tube for tube mics and mic preamps! Very fine, very rare tubes, in great demand, especially this selected version. Excellent labels on these. These are all Tele labeled, and have the distinctive Grass Valley blue painted tips. All are the real deal, with the diamond mark in the bottom glass. Incredibly accurate, the amazing sound image emerges out of a dead quiet background. The best of the best!! Priced per single tube. |
$200.00 |
out of stock |
12AX7 Telefunken smooth plate, CURVE TRACER MATCHED & NOISE TESTED, diamond mark, MATCHED PAIR |
The finest Telefunken diamond mark smoothplates, NOS, then given the full test treatment by us. Like the rare medical grade Telefunken "selected tube" labels, these are aftermarket screened, but with these tubes, by us in our shop. Normally optional at extra cost curve tracer plate current matching and sensitive noise testing is done to each tube. Then the resulting tubes that passed these critical tests are carefully matched. All are the real deal, with the diamond mark in the bottom glass. These are dead quiet at full volume, not microphonic, and sound great! Tubes passing the inspection may have other labels or blank labels, the quality is in the inside! You can't get rare quality and careful hand selection like this on eBay!! SINGLE TUBES ARE $149.00 WHEN AVAILABLE. |
$299.00 per pair |
in stock |
12AX7 Telefunken smooth plate, diamond mark, MATCHED PAIR |
The finest Telefunken diamond mark smoothplates, NOS, in whitebox. MORE PAIRS JUST IN.....These are all Telefunken labeled. Very fine tube, in great demand, especially this smoothplate version. All are the real deal, with the diamond mark in the bottom glass. These are rare matched pairs, with transconductance matched to within 2 percent. These pairs have been tested in my amplifier for noise, stereo balance and image, and microphonics, then reconfirmed the match on the tube tester. These are dead quiet at full volume, not microphonic, and sound great! You can't get rare quality and careful hand selection like this on eBay!! CLIENT COMMENTS: "Hi Brent, WOW! They don't make-um like they used to. Both the Telefunken and Mullard are absolutely beautiful in their own way. After burning in for 48hrs, and after hearing each one, including the OEM stock tube, I can say that the sound of the OEM stock is very muddy in it's entire range, and with the NOS's, it's as though a veil has been lifted, and clarity and separation of notes is revealed. It's hard to describe how beautiful these tubes reproduce sound. Thanks for everything. D.P." |
$260.00 per pair |
in Stock |
12AX7 Telefunken smooth plate, diamond mark, made for other brands or no label MATCHED PAIR |
The finest Telefunken diamond mark smoothplates, NOS, in whitebox. Very fine tube, in great demand, especially this smoothplate version. Fair to excellent labels on those with labels. Save big on these as some are made for Dynaco, some for Fisher, some not labeled. All are the real deal, with the diamond mark in the bottom glass, same tube as the Telefunken labeled tubes listed above. These are rare matched pairs, with transconductance matched to within 2 percent. These pairs have been tested in my amplifier for noise, stereo balance and image, and microphonics, then reconfirmed the match on the tube tester. These are dead quiet at full volume, not microphonic, and sound great! You can't get rare quality and careful hand selection like this on eBay!! CLIENT COMMENTS: "Good day, Received the tubes today, already a very dramatic improvement in sound stage and tonal quality. Great recommendations. David R." MORE CLIENT COMMENTS: "Just to let you know how pleased I am with the Telefunken AX7's I received a while back. I have them in a Zesto Andros phone amp. There was an immediate change of sound and it just got better. The change was not so much in the extended ranges in the sound (treble,mid, bass) although there certainly was, it was most dramatic in how music sounded...the holographic imaging/sound stage, the velvet textures(cannot think of a better way to express it), ...it is magical. I am very happy. I was pleasantly surprised that even my old albums from the 70's, classical, jazz and rock sound so much better. And new pressings of contemporary indie songwriters/musicians and jazz reissues are stunning. D. G." ANOTHER CLIENT COMMENTS: "Brent, I just wanted to thank you for the recommendation on these Telefunken 12ax7 tubes, they are extraordinary and have completely transformed my system..That was a good call and an unbelievable value at $190. I would also add that they took an optimized system from sounds great to everything I've fantasized about hearing using tubes, the soundstage, clarity, details, etc are just astonishing. C.B." |
$199.00 per pair |
in Stock |
12AX7 Telefunken made ribbed plate, diamond mark, OEM labels MATCHED PAIRS |
NOS in white box. Very fine tube, in great demand. Nice Telefunken, Dynaco, and Fisher labels on these. All are original Telefunken diamond bottom marked tubes, most OEM labeled for various brands of amps as they were replacement stock. These beauties are hand matched to within 2 percent transconductance. These fine pairs have been tested on an oscilloscope and in my amplifier for noise, stereo balance and image, and microphonics, the the match reconfirmed on the tube tester. Dead quiet at full volume and no microphonics. A sound very much like the smoothplates, phono-stage or microphone-preamp quiet, with perhaps a bit more warmth in the lower midrange, at a big savings! CLIENT COMMENTS: "Excuse my language, but holy crap! The Telefunkens transformed the sound of my amplifier. Wow, what a change from the Sovteks. The Telefunkens have a lighter sound. I noticed that voices seemed to lose some chestiness, but gained a delicacy that makes them float in front of me and seem more realistic. The soundstage is wider and the presentation holographic with ambiance that wasn't there before. Wow, best investment I have made in a long time! Yours truly, Happy Camper. :) T.F." |
$199.00 per pair |
out of Stock |
12AX7 Telefunken ribbed plate, diamond mark |
NOS in white box. Very fine tube, in great demand. Fair to very nice OEM labels on these. A sound very much like the smoothplate, phono-stage or microphone-preamp quiet, with perhaps a bit more warmth in the lower midrange, at a big savings. A few are OEM labeled, but are genuine diamond bottom Telefunken tubes. |
$99.00 |
In Stock |
12AX7 Telefunken smooth plate, diamond mark |
NOS, in whitebox. Very fine tube, in great demand, especially this smoothplate version. Good to fair labels on these, genuine German Telefunken with diamond mark. Priced per single tube. |
$130.00 |
In Stock |
12AX7 Telefunken smooth plate, OEM or blank label, diamond mark |
NOS, in whitebox. Save on these same smoothplates but have other brands on the labels, or blank labels. Very fine tube, in great demand, especially this smoothplate version. Good to fair labels on these, genuine German Telefunken with diamond mark, most labelled for Dynaco, Mazda, or Fisher. Priced per single tube. CLIENT COMMENTS: "Dear Brent, I just wanted to thank you for your helpful advice and for the Telefunken and Mullard OEM tubes. They have made a very significant difference even though they are not yet broken in: greater tonal accuracy, detail, clarity and spaciousness. Piano in particular now sounds rich and resonant, and I can hear sustained notes clearly under the melody. I confess I was a bit skeptical about NOS tubes and whether or not I would hear a difference but I'm a believer now. Thanks again, H.K." |
$99.00 |
in stock |
Tube |
MAZDA "A Swiss Army knife of a tube, it has a top end to die for, yet has warmth and sweetness in the lower midrange. Plenty of punch in the upper mids and tight bass make this tube sound at home in guitar amps and the finest hi-fi systems alike." |
Price Each |
Quantity in Stock |
Mazda France SILVERPLATE TRIPLE MICA 12AX7S low noise early 1960s. VERY RARE. MATCHED PAIR |
New Old Stock in original and white boxes. A few more just in! CLIENT COMMENTS: "The 12AX7 select Mazda tubes came in the mail today in fine shape. I put them in my preamp section of the MA2275 and I can hear a considerable difference over the regular smooth plate Telefunken. These select Mazda tubes have more detail and are very, very clear. I'm extremely satisfied with these tubes and all the tubes you provided. All the Best, M.M." This is a very low noise, seldom seen triple mica silver plate 12AX7. Most are the very rare high demand Orega-CIFTE or Mazda label from the early 1960s. This tube has an incredibly clear tone that works well in both hi-fi and guitar amp applications. These have the sonics and punch of the silver plates and the low noise of an S type tube, not to mention the low microphonics of a triple mica! Add to this the quiet background, and incredible 3-D soundstage these tubes create, make these about the best silverplates ever made! 1960s French Mazda date codes, some have military markings including the crossed flags of the French Signal Corps. Carefully matched, a very rare chance to grab a matched pair of these superb vintage tubes. SINGLE TUBES ARE $340.00 EACH. |
$675.00 per pair |
out of stock |
Mazda France, CIFTE or Belvu label (all Mazda made) SILVERPLATE 2 mica 12AX7. Most military stock, VERY RARE.MATCHED PAIR |
New Old Stock in original boxes. This is a very low noise, seldom seen silver plate 12AX7. These are the very rare French Nickel plates tube, most with with military markings, and most in original boxes. This tube has an incredibly clear tone that works well in both hi-fi and guitar amp applications. These have the sonics and punch of the 3 mica silver plates at a savings! Add to this the quiet background, and incredible 3-D soundstage these tubes create, make these about the best 12AX7 ever made! 1960s French Mazda date codes, some have military markings including the crossed flags of the French Signal Corps. Carefully matched, a very rare chance to grab a matched pair of these superb vintage tubes. SINGLE TUBES ARE $280.00 EACH. CLIENT COMMENTS: "Hello Brent, Thought I'd give some feedback on the Mazda Military Stock 12AX7 Silver Plates I just purchased....first, I'm fortunate to own a system that is very "tube rolling" friendly and each tube roll always provides different and entertaining results. I've always enjoyed the early 50's RCA Black plates, Telefunken smooth and ribbed plates, the top 5751's and more recently, for about the past year loved the Amperex "Medical Grade" 12AX7's. I have to say these Mazda's surpass them all....the open end and air of the typical European tubes but just something magical in the tone, punch and 3D presentation that puts them at the top of my list....WOW! They are something special. Many Thanks! P.R." |
$575.00 per pair |
in Stock |
R/T France 1960s vintage 12AX7S, E83CC, military or ORTF (broadcast type), Ultra-low noise premium 12AX7, greyplate, standard pins. VERY RARE. MATCHED PAIR |
New Old Stock in original and white boxes. This is a very low noise, seldom seen special quality 12AX7. This tube has an incredibly clear tone that works well in both hi-fi and guitar amp applications. Like the nickel plate 12AX7S above, only these are greyplate at a nice savings. Early 1960s French R/T (Mazda) manufacture with the R/T tube logo in green on the glass, some made for Dario/Miniwatt, some marked with ORTF, the French radio-television association, indicating broadcast quality tested, and a few are blank military stock. The sonics are quite similar to the even-rarer Mazda silver anode, and the "S" suffix insures factory testing for low noise like the famous Telefunken ECC803S. Carefully matched, a very rare chance to grab a matched pair of these superb vintage tubes. SINGLES ARE $225 EACH. |
$450.00 per pair |
in Stock |
Mazda France 1950s vintage LONGPLATE "ladder plate" 12AX7, greyplate, some military stock. VERY RARE. MATCHED PAIR |
New Old Stock in original military and white boxes. This is a very low noise, seldom seen 12AX7,from France with the rare 1950s long plates. This tube has an incredibly clear tone that works well in both hi-fi and guitar amp applications. These greyplates longplates have the sonics and punch of the silver plates at a savings! Many who have heard these for the first time say they beat the Telefunken ECC803S in sound quality! 1950s French Mazda date codes, these tubes were made for various brands intented for sale in France, some are military stock. Carefully matched, a very rare chance to grab a matched pair of these superb vintage tubes. SINGLE TUBES WHEN AVAILABLE ARE $150.00. |
$300.00 per pair |
in Stock |
Mazda France 1960s vintage 12AX7, greyplate, some military stock. VERY RARE. MATCHED PAIR |
New Old Stock in original military and white boxes. This is a very low noise, seldom seen 12AX7. This tube has an incredibly clear tone that works well in both hi-fi and guitar amp applications. These greyplates have the sonics and punch of the silver plates at a savings! Many who have heard these for the first time say they beat the Telefunken ECC803S in sound quality! 1960s French Mazda date codes, these tubes were made for various brands intented for sale in France, some are military stock. Carefully matched, a very rare chance to grab a matched pair of these superb vintage tubes. SINGLE TUBES WHEN AVAILABLE ARE $145.00. |
$275.00 per pair |
in Stock |
Mazda 5751 SILVER ANODE France, TRIPLE MICA, RARE, Premium industrial grade 12AX7 |
New Old Stock in original and white box. VERY scarce silver anode French Mazda 5751 tubes with triple mica, like the equally rare 12AX7S Mazda tubes, but with the lower gain of a 5751. Punchy, quiet, and very detailed with incredible dynamic range. These are not often available, and I don't forsee finding more in the near future. Get yours today! SINGLE TUBES ARE $275.00 EACH. |
$550.00 per pair |
out of stock |
Mazda 5751 greyplate France, TRIPLE MICA, RARE, Premium industrial grade 12AX7 |
New Old Stock in original box. VERY scarce French Mazda 5751 tubes with triple mica, like the equally rare 12AX7S Mazda tubes, but with the lower gain of a 5751. Punchy, quiet, and very detailed with incredible dynamic range. These are not often available, and I don't forsee finding more in the near future. Get yours today! SINGLE TUBES ARE $110.00 EACH. |
$225.00 per pair |
out of stock |
Tube |
MULLARD "When it comes to warmth, no other tube can top this jewel from the British crown. Silky highs, a liquid midrange, and awesome deep bass give this tube its deserved reputation for warmth and full sonics." |
Price Each |
Quantity in Stock |
CLIENT COMMENTS ON MULLARD 12AX7 NOS STOCK |
Hello Brent, I received the tubes last Friday. Tried them yesterday and my god were you right! Made an A/B comparison with my new production JJs and the difference was simply unreal. Never heard such detail come from that amp... incredible string definition even at high amounts of gain... complex and beautiful overtones.... increased response... I still can't believe it. Then I put the JJs back in to make a last check. It sounded like a broken radio. Fizzy noise, all articulation lost, ear piercing trebles. And I thought I had a perfectly good tone. What have I been doing with that amp all my life? I am particularly impressed at how you were able to nail the guitar tone I was searching for. They bring exactly what I wanted: more power, more musical distortion, but also more definition! I want to thank you for that. It was my first NOS experience and I was kinda skeptic. Now I've really understood how they make a difference (you'd have to be deaf not to notice!). Time for me to stock up with more of those in the near future, so you'll be hearing more from me! Thanks again. S. A. |
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-- |
Mullard 10M Series Ultra-low noise premium 12AX7, GOLD pins instrument grade, made in England. EXTREMELY RARE. |
New Old Stock in white box. The 10M series by Mullard is a British tube classic, and these are very scarce in the USA! 10,000 hour rated heater life, matched triodes, low noise and low microphonics screened. This tube was made for B&L labs and has the red painted tip showing it passed for use in test and measurement equipment. These have the ultra wide bandwidth of the Telefunken, but with just a touch of midrange warmth. The gold pin 10M version is the most sought after, consistently rated one of the best 12AX7 tubes of all time on many audiophile message boards and websites. These tubes are currently soaring in value as stocks of them vanish. Finding a red tip instrument grade is a chance of a lifetime! |
$699.00 |
out of stock |
Mullard 10M Series 12AX7/7025, Ultra-low noise premium 12AX7, standard pins, made in England. EXTREMELY RARE. |
New Old Stock in white box. The 10M series by Mullard is a British tube classic, and these are very scarce in the USA! 10,000 hour rated heater life, matched triodes, low noise and low microphonics screened. These have the ultra wide bandwidth of the Telefunken, but with just a nice sense of midrange warmth. Excellent original yellow label. These tubes are currently soaring in value as stocks of them vanish. MATCHED PAIRS ARE $900.00! |
$450.00 |
out of stock |
12AX7 Mullard LONGPLATE, medical grade "red tip" SQUARE getter, 1950s date codes MATCHED PAIR |
New Old Stock in whiteboxes. The first I have ever seen of these medical grade long plates, made for 1950s EEG (brain wave)machines! RARE early SQUARE getter LONGPLATE Mullard, with the famous, elusive longplates, and then screened for super critical hospital use. The first generation of Mullard 12AX7 tubes, 1950s vintage Blackburn factory date coded. The best is the sound of these jewels, which is unsurpassed. These are carefully matched, and tested for low noise and microphonics. As good or better than the famed Mullard 10M goldpin series, at a lower price! Single tubes are $450.00. |
$900.00 per pair |
out of Stock |
12AX7A / CV4035 RARE Brimar box plate military type, "flying lead" with mounted base |
New Old Stock in original military boxes. All very rare military flying lead type with the leads trimmed and soldered to a large Bakelite vibration absorbing wafer base around the point where the pins meet the glass, to allow the tube to be plugged into a conventional 9 pin socket. Absolutely will fit in any 12AX7 equipment socket. These superb military tubes were expertly soldered into pins and the wafer base by the noted audio expert Bob Hovland, ex of Hovland Audio and Capacitors. Late 1960s to early 1970s Brimar UK made for the British military, these are among some of the most difficult to find tubes, especially modified to be plug and play! Box plates like the CV4004, but these are way better! Identical to the industrial type 6057 and a superb low noise 12AX7. It will fit any socket that requires a 12AX7, ECC83, 7025 or 5751. These are Brimar with the factory code, original military boxes, in a very tightly matched pair. These rival the long plates, square gettters, and the 10M tubes that cost far more. These have that sweet British sound, and you are getting a vibration damped 12AX7 as well! No one else has these, very limited stock, you snooze you lose! SINGLE TUBES ARE $185.00 EACH. |
$370.00 per pair |
out of stock |
12AX7 Mullard LONGPLATE, Square getter, 1950s date codes, most mC1 production codes MATCHED PAIR |
New Old Stock in whiteboxes. RARE early square getter Mullard, with the famous, elusive longplates. Nearly all in this batch are the super rare mC1 production codes from the early to mid 1950s. Even more awesome is finding a matched pair of these gems. The first generation of Mullard 12AX7 tubes, 1950s vintage mC1 Blackburn factory date coded, various labels, some made for brands of amps. The internal construction is identical to the rare 6L13 above, they were from the same production! The best is the sound of these jewels, which is unsurpassed. These are carefully matched, and tested for low noise and microphonics. As good or better than the famed Mullard 10M goldpin series, at a lower price! Good stock just in right now, however these are VERY RARE, another decade and these may be gone forever! CLIENT COMMENTS: "Hi Brent , Yesterday the tubes arrived in my hands … a very superb sound is coming’ out from my speakers and from the first record the difference is considerable , incredibly better then before and hour after hour it gets better and better ! I’m very very happy … money well spent !! Thank you so much ! F.C." |
$599.00 per pair |
out of Stock |
12AX7 Mullard LONGPLATE, Square getter, 1950s date codes VERY RARE mC1 production codes. |
Tested as New Old Stock in whiteboxes. A rare early square getter Mullard, with the famous, elusive longplates and the earliest mC1 production codes. These have an even Gm match between the internal triode elements, and are tested for low noise and microphonics. Several are made for Amperex with the Bugleboy logo. If you only need a single 12AX7, this is a rare chance to get one of the best ever made! Priced per single tube. |
$299.00 |
out of Stock |
12AX7 Mullard LONGPLATE, halo getter, Blackburn, UK 1958 or 1959 date codes MATCHED PAIRS |
New Old Stock in original box and whiteboxes. The elusive, never-been-reproduced long narrow plate Mullard 12AX7 with the "goal post" halo getter supports! These all have a near even Gm match between triode elements, two percent or better match between tubes, and excellent white "Eico by Mullard", "Heath by Mullard", or Mullard shield logo labels. These have become incredibly hard to find (especially in pairs) in just the last year! Good stock now, but better not wait! CLIENT COMMENTS: "Hi Brent - A note of thank you. I sampled through all the 12ax7 and 5751 tubes I have while waiting for the Mullards to arrive. The Mazda's and the RCA 5751 Commands are really nice, but the Mullards you recommended, in my system and my room, are without exception the best I've heard. There is something "just right" about the sound. Sure, its more 3 dimensional and balanced across the frequencies but more than any thing, it makes one just want to stop whatever else you are doing and enjoy. I Just might be laying a supply of these while they are available. Many thanks, A.G." |
$450.00 per pair |
in Stock |
12AX7 Mullard LONGPLATE halo getter, Blackburn UK 1958, 1959 date codes |
New Old Stock in original box and whiteboxes. The elusive, never-been-reproduced longplate Mullard 12AX7! These all have an even Gm match between triode elements, halo getter, and excellent white labels. Priced per single tube. CLIENT COMMENTS: "Hi Brent, These Mullard tubes have done 30+ hours and are settling beautifully. All harshness and aggression is gone. Inner detail is fantastic, very transparent, multi layered, solid 3D soundstage. Very involving, musical, realistic, even beguiling. Very impressive tubes! Many thanks. P.J." |
$225.00 |
in Stock |
12AX7 Mullard selected "Electronics for Medicine", or red tip select, halo getter, Blackburn, UK RARE MATCHED PAIRS |
New Old Stock in whiteboxes. The elusive, specially selected "Electronics for Medicine" 12AX7! These have the caduceus, the entwined snake logos of the medical profession on the label, and are not often seen made by Mullard. Others in stock are Grass Valley Medical replacement stock for hospital equipment and marked with the red tip. Made for medical and hospital equipment, these rare tubes will cure your sonic ills and make your system sound better than ever! These all have a near even Gm match between triode elements, two percent or better match between tubes, and excellent white "Electronics for Medicine" logo labels, or Mullard labels with the Grass Valley red tips. Super low noise. I also have a few that were labeled for Fisher Radio with blue tips selected for sensitive audio circuits. These have become incredibly hard to find (especially in pairs) in just the last year. SINGLE TUBES ARE $199 EACH. Finally, one matched pair of Gold Aero Mullard made phono grade. CLIENT COMMENTS: " Just received the tubes safely from USPS. Your advice is always spot on. The Mullard electronics for medicine are exactly what you said they would be! I am very impressed with every thing I order from you. Every thing has been in meticulous condition and of some of the best quality. Regards, K.S." |
$399.00 per pair |
in Stock |
12AX7A / CV4004 / M8137 / CV492 (E83CC) RARE Mullard boxplate military type |
New Old Stock in industrial boxes, made in Great Britain. This tube is the famed CV4004 military version, and has the grey rectangular box plates. These are Mullard with the Mullard factory code. These have that sweet British sound, unquestionable Mullard quality, and rapidly becoming extinct!! Priced per single tube, and one single CV4004 boxplate Mullard relabeled with Brimar 12AX7 is available. The CV92 has standard plates. MATCHED PAIRS, WHEN AVAILABLE, ARE $299.00. |
$150.00 |
out of stock |
Mullard made 12AX7, SELECTED Premium industrial grade |
New Old Stock in white boxes, OEM label made in Great Britain. These sweet tubes are selected for use in audio equipment by aftermarket manufacturers who sold them as replacement parts for their amplifiers. Most were made and labeled for Fisher, Hammond and 3M/Wollensak, and these all are Blackburn, U.K. factory date coded genuine Mullard tubes from the 1960s. Getting VERY scarce! Low noise, better than the standard 12AX7 Mullard, try one! MATCHED PAIRS ARE $250.00. |
$120.00 |
in stock |
12AX7 Mullard rare yellow shield logo, halo getter, standard plates MATCHED PAIRS |
New Old Stock in original box and whiteboxes. Rarely seen in the USA, the yellow shield logo tubes are from the early 1970s, only made for 2 years, and rival the longplates in quality. We have a few hand selected pairs with excellent labels. SINGLE TUBES ARE $145.00 EACH. |
$299.00 per pair |
out of stock |
12AX7 Mullard white shield logo/ white label/ IEC Mullard white label / or Brimar white label type, standard plates |
New Old Stock in original and whiteboxes, all with the Blackburn, UK factory code. 1960s date coded Mullard quality that has yet to be equalled. Magnificent old Mullard vintage tubes with the Mullard name on the labels, all 1960s stock, and some say these sound better than the older versions. Try some and you be the judge. These tubes are in incredible demand today. These are standard plates, not the longplates, but were made right after the longplates. A few in stock made by Brimar as well. MATCHED PAIR $240.00 PER PAIR. |
$120.00 |
in Stock |
12AX7 Mullard Made, OEM labels |
New Old Stock in whiteboxes. Late 1960s vintage, made in Great Britain, some unlabeled; some for Bogen, Knight, Fisher, Gold Aero, IEC Mullard, Amperex, Haltron, Tronal, GE and RCA. Same tubes as the Mullard labels listed above. All are genuine Blackburn, UK Mullard factory made, just have different labels. These have that sweet Mullard sound at a lower price! Fully tested as NOS, and fully satisfaction guaranteed. Priced per single tube. CLIENT COMMENTS: Hi Brent, Just got the valve and all I can say is what a difference in sound, WOW!!!! Top end lifted and low end became more tight, solid and very defined, not boomy at all. Thank you so much. Regards, C. R." MORE CLIENT COMMENTS: "Brent: Your recent shipment arrived early and was packed perfectly. I don’t usually write emails like this and am so impressed with your recommendation that I felt compelled to do so. So last week I called you and asked for the least clinical most tube sounding configuration you could come up with. Success, yesterday I installed the Mullard 12AX7 and EL84’s and after 30 minutes of burn in the tubes settled down. My first impression of this setup is easy to state, the cymbals have a wonderful detailed sustain now and overall there is now a deep 3D sound stage. My wife came in and noticed the change immediately and commented that it sounded very lifelike and she thought the bass guitar tone was improved as well. This tiny cheap amp should not sound like this. Awesome recommendation Brent!!! You have a very satisfied customer here!!! T.C." EVEN MORE CLIENT COMMENTS: "Dear Brent,I j ust wanted to thank you for your helpful advice and for the Telefunken and Mullard OEM tubes. They have made a very significant difference even though they are not yet broken in: greater tonal accuracy, detail, clarity and spaciousness. Piano in particular now sounds rich and resonant, and I can hear sustained notes clearly under the melody. I confess I was a bit skeptical about NOS tubes and whether or not I would hear a difference but I'm a believer now. Thanks again, H.K." |
$99.00 |
In Stock |
12AX7 MullardMATCHED PAIR |
New Old Stock in whiteboxes. Late 1960s vintage, Genuine Mullard "B" factory code (Blackburn) made in Great Britain, labeled for IEC Mullard, Amperex, Philips, GE, Fisher and other brands of amplifiers or organs. Same OEM label Mullard tubes as above, only these have been carefully matched into pairs. These have that sweet Mullard sound at a lower price! Very closely matched and selected pair of beauties! CLIENT COMMENTS: "Hi Brent, I just wanted to thank you for the three Mullard 12AX7 that you sent… After trying to purchase online through eBay and other sources, you are the only one who has given me exactly what I wanted and asked for! Your testing and tube ratings are bang on and I will buy more NOS tubes from you in the future because I can trust you… thank you so much. K.W." |
$199.00 per pair |
In Stock |
SPECIAL: "BUTT UGLY" 12AX7 Mullard Blackburn UK made tubes! |
New Old Stock? Almost New Old Stock? in whiteboxes. Holy gluteus maximus, Batman, here we go again with more of these Butt Ugly tubes!! Save BIG on these genuine Mullard UK made tubes that are, well....BUTT UGLY! Most are missing labels, some are slightly different construction/types/production years, some have crooked glass or tilted insides, just UGLY. This is an accumulation of less-than-pretty Mullard tubes that I did not know what to do with. These all have the Mullard Blackburn UK "B" factory codes on the glass. A rare chance to try a real Mullard 12AX7 at an unheard of low price, we keep selling out of these! All are Mullard made (I seem to be repeating myself, but I get asked constantly "are these real Mullard tubes?"), and will sound the same as the pretty Mullard tubes, and they are half the price. Don't sit on your butt, get some ugly tubes before they are gone!!Matched pairs just $170.00! |
$79.00 |
in stock |
Mullard made 7025/12AX7/6681, SELECTED Premium industrial grade |
New Old Stock in white boxes, some OEM label, made in Great Britain. Low noise version of the 12AX7. These sweet tubes are selected for use in audio equipment by aftermarket manufacturers who sold them as replacement parts for their amplifiers. The 7025 is not commonly found in a Mullard, and these all are Blackburn, U.K. factory date coded genuine Mullard tubes from the 1960s. Getting VERY scarce! Low noise, better than the standard 12AX7 Mullard, try one! |
$149.00 |
in Stock |
12AX7 Brimar |
New Old Stock in white boxes. 1960s vintage, made in Great Britain. This tube is like the famed CV4004 military version, and has the grey standard size plates. These are Brimar with the Brimar factory code, in a very tightly matched pair. These have that sweet British sound, and you are getting a real British Brimar at a savings! A few are Brimar made for CEI. RARE SINGLES ARE $95.00 EACH. |
$190.00 per pair |
out of Stock |
12AX7A / CV4004 Brimar boxplate military type |
New Old Stock in original military boxes. Mid to late 60s vintage, made in Great Britain. This tube is the famed CV4004 military version, and has the grey rectangular box plates. These are Brimar made with the white CV4004 label or 12AX7 label, in a very tightly matched pair, or singles are also available. These have that sweet British sound, and you are getting a real British military boxplate at a savings! This is not the late 1970s to early 1980s version other dealers have, but the very rare 1960s vintage. RARE SINGLES ARE $175.00 EACH. |
$350.00 per pair |
out of stock |
12AX7 Brimar black plate, OR British Brimar LONGPLATE, old logo, 1950s Footscray, UK factory. |
New Old Stock in white box. Early vintage with longplates, large halo top getter, and the early Brimar label on the glass. These are a rare military version and are rapidly disappearing from circulation. MATCHED PAIRS ARE $299.00 PER PAIR! |
$149.00 |
OUT OF Stock |
Tube |
AMPEREX / PHILIPS "Sweet without being syrupy, these Dutch treats are perfectly at home right between the top end detail of the German tubes and the rich bass of the Mullard and RCA tubes. They have a bit of both, and pull it off with a sophisticated top end air and image. No wimps, these tubes, for they can rock with the best of them in a guitar amp, too." |
Price Each |
Quantity in Stock |
12AX7 Amperex MEDICAL GRADE, "Electronics for Medicine" original Holland made. |
New Old Stock White Box. 12AX7 1960s large halo getter Holland made tubes (same factory as the Bugleboy) produced and screened for critical use in medical equipment. These are labelled "Electronics for Medicine" and have the snakes logo of the medical profession. These were stock for brain wave recorders, so they had to be low noise for the machine to be accurate. In audio use they are very quiet, dynamic, and very engaging to listen to. Similar quality to the rare Telefunken "Selected Tube" medical tubes, only these have the sweet Amperex sound and a lower price! Medical grade tubes are very rare, especially those made by Amperex. MATCHED PAIRS ARE $425.00. We are probably the only dealer in the world that has a significant number of these available. Good stock now, but if you wait...... CLIENT COMMENTS: "Just got my tube and did a quick a/b test. The difference is MASSIVE. Sounds like a completely different mic. Its now deep and chesty and throaty…the old tube has this annoying high-mid pokiness in comparison that makes it sound like a toy. Thank you so much! I was not expecting this much of an improvement. All the best, Phil" |
$199.00 |
in stock |
12AX7 Amperex INSTRUMENTATION GRADE, selected Bugle Boy type tube for Leeds & Northrup, Hewlett-Packard, Honeywell, and others, some red tip, original Holland made. |
New Old Stock original Box and white box. 12AX7 1960s Holland made Bugleboy tubes, produced and screened for critical use in avionics and instrumentation equipment. Some are labelled with the Bugle Boy logo and also have the Leeds & Northrup or other manufacturer label and part number on the glass, some are marked with the selected red tip. In audio use they are very quiet, dynamic, and very engaging to listen to. Similar quality to the rare Telefunken "Selected Tube" medical tubes, only these have the sweet Amperex sound and a lower price! Instrumentation grade tubes are very rare, especially those made by Amperex. MATCHED PAIRS ARE $450.00. We are probably the only dealer in the world that has a significant number of these available. Good stock now, but if you wait...... |
$225.00 |
in stock |
12AX7 Amperex LONG PLATE D-GETTER Bugle Boy SELECTED RED TIP medical grade, special selected Bugle Boy tube, original Holland made. |
New Old Stock white Box, priced per single tube. 12AX7 1950s long plate D getter Holland made Bugleboy tubes, produced and screened for critical use in hospital medical equipment. These are labelled with the Bugle Boy logo and also have the red painted tips, which was only produced for a few years in the late 1950s to early 1960s. In audio use they are very quiet, dynamic, and very engaging to listen to. Similar quality to the rare Telefunken "Selected Tube" medical tubes, only these have the sweet Amperex sound! Similar to the Medical Grade or instrumentation grade tubes, but these have the desirable early long plates and D getters. Priced per single tube. MATCHED PAIRS ARE $600.00. We are probably the only dealer in the world that has a significant number of these available. Fair stock now, but if you wait...... CLIENT COMMENTS: "Hi Brent, I received my red tip matched pair medical grade Amperex and Telefunken a few weeks back. I run an all analog Macintosh rig with a tuner from the 60’s and recent model integrated amplifier/turntable utilizing AT7’s and Ax7's. I never thought much of the tuner, mostly a novelty as a vintage piece after I played it at length, but I can honestly say the minute I replaced these tubes the unit came alive. Literally along the lines of vinyl. I did not expect that. As I broke in the tubes for vinyl playback, I realized all we know but cannot admit to regarding vintage tubes in terms of expanse and detail offered across genres. You did not have the tubes in stock I was looking for but made recommendations on the phone specific to my tastes and rig, and it worked out perfectly. Thank you for all you do for the community and sharing your passion and love for the sport." K.K. |
$299.00 |
in stock |
12AX7 Amperex Bugleboy type, long narrow plates, foil-strip D-getter, 1950s codes. MATCHED PAIR |
New Old Stock, made in Holland, in whitebox and original box. Very rare 1950s date coded BugleBoy type tubes made in Holland. These are the early Holland types, long plate version with the rare foil strip D-getter. These tubes have nearly vanished from circulation, and a matched pair of these are usually not available anywhere in the world. The sweet sounding essence of the Bugle Boy type, these NOS gems have closely matched triodes internally and fair to good labels. Both Bugle Boy and the earlier white "Amperex" label are available, and many OEM labels. Both tubes have 1950s date codes and a Gm match to within two percent. SINGLE TUBES ARE $199.00 EACH. CLIENT COMMENTS: "The Amperex tube returned to the instruments and voices the harmonics and timbre that was previously buried in the mix of every recording I play whether analog or digital. As a musician for almost 50 years I hear what I hear and I am not dreaming this. The Amperex has got only about 20 hours on it from me so I assume it will only sound better over time. Instruments in their own space, a sense of air all around (not to be confused with hiss or fake reverb and/or double tracking), and a sound that can only be described as suddenly hearing in Technicolor (to borrow a film analogy). Each purchase from you is a learning experience for me and you have not let me down. I never knew how important the Tubes were in class A operation and how great the right NOS tubes amplify a small signal into a rainbow of sound. J.M." |
$399.00 per pair |
in Stock |
12AX7 Amperex Bugleboy, EARLY TREBLE CLEF LOGO, Harmon-Kardon, Hammond Green Label, or Fisher Radio Select, Holland made, large halo getterMATCHED PAIR. |
New Old Stock, made in Holland, in whitebox and original box, early 1960s date coded. MORE IN STOCK! Extremely rare early production Amperex Bugleboy type short plates, large halo getter. From 1961 to about 1963 these selected tubes featured the treble clef music symbol next to the Bugle Boy cartoon label on the glass. The Fisher and Hammond green label are aftermarket select for audio use with Fisher and Hammond equipment, same select quality as the treble clef series. This identifies these very limited production tubes as second to none in quality of early 1960s 12AX7 tubes. Labels are good to excellent on this batch. This is a sweet sounding, long lived tube, and it is rare to find really nice matched pairs like these. Single tubes, when available, are $150.00 each. VERY LIMITED STOCK. CLIENT COMMENTS: "Brent, I have never witnessed more change in overall Tone like I did when I installed that Amperex “Treble Clef” Bugle Boy ECC83/12ax7 into the Phase Inverter Slot of my Bigtone Plexi 22. Truly amazing Brent! The Amp even adjusts to Pedals much better than it did before…Amazing! That Tube is worth double what I paid for it Brent! Thank you so much! J. D." |
$299.00 per pair |
Harmon-Kardon in stock |
Amperex 7025/6681/12AX7 Premium industrial grade, Holland made |
New Old Stock in original and white boxes. Holland made white or orange label, or Bugle Boy logo tubes. Low noise version of the 12AX7. The 7025 AND 6681 are not commonly found in an Amperex, and finding ones NOS is VERY rare. These are fine Dutch tubes, with super low noise and sweet sonics, from the 1960s. MATCHED PAIRS ARE $280.00. CLIENT COMMENTS: "These Ampererex tubes are wonderful. I can't imagine a better tube. Play rock from 70s on. At last the sound I'm looking for. I've clocked up more than a hundred hours. Mind blowing. Put the RCA tubes in and pulled them straight out again. Thanks, K.S." |
$140.00 |
one tube in Stock |
SPECIAL "BUTT UGLY" 12AX7 Amperex Bugleboy type, long narrow plates, foil-strip D-getter, 1950s codes. MATCHED PAIR |
NOS, ANOS, who knows??, made in Holland, in whitebox. Very rare 1950s date coded BugleBoy type tubes made in Holland, test like NOS. These are the same as the "pretty boys" listed above at $399 per pair but these are just plain "BUTT UGLY!" Most are totally missing labels, some have parts of a label, some have oddball brands on the label, crooked insides, off center or strange shape getter patch.....you get the idea....UGLY!! These are the early Holland types, long plate version with the rare foil strip D-getter. These tubes have nearly vanished from circulation, and a matched pair of these are usually not available anywhere in the world. The sweet sounding essence of the Bugle Boy type, but with improved dynamics, top end, detail, and tight bass. All have the Heerlen Holland Delta factory mark, the long plates, and the D-getter with the foil strip on the back. SINGLE TUBES ARE $130.00 EACH. Maybe we should call these the "Butthead Boys" but man, they sure sound pretty!! You will be kicking yourself in the butt if you miss out on this bargain! CLIENT COMMENTS: " Sir, I recently purchased a pair of your butt ugly Amperex 12AX7 long plate, D getter w/foil strip tubes. I had been using a pair of Telefunken blue tip 12AX7’s. That came from you. I got them indirectly. These tubes sounder wonderful in my DAC. I can’t say enough about how good these Tele’s sounded. But when I put the foil strip Amperex 12AX7’s into my DAC, something magical happened. These tubes do something that just makes all the instruments so real. I could swear the instruments are in the room with me. I’m not listening to recordings anymore. I now have live performances in my living room. And I’m not comparing these tubes to new Russian junk tubes. I have some really good NOS tubes. I’m not selling my Telefunkens just yet. All I can say is that there is nothing ugly about these Butt Ugly Amperex Tubes. They are Magic. T.G." |
$275.00 per pair |
one tube in Stock |
12AX7 Amperex Bugleboy, Holland made, MATCHED PAIR. |
New Old Stock, made in Holland, in whitebox, 1960s date coded. These are rare, and I don't often have many in stock. Labels, with the original cartoon tube blowing the bugle, are good to excellent on this batch. This is a sweet sounding, long lived tube, and it is rare to find really nice matched pairs like these. Currently we have only single tubes in stock, at $110.00 each. CLIENT COMMENTS: "I wanted to personally thank you for your advice on upgrading my Rogue Audio Ares. I just can't believe what a huge difference the Bugle Boys made in my system. I am so grateful for your recommendations. That was the best $400 upgrade to my system that I've ever made. Sincerely, J.D.S." |
$250.00 per pair |
in stock |
12AX7 Amperex Bugleboy. |
New Old Stock, made in Holland, in original box and whitebox. These are rare, and I don't often have many in stock. Labels are fair to good on this batch. This is a sweet sounding, long lived tube. PRICED PER SINGLE TUBE. |
$125.00 |
in stock |
"Butt Ugly" 12AX7 Amperex Bugleboy. |
New Old Stock, made in Holland, in whitebox. Here we go again with more of these Butt Ugly tubes! These boys look mighty rough, most with just white smudges where the once proud bugler stood. I hate it when that happens! Genuine Heerlen Holland date coded tubes, my loss is your gain. Get off your butt and grab some before they are gone! This is a sweet sounding, long lived tube. PRICED PER SINGLE TUBE. Matched pairs are $170.00. |
$79.00 |
in stock |
12AX7 Amperex/Philips Holland made for Philips, Miniwatt/Dario and other brands. |
New Old Stock in whitebox and original box. These are identical to the Bugleboy types, made in the same Holland factory at the same time. These were intended for sale in Europe, and many carry the Dario/Miniwatt label that was used by Dutch Philips (Amperex)for European distribution. Some are also labelled Philips, R/T, RCA, Eico, Hammond, and other brands. 1960s Heerlen, Holland (Bugleboy factory) date codes on all. This is a sweet sounding, long lived tube. The only difference between these and the more costly Bugle Boy tubes is the label!! MATCHED PAIRS, IF AVAILABLE, JUST $199.00! |
$99.00 |
In Stock |
12AX7 Philips/Amperex made in the Philips Bangalore, India factory, 1960s vintage |
New Old Stock in white box, made in India from Amperex Holland components, made for Various labels. Very rare to find the 1960s India Philips made tubes in the USA. These are great sounding alternatives to the Holland tubes. Pairs, when available, are $150.00. SAVE! |
$79.00 |
out of Stock |
12AX7 Amperex orange globe logo |
New Old Stock in original box, made in Holland. A great vintage Dutch tube still at a decent price, 1970s vintage. Holland made tubes that are great in audio applications. MATCHED PAIRS ARE $190.00. |
$89.00 |
In Stock |
Tube |
SIEMENS / SIEMENS UND HALSKE / VALVO "A detailed, airy sounding tube that makes you think "Telefunken". But wait, there's more! Lower midrange body and a little wetness make this one seductive sounding tube." |
Price Each |
Quantity in Stock |
Siemens Germany made 12AX7 / ECC83 LONGPLATE, Siemens-Halske factory date codes, VERY RARE. MATCHED PAIR |
New Old Stock in white boxes, some labeled for Fisher Radio, Haltron or Sonotron, some are blank. This is a very low noise, seldom seen longplate Siemens 12AX7, made with the old-style Siemens German precision. These have the ultra wide bandwidth of the Telefunken ECC803S, with nearly identical sonics, which are refined, smooth and accurate. All have the early Siemens-Halske factory mark, and all feature long narrow ribbed plates and small halo getters. Compare the price to the more expensive and equally rare Telefunken! Longplate Siemens tubes are actually rarer than the Telefunken ECC803S and sound better, I believe. SINGLES ARE $175.00 EACH. Carefully matched, a very rare chance to grab a matched pair of these superb vintage tubes. |
$350.00 per pair |
out of stock |
Siemens made E83CC, Ultra-low noise premium 12AX7, triple mica, standard pins. EXTREMELY RARE. |
New Old Stock in original box and white box. This is a very low noise, seldom seen special quality 12AX7, made with the old-style Siemens German precision. These have the ultra wide bandwidth of the Telefunken ECC803S. Compare the price to the more expensive and equally rare Telefunken, which sells for up to $500.00 EACH on auction sites and some websites! MATCHED PAIRS ARE $375.00 PER PAIR! Siemens label and some made for Tesla. These tubes are currently soaring in value as stocks of them vanish. |
$199.00 |
one tube in stock |
12AX7 Siemens audio grade selected, Fisher Radio labelled or red tip, GermanyMATCHED PAIRS |
New Old Stock in white box. 1960s vintage. Siemens tubes are somewhat scarce. These are even more so since they have been selected and audio screened for use in Fisher and other brands of hi-fi equipment. They have the German craftmanship and a sound similar to Telefunken smoothplate. All have the Munich factory mark. These fine pairs are all matched to within 2 percent. SINGLE TUBES ARE $125.00 EACH. Excellent quality, grab some while you still can! |
$250.00 per pair |
out of Stock |
12AX7 Siemens, Siemens labelled, GermanyMATCHED PAIRS |
New Old Stock in white box. 1960s vintage. Siemens tubes are somewhat scarce. They have the German craftmanship and a sound similar to Telefunken smoothplate, at a cost savings. All have the Munich factory mark. These fine pairs are all matched to within 2 percent. SINGLE TUBES ARE $99.00 EACH. Excellent quality, grab some while you still can! |
$200.00 per pair |
out of Stock |
12AX7 Siemens, Siemens or OEM labelled, Germany. |
New Old Stock in white box. 1960s vintage. Siemens tubes are somewhat scarce. They have the German craftmanship and a sound similar to Telefunken, in fact, Telefunken sub contracted Siemens to make tubes for them when they were production backlogged. All of these have the Munich factory mark, and they have labels for brands like Telefunken, CBS, Dynacord, Valvo, Zenith, etc. Identical tubes to the Siemens label pairs listed above. One tube made by Lorenz. MATCHED PAIRS ARE $179.00. Excellent quality, grab some while you still can! |
$79.00 |
out of Stock |
Siemens made 5751, Ultra-low noise premium 12AX7, TRIPLE MICA, standard pins. EXTREMELY RARE. |
New Old Stock in original box. This is a early 1960s date coded very low noise, seldom seen special quality triple mica 12AX7, made with the old-style Siemens German precision. These have the ultra wide bandwidth of the Telefunken ECC803S. Compare the price to the more expensive and equally rare Telefunken, which sells for up to $800.00 EACH on auction sites and some websites! MATCHED PAIRS ARE $399.00 PER PAIR! These tubes are currently soaring in value as stocks of them vanish. |
$199.00 |
out of Stock |
12AX7 / ECC83 Valvo, tilted getter |
New Old Stock in white box, made in Germany. These have the white Valvo label and the rare tilted top getter, only found in the late 1950s to early 1960s. A very elusive tube to find. They are similar in quality to Telefunken. MATCHED PAIRS ARE $299.00 PER PAIR. |
$149.00 |
in stock |
12AX7 / ECC83 Rare Longplate Valvo, tilted getter, 1950s vintage |
New Old Stock in white box, made in Germany. These have the white Valvo or Amperex label found in the 1950s, and 1956-1958 date codes. A very elusive tube to find, especially these very scarce longplate tilted getter versions. They are similar in quality to Telefunken, and all have the Valvo Hamburg, Germany factory mark. MATCHED PAIRS ARE JUST $350.00 PER PAIR! |
$175.00 |
out of stock |
Tube |
OTHER EUROPEAN BRANDS"A mix of vintage glass with German tube sonics with the Lorentz, Ei, Tesla, RSD, RFT, and Tungsram, to a Mullard-leaning sound of the vintage Japan made tubes. A few others also, to make tube rolling interesting. Priced right for the undecided." |
Price Each |
Quantity in Stock |
1970s Selected and custom matched Ei Yugoslavia made 12AX7A grey smoothplates, MATCHED PAIRS |
New Old Stock in white boxes. Limited stock! Late 1970s Ei smoothplates, carefully noise tested and then matched on an Amplitrex tester in both fixed and auto bias modes. Supplied with a full test data sheet for each bias test, for each tube. Wonderful in both hi-fi and musical instrument amps. Ei Yugoslavia bought all of the old Telefunken stock and equipment in the 1970s, and produced these grey plate tubes, that sound very close to Telefunken smoothplates! These were about the best to come out of Eastern Europe in the late 1970s, they even flash orange when energized like the vintage Europe tubes do. Nicely hand matched pairs. SINGLE TUBES ARE $99.00 EACH. |
$199.00 per pair |
in Stock |
Psvane ECC83 / 12AX7. |
New Old Stock in original box. Sold in special hand selected matched pairs. The Psvane is a fairly decent current production tube from China, better than most of the current production tubes. With the Russian tubes not currently available, they fill a void in the market for reasonable cost newly made tubes that have otherwise suddenly become scarce. Nicely balanced, then we hand select and custom match pairs to order for you. Less costly than NOS and very good for the price. |
$80.00 per matched pair |
IN STOCK |
12AX7WA, RSD, GOLD PINS. |
New Old Stock in original box. These have the white RSD label, gold pins, and are a superb military version of the 12AX7. A very elusive tube to find, these are 1970s. They are similar in quality to Telefunken. |
$150.00 |
one in stock |
Tungsram made 12AX7, made for various brands. |
New Old Stock in white box. Tungsram made for various brands. These have the Tungsram silver getter support with the silver number tag, OEM label, and are a superb version of the 12AX7. Mid to late 1970s vintage. A very elusive tube to find. Amazing in guitar amps! They are similar in quality to Telefunken. MATCHED PAIRS ARE $140.00. |
$70.00 |
out of STOCK |
RFT made 12AX7, made for Marshall and other brands. |
New Old Stock in white box. RFT Germany made for various brands. These have the wide silver getter support, OEM label, and are a superb version of the 12AX7. Mid to late 1970s vintage. A very elusive tube to find. They are similar in quality to Telefunken. Incredible in guitar amps! MATCHED PAIRS ARE $140.00. |
$70.00 |
IN STOCK |
Psvane 12AX7-T GOLD PIN, Ultra-low noise premium 12AX7. |
New Old Stock in original box. These are Chinese premium hand selected current production gold pin 12AX7 tubes, nicely matched. A very good tube when compared to the more expensive NOS varieties. We have them value priced for each hand matched pair, perfect if your budget does not cover NOS tubes but you want a decent sounding 12AX7!. Hurry, they won't last long! |
$79.99 per pair |
1 pair left In Stock |
Early prewar Ei Yugoslavia made SILVER 12AX7 bright nickel smoothplates, made for Ei and other brands, MATCHED PAIRS |
New Old Stock in white boxes. Wonderful in musical instrument amps. Ei Yugoslavia bought all of the old Telefunken stock and equipment in the 1970s, and produced these tubes, that sound very close to Telefunkens! These rare tubes have bright nickel smooth plates, they even flash orange when energized like the vintage Europe tubes do. Nicely matched pairs. Some are other labels such as Mazda, some are blank organ repair stock, but are Ei made tubes with the Yugoslavia factory date codes on the glass. SINGLE TUBES, WHEN AVAILABLE, ARE $85.00 EACH. |
$180.00 per pair |
1 single in Stock |
Early prewar Ei Yugoslavia made 12AX7A grey smoothplates, various labels MATCHED PAIRS |
New Old Stock in original boxes. Wonderful in musical instrument amps. Ei Yugoslavia bought all of the old Telefunken stock and equipment in the 1970s, and produced these grey plate tubes, that sound very close to Telefunken smoothplates! Just in stock are some nice ones aftermarket screened for use in Marshall and Mesa amps. These were about the best to come out of Eastern Europe in the late 1970s, they even flash orange when energized like the vintage Europe tubes do. Nicely matched pairs. SINGLE TUBES ARE $49.00 EACH. |
$99.00 per pair |
in Stock |
various Russian made 12AX7, Svetlana, EH and other brands. |
New Old Stock in original box. These are all late production Russian made, various major brands. Like most Russian tubes these are getting scarce. Priced per single tube. MATCHED PAIRS ARE $80.00. |
$35.00 |
IN STOCK |
JJ ECC803S, GOLD PIN, Ultra-low noise premium 12AX7. |
New Old Stock in original box and white box. These are Slovak made 12AX7 tubes, with superior low noise performance long plates, GOLD PINS, extra side plate supports and a spiral wound filament. This adds up to this tube being one of the most quiet 12AX7 tubes currently being made. This is a decent current production tube, much smoother sounding than most. We have them value priced for each hand matched pair, perfect if your budget does not cover NOS tubes but you want a decent sounding 12AX7!. Hurry, they won't last long! |
$79.00 |
1 tube In Stock |
12AD7, Ultra-low noise premium type 12AX7. |
New Old Stock in white box. These are Mullard Japan made for NEC. These rare tubes were made for recording equipment where low noise is critical. This adds up to this tube being one of the most quiet 12AX7 tubes ever made. This is a great Mullard Japan made tube, much smoother sounding than most current tubes. Out of production since the 1970s, there are very difficult to find anywhere, but worth the search! This small batch we have was screened for audio use in NEC, Aiwa, and Roberts recording equipment. MATCHED PAIRS ARE $180.00. Hurry, they won't last long! |
$90.00 |
in Stock |
12AX7 / 7025 Selected Dynascan, Allied industrial or Red Tip Low Noise Japanese made. |
New Old Stock in whiteboxes. These are scarce tubes, selected for low noise for Dynascan or Allied Industrial Electronics, or Bell & Howell some with the red painted tip to identify them as meeting critical noise and microphonics testing. Nice tubes, similar to Mullard in construction. Currently we have Dynascan and Allied Industrial stock, Japan made at the Matshushita factory, which was set up by Mullard U.K. All better than the junk being made today, at a lower price! Priced per single tube. MATCHED PAIRS ARE $110. VERY LIMITED STOCK! |
$50.00 |
in Stock |
12AX7 / 7025 Japanese made. |
New Old Stock in original and whiteboxes. Nice tube, similar to Mullard in construction. Many different brands including selected organ tubes, most made in the 1960s at the Matshushita factory, which was set up by Mullard U.K. Some late 1970s types also. All better than the junk being made today, at a lower price! |
$39.00 |
in Stock |
Tube |
RCA "The RCA is the King of rock and roll tubes, without equal. From their throaty growl in 1960s guitar amps, to the sparkle and warmth of the blackplates in a hi-fi, these tubes have it all. Warmth approaching that of the Mullard, this tube is truly a Jack-of-all-Trades and at home in almost any application." |
Price Each |
Quantity in Stock |
1948 to 1956 dated 12AX7 RCA blackplate |
New Old Stock in whiteboxes and original boxes. These are the undisputed peak quality of an American made 12AX7. The 1948-1956 production was special, these tubes sound better than any other USA made 12AX7. Sweetness mated with sparkle at the top, the famous RCA warmth at the bottom, with an accurate 3D sonic image. Nothing like these are likely to ever be made again. These beauties rival the vintage European 12AX7s. Among the rarest of any NOS 12AX7, I usually only have a handful at a time in stock, they are so scarce. Because of this, no picking of dates. Get them now or miss out! Priced per single tube. MATCHED PAIRS ARE $350.00 PER PAIR. |
$175.00 |
in Stock |
Medical or Instrumentation grade red tip or selected label 12AX7 RCA blackplate |
New Old Stock in whiteboxes. More in stock! These are the seldom seen "red tip", Sanborn or L&N instruments selected 12AX7 tubes, aftermarket selected in a critical screening process for use in medical equipment and precision instrumentation uses. Those passing the tests received the red tip and/or Sanborn/L&N label to indicate the grade of tube they were. Sweetness mated with sparkle at the top, the famous RCA warmth at the bottom, with the black plate accurate 3D sonic image. We have just a few medical or instrument grade spare stock from a nearly 60 year old cache of unused tubes. Get them now or miss out! Priced per single tube. MATCHED PAIRS ARE $399.00 PER PAIR. |
$199.00 |
out of Stock |
12AX7 RCA blackplate MATCHED PAIRS |
New Old Stock in original and white boxes. The best of the best in vintage USA tubes, a true classic hi-fi tube from the 1950s. ALSO SEE OUR 5751 BLACKPLATES, BELOW! Fair to good labels on some, some labeled for Baldwin Organ, some have fair original JAN military boxes, all have close internal and external Gm matching. Nothing like these are likely to ever be made again. These beauties rival the vintage European 12AX7s, with warm midrange and nice air at the top end. Nice old D-getter tubes, carefully matched on a Hickok USM118B. These tubes are getting very scarce. CLIENT COMMENTS: "Hi Brent, I just wanted to say how pleased I am with the RCA black plates that I received from you, they simply sound incredible in Marshall amps. My hats off to your great service as well. Thank again. D.M." |
229.00 per pair |
in Stock |
12AX7 RCA blackplate |
New Old Stock in whiteboxes and original boxes, some labels are smeared but these are the genuine D-getter 1950s vintage blackplates. Nothing like these are likely to ever be made again. These beauties rival the vintage European 12AX7s, and are the best bang for the buck going in a vintage USA made 'AX7! Some labeled for Westinghouse or Baldwin but are RCA made. Priced per single tube. |
$115.00 |
in Stock |
SPECIAL: "BUTT UGLY" 12AX7 RCA BLACKPLATE tubes! |
New Old Stock? Almost New Old Stock? in whiteboxes. Save BIG on these genuine RCA BLACKPLATE tubes that are, well....BUTT UGLY! Most are missing labels, some are labelled with oddball brands or mixed construction/types, some have crooked glass or tilted insides, some may be RCA made industrial tubes without labels. This is an accumulation of less-than-pretty RCA tubes that I did not know what to do with. Some were pulls from surplus equipment and test like NOS. A rare chance to try a real RCA black plate at an unheard of low price, we keep selling out of these! All are RCA made, and will sound the same as the pretty RCA tubes, and they are half the price. Don't sit on your butt, get some ugly tubes before they are gone!! Priced per single tube. Matched pairs just $140.00! |
$70.00 |
in stock |
12AX7 early 1950s RCA made longplate greyplate (all longplate types), white or orange label, some low noise screened for Wurlitzer, Baldwin, Lowrey, and other organs and amplifiers, other OEM brands. |
New Old Stock in whiteboxes. These 1950s era longplates have been screened for low noise use in Wurlitzer and other brands of organs, and to exacting specs for various manufacturers of amplifiers. Some are labelled "Wurlitzer by RCA" or "Berlant Concertone" in the old white ink label, or Baldwin in yellow ink, various amp brands, and few are unlabelled, some labeled for other brands or hi-fi brands. Some are early Tung Sol label made by RCA. Wonderful in musical instrument amps, and a very quiet tube for your tube hi-fi, works well in both applications. Probably the best 12AX7 RCA made, maybe even better than the famed blackplates. Organ tubes, being made by famous makers and factory-screened, are about the best "secret" bargain in NOS tubes today. Grab some now before the secret is out! A FEW MATCHED PAIRS AT $150 PER PAIR! |
$75.00 |
In Stock |
12AX7/A RCA greyplate green or red tip INSTRUMENTATION/MEDICAL GRADE |
New Old Stock in whiteboxes. More in stock, lower price! The one, the only.....this is THE tube to have in the V1 slot on any guitar amp, it has that 1960s sound, excellent breakup, and a smoothness than must be heard to be believed! They sound great in tube hi-fi gear also. These have the added advantage of being aftermarket screened for super low noise and uniform output for use as replacement stock for Honeywell Controls, Grommes Precision, Tektronix and other manufacturers of medical, instrumentation, audio and test equipment. Some are blank, others have labels, all are screened selected replacement stock. These are all marked with green or red tips indicating they passed strict aftermarket testing. These are the original 1960s RCA made 12AX7/A tubes from the Harrison, NJ USA RCA tube factory, and are the rare instrumentation grade. We know what the scarce USA made RCA 12AX7/A selected instrumentation tubes look like, many other dealers do not. These are NOT the late 1970s East Germany or Mexico made junk labeled RCA that other dealers will sell you. Wonderful in all musical instrument amps, and tube hi-fi equipment. These tubes are in VERY high demand, and currently getting scarcer than Telefunken 12AX7 tubes, so stock up NOW! The classic USA 12AX7 that rivals the Euros!Matched pairs just $350.00! |
$175.00 |
in Stock |
12AX7A RCA greyplate |
New Old Stock in original and whiteboxes. The one, the only.....this is THE tube to have in the V1 slot on any guitar amp, it has that 1960s sound, excellent breakup, and a smoothness than must be heard to be believed! These are the original 1960s RCA made 12AX7A tubes from the Harrison, NJ USA RCA tube factory. We know what the scarce USA made RCA 12AX7A tubes look like, many other dealers do not. These are NOT the late 1970s East Germany or Mexico made junk labeled RCA that other dealers will sell you. Wonderful in all musical instrument amps, and tube hi-fi equipment. These tubes are in VERY high demand, and currently getting scarcer than Telefunken 12AX7 tubes, so stock up NOW! The classic USA 12AX7 that rivals the Euros!Matched pairs just $199.00! CLIENT COMMENTS: "Brent, I received the RCA grey 12ax7s for my 80 watt Fender '58 Tweed High Power Twin amp today. Your advice was spot on.... amazing! Just how Leo designed it. NOS tubes are so balanced, dynamic, and alive. The new reissue stock tubes that I pulled out were lifeless, flat and not musical sounding. Incredible difference. Thanks again. C.S." |
$99.00 |
in Stock |
7058/12AX7A greyplate, special selected 12AX7A, Premium industrial grade, RCA. |
New Old Stock original box. A great price on a rare tube. This communications grade selected 12AX7A is described as: "the JEDEC registration says it is for mobile operation from storage batteries, and has additional lot tests for filament cycle times, Low frequency Vibration test and a 500 hour test at 15 volts on the filament and Maximum Plate dissipation." In short, one tough tube that has been burned in, and selected to maintain uniform output no matter what. They make one hell of an audio tube! RCA made this tube, and we have RCA, Sylvania, GE, and Motorola labels, all RCA Harrison NJ factory produced. Priced super low, come and get them or miss out! PAIRS ARE JUST $160.00! |
$80.00 |
one tube in Stock |
7025/12AX7A/6681 greyplate, Premium industrial grade, RCA. |
New Old Stock white box. Excellent low noise version of the 12AX7, intended for critical industrial and professional applications. Made just like the 12AX7A greyplates, but the 7025 and 6681 have the bonus of the spiral filament for low noise. This is what is usually called for in Fender amps. MATCHED PAIRS ARE $219.00! |
$109.00 |
in Stock |
SPECIAL: "BUTT UGLY" 12AX7 / 12AX7A RCA greyplate tubes! |
New Old Stock? Almost New Old Stock? in whiteboxes. Save BIG on these genuine RCA tubes that are, well....BUTT UGLY! Most are missing labels, some are labelled with oddball brands or mixed construction/types, some have crooked glass or tilted insides, some may be RCA made 7025 industrial tubes without labels. This is an accumulation of less-than-pretty RCA tubes that I did not know what to do with. Some were pulls from surplus equipment and test like NOS. All are RCA USA made, and will sound the same as the pretty RCA tubes, and they are half the price. Don't sit on your butt, get some ugly tubes before they are gone!!Matched pairs, when available, just $120.00! |
$60.00 |
in stock |
RCA 5751 blackplate, old white label, Specially aftermarket tested for Hewlett-Packard/Sanborn, Burroughs or IBM instrumentation use, red tip marked, Premium industrial grade 12AX7 MATCHED PAIRS |
New Old Stock in white box. These are old and fine 1950s vintage blackplates, quality on par with the blackplate RCA 12AX7 tubes, and are excellent, sweet sounding subs for the hard-to-find 12AX7. These have the added advantage of being aftermarket selected for instrumentation use for Burroughs instruments, and have selected tube red tips. VERY limited stock of these. SINGLE TUBES, WHEN AVAILABLE, ARE $150.00 EACH. |
$300.00 per pair |
out of stock |
RCA 5751 blackplate TRIPLE MICA, old white label, square getter, extra support rods, Premium industrial grade 12AX7 MATCHED PAIRS |
New Old Stock in white box. LARGE STOCK JUST IN! These are old and fine 1950s vintage blackplates, quality on par with the blackplate RCA 12AX7 tubes, and are excellent, sweet sounding subs for the hard-to-find 12AX7. 3 mica spacers with extra side support rods, and the distinctive square getter all add up to vintage quality that will never be made again. Various military labels, some blank military surplus. Carefully hand matched pairs of these gems. SINGLE TUBES, WHEN AVAILABLE, ARE $99.00 EACH. CLIENT COMMMENTS: "Wow. Amazing. Got to play with the RCA 5751 a bunch on Sunday in V1 of my Marshall JMP. Can't really tell if it's lower gain than the RCA 12AX7 blackplate, but just an incredible sounding tube. Lush, full, bright, beautiful. Makes the amp sing. It's my new favorite. Thank you Brent! AP" |
$199.00 per pair |
in stock |
RCA 5751 Premium industrial grade 12AX7, 2 mica |
New Old Stock in white box, thick mica spacers. The best bargain going in a genuine NOS 5751, the RCA set the standard for all the other brands. MATCHED PAIRS ARE $140.00. |
$70.00 |
in Stock |
RCA 5751 blackplate 5751WA Command Series Premium broadcast grade 12AX7 |
New Old Stock in white box. Among the finest 5751 tubes ever made. Orange COMMAND label or military orange JRC5751 label, old logo, 1960s vintage, some with the 5751WA military markings. Some are no label miliary surplus. This type is like the early 1960s JRC 5751WA military RCA made type. RARE, not often in stock. Matched pairs, when available, $210.00 per pair. CLIENT COMMENTS: "The RCA Command 5751...WOW!!!!...for my mic pre, the sound stage is near the Tele ECC83, quite more focused and more 3-D and, of course, a bit more mid-rangy, but pleasantly so...it sounded like me!!!...that's all I was looking (listening) for. It's a winner!!! And thank YOU for your input and help!! You're the best!! Always you look at the customer and what he/she needs." C.A. |
$99.00 |
in stock |
Tube |
GENERAL ELECTRIC "Truly, this is the well-tempered tube. GE tubes are evenly balanced and nicely flat in their response. The higher priced selected, 5751, black plate and long plates add uncolored smoothness to any hi-fi application, while the shortplates are excellent in anything from ham radio to guitar amps, to microphone preamps." |
Price Each |
Quantity in Stock |
12AX7 GE "Selected Tube" medical or instrumentation grade tubes, some with red and green tips |
New Old Stock in original and whiteboxes. An industrial tube selected for low noise in critical avionics and medical equipment use. This is the rare instrumentation version of the GE classic, made during the late 1950s, to early 1960s. Some marked with green or red tips indicating the tube passed testing for repair stock for the instrument maker. Green or red tips, or selected Tube or Tektronix Checked Tube labels, some are GE or blank labels. MATCHED PAIRS ARE $225.00 |
$109.00 |
in Stock |
12AX7 "Pewter Plate" GE/Ken Rad longplate tubes, large D-getter RARE |
New Old Stock in white boxes. More stock just in! This is the first version of the GE classic longplate, with plates that look almost like darkened old pewter, made during the late 1940s. Some labeled Ken Rad. Probably the best sounding 12AX7 GE ever made and a rival to the European NOS tubes. An excellent choice balancing price with the superior sonics of a vintage USA tube! MATCHED PAIRS ARE $199.00 |
$95.00 |
out of stock |
12AX7 blackplate GE longplate tubes, large D-getter RARE |
New Old Stock in white boxes. This is the early version of the GE classic longplate, with blackplates, made during the mid 1950s. An excellent choice balancing price with the superior sonics of a vintage USA tube! MATCHED PAIRS ARE $170.00 |
$79.00 |
out of stock |
"BUTT UGLY" 12AX7 early 1950s GE made longplate greyplate |
New Old Stock in whiteboxes. The famous GE long plates that are, well.....BUTT UGLY!! These long plates are the same as the pretty GE label longplates, but either have blank labels for industrial stock or were made for organs and have various organ brands on them. Some have partial labels, some have tilted getters, but all are fully tested and fully guaranteed. These 1950s era longplates have been screened for low noise use in Wurlitzer and other brands of organs, and to exacting specs for various manufacturers of amplifiers. They are just unfortunately UGLY! Wonderful in musical instrument amps, and a very quiet tube for your tube hi-fi. Probably the best 12AX7 GE made, maybe even better than the famed blackplates. Organ tubes, being made by famous makers and factory-screened, are about the best "secret" bargain in NOS tubes today. Don't sit on your butt, grab some now before the secret is out! |
$40.00 |
in stock |
6681/12AX7 early longplate industrial GE OR Sylvania greyplate |
New Old Stock in white box. This is a very fine industrial 12AX7 type, with the rare early longplates. Can withstand many on off cycles, and filament voltage variations, without any loss in output. Originally made for mobile communications equipment, they are super sweet tubes in guitar amps and hifi units! |
$65.00 |
in Stock |
12AX7 GE longplate tubes |
New Old Stock in original and whiteboxes. This is the early version of the GE classic, with the longer grey plates, made during the late 1950s, early 1960s. Most have the early GE label in white on the glass. MATCHED PAIRS ARE $120.00 |
$60.00 |
in Stock |
12AX7 GE tubes |
New Old Stock in original and whiteboxes, short grey plates. An incredible bargain for a NOS 1960s USA made 12AX7 that is nice and accurate without being too bright or too warm. At home in both hi-fi equipment and guitar amps. Priced about the same as current production tubes but will outperform and outlast them all! CLIENT COMMENTS: "Hey I just want to say thanks to you guys I got my 6V6GTY pair matched and my GE 12AX7 and they're doing really good in my kit 5e3. You know it's always a gamble when you buy tubes online but I got a feeling you guys know what the hell you're doing and I'll be talking to you guys soon. So far so good and thank you so much for sending me some good stuff. I know I didn't buy the most expensive things but what I got was way worth what I paid. E.T." |
$50.00 |
In Stock |
JG 12AX7 or 12AX7WA GE military spec tubes |
New Old Stock in original and whiteboxes. Built to military specs in the USA, these NOS tubes are one of the best bargains in an 'AX7! You get a real USA made tube that is built like a tank, has great tonal balance, and is one of the lowest price 12AX7 tubes we offer. Matched pairs are $140.00 per pair. |
$70.00 | in stock |
7025/6681/12AX7 Premium industrial grade, Magnavox, CBS, or GE, plus other vintage USA made brands. | New Old Stock in original boxes and whitebox. Low noise version of the 12AX7. These are an excellent step up from the 12AX7, and are suddenly a "hot" tube , making them scarce. Get them now or miss out! Some are labeled for Fender or Amperex but are GE 1960s made. |
$70.00 |
in stock |
GE JG5751/WA military or 5-star type, 5751 blackplate triple mica, Premium military grade 12AX7.MATCHED PAIR |
New Old Stock in white box. Gm matched within 5 percent. These are low microphonic TRIPLE MICA blackplates. These rare 1950s vintage tubes have the extra mica wafer at the top of the plate structure, making the tube extra rugged and virtually eliminating any traces of microphonics. Very hard to find these today, especially in a closely matched pair! Some are made for Sun. SINGLE TUBES ARE $99.00 EACH. CLIENT COMMENTS: "Just a quick note to confirm receipt of the tubes today. I took a leap of faith as was serious coin for me but am absolutely dumbfounded by the degree of change in sound. It is not at all subtle! Dynamics, light/dark, texture….just more real in every aspect. The GE 5751 tubes went into the line section and amp section of a Croft Micro 25 and Model 7 Amplifier replacing the stock JJ tubes. Still have 2 stock tubes in the phono section I’ll need to save my pennies and replace at a later date. I’ve owned a few tube amps over my years in this hobby but have religiously resisted sourcing NOS tubes. What a dumbass! Count me as a true believer! Thanks for everything. L.A." |
$199.00 per pair |
In Stock |
5751 greyplate triple mica Premium industrial grade 12AX7, GE 5-star broadcast or JG5751 military, Raytheon, or CBS made by GE |
New Old Stock in original box and whitebox. Lowest price NOS triple mica 5751 tubes ANYWHERE! MATCHED PAIRS ARE $150.00! |
$75.00 |
in Stock |
5751 Premium industrial grade 12AX7, JAN military grade GE and 5-Star GE |
New Old Stock in original boxes, greyplates. Early 1970s production, will outlast and outperform any of the current production crap! Some are GE label, some JAN military, and some other labels. These are Joint Army-Navy tubes or military surplus, USA made by GE, and are a BARGAIN right now. Stock up! MATCHED PAIRS ARE $110.00. |
$50.00 |
in Stock |
Tube |
SYLVANIA "A Swiss army knife of a tube on a budget. The Sylvania has a bright sparkle, and dynamic yet lean midrange with tight bass. They blow away current production tubes, and the black plate and 5751 series stack up nicely against the best of the European tubes." |
Price Each |
Quantity in Stock |
12AX7 and 7025 Sylvania special select instrumentation grade, green and red tips, 1960s vintage. |
New Old Stock in whiteboxes, specially made and selected for Honeywell and Burroughs instruments. Very nice instrumentation/medical graded grey plates, some various labels or blank stock, most green or red (selected tube) tips, all Sylvania USA made. One red tip select 5751 black plate 3 mica also available. Superb sound in audio applications with super low background noise and microphonics. Try some now before the secret is out and the price skyrockets! MATCHED PAIRS ARE $199.00! |
$99.00 |
In Stock |
12AX7 Sylvania blackplate |
New Old Stock in whiteboxes, some labels are smeared but these are the genuine D-getter 1950s vintage blackplates. These resemble the JAN military Sylvania blackplates, and sound as good if not better. These are very hard to find, get 'em while you can! MATCHED PAIRS, WHEN AVAILABLE, ARE $140.00 PER PAIR. |
$70.00 |
out of Stock |
12AX7 Sylvania special select organ (low noise) tubes, 1950s & 1960s vintage. |
New Old Stock in whiteboxes, specially made and selected for Baldwin, Lowrey, Conn, and Wurlitzer organs. A few are for Motorola instruments, some are blank industrial stock tubes. Very nice audio graded grey plates, all Sylvania USA made. These "audio screened" selected organ tubes are the best-kept secret in the 12AX7 world. Matched pairs just $99.00! Try some now before the secret is out and the price skyrockets! CLIENT COMMENTS: "The five tubes you sent me was not a subtle difference in solving my hiss and noise level with my Rogue Cronus Magnum II amplifier, IT WAS A NIGHT and DAY difference-Totally Worth The Investment!!!!!!!! I told my buddy, who is a tube head as well, about my fortune and your company. See Yah! G.T." |
$50.00 |
In Stock |
JHS12AX7A, 12AX7WA JAN Sylvania |
New Old Stock in original military boxes. Rugged military Sylvania tubes that sound great, some of the JAN tubes are relabeled for Philips but are USA Sylvania made. The WA type is military. A nice vintage 12AX7 that is still a bargain! |
$60.00 |
out of Stock |
12AX7 Sylvania |
New Old Stock in original and whiteboxes. A nice vintage 12AX7 that is still a bargain! Client comments: "Brent, Just a note to say the NOS Sylvania 12AX7's sound great in my older Fender guitar amps. What a buy! While I could not afford the more expensive tubes you offer, these were only a few dollars more than your typical new tubes manufactured today and they sound way better to my ears. My amps are now very quiet and have more detail and a "sweetness" they did not have before. I've tried JJ's, the new Tung-Sol's, Electro-Harmonix, Groove Tubes and even the older Fender branded 7025's. None of those sound as good as these. At $30.00 each, they are a good buy for us who own older tube guitar amplifiers. Thanks again, G.C." |
$50.00 |
In Stock |
7025/12AX7 Premium industrial grade, Sylvania. | New Old Stock in original boxes and whitebox. Low noise version of the 12AX7. These are an excellent step up from the 12AX7, and are suddenly a "hot" tube , making them scarce. Many labeled for Burroughs for critical industrial use. Some are 6681 communications grade. Get them now or miss out! |
$70.00 |
in stock |
Sylvania "Gold Brand" or Gold Labelled 5751, Premium 12AX7 |
New Old Stock in original box. A small inventory back in stock of this rare and excellent tube, all from the same military bulk tray. Fine, early military type tubes with gold lettering (often faded) on the glass. Some red tip selected medical grade. These are sweet, clear gold labels! Among the best 5751 types ever made and, lately, huge audiophile demand is making these scarce. Try this legendary tube out while you can, as stocks are vanishing! SINGLE TUBES ARE $120.00. |
$240.00 per pair |
one pair red tips stock |
Sylvania JHS 5751 Triple Mica blackplate Premium 12AX7 |
New Old Stock in original box and white box. Just a few more of these very rare tubes in stock. Fine, early 1960s military tubes with yellow, gold, or green lettering on the glass, some blank label military surplus, TRIPLE MICA, identical to the Gold Brand industrial line, but these have standard pins. Awesome tubes that have reached a peak in demand and are getting scarce! MATCHED PAIRS ARE $199.00 PER PAIR. |
$99.00 |
in stock |
Sylvania Green or gold Labelled JHS 5751, greyplate TRIPLE MICA Premium 12AX7 |
New Old Stock in original box and white box. Fine, early 1960s military tubes with green or gold lettering on the glass (Gold Brand). These sound like the blackplate triple mica versions and you pocket the savings! MATCHED PAIRS ARE $160.00 PER PAIR WHEN AVAILABLE. |
80.00 |
in Stock |
Sylvania BUTT UGLY 5751, greyplate TRIPLE MICA Premium 12AX7, military type |
New Old Stock in white box. These are the same tubes as the military TRIPLE MICA tubes listed above, but are just plain BUTT UGLY! These are missing labels or have strange brands on the label, just ugly old tubes! Fine, early 1960s military tubes that sound fantastic. These sound like the blackplate triple mica versions and you pocket the savings (if you can put up with living with these ugly as sin tubes!). MATCHED PAIRS ARE $120.00 PER PAIR WHEN AVAILABLE. |
55.00 |
out of Stock |
Sylvania Green or gold Labelled JHS 5751, greyplate 2 mica Premium 12AX7 |
New Old Stock in original box. Fine, early 1960s military tubes with green or gold lettering on the glass. These sound like the triple mica versions and you pocket the savings! A few have been re-labeled ECG. MATCHED PAIRS ARE $110.00 PER PAIR WHEN AVAILABLE. |
60.00 |
In Stock |
Tube |
OTHER USA BRANDS AND RARE TYPES"Not to be missed, these tubes are some of the best deals per dollar going in a NOS tube. The rare types equal the best Europeans, while the Raytheon and Tung Sol 1960s smoothness are in a class by themselves. Better try then now, they are getting harder to find as time goes by." |
Price Each |
Quantity in Stock |
12DF7 industrial avaiation grade, VERY RARE ENGINEERING SAMPLES, square getters, Premium industrial grade 12AX7. |
New Old Stock in original box. Very rare engineering samples of these, also very rare aircraft/hospital grade versions of the 12AX7! Seldom seen, but well worth the search, they are super quiet and extremely detailed. These have square top getters and grey plates, with the old yellow Westinghouse label of the early 1960s, and marked Engineering Sample, so these are factory hand selected first production runs!Matched pairs, when available, are $900.00 |
$450.00 |
out of Stock |
12DF7 industrial avaiation grade, Premium industrial grade 12AX7. |
New Old Stock in original box. Very rare aircraft/hospital grade versions of the 12AX7! Seldom seen, but well worth the search, they are super quiet and extremely detailed. These have square top getters and grey plates, with the old yellow Westinghouse label of the early 1960s, some RCA and Raytheon made for DuMont, and on some and blank labels with U.S.A. frosted into the glass. The latter are probably military or NASA surplus that found their way into the repair parts stock for various manufacturers of aircraft radio. Matched pairs, when available, are $600.00 |
$300.00 |
in Stock |
12DT7 / 12AX7 Premium industrial grade, Raytheon blackplate, made for lab use. |
New Old Stock in original and OEM boxes. Low noise industrial version of the 12AX7, made by Raytheon. These were made in the late 1950s and have the black plates typical of that period, and then screened for precision laboratory, aircraft, and early spacecraft commmunications use. This is a nice, but very scarce, version of the 12AX7 that has super low noise and microphonics ratings. Perfect for tube microphone preamplifiers, and the ultimate hi-fi 12AX7. MATCHED PAIRS ARE $300.00 PER PAIR |
$149.00 |
out of Stock |
12AD7 / 12AX7 Premium industrial grade, Sylvania blackplate, made for professional recording equipment use. |
New Old Stock in original boxes. Low noise industrial version of the 12AX7, made by Sylvania. Very scarce as what is mostly seen are Japanese versions made for Roberts or Aiwa tape recorders. These were made in the late 1950s and have the black plates typical of that period, and then screened for precision laboratory, aircraft, recording or commmunications use. This is a nice, but very scarce, version of the 12AX7 that has super low noise and microphonics ratings. Perfect for tube microphone preamplifiers, and the ultimate hi-fi 12AX7. MATCHED PAIRS ARE $300.00 PER PAIR |
$149.00 |
out of Stock |
CBS 7729 / 12AX7 Gold Pin Premium industrial grade, made for lab or avionics use. |
New Old Stock in original boxes. Low noise industrial version of the 12AX7, with heavily gold plated pins. These were made by CBS and then screened for precision laboratory or avionics (Raytheon labeled) use and sometimes sold under the Leeds & Northrop label, with their lab grade number on the tube and box. This is a nice, but very scarce, version of the 12AX7 only made by CBS. Perfect for tube microphone preamplifiers, and incredible in any other hi-fi audio application. MATCHED PAIRS ARE $350.00 PER PAIR. |
$175.00 |
out of stock |
12AX7 Raytheon blackplate organ tubes |
New Old Stock in whiteboxes. These are the genuine 1950s vintage Raytheon shiny blackplates. For a short time we have more of these rare tubes made for organs, most have Baldwin labels. Nothing like these are likely to ever be made again, and these have the added advantage of being factory screened for use in organ audio circuits. These beauties rival the vintage European 12AX7s, and are the best bang for the buck going in a vintage USA made 'AX7! MATCHED PAIRS ARE JUST $140.00 PER PAIR. CLIENT COMMENTS: "Hi Brent, I was having trouble finding the right 12AX7. Until I put one of those Raytheons in there. Lord have mercy does it sound good now. The best tone I’ve ever gotten out of any of my amps. I am astonished. I had one of your Butt Ugly RCA’s in there before I put the Raytheon in. The RCA sounded great but the Raytheon blows me away. Not loud but the tone and harmonics. I think you use the phrase “sounds like liquid glass”. Now I know what that means. I have a lot of amps so I’m glad I’ve ordered a total 10. Heck, I might order some more in the future if they’re not sold out. Please don’t tell any one how good they sound. lol Thanks!! David PS And what a great price!!" AND ANOTHER CLIENT SAID: "in my opinion these Raytheons have to be the most underrated tubes !!!!! The sound now is just so accurate that I Close my eyes and swear it's a live Preformance in my living room ...Best way to describe the sound now is forward sounding powerful with authority i'm not talking about the low-end ...I'm talking about the The mid range and highs there is no brightness or coloration at all tone and texture of piano notes are right on the money of a live preformance it's just flat out accurate!!!!!! P.D." |
$69.00 |
out of stock |
12AX7 Raytheon blackplate |
New Old Stock in whiteboxes and original boxes, some labels are smeared but these are the genuine 1950s vintage Raytheon shiny blackplates. Nothing like these are likely to ever be made again. These beauties rival the vintage European 12AX7s, and are the best bang for the buck going in a vintage USA made 'AX7! MATCHED PAIRS ARE JUST $150.00 PER PAIR. |
$75.00 |
out of stock |
12BZ7 RCA and CBS made black plates, Tung Sol greyplates. |
New Old Stock in original box. A sweet sounding replacement for the 12AX7 at a bargain price! These tubes are about a half-inch taller than the 12AX7 but are otherwise virtually identical. Early RCA and CBS black plates, long out of production, and these will become scarce as audiophiles discover they are a superb replacement for the 12AX7. Two pairs are OEM Tung Sol grey plates, no labels. Try them while the price is still low! Priced per single tube. Some have other brands on the label but are RCA made. Matched pairs are $99.00 per pair. |
$49.00 |
in Stock |
12AX7 "Pewter Plate" Ken Rad longplate tubes, large D-getter RARE |
New Old Stock in white boxes. This is the first version of the GE/Ken Rad classic longplate, with plates that look almost like darkened old pewter, made during the late 1940s. Most are labeled Ken Rad. An excellent choice balancing price with the superior sonics of a vintage USA tube! MATCHED PAIRS ARE $199.00 |
$95.00 |
in stock |
5751 and 12AX7 JAN Tung Sol military or industrial type grey or black plate, D or horseshoe getter, Premium industrial grade 12AX7. |
New Old Stock in white box. Tung Sol, with the old white labels, these are the rare ones everyone wants! Rich and smooth tone with quiet background. Matched pairs, when available, are $190.00 |
$90.00 |
In Stock |
5751 type Tung Sol long greyplate, Premium industrial grade 12AX7. |
New Old Stock in original box. Tung Sol, with the old white labels or OEM labels from the 1950s, identical to the Command series listed below, at a savings! Matched pairs, when available, are $160.00 |
$80.00 |
In Stock |
5751 Raytheon blackplate windmill getter, Premium industrial grade 12AX7. |
New Old Stock in original box. Sweet and smooth 1960s Raytheon 5751 tubes with the rare four bladed windmill shape top getter. Rich and smooth tone with quiet background. Some say these are the best 5751 ever made.Matched pairs, when available, are $250.00. Also, Blackplate with square top getter $80.00 each, when available. |
$125.00 |
out of stock |
5751 Raytheon blackplate Triple Mica, square getter, Premium industrial grade 12AX7. |
New Old Stock in original box. Sweet and smooth 1950s Raytheon 5751 tubes with the rare triple mica and square top getter. Rich and smooth tone with quiet background. Some say these are the best 5751 ever made.Matched pairs, when available, are $220.00. |
$99.00 |
out of Stock |
6681 / 12AX7 Tung Sol early longplates greyplates, Tung Sol made industrial. MATCHED PAIR |
New Old Stock in original box. These are wonderful, old style Tung-Sol tubes with long greyplates, and the old version white label. These rare industrial type 6681 were designed to maintain a uniform output even if the input filament voltage varies. Rock solid and sweet for hi-fi our guitar amp use. These are fast disappearing from the vintage market, so grab some now! A rare matched pair. A FEW SINGLE TUBES AVAILABLE AT $80.00 EACH. |
$160.00 per pair |
1 pair |
7025/12AX7 Premium industrial grade, Magnavox, CBS, or GE, plus other vintage USA made brands. | New Old Stock in original boxes and whitebox. Low noise version of the 12AX7. These are an excellent step up from the 12AX7, and are suddenly a "hot" tube , making them scarce. Get them now or miss out! Some are labeled for Fender or Amperex but are GE 1960s made. |
$70.00 |
in stock |
12AX7 JAN Raytheon, Tung Sol BLACKPLATES. |
New Old Stock in original and white box. These are wonderful, old style military (JAN) Raytheon orange label black plate square getter, Tung-Sol or Ken Rad tubes similar to RCA with blackplates, top square or "D" getter, and the old version orange or white label. These are fast disappearing from the vintage market, so grab some now! MATCHED PAIRS ARE JUST $199.00! |
$99.00 |
out of stock |
12AX7 Tung Sol early longplates (some made by RCA) greyplates, bulk pack stock. MATCHED PAIR |
New Old Stock in whiteboxes or original box. These are wonderful, old style Tung-Sol tubes made by RCA with long greyplates, top "D" getter, and the old version white label (a few made for National with red label). These are fast disappearing from the vintage market, so grab some now! A rare matched pair. A FEW SINGLE TUBES AVAILABLE AT $75.00 EACH. |
$150.00 per pair |
In Stock |
12AX7/A other USA made brands (Motorola, Zenith, Philco, Webcor, etc.) |
New Old Stock in original and whiteboxes. Too many brands to list. ALL are pre-1970 vintage and ALL will outperform the garbage being made today. |
$50.00 |
in stock |
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