VT TUBE CODE CROSS REFERENCE CHART

Due to the numbering schemes in use there are three variant classifications of VTxyz valves; the USA types, the UK military types (VT = Valve, Transmitting), and the UK GPO types. In the cases tabulated below there are more than one valve for a given VT marking. This list was compiled from the CV Register and several other sources. We wish to thank Mr. Jeremy Harmer for his kind permission to allow us to post this list he has very carefully compiled. We also thank the Tube Collectors Association that host the original of this chart, along with the links here to the Virtual Valve Museum. This material is presented free of charge or commercial endorsement or obligation. It is believed to be accurate, but Brent Jessee Recording & Supply, Inc. makes no claims as to it accuracy, and is presented here for your use "as is and as found." Clicking any link on the chart will take you to data and pictures (where available) of the tube listed. This will navigate you away from the audiotubes.com site. To return to this page, click your "back" button, or previous page (return) arrow on your browser.

VT number	Made for/by	CV equivalent	Commercial number	Description
VT1			WE-203A
VT2			WE-205B
VT3
VT4A
VT4B			211
VT4C	USA		JAN 211
VT5			WE-215A
VT6			212A
VT7			WX-12
VT8			UV-04
VT10
VT11
VT12
VT13
VT13B	UK
VT14
VT16
VT17	GPO	CV1608
	USA	CV640	860
VT18
VT19	GPO	CV1612
	USA	CV641	861
VT20	UK
VT21
VT22			204A
VT23	UK
VT24	GPO	CV1636
	USA	CV2675	864
VT25	UK	CV1025
	GPO	CV1637
	USA	CV603	10
VT25A			10 special
VT26	UK	CV1026
	GPO	CV1600
	USA		26
VT27	GPO	CV1601
	USA	CV604	30
VT28			24, 24A
VT29			27
VT30	UK	CV1030
	USA	CV750	0-1A
VT31	UK	CV1031
	GPO	CV1638
	USA	CV947	31
VT32
VT33	GPO	CV1642
	USA	CV949	33
VT34	UK	CV1034
	GPO	CV1614
	USA		207
VT35	GPO	CV1615
	USA	CV1752	35/51
VT36	GPO	CV1602
	USA	CV1775	36
VT37			37
VT38	GPO	CV1645
	USA	CV712	38
VT39			869
VT39A			869A
VT40	GPO	CV1647
	USA	CV2501	40
VT41			851
VT42			872
VT42A	USA		872A special
VT43			845
VT44			32
VT45			45
VT46	UK	CV1046
	GPO	CV1616
	USA	(CV32)	866
VT46A			866A
VT47	UK	CV1047
	GPO	CV1603
	USA	CV1772	47
VT48			41
VT49			39/44
VT50	UK	CV1050
	USA	CV2533	50
VT51	UK	CV1051
	GPO	CV1617
	USA		841
VT52	UK	CV1052
	GPO	(CV1025)
	USA	CV596	45 special
VT53			(VT42A)
VT54	GPO	CV1618
	USA	CV1751	34
VT55			865
VT56	GPO	CV1648
	USA	CV611	56
VT57	GPO	CV25
	USA	CV612	57
VT58	UK	CV1058
	GPO	CV1619
	USA	CV613	58
VT58A	UK	CV1571
VT60	UK	CV1060
	GPO	CV1605
	USA		850
VT60A	UK	CV1572
VT61	UK	CV1061
	GPO	CV1609
VT61A	UK
VT62	UK	CV1062
	GPO	CV1606
	USA	CV621	801, 801A
VT63			46
VT64	GPO
VT65	GPO	CV1649
	USA	CV582	6CG
VT65A			6C5G
VT66	GPO	CV1650
	USA	CV1912	6F6
VT66A	USA	CV1186	6F6G
VT67			30 special
VT68	GPO	CV1651
	USA	CV1891	6B7
VT69	GPO	CV1652
	USA	CV1900	6D6
VT70	USA		6F7
VT72			842
VT73	UK	CV1073
	USA	CV639	843
VT74	UK	CV1074
	GPO	CV1654
	USA	CV1864	5Z4
VT75	UK	CV1075
	GPO	CV1655
	USA	CV614	75
VT75A	UK		KT44
VT76	UK	CV1076
	USA	CV615	76
VT77	USA		77
VT78	GPO	CV1656
	USA	CV2544	78
VT79	UK	CV1079	KT8C
VT80	UK	CV1080
	USA	CV617	80
VT81	UK	CV1081
	GPO	CV1659
VT82	GPO	CV1660
VT83	USA		83
VT84	USA		84 / 6Z4
VT86	GPO	CV1662
	USA	CV1942	6K7
VT86A	USA	CV1941	6K7G
VT86B	USA		6K7GT
VT87	GPO	CV1663
	USA	CV1951	6L7
VT87A	USA		6L7G
VT88	UK	CV1088
	GPO	CV1664
	USA	CV1963	6R7
VT88A			6R7G
VT88B			6R7GT
VT89	UK	CV1089
	GPO	CV1665
	USA	CV833	89
VT90	UK	CV1090
	GPO	CV1732
	USA	CV1930	6H6
VT90A			6H6GT
VT91	GPO	CV1038
	USA	CV1936	6J7
VT91A			6J7GT
VT92	GPO	CV1735
	USA	CV588	6Q7
VT92A			6Q7G
VT93	UK	CV1093
	GPO	CV1666
	USA	CV1894	6B8
VT93A			6B8G
VT94	UK	CV1094
	GPO	CV1667
	USA	CV1933	6J5
VT94A			6J5G
VT94B			6J5 specialy selected
VT94C			6J5G specially selected
VT94D			6J5GT
VT95	GPO	CV1668
	USA	CV1831	2A3
VT96	UK	CV1096
	USA	CV1957	6N7
VT96B			6N7 specially selected
VT97			5W4
VT98	UK	CV1098	(VT98)
	GPO	CV1669
	USA	CV504	6U5 / 6G5
VT98A			(VT98A)
VT99			6F8G
VT100	GPO	(CV1670)
	USA	(CV124)	807
VT100A			807 modified
VT101			837
VT102			cancelled
VT103			6SQ7
VT104	UK	CV1104	(VT104)
	GPO	CV1040
	USA	CV546	12SQ7
VT105	UK	CV1105	(VT105)
	GPO	CV1673
	USA	CV1969	6SC7
VT106	GPO	CV1674	(VT106)
	USA	CV623	803
VT107	GPO	CV1675
	USA	CV510	6V6
VT107A			6V6GT(/G)
VT107B			6V6G
VT108			450TH
VT109	GPO	CV1677
	USA	CV1798	2051
VT111	GPO	CV1679
	USA	CV836	5BP4 / 1802P4
VT112	GPO	CV1680
	USA	CV660	6AC7 / 1852
VT114	UK	CV1114
	GPO	CV1682
	USA	CV1846	5T4
VT115	GPO	CV1683	(PO VT115)
	USA	CV1948	6L6
VT115A			6L6G
VT116	GPO	CV1684
	USA	CV591	6SJ7
VT116A			6SJ7GT
VT116B			6SJ7Y
VT117			6SK7
VT117A			6SK7GT
VT118			832
VT119	GPO	CV1169
	USA	(CV597)	2X2 / 879
VT120	GPO	CV1688
	USA	(CV1095)	954
VT121			955
VT122			530
VT123			RCA A5586 superceded by VT128
VT124			1A5GT
VT125	GPO	CV1689
	USA	CV1805	1C5GT
VT126	GPO	CV1690
	USA	CV573	6X5
VT126A			6X5G
VT126B			6X5GT
VT127	UK	CV1127	(VT127)
	GPO	(CV1187)
			special
VT127A	GPO		(PO VT127A)
			(VT127A)
VT128	GPO	CV1692
	USA	CV2715	1630
VT129			304TL
VT130			250TL
VT131	GPO	CV1168
	USA	CV543	12SK7
VT132			12K8 special
VT133	GPO	CV1695
	USA	CV700	12SR7
VT134			12A6
VT135			12J5GT
VT135A			12J5
VT136	GPO	CV1118
	USA	CV659	1625
VT137	GPO	CV1081
	USA	CV1755	1626
VT138	GPO	CV1623
	USA	CV1756	1629
VT139	GPO	CV399
	USA	(CV216)	VR150/30
VT140	GPO	CV1166
	USA	(CV662)	1628
VT141			531
VT142			WE-39DY1
VT143	GPO	CV1696
	USA	CV625	805
VT144	GPO	CV1371
	USA	(CV26)	813
VT145	GPO	CV243
	USA	CV1861	5Z3
VT146	GPO	CV1625
	USA	CV1823	1N5GT
VT147	GPO	CV1697
	USA	CV1802	1A7GT
VT148	GPO	CV1698
	USA	CV1811	1D8GT
VT149			3A8GT
VT150	GPO	CV1699
	USA	CV1966	6SA7
VT150A	GPO	CV1700
	USA	CV1967	6SA7GT
VT151	GPO	CV1701
	USA	CV578	6A8G
VT151B			6A8GT
VT152	GPO	CV1702
	USA	CV1940	6K6GT
VT152A			6K6G
VT153	GPO	CV1703
	USA	CV837	12C8 special
VT154	GPO	CV1067
	USA	CV629	814
VT155			special
VT156			special
VT158			Zahl tube
VT158			special
VT159			special
VT160			special
VT161	GPO	CV1710
	USA	CV537	12SA7
VT162	GPO	CV1711
	USA	CV697	12SJ7
VT163	GPO	CV1712
	USA	CV1896	6C8G
VT164	GPO	CV1713
	USA	CV723	1619
VT165			1624
VT166			371A
VT167	GPO	CV1716
	USA	CV1945	6K8
VT167A			6K8G
VT168A			6Y6G
VT169	GPO	CV1717
	USA	CV531	12C8
VT170	GPO	CV1718
	USA	CV766	1E5-GP
VT171	GPO	CV1719
	USA	CV782	1R5
VT171A			1R5 (loktal)
VT172			1S5
VT173			1T4
VT174			3S4
VT175			1613
VT176			6AB7 / 1853
VT177	GPO	CV1720
	USA	CV780	1LH4
VT178	GPO	CV1721
	USA	CV778	1LC6
VT179	GPO	CV1722
	USA	CV781	1LN5
VT180	GPO	CV1053
			3LF4
VT181	GPO	CV1052
	USA	CV1790	7Z4
VT182	GPO	CV1723
	USA	CV811	3B7 / 1291
VT183	GPO	CV1724
	USA	CV2709	1R4 / 1294
VT184			VR90/30
VT185	GPO	CV245
	USA	CV815	3D6 / 1299
VT186			special
VT187			575A
VT188	GPO	CV1727
	USA	CV891	7E6
VT189	GPO	CV1128
	USA	CV893	7F7
VT190	GPO	CV1728
	USA	CV895	7H7
VT191	GPO	CV1628
	USA	CV683	316A
VT192			7A4
VT193	GPO	CV1100
	USA	CV1777	7C7
VT194	GPO	CV587
	USA	CV897	7J7
VT195	GPO	CV1863
	USA	CV2874	1005
VT196	GPO	CV509
	USA	(CV574)	6W5G
VT197A			5Y5GT/G
VT198A			6G6G
VT199	GPO	CV124
	USA	CV1993	6SS7
VT200	GPO	CV1065
	USA	CV686	VR105/30
VT201	GPO	CV1056
	USA	CV552	25L6
VT201C			25L6GT
VT202	GPO	CV1054
	USA	CV664	9002
VT203	GPO	CV9
	USA	CV665	9003
VT204	GPO	CV18
	USA	CV789	HK-24G
VT205	GPO	CV1630
	USA	CV1996	6ST7
VT206A			5V4G
VT207	GPO	CV1091
	USA	CV529	12AH7GT
VT208			7B8
VT209			12SG7
VT210			1S4
VT211		CV1978	6SG7
VT212			958
VT213A			6L5G
VT214			12H6
VT215			6E5
VT216			816
VT217			811
VT218			100TH
VT219
VT220			250TH
VT221			3Q5GT
VT222			884
VT223			1H5GT
VT224		CV18	RK-34
VT225			307A
VT226			3EP1 / 1806P1
VT227			7184
VT228			8012
VT229			6SL7GT
VT230			350A
VT231			6SN7GT
VT232		CV6	E1148
VT233			6SR7
VT234			HT-114B
VT235			HY-615
VT236			836
VT237			957
VT238			956
VT239			1LE3
VT240			710A
VT241			7E5 / 1201
VT243			7C4 / 1203A
VT244			5U4G
VT245			2050
VT246			918
VT247			6AG7
VT248			1808P1
VT249			1006
VT250			EF50
VT251			441
VT252			923
VT254			304TH
VT255			705A
VT256			ZP486
VT257			K-7
VT259			829
VT260			VR75/30
VT264			3Q4
VT266			1616
VT267			578
VT268			12SC7
VT269			717A
VT277			417
VT279			GY-2
VT280			C7063
VT281			HY-145ZT
VT282			ZG489
VT283			QF-206
VT284			QF-197
VT285			QF-200C
VT286			832A
VT287			815
VT288			12SH7
VT289			12SL7GT
VT501	UK	CV1501		Beam tetrode

 

This file was last modified 04:23:43, Wednesday January 16, 2013