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Valve Types and Equivalents
    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50
Triode
1937
 
CV2533
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
502A
Thyratron
1948
IO
GL502A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5031
Nixie Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
505AX
Pentode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
506BU
Rectifier FW
1930
B4
CV2645 DW2 R1 S11A U10 UU5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5080-0031
Quartz Crystal
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50A5
Beam Tetrode
1947
B8B
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50B5
Beam Tetrode
1946
B7G
A4388
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50BM8
Triode Pentode
 
 
10PL12 UCL82
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50C5
Pentode
 
B7G
CV1959 HL92
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50CD6G
Beam Tetrode
1951
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50CG
Photocell
 
 
3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU.1 PJ23 R59A WL735
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50L6
Output Beam Tetrode
1941
 
KT71
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50L6G
Output Beam Tetrode
1941
IO
CV2534
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50L6GT
Output Beam Tetrode
1941
IO
CV571 KT71
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50Y6GT
Rectifier FW
1940
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
50Z7G
Rectifier FW
1940
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
51
Pentode
1936
UY
35 G-51
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
517
Rectifier MV
 
 
5557
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5212E
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
527
Triode
1944
 
3-300G4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
52CG
Photocell
 
 
CMG22 CV248 GS16
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
52KU
Rectifier FW
1949
IO
5AQ4 5V4G 5Z4G CV593 CV1863 GZ32
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
53
Double Triode (Class B)
1936
 
CV2535
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
53A
Double Triode
 
 
3-50D4 CV2536
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
53CG
Photocell
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
53KU
Rectifier FW
1958
IO
CV378 GZ33 GZ37 U54
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
54KU
Rectifier FW
 
 
CV593 GZ32
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5458
Voltage Stabiliser
 
 
CV1069 NS1 VS69
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5459
Voltage Stabiliser
 
 
NS2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55
Double Diode Triode
1936
UX6
CV2537
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5544
Thyratron
 
 
CV2210 MT5544+D3828
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5545
Thyratron
1958
B4D
CV2215 GL5545 MT5545 XR1-6400
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5550
Ignitron
1946
 
BK66/5550 GL415 WL681/686
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5551A
Ignitron
 
 
BK42/5551A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5651
Voltage Reference
 
B7G
CV2573
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5651A
Voltage Reference
 
B7G
CV2573
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5552A
Ignitron
 
 
BK24/5552A CV2124
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5553B
Ignitron
 
 
BK146/5553B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5554
Ignitron
 
 
BK44/5554 CV1742
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5555
Ignitron
1961
 
BK46/5555
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5556
Triode
 
UX4
GL5556/PJ8
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5557
Thyratron (Mercury Vapour)
 
 
MT17
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5559
Thyratron (Mercury Vapour)
 
 
MT57
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5560/FG95
Thyratron
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5586
Magnetron (S-band Tunable)
 
 
CV3611
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5586A
Magnetron (S-band Tunable)
 
 
M5083
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55850
Camera Tube (Videcon)
 
 
7038
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55850F
Camera Tube (Videcon)
 
 
P844
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55850N
Camera Tube (Videcon)
 
 
P849
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55850S
Camera Tube (Videcon)
 
 
8541A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5586
Magnetron (S-band Pulse)
 
 
CV3611
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55875
Camera Tubes (Leddicon)
 
 
P8000
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55875B
Camera Tubes (Leddicon)
 
P8000B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55875G
Camera Tubes (Leddicon)
 
P8000G
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55875L
Camera Tubes (Leddicon)
 
 
P8000R
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55875R
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5591
UHF Pentode
1947
B7G
403B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55A/165M
Double Pentode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55B/200A
Tetrode (Power)
 
 
C1134
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55B/400A
Tetrode (Power)
 
 
C178A/5894
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
55CG
Photocell
 
 
CV405
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
56
Triode
1932
UX5
256 A256 C-56 CV611 ER56 G-56 PH256 PH56 VT-56
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
56001
Diode
1960
B8A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5608A
Double Triode
1948
UX7
5608
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5625
Pentode
 
 
ARS6 CV1317
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5632
Thyratron
1957
 
C3J PL5632
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5636
Pentode
 
CV3928 EF730
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5642
Rectifier HW
1953
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5644
Voltage Stabiliser
1961
 
CV3987
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5651
Voltage Reference Tube
1948
B7G
QS1209
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5651WA
Voltage Reference Tube
1948
B7G
QS1212
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5654
Pentode
1948
B7G
CV4010 M8100
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5654W
Pentode
1954
B7G
5654 6AK5W
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5655
Image Orthicon
1949
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5656
Double Beam Tetrode
1957
B9A
CK5656 CV2970
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5657
Magnetron (S-band Tunable)
1959
 
CV3958
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5663
Thyratron
1963
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5670
Double Triode
1952
B9A
2C51 396A CV2831 CV4013
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5670W
Double Triode
1952
B9A
2C51 396A CV2831 CV4013
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5671
Triode (Power)
 
 
BR189
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5672
Subminiature Output Pentode
 
 
CV2238 XFY15
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5673
Beam Tetrode
 
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5675
Triode
1954
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5675A
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5675LS
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5676
Subminiature Triode
1956
 
CV2239 XFR3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5678
Subminiature RF Pentode
 
 
CV2254 XFR2 XFR5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5684/C3JA
Thyratron
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5685/C6JA
Thyratron
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5686
Pentode
1952
B9A
CV3612
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5687
Double Triode
1956
B9A
5687WA 5687WB CK5687 CV2578
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5687WA
Double Triode
 
 
5687
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5687WB
Double Triode
 
B9A
5687
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5691
Double Triode
 
 
CV3705
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5692
Double Triode
1948
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5693
Pentode
1948
IO
CV3699
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5696
Thyratron
1948
B7G
CV3512 EN92
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
57
Pentode
1932
UX6
CV612
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
57.
Thyratron (Mercury Vapour)
 
 
BT5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
57..
Rectifier FW
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5702
Pentode
 
 
CV3895
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5702WA
Pentode
 
 
CV5057
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5703WA
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5718
Triode
1957
B8D & B8D/F
CV3930 EC71
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5719
Triode
 
 
CV4008
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5720
Thyratron (Mercury Vapour)
 
 
BT5 CV1147
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5722
Noise Diode
1955
B7G
SD1033
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5725
Pentode
1950
 
CV4011 M8196
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5726
Double Diode
1952
B7G
6AL5W CV4007 E91AA M8212
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5727
Thyratron
 
B7G
CV4018 M8204
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5728
Thyratron (Mercury Vapour)
 
 
BT5 CV1147
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5734
Mechano-Electronic Transducer
1948
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
572A
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
572B
Triode
1961
UX4
811A T160L
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5731
Triode
 
 
E1C
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5734
Triode Transducer
1948
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5744
Triode
 
 
CV163
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5744WA
Triode
 
 
CV163
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5749
Pentode
1951
 
CV4009
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5750
Heptode
1951
B7G
CV4012
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
575A
Rectifier MV
 
 
AH2511
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5751
Double Triode
1953
B9A
CV4017
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
575A
Rectifier HW
 
 
ESU400
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5762
Triode (Power)
 
 
ACT30 BR191B CV2383 TY6-5000A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5762/7C24
Triode (Power)
 
 
CV2383
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5762A
Triode (Power)
 
 
CV2383
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5763
Beam Tetrode
1949
B9A
6062 6062 A4541H BR1130 CV2129 M8096 QE03-10 QE03-12 QV03-12
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
577
Rectifier HW
 
577WA CV3969
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5783
Voltage Stabiliser
 
 
CV3933
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5783WA
Voltage Stabiliser
 
 
CV3960 CV4066 M8190
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5784
Pentode
 
 
CV3896
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5784WA
Pentode
 
 
CV5058
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5794
Triode UHF Oscillator
1956
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5796
Thyratron
 
 
CV3706 XR1-1600
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
57CV
Photocell
1950
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
58
Pentode
1936
UX6
6D6 CV613
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5814
Double Triode
 
B9A
CV4016 ECC802
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5814A
Double Triode
1954
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5814WA
Double Triode
 
 
CV4032
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5820
Camera Tube (Image Orthicon)
1957
5820A/E P807
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5820A
Camera Tube (Image Orthicon)
 
 
5820A/E
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5820A/E
Camera Tube (Image Orthicon)
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5820A/L
Camera Tube (Image Orthicon)
 
 
5820A/E
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5822A
Ignitron
1960
 
BK168/5822A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5829
Double Diode
 
 
CV3898
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5829WA
Double Diode
 
 
CV5059
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5830
Thyratron (Mercury Vapour)
 
 
BT69
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5840
Pentode
1957
B8D & B8D/F
CV3929 EF732
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5840W
Pentode
1957
B8D & B8D/F
CV3929 EF732
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5842
Triode
 
 
CV3789
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5852
Rectifier FW
 
 
CV3943
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5861
Triode
 
 
ME1001
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5866
Triode
 
B5F
CV1924 TY2-125
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5866A
Triode
 
 
CV1924 RS1006B TB2.5/400 TY2-125
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5867
Triode
 
 
CV1350+D2168 TY3-250
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5868
Triode
1953
 
TY4-500
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5869/AGR9950
Thyratron
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5870/AGR9951
Thyratron
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5876
Triode
1964
 
5876A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5876A
Triode
1964
5876
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5879
Pentode
 
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5881
Beam Tetrode
1954
IO
6L6WGB 6L6WGC
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5885
Double Tetrode
 
 
CK5885
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5894
Double Beam Tetrode
1955
B7A
5894B AX9903 CV424 QQV06-40 RS1009
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5894/C178A
Double Beam Tetrode
1955
 
5894A CV2797 QQV06-40A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5894A
Double Beam Tetrode
 
 
5894/C178A CV2797 QQV06-40A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5894B
Double Beam Tetrode
1958
 
CV424 QQE06-40
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5895
Double Beam Tetrode
 
 
QQZ04-15
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5899
Pentode
1958
B8D & B8D/F
EF731
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
58CV
Photocell
1951
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
59
Pentode
1936
UX7
CV2538
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5902
Pentode SQ EL71
1959
B8D & B8D/F
CV4029 EL71
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5906
Pentode
 
 
CV3931
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5923
Triode (Power)
 
 
BW1165
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5924
Triode (Power)
 
 
BW1165
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5932
Beam Tetrode
1952
IO
6L6WGA CV3899
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5948
Thyratron (Hydrogen)
 
 
CX1140
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5948A
Thyratron (Hydrogen)
 
 
CX1140
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5949
Thyratron (Hydrogen)
 
FX2519A/5949A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5949A
Thyratron (Hydrogen)
 
 
FX2519A/5949A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5954
Camera Tube
1947
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5956
Thyratron (Hydrogen)
 
 
FX2517
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5957
Thyratron (Hydrogen)
 
FX2517
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5957E
Thyratron
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5958/E40
Thyratron (Hydrogen)
 
 
FX2513
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5958/E41
Thyratron (Hydrogen)
 
 
FX2513
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5963
Double Triode
1954
B9A
CV3900
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5965
Double Triode
1954
B9A
CV5843 E180CC
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5977
Triode
 
 
CV3932
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