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Valve Types and Equivalents

    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T10
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T140
Rectifier HW
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T15
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T20
Triode
 
UX4
CV3722
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T21
Beam Tetrode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T25D
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T307
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T31
Thyratron
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T311
Rectifier HW
1942
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T40
Triode
 
 
TZ41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T41
Thyratron
1940
MO
CV1121 CV3723 VGT121
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T450
Triode
1919
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T4D
Diode
 
 
D1
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T50-1
Triode
1949
UX4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T5890-202
Cathode-Ray Tube
1966
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
T921Z
 
 
 
CV464
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TB24
Double Diode
1935
B5
2D4A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TB4320
Pentode
1936
Ct8
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TC05/25
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TC05/25-01
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD03-10
Triode
 
CV273 CV5956 DET22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD03-10F
Triode
 
 
CV2204
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD3-12
Planar Triode
 
 
2C42 CV2932
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD03-5
Triode
1954
 
CV352 CV354 CV354 DET23
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD04-20
Triode
 
 
CV397 DET24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD05-12
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD1-100
Triode
 
 
2C39A CV2516
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD2
Triode
1927
B4
210LF L210 L2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TD41
Double Diode Triode
1937
 
TDD4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TDD13C
Double Diode Triode
1935
B7
11D3 13DHA CV1419 DDT13 H4D HL/DD/1320
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TDD2A
Double Diode
1934
B5
AR10 CV1308 CV3726 HD24 L21DD
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TDD4
Double Diode Triode
1933
B7
11A2 A23A AC/DDT AC/HL4DD AC/HLDD CV3727 DDT4 DDT4 DDT4160 DDT DT41 DT436 H4D MHD4 TBC14
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TE474
Pentode
1934
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TE994
Triode
1934
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH13
Triode Hexode
1936
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH13C
Triode Hexode
1936
 
6AJ8 6C12 ECH81 X719
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH2
Triode Hexode
1939
B7
CV1410
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH21C
Triode Hexode
1936
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH22C
Triode Hexode
1937
B7
302THA TH2321 TH29 TH30C
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH232
Triode Heptode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH2320
Triode Heptode
1936
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH2321
Triode Heptode
1938
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH233
Triode Heptode
1939
MO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH30C
Triode Hexode
1939
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH4
Triode Hexode
1936
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH41
Triode Heptode
1939
MO
CV1411
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH4A
Triode Hexode
1938
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH4B
Triode Heptode
1938
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TH62
Triode Hexode
1939
 
ECH35
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ThS49
Thermal Delay Switch
 
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TII
Rectifier HW
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TL44
Pentode
1936
 
42MP/Pen 42OT AC2/Pen KT41 N41 PenA4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TM
Triode
1916
B4
R.
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TP1340
Triode Pentode
1935
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TP22
Triode Pentode
1934
B9
CV1344
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TP23
Triode Pentode
1937
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TP25
Triode Pentode
1938
MO
BVA172 CV1345
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TP26
Triode Pentode
1939
 
CV3735
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TP2620
Triode Pentode
1934
B9
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Triode
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TS1
UHF Triode
1934
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TS1a
UHF Triode
1934
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TS4
Triode
1926
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TS41
Triode
1942
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TS6
UHF Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TSE4
Secondary Emission Valve
1938
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TSP4
Pentode
1936
B7
AC/SP3 ARP11
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT10
Beam Tetrode
1954
813 C143 CV26 QY2-100
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT100
Beam Tetrode
1970
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT11
Beam Tetrode
1947
IO
CV1501 E1192 VT501
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT12
Beam Tetrode
 
B9G
CV524
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT15
Double Beam Tetrode
 
 
44A/160M CV415 CV4046
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT16
Beam Tetrode
 
 
4-125A 4D21 CV2963
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT20
Double Beam Tetrode
 
 
2B52 55B/200A 6252 6252 6850 AX9910 C1134 CV2799 CV5938 QQE03-20 QQV03-20A QQV03-20 RS1019 SRS4452
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT21
Beam Tetrode
 
 
7623 CV8286
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT22
Beam Tetrode
 
IO
7624
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT23
Double Beam Tetrode
 
 
CV2466 CV5473 QQE02-5 QQV02-6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT24
Double Beam Tetrode
 
 
CV2798 QQE03-12 QQV03-10 RS1029
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT25
Double Beam Tetrode
 
 
AX9903 C178A C178A/5894 CV2797 CV424 CV5937 ML5894 QQE06-40 QQV06-40A RS1009 SRS4451
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT4
Triode
1937
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TT4A
Triode
1939
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Tuneon
Tuning Indicator
1934
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Tunograph
Tuning Indicator
1933
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TV4
Tuning Indicator
1936
Ct8
CV1412 ME4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TV4A
Tuning Indicator
1938
Ct8
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TV6
Tuning Indicator
1937
Ct8
EM1
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TX4
Triode Hexode
1936
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY1-50
Power Triode
 
 
4304CB 834 CV1062 CV1288 DET12 NT58 VT62
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY19
Double Beam Tetrode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY2-125
Power Triode
 
 
CV1924
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY3-250
Power Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY4-350
Power Triode
 
 
833A CV635
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY4-400
Power Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY4-500
Power Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY4-500B
Power Triode
 
 
CV167
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY6-5000A
Power Triode
 
 
5762 ACT30+D2572 BR191B CV3926
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY7-6000A
Power Triode
1956
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY7-6000W
Power Triode
1956
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TY86F
Rectifier EHT
 
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TYS5/2000
Power Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TYS5-3000
Power Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TZ05-20
Triode
 
 
3B/200B CV1047 VT47
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TZ20
Triode
 
 
CV3742
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
TZ40
Triode
 
UX4
DA41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Tetrode
Tetrode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Type 1
Bolometer
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Type 4
Bolometer
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Type 7
Bolometer
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Type A
Triode
1917
 
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