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Valve Types and Equivalents

Extras ▼

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20
Output Triode
1937

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20.
Triode
1920
UV The Shaw Base

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

200-0069
Thyratron (Mercury Vapour)

BT19

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2000

18049 68506

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20026
Triode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

201-A
Triode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

201A
Triode
1922
UV The Shaw Base
CT-201A UX201A+D4823

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

202
Barretter

CV1200 NS3

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

202DDT
Double Diode Triode
1936
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

202STH
Triode Hexode
1937
B7
C36A TH21C TH2321

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

202VP
Pentode
1938
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

202VPB
Pentode
1938
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

203THA

1938
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

204A

ES204A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2050
Thyratron

IO
CV2565

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2050A
Thyratron
1948
IO
EN32 ME1501

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2051
Thyratron

IO
CV1798 VT-109

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

206D(While Line)
Detector Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

206H(Red Line)
RF Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

206L(Green Line)
AF Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

206RC(Blue Line)
RCC Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

207

ESW207

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20A1
Triode Hexode
1938

41STH AC/TH1 CV1194 CV1424 NR84 X41

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20A2
Thyratron
1957
IO
2050 4G/281D CV1848 WT-210-0004 WT-246 XB7674

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20A3
Thyratron
1944

2D21 4G/280K CV797 E1955 EN91

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20CG
Photocell
1949

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20CV
Photocell
1949
B8B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20D1
Double Diode
1949
B7G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20D2
Triode Hexode
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20D3
Diode Heptode

12AH8

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20D4
Triode Heptode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20F2
Pentode
1949
B8A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20L1
Triode

B8A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20P1
Pentode
1951
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20P3
Beam Tetrode
1952
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20P4
Pentode
1953
IO
CL30

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20P5
Beam Tetrode
1948
B8A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

20PE20
Camera Tube

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

21
Triode

CV620

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2101
Output Pentode
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2102
Triode
1935
UX6

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2103
Double Output Pentode
1935
UX7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210DDT
Double Diode Triode
1938
B5
CV1044 H20 HD24 HL21/DD K23B TDD2A VR44

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210DET
Triode
1930

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210DG
Bi-Grid
1931

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210HF
Triode
1928
B4
HL2 HLB1 PM1HF

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210HL
Triode
1931
B4
CV1050 CV2571 HL2K K30C K30D K30K PM2HL VT50

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210LF
Triode
1929
B4
AR9 CV1021 CV1027 CV1307 K30B L21 L210 L2 PM1LF VR21 VR27

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210PG
Heptode
1934
B7
CV1043 FC2 K80A VHT2A VR43 X22

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210PGA
Heptode
1938
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210RC
Triode
1929
B4
H2 H210

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210SPT
Pentode
1934
B7
CV1049 SP210 SP2 SPT2 VR49 Z22

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210VPA
Pentode
1938

CV2574 W21

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

210VPT
Pentode
1934
B7
ARP13 CV171 CV1083 CV1332 K50M NR41 VP21 VP210 VP2 VPT2 VR83

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

211
Triode

242C 4242A CV25 CV2576 ES85 UE311 UV-211 VT4C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

211A
Triode

4242A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

212E
Triode

4212E

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2151
Output Pentode
1940
UX6

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215D(While Line)
Detector Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215H(Red Line)
RF Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215L(Green Line)
AF Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215A
Triode
1919

38015 4215A CW-1344 CW-38015 CW1344 R215A VT-5 WE215A Wecovalve

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215P
Triode
1930
B4
P215

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215S.G.
Bi-Grid

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

215SG
Tetrode
1929
B4
CV1018 CV1048 PM12 S23 S2 SG215 VR18 Z21

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

216A
Triode
1922
UV The Shaw Base
R216A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

21A1
Thyratron (Hydrogen)+B370

4G/320D 6574

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

21A6
Pentode

B9A
CV5077 N152 N359 PL81

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

21LU8
Triode Beam Tetrode
1970
B12C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

21VO6
Pentode

EL822

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

22
RF Tetrode
1936

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220B
Double Triode (Class B)
1933
B7
AR16 CV1032 VR32

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220DD
Double Diode
1934
B5

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220HPT
Pentode
1932
B5
KT2

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220LF
Triode
1952

AR15 CV1313

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220IPT
Pentode
1938
B7
ARP14 CV1333 Z22

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220OT
Pentode
1937
220HPT K70B KT2 PM22A PT2 Pen220 PenB1

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220P
Triode
1929
B4
CV1020 P2 PM2 VT20

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220PA
Triode
1931
B4
CV1022 K30G L2 LP2 LP2 P220 P220 PB1 PM2A VR22

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220PT
Pentode
1932
B4
CV1051 PM22C Pen220A VT51

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220R
Triode

AR14 CV1312

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220SG
Tetrode
1928
B4
SG220

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220TH
Triode Heptode
1938

CV1082 TH2 X24

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220VPT
Pentode
1942

ARP24 CV1338

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220VS
Tetrode

B4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

220VSG
Tetrode
1931
B4
CV1028 S215VM VR28

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

222B
Rectifier HW

4222B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2255
Camera Tube (Videcon)

8626

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2255ROE
Camera Tube (Videcon)

8541A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

2255IND
Camera Tube (Videcon)

P849

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

225DU
Rectifier FW
1937
B7
CV1454

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

226
Triode
1927
UX4
26 CX-326 UX-226

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

227
Triode
1927

27 DE-1 ER227 G-27 MY227 NY227 SY227 UY227

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

227A
Triode
1944

3-100E3

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

228A
Triode

4228A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

22M1
Glow Modulator
1946

1B59

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

22V/310A/F
Rectifier FW MV
1939
UX4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

230HPT
Pentode
1931
B4
PM22

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

230PT
Triode
1929
B4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

230XP
Triode
1929
B4
CV1023 VT23

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

238B
Ignitron

BK46/5555

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

239A
Triode
1927
UX4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

23D
Cathode-Ray Tube
1952
B12B
CV1588 VCR139A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

23Z9
Double Triode Pentode
1967
B12C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24
Tetrode

324 CV936

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

240B
Double Triode (Class B)
1933
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

240QP
Double Pentode
1936
B7
QP21 QP22B QP230 QPT2

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

242A
Triode

4242A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

242C
Triode

211 4242A CV25 ES85 UE311

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

244V
Triode
1930
B5
TE244

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

245
Output Triode
1929

345 45 CV610 UX245

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

249B
Rectifier MV
1936
UX4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24A/24E
Tetrode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24B1
Trigatron

CV6008

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24B9
Trigatron
1971
CV6008 CV6173

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24A
RF Tetrode
1938

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24D
Cathode-Ray Tube

3AFP31 DH7-91

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24E
RF Tetrode
1938

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24G
Triode
1944
UX4
3C24 HK24 VT-204

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

24S
RF Tetrode
1936

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

250TH
Triode

CV2589

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

251
Barretter
1934

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

252A
Triode
1926

WE252A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

253
Triode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25A6
Pentode
1936

CV549

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25A6G
Output Pentode
1936
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25A6GT
Output Pentode
1940

CV550

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25A7GT
Output Pentode Rectifier HW
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25B5
Double Trode
1940
UX6

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25B8GT
Triode RF Pentode
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25C6G
Beam Tetrode
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25E6
Pentode
1956

25F7 PL36

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25L6
Output Pentode
1937
IO
CV552

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25L6G
Output Pentode
1937

CV551 CV1287 KT32

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25L6GT
Output Pentode
1937
IO
CV553 KT32

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25N6G
Double Triode
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25RE
Rectifier FW
1940

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25SN7GT
Double Triode

CV423

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25T
Triode
1945

3C24 CV941 HK24

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25TG
Triode
1945

3C24

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25U4GT
Rectifier HW

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25W4GT
Rectifier HW
1950

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25X4G
Rectifier HW

IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25Y5
Rectifier FW
1941
UX6
CV942

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25Z4G
Rectifier HW
1939
IO
U31

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25Z5
Rectifier FW
1936
UX6
CV555

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25Z6
Rectifier FW
1936

CV558

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25Z6G
Rectifier FW
1936
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

25Z6GT
Rectifier FW
1938
IO
CV559

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

26
Triode
1927
UX4
226 CV943 REN326 UX226

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

260A
Tetrode

4260A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

26A7GT
Double Tetrode

CV3577

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

26AQ8
Double Triode
1954
B9A
UCC85

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

27
Triode
1935
UX5
UY-227

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

270A
Triode

4270A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

272
Rectifier MV

5557

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

274A
Rectifier FW

4274A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

279A

4279A CV669

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

27GB5
Pentode

PL500 PL504

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

27M1
Photomultiplier
1954
931A CV337

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

27M2
Photomultiplier

CV5085

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

27S
Triode
1936

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

27SU
Rectifier HW

IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

281
Rectifier HW

UX281

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

282A
Tetrode

4282A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

28AK8
Triple Diode Triode

UABC80

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

28D7
Double Beam Tetrode
1943
B8B
CV945 CV946

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

29C1
Diode

IO
CV430

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

29D15
Ionisation Sensor

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