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Valve Types and Equivalents

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Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K23B
Double Diode Triode
1935
B5
TDD2A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K250
Rectifier HW

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K300
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K3003
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K3007
Klystron

CV9423

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K301
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K302
Klystron
1954
IO
CV2164 CV323

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K305
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K308
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K3020
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K3020A
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K30K
Triode
1937
B4
PM2HL

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K311
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K312
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K313
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K315
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K317
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K324
Klystron

CV2304

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K328
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K335
Klystron

CV2343

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K337
Klystron

CV4515

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K33A
Triode
1935
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K342
Klystron

CV6003

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K343
Klystron
1958

CV10013 CV6003

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K346
Klystron
1958

CV6003

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K350
Klystron

CV5426

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K351
Klystron

CV2494

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K353
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K3560
Triode
1933
B5

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K357
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K359
Klystron

CV5985

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K361
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K361B
Klystron

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K366
Klystron
1963

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K367
Klystron
1963

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K391
Klystron

CV6194

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K391A
Klystron

CV6142

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K4
Bi-Grid
1924

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K50N
Hexode
1937
B4
PM12M

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K70B
Pentode
1931
B5
PM22A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K77A
Double Output Pentode
1935
B9
QP22A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K90B

IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

K9373B
Camera Tube

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KBC32
Double Diode Triode
1946
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KCF30
Triode Pentode
1946

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KD21
Voltage Stabiliser

0A3 CV3789 G75/2D QS75/40 VR75/30

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KD24
Voltage Stabiliser
1939

0C3 CU686 G105/1D QS1206 VR105/30

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KD60
Voltage Stabiliser
1956

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KD61
Voltage Stabiliser
1956

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KD63
Voltage Stabiliser

CV5107

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KF35
Pentode
1946
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KK2
Octode
1935

BMO61 CV3516 TKK2 VKK2

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KK32
Octode
1946
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KL1
Triode
1927
B4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KL35
Pentode
1946
IO
1F5G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KLL32
Double Pentode
1946
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KR3

CV158

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KR33-31
Neon Lamp

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KR4

CV180

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KR6/1
Velocity Modulated Valve

CV116

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KR6/2
Velocity Modulated Valve

CV237

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KR6/3
Velocity Modulated Valve

CV238

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KRN2
Velocity Modulated Valve (Klystron)
1954

CV87 CV323

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KRN2A
Klystron

CV129 CV223 CV224

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KRN3
Klystron

CV130

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS
Diode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-20
Klystron
1944
IO
723A/B CV1795

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-20B
Klystron

IO
2K25 723A/B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-20D
Klystron

IO
2K25 723A/B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-30
Klystron
1960

6975 VA203B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-40
Klystron
1960

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-40D
Klystron
1960

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KS9-40G
Klystron
1960

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT101
Beam Tetrode

B8B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT2
Beam Tetrode
1937
B5
220HPT 220OT ARP1 CV1118 NR39 PM22A PP2 PT2 Pen220 PenB1 VR118

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT21
Pentode
1937
B5
PM22D Pen231

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT24
Pentode
1939
B5
ARP18 BY3 CV1334 PB2 PP220 PT240 VT51

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT30
Beam Tetrode
1937

CV3519

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT31
Beam Tetrode
1937

CV3520

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT32
Beam Tetrode
1937
IO
25L6G CV1287 CV1502 NR95 VR502

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT33
Beam Tetrode
1937
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT33C
Beam Tetrode
1939
IO
CV1503 VR503

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT35
Beam Tetrode
1940
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT36
Beam Tetrode
1948
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT41
Beam Tetrode
1937
B7
4066A 420T 42MP/Pen 7A2 7A3 A70C A70D AC/Z AC2/Pen APP4B ARP25 CV1181 N41 NR59 OP42 PT4 Pen4VB PenA4 TL44

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT42
Beam Tetrode
1937
B7
7A2 A70B AC/Pen APP4A CV1174 MKT4/5 MKT4/7 MP/Pen N40 P4VA Pen4VA

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT44
Beam Tetrode
1939
B7
11E3 ARP26 CV1340 CV1437 CV1576 CV1577 CV73 VT75A VT75B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT44T
Beam Tetrode
1939

VT75A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT45
Beam Tetrode
1947
B7
CV1825

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT55
Beam Tetrode
1955
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT61
Beam Tetrode
1939
IO
6AG6 6P25 CV1438 CV2938 EL33 N147 OM9

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT63
Beam Tetrode
1937
IO
6F6G ARP17 CV1186 CV1911 NR85

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT66
Beam Tetrode
1937
IO
6L6G CV1075 EL37 PP60 VT75

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT67
Beam Tetrode

CV437

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT71
Beam Tetrode

IO
50L6G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT74
Beam Tetrode

IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT76
Beam Tetrode
1948
IO

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT77
Beam Tetrode

EL34

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT8
Beam Tetrode
1938
B5
CV1079

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT8C
Beam Tetrode
1938
B5
CV1079 VT79

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT807
Beam Tetrode

B5
KT8C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT81
Beam Tetrode
1947
B8B
7C5

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT88
Beam Tetrode
1956
IO
12E13 6550 7D11 CV5220

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KT8C
Beam Tetrode

B5
VT79

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTW61
Beam Tetrode
1939
IO
NR64 POVT193 W61

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTW62
Tetrode
1939
IO
CV1100 VR100

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTW63
Pentode
1938
IO
6K7G ARP15 CV1195 CV1941 NR81 NR86 W63

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTW73M
Tetrode
1937

CV3527

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTW74M
Beam Tetrode

12K7GT CV918 W76

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTZ41
Tetrode
1938

CV1191 CV1698 CV3529 NR76

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTZ63
Pentode
1937
IO
6J7G 6S7 ARP16 CV1074 NR83 VT74 Z63

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTZ73M
Pentode
1937
IO
ARP38 CV1343 POVT149

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KTZ73/6J7G
Pentode
1938

6J7G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KY50
Rectifier EHT

2L2 U25 U47

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

KY80
Rectifier EHT

B9A
2J2 R20 U26 U49

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