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Valve Types and Equivalents

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Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4
Triode

B4

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4.TSP
Pentode
1939
B7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4/1
Cathode-Ray Tube
1937

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4/100BU
Rectifier FW
1937

FW4/500 U18/20

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-125
Beam Tetrode (Power)

C1108

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-125A
Beam Tetrode (Power)
1946

4D21 C1108 CV2963 QY3-125 TT16

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-250
Beam Tetrode (Power)

C1112

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-250A
Beam Tetrode (Power)
1946

C1112 QY4-250

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-250A/5D22
Beam Tetrode (Power)

C1112

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-400A
Beam Tetrode (Power)

C1136

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-65A
Beam Tetrode

CV1905 QY3-65

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4-THA
Triode Hexode
1938
B7
A36C AC/TH1 CV826 TH4A TH4B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4AV6
Double Diode Triode
1958
B7G

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B/550E
Tetrode (Pulse Amplifier)

C1148

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B/551E
Tetrode (Pulse Amplifier)

C1166

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B/602E
Tetrode (Pulse Amplifier)

C1149/1

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B/603E
Tetrode (Pulse Amplifier)
1962

C1150/1

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B31
Rectifier HW

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B33
Rectifier HW

CV2518

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4B3L
Rectifier HW

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4BZ7
Double Triode
1956

4BQ7A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C/603E
Tetrode (Pulse Amplifier)
1962

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C21
Triode
1943

211 CV2576 VT-4C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C25
Triode
1938

CV707 HK54

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C27
Micropup Triode

CV92 REL7

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C28
Micropup Triode
1943

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C35
Thyratron
1954
CV1787 FX2505 PL435 XH8-100

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C35A
Thyratron

CV5247 FX2505 XH8-100

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4C35/PL435
Thyratron

FX2505

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CM4
UHF Triode
1958
B9A
PC86

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CPX250K
Tetrode (Power)
1970
8590

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CV75000A
Tetrode (Power)

CY1170J

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CW1000A
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CW25000a
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX1000A
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX1000K
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX10000D
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX1500B
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX15000A
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX250B
Tetrode (Power)
1960
B8F
7203

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX250FG
Tetrode (Power)
1960
B8F
E3280

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX300A
Tetrode (Power)
1956
8167

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX35000A
Tetrode (Power)
1962

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX35000C
Tetrode (Power)
1962

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4CX5000A
Tetrode (Power)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4D1
Triode
1936

3A/172B AR7 C30B CV1000 CV1109 DA HL1320 HL13C NR55 VR109

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4D21
Beam Tetrode

4-125A C1108 CV2963 TT16

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4D32
Beam Tetrode
1945
B7A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4DI
Triode
1936

CV1000

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4DL4
Triode

PC88

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4E27
Pentode

CV824 HK257B

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4EP1
Cathode-Ray Tube
1956

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4EW6
Pentode
1959

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4F21
Tetrode (Power)

C1108

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4FNG45
Cathode-Ray Tube

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4FY5
UHF Triode
1961

PC97

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4GC
Photocell

814A CE2 GS117A NU2 R71A WL737

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4GP
Cathode-Ray Tube
1958

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4GSM
Photocell

3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU.1 PJ23 R59A WL735

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4HG8
Triode Pentode

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J31
Magnetron (S-Band Pulse)

CV1914

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J32
Magnetron (S-Band Pulse)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J33
Magnetron (S-Band Pulse)
1945
CV1916

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J34
Magnetron (S-Band Pulse)

CV1897 CV2744

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J35
Magnetron (S-Band Pulse)

CV1898

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J43
Magnetron (S-Band Pulse)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J44
Magnetron (S-Band Pulse)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J50
Magnetron (S-Band Pulse)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J50A
Magnetron (X-Band Pulse)

CV2284

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J52A
Magnetron (X-Band Pulse)

CV5018

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J53
Magnetron (S-Band Pulse)

CV513

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4J78
Magnetron (X-Band Pulse)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4JC/201E
Tetrode (Power)

6166A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4JC/201S
Tetrode (Power)

CR192A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4KC/160M
Tetrode (Power)
1961
B8F
CCS1 Y-799

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4KM100LA
Klystron (TV Amplifier)

K376

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4KM100LF
Klystron (TV Amplifier)

K377

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4KM50000LA3
Klystron (TV Amplifier)

K365

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4KM50000LQ
Klystron (TV Amplifier)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4KM50000LR
Klystron (TV Amplifier)

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4MA7
Magnetron (Q-Band Pulse)

M5057

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4P(Gold Line)
Output Triode
1926

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4PR60A
Tetrode (Pulse Amplifier)

C1133

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4PR60B
Tetrode (Pulse Amplifier)

C1149/1

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4SH
Hexode

CV1126 VR126

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4THA
Triode Hexode
1938
B7
A36C AC/TH1 X41

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4TP
Triode Pentode
1939
B7
CV827

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4TSA
Tetrode
1938

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4VDE
Triode
1925

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4X140D
Beam Tetrode

CV3991

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4X150A
Beam Tetrode

B8F
7034 CV2519 QV1-150A

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4X150D
Beam Tetrode

7035 CV3991

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4X150G
Beam Tetrode

CV3893 QV1-150

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4X250B
Beam Tetrode

CV2487

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4XP
Output Triode
1930

11P4 AC044 LP4 P12/250 PP3/250 PX4 S30C

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4Y35
Rectifier FW
1930

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4YSGAC
Tetrode
1930
B5
S4VB SS4YSGAC

Type
Structure
Date
Base
PDF
Sensibly equivalent^¶ to:

4Z60C
Rectifier FW
1942

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