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Valve Types and Equivalents
    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/102D
Pentode
1946
IO
5A/166D 6P12 CV1724 POVT183
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/152M
Pentode
 
B8B
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/156M
Pentode
1947
B9G
CV380 CV1136 EF54
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/157D
Pentode
 
 
CV358 EF37A OM5B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/160H
Pentode
 
 
6AM6 EF91
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/160K
Pentode
 
 
EF91
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/162D
Pentode
 
 
5A/166D 6P12 CV1724
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/163K
Pentode
1956
B9A
CV1635
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/170K
Pentode
 
B9A
6688 CV3998 E180F EF861 PTT216
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/175G
Pentode
 
B8D & B8D/F
CV4518
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/204D
Beam Tetrode
 
 
11E2 CV276
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5A/180M
Pentode
 
B8B
436A PTT243
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5AQ4
Rectifier FW
1949
IO
CV593 GZ32
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5AR4
Rectifier FW
1952
IO
CV1377 GZ34
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/110M
Pentode
1947
B8B
CV8263
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/250A
Beam Tetrode
 
UX5
807 ATS25A CV124 CV1060 CV1364 QV05-25 VT60A VT60
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/251M
Beam Tetrode
 
B8B
5B/254M CV428
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/252M
Beam Tetrode
 
 
5B/255M CV391
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/253M
Beam Tetrode
 
 
CV499
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/254G
Beam Tetrode
 
 
CV2465
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/254M
Beam Tetrode
1957
B8B
5B/251M CV428
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/255M
Beam Tetrode
1957
B8B
5B/252M CV391 CV8028
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/256M
Beam Tetrode
1957
 
5B/253M CV499
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/257M
Beam Tetrode
1957
 
CV2220
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/258M
Beam Tetrode
1957
 
CV2347
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/502A
Pentode
 
 
CV1096 VT96
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B/900A
Tetrode (Power)
 
 
C1158
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5B21
Rectifier HW
1945
217283
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5BHP
Cathode-Ray Tube
1958
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5BP1
Cathode-Ray Tube
 
 
CV601
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5C22
Thyratron
1955
B4D
8503 CV2520 CV3540 PL522 XH16-200
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5C22/HT415
Thyratron
 
 
8503
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5C22/PL522
Thyratron
 
 
8503
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5C/450A
Pentode
1947
CV1506 CV1630 VT506
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5C4M
Rectifier FW
 
IO
5U4M 5Y3GB
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5CG4
Rectifier FW
1957
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5CP1
Cathode-Ray Tube
 
 
CV600
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5CX1500A
Pentode (Power)
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5D/100A
Pentode
1939
CV1627
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5D21
Pulse Tetrode
 
 
CV427 P552/1E
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5D22
Tetrode (Power)
 
 
C1112
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5D22/4-250A
Tetrode (Power)
 
 
C1112
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5EA8
Triode Pentode
1960
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5EW6
Pentode
1959
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5F22
Tetrode (Power)
 
 
C1112
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5F23
Tetrode (Power)
 
 
C1136
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5FP7
 
 
IO
CV718
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5GS7
Triode
1967
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5H69A
Rectifier MV
 
 
869B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5HG8
Triode Pentode
 
 
LCF86
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5J/180E
RF Pentode
1956
CV445
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5J29
Magnetron
1946
CV3842 GL-5J29 GL5J29
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5J30
Magnetron
1946
CV3608
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5J32
Magnetron
1946
CV1538 ZP646
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5R4
Rectifier FW
1952
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5R4GY
Rectifier FW
 
IO
CV717
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5R4GYA
Rectifier FW
1957
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5R4GYB
Rectifier FW
1961
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5R4WGA
Rectifier FW
1958
 
CV4026
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5R4WGY
Rectifier FW
1955
IO
CV2835
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5S
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5T4
Rectifier FW
1937
IO
VT-114
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5T4G
Rectifier FW
1938
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5U4G
Rectifier FW
1938
IO
53KU 5T4 CV575 CV1575 U52 VT-244
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5U4GB
Rectifier FW
1956
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5U4M
Rectifier FW
 
 
5Y3GB
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5V4
Rectifier FW
1937
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5V4G
Rectifier FW
1937
IO
52KU 5AQ4 CV729 GZ32
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5W4
Rectifier FW
1936
IO
CV1849 VT-97
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5W4G
Rectifier FW
1940
 
CV842
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5W4GT
Rectifier FW
1940
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5X4
Rectifier FW
 
 
CV1852
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5X4G
Rectifier FW
1937
 
CV1851
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5X8
Triode Pentode
1955
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y3G
Rectifier FW
1936
 
CV1268 CV1854 U50
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y3GB
Rectifier FW
 
 
5U4M
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y3GT
Rectifier FW
1936
IO
5Y3GT/G CV1856 U50 VT-197A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y3GTA
Rectifier FW
 
 
5Y3GT/G CV1856 U50 VT-197A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y3WGTA
Rectifier FW
 
IO
CV4027
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y3WGTB
Rectifier FW
 
IO
CV4027
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Y4G
Rectifier FW
1937
 
CV1857
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z3
Rectifier FW
1936
UX4
22S/200A 4274A CV1861
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z3P
Rectifier FW
 
IO
5Z3PA
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z3PA
Rectifier FW
 
 
5Z3P
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z4
Rectifier FW
1935
IO
CV1864 VT-74
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z4G
Rectifier FW
1940
IO
52KU AU13 CV1863 GZ32 R52 U50
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z4GT
Rectifier FW
1940
IO
CV2748
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z4GY
Rectifier FW
1940
IO
CV1863
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
5Z4P
Rectifier FW
 
IO
 
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