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Valve Types and Equivalents
    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3
AF Triode
1926
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3-250A
Power Triode
1946
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3-25D3
Triode (Power)
1945
 
3C24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/105B
Triode
 
 
CV809
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/108A
Triode
1947
CV1653
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/141A
Triode
1946
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/144AY
Triode
1940
UVThe Shaw Base
4104D
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/146J
Triode
1947
CV16 CV53
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/147J
Triode
 
 
CV82
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/148J
Triode
 
 
3A/145J CV88
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/154M
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A/167M
Triode
 
B8B
437A CV5112 EC20
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A3
Rectifier EHT
1954
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A4
Pentode
1945
B7G
CV807 CV2390 DL93 E1485
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A5
Double Triode
1942
B7G
CV808 DCC90
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3A8GT
Diode Triode Pentode
1940
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3AFP31
Cathode-Ray Tube
1960
B9G
24D DH7-91
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3AL5
Double Diode
1955
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3AP1
Cathode-Ray Tube
 
 
CV602
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3AV6
Double Diode Triode
1958
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3AZP31
Cathode-Ray Tube
1963
CV8108 DHM9-11
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/102B
Triode
 
 
4033A CV84
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/151A
Triode
1937
 
4205E CV1648 M4205E
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/200B
Triode
 
 
CV1047 T20G TZ05-20 VT47
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/24W
Rectifier HW
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/240M
Triode
 
B8B
CV2214
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/241M
Triode
1958
CV5116
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/29
Rectifier HW
 
 
3B24W
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/401J
Triode
 
 
CV127 DV34 S30A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B/501A
Triode
 
 
CV49
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B2
Diode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B21
Rectifier FW
 
 
38401 CV2959 EL302.5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B22
Rectifier FW
1953
UX4
CV3815 EL1C
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B24
Rectifier HW
 
UX4
732A CV709 CV812
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B24W
Rectifier HW
 
UX4
CV2858
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B24WA
Rectifier HW
 
UX4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B26
Rectifier HW
1959
 
CV3575
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B28
Rectifier HW
1952
UX4
2V/400A 3885A 866A AH201 CV32 CV1835 ESU866 RG3-250A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B4
Pentode
1948
B7G
CV2240 DL98 HD30
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3B7
Double Triode
1949
B8B
1291 VT-182
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3BP1
Cathode-Ray Tube
1944
B14A
CV814
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C22
Triode
 
CV999
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C23
Thyratron
1945
UX4
GL3C23
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C24
Triode
1945
UX4
25T 3-25D3 B1109 CV789 HK24G PE130A VT-204
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C33
Double Triode
1946
B7A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C34
Triode
 
 
25T CV941 HK24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C4
Pentode
1953
 
1P1 DL96 N25
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C45
Thyratron (Hydrogen)
 
UX4
BT79 CV372 FX227 XH3-045
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C45/6130
Thyratron (Hydrogen)
 
 
FX227
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C45/PL345
Thyratron (Hydrogen)
 
 
FX227
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3CP1-S1
Cathode-Ray Tube
1942
1808-P1 VT-248
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3C800E
Triode (Power)
 
 
B1153
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3CX100A5
Triode (Power)
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3CX3000A7
Triode (Power)
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3D
Magnetron
1940
CV1255 E1189
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3D6
Output Beam Tetrode
1942
 
1299A 1299 3D6/1299 CV815 DL29 VT-185
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3D6/1299
Pentode
1942
 
3D6 CV815
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3D22
Thyratron
1958
B7D
3870A 4G/401A CV2851 R6241
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3DP1
Cathode-Ray Tube
1942
CV816
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3DT6
Pentode
1957
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3E29
Double Beam Tetrode
 
B7A
829 829B CV632
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3EG1
Cathode-Ray Tube
1958
 
CV1526
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3F10TA
Triode (Power)
 
 
BW179
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3F10TR
Triode (Power)
 
 
BR179
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3F15TR
Triode (Power)
 
 
BR161
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3G15
Thyratron (Xenon)
 
 
AFX203
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3GK5
Triode
1961
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3J/121E
Triode (Power)
 
 
ACT9 CV28
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3J/192E
Triode (Power)
 
 
BR1165
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3J/202E
Triode (Power)
 
 
BR1162
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3K3000LQ
Klystron (CW Amplifier)
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3K4
Rectifier FW
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3K50000LF
Klystron (CW Amplifier)
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3KM3000LA
Klystron (CW Amplifier)
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3L5T
Triode (Power)
 
 
BR1162
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3NF
Triple Triode
1926
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3NP4
Cathode-Ray Tube
 
 
CV1737 MW6/2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3Q4
Pentode
1950
B7G
CV818 DL95 N18
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3Q5
Output Beam Tetrode
 
IO
CV819 DL33 N16
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3Q5GT
Pentode
1938
IO
CV819 DL33 N16
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3RP1A
Cathode-Ray Tube
1955
B12A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3S4
Output Beam Tetrode
1941
B7G
1P10 CV484 CV820 DL92 N17
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3S4/DL92
Pentode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V/340B
Thyratron (Mercury Vapour)
 
 
BT19
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V/390B
Thyratron (Mercury Vapour)
 
 
BT5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V4
Pentode
1946
B7G
1P11 CV1633 DL94 N19
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V4/DL94
Pentode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V/490A
Thyratron (Mercury Vapour)
 
 
BT17
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V/500A
Thyratron (Mercury Vapour)
 
 
BT95
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3V5T
Triode (Power)
 
 
BW1162
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
3X2500A3
Power Triode
1946
 
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