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Valve Types and Equivalents

    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H125
Triode
1926
B4
4215A Wecovalve
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H141D
Diode Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H2
Triode
1932
 
CV2977
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H210
Triode
1929
B4
B228
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H2D
Triode
1934
 
CV2977
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H30
Triode
1934
 
CV2979
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H310
Triode
1925
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H406
Triode
1926
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H41
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H410
Triode
1929
 
CV2981
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H42
Triode
1936
B7
CV1180 NR60
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H4D
Double Diode Triode
1933
 
11A2 AC/HL/DD DDT4 DDT DH42 MHD4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H4E
Diode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H610
Triode
1929
 
CV2982
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H63
Triode
1937
IO
6F5G CV1073 VT73
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
H85-255/80
Barretter
1939
B4
85-255V0.08A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HA1
Triode
1936
 
CV1171 NR50
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HA2
Triode
1936
955 CV1059
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HAA91
Double Diode
1957
 
12AL5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HABC80
Triple Diode Triode
1953
B9A
19AK8
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HAD
Double Diode Triode
1935
 
11D3 13DHA HL/DD/1320 TDD13C
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HBC90
Double Diode Triode
1950
B7G
12AT6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HBC91
Double Diode Triode
 
 
12AV6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HD14
Diode Triode
1940
1H5GT CV1818 DAC32
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HD21
Double Diode Triode
1934
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HD22
Double Diode Triode
1934
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HD23
Double Diode Triode
1938
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HD24
Double Diode Triode
1939
B5
210DDT AR10 CV1308 CV2985 DDT2 L21DD TDD2A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HD4
Diode Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF
Triode
1924
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF-Amplifier
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF-Relay
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF100
Triode
 
 
CV2987
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF130
Pentode
 
 
838 CV638 RK58
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF210
Triode
1926
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF93
Pentode
 
 
12BA6 CV1928
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HF94
Pentode
 
 
12AU6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HK24
Triode
1944
 
24-G 24G 25T 3C34 CV745 CV941
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HK24G
Triode
1945
 
3C24 B1109 CV789
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HK257B
Pentode
 
 
4E27 CV824
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HK54
Triode
1938
UX4
4C25 CV707
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HK645
Triode
 
 
CV670
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HK90
Heptode
1950
B7G
12BE6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL/DD/1320
Double Diode Triode
1934
 
11D3 13DHA CV3503 HAD TDD13C
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL10
Triode
 
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL13
Triode
1934
Ct8
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL1320
Triode
1934
B7
4D1 AR7 C30B CV1000 CV1109 CV3502 DA HL13C NR55 VR109 VT100B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL133
Triode
1938
 
CV2998
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL133DD
Double Diode Triode
1938
MO
CV2999
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL13C
Triode
1935
Ct8
4D1 C30B CV1109 DA HL1320
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL2
Triode
1931
B4
210HF CV1673 HLB1 PM2HL
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL210
Triode
1929
B4
AR4 CV1303 CV3500 PM1HF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL21DD
Double Diode Triode
1934
 
210DDT CV1044 VR44
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL22
Triode
1938
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL23
Triode
1938
MO
3A/205D CV1130 CV1586 CV2994 VR130
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL23DD
Double Diode Triode
1938
MO
AR8 BVA132 CV1306 CV2995
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL2K
Triode
1934
B4
210HL CV1050 HL2 PM2HL VT50
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL310
Triode
1925
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL4
Triode
1935
B5
CV1173
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL41
Triode
1938
MO
3A/204D CV24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL41DD
Double Diode Triode
1938
MO
CV2996
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL42DD
Double Diode Triode
1939
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL607
Triode
1929
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL610
Triode
1930
 
CV3501
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL63
Double Diode Triode
 
 
CV2997
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL92
Pentode
1950
B7G
50C5 CV1959
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HL94
Pentode
1956
 
30A5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HLA2
Triode
1933
 
41MTL 904V AC2/HL HLA2 MH41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HM04
Heptode
 
 
6BE6 EK90 X77
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HN309
Triode Pentode
1956
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP2
Diode Triode
1933
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP2018
Pentode
1932
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP210
Pentode
1934
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP215
Pentode
1934
B7
210SPT HP210 SPT2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP4101
Pentode
1935
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP4101C
Pentode
1938
 
8AI AC/SG CV1282
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP4106
Pentode
1935
B5
E447 S434N
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP4106C
Pentode
1939
 
9A1 AC/VP1 CV518 MVSPen VMP4G VPT4G
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HP6
Pentode
 
 
6AM6 6F12 8D3 CV138 EF91 Z77
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HPT220
Pentode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR1
Rectifier HW
 
 
2T/270K 6305 HR2 R10
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR11
Rectifier HW
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR12
Rectifier HW
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR2
Rectifier HW
1936
 
2T/270K 6304 CV261 HR1 R10 R20
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR210
Triode
1933
B4
PM1HL
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR3
Rectifier HW
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR6
Rectifier HW
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HR9
Rectifier HW
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HS252
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HS256
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HTB2
Barretter
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HU8525
Barretter
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HVR1
Rectifier HW
1936
 
CV1134 NU34 VU134
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HVR2
Rectifier HW
1937
B4
CV1134 CV1291 NU33A NU34 VU134
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HVR2A
Rectifier HW
1937
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HX966B
Rectifier HW
 
UX4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HY615
Triode
 
IO
615-CHY CV3506 VT-235
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HY75
Triode
 
IO
CV751
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
HY90
Rectifier HW
 
 
35W4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Horned
Triode
1916
 
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