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Valve Types and Equivalents

    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S1/3iII
Thyratron
1941
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S104/1K
Thermal Switch
1958
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S11E12
Beam Tetrode
1959
IO
7971 CV4060 CV8077 L.5B/280K
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S12
Pentode
1938
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S130
Voltage Stabiliser
1935
B4
AW3 CV1110 CV1582 VS110
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S130A
Voltage Stabiliser
 
 
CV3694
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S130P
Voltage Stabiliser
 
 
CV45 GTR120A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S19G6
Rectifier HW
 
 
CV4057 L.2S/280K
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S19G6F
Rectifier HW
 
 
CV4042 L.2S/280F
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S2
Tetrode
1932
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S215
Tetrode
1929
B4
CV3695
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S215A
Tetrode
1931
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S215B
Tetrode
1931
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S215VM
Tetrode
1932
 
220VSG CV1028 VR28
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S217
Pentode
1935
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S22AF
Heil Tube
 
 
CV39
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S23
Tetrode
1933
B4
CV3691 CV3692
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S3
Triode
1919
NR9 V24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S24
Tetrode
1933
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S27A
Triode
 
 
CV82
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S2P20
Pentode
 
 
7973 CV4097 L.5A/220K
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S2P21
Pentode
 
 
L.5A/221K
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S410
Tetrode
1929
 
CV1159 NR23 PM14
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4143P
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4145B
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4161P
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4250
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S435N
Pentode
1933
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4V
Pentode
1929
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4VA
Pentode
1930
B5
MS4B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S4VB
Pentode
1930
B5
CV1677
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S.609C-59M
Camera Tube
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S610
Tetrode
1929
 
CV3698
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S625
Tetrode
1927
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S6F12
Pentode SQ EF91
1958
 
CV4014
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S6F17
Pentode
1961
B7G
CV4040 L.5A/210K
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S6F17F
Pentode
1961
 
CV4041 L.5A/210F L.5A/210G
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
S6F33
Pentode
1961
B7G
6F33 CV2209 CV4064
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SC1/1400
Corona Voltage Stabiliser
1959
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SC1/600
Corona Voltage Stabiliser
1956
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SC2/3000
Corona Voltage Stabiliser
 
CV5844
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Scope Tube
Cathode-Ray Tube
 
Ct8
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD
Diode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD1033
Noise Diode
1955
 
5722
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD2
Triode
1929
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD20
Diode
1934
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD4
Diode Tetrode
1933
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD6
Diode
 
B7G
CV1989
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD6/12/10
Rectifier HW
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SD61
Diode
 
 
6D1 EA50
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SE
Photocell
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG
Tetrode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG20
Tetrode
1932
B5
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG210
Tetrode
1927
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG215
Tetrode
1931
B4
CV3702
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG220
Tetrode
1927
B4
220SG
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG220S
Tetrode
1935
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG250
Tetrode
 
 
CV1031
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SG2V
Tetrode
1932
B4
220VS PM12M S215VM SE220 VS24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SH342
Thermal Delay Switch
1946
B7G
CV342 DLS19VLS631
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SL2-787
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-16
Triode
1928
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-16 Blue
Triode
1928
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-16 Green
Triode
1928
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-16 Red+A4237
Triode
1928
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-18
Triode
1925
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-18 Blue
Triode
1926
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-18 Green
Triode
1925
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-18 Red
Triode
1925
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP-18RR
Triode
1927
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP13
Pentode
1934
Ct8
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP1320
Pentode
1934
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP13C
Pentode
1935
B7
13SPA 8D2 C50B CV3704
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP141
Pentode
1939
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP181
Pentode
1940
MO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP2
Pentode
1934
B7
210SPT ARP2 CV1320 SPT2 Z21 Z22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP210
Pentode
1936
 
210SPT ARP4 CV1049 CV1322 VR49
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP215
Pentode
1934
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP22
Pentode
1938
MO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP220
Triode
1933
B4
230XP PM252 UD2N
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP2200
Pentode
1936
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP25
Beam Tetrode
 
 
KT61
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP4
Pentode
1933
B5
8A1 A50A AC/S2 AC/SG ARP6 CV1324 CV1324 CV1468 HP4101C MS/Pen MSP4 SPT4A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP41
Pentode
1938
MO
5A/207D ARP19 CV1335 CV1574 CV1699 CV1700 VR65A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP41/U
Rectifier HW
1927
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP42
Pentode
1938
MO
ARP20 CV1336 NR79
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP42/U
Rectifier FW
1927
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP43/U
Rectifier HW
1928
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP45/U
Rectifier HW
1928
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP4B
Pentode
1935
 
CV3703
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP55R
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP6
Pentode
 
 
6AM6 8D3 CV138 EF91
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP61
Pentode
1941
MO
ARP36 CV118 CV260 CV1065 VR65
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP610/B
Triode
1928
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP610/G
Triode
1928
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SP610/RR
Triode
1928
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SPAX7-A
Double Triode SQ 12AX7
 
B9A
12AX7 12DT7 6057 6L13 B339 CV492 E2162 ECC83
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Special
Triode
1923
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SPT2
Pentode
 
 
210SPT SP2 Z22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SPT4A
Tetrode
1936
 
8A1 AC/HP AC/S2/Pen AC/SG CV1282 HP4101C MS/Pen MS4B MSG/HA MSP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SPTA
Pentode
1936
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS10
Triode
1926
 
PM2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS11
Triode
1926
 
PM6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS11A
Triode
1927
 
PM256
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS12
Triode
1927
 
PM5X
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS13
Triode
1927
 
PM5B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210D
Triode
1931
 
PM2DX
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210DDT
Triode
1934
 
TDD2A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210DG
Triode
1931
 
PM1DG
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210HF
Triode
1928
 
PM1HF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210HL
Triode
1933
 
PM1HL
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210LF
Triode
1928
 
PM1LF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS210RC
Triode
1928
B4
PM1A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS215P
Triode
1928
B4
PM2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS215SG
Tetrode
1929
 
PM12
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS215VSG
Pentode
1932
 
PM12M
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS217D
Triode
1930
 
PM2DX
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS218HP
Pentode
1934
 
SP2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS218SG
Tetrode
1928
 
PM12A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS218VP
Pentode
1934
 
VP2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS218VSG
Pentode
1932
 
PM12M
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS220B
Triode
1933
 
PM2B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS220P
Triode
1929
 
PM2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS220PA
Triode
1931
 
PM2A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS220Pen
Pentode
1932
 
PM22A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS220SP
Triode
1931
 
PM202
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS225D
Triode
1929
 
PM2DX
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS230Pen
Pentode
1928
 
PM22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS230PP
Pentode
1928
 
PM22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS230SP
Triode
1929
B4
PM252
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS240SP
Triode
1931
 
PM252
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS2AHF
Triode
1926
 
PM1HF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS2ALF
Triode
1926
 
PM1LF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS2HF
Triode
1926
 
D.3HF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS3HF
Triode
1926
 
DE3B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS3LF
Triode
1926
 
PM4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4
Triode
1926
 
DFA1
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4075HF
Triode
1928
 
PM3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4075RC
Triode
1928
 
PM3A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4075SG
Tetrode
1928
 
PM14
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS410D
Triode
1929
 
PM4DX
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS410P
Pentode
1928
 
PM4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS415PP
Pentode
1928
 
PM24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS420SP
Triode
1928
 
PM254
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS425SP
Triode
 
 
PM254
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4DAC
Triode
1929
 
164V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4DDTAC
Double Diode Triode
1933
 
TDD4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4DetAC
Triode
1930
 
164V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4DGAC
 
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4DXAC
Triode
1931
 
904V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4GPAC
Triode
1930
 
354V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4HLAC
Triode
1933
 
224V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4LAC
Triode
1931
 
164V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4MMAC
Tetrode
1932
 
MM4V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4PAC
Triode
1929
 
104V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4Pen
Pentode
1929
 
PM24A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4PenAAC
Pentode
1933
 
Pen4VA
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4PenAC
Pentode
1931
 
Pen4V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4PenM
Pentode
1932
 
PM24M
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4PenSP
Pentode
1931
 
PM24A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4SGAC
Tetrode
1929
 
S4V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4SPAC
Triode
1931
 
054V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4VMAC
Tetrode
1932
 
VM4V
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4XSGAC
Tetrode
1930
 
S4VA
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS4YSGAC
Tetrode
1930
 
S4VB
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS6
Triode
1926
 
DFA4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS6075HF
Triode
1928
 
PM5X
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS6075RC
Triode
1928
 
PM5B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS6075SG
Tetrode
1929
 
PM16
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS610D
Triode
1929
 
PM6D
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS610P
Triode
1928
 
PM6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS617PP
Pentode
1929
 
PM26
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS625SP
Triode
1928
 
PM256
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS625SPA
Triode
1930
 
PM256A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS7
Triode
1927
 
PM4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS7A
Triode
1927
 
PM254
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS8
Triode
1928
 
PM3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SS9
Triode
1926
 
PM5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSHP1AC
Pentode
1933
 
SP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSHP2AC
Pentode
1933
 
VP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSHV4/1
Triode
1931
 
AC064
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSHV4/2
Triode
1931
 
AC044
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSHV6/5
Triode
1930
 
D025
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSIH120/350
Rectifier FW
 
 
IW3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSIH60/250
Rectifier FW
 
 
IW3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSU465
Rectifier FW
 
 
DW4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSU765
 
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSW120/350
Rectifier FW
 
 
DW3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSW120/500
Rectifier FW
 
 
DW4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSW432
Rectifier FW
 
 
DW1
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSW462
Rectifier FW
 
 
DW2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SSW60/250
Rectifier FW
 
 
IW2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST11
Voltage Stabiliser
 
B4
CV1070
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST21
Triode
1926
 
PM1HF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST21A
Triode
1926
 
PM1A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST22
Triode
1926
 
PM1LF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST23
Triode
1926
 
PM2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST4
Rectifier FW
 
 
CV1846
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST41
Triode
1926
 
PM3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST41A
Triode
1926
 
PM3A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST42
Pentode
1926
 
PM4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST43
Triode
1926
 
PM254
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST61
Triode
1926
 
PM5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST61A
Triode
1926
 
PM5B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST61B
Triode
1926
 
PM5X
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST62
Triode
1926
 
PM6
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ST63
Triode
1926
B4
PM256
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
StR100/80
Voltage Stabiliser
1965
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV100/60Z
Voltage Stabiliser
1957
B4
100/60Z
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV100/60Z2
Voltage Stabiliser
1957
 
100/60Z
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV140/60Z
Voltage Stabiliser
 
LK121
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV150/200
Voltage Stabiliser
 
B5
CV3709
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV150/30
Voltage Stabiliser
 
 
0A2 150C2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV280/40
Voltage Stabiliser
1936
 
A2235 AW4 CV110 CV1068 G280/1B VS68
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV280/80
Voltage Stabiliser
1936
B5
CV1069 G280/2B NS1 VS69
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV280/80A
Voltage Stabiliser
 
 
CV3712
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV70/60
Voltage Stabiliser
 
 
CV1895
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
STV75/15
Voltage Stabiliser
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Stentor Two
Triode
1927
B4
215P
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Stentor Four
Triode
1927
B4
410P
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Stentor Six
Triode
1927
 
610P
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU2130
Rectifier HW
1937
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU2150
Rectifier HW
1937
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU2150A
Rectifier HW
 
B4
CV1120 CV1290 NU33 VU120
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU2150P
Rectifier HW
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU25
Rectifier HW
 
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU41
Rectifier HW
 
 
CV1133 V960 VU133
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU42
Rectifier EHT
 
IO
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU45
Rectifier HW
 
 
19G6 CV371
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU6
Rectifier HW
1928
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU61
Rectifier HW
1951
6X2 EY51 R12 U151 U43
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SU750
Rectifier HW
 
 
CV128
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Super-Power
Rectifier FW
 
85-mills
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SW75Pen
Pentode
 
 
ARP75 CV1221 NT38A PT6 PZ1-75
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
SX-226
Triode
 
UX4
 
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