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Valve Types and Equivalents
    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR1
Cathode-Ray Tube
 
CV1379
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR2X
Cathode-Ray Tube
 
 
3220K CV959
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR3
Cathode-Ray Tube
 
 
CV1386
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR4
Cathode-Ray Tube
 
 
CV1387
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR5
Cathode-Ray Tube
 
 
CV1388
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR6
Cathode-Ray Tube
 
 
CV1389
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR8
Cathode-Ray Tube
 
 
CV1381
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR10
Cathode-Ray Tube
 
B12B
23D CV1382
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR11
Cathode-Ray Tube
 
 
CV1383
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR12
Cathode-Ray Tube
 
 
CV1384
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR13
Cathode-Ray Tube
 
 
CV1385
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR15
Cathode-Ray Tube
 
 
CV1391+D7802
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ACR21
Cathode-Ray Tube
 
 
CV1397
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AD1
Thermal Delay Switch
 
 
DLS10
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR10
Double Diode
 
 
CV1308 HD24 L21/DD TDD2A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR11
Triode
 
 
4019B CV1309 CV1655 POVT75
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR12
Triode
 
 
4020A CV1310
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR13
Triode
 
 
4022AR B406 CV1311 CV1664 POVT88
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR14
Triode
 
 
220RC CV1312
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR15
Triode
 
 
220LF CV1313
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR16
Double Triode
 
 
220B CV1032 VR32
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR17
Triode
 
B5
CV1037 MH4 NR31 VR37
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR20
Triode
 
 
4021B CV1316 CV1663 POVT87
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR21
Double Diode Triode
1938
IO
CV1055 EBC33 NR48 OM4 VR55
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR4
Triode
 
 
CV1303 HL210 PM1HF
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR5
Triode
 
 
CV1166 NR42 VR22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR6
Triode
 
B4
CV1304 LP2 NR42 VR22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR62
Rectifier MV
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR7
Triode
 
 
4D1 CV1000 CV1109 HL1320 NR55 VR109
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR8
Double Diode
1938
MO
CV1306 HL23DD
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AR9
Triode
 
 
210LF CV1021 CV1307 L21 L2 PM1LF VR21
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARD2
Diode
 
 
CV1078 D1 VR78
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARD4
Diode
 
 
CV1302 D42
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARDD1
Double Diode
1936
B5
10D1 2D13C CV1300 ZD
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARDD3
Double Diode
 
 
6H6G CV1301 D63
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARDD5
Double Diode
 
IO
CV1054 EB34 OM3 VR54
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARH1
Heptode
 
 
6L7 CV1280 NR67 X64
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP1
Pentode
 
B5
CV1118 NR39 POVT136 PT2 VR118
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP10
Pentode
 
 
APP4G CV1328 CV1329 PenA4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP11
Pentode
 
 
CV1329 TSP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP12
Pentode
1938
MO
CV1331 VP23
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP12T
Pentode
1938
 
CV2841
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP13
Pentode
 
B7
210VPT CV1083 CV1332 NR41 VP21 VP210 VR83
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP14
Pentode
1938
 
220IPT CV1333 Z22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP15
Pentode
 
 
CV1195 KTW63 NR86
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP16
Pentode
 
 
6J7 CV1074 KTZ63 NR83 VT74
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP17
Pentode
 
 
6F6G CV1186 KT63 NR85
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP18
Pentode
 
B5
CV1334 KT24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP19
Pentode
 
 
CV1335 CV1574 SP41 VR65A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP2
Pentode
1934
 
CV1330 TSP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP20
Pentode
 
 
CV1336 NR79 SP42
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP21
Pentode
1939
 
CV1192 NR79 Z62
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP22
Pentode
 
 
116Pen CV1337
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP23
Pentode
 
 
CV1124 MS/Pen NR70 VR124
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP24
Pentode
 
 
220VPT CV1338
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP25
Pentode
 
 
4066A 7A3 CV1181 KT41 NR59 PenA4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP26
Beam Tetrode
 
B7
CV1340 CV1577 KT44 VT75B
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP3
Pentode
1934
B7
12VPA 9D2 CV1106 CV1321 VR106
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP31
Pentode
1939
 
EF39
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP33
Pentode
 
 
CV1341 MSP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP34
Pentode
1939
IO
CV1053 EF39 OM6 VR53
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP35
Pentode
1938
B9G
63SPT CV1091 CV1578 EF50 VR91 Z90
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP36
Pentode
1941
MO
CV1065 SP61 VR65
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP37
Double Pentode
1939
MO
CV1342 QP25
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP38
Pentode
 
IO
CV1343 POVT149
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP4
Pentode
1934
 
CV1322 SP210
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP5
Pentode
 
 
CV1323 VP2
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP6
Pentode
1933
 
CV1324 SP4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP7
Pentode
 
 
42MPT CV1325
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP75
Pentode
 
 
CV1221 NT38A PT6 PZ1-75 SW75Pen
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP8
Pentode
 
 
AC4Pen CV1326
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP9
Pentode
 
 
7D8 CV1327 Pen1340
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARP9A
Pentode
 
 
7D8S CV1328
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARS6
Pentode
1928
CV1317 S625
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARS7
Pentode
 
 
CV1318 VS24
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARS8
Rectifier HW
 
 
CV1319
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARTH1
Triode Hexode
1938
 
6K8G CV1944
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARTH2
Triode Hexode
1938
IO
CV1347 ECH35
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARTP1
Triode Pentode
1934
 
CV1344 TP22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ARTP2
Triode Pentode
1938
MO
CV1345 TP25
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT15
Triode
1934
 
CV2845 LS5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT20
Triode
 
 
CV1361 MZ02-50
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT25
Triode
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT35
Triode
 
 
CV1025 DET25 VT25
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT37
Triode
 
 
ACT36
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT40+A186
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT40X
Triode
 
B4
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT50
Triode
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AT75
Triode
 
 
ACT6 CV1222 CV2825 NT39
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP10
Pentode
 
 
1062A 4061A CV1369
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP100
Pentode
 
 
4069A CV1372
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP600
Pentode
 
 
CV1373 PY3-600
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP35
Pentode
 
B7
CV1370 NT74 PV1-35
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP4
Pentode
1940
MO
CV1366 V248A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP5
Pentode
 
B7
CV1367 V245
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP7
Pentode
 
B7
CV1368 V266
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATP75
Pentode
 
 
CV1371 NT38 PT6 PZ1/75
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATS25
Beam Tetrode
 
UX5
807 CV1374 VT60A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATS25A
Beam Tetrode
 
 
5B/250A 807 CV1364 VT60A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATS25N
Beam Tetrode
 
UX5
5B/250A 807 CV1364 VT60A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATS250
Pentode
 
 
CV1031 VT31
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
ATS70
Beam Tetrode
 
L4
4282B CV1365
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU1
Rectifier FW
 
B4
45IU CV1264 FW4-500 NU12 U18/20
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU12
Rectifier HW
 
 
CV2853 NU13A RZ1-250 U15
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU13
Rectifier FW
 
 
5Z4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU2
Rectifier HW
 
 
CV1349 RG5-500
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU3-E27
Rectifier HW
 
U3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU3
Rectifier FW
 
 
7403 CV1064 NU3 VU64
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU3A
Rectifier FW
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU4
Rectifier HW
 
 
CV1064 DW4-500 NU3 U12/14 VU64
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU5
Rectifier HW
 
B4
19G/12 CV1111 R11 U27 V1907 VU111
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU7
Rectifier MV
 
 
CV1355 ESU300
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU6
Rectifier HW
 
 
CV1072 GU50 NU16 RG1-240A VU72
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AU8
Rectifier HW
 
MO
CV1356 U22
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AW2
Voltage Stabiliser
 
B4
7475 CV1070 VS70
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AW3
Voltage Stabiliser
 
B4
CV1110 S130 VS110
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AW4
Voltage Stabiliser
1936
 
A2235 CV110 CV1068 STV280/40 VS68
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AW5
Tuning Indicator
 
 
CV1359 ME41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
AW6
Tuning Indicator
 
 
CV1077 EM31 VI77
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