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Valve Types and Equivalents
    
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Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N
Triode
1915
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1001
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1002
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1004
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1005M
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1013
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1017M
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N.1018M
Travelling Wave Tube
 
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N1034S
Backward Wave Oscillator
1955
B7D
CV6023
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N108
Beam Tetrode
1952
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N118
Beam Tetrode
1957
B8A
10P13 N145
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N119
Pentode
 
 
10P18 45B5 UL84
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N14
Pentode
1940
IO
1C5G CV1803 DL35
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N142
Pentode
1950
 
451PT 45A5 UL41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N144
Pentode
 
B7G
16A 6AM5 6P17 7D9 EL91 N77
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N145
Pentode
1947
 
10P13 N118
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N147
Pentode
1938
IO
EL33
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N148
Pentode
1950
B8B
7C5
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N15
Pentode
1940
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N150
Pentode
1948
B8A
6CK5 EL41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N152
Pentode
1951
B9A
21A6 N359 PL81
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N153
Pentode
1951
B9A
N309 PL83
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N154
Pentode
1951
 
16A5 30P16 PL82
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N155
Pentode
1957
B9A
6BN5 EL85
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N16
Pentode
1946
IO
3Q5GT CV819 DL33
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N17
Pentode
1949
B7G
1P10 3S4 CV820 DL92
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N18
Pentode
1950
B7G
3Q4 CV818 DL95
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N19
Pentode
1953
 
1P11 3V4 DL94
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N25
Pentode
1953
B7G
1P1 3C4 DL96
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N30
Pentode
1934
B7
7D5 PP13A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N308
Pentode
1956
IO
25GF6 30P4
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N309
Pentode
1953
B9A
N153 PL83
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N31
 
1935
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N329
Pentode
 
B9A
16A5 N154 PL82
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N339
Beam Tetrode
1952
B9A
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N359
Pentode
 
B9A
21A6 N152 PL81
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N369
Pentode
 
 
12FB5 30P12 PL801
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N37
Pentode
 
B7G
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N379
Pentode
 
 
15CW5 30P18 PL84
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N389
Pentode
 
 
30P19 PL302
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N40
Pentode
1935
 
7A3
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N41
Pentode
1935
 
7A3 AC2/Pen CV1181 KT41
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N42
Pentode
1935
B7
KT42
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N43
Pentode
1936
B7
CV1675 POVT107 VT107
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N47
Pentode
 
 
6AG6G EL33 KT61
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N63
Beam Tetrode
1937
 
KT63
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N66
Beam Tetrode
1937
 
KT66
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N709
Pentode
1953
B9A
6BQ5 6P15 CV2975 EL84
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N727
Pentode
1954
 
6AQ5 BPM08 CV1862 EL90
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N77
Pentode
1953
B7G
6AM5 7D9 CV136 EL91 V887
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
N78
Pentode
1952
B7G
6BJ5 CV3711 CV4062
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NE1000
Neon Power Indicator
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NE18
Neon Power Indicator
 
CV360 VX3039
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
Negatron
Negatron
1919
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NF2
Pentode
1935
Ct8
CF7
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NHP1
Strobotron
1950
 
CV310
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NIXIE
Counter/Indicator
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
No.12
 
 
B7
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NSP1
Strobotron
 
UX4
631-P1 CV220
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NSP2
Strobotron
 
IO
CV2296
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NSPT
Strobotron
 
 
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NT2
Voltage Stabiliser
1951
 
CC3L CV2266
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU.1
Photocell
 
 
3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU1 PJ23 R59A WL735
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU11V
Photocell
 
 
917 CE11V GL917 NU11V R59TAV VS118TA
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU13 
Photocell
 
 
CE13 GS117ATA R71TA
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU13V
Photocell
 
 
CE13V R71TAV VS117ATA
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU2
Photocell
 
 
4GC 814A CE2 GS117A R71A WL737
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU25V
Photocell
 
 
CE25V CMV33X R51AV VS44X
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU30
Photocell
 
 
930 CE30 GL930 GS16SO R61A R64A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU30V
Photocell
 
 
925 CE30V R61AV R64AV VS16SO
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU31V
Photocell
 
 
919 R82AV VS118T
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU36
Photocell
 
 
CE36 GS44Y
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU36V
Photocell
 
 
CE36V VS44Y
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
NU4
Photocell
 
 
GS116A
Type
Structure
Date
Base
PDF
Sensibly equivalent to:
No.1
Barretter
 
 
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