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List of Valves by Designation with Equivalent Types

 

C1
 
Ct8
1
2
3
4
5
6
7
8
-
-
-
-
f
-
-
f
 
Barretter
Stabiliser
Vh
Ah
120
0.2
 
 

C100A
 
Triode
 

C10B
 
B5
1
2
3
4
5
a
-
h
h
k
 
Rectifier HW
Rectifier
Vh
Ah
Va
mAa
40.0
0.2
250
120
 
CV0764 U4020

C1108
1956
B5F
1
2
3
4
5
tc
f
g2
g1
g2
f
a
 
Beam Tetrode
Tetrode
Vh
Ah
Va
5.0
6.5
3,000
 
CV2130 QY3-125 4-125A

C1111
 
Triode
 
C1112
1956
Beam Tetrode
CV2131 4-250A QY4-250

C1134
 
B7A
1
2
3
4
5
6
7
tc
tc
h
g1(2)
g2
k,bp
hct
g1
h
a
a(2)
 
Double Beam Tetrode
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
mAg
Pdriv
Pout
Pdiss
freq
f.max
6.3
1.3
600
250
-60
100
8
1.4
1.5W
48
20W
200
600
 
CV2799 QQV03-20A TT20 TH2J30-34 2B52 6252 55B/200A AX9910 QQE03/20
C1148
 
Pulse Tetrode
 
C1149/1
 
Pulse Tetrode
CV6131

C1150
 
Pulse Tetrode
Tetrode
Vh
Ah
Va
26.0
2.15
17,000
 
CV0427
C1166
 
Pulse Tetrode
CV10404
C1179
 
Pulse Tetrode
 

C143
 
1
2
3
4
5
6
7
f
nc
g2
g1
bp
nc
f
 
Beam Tetrode
Beam Tetrode
Vh
Ah
Va
Vs
Pdiss
10
5
2500
800
125W
 
813 CV0026 QY2-100 TT10

C144
1954
B7A
1
2
3
4
5
6
7
tc
tc
h
g1(2)
g2
k,bp
hct
g1(1)
h
a
a
 
Double Beam Tetrode
Beam Tetrode
Vh
Ah
Va
Vs
Vg
gm
Pdiss
6.3
2.25
750
225
-175
9.00
40W
 
 

C178A/5894
 
B7A
1
2
3
4
5
6
7
tc
tc
h
g1(2)
g2
k,bp
hct
g1
h
a
a(2)
 
Double Beam Tetrode
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
mAg
Pdriv
Pout
Pdiss
freq
f.max
6.3
1.8
600
250
-80
200
18
7
3W
90
40W
275
486
 
TT25 CV2797

C180
 
B7A
1
2
3
4
5
6
7
tc
tc
h
g1(2)
g2
k,bp
hct
g1
h
a
a(2)
 
Double Beam Tetrode
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
mAg
Pdriv
Pout
Pdiss
freq
f.max
6.3
1.6
500
200
-65
72
14
2.6
0.18W
26
15W
200
250
 
832A CV0788 QQV04-15

C1C
 
B4
1
2
3
4
-
-
f
f
 
Barretter
Stabiliser
Vh
Ah
120
0.2
 
CV1400
C30B
 
Triode
4D1 HL1320

C50B
 
B7
1
2
3
4
5
6
7
tc
m
a
g3
h
h
k
g2
g1
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
13.0
0.2
200
200
-2.2
2.5
0.9
2.5M
2.8
 
8D2 SP13C

C50N
 
B7
1
2
3
4
5
6
7
tc
-
a
g3
h
h
k
g2
g1
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
μ
13
0.2
250
125
-1
10.0
3.5
0.6M
1.65
1,000
 
9D2 VP1322

C70D
 
B7
1
2
3
4
5
6
7
-
g1
g2
h
h
k,g3,m
a
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
33
0.2
200
200
-5.5
45
6
35,000
8.0
4W
10%
 
7D6 Pen383
CAG29
 
Photocell
90AG GA50

CAM3
 
1
2
tc
f
f
g1
 
Triode
Triode
Vh
Ah
Va
Pdiss
17.0
70.0
12,000
12kW
 
 

CAV25
 
Photocell
 
CAV35
 
Photocell
VA26T

CBL1
1938
Ct8
1
2
3
4
5
6
7
8
tc
m
h
h
k
a(d1)
a(d2)
-
a
g1
 
Double Diode Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
44.0
0.2
200
200
-8.5
45.0
6.0
35,000
8.0
 
 

CBL31
1938
IO
1
2
3
4
5
6
7
8
tc
m
h
a
a(d2)
a(d1)
g2
h
k
g1
 
Double Diode Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
rk
rl
Pout
D
44.0
0.2
200
200
-8.5
45.0
6.0
35,000
8.0
167
4,500
4.0W
10%
 
CV1463

CCH35
1940
IO
1
2
3
4
5
6
7
8
tc
m
h
a
g2,g4
g1(t),g3
a(t)
h
k
g1
 
Triode Hexode
Hexode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
7
0.2
250
100
-2
2.3
3
1.25M
0.65
 
 

CCS1
 
B8F
1
2
3
4
5
6
7
8
9
tc
g2
k
h
k
ic
k
h
k
g1
a
 
Power Tetrode
Tetrode
Vh
Ah
Va
6.0
2.6
2,000
 
4KC/160M Y-799

CCa
1958
B9A
1
2
3
4
5
6
7
8
9
a(2)
g1(2)
k(2)
h
h
a(1)
g1(1)
k(1)
s
 
Double Triode
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
6.3
0.3
220
-1
15.0
20k
12.5
 
6922 E88CC
CE1
 
Photocell
3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU1 PJ23 R59A WL735
CE11
 
Photocell
GS118TA R59TA
CE11V
 
Photocell
917 CE11V GL917 NU11V R59TAV VS118TA

CE13
 
L4
1
2
3
4
a
f
f
-
 
Photocell
Rectifier
Vh
Ah
mAa
6.0
-
120
 
GS117ATA NU13 R71TA
CE13V
 
Photocell
NU13V R71TAV VS117ATA
CE1V
 
Photocell
CE1V R59AV VS118 WL734
CE2
 
Photocell
4GC 814A GS117A NU2 R71A WL737
CE25
 
Photocell
3530 927 CMG34X GL927 GS47X
CE25V
 
Photocell
CMV33X NU25V R51AV VS44X
CE2V
 
Photocell
R71AV VS117A
CE30
 
Photocell
930 GL930 GS16SO NU30 R61A R64A
CE30V
 
Photocell
925 NU30V R61AV R64AV VS16SO
CE36
 
Photocell
GS44Y NU36
CE36V
 
Photocell
NU36V VS44Y
CE4
 
Photocell
G12 GS116AM R58A
CE4V
 
Photocell
R58AV VS116AM
CE7
 
Photocell
GS126A

CF185
 
Triode
Triode
Vh
Ah
-
0.85,
 
 
CG3E
 
 
CV0164
CK502AX
 
Pentode
CV0385 DL71
CK505AX
 
Pentode
CV0386 CV0443 DF70
CK506
 
Pentode
CV0387 DL72

CL2
 
B7
1
2
3
4
5
6
7
tc
-
-
g2
h
h
k,g3
a
g1
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
24
0.2
200
100
-1.3
40
8
0.7M
6.0
 
PP24

CL202
 
B4
1
2
3
4
a
g1
f
f
 
Triode
Triode
Vh
Ah
1.7
0.06
 
 
CL30/20P4
 
Pentode
 

CL33
1940
IO
1
2
3
4
5
6
7
8
m
h
a
g2
g1
-
h
k
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
Pout
35.0
0.2
200
200
-7.5
45
5
8
3.2W
 
322Pen CV1401

CL4
1938
Ct8
1
2
3
4
5
6
7
8
-
h
h
k
-
-
g2
a
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
33
0.2
200
200
-5.5
45
6
35,000
8.0
4W
10%
 
 

CL6
1938
Ct8
1
2
3
4
5
6
7
8
tc
-
h
h
k
-
-
g2
a
g1
 
Pentode
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
rk
rl
Pout
D
35
0.2
200
100
-9.5
45.0
5.5
19,000
8.0
190
4,500
4.0W
10%
 
 

CM17
 
Photocell
 
CMG17
 
Photocell
3533 GS17

CMG22
 
Photocell
Photocell
Va
140
 
52CG CMG22 CV0248 GS16
CMG25
 
Photocell
GS18
CMG28
 
Photocell
GS49
CMG29
 
Photocell
90CG GS50
CMG32
 
Photocell
3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU1 PJ23 R59A WL735
CMG33
 
Photocell
GS44
CMG33X
 
Photocell
 
CMG34
 
Photocell
GS47
CMG34X
 
Photocell
3530 927 CE25 GL927 GS47X
CMG8
 
Photocell
GS26T
CMV28
 
Photocell
VS49

CMV29
 
B7G
1
2
3
4
5
6
7
k
-
a
a
a
-
k
 
Photocell
Photocell
Va
100
 
90AV VA50

CMV29
 
B7G
1
2
3
4
5
6
7
ic
k
ic
a
ic
k
ic
 
Photocell
Photocell
Vh
Ah
Va
-
-
250
 
90CV VS50
CMV33
 
Photocell
VS44
CMV33X
 
Photocell
CE25V NU25V R51AV VS44X
CMV34
 
Photocell
VS47
CMV34X
 
Photocell
VS47X
CR1
1932
Rectifier HW
 
CR2
1934
Rectifier HW
 
CS36A
 
 
CV0165
CT-08
1925
Triode
 
CT-08+
1926
Triode
 

CT-10
1927
Triode
 
CT-10+
1927
Triode
 

CT-15
1925
B4
1
2
3
4
a
g1
f
f
 
Triode
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
2.0
0.15
120
-
-
18,000
0.42
 
 
CT-15+
1927
Triode
 
CT-199
1925
Triode
 

CT-201A
1925
Triode
 

CT-2132
 
Camera Tube
 
CT-25
1925
Triode
 
CT-25B
1925
Triode
 

CT-25+
1927
B4
1
2
3
4
a
g1
f
f
 
Triode
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
5.0
0.5
-
-21
-
4,000
1.25
 
 
CT-2SSD
1926
Triode
 
CT-4SSD
1926
Triode
 
CT-6SSD
1926
Triode
 

CW10
 
Magnetron
 

CX1157
 
Thyratron
Thyratron
Vh
Ah
Va
mAa
6.3
7.5
20kV
500
 
 
CX1159
 
Thyratron
 

CX1171
 
Thyratron
 

CY1
1939
Ct8
1
2
3
4
5
6
7
8
-
h
h
k
-
-
-
a
 
Rectifier HW
Rectifier
Vh
Ah
Va
mAa
20
0.2
250
75
 
 
CY10
 
Rectifier HW
 

CY1C
1939
Rectifier HW
Rectifier
Vh
Ah
Va
mAa
20.0
0.2
250
75
 
 

CY2
1939
Ct8
1
2
3
4
5
6
7
8
k(2)
h
h
k(1)
a(2)
-
-
a(1)
 
Rectifier FW
Rectifier
Vh
Ah
Va
mAa
30
0.2
250
120
 
 
CY30/U301
 
Rectifier HW
 

CY31
1939
IO
1
2
3
4
5
6
7
8
ic
h
-
-
a
-
h
k
 
Rectifier HW
Rectifier
Vh
Ah
Va
mAa
20
0.2
250
75
 
CV1402 U201
CY32
1939
Rectifier 2 x HW
 

Catkin
1931
Tetrode
 
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