▼ Menu

Radio Valve Data: 1915-1960

Keith R Thrower OBE, The Valve Museum, April, 2022.
    
Extras ▼

PDF

 

Help information: Abbreviations - Explanations - Notes.

Post-1925 amplifying valves, frequency changers
and signal diodes

Type
Description
Filament
Anode
Auxillary Grid
Grid
ra
gm/go
RL
Po
Rk
Base (1)Pin-out details for non-exhibits can be found with the base details.
Year
 
 
Volts
Amps
Volts
mA
Volts
mA
-V
kΩ
mA/V
kΩ
Watts
Ω
Type
Ref
 

 Tungsram

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
1AB6
See Mullard DK96
-
-
1AC6
See Mullard DK92
-
-
1AH5
See Mullard DAF96
-
-
1AJ4
See Mullard DF96
-
-
1C5GT
See US
-
-
1L5
See Mullard DF92
-
-
1N5GT
See US
-
-
1R5
See US
-
-
1S4
See US
1S5
See US
-
-
1T5
See US
-
-
2A5
See US
-
-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
2A6
See US
-
-
2A7
Heptode FC
2.5
0.80
mix250
osc135
3.5
2.3
100
 
2.2
 
3.0
 
360.0
 
0.52⅄
 
USM7+tc
1
3A4
See Mullard DL93
-
-
3C4
See Mullard DL96
-
-
3Q4
See US
-
-
3Q5GT
See US
-
-
3S4
See US
-
-
3V4
See US
-
-
6A8
See US
-
-
6AB8
See Mullard ECL80
-
-
6AC7
See US
-
-
6AK5
See US
-
-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6AK8
See US
-
-
6AL5
See US
-
-
6AM5
See US
-
-
6AM6/EF91
See Mullard EF91
-
-
6AQ5
See US
-
-
6AT6
See US
-
-
6AU6
See US
-
-
6AV6
See US
-
-
6B7
See US
-
-
6B8
See US
-
-
6BA6
See US
-
-
6BE6
See Mullard EK90
-
-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6BQ5
See US
-
-
6BX6
RF pentode
6.3
0.30
170
10.0
170
2.5
2.0
400.0
7.40
B9A
10
6BY7
VM RF pentode
6.3
0.30
250
10.0
100
2.5
2.0
500.0
6.00
B9A
10
6C4
See US
-
-
6C5
See US
-
-
6C6
See US
-
-
6CJ5
VM RF pentode
6.3
0.20
250
6.0
100
1.7
2.5
1MΩ
2.2
B8A
7
6CJ6
Line t/b pentode
6.3
1.05
250
250
B9A
17
6CK5
Output pentode
6CQ6
VM RF pentode
6.3
0.20
250
8.0
150
2.0
0.65
500.0
2.50
B7
21
6CT7
Diode & VM pentode
6.3
0.20
250
5.0
85
1.5
2.0
1.4MΩ
2.0
B8A
12
6CU7
See Mullard ECH42
-
-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6CV7
See US
-
-
6D6
See US
-
-
6E8
Triode hexode FC
6.3
0.3
h250
t150
2.3
 
100
 
2.0
0
1.25MΩ
 
0.65⅄
 
400
 
IO
3
6EH7
VM RF pentode
6.3
0.30
200
12.0
90
4.5
2.0
500.0
13.00
B9A
10
6F6
See US
-
-
6H6
See US
-
-
6J5
See US
-
-
6J6
See US
-
-
6J7
See US
-
-
6K8
See US
-
-
6L6
See US
-
-
6M6
See US
1O
36
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6N8
Double diode VM RF pentode
6.3
0.30
250
5.0
85
1.75
2.0
1.4MΩ
2.2
B9A
12
6Q7
See US
-
-
6SA7
See US
-
-
6SJ7
See US
-
-
6SK7
See US
-
-
6SL7GT
See US
-
-
6SN7
See US
-
-
6SQ7
See US
-
-
6TH8G
Triode heptode FC
6.3
0.60
h300
t150
5.5
4.0
80
 
6.0
 
1.5
 
2MΩ
7.0
1.0⅄
1.20
IO
3
1937
6U8
See US
-
-
6V6
See US
-
-
7AN7
See Mullard PCC84
7.2
0.30
90
15.0
1.2
3.0
12.0
-
-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
7FC7
Double triode
B9A
28
7HG8
See Mullard PCF86
-
-
9U8
See Mullard PCF82
-
-
12A6
See Brimar
-
-
12A8
See US
-
-
12AC5
VM RF pentode
12.6
0.10
170
6.0
100
1.75
2.5
1MΩ
2.2
B8A
7
12AT6
See US
-
-
12AT7
See US
-
-
12AU7
See US
-
-
12AV7
See US
-
-
12AX7
See US
-
-
12BA6
RF pentode
12.6
0.15
250
11.0
100
4.2
1.0
1MΩ
4.4
B7G
16
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
12BE8
See Brimar
-
-
12J5
See US
-
-
12J7
See US
-
-
12K7
See US
-
-
12K8
See US
-
-
12S7
Diode & VM RF pentode
12.6
0.10
250
5.0
85
1.5
2.0
1MΩ
2.0
B8A
12
12SA7
See US
-
-
12SJ7
See US
-
-
12SK7
See US
-
-
12SN7
See US
-
-
12SQ7
See US
-
-
14K7
Triode hexode FC
14.0
0.10
h200
t100
3.0
3.1
85
 
3.0
 
2.0
 
1MΩ
0.75 ⅄
B8A
3
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
14L7
Double diode triode
14.0
0.10
170
1.5
-
-
1.6
42.0
1.65
B8A
9
15A6
Output pentode
B9A
14
16A5
See Mullard PL82
-
-
16A8
See Mullard PCL82
-
-
21A6
See Mullard PL81
-
-
25A6
See US
-
-
25L6
See US
-
-
25SN7
See US
-
-
35L6
See US
-
-
42
See US
-
-
45A5
See US
-
-
50C5
See US
-
-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
50L6
See US
-
-
75
See US
-
-
77
See US
-
-
78
See US
-
-
807
See US
-
-
AF2
VM RF pentode
4.0
1.10
200
4.25
100
1.8
2.0
1.4MΩ
2.50
330
B5+tc
2
AG495
AF or output triode
4.0
1.00
200
6.0
-
-
6.0
6.25
4.00
15.0
0.2
1000
B5
1
1931
AG4100
Detector or AF triode
4.0
1.00
150
5.0
-
-
3.0
8.3
2.00
B5
1
1930
AL495
Output triode
4.0
1.00
250
20.0
-
-
12.0
2.5
4.00
600
B5
1
1931
AP495
Output triode
4.0
1.00
250
20.0
-
-
18.0
2.5
4.00
5.0
0.9
900
B5
1
1931
APP4A
Output pentode
4.0
1.20
250
35.0
250
6.0
16.5
2.59
7.0
30
400
B5+st
B7
16
24
1937
1936
APP4As
Output pentode
4.0
1.20
250
35.0
250
6.0
16.5
2.59
7.0
30
400
Ct8+tc
4
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
APP4B
APP4Bs
Output pentode
4.0
1.95
250
36.0
250
4.0
5.0
10.00
7.0
3.6
140
B7
Ct8
24
12
1936
1939
APP4C
Output pentode
4.0
1.95
250
36.0
250
4.0
6.0
10.00
7.0
3.6
140
B7
25
1936
APP4D
Output pentode
4.0
2.00
250
72.0
250
8.0
16.5
7.00
3.5
7.5
200
B7
25
1936
APP4E
Output pentode
(Class AB1 Push-pull)
4.0
2.10
250
375
72.0
62.0
250
275
8.0
9.0
13.5
 
23.0
 
8.50
 
3.5
6.5
8.8
28.5
175
165
B7
25
1937
1939
APP4E*
Output pentode (Reduced screen current version)
4.0
2.10
250
42.0
175
3.9
9.0
4.4
5.0
200
B7
25
1938
APP4G (SW)
Output pentode
4.0
2.00
250
36.0
250
4.0
6.0
50.0
10.0
7.0
3.5
150
B7+tc
5
1936
APP4G*
Output pentode
4.0
2.00
250
36.0
250
4.0
6.0
7.0
3.6
B7+tc
15
1939
APP495
Output pentode
4.0*
1.0
300
25.0
250
4.0
23.0
40.0
2.00
800
B5
22
APP4100
Output pentode
4.0
1.00
300
30.0
250
7.0
40.0
7.5
3.0
1000
B5
Q
1932
APP4120
Output pentode
4.0
1.20
250
32.0
250
8.0
18.0
7.5
3.4
500
B5
Q
1933
APP4130
Output pentode
4.0
1.35
250
36.0
250
7.0
22.0
7.5
2.5
600
B5
Q
1934
AR495
High-μ triode
4.0
1.00
200
4.5
-
-
1.5
17.0
5.00
B5
1
1931
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
AR4100
General-purpose triode
4.0
1.00
200
3.0
-
-
3.0
17.0
2.00
B5
1
1930
AR4101
Medium-μ triode
4.0
1.00
200
2.5
-
-
2.0
13.0
3.00
B5
1
1931
AR4120
High-μ triode
4.0
1.00
200
0.2
-
-
1.6
45.0
2.20
B5
1
1931
AS494
RF tetrode
4.0
1.00
200
1.5
100
667.0
1.50
B5+tc
2
1931
AS495
RF tetrode
4.0
1.00
200
1.0
100
0.6
2.0
480.0
3.40
B5+tc
2
1931
AS4100
RF tetrode
4.0
1.00
200
4.0
100
1.2
6.0
180.0
1.42
B5+tc
2
1930
AS4104
VM RF tetrode
4.0
1.00
200
6.0
100
0.8
2.0
300.0
1.00
B5+tc
2
1932
AS4105
VM RF tetrode
4.0
1.00
200
4.0
100
0.9
2/30
210.0
1.20
B5+tc
2
1932
AS4120
RF tetrode
4.0
1.00
200
3.0
100
0.8
2.0
330.0
3.00
500
B5+tc
2
1933
AS4125
VM RF tetrode
4.0
1.20
200
3.0
100
0.8
1.5/40
250.0
3.00
150
B5
2
1933
CB215
CB215s
Class B double triode
2.0*
0.22
135
2/12
-
-
0
2.00
10.0
1.7
B7
Ct8
10
27
1936
1938
CB220
Class B double triode
2.0*
0.25
150
1.5/13
-
-
3.35
2.50
10.0
2.0
B7
10
1933
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
CBL1
CBL31
Double diode output pentode
44.0
0.20
200
45.0
200
6.0
8.5
35.0
8.00
4.5
4.0
167
Ct8+tc
IO+tc
13
15
1940
CBL1/31
Double diode output pentode
39.0
0.20
200
45.0
200
6.0
8.5
8.00
Ct8+tc
13
CCH35
= ECH35
7.0
0.20
IO+tc
3
CL4
Output pentode
33.0
0.20
200
45.0
200
6.0
8.5
35.0
8.00
4.5
4.0
167
Ct8+tc
4
CL6
Output pentode
35.0
0.20
200
45.0
100
5.5
9.5
19.0
8.00
4.5
4.0
190
Ct8+tc
4
1938
CL33
Output pentode
33.0
0.20
200
45.0
200
6.0
8.5
35.0
8.00
4.5
4.0
167
IO
36
1940s
D418
Single diode, low cap.
4.0
0.18
100
1.5
-
-
B4+tc
10
1934
DAC1
Single diode triode
1.4*
0.05
90
0.14
-
-
0
240.0
0.275
Ct8+tc
32
1940
DD4
DD4s
Double diode
4.0
0.65
50
0.8
-
-
B5
Ct5
3
1
1935
1939
DD4D
Double diode
4.0
0.40
100
4.0
-
-
-
-
-
B7
21
1938
DD6
Double diode
6.3
0.20
150
0.60
-
-
-
-
-
B5
3
1936
DD6ds
Double diode
6.3
0.20
200
0.8
-
-
-
-
-
Ct8
10
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
DD6G
Double diode
6.3
0.30
165
10.0
-
-
-
B7G
18
DD13
DD13s
Double diode
13.0
0.20
200
0.8
-
-
-
-
-
B5
Ct5
3
1
1935
1937
DD465
Double diode
4.0
0.65
100
1.5
-
-
-
-
-
B5+tc
4
1934
DD818
Double diode
8.0
0.18
100
1.5
-
-
-
-
-
B5+tc
4
1934
DDPP4B
DDPP4M
Double diode output pentode
4.0
2.00
250
36.0
250
4.0
6.0
10.00
7.0
3.6
150
B7+tc
B7+tc
9
22
1937
1938
DDPP6B
DDPP6Bs
Double diode output pentode
6.3
1.40
250
36.0
250
4.0
6.0
10.00
7.0
3.5
150
B7+tc
Ct8+tc
9
13
1937
DDPP39
DDPP39M
DDPP39s
Double diode output pentode
39.0
0.20
200
45.0
200
6.0
8.0
8.5
4.0
3.2
170
B7+tc
B7+tc
Ct8+tc
9
22
13
1937
1938
 
DDT2, DDT2A
Double diode triode
2.0*
0.10
135
1.0
-
-
1.5
21.0
1.40
B5+tc
5
1935
DDT2B
DDT2Bs
Double diode triode
2.0*
0.10
135
2.5
-
-
4.5
16.0
1.00
B5+tc
Ct8+tc
5
28
1937
1938
DDT4
DDT4s
Double diode triode
4.0
0.65
250
4.0
-
-
5.0
11.0
3.60
1000
B7+tc
Ct8+tc
7
7
1936
1939
DDT6s
Double diode triode
6.3
0.20
250
5.0
-
-
5.5
15.0
2.50
Ct8+tc
7
1936
DDT13
DDt13s
Double diode triode
13.0
0.20
200
4.0
-
-
5.0
11.0
3.60
1000
B7+tc
Ct8+tc
7
7
1936
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
DG210
 DG210/0
Bi-grid FC
2.0*
0.12
100
1.0
5.0
1.00
B4+st
B5
28
11
1932
1933
DG407
Bi-grid FC
4.0*
0.08
20
1.0
20
3.0
5.0
1.00
B4+st
28
1932
DG407/0
Bi-grid FC
4.0*
0.08
100
4.0
B4+st
B5
28
11
1932
DG2018
Bi-grid FC
20.0
0.18
100
0
5.0
1.00
B5+st
19
1933
DG4100
DG4101
Bi-grid FC
4.0
1.00
100
3.00
5.0
1.00
B5+tc
7
1932
DS2018
Single diode RF tetrode
20.0
0.18
200
4.0
90
1.0
3.5
2.5M
0.70
C7
8
1933
DS4100
Single diode RF tetrode
4.0
1.00
200
4.0
90
1.0
3.5
2.5M
0.70
C7
8
1933
EAB1
Triple diode
6.3
0.20
200
0.8
-
Ct8
17
1938
EB4
Double diode
6.3
0.20
100
0.8
-
-
Ct8
10
1938
EB11
Double diode
6.3
0.20
200
0.8
-
-
Y8A
1
1940s
EB34
Double diode
6.3
0.20
140
0.8
-
-
IO
53
1940s
EBC3
EBC33
Double diode triode
6.3
0.20
250
5.0
-
-
5.5
15.0
2.00
1100
Ct8+tc
IO+tc
7
29
1938
1940s
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
EBC11
Double diode triode
6.3
0.20
250
5.0
-
-
8.0
11.5
2.20
1600
Y8 A
2
1940s
EBF2
Double diode and VM RF pentode
6.3
0.20
250
5.0
250
2.0
2.0
1.5M
1.80
290
Ct8+tc
13
1938
EBF11
Double diode and VM RF pentode
6.3
0.20
250
5.0
100
1.8
2.0
1.5M
1.80
7.0
3.6
200
Y8A
3
1940
EBL1
EBL31
Double diode output pentode
6.3
1.40
250
36.0
250
5.0
6.0
50.0
9.50
7.0
4.4
150
Ct8+tc
IO
13
15
1938
1940s
ECH2
Triode heptode FC
6.3
0.95
h250
t100
3.25
5.0
100
 
6.0
 
2.5
 
1.5M
3.5
0.75⅄
6.0
Ct8
1
1938
ECH3
ECH33
Triode hexode FC
6.3
0.20
h250
t150
2.3
3.3
100
 
3.0
 
2.0
 
1M
 
0.65⅄
 
Ct8
IO+tc
1
3
1940
1940s
ECH11
Triode hexode FC
6.3
0.20
h250
t250
2.3
3.3
100
 
3.0
 
2/21
 
1.5M
 
0.56⅄
 
230
Y8A
4
1939
ECH35
Triode hexode FC
6.3
0.30
h250
t150
2.3
 
100
 
3.0
 
2.0
 
1.25M
 
0.65⅄
 
IO+tc
3
1940s
ECL11
Triode & output tetrode
6.3
1.10
t200
p250
2.0
36.0
 
250
 
4.0
2.5
6.0
35.0
55.0
2.00
9.00
7.0
3.75
Y8A
5
1940s
EF5
VM RF pentode
6.3
0.20
250
8.0
100
2.6
3.0
1.2M
1.70
285
Ct8+tc
15
1938
EF6
RF or AF pentode
6.3
0.20
250
3.0
100
1.1
2.0
1.75M
2.00
525
Ct8+tc
15
1938
EF8
Hexode RF amplifier
6.3
0.20
250
8.0
250
0.25
2.5
360.0
1.80
305
Ct8+tc
11
1938
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
EF9
VM pentode RF or AF amplifier
6.3
0.20
250
6.0
250
1.7
2.5
1.25M
2.20
325
Ct8+tc
15
1938
EF11
VM RF pentode
6.3
0.20
250
6.0
100
2.0
2.0
2M
2.20
250
Y8A
7
1939
EF12
RF pentode
6.3
0.20
250
6.0
100
1.0
2.0
1.5M
2.10
500
Y8A
7
1939
EF13
VM RF pentode
6.3
0.20
250
4.5
100
0.6
2.0
500.0
2.30
400
Y8A
8
1940s
EF14
RF pentode
6.3
0.47
200
12.0
250
7.0
4.5
150.0
300
Y8A
9
1940s
EF39
VM RF pentode
6.3
0.20
250
6.0
250
1.7
2.5
1.5M
2.20
IO+tc
8
1940s
EFM1
VM RF pentode and tuning indicator
6.3
0.20
250
1.3
100
0.55
2.0
800
Ct8
18
1938
EFM11
VM RF pentode and tuning indicator
6.3
0.20
250
1.0
250
0.63
1.5
Y8A
10
1940s
EH2
Heptode - (RF amplifier)
(frequency changer)
6.3
0.20
250
250
4.2
1.85
100
100
2.8
3.8
3.0
3.0
1.1M
2M
1.40
0.40⅄
430
500
Ct8+tc
16
1938
EK2
Octode FC
6.3
0.20
mix250
osc200
1.1
2.5
60
 
1.0
 
2/25
 
2M
 
0.55⅄
 
Ct8+tc
2
1938
EK3
Beam octode FC
6.3
0.65
mix250
osc100
2.5
6.0
100
 
5.5
 
2.5/38
 
2M
 
0.65⅄
4.5
Ct8+tc
2
1938
EL2
Output pentode
6.3
0.20
250
32.0
250
5.0
18.0
2.80
8.0
3.6
480
Ct8+tc
33
1938
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
EL3
EL33
Output pentode
6.3
1.20
250
36.0
275
4.5
7.0
9.50
7.0
4.5
175
Ct8
IO
12
36
1938
1940s
EL5
Output pentode
6.3
1.35
250
72.0
275
7.0
14.0
8.50
3.5
8.8
175
Ct8
12
1938
EL6
EL36
Output pentode
6.3
1.40
250
72.0
250
8.5
7.0
20.0
15.00
3.5
8.2
85
Ct8
IO
12
36
1938
1940s
EL11
Output pentode
6.3
0.90
250
36.0
250
4.0
6.0
50.0
9.00
7.0
4.5
150
Y8A
11
1940s
EL12
Output pentode
6.3
1.20
250
72.0
250
8.0
7.0
20.0
14.50
3.5
8.0
90
Y8A
11
1940s
ELL1
Double output pentode
6.3
0.45
250
15/16.5
250
2.5
21.5
11.0
1.80
16.0
5.4
600
Ct8
19
1938
G115
General-purpose triode
1.0*
0.50
150
3.5
-
-
8.5
20.0
0.50
B4
1
G150
General-purpose triode
1.0*
0.50
150
4.0
-
-
1.5
20.0
0.50
B4
1
1930
G405
RF neutralized triode
4.0*
0.065
150
3.5
-
-
3.0
20.0
0.50
B4
1
1930
G407
Detector triode
4.0*
0.07
150
5.0
-
-
8.0
5.0
1.80
B4
1
1930
G409
Detector or AF triode
4.0*
0.09
150
3.5
-
-
6.0
7.0
2.40
B4
1
1930
G410
Low-impedance triode
4.0*
0.075
150
4.0
-
-
4.5
7.0
2.00
B4
1
1930
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
G607
AF triode
6.0*
0.07
-
-
B4
1
1930
G2018
AF triode
20.0
0.18
200
10.0
-
-
5.0
7.0
3.50
B5
1
1932
H210
RF or detector triode
2.0*
0.10
200
2.0
-
-
3.0
25.0
1.00
B4
1
1930
H407
General-purpose triode
4.0*
0.07
200
1.5
-
-
3.0
25.0
1.40
B4
1
1930
HL2
HL2s
Detector or oscillator triode
2.0*
0.13
135
2.2
-
-
1.5
21.0
1.50
B4
Ct8
1
42
1938
HL4
General-purpose triode
4.0
1.00
200
4.0
-
-
3.0
11.5
3.50
B5
1
1935
HL4+
Low-microphony triode
4.0
0.65
250
5.0
-
-
4.5
11.0
3.50
1000
B5
1
1936
HL4g
HL4gs
Low-capacity triode
4.0
0.65
250
5.0
-
-
4.5
11.0
3.50
1000
B7+tc
Ct8+tc
23
3
1936
1939
HL13
HL13s
General-purpose triode
13.0
0.20
250
6.0
-
-
4.0
12.0
3.50
1000
B7+tc
Ct8+tc
23
3
1935
1937
HL406
General-purpose triode
4.0*
0.075
100
2.0
-
-
0
13.0
1.05
B4
1
HP13
HP13s
VM RF pentode
(Short grid base)
13.0
0.20
200
8.0
100
2.9
1/10
1.1M
3.50
300
B7+tc
Ct8+tc
6
15
1935
1937
HP210
HP210c
Low-microphony RF pentode
2.0*
0.12
150
1.9
150
0.7
1.5
2.5M
1.90
B4+tc
B7+tc
2
4
1934
1934
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
HP210nc
See HP210
-
-
1937
HP211
VM RF pentode
2.0*
0.12
150
2.6
150
0.6
0.9/7
2M
1.70
B4+tt
B7+tc
2
4
1934
1934
HP211c
See HP211
-
-
1937
HP1018
RF pentode
10.0
0.18
250
2.3
150
0.60
1.5M
1.25
C7+tc
3
1934
HP1118
VM RF pentode
10.0
0.18
250
10.5
150
3.0
3/52
1M
1.65
C7+tc
3
1934
HP2018
RF pentode
20.0
0.18
200
3.0
100
1.2
2M
3.50
B5+tc
B7+tc
2
5
1933
1933
HP2118
VM RF pentode
20.0
0.18
200
5.0
100
1.1
2/35
1M
3.50
B+tc5
B7+tc
2
5
1933
1933
HP4100
RF pentode
4.0
1.00
200
3.5
100
0.6
2.0
2M
3.50
B5+tc
B7+tc
2
5
1933
1933
HP4101
RF pentode
4.0
1.00
200
3.5
100
0.6
2.0
2M
3.50
600
B5
B7+tc
2
5
1935
1935
HP4101c
RF pentode
4.0
1.00
200
3.5
100
0.6
2.0
2M
2.80
B5+tc
B7+tc
2
5
1938
HP4105
VM RF pentode
4.0
1.00
200
5.0
100
1.1
2/30
1M
3.50
B5+tc
B7+tc
2
5
1933
1933
HP4106
VM RF pentode
4.0
1.00
200
5.0
100
1.25
2/35
1.2M
3.50
150
B5+tc
B7+tc
2
E
1935
1935
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
HP4106c
= HP4106
-
-
1939
HP4115
VM RF pentode
(Short grid base)
4.0
1.10
200
4.3
100
1.5
1.5/12
1.4M
3.20
300
B5+tc
B7+tc
2
5
1935
1935
HP4115c
VM RF pentode
4.0
1.00
250
4.5
100
1.5
2.0
1.4M
3.20
B5+tc
B7+tc
2
5
1939
1939
HR2
HR2s
General-purpose triode
2.0*
0.065
135
0.6
-
-
1.5
40.0
0.60
B4
Ct8
1
24
1936
1938
HR210
General-purpose triode
2.0*
0.10
200
1.0
-
-
1.5
23.0
1.30
B4
1
1933
HR406
Medium-μ triode
4.0*
0.065
150
2.5
-
-
1.0
22.5
1.2
B4
1
1931
HR410
Medium-μ triode
4.0*
0.10
200
2.5
-
-
3.0
9.0
1.80
B4
1
1931
HR607
RF neutralized triode
6.0*
0.07
200
1.25
-
-
3.0
15.0
2.00
B4
1
1930
KC4
General-purpose triode
2.0*
0.10
135
2.2
-
-
1.5
21.5
1.40
Ct8
24
KHI
VM hexode - FC
 - RF amplifier
2.0*
0.13
135
135
1.0
2.0
60
60
1.1
0.95
1.5
1.5
1.1M
1.3M
0.45⅄
1.40
Ct8+tc
43
L190
Output triode (AC)
1.0*
0.90
150
7.0
-
-
9.0
4.2
2.40
0.20
B4
1
1930
L210
AF triode
2.0*
0.10
200
3.0
-
-
6.0
16.0
1.00
B4
1
1931
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
L414
Output triode
4.0*
0.14
200
20.0
-
-
25.0
1.7
1.30
4.5
0.4
B4
1
1930
LD210
Detector or AF triode
2.0*
0.10
150
3.0
-
-
3.0
14.0
1.30
B4
1
1935
LD409
AF triode
4.0*
0.085
200
4.0
-
-
6.0
8.5
2.00
B4
1
1931
LD410
AF triode
4.0*
0.10
200
4.0
-
-
6.0
7.5
2.00
B4
1
1931
LG210
Detector or AF triode
2.0*
0.10
150
6.0
-
-
8.0
10.0
1.00
B4
1
1930
LG607
Detector or AF triode
4.0*
0.07
200
3.5
-
-
7.5
9.0
1.89
B4
1
1930
LL2
LL2s
AF or driver triode
2.0*
0.20
135
3.0
-
-
2.5
11.5
2.60
B4
Ct8
1
42
1936
1939
LL4
Driver triode
Output triode
4.0
1.20
400
250
18.0
18.0
-
 
-
 
10.0
 
2.0
 
3.50
 
 
11.0
 
1.0
 
900
B5
1
1937
LL4C
Line t/b triode
4.0
1.20
1000
3.0
-
-
3.50
B5
1
1939
LP220
Driver triode for CB220
2.0*
0.20
150
5.0
-
-
4.5
3.0
3.50
7.5
0.2
B4
1
1935
MH206
Heptode FC
2.0*
0.06
mix135
osc135
1.2
2.3
67.5
 
2.5
 
3.0
 
400.0
 
0.28⅄
 
B7+tc
1
1934
MH1118
Heptode FC
10.0
0.18
mix200
osc130
3.5
3.0
100
 
2.3
 
3/40
 
700.0
22.0
0.47⅄
1.40
C7
1
1934
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
MH4105
Heptode FC
4.0
1.00
200
5.00
100
1.2
3.0
600.0
0.5⅄
C7
1
1934
MH4105/71
Heptode FC
4.0
1.00
mixt250
osc150
3.5
4.0
100
 
2.3
 
3/45
 
360.0
22.0
0.52⅄
1.4
B7+tc
2
1934
MH4105/73
= MH4105/71
C7
1
MO465
Octode FC
4.0
0.65
mix250
osc70
1.6
2.0
70
 
3.8
 
1.5
 
1M
 
0.6⅄
 
B7
2
1934
O-15/400
Output triode
4.0*
1.00
400
40.0
-
-
37.0
1.6
5.0
6.0
3.5
900
B4
1
1935
O-40/1000
Output triode
10.0*
1.10
1000
50.0
-
-
67.0
2.8
3.00
7.0
8.5
1800
BC4
1
1935
P12/250
Output triode
4.0*
1.00
250
48.0
-
-
33.0
850Ω
6.00
2.4
2.8
700
B4
1
1936
P15/250 P15/250s
Output triode
4.0*
1.00
250
60.0
-
-
45.0
650Ω
6.00
2.3
3.5
750
B4
1
1936
P24/450
Output triode
7.5*
1.25
600
55.0
-
-
84.0
1.9
2.10
4.3
4.6
1500
B4
1
1937
P25/400
Output triode
6.0*
1.10
400
70.0
-
-
112.0
0.8
3.75
4.0
7.0
1500
B4
1
1935
P25/450
Output triode
7.5*
1.25
600
55.0
-
-
84.0
1.9
2.10
4.3
4.6
B4
1
1937
P25/500
Output triode
6.0*
1.10
500
65.0
-
-
104.0
1.0
3.00
4.5
5.0
1000
B4
1
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
P26/500
Output triode
4.0*
2.00
500
62.5
-
-
102.0
530Ω
7.00
5.0
6.3
1000
B4
1
1936
P27/500
Output triode
4.0*
2.00
500
62.5
-
-
31.0
1050Ω
8.50
5.0
5.0
500
B4
1
1937
P28/500
Output triode (Class AB push-pull)
7.5*
1.25
500
48.0
-
-
50.0
3.7
2.20
8.0
50.0
B4
1
1937
P30/500
Output triode
(Class AB push-pull)
4.0*
2.00
500
500
60.0
60.0
-
 
-
 
150.0
140.0
750Ω
 
4.00
 
2.5
3.6
6.0
40.0
2500
 
B4
1
1937
P60/500
Output triode
(Push-pull)
6.0*
4.00
600
900
130.0
90.0
-
 
-
 
110.0
280.0
1.0
 
3.50
 
2.6
12.0
15.0
70.0
1000
 
L4
1
1935
P100/1000
Output triode
6.0*
2.70
1000
100.0
-
-
146.0
1.4
4.00
6.7
30.0
1000
L4
1
1936
P190
Output triode (AC)
1.0*
0.90
150
12.0
-
-
13.5
2.50
2.40
0.35
B4
1
1930
P215
Output triode
2.0*
0.15
150
12.0
-
-
18.0
3.3
1.50
7.0
0.28
B4
1
1930
P220
Output triode
2.0*
0.20
150
10.0
-
-
12.5
2.2
3.00
6.7
0.26
B4
1
1931
P410
Output triode
4.0*
0.12
150
8.0
-
-
12.0
3.3
1.50
B4
1
1931
P414
Output triode
4.0*
0.14
100
14.0
-
-
16.0
1.7
2.80
4.5
0.20
B4
1
1930
P415
Output triode
4.0*
0.15
200
12.0
-
-
8.0
3.3
3.00
7.0
0.30
B4
1
1931
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
P430
Output triode
4.0*
0.30
250
25.0
-
-
30.0
2.2
2.50
5.8
0.80
B4
1
1930
P460
Output triode
4.0*
0.60
220
50.0
-
-
33.0
1.1
3.50
4.0
1.20
B4
1
1930
P610
Output triode
6.0*
0.10
200
12.0
-
-
18.0
3.3
2.00
7.0
0.28
B4
1
1931
P615
Output triode
6.0*
0.15
200
10.0
-
-
12.0
3.3
3.00
7.5
0.40
B4
1
1930
P2018
Output triode
20.0
0.18
200
25.0
-
-
18.0
2.8
2.50
6.0
0.90
750
B5
1
1932
P4100
Output triode
4.0*
1.00
400
35.0
-
-
35.0
1.4
5.00
6.0
3.50
B4
1
1931
PD220
Low mu triode
2.0*
0.20
150
4.0
-
-
6.0
10.0
1.70
B4
1
1931
PP2
 
PP2s
Output pentode
2.0*
0.14
135
7.0
135
1.0
5.0
150.0
2.10
19.0
0.44
B4
B5
Ct8
7
6
25
1936
1938
 
PP4
PP4s
Output pentode
4.0*
1.10
250
36.0
250
6.0
15.0
42.0
3.50
7.5
2.8
400
B5
Ct8
7
25
1936
1939
PP6As
Output pentode
6.3
0.20
250
32.0
250
5.0
18.0
2.85
8.0
2.3
Ct8
12
1937
PP6B
PP6Bs
PP6C
Output pentode
6.3
1.20
250
36.0
250
4.0
6.0
10.00
7.0
3.6
USM6
Ct8
B7
8
12
24
PP6E
Output pentode
6.3
1.20
375
72.0
275
8.0
17.0
8.50
3.5
9.0
B7
24
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
PP13A
Output pentode
13.0
0.30
250
34.0
250
6.5
16.5
2.65
7.0
3.0
B7
24
1939
PP13s
Output pentode
13.0
0.20
200
25.0
200
2.5
14.0
3.50
8.0
1.8
Ct8+tc
4
1939
PP24
PP24s
Output pentode
24.0
0.20
200
40.0
100
8.0
11.0
8.00
5.0
3.0
235
B7+tc
Ct8+tc
15
4
1937
1937
PP34
PP34s
Output pentode
35.0
0.20
200
45.0
200
5.0
6.5
8.50
4.4
3.2
B7+5c
Ct8+tc
15
4
1938
1938
PP35
Output pentode
35.0
0.20
200
45.0
200
5.0
6.5
8.50
4.4
3.2
170
B7+tc
24
1935
PP36
Output pentode
35.0
0.20
200
45.0
200
5.0
6.5
8.50
4.4
3.2
170
B7
25
1936
PP37
Output pentode
37.0
0.20
200
45.0
100
5.0
9.5
4.5
3.5
B7+tc
15
1938
PP60
Output beam tetrode
6.3
1.27
250
85.0
250
6.3
15.0
6.30
2.2
7.25
9.0
IO
36
1939
PP215
PP215s
Output pentode
2.0*
0.15
90
8.0
90
1.2
4.5
1.70
14.0
0.25
B5
Ct8
5
25
1938
1938
PP220
Output pentode
2.0*
0.20
200
6.0
150
2.0
6.0
13.0
0.30
B4+st
B5
26
6
1933
1933
PP222
Output pentode
2.0*
0.22
150
9.0
150
2.0
4.5
2.50
14.0
0.6
B4+tc
B5
7
6
1935
1935
PP225
PP225s
Output pentode
2.0*
0.265
135
18.0
135
3.6
12.0
30.0
2.00
6.0
0.8
B5
Ct8
6
25
1936
1938
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
PP230
Output pentode
2.0*
0.30
200
12.0
150
2.0
12
37.5
1.60
B4+st
B5
26
6
1931
1933
PP280
Output pentode
2.0*
0.30
200
12.0
150
4.0
16.0
11.0
0.6
B5
6
1934
PP415
Output pentode
4.0*
0.15
200
12.0
200
4.0
12.0
33.0
1.80
B4+st
26
1931
PP416
Output pentode
4.0*
0.15
200
10.0
80
2.0
12.0
60.0
2.00
B4+st
26
1931
PP430
Output pentode
4.0*
0.30
200
20.0
200
5.0
25.0
35.0
2.00
700
B4+st
26
1931
PP431
= Philips C443
Output pentode
4.0*
0.25
300
20.0
200
4.5
25.0
35.0
1.70
15.0
2.8
B4+st
B5
26
6
1931
1933
PP610
Output pentode
6.0*
0.10
200
12.0
150
1.5
12.0
40.0
1.6
B4+st
26
1931
PP2018
Output pentode
20.0
0.18
220
25.0
200
5.0
22.0
2.80
8.8
1.1
750
B5+st
B7
16
24
1932
 
PP2018D
See PP2018
-
-
1933
PP2101
Output pentode
USS5
3
PP4018
Output pentode
40.0
0.18
180
45.0
180
9.0
22.0
3.0
3.4
400
C7
9
1933
PP4100
Output pentode
4.0*
1.00
400
40.0
300
7.0
40.0
20.0
3.00
7.5
3.5
1000
B5
6
1931
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
PP4101
Output pentode
4.0*
1.10
250
36.0
250
7.0
22.0
43.0
3.50
7.5
2.5
600
B5
6
1934
PP4118
Output pentode
40.0
0.18
180
35.0
180
7.0
10.0
6.50
5.0
3.0
240
C7
9
1934
R150
General-purpose triode
1.0*
0.50
200
2.0
3.0
18.0
1.40
B4
1
1930
R208
General-purpose triode
2.0*
0.10
200
1.75
1.5
50.0
0.70
B4
1
1930
R406
RF or RCC triode
4.0*
0.07
150
2.0
-
-
3.0
18.0
1.40
B4
1
1930
R2018
General-purpose triode
20.0
0.18
200
2.5
-
-
2.0
13.3
2.50
B5
1
1932
S210
RF tetrode
2.0*
0.12
200
1.5
100
0.4
333.0
1.20
B4+tc
2
1930
S220
RF tetrode
2.0*
0.20
200
2.5
100
0.6
350.0
2.00
B4+t
2
1933
S406
RF tetrode
4.0*
0.065
150
4.0
80
1.0
2.0
400.0
0.80
B4+tc
2
1931
S407
RF tetrode
4.0*
0.07
200
1.5
100
330.0
1.00
B4+tc
2
1930
S410
RF tetrode
4.0*
0.10
200
1.5
100
330.0
1.00
B4+tc
2
1931
S2010N
RF tetrode
20.0
0.18
200
4.0
60
1.9
2.0
400.0
1.0
B5+tc
2
1932
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
S2018
RF tetrode
20.0
0.18
200
2.0
100
1.2
3.0
333.0
1.20
B5+tc
2
1932
SE220
VM RF tetrode
2.0*
0.20
200
3.0
100
0.5
0/15
333.0
1.20
B4+tc
2
1933
SE211
SE211C
VM RF tetrode
2.0*
0.12
150
1.0
75
0.1
0/5
1.5M
1.50
B4+tc
 
2
 
1936
1937
SE2018
VM RF tetrode
20.0
0.18
200
4.0
60
1.2
2/40
300.0
1.20
B5+tc
2
1932
SE2118
VM RF tetrode
20.0
0.18
200
3.0
100
3.5
3.00
B5+tc
2
1933
SP2B
SP2Bs
RF pentode
2.0*
0.06
135
2.6
135
1.0
0.5
1M
0.80
B7+tc
Ct8
13
25
1936
1938
SP2D
RF pentode
2.0*
0.10
150
1.45
150
0.35
0.1
2M
1.70
B4+tc
B7+tc
2
13
1938
1939
SP4
SP4s
RF pentode
4.0
0.65
250
3.0
100
1.2
2.0
2M
2.4
475
B7+tc
Ct8+tc
6
15
1937
1938
SP4A
RF pentode
4.0
0.65
250
3.0
100
1.2
2.0
2.40
450
B7+tc
56
1939
SP4B
RF pentode
4.0
0.65
250
2.9
250
0.8
2.0
2M
4.00
500
B7+tc
6
1936
SP6s
RF pentode
6.3
0.20
250
8.0
100
2.5
3/50
1.2M
1.70
Ct8+tc
15
1936
SP13
SP13s
RF pentode
13.0
0.20
200
3.0
100
1.2
2.0
1.5M
2.40
600
B7+tc
Ct8+tc
6
15
1935
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
SP13B
RF pentode
13.0
0.20
200
2.0
200
1.0
1.5
1.5M
3.50
B7+tc
6
1936
SP220
Output triode
2.0*
0.20
150
14.0
-
-
12.0
2.3
3.00
6.7
0.36
B4
1
1933
SP230
Output triode
2.0*
0.30
180
18.0
-
-
23.0
2.5
2.00
6.0
0.46
B4
1
1930
SP614
Output triode
6.0*
0.15
200
20.0
-
-
22.0
2.3
2.60
5.0
0.65
B4
1
1930
SS210
RF tetrode
2.0*
0.12
150
0.6
75
0.1
1.0
1M
1.40
B4+tc
2
1937
SS2018
RF tetrode
20.0
0.18
200
3.0
100
1.0
3.0
500.0
3.00
B5+tc
2
1933
SV220
VM RF tetrode
2.0*
0.20
200
3.5
100
0.6
0/15
400.0
1.80
B4+tc
2
1933
TH4A
Triode heptode FC
4.0
1.50
h275
t100
3.25
22.0
100
 
7.0
 
2.5/38
 
1.5M
 
0.75⅄
6.00
B7+tc
 
3
 
1938
 
TH4B
Triode heptode FC
4.0
1.50
h275
t100
3.25
19.0
100
 
7.0
 
2.5/38
2.5/38
1.5M
 
0.75⅄
4.50
B7+tc
3
1939
TH29
TH30
See TH4A
See TH4B
29.0
0.20
B7+tc
3
1938
TX4
Triode hexode FC
4.0
1.00
h300
t150
5.5
4.0
80
 
6.0
 
1.5
 
1.5M
 
1.0⅄
1.20
B7+tc
3
1936
TX21
Triode hexode FC
21.0
0.20
h250
t150
5.5
4.0
80
 
6.0
 
1.5/25
 
1M
 
1.0⅄
1.20
150
B7+tc
3
1936
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
TX29
Triode heptode FC
29.0
0.20
250
3.3
100
1.45M
0.75⅄
B7+tc
3
1939
VO2
VO2s
VM octode mixer
2.0*
0.13
mix135
osc135
0.7
1.3
45
 
0.6
 
1.0
 
2.5M
 
0.27⅄
 
B7
Ct8+tc
1
31
1935
1938
VO4
VO4s
VM octode mixer
4.0
0.65
mix250
osc90
1.6
2.0
70
 
3.8
 
1.5
 
1M
 
0.55⅄
 
B7
Ct8
2
2
1935
1938
VO6s
Octode FC
6.3
0.20
mix250
osc200
1.1
 
60
 
1.0
 
2.0
 
2M
 
0.45⅄
 
Ct8
2
1936
VO13
VO13s
VM octode mixer
13.0
0.20
mix250
osc90
1.6
2.5
70
 
3.8
 
1.5
 
1M
 
0.6⅄
 
200
 
B7
Ct8
2
2
1935
1937
VP2B
VP2Bs
VM RF pentode
2.0*
0.05
135
2.5
135
0.8
0.5
2M
0.65
B7+tc
Ct8
13
25
1936
1938
VP2D
VM RF pentode
2.0*
0.10
120
1.3
75
0.6
1.0
900.0
2.00
B4+tc
B7+tc
2
13
1938
1939
VP4
VP4s
VM RF pentode
4.0
0.65
250
8.0
100
2.5
3.0
1.2M
1.80
B7+tc
Ct8+tc
6
15
1938
1939
VP4A
VM RF pentode
4.0
0.65
250
8.0
100
2.5
3.0
1.2M
1.80
B7+tc
5
1938
VP4B
VM RF pentode
4.0
0.65
250
10.0
250
2.5
1.0
1M
4.00
B7+tc
6
1936
VP4C
VM RF pentode
4.0
0.65
250
10.0
250
2.5
1.0
1M
4.00
B7+tc
5
1938
VP6
VP6s
VM RF pentode
6.3
0.20
250
7.5
100
2.5
3.0
1.25M
1.75
B7+tc
Ct8+tc
6
15
1936
1936
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
VP13
VP13s
VM RF pentode
13.0
0.20
200
8.0
100
2.6
3/55
800.0
2.80
200
B7+tc
Ct8+tc
6
15
1935
1937
VP13B
VM RF pentode
13.0
0.20
200
6.0
200
2.0
1.5/50
800.0
3.50
200
B7+tc
6
1936
VP13K
VM RF pentode
13.0
0.20
200
8.0
100
2.6
3.0
900.0
2.00
200
B7+tc
6
1939
VX2
VX2s
VM hexode mixer
2.0*
0.13
150
1.0
60
2.0
1.0
2M
0.47⅄
B7+tc
Ct8
28
43
1937
1938
VX4
VX4s
VM hexode mixer
4.0
0.65
250
1.8
80
1.5
2.0
2M
0.55⅄
B7
Ct8
35
11
VX6s
VM hexode mixer
6.3
0.20
250
1.85
150
3.8
3.0
2M
0.35⅄
Ct8
11
1937
VX13
VX13s
Hexode mixer
13.0
0.20
250
1.8
80
1.5
2.0
2M
0.55⅄
B7
Ct8
35
11
1939
 

Notes: Lower case letters at the end of the Type have the following meaning. S = side contact base, n = non-microphonic, c = metal top cap replacing earlier screw terminal, g = low-capacity triode.

 

Rectifiers

Type
Class
Cathode
Va
DC Ia
PIV
DC Vo
Base
Year
 
 
Type
Volts
Amps
Max RMS
mA
Volts
Volts
Type
Ref
Year

 Tungsram

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
5T4-G See US
5U4-G See Brimar
5V4-G See Brimar
5X4-G/GT See Brimar
FW
DH
5.0
3.00
500
250
IO
61
5Y3-G See Brimar
5Z3 See Brimar
5Z4-G See Brimar
6BT4
FW
IH
6.3
0.60
350
90
B8A
14
6V4
FW
IH
6.3
0.60
350
90
B9A
31
6X2
EHT
IH
6.3
90Ma
0.35
17kV
Wires
6X4 See Brimar
6X5-G See Brimar 6X5-GT/G
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6Z4, 84
FW
DH
6.3
0.50
350
60
USM5
5
19X3
HW
IH
19.0
0.30
4,000
B9A
18
19Y3
HW
IH
19.0
0.30
250
180
B9A
18
25Y5, See Brimar 25Y5-G
25Z4-G See Brimar
25Z5
2xHW
IH
25.0
0.30
235
150
USM6
9
25Z6-G, 25Z6-GT/G
2xHW
IH
25.0
0.30
235
150
IO
111
31A3
HW
IH
31.0
0.10
250
100
B8A
1
35W4
HW
IH
35.0
0.15
117
100
B7G
33
35Z4-GT
HW
IH
35.0
0.15
235
100
IO
55
35Z5-GT/G
HW
IH
35.0
0.15
235
100
IO
51
50Y6
2xHW
IH
50.0
0.15
117
75
IO
53
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
80 See Brimar
80A
FW
IH
5.0
2.00
400
125
USM4
21
81
HW
DH
7.5
1.25
700
85
USM4
4
APV4
FW
IH
4.0
2.00
400
120
B4
14
1936
APV4100
FW
DH
4.0
2.00
500
120
B4
5
APV4200
FW
IH
4.0
2.00
300
120
B4
14
1933
AZ1
FW
DH
4.0
1.00
300
60
Ct8
23
1940s
AZ2
FW
DH
4.0
2.00
500
120
Ct8
23
1940s
AZ4
FW
DH
4.0
2.40
500
120
Ct8
23P
1940s
AZ31
FW
DH
4.0
1.10
500
60
IO
60
1940s
AZ32
FW
IH
4.0
2.00
500
120
IO
60
1940s
CY1
HW
IH
20.0
0.20
250
75
Ct8
5
1940s
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
CY31
HW
20.0
0.20
250
120
IO
55
1940s
CY32
FW
DH
30.0
0.20
250
120
IO
53
1940s
EZ3
FW
IH
6.3
0.65
400
100
1100
Ct8
14
1938
EZ4
FW
IH
6.3
0.90
400
175
1120
Ct8
14
1938
EZ33
FW
IH
6.3
0.60
325
70
IO
54
1940s
IVR120/350s
FW
IH
4.0
4.00
350
120
Ct8
14
1938
PV4
PV4s
FW
DH
4.0
2.00
500
120
B4
Ct8
29
23
1936
PV25
HW/VD
IH
25.0
0.30
250
120
B7
29
1938
PV29
PV29s
HW/VD
IH
30.0
0.20
125
120
B7
Ct8
29
44
1938
1938
PV30
PV30s
HW/VD
IH
30.0
0.20
275
60
B7
Ct8
29
44
1937
1937
PV75/1000
FW
DH
2.2
4.00
1000
75
B4
5
1937
PV100/2000
FW
DH
4.0
2.20
2000
100
B4
5
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
PV475
FW
DH
4.0
0.80
250
50
B4
5
1930
PV495
FW
DH
4.0
1.10
300
100
B4
5
1930
PV3018
FW
IH
30.0
0.18
250
100
C7
7
1934
PV4018
FW/VD
IH
40.0
0.18
125
100
C7
7
1933
PV4100
FW
DH
4.0
1.00
500
60
B4
5
1931
PV4200
FW
DH
4.0
2.00
500
120
B4
5
1931
PV4201
FW
DH
4.0
2.00
600
180
B4
5
1934
PVA6
PVA6s
FW
IH
6.3
0.25
350
60
B5
Ct8
3
37
1937
1937
PVB6
PVB6s
FW
IH
6.3
0.60
350
100
B5
Ct8
3
37
1937
1937
PVC6
PVC6s
FW
IH
6.3
0.90
350
175
B5
Ct8
3
37
1937
1937
RG250/1000
FW/MV
DH
4.0
3.00
1000
250
B4+tc
6
1937
RG250/2000
HW/MV
DH
2.5
5.00
2000
250
B4
4
1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
RG250/3000
HW/MV
DH
2.5
5.00
3000
250
USM4+tc
9
RV120/350
RV120/350s
FW
DH
4.0
2.00
350
120
B4
Ct8
5
23
1938
1938
RV120/500
RV120/500s
FW
DH
4.0
2.00
500
120
1400
B4
Ct8
5
23
1938
1938
RV200/600
FW
DH
4.0
2.00
600
200
B4
5
1938
V20
V20s
HW
IH
20.0
0.20
250
80
B5
Ct8
8
36
1937
1937
V20/7000
HW
DH
4.0
2.30
7000
20
B4+tc
6
1936
V30
HW
IH
30.0
0.20
275
120
B5
8
1936
V430
HW
DH
4.0
0.30
200
25
B4
8
1930
V495
HW
DH
4.0
1.00
400
70
B4
8
1930
V2018
HW
IH
20.0
0.18
250
70
B5
8
1933
V2118
HW
IH
20.0
0.18
250
75
B5
8
1934

 

Tuning Indicators

Type
Heater
Anode
Target
-Vg1
Shadow
Base
Year
 
Volts
Amps
Volts
mA
Volts
mA
max/min
angle x°
Type
Ref
Year

 Tungsram (Excludes Mullard types)

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
6FG6
6.3
0.27
250
250
1.6
22/0
B9A
55
6G5-G
6.3
0.30
250
2.0
22/0
IO
46
6U5
6.3
0.30
250
0.24
250
4.0
22/0
0/90
USM6
11
EFM11
6.3
0.20
260
250
20/1.5
3/70
Y8A
10
ME4s
4.0
0.30
250
0.1
250
2.0
5/0
0/90
Ct8
9
1937
ME6s
6.3
0.20
250
0.12
250
2.0
5/0
0/90
Ct8
9
1937
VME4 (Variable-μ)
4.0
0.50
250
0.1
250
1.5
18/0
0/90
B7
19
1937

 

Barretters

Type
Current
Voltage
Base
Year
 
Amps
Min-Max
Type
Ref
Year

 Tungsram

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
180R
0.18
1932
BR201
BR201s
0.20
90-230
B4
Ct8
13
8
BR202
BR202s
0.20
40-100
B4
Ct8
13
8
BR300OC
3.00
7-18
ES
1
BR300
0.30
90-230
ES
1
BR1500
1.50
B4
13

 

Voltage Stabilisers

Type
AV Stab
Striking
Current mA
Regulation
Base
 
Volts
Voltage
Min
Max
Volts
Type
Ref

 Tungsram

 Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
VR105/30
105
135
5
40
4.0
IO
74
VR150/30
150
180
5
40
5.5
IO
74

Use browser back button to return.
rvd-089