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1940's European Transmitting Valves (Class, input/output power levels only)
| Maker |
Type No. |
Class |
O/P
[W] |
Approx.
Drive [W] |
US Equiv. |
| Mullard |
TZ05-20
TYl-50 *
PV05-15 #
PZ05-15
PZ1-35
PV1-35 # |
Triode
"
Pentode
"
"
" |
21
75
20
20
40
75 |
2.4
5.0
0.2
0.2
1.0
1.5 |
|
| Ediswan |
ESW20 |
Triode |
40 |
5.0 |
T20 |
Standard
Telephones |
4304B *
4316A *
4305A *
4061A #
4052A
4069A
4307A *
4074 *# |
Triode
"
Tetrode
Pentode
"
"
"
Twin-Triode |
85
6
85
24
50
160
20
10 |
5.0
1.5
5.0
0.5
1.0
1.8
1.5
1.0 |
304B
316A
305A
RK25
RK20
RK28
307A
RK34 |
| Tungsram |
6L6G *
0S12/500 |
Tetrode
Pentode |
24
20 |
2.0
0.8 |
6L6G
837 |
| R.C.A. |
807 *#
802 #
804 |
Tetrode
Pentode
" |
25
16
80 |
0.25
0.25-0.8
0.9 |
|
Marconi
Osram |
DET12 *
PT 5
PT 7
KT8 *#
DET19 *# |
Triode
Pentode
"
Tetrode
Twin Triode |
65
90
1.5
37
10 |
6.0
1.0
0.1
0.5
1.0 |
807
RK34 |
* For ultra-high frequencies;
# Indirectly heated cathode |
1940's Transmitting Valve Data
Class
Tr:
Triode,
P:
Pentode,
T:
Tetrode |
Type |
Filament
or heater
|
Max.
Dissi-
pation
Watts |
Max.
Anode
Volts |
Max.
Screen
Volts |
Max.
Screen
Dissi-
pation
Watts |
Base |
Condition |
Anode
Volts |
Scrn.
Volts |
Suppr.
Grid
Volts |
Grid
Bias
Volts |
An-
ode
Cur-
rent
mA |
Scrn.
Cur-
rent
mA |
Grid
Cur-
rent
mA |
Screen
Resist-
ance
Ohms |
Grid
Dri-
ving
Power
Watts |
Out-
put
power
Watts |
Remarks |
| V |
A |
| Tr |
ESW20
TZO8-20
T20 |
7.5 |
1.75 |
20 |
750 |
- |
- |
UX
4-Pin |
Class C cw |
750 |
- |
- |
-100 |
75 |
- |
17 |
- |
5 |
40 |
- |
| Tr |
4074A
RK34
TVO3-10
DET19 |
6.3 |
0.85 |
10 |
300 |
- |
- |
UX 7-Pin |
Class C cw |
300 |
- |
- |
-36 |
80 |
- |
20 |
- |
1.8 |
16 |
Twin Triode. Up to 240 MHz |
| Tr |
4304B
DET12
TY1-50 |
7.5 |
3.25 |
50 |
1250 |
- |
- |
UX 4-pin |
Class C cw,
Class C phone |
1250
1000 |
- |
- |
-200
-180 |
100
100 |
- |
25
25 |
- |
5
5 |
85
65 |
Output at 60MHz |
| Tr |
4316A
TYO4-30 |
2.0 |
3.65 |
30 |
450 |
- |
- |
None |
Class C cw,
Class C phone |
450
400 |
- |
- |
-150
-150 |
80
80 |
- |
12
12 |
- |
1.5
1.5 |
8.5
6.5 |
Output at 300 MHz.
Transmitting Acorn. |
| Tr |
3B/250-A |
1.4 |
5.0 |
25 |
500 |
- |
- |
None |
Oscillator |
500 |
- |
- |
- |
50 |
- |
- |
- |
- |
4.5 |
Output at 700MHz.
Transmitting Acorn. |
| Tr |
4211D/E
0/75/1000 |
10.0 |
3.0 |
65 |
1000 |
- |
- |
Bayonet |
Class C cw |
1000 |
- |
- |
-160 |
95 |
- |
15 |
- |
7.0 |
65 |
- |
| Tr |
T55
OQQ/50/1500 |
7.5 |
3.25 |
55 |
1500 |
- |
- |
UX 4-pin |
Class C cw |
1500 |
- |
- |
-200 |
150 |
- |
30 |
- |
9.5 |
140 |
- |
| P |
4061A
RK25 |
6.3 |
0.8 |
12 |
500 |
200 |
6 |
UX 5-pin |
Class C cw,
Class C phone |
500
500 |
200
150 |
+45
-30 |
-100
-75 |
48
30 |
15
20 |
-
7.5 |
-
- |
0.5
0.4 |
15
3 |
- |
| T |
6L6G |
6.3 |
0.9 |
30 |
400 |
300 |
5 |
Octal |
Doubler |
375 |
200 |
- |
-300 |
80 |
- |
3 |
- |
1.5 |
15 |
- |
| P |
OS/12/501 |
6.3 |
0.7 |
12 |
500 |
200 |
8 |
UX 7-pin |
Clas C Sup. mod. |
500 |
200 |
-65 |
-20 |
30 |
23 |
3.5 |
14000 |
0.1 |
5 |
Equivalent to 837 |
| P |
4052A
RK20
OS/40/1250 |
7.5 |
3.0 |
40 |
1250 |
300 |
15 |
UX 5-pin |
cw
phone |
1250
1250 |
300
300 |
+45
-40 |
-100
-100 |
92
47 |
32
36 |
5
5 |
26000
25000 |
1.0
1.0 |
80
21 |
- |
| T |
5B/250A
KT8
807 |
6.3 |
0.9 |
25 |
600 |
300 |
3.5 |
UX 5-pin |
Class C cw |
600 |
300 |
- |
-200 |
100 |
12 |
5 |
40000 |
0.2 |
40 |
KT8 heater
6.3V 1.27A |
| T |
PVO4-10 |
12.0 |
0.7 |
10 |
500 |
250 |
3 |
English
7-pin |
Class C cw |
500 |
250 |
- |
-50 |
50 |
12 |
5 |
21000 |
0.35 |
15 |
Near equivalent to 802 |
| T |
APP4E |
4.0 |
2.1 |
18 |
375 |
275 |
3 |
English 7-pin |
Crystal Oscillator |
375 |
250 |
- |
- |
50 |
10 |
2 |
- |
- |
7.5 |
- |
Data not guaranteed free from
error.
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