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Duo Dissimilar Triodes |
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While there are only ten tubes listed on this page that's nine more than I thought there were. |
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Heater (H), Filament (F) |
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Type |
Function or Configuration |
H/F |
V |
A |
Other heater voltages |
Triode |
Plate Dissipation (Watts) |
Max Plate Voltage |
Gm |
µ |
Rp |
Base |
6CM7 |
Duo Triode |
H |
6.3 |
0.6 |
8 |
1 |
1.25 |
500 |
2000 |
21 |
10500 |
9 pin mini |
2 |
5.5 |
500 |
4400 |
18 |
4100 |
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6CS7 |
Duo Triode |
H |
6.3 |
0.6 |
8 |
1 |
1.25 |
500 |
2200 |
17.0 |
7700 |
9 pin mini |
2 |
6.5 |
500 |
4500 |
15.5 |
3450 |
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6CY7 |
Duo Triode |
H |
6.3 |
0.75 |
8, 11 |
1 |
1.0 |
350 |
1300 |
68 |
52 k |
9 pin mini |
2 |
5.5 |
350 |
5400 |
5 |
920 |
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6DE7 |
Duo Triode |
H |
6.3 |
0.9 |
10, 13, 19 |
1 |
1.5 |
330 |
2000 |
17.5 |
8750 |
9 pin mini |
2 |
7.0 |
275 |
6500 |
6.0 |
925 |
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6DR7 |
Duo Triode |
H |
6.3 |
0.9 |
10, 13 |
1 |
1.0 |
330 |
1600 |
64 |
40 k |
9 pin mini |
2 |
7.0 |
275 |
6500 |
6.0 |
925 |
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6EA7 |
Duo Triode |
H |
6.3 |
1.05 |
- |
1 |
1.0 |
350 |
2200 |
66 |
30 k |
Octal |
2 |
10 |
550 |
6000 |
5.5 |
920 |
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6EM7 |
Duo Triode |
H |
6.3 |
0.925 |
10, 13 |
1 |
1.5 |
330 |
1600 |
68 |
40 k |
Octal |
2 |
10 |
330 |
7200 |
5.4 |
750 |
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6EW7 |
Duo Triode |
H |
6.3 |
0.9 |
10 |
1 |
1.5 |
330 |
2000 |
17.5 |
8750 |
9 pin mini |
2 |
10 |
330 |
7500 |
6.0 |
800 |
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6FD7 |
Duo Triode |
H |
6.3 |
0.9 |
13 |
1 |
1.5 |
330 |
1600 |
64 |
40k |
9 pin mini |
2 |
10 |
330 |
7500 |
6.0 |
800 |
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6JK8 |
FM Osc Mixer |
H |
6.3 |
0.4 |
8, 17 |
1 |
1.0 |
165 |
6800 |
55 |
8000 |
9 pin mini |
2 |
2.0 |
200 |
13000 |
70 |
5400 |
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12DW7 / ECC832 |
AF Amplifier and Phase Inverter |
H |
12.6 CT |
0.15 |
- |
1 |
1.2 |
330 |
1600 |
100 |
62.5 k |
9 pin mini |
2 |
3.3 |
330 |
2200 |
17 |
7700 |