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Double triode
Introduced in 1952
With centre tap for 6.3 volts
usage
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
base |
|
a(2) |
g(2) |
k(2) |
f |
f |
a(1) |
g(1) |
k(1) |
fct |
B9A |
| Vf |
Af |
Va |
Vg |
mAa |
Ra |
gm |
Pdiss |
| 12.6 |
0.15 |
250 |
-2 |
10 |
12,000 |
5 |
2.5 |
| Equivalent |
12AT7,
13D9, 2406,
6060, 6201, 6208, 6211,
6679, 7492, 7728, A2900, B152, B309, B739, CC81E,
CV455,
CV4024, CV5212, CV8154, CV9859, E81CC,
ECC801, M8162 |
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