.jpg)
|
Double triode
Heaters can be parallel
connected for 6.3V, 350mA operation.
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
base |
| a2 |
g2 |
k2 |
f |
f |
a1 |
g1 |
k1 |
fct |
B9A |
|
Vf |
Af |
Va |
Vg |
mAa |
ra |
gm |
Pdiss |
|
6.3 |
0.3 |
250 |
-2 |
1.25 |
62,500 |
1.6 |
1.25 |
| Equivalent |
12AD7, 12AX7, 12DF7, 12DT7, 12DM7,
5751,
6681, 7025, 7058, 7729,
B339, CV4110,
CV492,
E83CC,
ECC83 |
|
