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Double triode
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Introduced in 1954
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Heaters can also be connected for 6.3V, 350mA
operation. |
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| ai |
gi |
ki |
f |
f |
a |
g |
k |
fc |
|
Vf |
Af |
Va |
Vg |
mAa |
ra |
gm |
Pdiss |
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12.6 |
0.15 |
250 |
-2 |
1.2 |
62,500 |
1.6 |
1 |
| Equivalent |
12AX7,
5751, 6681, 7025, B339,
CV492, CV4004,
CV4110, E83CC, ECC803,
ECC803S,
M8137 |
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