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| Eindpenthode / output
pentode |
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Introduced
in 1933
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| 1 |
2 |
3 |
4 |
5 |
base |
| a |
f,g3 |
f |
g1 |
g2 |
B5 |
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
base |
|
- |
f,g3 |
f |
- |
- |
g1 |
g2 |
a |
P |
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The Marconi
KL1 is an indirectly heated triode, introduced in 1927
and equivalent with E409 -
E415 |
| Vf |
Af |
Va |
Vs |
Vg |
mAa |
mAs |
ra |
gm |
Pout |
Pdiss |
| 2 |
0.15 |
135 |
100 |
-6 |
8 |
1.2 |
100,000 |
1.7 |
0.4 |
1.5 |
| Equivalent |
C243A, DP8, KL71705, P210, PP215,
TKL1 |
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