|
|
HF pentode for battery receivers
The KF4M is a military version
Introduced in 1936
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
tc |
base |
| m |
-f |
+f |
- |
g3 |
- |
g2 |
a |
g1 |
P |
| Vf |
Af |
Va |
Vs |
Vg |
mAa |
mAs |
ra |
gm |
Pdiss |
| 2 |
0.065 |
90 |
90 |
-0.5 |
1.2 |
0.4 |
900,000 |
0.7 |
0.5 |
| Equivalent |
2J2M*,
2B4, BHP61, TKF4 |
*) octal base
|
