|
Multi-system with diode, tetrode and output
pentode
Introduced in 1934
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
tc |
base |
|
a(t) |
k(t) |
g2(t) |
g1,g3(t) |
d |
k(d) |
nc |
a(p) |
k(p)* |
g2(p) |
f |
f |
g1(p) |
Loewe 12 pin |
*) a 6 kOhm resistor was added between pin
9 and pin 11 after July 1937
| |
Vf |
Af |
Va |
Vs |
Vg |
mAa |
mAs |
ra |
gm |
| Pentode |
63 |
0.18 |
250 |
200 |
-8 |
50 |
9 |
25,000 |
4 |
| Tetrode |
|
|
90 |
40 |
|
0.35 |
|
2,000,000 |
1 |
|
