| Country: |
United States of America (USA) |
|
Brand: |
Common type USA |
| |
Tube type: |
Screen-grid Tetrode RF/IF-Stage |
|
Tube ID = 21341
|
 |
| Identical to |
222
= 22
|
|
| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.13 Ampere /
Vf 3 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
|
 |
|
KoBi
Konrad Birkner
|
|
ARRL Handbook 1972
Michael Schlör
|
|
 |