 |
| Identical to |
FC4
|
| Similar
Tubes |
AK1 (other base)
VO4 (can normally be replaced - small diff'ce)
MH4105 (can normally be replaced - small diff'ce)
|
|
| Base |
British-7-Pin, old (M7A) (Codex=Neo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
If: 0.65 Ampere /
Vf 4 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
|
 |
|
my collection
Wolfgang Thiel
|
|
Mullard Valves 1936
Peter Hoddow
|
|
 |