 |
| Identical to |
A9
|
| Similar
Tubes |
A410 (can normally be replaced - small diff'ce)
|
|
| Base |
Europe 4-Pin (A, 4A, B4, since 1914)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.065 Ampere /
Vf 4 Volts /
|
| Literature |
Babani, International Radio Tube Encyclopaedia
|
|
|
|
 |
|
CA
Christian ADAM
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
 |