| Country: |
Great Britain (UK) |
|
Brand: |
Ferranti, GB |
| |
Tube type: |
Triode, vacuum |
|
Tube ID = 12639
|
 |
| Identical to |
D4
= REN904
= D-IV
|
| Similar
Tubes |
MH4 (can normally be replaced - small diff'ce)
ACHL (can normally be replaced - small diff'ce)
HLA2 (can normally be replaced - small diff'ce)
4GPAC (can normally be replaced - small diff'ce)
354V (can normally be replaced - small diff'ce)
A30D (can normally be replaced - small diff'ce)
|
|
| Base |
Europe 5-Pin (O5A, B5) (Codex=Eu)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
If: 1 Ampere /
Vf 4 Volts /
|
| Description |
Typ:- Va 200; Ia 4mA; Vg -3.0; Ra 12,500; gm 3.3 mA/V
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
|
|
|
|
|
|
Own Collection
Jehu Bloodworth
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
|
