 |
| Identical to |
D404
= P4100
= P460
= RE604
|
| Similar
Tubes |
A.T.20 (can normally be replaced - small diff'ce)
475K (can normally be replaced - small diff'ce)
|
| First Series |
1927 Tube leaflet collection E.Erb Analysis by original leaflets |
|
| Base |
Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
If: 0.6 Ampere /
Vf 4 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
ficha de valvulas
Getulio Jimenez-Gomez
|
|
|
|
g.h.
Gerhard Heigl
|
|
g.h.
Gerhard Heigl
|
|
Philips Verstärkerröhren
Gerhard Heigl
|
|
|
