 |
| Identical to |
E428
= REN904
= AG495
= A4110
|
| Similar
Tubes |
E428_4pin (other base)
AR4101 (other characteristic (electr. data))
|
| First Series |
1929 Tube leaflet collection E.Erb Analysis by original leaflets |
|
| Base |
Europe 5-Pin (O5A, B5) (Codex=F)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
If: 1 Ampere /
Vf 4 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
| |
|
| |
ficha de valvulas
Getulio Jimenez-Gomez
|
|
|
|
HS
Heinz Schmidt
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
|
|
|
