 |
| Identical to |
DE3
|
| First Source
(s) |
1923 : British Radio Valves - The Vintage Years, Thrower
|
|
| Base |
Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
If: 0.06 Ampere /
Vf 3 Volts /
|
| Literature |
Saga of the Vacuumtube, Tyne 1925 Brown Brothers Catalog 217
Taschenbuch zum Röhren-Codex 1948/49
|
|
|