 |
| Identical to |
H406
= RE074
|
| Similar
Tubes |
H412 (can normally be replaced - small diff'ce)
|
| First Series |
1926 Tube leaflet collection E.Erb Analysis by original leaflets |
| First Source
(s) |
Mar.1927 : Funk Bastler, Der 1927 Heft 39
|
|
| Base |
Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
|
| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Direct /
-: Battery = /
If: 0.06 Ampere /
Vf 4 Volts /
|
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
|
|
|
|
|
|
CA
Christian ADAM
|
|
Telefunken Werkstattbuch
Wolfgang Bauer
|
|
Valvo Daten Heft 1930
Trev Levick
|
|
|
