Xtraudion / Dextraudion |
©
Tube Collection Udo
Radtke, |
Diese Röhren wurden 1922 von Economic Electric Ltd. hergestellt. Zunächst war es das Xtraudion. 1924 wurde die gleiche Röhre als "Dull Emitter" hergestellt. Danach gab es dann die Typen: | Dex235 | Dex240| Dex376 |Dex312 | Dex406 |Dex412 | Dex530 | Dex440 | Die Bezeichnungen besagen: 1.Ziffer = Heizspannung, 2. u. 3.Ziffer Heizstrom. Beispiel Dex235: Uf=2V; If=0,35A.
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These tubes have been produced 1922 by Economic Electric Ltd. The first one was the Xtraudion. 1924 was the same tube produced as "Dull Emitter". Thereafter followed the types:| Dex235 | Dex240| Dex376 |Dex312 | Dex406 |Dex412 | Dex530 | Dex440 | The designation was 1.character = Voltage Filament, 2. u. 3.character current filament. Example Dex235: Uf=2V; If=0,35A. |
Dextraudion | Xtraudion from EEC | Xtraudion |
Xtraudion EEC | Xtraudion EEC | Xtraudion (andere Anode) |
Thanks to Larry Daniels |