Antique radios, Old Time Radios
BK1
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Country:
Germany
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| Identical to |
BK1
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| Similar
Tubes |
Heater different:
AK1
|
| First year |
Mar.1934
Tube leaflet collection E.Erb Analysis by original leaflets
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| First Source
(s) |
Feb.1934 : -- Original-techn. papers.
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Successor Tubes
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1934
CK1
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| Base |
Europe 7-Pin C7A (Hx C, C7, C) 1933
Top contact with a cap.
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| Filament |
Vf 15 Volts / If 0.18 Ampere / Indirect / Specified current DC = (Series working) |
| Description |
Diese Röhre war bei Telefunken nur geplant. Ob Prototypen exististieren, ist nicht bekannt. Quelle: Internes Material von Telefunken, Berlin 1934.
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BK1: RTT 1974 (Franzis) 13. Auflage
Martin Renz
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Just Qvigstad
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