Antique radios, Old Time Radios
HDD1
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Country:
Germany
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| Identical to |
HDD1
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| First Source
(s) |
Feb.1934 : -- Original-techn. papers.
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| Filament |
Vf 4 Volts / Direct / Battery = |
| Description |
Gegentakt-B-Verstärker. Der Kennbuchstabe H sollte ursprünglich für 4V-Batterieheizung stehen. Quelle: Interne Telefunkenunterlagen aus dem Jahr 1934.
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