Antique radios, Old Time Radios
GT21
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Country:
Switzerland
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| Identical to |
GT21
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| Base |
Noval, 9 pin miniature (USA pico-9) B9A
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| Was used by |
Technology / Measurement |
| Filament |
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| Description |
Bereitschaftsspannung: 250...350 VDC; 180...250 VAC
Daueranodenstrom: 10...40 mA
Sperrung bei: Ug <-6 V; max. -80 V
Durchlass bei: Ug >-0,5 V; max. +50 V
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GT21: Ratheiser RTH,3.Aufl.,1964
Egon Penker
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GT21: Ratheiser RTH,3.Aufl.,1964
Egon Penker
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Just Qvigstad
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GT21: Ratheiser RTH,3.Aufl.,1964
Egon Penker
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Collection of a member from D |
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