Antique radios, Old Time Radios
305A
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Country:
United States of America (USA)
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| Identical to |
305A
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Filament |
Vf 10 Volts / If 3.1 Ampere / Direct |
| Description |
Hard glass VHF transmitting tetrode. Thoriated filamentary cathode; 60W plate dissipation; 50MHz full ratings; cooling required over 50MHz. UX base; screen grid, plate and filament center tap to three top caps. *Note: both base diagrams are wrong and do not show the filament center tap connected to one of the top pins!
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49 Ratheiser, Röhrenhandbuch, 1948
- - Manufacturers Literature WE UHF Amateur Transmitting, 1936
Tube Lore (I)
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305A: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
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