Antique radios, Old Time Radios
9C21
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Country:
United States of America (USA)
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| Identical to |
9C21
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| Filament |
Vf 19.5 Volts / If 415 Ampere / Direct |
| Description |
Water cooled transmitting triode; mu 38, 40KW anode power dissipation, 15MHz full ratings. Multi-strand single-phase pure tungsten filament.
Amperex, GE, Machlett and RCA known manufacturers.
Text in other
languages (may
differ)
|
| Weight |
18000 g / 634.93 oz |
| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
Tube Lore (I)
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9C21: Manufacturer's Literature
Emilio Ciardiello
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