Antique radios, Old Time Radios
220B_XMIT
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Country:
United States of America (USA)
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| Identical to |
220B_XMIT
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| Similar
Tubes |
Normally replaceable-slightly different:
38120
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| Predecessor Tubes |
220A
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Successor Tubes
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220C
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| Base |
TRANSMITTING & Power-TUBES/VALVES in gen
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 21.5 Volts / If 41 Ampere / Direct |
| Description |
Pure tungsten filament; water cooled via external jacket. 10KV, 3MHz full ratings, Mu 40, 10KW.
Federal and WE known manufacturers.
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| Information source |
Tube Lore (I)
Tube Lore (II) p. 182 & 234
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220B_XMIT: Manufacturer's Literature
Emilio Ciardiello
More ...
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