Antique radios, Old Time Radios
831
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Country:
United States of America (USA)
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| Identical to |
831
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| Similar
Tubes |
Normally replaceable-slightly different:
FP-2
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| Base |
SPECIAL TUBEBASE in general (Codex=sp)
Sidecontact and top contact.
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| Was used by |
Transmittertube (Radio) |
| Filament |
Vf 11 Volts / If 10 Ampere / Direct / Specified voltage AC/DC |
| Description |
Work started on development of this tube in September 1926 and the type number was assigned to it in August 1932. It was announced in October of that year. Also listed on page 77, Tube Lore II
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| Information source |
Tube Lore (II) p. 77 & 212
- - Manufacturers Literature Development of Radiotron transmitting tubes to 19
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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831: Tabu Röhren-Codex, 1948
Anonymous 15 Collector
More ...
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831: RCA Technical Manual TT3
Miguel Angel Trujillo-Rodriguez
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