Radios antiguas y Radios de Colección
C304
| Base |
Pin-and-blade jumbo (3 contacts)
Top contact with a cap.
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| Usada en |
Transmittertube (Radio) |
| Filamento |
Vf 11 Volt / If 14.75 Ampere / Direct / Specified voltage AC/DC |
| Descripción |
In line with the agreement RCA/GE had with E T Cunningham, this tube was developed at the GE laboratories in the Spring of 1920 and it was assigned the type number in November 1920. It was announced to the public in March 1921.
Special mounting (base).
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
x 337 x 110 mm / x 13.27 x 4.33 inch |
| Literatura |
-- Collector info (Sammler) Banneitz, TB der drahtl. Telephonie u.Telegr. 1927
- - Manufacturers Literature 1922-1923
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C304: Fin Stewart
Fin Stewart
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Just Qvigstad
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C304: own collection
Peter den Boer † 2025
Mas ...
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