Antique radios, Old Time Radios
304A
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Country:
United States of America (USA)
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| Identical to |
304A
= 834
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| Similar
Tubes |
Normally replaceable-slightly different:
304B
; CV2759
; TS2Sp
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bt)
2 Top contacts.
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| Was used by |
Radar |
| Filament |
Vf 7.5 Volts / If 3.2 Ampere / Direct |
| Description |
UHF power triode. Prototypes described by Fay and Samuel, Bell Labs, in the I.R.E. Proc. 1934. Listed in the 1936 WE catalog.
Thoriated tungsten filament; 50W anode power; 100MHz full ratings, 300MHz with reduced ratings. S21 bulb with ceramic UX base; plate and grid pins on the top.
Similar to 834.
|
Dimensions (WHD)
incl. pins / tip |
x 174 x 67 mm / x 6.85 x 2.64 inch |
| Information source |
Tube Lore (II) p. 239
- - Manufacturers Literature
Tube Lore (I)
Taschenbuch zum Röhren-Codex 1948/49
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304A: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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