Antique radios, Old Time Radios
311A
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Country:
United States of America (USA)
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| Identical to |
311A
= S311A
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| Similar
Tubes |
Normally replaceable-slightly different:
311B
; CZ-504-D
Heater different:
329A_WE
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| Base |
UY-Base, 5 Pins (USA, April 1927)
Top contact with a cap.
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| Filament |
Vf 10 Volts / If 0.64 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Receiving pentode; 2W power output class A with 135V, 30mA. Sibley also gives a 'B' variant, unknown differences.
Also NEC and STC production reported by Sibley.
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| Information source |
Tube Lore (I)
- - Manufacturers Literature
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Just Qvigstad
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311A: own collection
Peter den Boer
More ...
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Collection of
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