Antique radios, Old Time Radios
R3_Rectobulb
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Country:
United States of America (USA)
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| Identical to |
R3_Rectobulb
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| Similar
Tubes |
Normally replaceable-slightly different:
866A
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
Top contact screw type.
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| Was used by |
Industrial |
| Filament |
Vf 10 Volts / If 1.75 Ampere / Direct / Specified voltage AC/DC |
| Description |
NATIONAL RADIO TUBE CO. This tube is most satisfactory for amateur radio use. the top cap consists of a brass binding post attached to a Bakelite cap for extra strength.
Max revers voltage: 3000 V
Max current: 250 mA
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| Information source |
-- Collector info (Sammler)
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R3_Rectobulb: Fin Stewart
Fin Stewart
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Just Qvigstad
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