Antique radios, Old Time Radios
57T5302
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Country:
United States of America (USA)
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| Identical to |
57T5302
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| Similar
Tubes |
Normally replaceable-slightly different:
99X44
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| Base |
Edison giant, E40 = 40 mm-Goliat
Other combinations of connections.
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| Filament |
Vf 2.2 Volts / If 17.5 Ampere / Direct / Specified voltage AC/DC |
| Description |
This tube is listed on page 762 of the Fall 1929m issue of the Sears Roebuck catalog, along with a range of Silvertone receiving tubes. It is a quick starting half wave rectifier type suitable for charging accumulators. It was widely used for carging 6 volt car batteries, A radio batteries and a wide range of other applications. The tube is rated at a maximum average anode current of 5 to 6 amps. The anode is from a strong wire lead at the top of the bulb. The later GE equivalent is the 99X44 and the tube was made by many manufacturers, both in the US and Europe.
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| Information source |
Sears, Roebuck Catalogs (Silvertone) Fall 1929 issue - pages 762 and 763
- - Manufacturers Literature
-- Collector info (Sammler)
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