Antique radios, Old Time Radios
P23_Arcturus
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Country:
United States of America (USA)
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| Identical to |
P23_Arcturus
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| Base |
SPECIAL TUBEBASE in general
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| Filament |
--/-- |
| Description |
Tubular glass bulb with 3-pin bakelite base. Caesium compound active surface.
Adverised in 1931 for operation into 500 to 1000 ohms impedances, for talking movies.
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Dimensions (WHD)
incl. pins / tip |
x x 53 mm / x x 2.09 inch |
| Information source |
- - Manufacturers Literature Electronics advertisement May 1931.
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