Antique radios, Old Time Radios
2501A3
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Country:
United States of America (USA)
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| Identical to |
2501A3
= CV739
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| First Source
(s) |
Nov.1941 : Electron Tube Registration List
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| Base |
7-Pin-Base-general, old, USA
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| Filament |
Vf 2.5 Volts / If 2.1 Ampere / Half indirect |
| Description |
3" medium-persistance green fluorescent CRT intended for oscillographic applications. Electrostatic focus and deflection.
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| Information source |
-- Original-techn. papers. Electronics, Jan. 1942
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Collection of
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