Antique radios, Old Time Radios
2512B9
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Country:
United States of America (USA)
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| Identical to |
2512B9
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| First Source
(s) |
Dec.1941 : Electron Tube Registration List
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| Base |
UY-Base, 5 Pins (USA, April 1927)
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| Filament |
Vf 2.5 Volts / If 2.1 Ampere / Half indirect |
| Description |
9" long-persistance green fluorescent CRT intended for oscillographic applications. Electrostatic focus and deflection. Deflection plates connected to four side caps. Typical operation: 1000V on A1, 3000V on A2, -120V grid cutoff.
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| Information source |
-- Original-techn. papers. Electronics, Feb. 1942
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Just Qvigstad
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