Antique radios, Old Time Radios
1B59
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Country:
Worldwide
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| Identical to |
1B59
= R1130B
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| First Source
(s) |
11.Mar.1946 : Electron Tube Registration List 477
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Filament |
--/-- |
| Description |
Crater-type glow modulator; 5 to 35mA, 75mA pk. 5 to 15000Hz modulating frequency.
Operating Voltage <150 ; Luminous intensity >0.3 candela, 110 candela/square inch.
Used in early facsimile equipment, about 1940.
Sylvania and English Electric Valves (EEV) are known manufacturers.
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| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
- - Manufacturers Literature
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Just Qvigstad
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1B59: Manufacturer's Literature
Emilio Ciardiello
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Collection of
Collection of a member from D |
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