Antique radios, Old Time Radios
GL5720
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Country:
United States of America (USA)
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| Identical to |
GL5720
= FG33
= 5720
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| First year |
30.Apr.1948
Electron Tube Registration List
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX)
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| Was used by |
Industrial |
| Filament |
Vf 5 Volts / If 4.5 Ampere / Direct |
| Description |
Anode voltage 1000, grid voltage +10
Gas-mercury triode thyratron with a positive control characteristic. This offers the advantage of a tube that will operate only with a positive voltage on the grid. It is ideally suited for applications which require that no current flows in the absence of grid excitation.
Made by GE, Hytron, Philips, Westinghouse; also produced in Italy by Fivre.
Registered by GE as 5720 and marketed as GL5720.
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| Information source |
- - Manufacturers Literature
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Just Qvigstad
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GL5720: Manufacturers documentation
Bruce Morgenstern
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