Antique radios, Old Time Radios
VT-18
| Base |
Jumbo 4-pin bayonet (1918)
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| Was used by |
Military and/or Government |
| Filament |
Vf 10 Volts / If 6.5 Ampere / Direct |
| Description |
This tube is a 50 Watt "Pliotron" transmitting type made for the US Army by GE in 1918. Original tubes had a large base (Jumbo 4 pin) which was made for GE by the Shaw Insulator Company. In the early part of 1919 the base was made by GE and had a mica insulator disc to support the base pins. The tube is mentioned on page 38 of "The Story of Electronics Development at the General Electric company".
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Dimensions (WHD)
incl. pins / tip |
x 154 x 52 mm / x 6.06 x 2.05 inch |
| Information source |
Saga of the Vacuum Tube, Tyne page 150, 151
- - Manufacturers Literature
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VT-18: Fin Stewart
Fin Stewart
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Just Qvigstad
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Collection of
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