Antique radios, Old Time Radios
LS5_GE
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Country:
Great Britain (UK)
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| Identical to |
LS5_GE
= VT25_GPO
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| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
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| Filament |
Vf 4.5 Volts / If 0.82 Ampere / Direct / Battery = |
| Description |
The telephone network in Great Britain continued to grow. By 1926 there were twenty-six repeater stations with total of 670 repeaters in service. One of the standard amplifying valve used in such repeaters, designed by the Post Office as "Valve Thermionic (VT) No. 25". It was made by General Electric Company Ltd., London and was a further development of the R valve used in radio applications.
It was used in radio receivers as an output valve under the designation LS5.
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| Information source |
Saga of the Vacuum Tube, Tyne page 367, 368
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Just Qvigstad
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