Antique radios, Old Time Radios
4101D
Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE)
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Filament |
Vf 4 Volts / If 1 Ampere / Direct |
Description |
Tyne, p 369 quotes the filament current as 0.25A.
Used principally for telephony amplification by British Post Office.
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Tube prices |
3 Tube prices (visible for members
only)
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Information source |
Saga of the Vacuum Tube, Tyne page 367-369
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4101D: ARRL Handbook 1972
Anonymous 10 Collector
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Just Qvigstad
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4101D: own collection
Peter den Boer
More ...
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Collection of
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