Antique radios, Old Time Radios
U4
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Country:
Great Britain (UK)
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Brand:
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MO Valve Co. Ltd.; GB |
| Tube type: |
Half-Wave Vacuum Rectifier Power-supply |
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Ca. 1925 up to 1945 rare. |
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| Identical to |
U4
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| First Source
(s) |
1926 : 70 Years of Radiotubes and V.
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| Base |
Europe 3-Pin B3 (Eu H)
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| Filament |
Vf 6 Volts / If 0.25 Ampere / Direct / Specified voltage AC/DC |
| Description |
15mA mean current at 220Vrms.
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| Information source |
- - Manufacturers Literature Pamphlet 243
- - Manufacturers Literature Marconi catalog No. 520, Sept. 1928
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Just Qvigstad
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U4: own collection
Peter den Boer
More ...
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Collection of
Collection of a member from D |
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