Antique radios, Old Time Radios
R_Moorhead
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.7 Ampere / Direct / Battery = |
| Description |
Operated at 4 volts the tube has a life of 800 hours. The R was supplied to the British Army and was a general purpose vacuum triode similar in design to the French TM and to the British R. In the early productions the Moorhead tube used a spherical bulb and a vertical plate assembly, while the British R used a horizontal plate structure. The tube is fitted with a base made by the Shaw Insulator Company, who were associated with Moorhead Laboratories
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
54 x 109 x 28 mm / 2.13 x 4.29 x 1.10 inch |
| Weight |
41 g / 1.45 oz |
| Tube prices |
2 Tube prices (visible for members
only)
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R_Moorhead: KoBi
Konrad Birkner † 12.08.2014
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Just Qvigstad
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Collection of
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