Radios antiguas y Radios de Colección
R_Moorhead_H
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Usada en |
Militaire et/ou Services Publics |
| Filamento |
Vf 4 Volt / If 0.7 Ampere / Direct / Battery = |
| Descripción |
A life of 800 hours was expected when filament was operated at 4 volts. During WWI Moorhead supplied European based vacuum triodes, marked as R type, to the British Army. British also designated these tubes as VT32.
The R_Moorhead_H was a general purpose vacuum triode with spherical bulb, horizontal electrodes and a visible R marking, similar to other British R types. This can be considered a transition from the early vertical electrode R_Moorhead to the later VT32_Moorhead, characterized by a quasi-cylindrical envelope.
The base of this tube was made by the Shaw Insulator Company, who were associated with Moorhead Laboratories.
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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
54 x 109 x 28 mm / 2.13 x 4.29 x 1.10 inch |
| Peso |
41 g / 1.45 oz |
| Literatura |
-- Collector info (Sammler)
Saga of the Vacuum Tube, Tyne Page 170
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R_Moorhead_H: Fin Stewart
Fin Stewart
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Just Qvigstad
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