Antique radios, Old Time Radios
B_Moorhead-Europe
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Country:
United States of America (USA)
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| Identical to |
B_Moorhead-Europe
= F_Moorhead
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| Similar
Tubes |
Other base:
B_Moorhead-Shaw
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| First year |
1919
Saga of the Vacuum Tube, Tyne page 172
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| 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 |
Family - according to Tyne: Type A is similar to SE-1444, also with hard vacuum for amplification. Type B is a similar tube, but with a low vacuum for operation as a detector with 18-40 volts on the anode. Type C is similar to Type A, except that the grid is constructed of 22 turns of molybdenum wire with a pitch of 0.3 inch, instead of nickel - and for anode voltages of 80 - 500 volts. Type D is the unbased Electron Relay (ER) previously made by Moorhead. Type E is the British standard Type R, similar to Type A, but with spherical bulb and European standard four-pin base. Type F is similar to Type E, but with a low vacuum like the Type B. Type G is similar to Type C, but has a spherical bulb and an European standard four-pin base. It is the same as the British standard Type B tube.
The base on this tube was made by the Shaw Insulator Company, which was associated with Moorhead Laboratories
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
x 110 x 54 mm / x 4.33 x 2.13 inch |
| Information source |
Saga of the Vacuum Tube, Tyne page 172
-- Collector info (Sammler)
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B_Moorhead-Europe: Fin Stewart
Fin Stewart
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Just Qvigstad
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