Antique radios, Old Time Radios
MR4_MOV
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Country:
Great Britain (UK)
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| Identical to |
MR4_MOV
= VT11_GPO
= CV1611
|
| First year |
1922
Saga of the Vacuum Tube, Tyne page 381
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| First Source
(s) |
May.1919 : British Radio Valves - The Vintage Years: 1904-1925 p.127
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| Base |
Wires
Wires only.
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| Was used by |
Military and/or Government |
| Filament |
Vf 12.5 Volts / If 6.3 Ampere / Direct / Specified voltage AC/DC |
| Description |
Pa <300, Va <10,000, (RFJ). First made by Osram Lamp Works of GEC May 1919
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Dimensions (WHD)
incl. pins / tip |
120 x 255 x mm / 4.72 x 10.04 x inch |
| Information source |
- - Data from my own collection
Saga of the Vacuum Tube, Tyne Page 381
The Saga of Marconi Osram Valve
- - Manufacturers Literature
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MR4_MOV: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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