Antique radios, Old Time Radios
GMU4
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Country:
Great Britain (UK)
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| Identical to |
GMU4
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| Similar
Tubes |
Other base and other heater:
GMU2
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| First Source
(s) |
Oct.1964 : - - Manufacturers Literature
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| Base |
Edison giant, E40 = 40 mm-Goliat
Top contact with a cap.
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| Filament |
Vf 4 Volts / If 7 Ampere / Direct / Specified voltage AC/DC |
| Description |
13kV 5A peak, 1.25A average.
Mixed Mercury Vapour and inert gas to achieve faster warm-up time.
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Dimensions (WHD)
incl. pins / tip |
60 x 250 x mm / 2.36 x 9.84 x inch |
| Information source |
- - Manufacturers Literature
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Just Qvigstad
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| Data Compliance |
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