Antique radios, Old Time Radios
MR7A
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Country:
Great Britain (UK)
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| Identical to |
MR7A
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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 25 Ampere / Direct / Specified voltage AC/DC |
| Description |
Anode volts 10 kv, Pd <1000 W, Ri 800 Ω
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Dimensions (WHD)
incl. pins / tip |
180 x 450 x mm / 7.09 x 17.72 x inch |
| Information source |
-- Collector info (Sammler) Banneitz, TB der drahtl. Telephonie u.Telegr. 1927
The Saga of Marconi Osram Valve Pages 80, 127, 202
- - Manufacturers Literature
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MR7A: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
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