Antique radios, Old Time Radios
RH1
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Country:
Great Britain (UK)
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| Identical to |
RH1
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| First Source
(s) |
Oct.1927 : 70 Years of Radiotubes and V.
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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 7.5 Volts / If 1.2 Ampere / Direct / Specified voltage AC/DC |
| Description |
BTH Branded in 1927
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| Information source |
British Radio Valves - The Classic Years: 1926-1946 Supplement, p. 141
History of the British Radio Valve to 1940 Page 168
Taschenbuch zum Röhren-Codex 1948/49
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
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Just Qvigstad
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RH1: Miniwatt Livret de comparaison
Patrice Zeissloff
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2
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