Antique radios, Old Time Radios
Radio-Secteur
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Country:
France
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| Identical to |
Radio-Secteur
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| First year |
Nov.1923
Le Génie civil, 26.01.1924, p.92
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| First Source
(s) |
1922 : Saga of the Vacuum Tube, Tyne p. 404, 405
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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 2.3 Volts / If 2.2 Ampere / Direct / Specified voltage AC/DC |
| Description |
This was the first AC tube from Métal. Made in 1922 and very similar to the TM tube in design..
Unsatisfacory because of the hum when AC heated
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Dimensions (WHD)
incl. pins / tip |
55 x 116 x mm / 2.17 x 4.57 x inch |
| Weight |
62 g / 2.19 oz |
| Information source |
Saga of the Vacuum Tube, Tyne page 404, 405
L'ABCDaire des lampes de TSF des jeunes années p. 15
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Just Qvigstad
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Radio-Secteur: own collection
Peter den Boer
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
Collection of
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