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Radio-Secteur

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ID = 49309
       
Country:
France
Brand: Métal; France (tubes)
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to Radio-Secteur
First year Nov.1923 Le Génie civil, 26.01.1924, p.92
First Source (s)
1922 : Saga of the Vacuumtube, Tyne p. 404, 405

Base Europe 4-Pin (A, 4A, B4, since 1914)
Was used by Radio/TV-reception etc.
Filament Vf 2.3 Volts / If 2.2 Ampere / Direct / Parallel, (AC/DC)
Description

This was the first AC tube from Métal. Made in 1922.

Unsatisfacory because of the hum when AC heated

 
Dimensions (WHD)
incl. pins / tip
55 x 116 x mm / 2.17 x 4.57 x inch
Weight 62 g / 2.19 oz
Literature Saga of the Vacuumtube, Tyne   page 404, 405
 
radiosecteursmall.jpg
Radio-Secteur: own collection
Peter den Boer

 
metalinlalmanachsmall.png
Radio-Secteur: own collection
Peter den Boer


Usage in Models 1= 1923 ; 2= 1924

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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