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R222

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ID = 37143
       
Country:
France
Brand: La Radiotechnique (RT); Paris, Suresnes
Tube type:  Vacuum Pentode   Universal 
Identical to R222
First Source (s)
Mar.1946 : L'Histoire Singulière du Tube Radio; G. Duperray 2009

Base Loctal-8, B8G (Sylvania, 1938)
Filament Vf 6.3 Volts / If 0.43 Ampere / Indirect / Specified voltage AC/DC
Description

Wide band Penthode with double cathode connection.

 
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Just Qvigstad
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R222: Technique de l'ingénieur
Patrice Zeissloff

Collection of

 
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R222
 

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