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R_Penton

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ID = 28719
       
 
   
Tube type:  Triode, vacuum   Universal 
Identical to R_Penton = R_England = TM
First year 1924 ?? Saga of the Vacuum Tube, Tyne page 393

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.6 Ampere / Direct / Battery =
Description

Hersteller: Penton Engineering Co., Great Britain

 
Information source -- Collector info (Sammler)   
Saga of the Vacuum Tube, Tyne   
 
penton_early_r_nvm.jpg
R_Penton: National Valve Museum
Fin Stewart

 
1_56~~2.png
R_Penton: Telefunken Werkstattbuch
Wolfgang Bauer

 

from Just Qvigstad


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