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OBC1

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ID = 43023
       
 
   
Tube type:  Double Diode-Triode   Audio Frequency 
Identical to OBC1

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament If 0.15 Ampere / Indirect / Specified voltage AND current AC/DC
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Just Qvigstad
Usage in Models 1= 1947?? ; 1= 1950??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
obc1_rm.jpg

 

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