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Unknown_photo_res

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ID = 70538
       
 
   
Tube type:  Photo resistor   Detector 
Identical to Unknown_photo_res

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament


Just Qvigstad
Usage in Models 1= 1970??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of

 
unkn_photo_resistor_2.jpg

Unknown_photo_res
 

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