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4R-HH2

Information - Help 
ID = 31593
       
Country:
Japan
Brand: Common type Japan tube/semicond.
Tube type:  Double Triode 
Identical to 4R-HH2

Base Noval, 9 pin miniature (USA pico-9) B9A
Filament Vf 4.2 Volts / If 0.6 Ampere / Indirect
Information source - - -   
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  4r_hh2.png
  4R-HH2: DE MI COLECION
Justo Puertas-Paule
 
4rhh2.jpg
4R-HH2: WS
Werner Schaffner

 

from Just Qvigstad

Usage in Models 1= 1965??

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


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