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20D1

Information - Help 
ID = 37112
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Double Diode   Detector 
Identical to 20D1

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 9.5 Volts / If 0.2 Ampere / Indirect / Series, AC/DC
Description Vin <175 rms; Ia <9mA mean. 
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a_20d1.jpg
20D1: FC
Frank Cuffe

 

from Just Qvigstad

Usage in Models 2= 1949 ; 1= 1950 ; 6= 1951 ; 5= 1952 ; 15= 1953 ; 7= 1954 ; 2= 1955

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):38


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