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SD20

Information - Help 
ID = 13005
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Diode-Tetrode   RF/IF-Stage 
Identical to SD20 = B2044

Base Europe 6-Pin B6 (Hx B) 1933 (Codex=Lc) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.18 Ampere / Indirect / Series, DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
sd20.jpg
SD20: own collection
John Koster

 

from Just Qvigstad

Usage in Models 1= 1933?

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


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