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QP230

Information - Help 
ID = 11583
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Double Pentode   Power/Output 
Identical to QP230

Base British-7-Pin, old (M7A) (Codex=No)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.3 Ampere / Direct / Battery =
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1937
  qp230_sch.png
  QP230: KoBi
Konrad Birkner † 12.08.2014
 
qp230.jpg
QP230: FC
Frank Cuffe

 
547_2.png
QP230: Telefunken Werkstattbuch
Wolfgang Bauer

 
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QP230: own collection
Peter den Boer


Usage in Models 1= 1936?? ; 3= 1936 ; 5= 1937 ; 7= 1938 ; 1= 1939

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):17


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