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ACS2Pen

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ID = 19781
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Developer: Mazda = Valve (Tube) brand GB (see also France) 
Tube type:  Vacuum Pentode   Power/Output   Controlling (mu) 
  Ca. 1925 up to 1945 rare.
Identical to ACS2Pen = VT106_GPO = CV1674
Similar Tubes
Normally replaceable-slightly different:
  ACSP1
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
Base British-7-Pin, old (M7A) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Babani, International Radio Tube Encyclopaedia   Pages 48 & 49
History of the British Radio Valve to 1940
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
s_400_g_15.gif ACS2Pen: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20
More ...
Just Qvigstad 		mazda_acs2pen_datasheet.gif
ACS2Pen: Mazda DataSheet
Franz Scharner
More ...
Usage in Models 2= 1933 ; 1= 1934
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

Santiago Lopez Perez (E)
 
acs2pen.jpg

 
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