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AC2/PenDD

Information - Help 
ID = 10909
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Double Diode-Pentode   Power/Output 
Identical to AC2/PenDD = PT4D
Similar Tubes
Heater different:
  PenDD61

Base British-7-Pin, old (M7A) (Codex=Nh) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Indirect / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip
54 x 150 x mm / 2.13 x 5.91 x inch
Information source History of the British Radio Valve to 1940   p. 148 & 190
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

163.png AC2/PenDD: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
ac2pendd.png
AC2/PenDD: own collection
Peter den Boer

Usage in Models 1= 1934? ; 10= 1934 ; 1= 1935?? ; 9= 1935 ; 1= 1936? ; 12= 1936 ; 1= 1937? ; 14= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):49

Collection of

 
ac2pendd_mazda.jpg

AC2/PenDD
 

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