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AC4/Pen

Information - Help 
ID = 12509
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Beam Power Tube 
Identical to AC4/Pen
Similar Tubes
Normally replaceable-slightly different:
  ARP8 ; CV1326

Base British-7-Pin, old (M7A) (Codex=N)
Filament Vf 4 Volts / If 1.75 Ampere / Indirect / Parallel / series AC/DC
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1937
 
ac4pen_mazda_bild2.jpg
AC4/Pen
Anonymous 557 Collector

 
ac4penbase.png
AC4/Pen: own collection
Peter den Boer

 
ac4pen.png
AC4/Pen: own collection
Peter den Boer


Usage in Models 1= 1937? ; 6= 1937 ; 7= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):14


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