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A4GDR2

Information - Help 
ID = 22650
       
Country:
Spain
Brand: Castilla; Madrid
Tube type:  OCTODE   Controlling (mu) 
Identical to A4GDR2
Similar Tubes
Normally replaceable-slightly different:
  AK2

Filament
Information source - - -   
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a4gdr2_so.png
A4GDR2: rtt
Michael Schlör

 

Usage in Models 1= 1941

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

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