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VR75

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ID = 12282
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Voltage Regulator, single   Power-supply 
Identical to VR75 = 75С5-30

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ua)
Filament
Information source Taschenbuch zum Röhren-Codex 1948/49   
  vr75.png
  VR75: HP Manual 335B
Heinz Höger
 
h_tungsram_vr75_front.jpg
VR75: Tóth Ferenc
Sandor Selyem-Tóth

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vr75_sock.png
VR75: Ratheiser RTH,3.Aufl.,1964
Egon Penker

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vr75daten.png
VR75: Röhren-Handbuch von Ludwig Ratheiser
Heinz Höger

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from Just Qvigstad

Usage in Models 1= 1949 ; 2= 1950?? ; 2= 1951 ; 1= 1952? ; 1= 1957?? ; 1= 1960?? ; 1= 1962? ; 2= 1962 ; 1= 1964

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12


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