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VR90

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ID = 12284
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Voltage Regulator, single 
Identical to VR90 = 0B3

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ua)
Filament
Information source Taschenbuch zum Röhren-Codex 1948/49   

anwendung_vr_90.png
VR90: GE glow Tubes Handbook
Aldo Patriarca

vr90_so.png VR90: ARRL Handbook 1972
Anonymous 10 Collector

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Just Qvigstad
vr_90_1.png
VR90: GE Glow Tubes Handbook
Aldo Patriarca

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Usage in Models 1= 1938 ; 1= 1951

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
vr90.jpg

VR90
 

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