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275A

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ID = 25399
       
Country:
United States of America (USA)
Brand:
Tube type:  Triode, vacuum   Power/Output 
Identical to 275A
Predecessor Tubes 252A  

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 1.2 Ampere / Direct / Specified voltage AC/DC
Information source Babani, International Radio Tube Encyclopaedia   W.E.Greybar catalog 1933

275as.gif 275A: KoBi
Konrad Birkner † 12.08.2014

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Just Qvigstad
275ad.png
275A: KoBi
Konrad Birkner † 12.08.2014

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Usage in Models 1= 1929??

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

Collection of

 
275a_st.jpg

275A
 

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