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CV1704

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ID = 65652
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to CV1704 = 57 = VT155_GPO

Base Europe 6-Pin B6 (Hx B) 1933 Top contact with a cap.
Was used by Military and/or Government
Filament Vf 2.5 Volts / If 1 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Babani, International Radio Tube Encyclopaedia   Pages 78 & 79
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Page 36

57_58.png CV1704: Fin Stewart
Fin Stewart


Just Qvigstad
 

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