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CV1704

Information - Help 
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 (1933) Top contact with a cap
Was used by Military and/or Government
Filament Vf 2.5 Volts / If 1 Ampere / Indirect / Parallel / series AC/DC
Literature 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

 

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