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CV1721

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ID = 66160
       
Country:
Great Britain (UK)
Brand: Hivac Ltd.; Harrow-on-the-Hill
Developer: Hivac Ltd.; Harrow-on-the-Hill 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to CV1721 = CV176 = XP1.5 = VT178_GPO

Base Midget 4 pin Hivac (Sm4)
Was used by Military and/or Government
Filament Vf 1.5 Volts / If 0.066 Ampere / Direct / Battery =
Description

This tube designed for last audio stage

Grid voltage -4.5

 
Dimensions (WHD)
incl. pins / tip
x 63 x 16 mm / x 2.48 x 0.63 inch
Weight 13 g / 0.46 oz
Information source Babani, International Radio Tube Encyclopaedia   Pages 78-79
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Pages 114-115

hivac~~13.png CV1721: Fin Stewart
Fin Stewart


Just Qvigstad
 

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