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XL1.5

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ID = 23079
       
Country:
Great Britain (UK)
Brand: Hivac Ltd.; Harrow-on-the-Hill
Developer: Hivac Ltd.; Harrow-on-the-Hill 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to XL1.5 = VT177_GPO = CV1720

Base Midget 4 pin Hivac (Sm4)
Was used by Radio/TV-reception etc.
Filament Vf 1.5 Volts / If 0.066 Ampere / Direct / Specified voltage AND current AC/DC
Description

Typical operation:- Va 50V; Ia 0.7mA; Vg -1.0V; Ra 20k; gm 0.6mA/V
Sm4 base.

 
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 166-167
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

hivac~~10.png XL1.5: Fin Stewart
Fin Stewart


Just Qvigstad

Collection of

 
xl1.5.jpg

XL1.5
 

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