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GPR17

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ID = 82786
       
Country:
Great Britain (UK)
Brand: PR (P.R.) Products; London
Tube type:  Triode, vacuum   Detector 
Identical to GPR17

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.14 Ampere / Direct / Specified voltage AND current AC/DC
Description

20,000 Ohms, Amplification factor 17.5

The type number prefix for this tube is shown as PR in Wireless World, Nov. 27, 1929.

 
Information source Wireless World (The), London (WW, 79)   October 9, 1929 & November 27, 1929

b4_base_pins~~322.png GPR17: Fin Stewart
Fin Stewart


Just Qvigstad
 

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