radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

GPR120

Information - Help 
ID = 82792
       
Country:
Great Britain (UK)
Brand: PR (P.R.) Products; London
Tube type:  Triode, vacuum   Power/Output 
Identical to GPR120

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.3 Ampere / Direct / Battery =
Description

3000 Ohms,. amplification factor 4.5

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

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

b4_base_pins~~324.png GPR120: Fin Stewart
Fin Stewart


Just Qvigstad
 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

Data Compliance More Information