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

VT28_GPO

Information - Help 
ID = 63039
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Triode, vacuum   Detector 
  <1925 very rare. ***
Identical to VT28_GPO = DE3 = B5

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Telephony
Filament Vf 2.8 Volts / If 0.06 Ampere / Direct
Description

Small triode used by the British Post Office in radio applications as a detector and amplifier. First made in 1923 by MOV and 1050 tubes manufactured.

 
Information source British Radio Valves - The Vintage Years: 1904-1925   Pages 84 and 134

b4~~14.png VT28_GPO: 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]
  
rmXorg