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GU1

Information - Help 
ID = 30611
       
Country:
Great Britain (UK)
Brand: Osram-Valves GB (not MO-Valves)
Tube type:  Half-Wave Mercury-Vapor Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to GU1 = VT138_GPO = CV1623 = RG1/250
Similar Tubes
Normally replaceable-slightly different:
  CV1262
Different maximum ratings:
  GU50
Successor Tubes GU50  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Industrial
Filament Vf 4 Volts / If 3 Ampere / Direct / Parallel, (AC/DC)
Description

Va<1kV and Ia<250mA mean with 30s delayed application of HT.

 
Information source - - Manufacturers Literature   Osram wireless guide, 1931
Babani, International Radio Tube Encyclopaedia   Pages 278 & 279
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
  gu1.png
  GU1: Internet
Miguel Angel Trujillo-Rodriguez
 
gu1_bild2.jpg
GU1: Sammlung
Anonymous 557 Collector

 
gu1_so.png
GU1: rtt
Michael Schlör

 
gu1_spec.png
GU1: Osram wireless guide, 1931
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 1= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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