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PT625

Information - Help 
ID = 25482
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Vacuum Pentode   Power/Output 
Identical to PT625
Similar Tubes
Normally replaceable-slightly different:
  PX240
First Source (s)
1929 : Saga of the Vacuum Tube, Tyne p.386

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 6 Volts / If 0.25 Ampere / Direct / Battery =
Information source -- Collector info (Sammler)   Mullard Master Valve Catalogue 1936-37
 
pt625_nr2.jpg
PT625: Own collection
Georges Van Campenhout

 
pt625_data.png
PT625: MARCONI VALVES MANUAL
Jose Casas-Avalos


from Just Qvigstad

Usage in Models 3= 1930 ; 1= 1931? ; 6= 1931 ; 2= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12


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