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PY31

Information - Help 
ID = 18625
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to PY31

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 17 Volts / If 0.3 Ampere / Indirect / Series, AC/DC
Description Va <1 kV piv, 250 rms; Ia < 125ma. 
Literature - - Manufacturers Literature   
  py31.gif
  PY31: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
py31.jpg
PY31: M.N.
Michael Niermann

 
py31_01.png
PY31: Manufacturer's Literature
Emilio Ciardiello


Usage in Models 1= 1945?? ; 3= 1948 ; 19= 1949 ; 1= 1950? ; 4= 1950 ; 3= 1951

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):31


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