radiomuseum.org

 
Please click your language flag. Bitte Sprachflagge klicken.

U31

Information - Help 
ID = 3207
       
Country:
Great Britain (UK)
Brand: MO Valve Co. Ltd.; GB
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to U31

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=K)
Filament Vf 26 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Description Va<250 rms. Ia <100mA mean. (0.7EUR in 1938) 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
45 x 122 x mm / 1.77 x 4.80 x inch
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   
  u31_app.png
  U31: Manufacturer's Literature
Emilio Ciardiello
 
u31_2~~1.jpg
U31: FC
Frank Cuffe

 
s_259_g_1.gif
U31: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
u31_1.png
U31: Manufacturer's Literature
Emilio Ciardiello


Usage in Models 1= 1937? ; 3= 1937 ; 1= 1938?? ; 1= 1938? ; 3= 1938 ; 1= 1939? ; 3= 1939 ; 12= 1940 ; 1= 1941?? ; 1= 1941 ; 1= 1946 ; 1= 1947?? ; 1= 1947? ; 3= 1947 ; 1= 1948?? ; 1= 1948? ; 1= 1948 ; 1= 1949? ; 3= 1949 ; 8= 1950 ; 1= 1951? ; 3= 1951 ; 2= 1952

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):54


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