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U404

Information - Help 
ID = 18990
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to U404 = U118

Base Rimlock base B8A
Filament Vf 40 Volts / If 0.1 Ampere / Indirect / Series, AC/DC /
Description 250V rms, 750V piv; I<90 mA mean with C=50 microF. 
Text in other languages (may differ)
Literature - - Manufacturers Literature   1948

 
mazda_u404.jpg
U404: Howard Craven
Howard Craven

 
206.png
U404: Datenblatt
Wolfgang Bauer

 
u404data1.png
U404: own collection
Peter den Boer


Usage in Models 1= 1947? ; 4= 1947 ; 2= 1948?? ; 3= 1948? ; 3= 1948 ; 4= 1949 ; 1= 1950?? ; 1= 1950? ; 3= 1950 ; 1= 1951?? ; 3= 1951 ; 1= 1952? ; 3= 1952 ; 1= 1953?? ; 3= 1953 ; 1= 1954? ; 1= 1955 ; 1= 1956 ; 1= 1957

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):38


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