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U78

Information - Help 
ID = 18632
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to U78 = 6X4 = EZ90
Similar Tubes
Other class quality (otherwise equal):
  CV493
Heater different:
  Q/U78

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.6 Ampere / Indirect / Parallel, (AC/DC)
  u78.gif
  U78: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
u78_marconi_.jpg
U78: GR
Georg Richter

 
u78_so.jpg.png
U78: ARRL Handbook 1972
Michael Schlör

 
u78babanidoc.png
U78: Babani 1949-1951
Patrice Zeissloff


from Just Qvigstad

Usage in Models 1= 1950?? ; 4= 1950 ; 12= 1951 ; 1= 1952?? ; 5= 1952 ; 6= 1953? ; 2= 1953 ; 4= 1954? ; 2= 1954 ; 2= 1955?? ; 2= 1955? ; 4= 1955 ; 3= 1956 ; 3= 1959?? ; 3= 1959?

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

Collection of a member from FIN
Collection of a member from FIN

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