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N78

Information - Help 
ID = 19329
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Vacuum Pentode   Power/Output 
Identical to N78 = 6BJ5 = CV3711
Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.64 Ampere / Indirect / Specified voltage AC/DC
Description Pa <9W, Va <250. gm 10.5mA/V 
Dimensions (WHD)
incl. pins / tip		 19 x 70 x mm / 0.75 x 2.76 x inch
Tube prices 1 Tube prices (visible for members only)
Information source - - Manufacturers Literature   GEC April 1952
Tube Tester Data Avo CT160
6bj5~~1.png
N78: Schematic from my documents.
Pier Antonio Aluffi     More ...
n78_so.png N78: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad 		n78_1.png
N78: own collection
Peter den Boer † 2025
More ...
Usage in Models 3= 1950?? ; 1= 1950? ; 5= 1950 ; 1= 1951?? ; 2= 1951? ; 19= 1951 ; 1= 1952?? ; 1= 1952? ; 5= 1952 ; 5= 1953? ; 4= 1953 ; 1= 1954?? ; 9= 1954? ; 10= 1954 ; 1= 1955?? ; 4= 1955? ; 7= 1955 ; 2= 1956 ; 1= 1957?? ; 3= 1957? ; 3= 1959?? ; 3= 1959?
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):91

Collection of

John Hupse † 28.9.20 (NL)
Emilio Ciardiello (I)
Collection of a member from FIN
Danko Tkalec (HR)
Jan Peter Brömme (D)
Georg Richter (D)
 
n78_tube.jpg

N78
 
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