Antique radios, Old Time Radios

E80CF

Country:	Europe		Brand:	Common type Europe
			Tube type:	Triode-Pentode Universal

Tube ID = 4047


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Identical to	E80CF = 7643
Similar Tubes	Other class quality (otherwise equal): 6BL8; ECF80
First Source (s)	Nov.1958 : -- Original-techn. papers. Apr.1960 : Funkschau (FS) 1960 Heft 7

Base	Noval, B9A
Was used by	Technology / Measurement
Filament	Vf 6.3 Volts / If: 0.33 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Description	Special Quality Valve. Designed to maintain stable characteristics even when operated under cut-off conditions.
Tube prices	0 Tube prices (visible for members only)

MS
Martin Steyer

Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

Telefunken Taschenbuch 1971
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	1= 1959?? ; 1= 1959? ; 1= 1960?? ; 1= 1960? ; 1= 1962?? ; 2= 1963?? ; 1= 1963? ; 1= 1964?? ; 1= 1965? ; 1= 1966? ; 1= 1967?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 12

No further Information for

E80CF

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