Antique radios, Old Time Radios

7F8

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Double Triode VHF

Tube ID = 3558


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Identical to	7F8
Similar Tubes	Other class quality (otherwise equal): 7F8W Heater different: 14F8

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=Ue)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC /
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Taschenbuch zum Röhren-Codex 1948/49


	Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse Michael Schlör

J.B.
Jürgen Bauch

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)	1= 1936 ; 1= 1945 ; 9= 1946 ; 1= 1947?? ; 12= 1947? ; 22= 1947 ; 2= 1948?? ; 7= 1948? ; 65= 1948 ; 4= 1949?? ; 3= 1949? ; 15= 1949 ; 13= 1950?? ; 2= 1950? ; 8= 1950 ; 3= 1951?? ; 2= 1951? ; 6= 1951 ; 8= 1952?? ; 5= 1953?? ; 2= 1955 ; 2= 1965 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 193

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7F8

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