7S7, Tube 7S7; Röhre 7S7 (7S7)

Antique radios, Old Time Radios

7S7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Triode-Heptode Frequency converter Controlling (mu)

Tube ID = 2108


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Identical to	7S7 = X148
Similar Tubes	14S7 (Heater different)
First Source (s)	19.May.1941 : Electron Tube Registration List
Predecessor Tubes	7J7 6K8GT

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=W)
Was used by	Radio/TV-reception etc.
Filament	-: Indirect / -: Parallel / series AC/DC / If: 0.3 Ampere / Vf 6.3 Volts /
Dimensions (WHD)	30 x 71 x mm / 1.18 x 2.80 x inch
Weight	21 g / 0.74 oz
Tube prices	0 Tube prices (visible for members only)
Literature	Essential Characteristics, GE 1973 Data SYLVANIA Tubes book Taschenbuch zum Röhren-Codex 1948/49


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

P.ST
Peter Steffen

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Radio Tubes Technical Manual
Didier Tholomier

Usage in Models	1= 1940?? ; 10= 1942 ; 3= 1945? ; 1= 1945 ; 1= 1946?? ; 16= 1946 ; 1= 1947?? ; 1= 1947? ; 25= 1947 ; 1= 1948? ; 24= 1948 ; 1= 1949?? ; 2= 1949? ; 8= 1949 ; 1= 1950?? ; 2= 1950? ; 22= 1950 ; 4= 1951? ; 7= 1951 ; 1= 1952? ; 2= 1952 ; 1= 1953?? ; 1= 1953? ; 5= 1953 ; 1= 1954?? ; 3= 1955?? ;
Number of Models with this tube 145

Further Information for

7S7

7S7 (30.07.2005) Willy De Grande	Clicks: 391 Replies: 1
Beschreibung : Triode - Heptode-converter : 7S7 auser/Uf 6.3V/= 14S7/Uf12.6v/ Changeur de frequence triode-heptode. Data SYLVANIA Tubes book Abmessungen : Dia. 30 mm / L (u.a) 71 mm. More ...

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