Antique radios, Old Time Radios

14Q7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Pentagrid-Converter (Heptode) Pentagrid (new) Controlling (mu)

Tube ID = 2645


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Identical to	14Q7
Similar Tubes	Heater different: 7Q7 Other base: 12SA7
First Source (s)	01.Mar.1940 : Electron Tube Registration List
Predecessor Tubes	12A8G 14B8
Successor Tubes	12BE6

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=Wd)
Was used by	Radio/TV-reception etc.
Filament	Vf 12.6 Volts / If: 0.15 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 Karel De Reus

C.M.
Mario Coelho

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)	1= 1940 ; 2= 1941? ; 5= 1941 ; 3= 1942?? ; 3= 1942? ; 8= 1942 ; 6= 1945? ; 3= 1945 ; 2= 1946?? ; 9= 1946? ; 96= 1946 ; 16= 1947?? ; 4= 1947? ; 49= 1947 ; 2= 1948?? ; 1= 1948? ; 51= 1948 ; 4= 1949?? ; 2= 1949? ; 15= 1949 ; 6= 1950?? ; 11= 1951?? ; 3= 1952?? ; 3= 1953?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 305

No further Information for

14Q7

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