Antique radios, Old Time Radios

7A6

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Double Diode Detector

Tube ID = 2991


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Identical to	7A6
Similar Tubes	Normally replaceable-slightly different: 5679 Other base and other base diagram: 6H6GT; EB34
First Source (s)	10.Jun.1938 : Electron Tube Registration List
Predecessor Tubes	6H6GT
Successor Tubes	6AL5

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=Wa)
Was used by	Radio/TV-reception etc.
Filament	Vf 6.3 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 Michael Schlör

EP
Egon Penker

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)	1= 1936 ; 1= 1939?? ; 11= 1939 ; 11= 1940 ; 9= 1941 ; 1= 1942?? ; 5= 1942? ; 15= 1942 ; 4= 1946?? ; 8= 1946 ; 1= 1947?? ; 11= 1947? ; 17= 1947 ; 3= 1948?? ; 2= 1948? ; 28= 1948 ; 7= 1949?? ; 4= 1949 ; 10= 1950?? ; 1= 1950? ; 2= 1950 ; 7= 1951?? ; 1= 1951? ; 5= 1952?? ; 3= 1953?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 168

No further Information for

7A6

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