Antique radios, Old Time Radios

1A7G

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

Tube ID = 2617


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Identical to	1A7G
Similar Tubes	Normally replaceable-slightly different: DK32_Mullard
First Source (s)	10.Jun.1938 : Electron Tube Registration List
Successor Tubes	1R5

Base	Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ut)
Was used by	Radio/TV-reception etc.
Filament	Vf 1.4 Volts / If: 0.05 Ampere / -: Direct / -: Battery = /
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

Radio-Tubes, Societe des Editons Radio
Júlio Branco

Telefunken Werkstattbuch
Wolfgang Bauer

Grundig Rö-Tabu, zum M1, Band 3, 1948
Anonymous 15 Collector

Usage in Models (calculation each 25th of the month)	1= 1933?? ; 1= 1935?? ; 1= 1937? ; 2= 1937 ; 2= 1938?? ; 5= 1938? ; 34= 1938 ; 24= 1939?? ; 27= 1939? ; 185= 1939 ; 17= 1940?? ; 15= 1940? ; 100= 1940 ; 28= 1941?? ; 8= 1941? ; 19= 1941 ; 17= 1942?? ; 6= 1942? ; 7= 1942 ; 6= 1945? ; 1= 1946?? ; 1= 1946? ; 5= 1946 ; 1= 1947?? ; 1= 1947? ; 1= 1947 ; 3= 1948?? ; 1= 1959? ; 1= 9999? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 520

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1A7G

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