Antique radios, Old Time Radios

6A7

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

Tube ID = 2687


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Identical to	6A7 = Ut6A7 = Ut-6A7 = 6A7E
Similar Tubes	Other shape (e.g. bulb type): 6A7S Normally replaceable-slightly different: G6A7 Heater different: 2A7 Other base: 6A7_Octal; 6A8G Multiple differences or of other kind: MH1118; UPG105
First Series	1933 -- Collector info (Sammler)
First Source (s)	Mar.1933 : The AWA Review Vol. 7, 1992.
Successor Tubes	6A8 6A8G 6A8GT

Base	7-Pin-Base U7A = small, old, USA (Codex=Mh) Top contact with a cap
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

Collection JR
Jacob Roschy

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)

1= 1931 ; 1= 1932?? ; 12= 1932? ; 1= 1932 ; 24= 1933?? ; 75= 1933? ; 183= 1933 ; 59= 1934?? ; 99= 1934? ; 440= 1934 ; 111= 1935?? ; 121= 1935? ; 604= 1935 ; 113= 1936?? ; 116= 1936? ; 551= 1936 ; 135= 1937?? ; 78= 1937? ; 510= 1937 ; 196= 1938?? ; 61= 1938? ; 358= 1938 ; 116= 1939?? ; 38= 1939? ; 130= 1939 ; 87= 1940?? ; 18= 1940? ; 62= 1940 ; 63= 1941?? ; 3= 1941? ; 4= 1941 ; 48= 1942?? ; 17= 1942? ; 6= 1942 ; 1= 1943?? ; 2= 1943 ;

Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 4499

Further Information for

6A7

6A7 (6A7) (14.08.2007) Reinhard Hanschke	Clicks: 385 Replies: 0
Neupreis 1938: 57,00 FFR. Lit.: Catalog der Fa. MANUFRANCE (MF) von 1938.

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