7A7, Tube 7A7; Röhre 7A7 (7A7)

Antique radios, Old Time Radios

7A7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	PENTODE RF/IF-Stage Controlling (mu)

Tube ID = 2724


	previous \| next

Identical to	7A7 = 7A7E
Similar Tubes	6SK7 (other base) 6SK7GT (other base) 14A7 (Heater different) 7A7LM (other shape (e.g. bulb, size))
First Source (s)	09.Dec.1938 : Electron Tube Registration List
Predecessor Tubes	6K7G 6K7GT 6SK7 6SK7GT
Successor Tubes	6BA6 6BJ6 6BD6

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 /
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

scc
Christian Schaufelberger

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models

2= 1936?? ; 1= 1936? ; 1= 1936 ; 1= 1938 ; 3= 1939?? ; 1= 1939? ; 10= 1939 ; 2= 1940?? ; 28= 1940 ; 3= 1941?? ; 1= 1941? ; 59= 1941 ; 4= 1942?? ; 13= 1942 ; 2= 1943? ; 3= 1946?? ; 13= 1946? ; 12= 1946 ; 7= 1947?? ; 7= 1947? ; 32= 1947 ; 7= 1948?? ; 5= 1948? ; 57= 1948 ; 2= 1949?? ; 12= 1949? ; 27= 1949 ; 3= 1950?? ; 7= 1950? ; 2= 1950 ; 11= 1951?? ; 2= 1951? ; 2= 1951 ; 2= 1952?? ; 4= 1952? ; 1= 1959 ;

Number of Models with this tube 350

No further Information for

7A7

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]

rmXorg-08

About Radiomuseum.org

02DecX