7B8, Tube 7B8; Röhre 7B8 (7B8)

Antique radios, Old Time Radios

7B8

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

Tube ID = 3732


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Identical to	7B8 = VT-208
Similar Tubes	6A8 (other base) 6A8GT (other base) 7B8LM (other shape (e.g. bulb, size))
First Source (s)	16.Feb.1939 : Electron Tube Registration List
Predecessor Tubes	6A8GT
Successor Tubes	7Q7

Base	Loctal-8, B8G (Sylvania, 1938) (Codex=We)
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

Röhrensammlung
Hermann Fleischanderl

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models	3= 1939?? ; 1= 1939? ; 5= 1939 ; 1= 1940?? ; 19= 1940 ; 1= 1941?? ; 1= 1941? ; 49= 1941 ; 13= 1942 ; 4= 1946? ; 2= 1946 ; 1= 1947?? ; 4= 1947? ; 2= 1947 ; 2= 1948? ; 10= 1948 ; 1= 1949?? ; 6= 1949? ; 4= 1949 ; 2= 1950?? ; 5= 1950? ; 4= 1951?? ; 2= 1951? ; 1= 1952?? ; 4= 1952? ;
Number of Models with this tube 147

No further Information for

7B8

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