Antique radios, Old Time Radios

6D7

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Vacuum Pentode Universal

Tube ID = 3549


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Identical to	6D7
Similar Tubes	Other base: 6J7G; 77 Other base and other base diagram: 57
First Series	1933 Radios von gestern page 231 (Base for 2A7 and 6D7)
Predecessor Tubes	57 77
Successor Tubes	6J7 6J7G

Base	7-Pin-Base U7A = small, old, USA (Codex=Mf) 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

ebay #260455237944
Meyer Rochwerger

Telefunken Werkstattbuch
Wolfgang Bauer

Usage in Models (calculation each 25th of the month)	3= 1933? ; 3= 1933 ; 1= 1934?? ; 1= 1934? ; 1= 1935?? ; 2= 1936?? ; 1= 1936? ; 2= 1936 ; 1= 1937? ; 2= 1937 ; 1= 1938? ; 2= 1938 ; 1= 1939?? ; 1= 9999 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 22

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6D7

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