Antique radios, Old Time Radios

44

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

Tube ID = 2675

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Identical to	44 = 144
Similar Tubes	Normally replaceable-slightly different: 39; 39/44
First Source (s)	Apr.1932 : 70 Years of Radiotubes and V.
Successor Tubes	39/44

Base	UY-Base, 5 Pins (USA, April 1927) (Codex=Hfo)
Filament	Vf 6.3 Volts / If: 0.3 Ampere / -: Indirect / -: Parallel / series AC/DC /
Tube prices	0 Tube prices (visible for members only)
Literature	Taschenbuch zum Röhren-Codex 1948/49

44: My personal collection
Robert Sarbell

44: ARRL Handbook 1972
Michael Schlör

Usage in Models	1= 1932? ; 62= 1932 ; 2= 1933? ; 46= 1933 ; 4= 1934?? ; 1= 1934? ; 20= 1934 ; 10= 1935?? ; 5= 1935? ; 12= 1935 ; 2= 1936?? ; 4= 1936? ; 1= 1936
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 170

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