Antique radios, Old Time Radios

47

Country:	United States of America (USA)		Brand:	Common type USA
			Tube type:	Vacuum Pentode Power/Output

Tube ID = 2676


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Identical to	47 = P2 = 247 = PZ = UY-247 = A247 = VT-47 = PH247 = RES347 = CV1772 = VT47_USA = G47 = 247S = EY647 = F247 = Z-47
Similar Tubes	Normally replaceable-slightly different: 38047; 47E Other class quality (otherwise equal): 1610_RCA
First Series	1931 Radios von gestern
First Source (s)	Jun.1931 : -- Collector info (Sammler)
Successor Tubes	1932 2A5 42

Base	UY-Base, 5 Pins (USA, April 1927) (Codex=Hy)
Filament	Vf 2.5 Volts / If: 1.7 Ampere / -: Direct / -: Parallel, (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) Michael Schlör

Patrice ZEISSLOFF
Patrice Zeissloff

Telefunken Werkstattbuch
Wolfgang Bauer

Sylvania Technical Manual
Peter Hoddow

Usage in Models (calculation each 25th of the month)	4= 1929 ; 1= 1930?? ; 13= 1930? ; 4= 1930 ; 15= 1931?? ; 101= 1931? ; 488= 1931 ; 59= 1932?? ; 251= 1932? ; 584= 1932 ; 30= 1933?? ; 25= 1933? ; 128= 1933 ; 19= 1934?? ; 16= 1934? ; 52= 1934 ; 9= 1935?? ; 13= 1935? ; 39= 1935 ; 5= 1936?? ; 4= 1936? ; 7= 1936 ; 1= 1939?? ; 1= 1939? ; 2= 1942?? ; 1= 1948?? ; 3= 9999 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1875

No further Information for

47

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