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56 Country:  United States of America (USA)      Brand:  Common type USA    Tube type:  Triode, vacuum   Universal  Tube ID = 2680 previous  |  next Identical to 56 = A256 = G56 = ER56 = VT-56 Similar Tubes Normally replaceable-slightly different:  38056 Heater different:  76 Other base and other base diagram:  6P5G First Source (s) 1932 : The AWA Review Vol. 7, 1992. Jun.1932 : -- Collector info (Sammler) Predecessor Tubes 27   Successor Tubes 76   6P5G   Base UY-Base, 5 Pins (USA, April 1927) (Codex=H) Was used by Radio/TV-reception etc. Filament Vf 2.5 Volts / If: 1 Ampere / -: Indirect / -: 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

KoBi Konrad Birkner   Variants Telefunken Werkstattbuch Wolfgang Bauer   Sylvania Technical Manual Peter Hoddow

Usage in Models (calculation each 25th of the month)   1= 1930?? ; 1= 1930? ; 21= 1931? ; 11= 1931 ; 14= 1932?? ; 66= 1932? ; 381= 1932 ; 34= 1933?? ; 44= 1933? ; 296= 1933 ; 31= 1934?? ; 30= 1934? ; 104= 1934 ; 13= 1935?? ; 9= 1935? ; 51= 1935 ; 13= 1936?? ; 3= 1936? ; 11= 1936 ; 3= 1937?? ; 7= 1937 ; 2= 1938?? ; 1= 1938 ; 1= 1939?? ; 1= 1939? ; 1= 1939 ; 1= 1940?? ; 1= 1940? ; 2= 1940 ; 3= 1949?? ; 3= 9999 ; Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   1160

Variants
A. De Poi's collection Alessandro De Poi	56*violet glass The 56 type tube used to be made in a distinctive violet glass by early FIVRE production. Although color is violet, these tubes are commonly referred and known as "red Fivre tubes". 03.Dec.2007 Alessandro De Poi

No further Information for 56

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