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A256

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ID = 25779
       
Country:
France
Brand: Visseaux / Télévisso; Lyon / Paris
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Triode, vacuum   Universal 
Identical to A256 = 56
First Source (s)
1932 : Vol. 7, 1992.

Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip
x 103 x 34 mm / x 4.06 x 1.34 inch
Weight 38 g / 1.34 oz
Information source Babani, International Radio Tube Encyclopaedia   p. 44 & 45
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Swction 122, p. 156

a256_so.png A256: ARRL Handbook 1972
Anonymous 10 Collector


Just Qvigstad
Usage in Models 1= 1933 ; 1= 1935? ; 1= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

 
f_visseaux_a256_1.jpg

 

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