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X29

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ID = 80821
       
Country:
United States of America (USA)
Brand: Sonatron Tube Company; Chicago and New York
Developer: Sonatron Tube Company; Chicago and New York 
Tube type:  Triode, vacuum   Power/Output 
Identical to X29

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery =
Description

This tube is specially designed for resistance coupled amplifiers. It has a small UX base and a red bulb - possibly stained and not red glass.. 

 
Dimensions (WHD)
incl. pins / tip
x 90 x 25 mm / x 3.54 x 0.98 inch
Weight 26 g / 0.92 oz
Information source -- Collector info (Sammler)   Characteristics of Sonatron tubes, undated
Tube Lore (II)   Page 35

ux_base_standard~~183.png X29: Fin Stewart
Fin Stewart


Just Qvigstad
 

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