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SP60

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ID = 67144
       
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 
  Ca. 1925 up to 1945 very rare. ***
Identical to SP60
Similar Tubes
Different maximum ratings:
  MU-X20 ; MU-X30 ; MU-X6

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament Vf 5 Volts / If 0.25 Ampere / Direct / Battery =
Description

Tube specially designed as a "super power" amplifier type for use as the last audio stage of the Sonatron modular three tube resistance coupled amplifier. Bulb of this tube is gold/amber. It has an amplification factor of 6 and anode voltage of 90 - 135. Tube especially suitable for use where increased violume is required for dance music or amplification of weak signals over a long distance. The tube can be used in place of the MU-X6 as the last audio stage. This special purpose tube is an asset in securing faint signals with min imum interference. The tube is considered to be extremely rare.

 
Information source - - Manufacturers Literature   

uxsockel_11~~6.png SP60: Fin Stewart
Fin Stewart


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