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ID = 47765
United States of America (USA)
Brand: Sparton-Cardon Tubes; Jackson MI
Developer: Sparton-Cardon Tubes; Jackson MI 
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to 686
Similar Tubes
Normally replaceable-slightly different:
Successor Tubes 486_Sparton  

Base UY-Base, 5 Pins (USA, April 1927)
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.25 Ampere / Direct / Battery =

Contradiction : The Sparton Tubes table in Rider's Sparks-Withington, p.2-60 lists a filament voltage of 3 Volts, but also a supply from 6 V storage battery! This tube is made by Arcturus for Sparton/Cardon. The Arcturus type number is A-486.

Dimensions (WHD)
incl. pins / tip
x 110 x 45 mm / x 4.33 x 1.77 inch
Weight 50 g / 1.76 oz
Information source Rider's Perpetual, Volume 2 = 1932 and before   Sparks-Withington, p.2-60

486_686base~~3.png 686: own collection
Peter den Boer

Just Qvigstad
686: own collection
Peter den Boer

Collection of



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