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ID = 68601
United States of America (USA)
Brand: Sparton-Cardon Tubes; Jackson MI
Developer: Sparton-Cardon Tubes; Jackson MI 
Tube type:  Wunderlich Tube   Detector 
  Ca. 1925 up to 1945 rare.
Identical to 70_Sparton
Similar Tubes
Normally replaceable-slightly different:
  70_Wunderlich ; 90_Ken-Rad ; 92

Base 6-Pin-Base U6A, old, USA
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AC/DC

Special detector[b]

A triode with two equal grids and a single plate. Used as a full wave detector (am) with additional LF-amplification.

Dimensions (WHD)
incl. pins / tip
x 103 x 38 mm / x 4.06 x 1.50 inch
Weight 34 g / 1.20 oz
Information source - - Manufacturers Literature   
-- Collector info (Sammler)   

sparton_70_pin_ass.png 70_Sparton: Fin Stewart
Fin Stewart

Just Qvigstad
70_Sparton: own collection
Peter den Boer



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