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C-686

Information - Help 
ID = 57199
       
Country:
United States of America (USA)
Brand: Sparton-Cardon Tubes; Jackson MI
Developer: Sparton-Cardon Tubes; Jackson MI 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 rare.
Identical to C-686
Similar Tubes
Normally replaceable-slightly different:
  486 ; 686
First year 1928 For Equasonne model 39 and 49, original line up
Successor Tubes 486  

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 =
Description

The Sparton type C-686 was one of the first tubes used for the Equasonne line. The type Sparton 486 was the replacement, at least since 1934. We can assume that the type 486 was designed in 1930 or later. Both were used for the Equasonne types 39 and 49, but even in saison 1929/30, the C-686 was used as original tube. See also Rider's volume 5, page Sparton 5-6. The tubes are not mentioned in "Röhren-Codex 1948", nor a 686. The Sparton 686 could be the C-686 without writing the "C". Arcturus also made the tube with the type number A-486. This tube has "daylight" blue glass.

 
Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
Weight 50 g / 1.76 oz
Literature - - Manufacturers Literature   
-- Collector info (Sammler)   
 
486_686base~~1.png
C-686: own collection
Peter den Boer

 
c-686data.png
C-686: own collection
Peter den Boer


Usage in Models 1= 1928 ; 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

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