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Tuneon

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ID = 27501
       
Country:
Great Britain (UK)
Brand: GEC, General Electric Co.; London
Tube type:  Glow Indicator (Neon) 
Identical to Tuneon
Predecessor Tubes Tune-A-Lite  

Base OTHER TUBEBASE in general
Filament No heater /
Description Neon filled 3-electrode tuning indicator. See also early tuning indicators with other kind of systems, like the VG-1 (Viso Glo from Sparton), Tune-A-Lite (there is a direct link here) used by Atwater Kent which used also the name Tonebeam in model 96-F, Flash-O-Graph (Fada etc.), Tonebeam, Shadowgraph (Philco), Tuning Flasher (Sears) etc. for "Silent Tuning". 
Dimensions (WHD)
incl. pins / tip
13 x 115 x mm / 0.51 x 4.53 x inch
Literature -- Collector info (Sammler)   

  tuneon_cct.gif
  Tuneon: Wireless World
Roy Johnson
 
tuneon_a.jpg
Tuneon: scc
Christian Schaufelberger

 

Usage in Models 4= 1935 ; 1= 1937
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Tuneon*Box
   

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