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ID = 56627
United States of America (USA)
Brand: National Union Radio Corp.; Orange (NJ)
Developer: National Union Radio Corp.; Orange (NJ) 
Tube type:  Beam Switching Tube - incl. "Trochotron" 
Identical to 6170
Similar Tubes
Other base:
First Source (s)
10.Feb.1956 : Electron Tube Registration List 1590

Base SPECIAL TUBEBASE in general Wires only
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect
Description 25 position beam switching tube, to be used in transmission of multiplexed channels over a single carrier. The 25 grids are brought separately out, while anodes are all connected together. The tube has a special 34 radial lead base, a sort of giant acorn base, and a top cap; it required an external magnetic field.
Also available with special 34-pin base, as 6324.

Operating principle of trochotron. 
Dimensions (WHD)
incl. pins / tip
125 x 142 x mm / 4.92 x 5.59 x inch
Information source Tube Lore (I)   
- - Manufacturers Literature   
  6170: Manufacturer's Literature
Emilio Ciardiello
6170: Larry Daniel collection
Robert Gillespie

6170: Manufacturer's Literature
Emilio Ciardiello

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