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History of the manufacturer  

Radiall Co.; New York

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Name: Radiall Co.; New York    (USA)  
Abbreviation: radiall
Products: Model types Tube manufacturer
Summary:

Radiall Company; 50-52 Franklin St.,New York.
ca. 1930 the Radiall Co. became the Amperite Co.
Production went on until the late 1940's.

Not to be confused with the 1952 founded French Radiall; Paris.

Production: 1922 -
History:

Products:
- the Tune-Rite dial which converts any ordinary variable condenser to straight-line-frequency characteristics
- the Amperite self adjusting rheostat

from: the Radio Trade Directory Aug.,1925
and the Radio Trade Directory, Aug.,1925.

This manufacturer was suggested by Konrad Birkner † 12.08.2014.


Some models:
Country Year Name 1st Tube Notes
USA  25 Amperite Self-Adjusting Rheostat   Amperite Self-Adjusting Rheostat. No. 112 for the UX-112 and CX-112 No. 120 for... 
USA  26 Tune-Rite Dial   Tune-Rite straight line frequency dial.   

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

Radio Broadcast, Dec. 1925, p. 243tbn_usa_radiall.jpg
The Radiall Booktbn_usa_radiall_book.jpg
tbn_usa_radiall_amperite.jpg

  
rmXorg