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History of the manufacturer  

Columbia Radio Corp.; Chicago, Illinois

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Name: Columbia Radio Corp.; Chicago, Illinois    (USA)  
Abbreviation: columbia2
Products: Model types
Summary:

The Columbia Radio Corporation was located in Chicago, Illinois.

Trade Name: Gem O' The Air

History:

This manufacturer was suggested by Alan Larsen.


Some models:
Country Year Name 1st Tube Notes
USA  22 Gem-O-The Air Model A   Columbia Radio Corporation Gem-O-The Air Boxed crystal receiver with the Columbia Three Wa... 

[rmxhdet-en]

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

Fall 1924 issue of the Citizens Radio Callbooktbn_usa_columbia_radio_adfall1924citizensradiocallbook.jpg

  
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