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History of the manufacturer  

Cleartron Vacuum Tube; New York City, NY

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Name: Cleartron Vacuum Tube; New York City, NY    (USA)  
Abbreviation: cleartron
Products: Tube manufacturer

Cleartron Vacuum Tube: 28 West 44th St New York City, NY.

The company also made Hi-Constron branded tubes. This is mentioned on page 170 of the Radio Trade Directory, 1925 and page 356 of Tyne's "Saga of the Vacuum Tube".


Cleartron Vacuum Tube made the Emerson Multivalve which was developed by Emerson Radval Corporation, New York. The tube was rarely used in manufactured sets and only about 1929 to 1931.


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

Radio Broadcast, Dec. 1925, p. 238tbn_usa_cleartron.jpg
Radio Broadcast, Jan. 1926, p. 394tbn_usa_cleartron~~1.jpg
Radio Age for November, 1925 magazine page 67tbn_usa_cleartrone_nov._1925_radio_age_67.jpg
Popular Radio December 1925tbn_cleartron_popular_radio_december_1925.jpg
Cleartron brochure cover 1925tbn_cleartron_brochure_cover_1925.png

Forum contributions about this manufacturer/brand
Cleartron Vacuum Tube; New York City, NY
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Cleartron Vacuum Tube Company
Fin Stewart

The firm of Cleartron Radio Ltd in the UK was a subsidiary of the US company and had its offices in 1 Charing Cross Rd, London SW1. The factory was at 21 Cumberland St Birmingham and operated from 1925 to 1927, making and assembling a number of tubes during these years.

Cleartron Vacuum Tube; New York City, NY
End of forum contributions about this manufacturer/brand