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Valve Exhibits, Data, Adverts and Boxes listed by Make/Brand
    
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Cleartron

Valve List

Brand Advert.
•The Wireless Constructor
•October, 1928
Selfridges Advert.
•Wireless World
•October 5, 1927.
Brand Advert.
•Radio Times
•September 21, 1928

CT6S/SD

CT199

CT199

CT199

CT201a
 
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