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History of the manufacturer  

Calvertron (tubes) - see also CEI; Lafox, IL

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Name: Calvertron (tubes) - see also CEI; Lafox, IL    (USA)  
Abbreviation: calvertron
Products: Brand
Summary:

Calvertron was a brand of tubes used by Calvert Electronics Inc. (CEI).

History:

This manufacturer was suggested by Otmar Jung.


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