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History of the manufacturer  

Jaka; (where?)

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Name: Jaka; (where?)    (I)  
Abbreviation: jaka
Products: Model types

This manufacturer was suggested by Riccardo Landi.

Some models:
Country Year Name 1st Tube Notes
57 57M 12AJ8   
55 Unknown 6BE6  Apparentemente identico alla Sicart A56.