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History of the manufacturer  

Wattram, Helsinki

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Name: Wattram, Helsinki    (FIN)  
Abbreviation: wattram
Products: Model types

E Haapala Oy

Founded: 1936
Closed: 1940
Production: 1936 - 1940

This manufacturer was suggested by Lasse Nirhamo.

Some models:
Country Year Name 1st Tube Notes
FIN  38 5V9 6J8  Keski-Suomen museo collection 
FIN  38 7W8    
FIN  39 V17    
FIN  39 TW15    
FIN  39 TV17    
FIN  38 Super 4P10 1A7G  Alternative tubes can be: DK21, DF21, DAC21, DL21 
FIN  44/45 Super W 45 ECH11   
FIN  40 Ilmatar Super 4P9 DK21   


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