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History of the manufacturer  

Ruusuvaara, Helsinki

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Name: Ruusuvaara, Helsinki    (FIN)  
Abbreviation: ruusuvaara

Viljo Ruusuvaaran Radiotehdas, Helsinki

Founded: 1924
Production: 1924 -

This manufacturer was suggested by Lasse Nirhamo.

Some models:
Country Year Name 1st Tube Notes
FIN  28 ETO A225   
FIN  37 AVU 6F7   
FIN  42 AVU 42    
FIN  41 AVU 41 KF3   
FIN  46 AVU 46 6J8G   
FIN  27/28 Hermes S4    
FIN  27/28 Hermes S5    
FIN  45 VIRPO 24 Sarja E/A. RE034   
FIN  43 Sissi 43 DK21  Switch at chassis back side for selection the filament voltage 1,5 or 2 V (dry cell or lea... 


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