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History of the manufacturer  

Sigma; Budapest

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Name: Sigma; Budapest    (H)  
Abbreviation: sigma
Products: Model types Others
Summary:

Sigma
Budapest VIII. Szeszgyár utca 12.

Product: Speaker, Transformator ect.

Founded: 1930
Closed: 1943
Production: 1930 - 1943
History:

This manufacturer was suggested by Sándor Selyem-Tóth.


Some models:
Country Year Name 1st Tube Notes
33–41 Sigma S940   2400 Ohm. 2W 
35 Mains Transformers   Series of Sigma Mains Transformers; Primary: 110, 120, 220 V; Secundary: 1x 250V or 2× 3... 
37–39 Speaker 37    
35–38 Speaker 3 P   3 W. 
37–39 Speaker 37 [1]   Impedance: 6-7000 Ohm. 
36 Sigma Statik   Automatikus villámhárító - Automatic lightning protection. 
36 Speaker 2E   2W 
37–39 Speaker '37 [160mm]    
37 Speaker 2P   P: 2W 
40 Sigma S939/K    
41 Kimenő transzformátor - Output Transformer   for max 5W dynamic speaker 

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

Sigma Budapest, Logo in ~1935.tbn_h_sigma_logo.jpg
Thanks for Mr.Sik Béla, Hungary, Budapest and Első Zalai Rádiómúzeum Alapítvány, First Zala County Radio Museum Foundation.tbn_h_sigma_linetransformer_logo.jpg
Rádió Technika 1936. - Perneky Sándor - Rádiómúzeum Alapítvány, Verőce, Hungary, radiomuzeum.hutbn_sigma_advert_1936.jpg

  
rmXorg