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History of the manufacturer  

Atma-Sphere Music Systems, Inc.; Saint Paul, MN

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Name: Atma-Sphere Music Systems, Inc.; Saint Paul, MN    (USA)  
Abbreviation: atmasphere
Products: Model types
Summary:

Atma-Sphere Music Systems, Inc.; Saint Paul, MN

Atma-Sphere is a maker of OutputTransformerLess (OTL) tube amplifiers.

Founded: 1976
History:

This manufacturer was suggested by Gottfried Silberhorn.


Some models:
Country Year Name 1st Tube Notes
USA  03 OTL Monoblock M-60 Mk. II (2) 6SN7GT  OTL (Output TransformerLess) power amplifier, mono, Class-A, with Bias meter. 

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