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Repair Service

The JMS offers workshops with technical expertise in electronics, mechanical engineering and assembly tools.


The electronic shop carries all kinds of equipment repair, review and construction of custom accessories.


Specialists amplifiers valves and experience in repair racks and effects pedals.


We winding machine itself and laboratory equipped with a wide range of measuring instruments and analyzers for all purposes. Analyzer valves, oscilloscopes, signal generators and all kinds of equipment necessary for the services.


In section custom instruments we build our own instruments from recycled vintage instruments and new material of the highest quality.


We are able to install all kinds of hardware tools of our customers and to introduce all kinds of requested changes.


We build dream tailor-made tools.


Develop new sounds and realize the dreams of our customers is our vocation.








Pickups and hardware installation

Construction of power supplies by measure

Winding pickups



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