Version 1

    Extracts from Russian radio magazines including what I think is The Kovalsky theremin.


    These were extracted from articles I found via  links I found  at Theremin World


    These scanned files of Russian radio magizines:


    You can view these complete files with this free software:


    I cannot read Russian, and am not sure that I have actually extracted all theremin related stuff from these articles -


    Anyone having better insight into this stuff, PLEASE add a document here to complete the information!