EPs Mikhail Kadomtsev's Ensemble of Electronic Musical Instruments and Ekvodin Quartet - Concert [Мелодия , 1961, EP] Another set of beautiful melodies from the revolutionary instrument "Ekvodin"!
Ekvodin Unknown - Ekvodin Demonstration Record [Всесоюзная Студия Грамзаписи, 1960?, EP] A thorough demonstration of the capabilities of the Ekvodin, a powerful early synthesizer designed in 1931!