2014-05-19
via this auction
That is one interesting case. Usually the Estradin-230 is all black.
"This is Soviet synth Estradin-230. The most successful copy of MINIMOOG (ever made in USSR).
The synth is in very good cosmetic and functional condition. It is really nice monophonic analog synth with 3 OSCs and VCF. Please see its specification here."