via this auction
"This is a Fresh Built Mutable Instruments Shruthi-1 Yellow Magic The Psychonaut Synthesizer. Only the Most quality Parts are used in my Professional Clean builds. I really dig this configuration, the MS-20 Filter is killer and the Delay tops it all off.
-Light Smoke Acrylic Enclosure
-Amber LCD Display
-Amber LEDs
-Tight Panasonic Pots
-Bourns Detented Encoder
-Panasonic Audio Capacitors
'This Filter combines two great sources of sonic weirdness: a moody and sometimes screaming low-pass filter inspired by the MS-20 LPF; and a low-fi digital delay employing DIY stomp-box makers’ favorite, the PT2399 delay chip. The delay has a minimal EQ section in its feedback loop, creating brooding, dark echoes or dub build-ups.'"