Perfect condition, fully operational.
(https://i.ibb.co/3p2qff6/277336365-4938268076280148-920388772916259036-n.jpg) (https://ibb.co/3p2qff6)
(https://i.ibb.co/2jfrd2P/277214924-4791281747637074-6073018844028778309-n.jpg) (https://imgbb.com/)
(https://i.ibb.co/pJPJ1TD/277445604-7191317967609820-2479702296198222047-n.jpg) (https://imgbb.com/)
(https://i.ibb.co/P4m9GP0/277406716-4955270527875452-8985776465647289364-n.jpg) (https://imgbb.com/)
The M666 is a synthesizer voice with twin VCOs but it´s a very experimental brutal one. It makes a lots of noise and distortion. External audio signals can be fed thru and destroyed by the module as well.
Besides two VCOs there´s a dual high gain amplifier and some VCAs inside as well as a filter and a ring modulator.
Soundwise the M666 is somewhere in between a detuned radio, a fierce distortion and a noise generator.
125 mA +12V