Circuit Bent Yamaha PSS-130 PortaSound custom glitch fm synth - $222 (Tucson Amphi)

vintage Yamaha PSS-130 PortaSound FM synthesizer keyboard circuitbent customized with step tone generators and glitch fx.
https://youtube.
com/shorts/h2A830W7oVU?si=5B9tPCicyrq-J7-p As-is, painted and circuit bend customized, I have used it on projects periodically since 2013.
Most recently it was the main synth used in the score for lo-fi interactive fiction / visual novel Salamander Capital https://lichenritual.
bandcamp.
com/album/salamander-capital Also heavily sampled for indie games cult classic RitualQuest https://lichenritual.
itch.
io/ritualquest Comes with handwritten user sheet.
Features include: Photoelectric "theremin" mode switch (cover the "eye" or shine lights in it to affect) four Rhythm Generative Glitch Modifier Switches various Step Tone Generators, atari punk console synths that work along with the Yamaha keyboard preset usage Audio Out (1/4"), Clean Audio In (RCA), Audio In (1/4") through synth, and a switch to mute the internal speaker.
Control Contacts that use your thumb/finger current to manipulate like a Pitch Bend joystick across 3 nodes with pressure affecting (as well as your electrolytes / hydration.
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) Some scuffs slight wear but all fully functional with a few controls that require fiddling sometimes or could be easily replaced so also serves as decent introduction to circuitbending if wanting to examine and try swapping some parts.
Far left volume potentiometer itself a little loose on turning Audio Out Only switch next to volume a little bent Accompany Step Tone Generator #2 (middle of three top switches) sticky Key with masking tape also sticky just needs to be opened up cleaned but has worked well enough that I just never did Mostly just pulled out for specific projects and looking to let go finally get some new equipment in my life.