An old analog subtractive synth with 2 VCO's and three ring mods.
Anyone? Refer to Colin's link above under uncommon chips for help on the modules. Cleaning issues on sliders/switches common.
I have drilled replicas (instead of flat holes for shaft). Super nice precise mold. - $7 ea.
I believe you'll draw mostly blank looks from Korg on these units. I have some parts that are the same so feel free to ask what the current stock is on a given thing. Some of the less common parts are getting quite hard to find though. THings pop up on ebay now and then.. Contact