If you want to repair your Omnichord, you'll need service manuals, owners manuals, schematics etc.
We collected a couple of them and they are free downloadable from this site. We'll keep looking and post them as soon as we found them.
Still looking for : OM-36 + OM-300 manuals & schematics, OM-100/150/200/250M schematics, Tronichord schematics. Also scans of flyers etc are welcome!