Optigan

Pitch stability is one of the biggest problems for Optigans. The rubber on the idler wheel gets hard or worn over the years, which makes the wheel slip against the tapered motor shaft. Old wheels can have other problems including notches or flat spots, which cause a knocking or grinding sound when the discs are [...]

Yes and no. From a musical standpoint, they’re very VERY wrong! But nothing is actually wrong with your Optigan. In order to fit enough stuff onto the discs, they had to cut corners a bit. There wasn’t enough room for A and E major, so they decided that they would take a C# dim chord [...]

Yes and no. From a musical standpoint, they’re very very wrong. But nothing is actually wrong with your Optigan. In order to fit enough stuff onto the discs, they had to cut corners a bit. There wasn’t enough room for A and E major, so they decided that they would take a C# dim chord [...]

Mostly Hammond B3s, Vox Continentals, Gibson and Yamaha Organs.