Gakken SX-150 MKII analog synthesizer

I bought two Gakken SX-150 MII synths because from Hong Kong, you can get them for £15 delivered. The plan was to modify one of them but can't be arsed. You can't really play anything on them except simulating a theremin, They are essentially a stylophone with sillier sounds but it uses one long ribbon, they have internal speaker and headphone out and run on batteries so you can have portable sound making fun and they tend to annoy people which is always a good thing. In the box comes lots of lovely stickers.

One good thing is they have put the schematic on-line which makes it easy to figure mods.