Both the sx-150 and the mini theremin belong to the japanese enterprise gakken. They belong to independent kits and each one of them comes with a magazine that exposes the history of the instrument, its principal propulsors, the most relevant artists and recomends the most relevant LP’s… it’s all written in japanese. It’s easy to assemble and it only requires to screw and load it with four batteries, so you can start enjoying it.
analog synthesizer kit SX-150
mini Theremin kit