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Plan-K-Troniks demos this unique mod for the Gakken SX-150 analog synthesizer – a green plasma disc, used to control sound via contact with the stylus. Great – now on to the Gakken Tesla coil!

SX-150 Analog Synthesizer Kit

Collin Cunningham

Collin Cunningham

Born, drew a lot, made video, made music on 4-track, then computer, more songwriting, met future wife, went to art school for video major, made websites, toured in a band, worked as web media tech, discovered electronics, taught myself electronics, blogged about DIY electronics, made web videos about electronics and made music for them … and I still do!

  • duff

    I own 3 of these great synths! and export them overseas if anyone requires one as Im currently in Japan.
    cost is $75 usd + post depending on location ems courier from Japan is pricey , standard post is quite resonable you may be looking at between $15 and $25 usd for freight.

    contact me at or

    OhNo! Mobile Computer Repairs , Christchurch , New Zealand.

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