MATRIXSYNTH: Williams Synthesiser?

Sunday, April 09, 2023

Williams Synthesiser?

video upload by matrixsynth via Andrew

Update: video above added along with new pics below, via Andrew.

"Explored the internals and it doesn't appear to be a Maplin kit, but looks like a DIY/Handmade."

Andrew went on to mention "It looks like a Dewtron DIY system. The controls are similar to that of the Apollo." [see this post]

This one is in via Andrew.

Note the WilliamSynthsizer on the top right, the 7 x 10 patchpay on the lower right, the massive 12 x 19 patchbay on the left, and the keyboard controller. I thought it might be a Maplin. If so, some massive custom work went into it. It could also be ralated to this synth from 1973's Wireless World magazine. There was also a custom white 5600s which has a larger patchbay compared to the standard square found on most Maplins. Note the one on this Williams Synthesiser is much larger. I could not find a matching keyboard controller.

Andrew plans to open it up and take a look at the inside. He also plans to take more pics. I'll put up a new post when they come in. Until then, if you know what this is, or have any guesses, let us know!


  1. I could be wrong, but I think I might have seen something like this at an exhibition of instruments belonging to Melbourne Electronic Sound Studio (MESS) - here's their site URL: - and an email address: Could it be a kit synth - pretty ambitious if so...

  2. Definitely not ETI/Maplin boards, and the pots dont match the ones you expect for the ETI/Maplin circuits.

  3. The Inductor reminded me of the Wireless World synth. The MFC6040 reminded me of the PE sound synthesizer, and the jacks (the least important "clue") remind me of PAiA. Perhaps it is a mash of all that was available, schematics and parts, at the time.

  4. There are also some Dewtron modules in there, which would probably date it to the early seventies.

  5. Not impossible I may have built the original version of this machine and it's been very heavily modified since then. Check my comments of Rafa Saez' post on the 'Synthesizers' group on Facebook.


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