Mystery Vintage Matrix Pump, Tim Smith DIY & Vintage EML

Pictured are a few interesting items for sale from Mike Berman. You can find them here.

I asked him if it would be OK to capture the pictures here as I've never seen the "matrix pump" before. He gave me the all clear. Note this is the first post to feature one. This is a rare piece of synth history.

All Mike knows about it follows: "For me, the nature of the Matrix pump and its affiliation with EML is pure speculation. I always assumed it to be, at best, an unfinished one-off. If you magnify the photo you can read the labels on the controls and they are intriguing. The multi-pin socket on the left side of the MP accepts the same plug that EML sequencers use. That section is labeled 'Synto Interface'. I experimented with various patches and found some functionality in a few of the controls but I don't recall specifics beyond that. "

Below that you can see The Tim Smith box featuring the following section: Explonental Amp, Noise Generator, Lag Processor, and ENV/Gate Generator. I asked Mike is Tim Smith the same Tim Smith that was the Western Regional Tech Rep for Sequential Circuits , Arp, Moog and also contributed to the famous Vintage Synthesizers book and articles in Keyboard Magazine. He's not sure but believes it is.

Further below you'll find the MODEL EML-200, MANUAL CONTROLLER EML-300, multi-pin cables, EML 400 : EML 401, EML 500, EML POLY-BOX, X-Y CONTROLLER