Knobcon Synth Meet Pics via Russ of Evaton Technologies

Some pics of the Knobcon Synth Meet via Russ of Evaton Technologies. See some of the Friday night party pics here.

The synth pictured left was actually designed by Russ back in 1982. It was based on the TI SN94281 chip. You can find some previous posts including video here.

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94281

YouTube via SynthD00D

"SN94281 homebrew sound effects box from 1983. Recently restored, and featured on Matrixsynth and Make Magazine blog."

Russ' Synth stuff

Russ's Synth stuff
Pictured: "Handmade SN94281-based synth I made back in 1983. The device won the Grand Champion prize at the York County Science and Engineering fair --- I was 12 years old at the time. Last year at this time, I decided to restore it to working order for its 25th birthday. It is basically a "breakout box" for the Texas Instruments SN94281 Complex Sound Generator chip. All features of the chip are available as front panel knobs or multi-position switches.

The chip is showing signs of its age -- the power audio amplifier no longer works correctly, but the output signal can still be amplified if driving a high impedance load.

For those unfamiliar with the SN94281, a data sheet is available here:

http://soundprogramming.net/electronics_reference/manuals/sn94281datasheet.pdf"

You can find samples and more of Russ' Synth Stuff here.