
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.
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