THE GRISKIN

Back in the dark days of 1975, a talented 16 year-old DIY electronics freak by the name of Roy Gwinn designed himself a pretty great little LFO controlled VCA/VCF (tremolo/filter for the less synth-minded). He had it pubished as a project in Popular Electronics magazine under the somewhat uninspiring name of "Guitar Effects Pedal", and as such was sold in kit form by the publishers.