IN the '70's and '80's, John H. Roberts wrote several DIY articles for Pop Electronics, TAA, and the last one(?) being in Audio for a high performance noise reduction unit for tape recording. I have the article but no Pc layout was included. Roberts sold the board by mail and also sold the board layout by itself. Is there any chance that someone has a board or board layout sheet out there that was never used?
Thank you! Coolohm
Thank you! Coolohm