EH Op Amp Big Muff Pi Clone gaussmarkov April 4, 2007 http://gaussmarkov.net/index.php?page=layouts#opbmp Notes Source: http://topopiccione.atspace.com/ This circuit was documented by Paul Nelson and his original work is the source of this project. Chris Gregory suggested the project for gaussmarkov.net. He also verified it and helped improve the layout. Layout 1 Schematic 2 Parts List Part Value Library Part Value Library C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 D1 D2 D3 D4 D5 D6 IC1 IC2 .15uF .01uF .0047uF 10uF 4.7uF 150pF 1uF .1uF .12uF 200uF 1uF .22uF 1N914 1N914 1N914 1N914 1N914 1N914 4558 LM741 gm-caps-film-box gm-caps-film-box gm-caps-film-box gm-caps-electro-pol gm-caps-electro-pol gm-caps-ceramic gm-caps-film-box gm-caps-film-box gm-caps-film-box gm-caps-electro-pol gm-caps-film-box gm-caps-film-box gm-diodes gm-diodes gm-diodes gm-diodes gm-diodes gm-diodes gm-ics gm-ics R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 SUSTAIN TONE VOLUME 1M 56K 330K 10K 47K 560K 62K 47 8.2K 470K 5.6K 1.2K 100K 47 220K 220K 820K 1M 10K 10K 50K gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-resistors gm-pots gm-pots gm-pots PCB Image When printing this image, use “Page Scaling: None” in the Adobe Reader print dialog. 3