GUITAR FX

www.diystompboxes.com (forum, faq, layout gallerynya)
http://www.diystompboxes.com/pedals/schematics.html 
http://diy-fever.com/
www.diokay.com
http://www.diystompboxes.com/pedals/mods.html (simple mods)
www.geofex.com (some important theories)
www.tonepad.com (home of GT2 clone)
www.generalguitargadgets.com (lots of FX PCBs, samples, parts)
www.runoffgroove.com (great original design FX and sound samples)
www.home-wrecker.com (lots of sound samples)
http://www.indyguitarist.com/torchy/
http://web.archive.org/web/200208241...ng.html#item44
www.18watt.com (clone ampli marshall 18watt)
www.ax84.com (ampli tabung)
http://diy.musikding.de (German)
http://diy.erikhansen.net
www.godiksennet.com (schematic BOSS)
http://www.freeinfosociety.com/elect...page.php?cat=1
http://smallbox.zeonhost.com/
http://www.guitarnuts.com/
http://gaussmarkov.net/wordpress/category/circuits/ (schema & PCB)
http://www.freewebs.com/loudnoise /

http://www.madbeanpedals.com/
http://www.mygreatguitar.com/




Online part supplier  :

www.banzaieffects.com
www.musikding.de
www.smallbearelec.com
www.pedalpartsplus.com (box & footswitch)