Links

Applications and Tools

• inkscape.org
• kicad-pcb.org
• dia-installer.de
• arduino.cc
• freecadweb.org

Youtube

• youtube.com/user/Thomashaf
• youtube.com/user/chromespherecom
 

Forums

• HarmonyCentral.com
• freestompboxes.org
• ax84.com
• el34world.com
• madbeanpedals.com  

Projects, Layouts and PCBs

• tagboardeffects.blogspot.com
• revolutiondeux.blogspot.com
• effectslayouts.blogspot.com
• tube-town.net/cms/?DIY
• fuzzcentral.ssguitar.com/ 

Builders

• coda-effects.com
• parasitstudio.se
• dextersworkshop.com
• valvewizard.co.uk
• 1776effects.com
• geofex.com
• super-freq.com 

History

• tonehome.de
• effectsdatabase.com

Part stores and Producers

• sabrotone.com
• diyguitarpedals.com.au
• sklep.avt.pl
• tube-town.net
• pedalpartsplus.com
• jlcpcb.com
• TME.pl