In this video, we describe 5 reasons a guitar pedal may pop when engaged and what steps we can take to resolve the issue.

Methods to resolve LED current draw beyond a simple resistor and LED change:
http://www.muzique.com/lab/led.htm (Jack Orman)
http://www.geofex.com/article_folders... (R.G. Keen)

Dave Jones from the EEVBlog's Video on Capacitors:
   • EEVblog #33 2of2 - Capacitor Tutorial...