Troubleshoot Question Rat Circuit

[jdduffield]

I just built a rat on perf board, but when I test it, I get no sound until I pull the power plug out of the unit. When I pull the power cable out of the pedal, I hear the pedal working beautifully for a second or two. What is a common cause of this?

 

[jdduffield]

I figured it out. The grounded part of the VREF voltage split was isolated due to a severed copper grounding track. So, instead of 4.5V I was at 7V or higher.