Quote Originally Posted by Wilson View Post
The schematic had the diodes on the bridge rectifier for the power supply connected wrong.
Sounds like my first attempt at building a bridge rectifier when I was about 11 years old.

What I actually constructed was a "ring rectifier" with all the diodes pointing in a circle. There was an almighty bang when I turned the power on and my diodes were no more. Didnt make that mistake again