Quote Originally Posted by keithdoxey
I think my worst error was when I was repairing a turntable that had a faulty transformer. I was wiring in a temporary replacement when someone distracted me. When I continued I joined up the wrong wires and stuffed 240V mains straight into the PCB that was supposed to take 20V AC.

Not ALL the IC's exploded... some just blistered... but the turntable had to go to that great disco in the sky
My favorite was accidentally reversing the power leads on the pc board for a new project. I (and a whole room full of people) hit the floor thinking it was gunshots when the electrolytic capacitors exploded.