Overvolting toys! #8. Audio circuits goes crazy

I put higher voltage on more toys primarily using a 0-30V bench power supply. But some toys required even more voltage to die! Used a Variac with a full bridge rectifier (input 230V) when I needed more than 30V. 00:10 Fisher Price BeatBowWow - French 01:39 Rock & Roll Ernie - Spanish 02:50 Drumming Rabbit 04:21 Sleepy Furby 2005 05:50 Pig 07:01 Unicorn