I have this circuit, the standard Velleman mk103 sound to light kit. I would like to control 2 20w 12v lamps. I've got some TIP142 transistors that should be OK to do the switching, I just don't know how to tap into the output to make it work.
I've been trying to tap just before the first LED but this is giving a very limited response.
What's the best way to do it?
Steve