I disassembled my old Niko RC car today. Thought I could play around with the parts.
But what I can't seem to understand is the coil. The powersource of the rc car is a 7.2v NiCd 620mAh battery. And as you all see (image 1) I've tried to connect it directly on the coil - nothing happens.
As I know nothing about electronics I thought I might test with a 9v also (image 2) :-).
But still nothing happens. Does anyone know what's wrong? I did some simple measurements with a multimeter before disassembling and the coil got -3.3v / 0v / 3.3v depending on what it was doing. This coil is controlling the rc car so its voltages for left / center / right.