as you can tell by the topic title, i have a scalextric set which uses a standard remote control which is based on resistance.
the input power is 19v 0.5amps, when the remote is connected the voltage varies from 19v - 12v, which im guessing is due to the resistance coil in the controller.
i guess im looking for an idea on how i can control the voltage the same way. im guessing a potentiometer would be best, however when i tried it the pot started to smoke up. i used a 10k ohm resistor, and guessing that might be the issue. i did the calculations, 19v - 12v / 500 ma and i got 15 ohm.
when i connected the multi meter to the track i got a voltage between 0 - 5v.
as you can see im lost and could use some guidance
if anyone can help that would be great
thank you so much