Help with no headlights. 1974 scamp. Blinkers come on instead...

I will try that thanks. U are saying the knobs pull out the front? With depressing a switch?
Yes but it can be hard to depress the 'button' to release it.

I'd not start in the middle. There's only one hot going to the dimmer switch. I'd look down stream first to figure out why both hi and low have power at the same time.