Econolite 2070 ATC traffic controller screen repair
these controller screens are bad about going out so you can't see the display and a new screen is very expensive.
We discovered that you can replace the potentiometer (the Knob) and it will fix the problem
this is a simple fix and saves a ton of money because you can get 20 of these knobs on amazon for only $12
here is a link to the knobs we used in the video
https://www.amazon.com/dp/B07B64MWRF/...