Hi,
Studied Electrical Engineering in the 1990's. Work at a Point-Of-Sale company (R&D) where we designed our own custom motherboards and interfaces for printers, LCD screens, power-management and so on. Moved into computers and eventually cyber security.
Now I have a 9 year old crying about his old laptop that is broken and I must fix it because he doesn't want a newer one. So back to dusting off the old fluke 12 and soldering iron.