Hello everyone, I am seventy now and still tinkering around. It all start all those years ago on black & white TVs replacing valves. caps and resistors. And all you need then was a screwdriver, soldering iron, multimeter, a oscilloscope, signal generator and frequency meter . Fast forward to current times, besides specialised screwdriver set and multimeter. hot air, microscope, donor boards, glue, various tapes, ultrasonic cleaner and a power supply for injecting voltage. What next.....Step forward AI....