Realized it's been 6 years since I last tried troubleshooting this Tempest machine. I think there might just be a bad solder joint somewhere, because I took the pcb out, jiggled things, hooked up the scope, and suddenly something works?? #arcade #atari

It definitely wasn't doing this for me before, according to my notes from my last go round with this thing. Next challenge will probably be the monitor, which likely needs new deflection transistors

I've been procrastinating even touching this thing again, because I thought I'd have to go bit by bit through the PCB and schematic to diagnose it. And I only sorta know what I'm doing 😅