Thanks again for the nudge, I acquired a Q*Bert project, and my Tempest died, so I'm juggling three restores/fixes right now.
I have Qix working. Still no green, and I'm not sure why. Monitor tests fine on my bench. Also no sound, which should be a simpler fix. Here's my latest photo. Not great quality, but you get the idea. I have two marquee blinker bulbs which weren't blinking when I took this photo (so they look like they're out).
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