Curiosity got the better of me and I slowly powered it up on a variac and isolation transformer over the course of an hour or so.
I kept my fingers crossed that the seleniums and electrolytics had some life left. None of the cans got hot.
Eventually, I was treated to a raster
I flipped the clunker around until I hit 6 where we still have a low power NTSC signal.
The horizontal, brightness and contrast are all very touch, but I do get video and sound