Got it back from Goodwill, system test passed...and the power supply blew. 99.9% sure it's those mylar caps in the Dyna power supply. Smells like...caps...from a cap pistol. Plus they were cracked and looked a little black.
Will be replacing those and the 1uF that are notorious, as soon as I get:
fuse holders (might as well not solder in another fuse)
Pace PPS80A (mine's broke)
I also ordered a Meanwell just to have around. Quad output for $20...too large to fix in the old case but I might make a custom mount. IIRC it's 50W which is the smallest meanwell quad but a good bit uprated from stock.
3D Printer time for a new cover...might make some paintable sets for Ebay...
Also scored a long serial cable, 2x3.5 external and 2x5.25 external.
And the icing: it has an Applied Engineering GS RAM Plus in it! Which is about 75% full....