I really need to sort this stuff and see if any of it is useful. There was one chip that caught my eye. It is a 40 pin white chip with gold pins and a big gold square in the center. Has AY-5-1012 and below that 7319. These are General Instruments and I understand they are vintage. I know this has nothing to do with the thread but interesting.
That chip is historically interesting, but unlikely to be useful. It's a UART from the early eighties, and there don't seem to be any datasheets online. This is as much information as I could track down:
AY5-1012
Peripheral Controller - Full Duplex,20k Baud(320kHz Clock)min
V(IL) Max.(V)Lo Level In.Volt.=0.8
V(IH) Min.(V)Hi Level In.Volt.=3.5
P(D) Max.(W) Power Dissipation=224m
Vsup(-) Nom.(V) Neg.Sup.Volt.=12
Vsup(+) Nom.(V) Pos.Sup.Volt.=5.0
Status=Discontinued
Package=DIP
Pins=40
Military=N
Technology=PMOS