So I visited someone who used to work at a hospital in the '90s and I got this hand-made #vintage #pcb .
The writing is
Coronametrics Front End/Ultrasound
the other side has 02/83 , could be a year.
No solder mask, traces at weird angles, no clear grid, rusty screw.
What computer would it slot into?
There's more in the basement it came from if anyone's interested :P I even saw one with a bunch of DIP ICs.