Speaking of old stuff................
Here I am, awash in a leaky 12 ft aluminum lifeboat full of partially and non functional vintage outboards..........
and going into a local thrift store, I find an old Heathkit CM-1045 "small engine" tune up meter. Tach, triggered off a spark plug wire, dwell, ohms, etc. Unfortunately the 3 "C" cells ALSO appear to be vintage LOL