Here's the whole thing. It's not worth replacing everything, although I may get rid of the tantalum crud at some point.
That's pretty cool for an old piece of junk. Love those hand-taped/drawn traces and the MC7441 Nixie tube drivers. Kind of surprised it's a fiberglass board instead of phenolic given the age of the parts. Must have been spec'ed for fiberglass due to its application. Was probably pretty expensive in its time.
It's a Heathkit IM-1212 voltmeter kit. It was probably outrageously expensive because it was sold by a school (in this case, Bell & Howell.)
It's a Heathkit IM-1212 voltmeter kit. It was probably outrageously expensive because it was sold by a school (in this case, Bell & Howell.)
A voltmeter with only 2 digits of display? That must have been a precision piece of test gear!
(post is archived)