• 2023
  • Dec
  • 1

The Heathkit IM-1212 in operation. Kind of.

I decided to put the Heathkit IM-1212 meter in operation as a bus voltage monitor for my network rack. It’s currently on the 5V rail, but I’m working on a solution to get it on both the 5 and 12 volt rails.

5.2V is about right, considering it’s something like 5.11V at the distribution board.

im1212ip.jpg

The oscillator adjust, which should be 0.85, is already off. That’s about par for one of these.