• 2025
  • Mar
  • 25

The Heatkit AF-1 Analog Frequency Meter, Part 8 - Rebuilding the rest of it.

Since rebuilding the filter didn’t fix some of the issues, and I was planning on replacing everything else - let’s just go ahead and do it.

The same film capacitors and high-tolerance resistors were used for this section as was used in the filter. I simply started at the top and worked down, replacing each part in turn.

haf8-allold.jpg

haf8-allnew.jpg

This just leaves the potentiometers, but those may require some special attention. After a work check, I’m planning on testing things out. Stay tuned!

Next part of this series: https://wereboar.com … testing-the-rebuild/
Previous part of this series: https://wereboar.com … building-the-filter/