Update! Here is the unit I sent to my friend running on his bench. It will be interesting to see if over time we notice differences between our grid stability.

A project log for That Hertz!
After a discussion regarding line frequency stability, and a need to find a project for some vintage displays, a frequency counter was born!
Update! Here is the unit I sent to my friend running on his bench. It will be interesting to see if over time we notice differences between our grid stability.
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