I am looking to build a frequency counter, or buy an inxepensive kit.
Any recommendations?
Needs: low cost, few parts count
Thanks

What frequency range , how accurate, and what do you think of as inexpensive
?
I have not looked lately but there used to be some that would work up to
about 1.5 Ghz around $ 125 or so that would get you to within a couple of
hundred Hz at 150 mhz.