Fairly Easy - Frequency Counter - Electronic Kit Build (part 3)

Part three of a full build of this moderately easy electronic kit, a 5-digit frequency counter and crystal tester. This third part includes testing and a bit of history behind the design.

Wolf's website: http://www.qsl.net/dl4yhf/freq_counter/freq_counter.html ... https://www.youtube.com/watch?v=q31unvowJe4