N4TMI Coil Test Oscillator
This circut was originally published in 73 magazine by N4TMI.
It has since been republished at: https://www.radio-collector.com/coil-resonance-tester/
W2AEW's YouTube Channel has a nice video about how to determine the value of the device under test.
You can find it here: https://youtu.be/Ff5xOENID7w
I've built the circuit, modified to W2AEW's version, and it works. The board file is on Osh Park and
can be found here:
Or you can use or modify the included Eagle files as you wish
mike6158 / n4tmi-coil-tester Goto Github PK
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