> I found software called Visual Analyser which is a scope, function
 > generator and also an RLC meter.
 > http://www.sillanumsoft.org/ZRLC.htm

A similar circuit ($20 kit), from the cited prior work articles from QEX=20
& QST is available at
http://wb6dhw.com/RLC_Meter.html .

No affiliation, except I have one awaiting a build.

Daniel

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