Cyril Bateman's site

[forr]

Originally Posted by tommy1000

The articles describes how to measure distortion in capacitors.
Has anyone built the generator and notch filter and found them useful?

Hi,
I built it, tt was a very ambitious project for me but I ended with success.
The settings of the adjustable resistors and calibration of the lot with the sound card were not easy, they may need new trims form time to time.
I sometimes get a burst of the 4th harmonic but did not identify its origin.
The amplitude stabilization using an opto-coupler like Janacek did seems to me preferable.
I did not measure caps with it yet, I mainly use it to check performances of amplifying circuits.

[tommy1000]

Thank you for sharing this information.