Investing in a decent LCR/ESR Meter is a good idea if you find yourself repairing lots of electronic devices. TheST5-S Smart LCR/ESR Meter Tweezersare worth a look. This device comes with a LCR meter with 0.1%
[Peter Demchenko] wanted to use a low power TS555 in an ESR meter design. The problem is, he needed to handle significant current sink requirements for cases where the capacitor under test had a low ESR. The TS555 wasn’t up to the task. However, [Peter] made an interesting observatio...