MESR-100 ESR meter review and teardown

I wanted an in-circuit ESR meter (equivalent series resistance meter) to aid in determining the condition of  electrolytic capacitors without the need of desoldering them first. When capacitors fail you will often have some signs of failure such as bulging of the capacitor top. Starting in approximately 2002 and continuing till about 2010 there was a glut of high failure rate capacitors on the market which ...

Read more
Scroll to top