On Tue, 03 Jul 2007 19:44:04 GMT, Eeyore
wrote:



"J.P." wrote:

http://alytus.auksa.lt/esr/

You posted this crap here too ?

Maybe some kind person will provide a circuit that works.

Graham

Yikes, that circuit might measure impedance, but surely not ESR. That
would be a good design for students to nit-pick for a homework
assignment.

HP4194 or HP4195 work great for ESR measurements. Got those two
instruments sitting next to me. Still need to build up the interface
boxes to the 4195! I think we have the schematics of both boxes too.

---
Mark