ESR Meter Recommendations
holm at freibergnet.de
Wed Sep 30 02:56:36 CDT 2015
Holm Tiffe wrote:
> Ken Seefried wrote:
> > I'm going to be working on my 11/730s power supply, so I'm in the
> > market for an ESR meter. I've seen some (older) recommendations for
> > the AnaTek 'Blue' and various 'Dick Smith' derivatives. However, eBay
> > is flooded with knockoff Mega328 based ESR/Transistor/SCR/etc. testers
> > all looking like:
> > http://www.amazon.com/DROK-Multifunction-Mega328-Transistor-Capacitor/dp/B00NKY3M1W/ref=sr_1_16?ie=UTF8&qid=1443561246&sr=8-16&keywords=esr+meter
> > Anyone had any experience with one of these devices?
> > KJ
> I own a old precise russian LCR Bridge and I have two of the modern
> Atmega328 based "Transistor Testers" that both will do the job at least for
> smaller capacitors, but I mostly use a simple homebuild ESR Meter like
> I know, that isn't a precision device but it is what you mostly need: a
> fast good/bad test solution.
> Because of its small measuring voltage of approx 200mV PN junctions don't
> get opened so that you can quick check electrolytics in the circuit w/o
> desoldering them fist.
> The used transformer in my case is a small ferrite transformer from an old
> PC-PSU (driver circuit). I coud use it w/o to change anything.
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