Re: Capacitance Meter Recommendation
- From: Tom MacIntyre <tom__macintyre@xxxxxxxxxxx>
- Date: Sun, 26 Jun 2005 15:57:54 GMT
On Sun, 26 Jun 2005 15:50:04 +0200 (CEST), Nomen Nescio
<nobody@xxxxxxxxx> wrote:
>I'm just starting the process of bringing back from the dead a very old
>1950's RCA color television. The CTC-7 chassis is very ugly looking, with
>over 75 paper capacitors. There are also two Sprague can-type
>electrolytics, 3 caps in each can. Will have to make something to replace.
>Powering on is out of the question until I can replace numerous components.
>
>I want to buy a capacitance meter to check both the caps that I'm replacing
>and the replacement parts I will install. I've been looking at a BK
>Precision 810c Capacitance Meter. Or maybe I'll buy a Fluke 177. But then
>I read this from a post in 2002:
>
>"don't expect the Capacitance measurements (of a DMM) to equal that of even
>the cheapest C meter. Even on the "expensive" meters." Paul Grohe,
>sci.electronics.basics
>
>My concern is that the capacitor checker function built into a
>multi-purpose DMM isn't as good as a stand-alone capacitance meter. Is
>there any truth to this statement?
If you want to verify electrolytic capacitors, you have to be able to
check the ESR.
Tom
.
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