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RogerN
Guest
Sun Feb 07, 2010 12:15 am
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad over
time as far as ESR going to high.
RogerN
ian field
Guest
Sun Feb 07, 2010 12:22 am
"RogerN" <regor_at_midwest.net> wrote in message
news:R_mdncdY4Nifd_DWnZ2dnUVZ_vidnZ2d_at_earthlink.com...
Quote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad
over time as far as ESR going to high.
RogerN
Peak atlas do one but its not cheap!
Charles
Guest
Sun Feb 07, 2010 12:41 am
"RogerN" <regor_at_midwest.net> wrote in message
news:R_mdncdY4Nifd_DWnZ2dnUVZ_vidnZ2d_at_earthlink.com...
Quote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
http://ludens.cl/Electron/esr/esr.html
John Larkin
Guest
Sun Feb 07, 2010 12:45 am
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Quote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad over
time as far as ESR going to high.
RogerN
Do you need an ESR meter? Usually one can just look at the voltage
across the cap, operating, with a scope.
John
Jamie
Guest
Sun Feb 07, 2010 12:56 am
RogerN wrote:
Quote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad over
time as far as ESR going to high.
RogerN
You must be careful with in circuit testers. Make sure you get one that
does not put any more than 1.5 volts in the circuit for testing
otherwise, you can damage components in many today's toys.
Rich Webb
Guest
Sun Feb 07, 2010 1:14 am
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Quote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad over
time as far as ESR going to high.
Look around for Bob Parker's ESR meter kit; it's also knows as the Dick
Smith kit as DSE was an early source for it.
There seems to be a "space age" version out now in a cool blue case.
Doesn't have quite the nerdish cred of the earlier project box. ;-)
http://www.anatekcorp.com/blueesr.htm for one source (among many).
--
Rich Webb Norfolk, VA
RogerN
Guest
Sun Feb 07, 2010 1:46 am
"Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa__at_charter.net> wrote in message
news:dambn.151717$uH1.18130_at_newsfe25.iad...
Quote:
RogerN wrote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad
over time as far as ESR going to high.
RogerN
You must be careful with in circuit testers. Make sure you get one that
does not put any more than 1.5 volts in the circuit for testing otherwise,
you can damage components in many today's toys.
One of them I was looking at said it used (from memory) a 100khz signal
100mV p-p. That spec sounded good but I'm not sure if it was a good meter
or not.
RogerN
RogerN
Guest
Sun Feb 07, 2010 1:55 am
"Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa__at_charter.net> wrote in message
news:vbnbn.35781$Fm7.25712_at_newsfe16.iad...
Quote:
John Larkin wrote:
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad
over time as far as ESR going to high.
RogerN
Do you need an ESR meter? Usually one can just look at the voltage
across the cap, operating, with a scope.
John
I do that also john.
I use my HP sig gen with my tek 350Mhz dual trace (because that's on
the bench) into a fixture I made just to do those things. I set the gen
for 100mv out.. One BNC from the scope and one BNC from the gen into a
little plastic util box, 2 probes coming out for the test, divider network
inside :)
What's really unique about that is, I've used that to find SR.
There's an idea, instead of an ESR meter I have an excuse.. err.. reason to
buy a signal generator and a better scope!
:-)
RogerN
Jamie
Guest
Sun Feb 07, 2010 2:06 am
John Larkin wrote:
Quote:
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad over
time as far as ESR going to high.
RogerN
Do you need an ESR meter? Usually one can just look at the voltage
across the cap, operating, with a scope.
John
I do that also john.
I use my HP sig gen with my tek 350Mhz dual trace (because that's on
the bench) into a fixture I made just to do those things. I set the gen
for 100mv out.. One BNC from the scope and one BNC from the gen into a
little plastic util box, 2 probes coming out for the test, divider
network inside :)
What's really unique about that is, I've used that to find SR.
ian field
Guest
Sun Feb 07, 2010 8:34 pm
"Rich Webb" <bbew.ar_at_mapson.nozirev.ten> wrote in message
news:0ftrm5d1am2o2k2k7ns707k6rn2ucd30od_at_4ax.com...
Quote:
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad
over
time as far as ESR going to high.
Look around for Bob Parker's ESR meter kit; it's also knows as the Dick
Smith kit as DSE was an early source for it.
There seems to be a "space age" version out now in a cool blue case.
Doesn't have quite the nerdish cred of the earlier project box. ;-)
http://www.anatekcorp.com/blueesr.htm for one source (among many).
--
Rich Webb Norfolk, VA
AFAIK the Bob Parker/DSE ESR meter is no longer produced, I got one from a
UK distributor that had remaining stock.
You can find Bob Parker on News:aus.electronics he may be able to provide
more details.
Rich Webb
Guest
Sun Feb 07, 2010 9:34 pm
On Sun, 7 Feb 2010 18:34:13 -0000, "ian field"
<gangprobing.alien_at_ntlworld.com> wrote:
Quote:
"Rich Webb" <bbew.ar_at_mapson.nozirev.ten> wrote in message
news:0ftrm5d1am2o2k2k7ns707k6rn2ucd30od_at_4ax.com...
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Anyone have any info on capacitor equivalent series resistance meters? I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for the
money now.
Sometimes I mess with older computers or controls that don't seem to work
for whatever reason, I'm thinking capacitors would be likely to go bad
over
time as far as ESR going to high.
Look around for Bob Parker's ESR meter kit; it's also knows as the Dick
Smith kit as DSE was an early source for it.
There seems to be a "space age" version out now in a cool blue case.
Doesn't have quite the nerdish cred of the earlier project box. ;-)
http://www.anatekcorp.com/blueesr.htm for one source (among many).
--
Rich Webb Norfolk, VA
AFAIK the Bob Parker/DSE ESR meter is no longer produced, I got one from a
UK distributor that had remaining stock.
Correct, they've moved on to the new version in the transparent case.
http://www.rf4u.co.uk/products.html
--
Rich Webb Norfolk, VA
ian field
Guest
Mon Feb 08, 2010 12:35 am
"Rich Webb" <bbew.ar_at_mapson.nozirev.ten> wrote in message
news:075um5dm8elaebl12bnn0udu1vlu05liel_at_4ax.com...
Quote:
On Sun, 7 Feb 2010 18:34:13 -0000, "ian field"
gangprobing.alien_at_ntlworld.com> wrote:
"Rich Webb" <bbew.ar_at_mapson.nozirev.ten> wrote in message
news:0ftrm5d1am2o2k2k7ns707k6rn2ucd30od_at_4ax.com...
On Sat, 6 Feb 2010 16:15:14 -0600, "RogerN" <regor_at_midwest.net> wrote:
Anyone have any info on capacitor equivalent series resistance meters?
I
thought Capacitor Wizard used to be highly recommended. What are the
recommended units today? Wondering if there was something better for
the
money now.
Sometimes I mess with older computers or controls that don't seem to
work
for whatever reason, I'm thinking capacitors would be likely to go bad
over
time as far as ESR going to high.
Look around for Bob Parker's ESR meter kit; it's also knows as the Dick
Smith kit as DSE was an early source for it.
There seems to be a "space age" version out now in a cool blue case.
Doesn't have quite the nerdish cred of the earlier project box. ;-)
http://www.anatekcorp.com/blueesr.htm for one source (among many).
--
Rich Webb Norfolk, VA
AFAIK the Bob Parker/DSE ESR meter is no longer produced, I got one from a
UK distributor that had remaining stock.
Correct, they've moved on to the new version in the transparent case.
http://www.rf4u.co.uk/products.html
When I have the cash to spare, I plan to go for the Atlas one with LCD and
safe capacitor discharging function.
At the moment I can't justify it as I already have an ESR meter and other
tools for checking the lower values below the DSE's minimum range.
Paul Hovnanian P.E.
Guest
Mon Feb 08, 2010 1:44 am
I use a General Radio Type 1611-A capacitance test bridge.
http://www.flickr.com/photos/kb1awv/2085909780/in/set-72157603057525609/
--
Paul Hovnanian mailto:Paul_at_Hovnanian.com
------------------------------------------------------------------
Bloody typical, they've gone back to metric without telling us.
Jim Thompson
Guest
Mon Feb 08, 2010 2:34 am
On Sun, 07 Feb 2010 16:44:25 -0700, "Paul Hovnanian P.E."
<Paul_at_Hovnanian.com> wrote:
Quote:
Photo technique: Get slightly off-axis with the camera, and turn out
any room lights. I then process thru Paint Shop Pro to tweak the
brightness and contrast. (I just got Photo Shop, but don't know how
to use it yet
...Jim Thompson
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at
http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Jim Yanik
Guest
Mon Feb 08, 2010 3:24 am
Jim Thompson <To-Email-Use-The-Envelope-Icon_at_My-Web-Site.com> wrote in
news:ksmum5do0v7n3ka2ebn3cm03tkvv2mnkfu_at_4ax.com:
Quote:
On Sun, 07 Feb 2010 16:44:25 -0700, "Paul Hovnanian P.E."
Paul_at_Hovnanian.com> wrote:
I use a General Radio Type 1611-A capacitance test bridge.
http://www.flickr.com/photos/kb1awv/2085909780/in/set-72157603057525609/
Photo technique: Get slightly off-axis with the camera, and turn out
any room lights. I then process thru Paint Shop Pro to tweak the
brightness and contrast. (I just got Photo Shop, but don't know how
to use it yet :-)
...Jim Thompson
you can put a layer or two of toilet paper or tissue over the flash lens to
diffuse it's output.Makes for a better picture.
--
Jim Yanik
jyanik
at
localnet
dot com
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