Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default Cheap ESR Meter

Looking at two budget meters, the Dick Smith, available from AU for $44
US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

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Arfa Daily
 
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Default Cheap ESR Meter


wrote in message
oups.com...
Looking at two budget meters, the Dick Smith, available from AU for $44
US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

The Dick Smith meter is the one designed by Bob Parker, who pops up on here
from time to time. I have had one in daily use now for several years, and I
can recommend it without reservation. It has a very clear unambiguous
readout, and is autoranging. It also has an automatic offset feature to zero
out the probe and lead resistances. It has withstood everything that a busy
workshop has thrown at it, without once failing on me. It paid for itself in
the first couple of repairs that it was used for.

The kit does not contain any particularly small parts, and is well
documented. If you can solder reasonably well, and your iron has a
reasonably small tip, and you can carefully follow a set of instructions, I
think that you would be able to manage it just about. I think that it is
also available ready built for a very reasonable extra amount, if you really
weren't confidant to build it.

Arfa


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Wayne Tiffany
 
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Default Cheap ESR Meter

My worst experience with the Dick Smith one was that I screwed up and
grabbed those leads instead of my VOM. Consequently I put 120VAC across it
and severely let the smoke out - time for a new one. Now I have two red
leads on it to make it more apparent that I don't have the VOM leads.

Other than that, it has worked well for me. Oh, the kit was also fine -
just follow the directions and put on the smallest items first. That way
it's easier to have the board be stable for soldering. I also decided that
I would take one value of resistor, and install all of that value at one
time. Kind of helped me make sure that I got the right ones in the right
places. I knew that I had to find enough homes for them until I ran out.

WT

"Arfa Daily" wrote in message
...

wrote in message
oups.com...
Looking at two budget meters, the Dick Smith, available from AU for $44
US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

The Dick Smith meter is the one designed by Bob Parker, who pops up on
here from time to time. I have had one in daily use now for several years,
and I can recommend it without reservation. It has a very clear
unambiguous readout, and is autoranging. It also has an automatic offset
feature to zero out the probe and lead resistances. It has withstood
everything that a busy workshop has thrown at it, without once failing on
me. It paid for itself in the first couple of repairs that it was used
for.

The kit does not contain any particularly small parts, and is well
documented. If you can solder reasonably well, and your iron has a
reasonably small tip, and you can carefully follow a set of instructions,
I think that you would be able to manage it just about. I think that it is
also available ready built for a very reasonable extra amount, if you
really weren't confidant to build it.

Arfa




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spudnuty
 
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Arfa Daily wrote:
wrote in message
oups.com...
Looking at two budget meters, the Dick Smith, available from AU for $44
US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

The Dick Smith meter is the one designed by Bob Parker, who pops up on here
from time to time. I have had one in daily use now for several years, and I
can recommend it without reservation. It has a very clear unambiguous
readout, and is autoranging. It also has an automatic offset feature to zero
out the probe and lead resistances. It has withstood everything that a busy
workshop has thrown at it, without once failing on me. It paid for itself in
the first couple of repairs that it was used for.

The kit does not contain any particularly small parts, and is well
documented. If you can solder reasonably well, and your iron has a
reasonably small tip, and you can carefully follow a set of instructions, I
think that you would be able to manage it just about. I think that it is
also available ready built for a very reasonable extra amount, if you really
weren't confidant to build it.

Arfa


I'll second that, my experience with this meter is exactly that of
Arfa's. It's paid for itself 50 times over. I would emphasize "solder
well" tho'
Richard

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Mr. Land
 
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Default Cheap ESR Meter

Looking at two budget meters, the Dick Smith, available from AU for $44

US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

I just built the Dick Smith kit. Very nice kit, I thought. The parts
seemed high quality, except for the battery holder arrangement, which I
thought was pretty lame (two multiple AA cell holders "mechanically
connected" by soldering a pin of one to the other). The instructions
weren't bad, although the reference numbers for the figures were
mismatched, which was a bit confusing at first.

The PCB layout matched the provided parts very well, and it ran
perfectly the very first time I powered it up (which, I should probably
add, does not happen to me very often.)

Cheers.



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Ken Weitzel
 
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Wayne Tiffany wrote:

My worst experience with the Dick Smith one was that I screwed up and
grabbed those leads instead of my VOM. Consequently I put 120VAC across it
and severely let the smoke out - time for a new one. Now I have two red
leads on it to make it more apparent that I don't have the VOM leads.

Other than that, it has worked well for me. Oh, the kit was also fine -
just follow the directions and put on the smallest items first. That way
it's easier to have the board be stable for soldering. I also decided that
I would take one value of resistor, and install all of that value at one
time. Kind of helped me make sure that I got the right ones in the right
places. I knew that I had to find enough homes for them until I ran out.

WT


What!?! For shame! Total disregard for the *supposed* to be parts left
over rule?

Ken

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OK, sounds like the Dick Smith kit is the way to go. Now to decide
whether to get it from Canada or our world cup bound friends at the end
of the earth...

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Bob Shuman
 
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Please post the source ... at $44 for the kit you found a bargain.

I too built the kit and had no problems. Took about an hour or two as I
recall and worked first time. My only complaint with the kit was the poor
color coding on the resistors was hard to read and required constantly
removing my glasses ... but then again my eyesight isn't what it used to be
either.

Bob

wrote in message
oups.com...
OK, sounds like the Dick Smith kit is the way to go. Now to decide
whether to get it from Canada or our world cup bound friends at the end
of the earth...



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Dave Plowman (News)
 
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Default Cheap ESR Meter

In article ,
Wayne Tiffany wrote:
My worst experience with the Dick Smith one was that I screwed up and
grabbed those leads instead of my VOM. Consequently I put 120VAC across it
and severely let the smoke out - time for a new one. Now I have two red
leads on it to make it more apparent that I don't have the VOM leads.


Yes. I've recently built one and it's very good. But why supply standard
test leads while the sockets are the same colour? Surely you could open
the test lead packs and pair them up to the same colour - wouldn't matter
if red or black.

--
*Errors have been made. Others will be blamed.

Dave Plowman London SW
To e-mail, change noise into sound.
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The $44 US is $69 Australian dollars, the link is he

http://www.dse.com.au/cgi-bin/dse.st...uct/View/K7214

I have an email in for shipping costs and whether they will ship to the
US.

The other source is $82 shipped and is in Canada.

http://www.flippers.com/esrktmtr.html



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Jim Yanik
 
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"Dave Plowman (News)" wrote in
:

In article ,
Wayne Tiffany wrote:
My worst experience with the Dick Smith one was that I screwed up and
grabbed those leads instead of my VOM. Consequently I put 120VAC
across it and severely let the smoke out - time for a new one. Now I
have two red leads on it to make it more apparent that I don't have
the VOM leads.


Yes. I've recently built one and it's very good. But why supply
standard test leads while the sockets are the same colour? Surely you
could open the test lead packs and pair them up to the same colour -
wouldn't matter if red or black.


Just put some colored heat-shrink tubing on the ESR meter's leads at the
probe end;that IDs them.

Paint is not going to stick well to flexible plastic insulation.

--
Jim Yanik
jyanik
at
kua.net
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Jim Yanik
 
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"Mr. Land" wrote in
ups.com:

Looking at two budget meters, the Dick Smith, available from AU for $44

US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

I just built the Dick Smith kit. Very nice kit, I thought. The parts
seemed high quality, except for the battery holder arrangement, which I
thought was pretty lame (two multiple AA cell holders "mechanically
connected" by soldering a pin of one to the other). The instructions
weren't bad, although the reference numbers for the figures were
mismatched, which was a bit confusing at first.

The PCB layout matched the provided parts very well, and it ran
perfectly the very first time I powered it up (which, I should probably
add, does not happen to me very often.)

Cheers.


*My* DSE ESR meter is powered by a single 9v battery -with the usual 9v
battery clip. (free-floating under a piece of foam)

What's this about AA batteries? Did the meter kit change?

--
Jim Yanik
jyanik
at
kua.net
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Dave Plowman (News)
 
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Default Cheap ESR Meter

In article ,
Bob Shuman wrote:
I too built the kit and had no problems. Took about an hour or two as I
recall and worked first time. My only complaint with the kit was the
poor color coding on the resistors was hard to read and required
constantly removing my glasses ... but then again my eyesight isn't what
it used to be either.


Don't think it's just you. Those metal film ones with the blue body are
near impossible to read. I just measured them - after eliminating the
obvious ones which were more than one and still on their paper links . ;-)

--
*Real women don't have hot flashes, they have power surges.

Dave Plowman London SW
To e-mail, change noise into sound.
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Dave Plowman (News)
 
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In article ,
Jim Yanik wrote:
*My* DSE ESR meter is powered by a single 9v battery -with the usual 9v
battery clip. (free-floating under a piece of foam)


What's this about AA batteries? Did the meter kit change?


Mine came with AAA holders. Something about there being a confusion about
using a PP3 in the instructions. I don't like AAA unless size matters as
in the UK they cost the same as AA. So I changed to AA since I had holders
'in stock' ;-)

--
*(over a sketch of the titanic) "The boat sank - get over it

Dave Plowman London SW
To e-mail, change noise into sound.
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Arfa Daily
 
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"Dave Plowman (News)" wrote in message
...
In article ,
Jim Yanik wrote:
*My* DSE ESR meter is powered by a single 9v battery -with the usual 9v
battery clip. (free-floating under a piece of foam)


What's this about AA batteries? Did the meter kit change?


Mine came with AAA holders. Something about there being a confusion about
using a PP3 in the instructions. I don't like AAA unless size matters as
in the UK they cost the same as AA. So I changed to AA since I had holders
'in stock' ;-)

--
*(over a sketch of the titanic) "The boat sank - get over it

Dave Plowman London SW
To e-mail, change noise into sound.


Mine's a few years old now, but came with a standard 9v battery holder.
Mind, I did have to complain to Bob about poor battery life. My first
battery only lasted about 2 years ... !!

Arfa




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bigdaddy
 
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On Fri, 10 Feb 2006 01:49:16 GMT, "Arfa Daily"
wrote:


"Dave Plowman (News)" wrote in message
...
In article ,
Jim Yanik wrote:
*My* DSE ESR meter is powered by a single 9v battery -with the usual 9v
battery clip. (free-floating under a piece of foam)


What's this about AA batteries? Did the meter kit change?


Mine came with AAA holders. Something about there being a confusion about
using a PP3 in the instructions. I don't like AAA unless size matters as
in the UK they cost the same as AA. So I changed to AA since I had holders
'in stock' ;-)

--
*(over a sketch of the titanic) "The boat sank - get over it

Dave Plowman London SW
To e-mail, change noise into sound.


Mine's a few years old now, but came with a standard 9v battery holder.
Mind, I did have to complain to Bob about poor battery life. My first
battery only lasted about 2 years ... !!

Arfa



Hi, are these meters available in UK.

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GregS
 
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In article , Jim Yanik wrote:
"Dave Plowman (News)" wrote in
:

In article ,
Wayne Tiffany wrote:
My worst experience with the Dick Smith one was that I screwed up and
grabbed those leads instead of my VOM. Consequently I put 120VAC
across it and severely let the smoke out - time for a new one. Now I
have two red leads on it to make it more apparent that I don't have
the VOM leads.


Yes. I've recently built one and it's very good. But why supply
standard test leads while the sockets are the same colour? Surely you
could open the test lead packs and pair them up to the same colour -
wouldn't matter if red or black.


Just put some colored heat-shrink tubing on the ESR meter's leads at the
probe end;that IDs them.

Paint is not going to stick well to flexible plastic insulation.


I use some short leads with two small alligator clips.

greg
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Bob Parker
 
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I don't know anyone who doesn't have difficulty reading those
atrocious blue-bodied 1% resistors, me included/especially. That's why
the Mark 2 meter's kit notes includes this little caution:

"Note that the kit for the Mk.2 version
contains 1% resistors. It’s notoriously
difficult to correctly identify the colour
bands on these, so check each one’s
value with an ohmmeter before soldering
it to the board."


Bob



On Thu, 09 Feb 2006 23:03:41 +0000 (GMT), "Dave Plowman (News)"
wrote:

In article ,
Bob Shuman wrote:
I too built the kit and had no problems. Took about an hour or two as I
recall and worked first time. My only complaint with the kit was the
poor color coding on the resistors was hard to read and required
constantly removing my glasses ... but then again my eyesight isn't what
it used to be either.


Don't think it's just you. Those metal film ones with the blue body are
near impossible to read. I just measured them - after eliminating the
obvious ones which were more than one and still on their paper links . ;-)


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Bob Parker
 
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Apologies about that!
I was replacing the batteries about once per 3 months with typical
use, though some people complain that they hardly last any time at
all. Maybe they always leave the meter on until it turns itself off?
The 78L05 regulator can be replaced with a low dropout voltage one,
which extends battery life a bit.

Cheers
Bob


On Fri, 10 Feb 2006 01:49:16 GMT, "Arfa Daily"
wrote:

Mine's a few years old now, but came with a standard 9v battery holder.
Mind, I did have to complain to Bob about poor battery life. My first
battery only lasted about 2 years ... !!

Arfa



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Dave Plowman (News)
 
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In article ,
bigdaddy wrote:
Hi, are these meters available in UK.


Think I heard they are, but I imported mine from Canada.

--
*When I'm not in my right mind, my left mind gets pretty crowded *

Dave Plowman London SW
To e-mail, change noise into sound.


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Ken G.
 
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I see where the D.S. meter works well and gets great reports but i must
say cheap is not always better .
I would scrape up the extra $ and get a Capacitor Wizard . Its got an
analog meter and beeper . The 4AA batterys last a long time . I know
many are on a budget but the luxury of the Cap Wizard is worth the extra
$ . maybe these show up on ebay by now ?

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James T. White
 
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wrote in message
oups.com
Looking at two budget meters, the Dick Smith, available from AU for
$44 US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...



I can't comment on those ESR meters, but if you are willing to consider
something a bit more costly, take a look at the Peak ESR60
(http://www.peakelec.co.uk/acatalog/jz_esr60.html). It reads both the
capacitance and ESR which can be handy if your DVM doesn't have a
capacitance scale.

--
James T. White


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GregS
 
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Default Cheap ESR Meter

In article , Bob Parker wrote:
I don't know anyone who doesn't have difficulty reading those
atrocious blue-bodied 1% resistors, me included/especially. That's why
the Mark 2 meter's kit notes includes this little caution:

"Note that the kit for the Mk.2 version
contains 1% resistors. It’s notoriously
difficult to correctly identify the colour
bands on these, so check each one’s
value with an ohmmeter before soldering
it to the board."


I was just thinking. What are all the other uses one could use the meter
for. Like measuring resistors, coils, ??? I have used mine to measure
low ohms resistance in wiring.

greg
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Leonard Caillouet
 
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I have both the DSE (made from kit) and the Atlas. I carry the Atlas and
use it almost exclusively because of the size. If you get one get the hands
free kit.

Building the kit is time comsuming but not hard. Great value product.

Leonard

"James T. White" wrote in message
...
wrote in message
oups.com
Looking at two budget meters, the Dick Smith, available from AU for
$44 US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...



I can't comment on those ESR meters, but if you are willing to consider
something a bit more costly, take a look at the Peak ESR60
(http://www.peakelec.co.uk/acatalog/jz_esr60.html). It reads both the
capacitance and ESR which can be handy if your DVM doesn't have a
capacitance scale.

--
James T. White




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Jim Yanik
 
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Bob Parker wrote in
:

Apologies about that!
I was replacing the batteries about once per 3 months with typical
use, though some people complain that they hardly last any time at
all. Maybe they always leave the meter on until it turns itself off?
The 78L05 regulator can be replaced with a low dropout voltage one,
which extends battery life a bit.

Cheers
Bob


On Fri, 10 Feb 2006 01:49:16 GMT, "Arfa Daily"
wrote:

Mine's a few years old now, but came with a standard 9v battery holder.
Mind, I did have to complain to Bob about poor battery life. My first
battery only lasted about 2 years ... !!

Arfa




Bob.did the ESR meter kit change from using one 9v battery to 6 AAA cells?
I haven't had much problem with the 9V's battery life.

--
Jim Yanik
jyanik
at
kua.net


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Arfa Daily
 
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"GregS" wrote in message
...
In article , Bob Parker
wrote:
I don't know anyone who doesn't have difficulty reading those
atrocious blue-bodied 1% resistors, me included/especially. That's why
the Mark 2 meter's kit notes includes this little caution:

"Note that the kit for the Mk.2 version
contains 1% resistors. It's notoriously
difficult to correctly identify the colour
bands on these, so check each one's
value with an ohmmeter before soldering
it to the board."


I was just thinking. What are all the other uses one could use the meter
for. Like measuring resistors, coils, ??? I have used mine to measure
low ohms resistance in wiring.

greg


It's good for reading non-dynamic resistances, like low value resistors, but
maybe not some wirewounds, which have significant inductance. You can also
use it, if you use very sharp tipped probes and make sure that it is
correctly zero'd, to chase down rail shorts on PCBs. There is enough
resistance in the copper tracks to be able to see the resistance dropping,
as you probe the tracks, and get closer to the shorted IC or decoupling cap,
or whatever is causing the short. Put a deliberate short across a board and
try it. Obviously, the thinner the tracks, the more it shows up. You can't
measure coils with it because these represent a dynamic resistance, of
opposite characteristic to a capacitor, when tested with an AC source, as
the ESR meter produces. They will represent a high AC resistance when
excited in this way, and it will be outside the 100 ohm range of the meter.
Even if it came up less than that, it would still not be an accurate
representation of the true DC ohmic value of the coil. It is fairly easy to
put together a low ohms meter with an opamp, for measuring coils. Could be
useful for checking things like EW modulator coils for shorted turns.

Arfa


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Arfa Daily
 
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"Bob Parker" wrote in message
...
Apologies about that!
I was replacing the batteries about once per 3 months with typical
use, though some people complain that they hardly last any time at
all. Maybe they always leave the meter on until it turns itself off?
The 78L05 regulator can be replaced with a low dropout voltage one,
which extends battery life a bit.

Cheers
Bob



Must be my twisted sense of humour ... I was being facetious when I said the
battery only lasted 2 years !! The battery life is really very good, and I
honestly haven't got any complaints with it lasting 2 years. Personally, I
prefer the digital display to the analogue one on the other ESR meters. It
is completely unambiguous, and when it says " zero ", it really is. Also, I
don't think that you can call Bob's meter ' cheap ' by any stretch of the
imagination. For sure, it doesn't COST a lot, but CHEAP, it's not. Remember
that it is uP controlled, and does some clever calculations to arrive at the
result. Most of the analogue ones don't work on that principle.

The meter is available in the UK from Satcure. Go to

www.satcure.co.uk/accs/page6.htm#esr

It's called the " Genie " in the UK

Arfa


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Bob Parker
 
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On Fri, 10 Feb 2006 22:41:26 GMT, "Arfa Daily"
wrote:


"Bob Parker" wrote in message
.. .
Apologies about that!

Must be my twisted sense of humour ... I was being facetious when I said the
battery only lasted 2 years !!


I knew what you meant- I was being a bit silly when I apologized. I
should have put a "wink" smiley there instead!

I thought I'd make a few general comments about battery life and
extending it while I had the chance.

Glad your ESR meter's working well for you!

Regards
Bob


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Bob Parker
 
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Hi again Jim,
You've had that meter for a long time now!
Yeh, when we decided to do a minor upgrade of the meter, we
thought that the battery needed to be looked at. Not so much because
of operating life, but because so many people either didn't like or
couldn't understand the idea of holding the 9V battery in place with a
piece of foam plastic between it and the bottom of the circuit board.
It's worked perfectly for me since 1995.
The only practical alternative we could think of was to use 6 x AAA
cells in holders stuck to the bottom of the plastic case. So the Mark
2 meter kit contains two AAA holders which have to be connected in
series.

Rgds
Bob


On 10 Feb 2006 16:38:07 GMT, Jim Yanik wrote:

Bob.did the ESR meter kit change from using one 9v battery to 6 AAA cells?
I haven't had much problem with the 9V's battery life.


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Dave Plowman (News)
 
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In article ,
Bob Parker wrote:
Hi again Jim,
You've had that meter for a long time now!
Yeh, when we decided to do a minor upgrade of the meter, we
thought that the battery needed to be looked at. Not so much because
of operating life, but because so many people either didn't like or
couldn't understand the idea of holding the 9V battery in place with a
piece of foam plastic between it and the bottom of the circuit board.
It's worked perfectly for me since 1995.
The only practical alternative we could think of was to use 6 x AAA
cells in holders stuck to the bottom of the plastic case. So the Mark
2 meter kit contains two AAA holders which have to be connected in
series.


I'd have preferred AA cells. They cost the same in the UK but last twice
as long. They're also easier to get.

The other alternative would have been a case mounted PP3 battery holder so
you could quickly change the battery.

However, thanks for the kit. It's super.

--
*Hard work has a future payoff. Laziness pays off NOW.

Dave Plowman London SW
To e-mail, change noise into sound.


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Jim Yanik
 
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"Dave Plowman (News)" wrote in
:

In article ,
Bob Parker wrote:
Hi again Jim,
You've had that meter for a long time now!
Yeh, when we decided to do a minor upgrade of the meter, we
thought that the battery needed to be looked at. Not so much because
of operating life, but because so many people either didn't like or
couldn't understand the idea of holding the 9V battery in place with
a piece of foam plastic between it and the bottom of the circuit
board. It's worked perfectly for me since 1995.


I was thinking about kludging up some sort of 9V battery clip to glue to
the case bottom.
(say,if you ever get to Orlando,Florida,check out Skycraft Surplus;it's a
hobbyists wet dream.Oh,the Disney/Universal/SeaWorld attractions are
fun,too.)

I also wonder how one of the 9V lithium batteries would last comparable to
an ordinary 9V alkaline? It'd cost more,but longer life and less chance of
leakage might be beneficial.

The only practical alternative we could think of was to use 6 x
AAA
cells in holders stuck to the bottom of the plastic case. So the Mark
2 meter kit contains two AAA holders which have to be connected in
series.


I'd have preferred AA cells. They cost the same in the UK but last
twice as long. They're also easier to get.


SIX AA's mean you'd need a bigger case.

In the case of the DSE ESR meter,battery life with AAA's(vs AA's) is not
going to matter much;the cells will probably LEAK first.


The other alternative would have been a case mounted PP3 battery
holder so you could quickly change the battery.

However, thanks for the kit. It's super.


Agreed!

--
Jim Yanik
jyanik
at
kua.net
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Dave Plowman (News)
 
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Default Cheap ESR Meter

In article ,
Jim Yanik wrote:
I'd have preferred AA cells. They cost the same in the UK but last
twice as long. They're also easier to get.


SIX AA's mean you'd need a bigger case.


No - plenty room in my one. Perhaps the design of the case has changed?

In the case of the DSE ESR meter,battery life with AAA's(vs AA's) is not
going to matter much;the cells will probably LEAK first.


I'd not expect any quality battery to leak in three years or so.

--
*Errors have been made. Others will be blamed.

Dave Plowman London SW
To e-mail, change noise into sound.
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Arfa Daily
 
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"Jim Yanik" wrote in message
.. .
"Dave Plowman (News)" wrote in
:

In article ,
Bob Parker wrote:
Hi again Jim,
You've had that meter for a long time now!
Yeh, when we decided to do a minor upgrade of the meter, we
thought that the battery needed to be looked at. Not so much because
of operating life, but because so many people either didn't like or
couldn't understand the idea of holding the 9V battery in place with
a piece of foam plastic between it and the bottom of the circuit
board. It's worked perfectly for me since 1995.


I was thinking about kludging up some sort of 9V battery clip to glue to
the case bottom.
(say,if you ever get to Orlando,Florida,check out Skycraft Surplus;it's a
hobbyists wet dream.Oh,the Disney/Universal/SeaWorld attractions are
fun,too.)

I also wonder how one of the 9V lithium batteries would last comparable to
an ordinary 9V alkaline? It'd cost more,but longer life and less chance of
leakage might be beneficial.

The only practical alternative we could think of was to use 6 x
AAA
cells in holders stuck to the bottom of the plastic case. So the Mark
2 meter kit contains two AAA holders which have to be connected in
series.


I'd have preferred AA cells. They cost the same in the UK but last
twice as long. They're also easier to get.


SIX AA's mean you'd need a bigger case.

In the case of the DSE ESR meter,battery life with AAA's(vs AA's) is not
going to matter much;the cells will probably LEAK first.


The other alternative would have been a case mounted PP3 battery
holder so you could quickly change the battery.

However, thanks for the kit. It's super.


Agreed!

--
Jim Yanik
jyanik
at
kua.net


Jim, can you mail me direct with the location of that place. I go over there
at least once a year, and I'm getting fed up of Disney now ...

Arfa


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Chris Jones
 
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Default Cheap ESR Meter

Ken G. wrote:

I see where the D.S. meter works well and gets great reports but i must
say cheap is not always better .
I would scrape up the extra $ and get a Capacitor Wizard . Its got an
analog meter and beeper . The 4AA batterys last a long time . I know
many are on a budget but the luxury of the Cap Wizard is worth the extra
$ . maybe these show up on ebay by now ?


Do you own either of these instruments, or on what basis do you make your
recommendation?

I have the Bob Parker one and it is perfect for the job.

Chris
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Chris Jones
 
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Wayne Tiffany wrote:

My worst experience with the Dick Smith one was that I screwed up and
grabbed those leads instead of my VOM. Consequently I put 120VAC across
it
and severely let the smoke out - time for a new one. Now I have two red
leads on it to make it more apparent that I don't have the VOM leads.

Other than that, it has worked well for me. Oh, the kit was also fine -
just follow the directions and put on the smallest items first. That way
it's easier to have the board be stable for soldering. I also decided
that I would take one value of resistor, and install all of that value at
one
time. Kind of helped me make sure that I got the right ones in the right
places. I knew that I had to find enough homes for them until I ran out.

WT

"Arfa Daily" wrote in message
...

wrote in message
oups.com...
Looking at two budget meters, the Dick Smith, available from AU for $44
US + shipping and the MATelectronics MUL-3333 for $50 + shipping.
Anyone have experience with either? Is the kit doable for a rank
beginner? I do have a Weller station, will travel...

The Dick Smith meter is the one designed by Bob Parker, who pops up on
here from time to time. I have had one in daily use now for several
years, and I can recommend it without reservation. It has a very clear
unambiguous readout, and is autoranging. It also has an automatic offset
feature to zero out the probe and lead resistances. It has withstood
everything that a busy workshop has thrown at it, without once failing on
me. It paid for itself in the first couple of repairs that it was used
for.

The kit does not contain any particularly small parts, and is well
documented. If you can solder reasonably well, and your iron has a
reasonably small tip, and you can carefully follow a set of instructions,
I think that you would be able to manage it just about. I think that it
is also available ready built for a very reasonable extra amount, if you
really weren't confidant to build it.

Arfa


On my one I put some very very big diodes anti-parallel directly across the
4mm terminals, (not on the PCB). I am not sure what would happen if it
were connected to the mains (line) but I think it now has at least half a
chance of surviving until the main circuit breaker disconnects it, since
diodes often fail short circuit. Anyway I hope not to test this.

Chris



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Ken G.
 
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Do you own either of these instruments, or on what basis do you make
your recommendation?

Yes i have had a Cap Wizard for years .
When i was looking into buying one i studied the internet and peoples
reviews of several testers .
The Bob Barker is of coarse a very good unit no doubt .
The Cap Wizard is quicker to use and detects even the hard to detect
caps under circuitry . Its like going from the ``test light`` to a
deluxe instrument . You dont need to read and calculate any numbers ,
just listen for a beep or/and look at the meter

I have the Bob Parker one and it is perfect for the job.
Chris

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Bob Parker
 
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Hi Dave,
We'd have preferred AA cells too! Unfortunately their holders are
too large to fit in the case.
We considered changing the case, but there weren't any with a 9V
battery door with suitable dimensions for the PCB etc.
With this kind of thing, a lot of compromises have to be made. Back
in 1995, everyone assumed that a kit for an ESR meter would never
become popular because it's such a specialized instrument. If I'd
known it was going to take off like it did, I'd have designed it
differently.
I'm very pleased that it's been helpful to so many of my fellow
technicians!!

Cheers
Bob


On Sat, 11 Feb 2006 10:31:09 +0000 (GMT), "Dave Plowman (News)"
wrote:

I'd have preferred AA cells. They cost the same in the UK but last twice
as long. They're also easier to get.

The other alternative would have been a case mounted PP3 battery holder so
you could quickly change the battery.

However, thanks for the kit. It's super.


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Bob Parker
 
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On Sat, 11 Feb 2006 18:12:50 +0000 (GMT), "Dave Plowman (News)"
wrote:

In article ,
Jim Yanik wrote:
I'd have preferred AA cells. They cost the same in the UK but last
twice as long. They're also easier to get.


SIX AA's mean you'd need a bigger case.


No - plenty room in my one. Perhaps the design of the case has changed?


When I met up with the guys in the Dick Smith Kits Dept to plan
the Mark 2 revision of the ESR meter, we checked the size of available
AA cell holders and concluded that there was no way they'd fit in the
space available. Possibly the ones you've seen are more "slimline"
than the kind DSE sells? AAA cells are just as expensive down here,
and it's probably the same in the USA too.


In the case of the DSE ESR meter,battery life with AAA's(vs AA's) is not
going to matter much;the cells will probably LEAK first.


I'd not expect any quality battery to leak in three years or so.


I don't remember seeing any Energizer or Eveready alkaline cell or
battery ever leak. But Duracells are a different story, unfortunately.
I stay away from them now.


Cheers
Bob
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Bob Parker
 
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You can get a satellite's view of the whole area. If you have Google
Earth installed, downloading and running this tiny file should make it
all happen:
http://members.ozemail.com.au/~bobpar/Skycraft Parts & Surplus.kmz


Bob


On 11 Feb 2006 22:27:47 GMT, Jim Yanik wrote:

Skycraft's on Fairbanks Ave.about 500 feet east from I-4.(in Winter Park)
Coming from I-4,get off at Fairbanks Ave.

You can't miss it,it's got a red rocket bolted to the building.


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