"Michael" wrote in message
...
wrote:
(snip)
pulling on soft-drawn copper wire is going to distort it
slightly so the measurement is going to be on the small
side. Snipping off ten or twenty short lengths, then
measuring the total width and dividing by the number of
lengths will be a bit better in accuracy.
(snip)

Really? Hmmmm ...

Bumfuzzles me why you'd want to cut it up into a bunch of hard-to-handle
strands. Just wind it around a dowel as someone else suggested.

In sci.electronics.design "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.

I do.

I haven't got a LCD one, but a magazine sends me one every year.
Ok, it's made of plastic, but it works fine, and is accurate enough for
me, seeming to be within about .05mm

I'd like an LCD one of course.

On 09 Apr 2005 18:32:49 GMT, the renowned Ian Stirling
wrote:

In sci.electronics.design "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.

I do.

I haven't got a LCD one, but a magazine sends me one every year.
Ok, it's made of plastic, but it works fine, and is accurate enough for
me, seeming to be within about .05mm

I'd like an LCD one of course.

You should shell out the $20 or whatever then (or $100 and get a
Mitutoyo or other brand name with a bit better "feel"). I use mine all
the time- for rough (0.001") width, diameter, inside diameter
(rougher) and depth measurements. A micrometer is useful for precision
measurements, but less necessary for an EE.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

In sci.electronics.design Spehro Pefhany wrote:
On 09 Apr 2005 18:32:49 GMT, the renowned Ian Stirling
wrote:

In sci.electronics.design "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.

I do.

I haven't got a LCD one, but a magazine sends me one every year.
Ok, it's made of plastic, but it works fine, and is accurate enough for
me, seeming to be within about .05mm

I'd like an LCD one of course.

You should shell out the $20 or whatever then (or $100 and get a
Mitutoyo or other brand name with a bit better "feel"). I use mine all
the time- for rough (0.001") width, diameter, inside diameter
(rougher) and depth measurements. A micrometer is useful for precision
measurements, but less necessary for an EE.

Unfortunately, $20 is quite a lot of money at the moment :/

I don't have any real need for it - I've got a 0-25mm micrometer, and
the plastic caliper fills in for the rest.

I don't have any tools that can maintain that sort of tollerance anyway,
so my need is less.

On 09 Apr 2005 20:52:54 GMT, the renowned Ian Stirling
wrote:

In sci.electronics.design Spehro Pefhany wrote:
On 09 Apr 2005 18:32:49 GMT, the renowned Ian Stirling
wrote:

In sci.electronics.design "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.

I do.

I haven't got a LCD one, but a magazine sends me one every year.
Ok, it's made of plastic, but it works fine, and is accurate enough for
me, seeming to be within about .05mm

I'd like an LCD one of course.

You should shell out the $20 or whatever then (or $100 and get a
Mitutoyo or other brand name with a bit better "feel"). I use mine all
the time- for rough (0.001") width, diameter, inside diameter
(rougher) and depth measurements. A micrometer is useful for precision
measurements, but less necessary for an EE.

Unfortunately, $20 is quite a lot of money at the moment :/

Mm.. 'kay. Hope things get better fast for you.

I don't have any real need for it - I've got a 0-25mm micrometer, and
the plastic caliper fills in for the rest.

I don't have any tools that can maintain that sort of tollerance anyway,
so my need is less.

You don't have a file? ;-) Just double-checking lead pitch etc. is
worth a lot by times.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

In sci.electronics.design Spehro Pefhany wrote:
On 09 Apr 2005 20:52:54 GMT, the renowned Ian Stirling
wrote:

In sci.electronics.design Spehro Pefhany wrote:
On 09 Apr 2005 18:32:49 GMT, the renowned Ian Stirling
wrote:

In sci.electronics.design "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

"Ian Stirling" wrote in message
...
In sci.electronics.design Albert wrote:
Does anyone know how to measure or determine the wire size. I have
tons of motors, solenoids, and similar items. I need some #24 wire
and
some #30 for a coil, but have to be sure regarding the wire diameter
as it's a critical ap and the author of the article says 'don't
substitute'.

Micrometer.
Vernier caliper may also work.
Either under $30US.

I don't believe anyone uses vernier calipers anymore. I've got a Helios
dial caliper made a long time ago in Deutschland, but nowadays a caliper
with a LCD is probably a lot cheaper.

I'd like an LCD one of course.

You should shell out the $20 or whatever then (or $100 and get a
Mitutoyo or other brand name with a bit better "feel"). I use mine all
the time- for rough (0.001") width, diameter, inside diameter
(rougher) and depth measurements. A micrometer is useful for precision
measurements, but less necessary for an EE.

Unfortunately, $20 is quite a lot of money at the moment :/

Mm.. 'kay. Hope things get better fast for you.

I don't have any real need for it - I've got a 0-25mm micrometer, and
the plastic caliper fills in for the rest.

I don't have any tools that can maintain that sort of tollerance anyway,
so my need is less.

You don't have a file? ;-) Just double-checking lead pitch etc. is
worth a lot by times.

True.
I don't really have that much that I need to hold accurate tollerances
for anyway.

The file is a much underestimated metalworking tool.

"Watson A.Name - "Watt Sun, the Dark Remover"" wrote
in message ...

BTW, speaking of tapes.. I read that the company that made Irish and
Ampex tape has closed. Looks like everyone has been going to CD-Rs.

http://members4.boardhost.com/culturama/msg/3217.html

Who still makes audio recording tape? I thought Ampex was the last.

They're not dead yet. See this:
http://www.wtvm.com/Global/story.asp...9&nav=8fapXvG5

"Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:
(snip)
BTW, speaking of tapes.. I read that the company that made Irish and
Ampex tape has closed. Looks like everyone has been going to CD-Rs.

No tears here about that demise. I haven't used Ampex tape since 1969, in
Korea. We switched our three 12-track recorders to 3M tape because Ampex
sandpapered the heads.

This old war horse finally went CD-R and CD-RW about a year ago. CD-RW is
wonderful for PC HD backup. Can't bear to let go of my Teac 4010-SL r/r deck
though. I bought it in Thailand in '71, used it until '81 or so, and then
packed it in its original box. It's been used twice since then. Every once in
a while I pull it out to show to some kid as an antique. :-)

What wire gauge, if one at all, do metricated industrial countries
use?

France, Germany, Russia, China, for example.