Identify Wire

m:

do I tell if it's 0.1 or 0.2mm strands? My calipers aren't accurate enough .

measure resistance of know length?

-Lasse

Microscope with reticle, or comparator (little hand-held lens-with-scale gizmos). Or, look up the part number on the reel. There usually is one (and your goods-receiving folk should write a label if there isn't).

Or measure fusing current. Or weigh a know length.

Dan

Microscope with reticle, or comparator (little hand-held lens-with-scale gizmos). Or, look up the part number on the reel. There usually is one (and your goods-receiving folk should write a label if there isn't).

Buy a micrometer ??

Wind it on a pencil? 13 turns (12.6 turn) per 0.1 inch. (0.2mm)

Cheers

This is to identify unlabelled cables. Goods in could write one, but with the data coming only from their imagination it would not be helpful.

NT

I'll try that, and see if the length required for adequate accuracy is not excessive. It might be.

NT

I like that idea. Whether it can be done gaplessly enough I'm not sure, but can find out.

I suspect buying a better micrometer may be the solution.

NT

Another chinese made coil? Hardly enough copper to last around an average humidity environment.

I would use a micrometer. I have one that does 1/10 of a th.

Jamie

Yes, a good micrometer is a good investment.

Cheers

On Sat, 17 Oct 2015 21:45:14 -0400, Martin Riddle Gave us:

Strand gauge is usually not needed . Overall gauge is and strand count, and you could easily derive the strand gauge with that knowledge.

On Sat, 17 Oct 2015 19:10:01 -0700 (PDT), snipped-for-privacy@gmail.com Gave us:

Harbor freight $20

Home Depot maybe $25

Us and metric all in one, and no need for calibration if labeled "for reference only". Still complies with ISO standards at that point.

assuming micrometer calipers is something you don't have:

Wind 20 turns on a needle (or similar tool) and measure with a ruler. (or ordinary measuring calipers if you got 'em)

for more precision you could stick the 20 turn winding and ruler on a scanner...

Even the $10 (on sale) dial calipers from Harbor freight will do that. Mikek

Get even more use out of the cheap ones. The harbor freight dial calipers are cheap enough to use to scribe lines to mark cutting or folding lines. They'll be on sale again for the next set. Although, I'm disappointed they don't put the dial calipers on sale now, only the electronic ones. Why mess with a battery when the dial works fine. Mikek

Yup, looks like time to upgrade from vernier to dial.

NT

On Sun, 18 Oct 2015 13:03:33 -0700 (PDT), snipped-for-privacy@gmail.com Gave us:

No... caliper, digital.

Ha, you paid to much even though I did pay that for one from HF however, I also got a one form Aldie's and they were clearing them out, I think I paid like 5 bucks for them, digital dial works just as good as the HF.

If you don't use this stuff everday they're great..

Jamie

Dial calipers don't have dead batteries every time you want to use the tool.