What is it?

JamieMcC · 1910

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Offline JamieMcC

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on: September 16, 2016, 10:47:06 AM
Does anyone know what this is? It was about to thrown in the skip with a load of other old electrical bits and pieces it looked interesting.



Shoot for the moon if you miss you will still be amongst the stars!

Offline 2Bornot2B

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Reply #1 on: September 16, 2016, 10:55:27 AM
Looks like a Wheatstone Bridge from high school physics.

boB

Offline Adrian

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Reply #2 on: September 16, 2016, 12:55:08 PM

Adrian C.

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Offline JamieMcC

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Reply #3 on: September 17, 2016, 02:37:00 AM
Perfect thanks the makers name plate on it is even the same "Philip Harris".

Shoot for the moon if you miss you will still be amongst the stars!

Offline howardnair

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Reply #4 on: September 17, 2016, 10:09:22 AM
Well now that we know what it is. Are you going to hook it up to something. I would be tempted just for fun


Offline RayP

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Reply #5 on: September 19, 2016, 12:24:03 PM
What resistance is it and how much power do you think it could take?

ray

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Offline Adrian

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Reply #6 on: September 20, 2016, 03:23:30 PM
resistance and power rating?
It is advertised to contain 24 standard wire gage Constantan alloy.
Here's a start on its properties https://en.wikipedia.org/wiki/Constantan.
This alloy is normally found in thermacouples but can also be used in wire wound resistors IIRC (simular to nichrome wire).
I'm sure you can find out much more about with a little google curiosity.

Adrian C.

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Offline RayP

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Reply #7 on: September 21, 2016, 08:06:06 PM
http://www.iecpl.com.au/site/prod_det.php?recordID=4794-001

So 1.99 ohms per meter. I'm struggling to think of a use for the device.

ray

Ray Perry

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