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<p>[QUOTE=&quot;Ordinary Fool, post: 2785768, member: 85318&quot;]You could clamp a coin with something resembling cable ends like found on jumper cables and preferably machined to fit the reeds/radius.</p><p><br /></p><p>One jaw would be + and the other -.</p><p><br /></p><p>Comparing resistances of silver, brass, steel, powder metals, copper, etc is going to show up pretty much continuous using a DVOM or analog meter.</p><p><br /></p><p>Measuring Seimens with a conductivity meter, unless I am thinking about this upside down, would require enough current flow to most likely heat the coin sufficiently enough to color it.</p><p><br /></p><p>I&#039;m thinking to measure the conductivity, you&#039;re not going to do it with uA or mA.</p><p><br /></p><p>Sound right?</p><p><br /></p><p>If not, and you have a conductivity meter, ain&#039;t nothing but a thing to get a damage free connection to flow a few mA.[/QUOTE]</p><p><br /></p>

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