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Homemade Ultra Low Resistance Continuity Checker


Ultra Low Resistance Continuity Checker

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BUILDER:
Rick Sparber on rick.sparber.org
DESCRIPTION:
Homemade ultra low resistance continuity checker utilized in machining as an electronic edge finder. Capable of detecting changes of up to 0.2 milliohms and measuring down to 10 milliohms. Circuit incorporates a Wheatstone bridge. Powered by a 9v battery and two 1.5v batteries.
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