This circuit turns any low cost Digital Volt Meter into a milli ohm meter. The DVM reads 1 mV for each milli ohm seens by the circuit. Normally this would take a 1 amp test current but the Resistance Amplifier does it with only 10 mA. If you are interested, please see
http://rick.sparber.org/electronics/ramp.pdf
Thanks rgsparber! This one's been added to our Electrical category, and of course to your homemade tools page: Rick Sparber's Homemade Tools. Your receipt:
<div id="blocks"> <div class="block b1 pngfix"> <a class="editLink" href="/zeus/administrator/update/linkid/7335">edit</a> <div class="bimg"> <div> <a href="/resistance-amplifier"><img src="/images/thumb/da/da4dec957c35b922bb390b444e29694e-20130214084031.jpg" alt="Resistance Amplifier" /></a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="/resistance-amplifier">Resistance Amplifier</a> <span> by <a href="/builder/Rick+Sparber">Rick Sparber</a></span> </div> <div class="tags"> tags: <a href="/tag/voltmeter">voltmeter</a>, <a href="/tag/electronics">electronics</a> </div> </div> </div> </div>