ESI Model 253 Autoranging Digital Impedance Meter Repair & Calibration

This ESI Model 253 Autoranging Digital Impedance Meter came with a busted Kelvin clip! After replacing that I calibrated the unit per its instruction manual. This is an incredibly useful piece of test equipment to have on your bench!

Note: I narrowly avoided losing all of this footage entirely, due to introducing a new microphone cable into my AV setup without doing any testing prior to shooting. Audacity's noise reduction feature saved the day. The noise is still there, but it is way, way down and to my ears, tolerable. Rookie mistake on my part and a definite lesson learned.