I’ve had the need to measure some small currents a few times and my cheap multimeter is not exactly the best tool for that. I decided to build a current adapter (a “transresistance amplifier” to be exact!). I already had almost all the parts for a µcurrent adapter created by Dave Jones (µcurrent) which fit the bill nicely. The device is basically a run-off-the-mill current shunt with an amplifier. The […]