Electric OU: Supplement: The Pro’sKit MT5210 RLC Meter (Resistance, Inductance, Capacitance)

The low cost Pro’sKit Inductance-Capacitance-Resistance meter performs surprisingly well and lives up to the Pro’sKit quality standard. ETA: BUT….. by another method, perhaps more reliable, I measured that resistor as 0.5 microHenry. Hmmm….. Here I show the meter reading some small standard commercial inductances and performing with accuracy better than the component’s tolerance. Then I use the meter to measure the inductance of one of the 1 Ohm, 10 Watt power resistors of identical construction and value as those shown in the Ainslie demo video. The meter reads the inductance of this single resistor as 7 microHenry. The inductance of four in parallel would therefore be 1.75 microHenry, and the ProsKit meter indeed reads a bit over 2 microHenry on Tar Baby’s CVR stack of four in parallel on the motherboard. The Ainslie circuit which can be seen in the demo video uses 4 of these resistors and has longer leads on them as well. Yet the NERD RATs claim that the inductance of this shunt is only 110 nanoHenry. (See their Paper 2, Table 1, page 2.)

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