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You might want to investigate 4-lead milli/micro ohm meters.
Great then...go for it. But one wonders how one will overcome the inherent contact resistance of the admittedly simpler two lead measurement even in the milliohm range. Perhaps Heisenberg was in error.
Hi Gary,
looks OK for me.
However to achieve 100mA output current the nominal value for the adjustment resistor is 62.5Ω.
Using a 56Ω fixed value resistor and a 25 turns pot at 10Ω adjustment will be easier.
Regards
Boncuk
For 100mA out on the LM317LZ, the Out to Adj resistance is 12.5 Ohms.