Measuring very high resistances or very small currents
I wanted to use a Keithley 410A Picoammeter to check the resistance of an Ohmite 1% 100 GΩ resistor. (RX-1M1009FE) Here is what didn't work and what did. Skip to 15:00 to go straight to the successful measurement.
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DO NOT BUY 1% Resistors from Amazon. I REGRET IT.
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