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Imagine I make an analog circuit, lets say a guitar pedal circuit (in a PCB of course).

How can I test (automatically if possible) the potentiometers functionality, when testing in a nailbed testbench ?

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    \$\begingroup\$ First step: think about how you would test it manually. Second step: think about how the same (electrical part of the) measurement could be performed without human intervention (but connecting the wires and mounting the PCB is still done by a human). \$\endgroup\$ – Bimpelrekkie Nov 20 '18 at 13:44
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    \$\begingroup\$ In reasonable quantities a human turns the knob while test equipment monitors circuit characteristics. In very large volume automated production a robot or other automation jig will turn the knob for you. \$\endgroup\$ – KalleMP Nov 20 '18 at 14:01

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