The Amp Hour #643 - Calibration & Repair with Ian Johnston

Unedited video chatting with Ian Scott Johnston about the PDVS2mini DC Voltage Calibrator Source, production, China, CERN, ebay reselling, test gear, pick and place machines, assembly, automated test systems, and Youtube repair videos.
https://www.youtube.com/@UCtiK8QrcCrsjDXpKzB1PO1A
https://www.ianjohnston.com/

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