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

<p>Dave and Ian Scott Johnston discuss 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.</p> <p><a href= "https://www.youtube.com/@UCtiK8QrcCrsjDXpKzB1PO1A">https://www.youtube.com/@UCtiK8QrcCrsjDXpKzB1PO1A</a></p> <p><a href= "https://www.ianjohnston.com/">https://www.ianjohnston.com/</a></p> <p> </p>