HP 59501B Digital to Analog Converter / Power Supply Programmer Repair скачать в хорошем качестве

HP 59501B Digital to Analog Converter / Power Supply Programmer Repair

We repair two Hewlett Packard HP 59501B units, and use them to transform a mundane 1960 HP power supply into a digitally programmable one. HP 59501A/B manual scan, including readable schematics page: https://archive.org/details/hp-59501b... Buy your own HP repair fancy pants: https://shop.curiousmarc.com/products... Stuff that supports the channel: Support us on Patreon:   / curiousmarc   Amazon links for the tools I use in the lab: https://www.curiousmarc.com/amazon-links Channel merch on Fourthwall: https://curiousmarc-shop.fourthwall.com Legacy channel merch on Teespring (I don't have everything transferred to Fourthwall yet): https://teespring.com/stores/curiousm... "Elevator Music" Credit: Crinoline Dreams by Kevin MacLeod Our lovely sponsors PCBWay: fast turn PCBs, https://www.pcbway.com Electro-Rent: https://www.electrorent.com Keysight: test instruments: https://www.keysight.com Samtec: connectors: https://www.samtec.com R&D Microwaves: https://rdmicrowaves.com Get more technical info on the companion site: https://www.curiousmarc.com Contact info: https://www.youtube.com/curiousmarc/a... 0:00 Why we need the HP 59501B DAC 2:19 My collection of HP 59xxx instruments 4:05 Trying out the 59501B, the bipolar scale is out of cal 8:10 Calibrating the 59501 unipolar range 10:13 Oops, the bipolar range won't calibrate! But why? 12:46 Full schematics explanation (Elevator Music section) 22:29 Repair 25:58 Post repair calibration 27:39 It now exceed specs by 10x! 29:05 Repairing the 2nd unit 30:45 Turning an analog power supply into a digital one!