Modern Fails: Newall C80 DRO repair

My expensive lathe digital readout just failed, and Newall does not want to repair it! So, we reverse engineer it, and find out that the proprietary principle of operation is absolutely genius, involving ball bearings and magnetics, with a readout precision of better than 10 microns. And the fault is quite unexpected. Hint: not a capacitor. Update: Master Ken decapped the ferro-electric memory chip and made a blog about it, showing pictures of the unusual chip and explaining how it works. See it here: http://www.righto.com/2024/09/ramtron... 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...