HP 410C Vacuum Tube Voltmeter Part 2: AC Probe
We jury-rig a tube based AC probe for our HP 410C VTVM. Will it do better than our modern Keysight multimeter? (Answer: yes) Atkelar's Second HP 410C Restoration: • HP 410C VTVM (as seen with @CuriousMarc) -... Stuff that supports the channel: Amazon links for the tools I use in the lab (supports the channel if you buy from there) https://www.curiousmarc.com/amazon-links Channel merch on Teespring: https://teespring.com/stores/curiousm... Support us on Patreon: / curiousmarc "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...

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