We restore a Hewlett-Packard 711A, a 500V power supply from the tube era, in preparation for future high voltage tubery.

Our 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

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