Cleanup, restoration, and calibration of a Hewlett Packard (HP) 6 1/2 digit 3456A Digital Voltmeter.Continue reading “Hewlett Packard 3456A Digital Voltmeter”
Another local Ebay find was this Hewlett Packard HP 403B AC Voltmeter in a protective HP vertical case. The case did an excellent job of protecting the meter over it’s now 48 year life.Continue reading “Hewlett Packard HP 403B AC Voltmeter Restoration”
Cleanup, repair, and upgrade of a Hewlett Packard (HP)6200B power supply.
Repairing and clean-up of a Hewlett Packard (HP)5300B Measuring System with a 5305B 1,300 MHz Counter module.
This was supposed to be just a clean-up project, but this one turned into a bit more work that I had expected.