A huge thank you again for all that continue to Join us in the lab for repairs and alignments. The channel would not exist with out all of you so thank you again for dropping by. Ways to support the channel: Patreon - https://www.patreon.com/Zenwizard_Studios Paypal - Zenwizard@Zenwizardstudios.com In this video we take a look at my HP 53131A Frequancy counter. I found out from a fellow YouTuber that the power supply will most likely need some love to keep it running in for long haul. Also whale we are in there I did an alignment on the time base to get a more accurate measurements. My example of an 53131A came with the medium stability time base This had an interesting calibration procedure due to this being a software calibration NOT a pot tweak. ** Repair exposes the Tech to mains electric and should only be done by trained personnel. Errors can be fatal. **