In this video I am switching my HP 3478A from 120V 60Hz AC to 230V 50Hz AC using the internal selection. I am also comparing some voltage and resistance measurements to my Keithley 175 and I realize the HP needs calibration if I am to trust it’s measurements. While I was inside the meter I also checked the voltage of the internal battery used to store calibration data.

In this InTheMail segment I receive the HP 3478A 5.5 digit multimeter, a Probe Master 8028s test lead set, the Anker Astro E3 10000mAh portable battery charger and the Seagate Expansion 2TB external storage hard drive.

I got this HP Agilent E3611A from Ebay. It was marked as not working and I was planing a repair video on it. Unfortunately the unit turned out to be fully functional so I only did a teardown and calibration.

November 19th, 2007

Change the message on HP printers

Is you hp printer getting old and boring ? Here is a great tutorial on how to make your hp printer cool again. At the end of this tutorial you get the same old HP printer (that you should trow away and buy a new one like every normal people) but with a new personalized message. Cool

Change the message on HP printers

Link to tutorial

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