2013年4月20日 · disclaimer: I have never calibrated an HP 3478A, but need to investigate, then calibrate my meter with the standards I can muster up, so I am interested in the process. after …

2017年4月3日 · Re: HP 3478A: How to read/write cal SRAM « Reply #18 on: April 12, 2017, 07:46:14 am » @MarkL et all Now we "just" need to reveal the HP3457's secrets PHK did the …

2020年4月10日 · The HP 3478a, on the other hand, will need a battery replacement to maintain the SRAM. Thoughts on either Bench DMM, accuracy between the two, recommendations, …

2020年4月18日 · Hi guys, I've finally received my first bench multimeter, an HP 3478a, that I got for a decent price. As far as I know, it currently still functions, and that I need to replace the …

2013年5月5日 · I took a different approach with my HP 3478A. Now that electroluminescent tape and inverters are so cheap on ebay, I decided to give that a shot. I'll call this a mild success, …

2013年2月21日 · Re: EEVblog #427 - HP 3478A Multimeter Teardown « Reply #22 on: February 23, 2013, 12:46:23 pm » Dave mentioned the measured voltage was at 3.49 volt which is a big …

2017年1月15日 · When the Prologix is connected to the HP 3478A, if "++read" is sent, does the meter return the value continuously or only just a single read? Thanks for any help anyone can …

2018年3月13日 · Just found something hidden in plain sight : the HP Journal, 1983-02 issue, has an article about the 3478A, which is presented as the "HP-IB version of the 3468". They …

2018年11月15日 · Re: HP 3478A: How to read/write cal SRAM « Reply #93 on: January 19, 2020, 05:39:59 am » Thanks to code provided by steve1515 I've now added the ability to edit the …

2014年3月24日 · Re: New (old) HP 3478A with a very floaty volts range « Reply #21 on: March 24, 2014, 06:35:01 pm » For comparison, here is my Keithley 2015 (6.5 digits / 1000000 …