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Kerry D. Wong

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Review/Teardown of a HoldPeak HP-770D 40000 Counts True RMS Multimeter

November 5, 2021November 5, 2021 kwongLeave a Comment on Review/Teardown of a HoldPeak HP-770D 40000 Counts True RMS Multimeter

HoldPeak’s HP-770D is a 40,000 counts true RMS multimeter. Price and size-wise it is very similar to UNI-T’s new UT61E+ […]

Electronics Digital Multimeter, DMM, HoldPeak, HP-770D, HT7530-1, HY11p14, HY3131, True RMS

Teardown of an MEDA PLM-100 AC Magnetometer

August 11, 2018 kwongLeave a Comment on Teardown of an MEDA PLM-100 AC Magnetometer

I did a teardown a while ago on a cheap eBay electromagnetic radiation detector, and if you recall the performance […]

Electronics, Teardowns AD636, burden voltage, Electromagnetic compatibility, EMC, fluxgate, Macintyre Electronic Design Associates, Magnetometer, Meda, Op Amp, Search Coil, TL032, Transimpedance Amplifier, True RMS

Quick Review of the ennoLogic eM860T True RMS Multimeter

March 13, 2016 kwong7 Comments on Quick Review of the ennoLogic eM860T True RMS Multimeter

I picked up an autoranging True RMS multimeter from ennoLogic a couple of weeks ago. Before this purchase, I actually […]

Electronics, Product Reviews 24C02A, DTM0660L, eM860T, ennoLogic, Multimeter, Review, Tekpower TP40, True RMS, UNI-T 139C, Velleman DVM4100

On RMS Voltage Measurement

August 22, 2011August 22, 2011 kwong4 Comments on On RMS Voltage Measurement

Just because you are using a true RMS multimeter does not automatically mean you should always trust the readings of […]

Electronics BK Precision 2709B, Measurement, Rigol DS1052E, RMS, TRIAC, True RMS

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