• Past Posts

    EEVblog #933 – Keysight U1272A EMC Issue

    A viewer found an EMC issue with the Keysight U1272A multimeter Dave confirms both conducted and coupled issues and finds some spooky action at a distance! Comparisons with other meters confirm they don’t have the same issue. Fluke 87 GSM Problem VIDEO Forum HERE EEVblog #933 - Keysight U1272A EMC ...

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    EEVblog #932 – How Does A HV Differential Probe Work?

    How does a high voltage differential probe work? How is it safe? Is it isolated? A teardown and some reverse engineering of the Lecroy AP031 25MHz HV Differential probe. a.k.a Sapphire Instruments SI-9001 Forum HERE EEVblog #932 - How Does A HV Differential Probe Work? [ 0.01 MB ] Download ...

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    EEVblog #931 – Designing A Better Multimeter PART 2

    Dave takes a look at how to optimise the low burden voltage multimeter design from PART 2 to eliminate some parts. And explains the µCurrent shunt circuit design and how that applies to this new optimised design. It’s basically a practical tutorial in circuit design optimisation. Then another design variation ...

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    EEVBlog #930 – Mailbag

    Mailbag time again. Forum HERE SPOILERS: Dave’s first multimeter hack! Sinclair PDM35 Multimeter Russian analog multimeter Canyse 801 data logger Kickstarter Masso CNC Controller Lumintop Prince 1000 lumens flashlight torch Lumintop micro USB rechargeable 18650 cell teardown Canon Ion Still Video Camera and the VF-50 2″ floppy disk EEVBlog #930 ...

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