Dave sketches up an idea for a more integrated Raspberry Pi supercomputer cluster with integrated ethernet and power. Forum HERE Podcast: Download
Read More »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 Podcast: Download
Read More »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 Podcast: Download
Read More »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 …
Read More »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 Podcast: Download
Read More »EEVblog #929 – Designing A Better Multimeter
Dave looks at the current measurement front end of a typical multimeter and figures out how to redesign it for lower burden voltage. It’s not quite as easy as you might think, there are comprimises and traps for your players. And something you probably didn’t know about HRC fuses. µCurrent …
Read More »EEVblog #928 – Jaycar DMX RGB LED Lights Teardown
Inside the cheap arse Jaycar SL3467 “Rave” DMX controlled RGB LED disco party lights scored for $1 from the dumpster sale. Did Dave get ripped off? Podcast: Download
Read More »EEVblog #927 – Insane Jaycar Dumpster Sale!
The annual Jaycar warehouse sale, take it for a buck or it goes in the dumpster! UPDATE: Yes, all the hard drives work. Forum HERE Podcast: Download
Read More »EEVblog #926 – Introduction To The Oscilloscope
What is an oscilloscope? What is it useful for? How is it used? What is the difference between an old school analog and a modern digital storage oscilloscope? Rigol DS1054Z is a good basic digital scope How not to blow up your oscilloscope VIDEO Mysteries of X1 Oscilloscope Probes Revealed …
Read More »EEVblog #925 – Panasonic CF-U1 ToughBook Teardown
Teardown of the Panasonic CF-U1 Windows 7 based Toughbook Forum HERE Podcast: Download
Read More »EEVblog #924 – Hovering Delorean!
Dave plays with an Indiegogo campaign hovering Delorean! Will it hover? And how does it work? Forum HERE Podcast: Download
Read More »EEVblog #923 – World’s Fastest Solar Electric Car
A brief look at the UNSW EVE solar electric car at Electronex 2016, the world’s fastest solar electric car. Forum HERE Podcast: Download
Read More »EEVblog #922 – Mailbag
More Mysterious Mailbag Forum HERE SPOILERS: Tektronix / Promax RFM90 SignalMini Receive Signal Level Meter teardown A mysterious FM receiver that transmits! RoutaBoard prototype board matrix IntegriFuse USB Protection Digilent Analog Part Kit Digilent PmodIA Impedance converter Raspberry Pi Proto Boards www.youtube.com/user/briandorey DC-AC mechanical vibrator inverter RED Digital camera battery …
Read More »EEVblog #921 – Open Source Hardware Problems Solved!
There are a few big problems with Open Source Hardware and usage of the Gear logo. Dave has a new solution, make it more like Creative Commons! Download the new logo HERE UPDATE: it would be really cool if there was an auto-generator website like the Creative Commons Logo. Pick …
Read More »EEVblog #920 – World’s First Transistor Watch!
The Bulova Accutron Spaceview 214, the world’s first transistorised watch! Space age technology from the 1960’s, the world’s most accurate watch at the time using a 360Hz tuning fork mechanism. Used by NASA on many space missions including Apollo 11. See it operate at 1000fps! All the info HERE Forum …
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