Teardown (partial) of a Facit C1-13 13 digit mechanical calculator from 1967. John Wolff’s mechanical calculator website: http://www.johnwolff.id.au/calculators/Tech/FacitC1-13/C113.htm Forum: https://www.eevblog.com/forum/blog/eevblog-1332-facit-mechanical-calculator/
Read More »eevBLAB #79 – Bunker Shelving Storage BUILD + Moving Labs!
Building more bunker storage. Plus discussion on moving the lab. https://storagesam.com.au/shelving Forum: https://www.eevblog.com/forum/eevblab/eevblab-79-bunker-shelving-storage-build-moving-labs/
Read More »EEVblog #1331 – BattLab One Review
Review of the BattLab One open source battery life estimator tool from Bluebird Labs. A tool that allow you to measure the current and power consumption of your product in active and sleep modes and do “what if” analysis on estimating product battery life. https://bluebird-labs.com/ https://www.tindie.com/stores/bbird/ Forum: https://www.eevblog.com/forum/blog/eevblog-1331-battlab-one-review/ Podcast: Download
Read More »EEVblog #1330 – Mailbag
Mailbag with new guest lab backdrops! Forum: https://www.eevblog.com/forum/blog/eevblog-1330-mailbag/ SPOILERS: 00:00 – Inside fellow Youtuber Ian Johnston’s Lab! https://www.ianjohnston.com/ 03:16 – Err, Nothing… 04:49 – Google Nest Mini Teardown, ripoff Airpods teardown, Bose speakers.12:14 – Sinclair C5 Brochure 18:08 – Inside Yunus KURBAN’s Ecay Geophysical Solutions Lab https://www.ecay.com.tr/ 20:39 – IBM …
Read More »EEVblog #1329 – Magnetic Field Shielding DEMONSTRATED
A demonstration of near-field magnetic interference and how to shield it. Near-field vs far-field EMC explained. Forum: https://www.eevblog.com/forum/blog/eevblog-1329-magnetic-field-shielding-demonstrated/ Podcast: Download
Read More »EEVblog #1328 – uCurrent OPA189 Measurements
Part 3 of designing a better uCurrent series. Measuring the noise and consumption of the OPA189 compared to the MAX4239 using a dynamic signal analyser and an oscilloscope. Forum: https://www.eevblog.com/forum/blog/eevblog-1328-ucurrent-op189-measurements/ Podcast: Download
Read More »EEVblog #1327 – 3 Ways to FAIL at PCB Manufacture
Three ways to get your PCB design rejected by your PCB manufacturer. 1) Imperial/Metric conversion 2) Unexpected Trace/Space specifications 3) Goofing the Gerber resolution. Forum: https://www.eevblog.com/forum/blog/eevblog-1327-3-ways-to-fail-at-pcb-manufacture/ Podcast: Download
Read More »EEVblog #1326 – How Engineering Minds Think Alike
Two almost identical complex designs published at almost the same time? How does that happen? Let’s go back to 1996 and see how similar Dave’s PC Logic Analyser design is to one published in Elektor Electronics magazine. Forum: https://www.eevblog.com/forum/blog/eevblog-1326-how-engineering-minds-think-alike/ Podcast: Download
Read More »EEVblog #1325 – OPAMP Shootout – Datasheet Deep Dive
Part 2 in designing a better uCurrent. A datasheet shootout between the Maxim MAX4239 and the TI OPA189 A deeper dive into the datasheet specs from the previous video, looking at gain bandwidth product, noise, supply current and voltages, offset voltages histograms, input bias currents, recovery and settling time, and …
Read More »EEVblog #1324 – Oscilloscope Reference Waveforms are USEFUL
Dave shows how to use reference waveforms to capture, compare and time correlate more then one signal at a time on your oscilloscope when you just can’t hold all those probes at once. Forum: https://www.eevblog.com/forum/blog/eevblog-1324-scope-trick-2-probes-1-hand/ Podcast: Download
Read More »EEVblog #1323 – PCB Layout Review & Analysis
Dave analyses a PCB layout from the EEVblog forum and covers all sorts of tips for SMD layout, component placement, routing, layer stackup, controlled impedance traces, supply planes and power bypassing. Original forum thread: https://www.eevblog.com/forum/beginners/first-4-layer-pcb-traces-on-each-layer-a-good-idea/ Forum: https://www.eevblog.com/forum/blog/eevblog-1323-pcb-layout-review-analysis/ Podcast: Download
Read More »EEVblog #1322 – JBL LSR308 Studio Monitor Speaker REPAIR
Repairing a JBL LSR308 studio monitor speaker. Digital troubleshooting in a speaker? Yep, that’s a thing! How to systematically track down a fault and *know* that part has failed. Forum: https://www.eevblog.com/forum/blog/eevblog-1322-jbl-lsr308-studio-monitor-speaker-repair/ Podcast: Download
Read More »EEVblog #1321 – SunPlower – DUMBEST IDEA Since Solar Roadways!
The SunPlower is supposed to be able to power mobile phone towers, propel boats and submarines, and fly you around in an Air-Taxi! Let’s turn flat solar panels into wind turbine blades! The laws of physics and engineering might have a lot to say about that… Subscribe on Library: https://lbry.tv/@eevblog:7 …
Read More »EEVblog #1320 – Premature Oscilloscope Triggering
Don’t be caught out by embarrassing premature triggering! Dave demonstrates how and why your oscilloscope may trigger before it’s supposed to, and how to solve it. Forum: https://www.eevblog.com/forum/blog/eevblog-1320-premature-oscilloscope-triggering/ Podcast: Download
Read More »eevBLAB #77 – TV Packaging Technology is INTERESTING
Only Dave can think that TV packaging boxes are interesting enough from a product design perspective to make a video about them. Forum: https://www.eevblog.com/forum/eevblab/eevblab-77-tv-packaging-technology-is-interesting/
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