EEVblog No Script, No Fear, All Opinion

Teardown of a $250,000 1991 vintage IBM 9121 TCM Processor module from a System/390 ES9000 Enterprise Server mainframe computer,. Amazing state of the art 63 layer ceramic hybrid module construction with 2772 pins! And Dave demonstrates an amazing BGA desoldering technique that can only be done on these ceramic hybrid …

Dave explains why Tesla have switched from a 2170 cell to a bigger 4680 cell announced at Battery Day. What is the new tabless technology and what are the thermal cell and battery pack implications? Discussion on Lithium Ion battery cell construction, chemistry, manufacture, thermal design, internal resistance, heat sinking, …

Dave visits Transit Systems to take a look at a fully electric bus with a 328kWh battery back running on regular Sydney bus routes. How does it compare to an electric car? https://www.transitsystems.com.au/electric-buses Forum: https://www.eevblog.com/forum/blog/eevblog-1339-looking-at-an-electric-bus/

Google just BANNED the LBRY Android app from the Google Play Store! https://odysee.com/@eevblog:7 New platform Utreon: https://utreon.com/c/eevblog Forum: https://www.eevblog.com/forum/eevblab/eevblab-81-google-banned-lbry-android-app-from-play-store/

A rubber coated Mailbag SPOILERS: 00:00 – Introduction 00:30 – Guest Lab RealTimeKodi https://twitter.com/RealTimeKodi 02:24 – Metrotech Model 480 Pipe & Cable Locator teardown, with interesting latex rubber conformal coating! 14:36 – KOTTO Soldering Fume Extractor https://amzn.to/32TlzKm 21:44 – William’s Lab 24:06 – Dr. Livingston’s Human Anatomy jigsaw puzzle set …

Dave finally bought a fully electric car! A 2020 Hyundai IONIQ Electric Elite. A discussion about buying an electric car in Australia, comparison to the Nissan LEAF and others, and picking up the car. Forum: https://www.eevblog.com/forum/blog/eevblog-1337-i-bought-an-electric-car/ Podcast: Download

An extract from a live show on EEVBlog2 And interesting question was raised: Does staying private and secretive online help or hinder your engineering career prospects? Does having a presence on social media and LinkedIn help or hinder? Dave also tells a story of when publishing too much cost him …

Destructive teardown o nthe Miniware DT71 LCR meter Tweezers Plus a lab move update. Forum: https://www.eevblog.com/forum/blog/eevblog-1336-dt71-lcr-tweezer-destructive-teardown-lab-update/ Podcast: Download

Review of the new $70 Miniware DT71 LCR Tweezers, is it any good? https://s.click.aliexpress.com/e/_dT6koqT Forum: https://www.eevblog.com/forum/blog/eevblog-1335-miniware-$70-dt71-lcr-tweezer-review/ TLDR; It’s not very accurate, doesn’t have much resolution, limited ranges, accuracy issues between Auto and Manual modes, can’t be used while charging, lose the custom charge lead and you are screwed, tilt head …

Mystery dumpster teardown time! With the most amazing mechanical mains power switch you’ll ever see! 00:00 – Playing Around 10:00 – Teardown 14:00 – OMG that power switch! 20:40 – PCB Lesson for noobs Forum: https://www.eevblog.com/forum/blog/eevblog-1334-mystery-dumpster-teardown/ Podcast: Download

Dave debunks the marketing claims of self-charging Nano Diamond Batteries in the first 10 minutes using their own material. The rest of the video is cream on top. NDB Inc supposedly have a nuclear nano diamond self-charging battery that will revolutionise the energy industry and power electric vehicle and mobile …

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/

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/

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

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 …