New SMD Thermal Jumper parts could radically change your PCB thermal designs! https://ift.tt/32FDRhO https://ift.tt/2Us3pdu Forum: https://ift.tt/2JWobQv
This is a follow-on from the original SMD Thermal Design video: https://www.youtube.com/watch?v=2ygnAv6koSQ
Dave tears down and investigates a Dell infrared IR optical touch screen monitor found in the dumpster. Infrared touch screen are not often used in consumer computer monitor applications compared to resistive and capacitive touch screen technologies.
Forum: https://www.eevblog.com/forum/blog/eevblog-1346-how-an-infrared-optical-touch-screen-works/
Dave fixes a thermal issue with his old video editing laptop, a HP Pavilion dv7
Forum: https://www.eevblog.com/forum/blog/eevblog-1345-hp-dv7-laptop-repair/
Custom storage shelves for under the bench in the new lab. Using an online flat pack custom shelving and storage ordering system, and assembly. Forum: https://www.eevblog.com/forum/blog/eevblog-1344-custom-lab-storage-shelves/
An update from EEVblog #50 (yes, #50!) The CREE XPG LED’s on the deck finally died and Dave needs a replacement, so time to hack some existing T8 LED tube lights.
Forum: https://www.eevblog.com/forum/blog/eevblog-1343-dead-deck-cree-leds/
What’s left of the rented and now abandoned EEVblog Lab And why you may not see videos for a couple of weeks.
Exclusive video on the lab move options: https://ift.tt/3mKqLr1
More on the lab move: https://ift.tt/2TNx5l8
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 PCB’s.
TCM PDF: https://eevblog.com/files/ibm-system390-air-cooled-alumina-thermal-conduction-module.pdf
Forum: https://www.eevblog.com/forum/blog/eevblog-1341-amazing-$250-000-ibm-processor-teardown/
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, and how cylindrical cells compare to large pouch cell construction.
Tesla Patent: https://patents.google.com/patent/US20200144676A1/en?oq=20200144676
Forum: https://www.eevblog.com/forum/blog/eevblog-1340-new-tesla-4680-battery-cell-explained/
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 https://amzn.to/2ExXGic
27:11 – OPOLAR Cordless Air Duster https://amzn.to/2HrXqlT
34:49 – Edsyn Solder Sucker The Original Deluxe SOLDAPULLT and their story. https://www.edsyn.com/product/DHT/DS017.html
45:43 – The End
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/
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 a job at Silverbrook research. And the value of tailoring your resume.
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/
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 detection has a bit of an alignment issue, LED testing is limited, and the secondary measurements basically don’t work. But for $70 it’s very handy and nothing else can touch it, and the probe design is gorgeous. Absolutely no match for the much more expensive SmartTweezers. Maybe they can fix some stuff in firmware to improve it.
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/
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 phones.
TLDR; it’s no better than existing 100uW commercial betavoltaic batteries, but has an added graphene supercapacitor in the AA package.The rest is marketing BS.
Betavoltaics presentation from City Labs: https://www.energy.gov/sites/prod/files/2015/08/f26/Cabauy%20Tritium%20Focus%20Group%20Presentation.pdf
Forum: https://www.eevblog.com/forum/blog/eevblog-1333-nano-diamond-self-charging-battery-debunked!/
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/
