“Per Mille” is a trap for young players. “Parts Per” notation explained, along with percentage and ppm. Forum: https://www.eevblog.com/forum/blog/eevblog-1300-parts-per-notation-explained/ Podcast: Download
Read More »EEVblog #1299 – Dumpster Laptop REPAIR
Repairing a Toshiba Satellite S40-B Laptop found in the dumpster. Library: https://lbry.tv/@eevblog:7/ Forum: https://www.eevblog.com/forum/blog/eevblog-1299-dumpster-laptop-repair/ Podcast: Download
Read More »EEVblog #1298 – $70 2000W Power Supply
A look at the $70 Juntek 2000W power supply with wireless display. Also the 3000W model, but does it have a problem? https://s.click.aliexpress.com/e/_dZVpwTI Library: https://lbry.tv/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1298-$70-2000w-power-supply/ Podcast: Download
Read More »EEVblog #1297 – Turn an LCD into E-Paper!
Dave’s long term LCD DC bias experiment has turned a regular 7 segment LCD effectively into an E-Ink/E-Paper display! Microchip LCD App Note: http://ww1.microchip.com/downloads/en/AppNotes/AN658-LCD-Fundamentals-and-the-LCD-Driver-Module-of-8-Bit-PIC-MCUs-00000658C.pdf Datasheet: https://www.lumex.com/spec/LCD-S101D14TR.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1297-turn-an-lcd-into-e-paper!/ Podcast: Download
Read More »EEVblog #1296 – Alkaline Battery Leakage Testing 2 – Electric Boogaloo
A revisit of the Alkaline battery leakage testing. Library: https://lbry.tv/$/invite/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1296-alkaline-battery-leakage-testing-2-electric-boogaloo/ Podcast: Download
Read More »EEVblog #1295 – What Makes A Good Lab HEPA Air Filter?
What makes a good lab HEPA air filter and purifier? Forum: https://www.eevblog.com/forum/blog/eevblog-1295-what-makes-a-good-lab-hepa-air-filter/ Podcast: Download
Read More »EEVblog #1294 – LLC Resonant Mode Converter Design
A brief look at how LLC resonant mode converters work and their advantages. A spin-off from the Rohde & Schwarz NGP800 power supply video. Application note: https://www.infineon.com/dgdl/Application_Note_Resonant+LLC+Converter+Operation+and+Design_Infineon.pdf?fileId=db3a30433a047ba0013a4a60e3be64a1 Podcast: Download
Read More »EEVblog #1293 – New Rohde and Schwarz NGP800 800W PSU
A look at the new Rohde and Schwarz NGP800 800W system power supply. Teardown and a brief play around. Subscribe on library: https://lbry.tv/$/invite/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1293-new-ngp800-800w-power-supply/ Podcast: Download
Read More »EEVblog #1292 – $2 Meter vs JVA Electric Fence Controller!
Multimeter destruction and high speed camera time! Follow up to the dumpster electric fence controller. The designer and CEO of Pakton Technologies Paul Thompson sent in a new one for us to play with! https://www.jva-fence.com.au/ Listen to the podcast: https://theamphour.com/481-an-interview-with-paul-thompson/ Forum: https://www.eevblog.com/forum/blog/eevblog-1292-jva-electric-fence-controller-teardown/ Podcast: Download
Read More »EEVblog #1291 – Mailbag
More Mailbag! SPOILERS: WTF: A soldering iron mouse controller? 10:05 Snapton Designers Guide: https://www.snaptron.com/free-samples/designers-guide/ Snapton Dome Kit: https://www.snaptron.com/free-samples/ 20:18 Open Source LED Snowflake: https://luckyresistor.me/ https://shop.pimoroni.com/products/snowflake 27:20 The world’s worst user interface oscilloscope? And it’s a Tektronix? The Tektronix T201/T202 oscilloscope. Createc SC01 Signal Computer 39:00 I2C USB Driver: https://i2cdriver.com/ 49:19 …
Read More »EEVblog #1290 – Hapbee: Anatomy of a Snake Oil Product
The Hapbee has raised half a million dollars on Indiegogo, it’s magic woo woo that can make you feel different things from weak arse magnetic fields. Let’s go down the rabbit hole of who’s behind this and why… Oh, and let’s cure cancer too! Subscribe on LBRY: https://lbry.tv/$/invite/@eevblog:7 The Signal …
Read More »EEVblog #1289 – Mystery Huawei Teardown
Mystery Mailbag Teardown! Huawei make WHAT? Subscribe on Library: https://lbry.tv/$/invite/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1289-mystery-huawei-teardown/ Podcast: Download
Read More »EEVblog #1288 – Synology NAS Dumpster Find! (REPAIR)
Is a brand new Synology DS415+ NAS in the dumpster too good to be true? A tale of teardowns, repair, Intel Atom processor silicon degradation, and dodgy clocks. Subscribe on Library: https://lbry.tv/$/invite/@eevblog:7 https://www.anandtech.com/show/11110/semi-critical-intel-atom-c2000-flaw-discovered Forum: https://www.eevblog.com/forum/blog/eevblog-1288-synology-nas-dumpster-find!/ Podcast: Download
Read More »EEVblog #1287 – Gatekeeper Shopping Trolley Lock Investigated
Dave’s local shopping centre just installed shopping trolleys with electronic locking wheels fro ma company called Gatekeeper System, how does it work? Teardown time! Subscribe on Library: https://lbry.tv/$/invite/@eevblog:7 FCC website: https://fccid.io/SOX-W9200/ Forum: https://www.eevblog.com/forum/blog/eevblog-1287-gatekeeper-shopping-trolley-lock-investigated/ Podcast: Download
Read More »EEVblog #1285 – How to do Design By Inspection
What is “Design by Inspection” Dave answered what he thought was an obvious forum question, but to beginners it’s not so obvious. Rather than build something up and test, let’s do design by inspection. Subscribe on LBRY: https://lbry.tv/$/invite/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1285-how-to-do-design-by-inspection/ Podcast: Download
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