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!/

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/

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/

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

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/

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/

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 Siemens Rat Pee? Forum: https://www.eevblog.com/forum/blog/eevblog-1291-mailbag/

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 Path on 5G: https://theamphour.com/430-shahriar-discusses-5g/ Forum: ...

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/

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!/