EEVblog

How do you make waterproof earphones? A teardown of the Sony Walkman NWZ-WS613 Also talk on o-rings and waterproofing electronics. Forum HERE

Mailbag time! SPOILERS: Aliens vs Pirates! Northside service company: https://www.youtube.com/channel/UCcMN_sDzaDThDYRBb2Qcahw/featured Nutone intercom system teardown 10:08 Royal Digital Diary Teardown 12:52 Motic / Swift soldering stereo microscope, also rebadged by AmScope https://amzn.to/2Lt0sYG 25:03 Texas Hold’em handheld game Teardown TI 30-XS Calculator teardown 31:43 Elecrow Crowtail STEAM Edu Kit for Micro:bit 36:28 CrowVi USB-C monitor: https://www.elecrow.com/crowvi-13-3inch-portable-usb-c-monitor-non-touchscreen.html Forum ...

Fundamentals Friday Dave answers a beginner forum question of why their 74HC390 based breadboard counter circuit does not work properly. Let’s get up to our armpits in datasheets and troubleshooting. A two sentence forum response turned into a step-by-step 27min video investigation involving rise and fall times, setup and hold times, metatability, optocouplers, bypassing, open ...

Hackable STM32 based ARM RF dev boards are literally falling from the sky! A teardown of two weather balloon Vaisala radiosondes, the RS41 and RS92. Repurposing tre RS41: http://www.om3bc.com/docs/rs41/rs41_en.html Github: https://github.com/bazjo Paper on capacitive humidity sensors: https://pdfs.semanticscholar.org/0728/24b548d91516d765c4b7facdceb350d61cdd.pdf

Dave’s Sony NEX VG30 camera, err, well, it broke… A quick partial teardown and fix. And a quick talk about the cameras Dave uses for the blog. Sony NX80 Sony A6300 Sony RX100 MKIV Forum HERE

Sagan assembles the RC2014 Mini retro Z80 computer kit running Microsft BASIC from 1978. But will it go to plan? Power up, testing and troubleshooting at 23:00 Forum: http://www.eevblog.com/forum/blog/eevblog-1205-rc2014-z80-computer-kit-build/ Sagan’s first time soldering: https://www.youtube.com/watch?v=EjpUYGRXzRQ

The new Samsung Galaxy Fold a folding OLED smartphone has failed spectacularly in the hands of early reviewers! What went wrong? Also, a rant about the pressures on reviewers from the manufacturers, Dave questions why Marques Brownlee won’t show his failure footage. 3M Flexible OLED testing presentationFlexible OLED 2011 article Forum HERE

Dave repairs a classic Tektronix 400MHz 2465B oscilloscope that’s been sitting on the mailbag shelf for years. Arguably the greatest analog oscilloscope ever made. BONUS magic smoke escape! Although it was repaired to a functional level, this is kinda Part 1, as not all functions were exercised and tested, and not all parts were refurbished. ...

The previous LCD repair didn’t last very long. Redux time. Installing a new 240×64 LCD module in the PM300 Power Analyser wasn’t exactly a walk in the park.

Surely the world’s only Nobel Laureate electronics hobbyist! Dr Barry Marshall, winner of the 2005 Nobel Prize for Medicine visits the EEVblog lab to sniff some vintage gear and discuss his Nobel prize winning discovery and treatment for stomach ulcers. Dr Marshall discovered that Helicobacter Pylori bacteria was responsible for stomach ulcers, and not stress! ...