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Dave replaces a cracked 5th gen iPad touch screen. Content rock bottom? But child happy, and one less new iPad that needs to be manufactured.

Forum: https://www.eevblog.com/forum/blog/eevblog-1255-apple-ipad-5th-gen-screen-repair/

#Apple #iPad #Repair

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More Mailbag!
Forum: https://www.eevblog.com/forum/blog/eevblog-1254-mailbag/

SPOILERS:
USB Stick Teardown
1:37 $2 Multimeter Teardown
4:21 Dick Smith Funway Into Electronics Book
Dick Smith Talk: https://www.youtube.com/watch?v=V1eivQNtulE
Tandy 200-in-1: https://www.youtube.com/watch?v=r1gTu5r8mkQ
Dick's Youtube Channel: https://www.youtube.com/watch?v=80seR-2BPyk
9:58 Electronic Hanukiah & XMAS Tree LED snowflake
https://amzn.to/2J5x0V9
https://www.tindie.com/stores/djacobow/
17:47 USB CAN Bus Interface https://www.medo64.com/cananka/
19:49 LORAwan sensor node https://github.com/itofficeeu/ito-sensor-node
24:42 Electronoobs DIY T12 Soldering iron
https://www.youtube.com/electronoobs
https://electronoobs.io/
https://electronoobs.com/
35:43 Acer C20 Mini DLP Pico Projector Teardown

#Mailbag

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Part 2 of the LED Flicker investigation.
Modding the driver for input and output capacitance and it's effect on power factor correction and thermal performance.

Power Factor Correction: https://www.youtube.com/watch?v=MBQn6xpto6M

Forum: https://www.eevblog.com/forum/blog/eevblog-1253-led-flicker-2-electric-boogaloo/

#LED #Flicker

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Dave investigates why his new LED panel lights are flickering on camera.
Teardown and measurement time.

Forum: https://www.eevblog.com/forum/blog/eevblog-1252-led-panel-lighting-flicker-investigated/

#LEDlighting #Flickering #Investigation

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The LifeSaber Kickstarter outdoor survival tool is a classic example of a Jack of all trades, master of none product design.
A master class in how not to design a practical product.

Yet another wind-up/crank USB charger tool with everything but the kitchen sink. It even has ALIENS!

Compare Dave's survival kit with the LifeSaber and there is absolutely no contest, this boondoggle of a product has nothing to offer.

Dave's Kit:
LifeStraw: https://amzn.to/2Iw7d8c
Lumintop Tool AA Torch: https://amzn.to/35iajpS
Foldable USB Solar Panel: https://amzn.to/2IwrFWt
USB Battery Bank: https://amzn.to/2MmeBUz
Outdoor matches: https://amzn.to/2VoBRpd
Magnesium fire starter: https://amzn.to/2OvbEUq
Garmin eTrex 20x: https://amzn.to/31WxWCn

About UV ultraviolet disinfectant systems: https://www.watercorporation.com.au/-/media/files/suppliers/resources/design-standards/ds110-ultraviolet-disinfection-systems.pdf

Forum: https://www.eevblog.com/forum/blog/eevblog-1251-lifesaber-kickstarter-jack-of-all-trades-master-of-none/

#Kickstarter #FAIL #review

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Dave got one of these newfangled slim wallets, the Stealth Razor from Airo Collective, a Kickstarter project, the world's thinnest wallet.
Does it actually replace a full traditional leather wallet?
How practical is it?
Does the RFID protection work?

RFID jammer card tested: https://www.youtube.com/watch?v=rnOuEFR6qoM
RFID Protection tested and explained: https://www.youtube.com/watch?v=kp63MZ6RudE

Forum: https://www.eevblog.com/forum/blog/eevblog-1250-worlds-thinnest-wallet-review-stealth-razor/

#SlimWallet #Review #Kickstarter

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A tutorial on how to read timing diagrams. An essential skill for designing and understanding digital logic, FPGA and microcontroller designs and datasheets.

Logic Analyser Design: https://www.youtube.com/watch?v=iwRhvhKJlzs
Digital logic datasheets explained: https://www.youtube.com/watch?v=sr1DOHnJi8I

Forum: https://www.eevblog.com/forum/blog/eevblog-1249-how-to-read-timing-diagrams/

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Dave found this crazy bargain of the century no-name $9 0.02% class multifuction process calibrator on Aliexpress.
Is it any good?
Actually, it's an AIMOmeter AMPX1 that sells for over $200 on ebay, so what gives?
How can they possibly manufacture and sell a 0.02% class device for under ten bucks?
Teardown time.

Links to stores with availability, grab two before they are gone:
GONE! http://s.click.aliexpress.com/e/2q15Asnm
GONE! http://s.click.aliexpress.com/e/KzXfowmG
GONE! http://s.click.aliexpress.com/e/pXZzeMQM
GONE! http://s.click.aliexpress.com/e/N2SvlX3i
http://s.click.aliexpress.com/e/qREQSsXA
http://s.click.aliexpress.com/e/n9bRRByU
http://s.click.aliexpress.com/e/mgEv3VYU
http://s.click.aliexpress.com/e/B1dhXBHI
http://s.click.aliexpress.com/e/5SZr1USk
http://s.click.aliexpress.com/e/KOvQe5u8
http://s.click.aliexpress.com/e/MM6QzxEo
http://s.click.aliexpress.com/e/rROyF3hm
http://s.click.aliexpress.com/e/Dw6LDRCk

Forum: https://www.eevblog.com/forum/blog/eevblog-1248-insane-a-0-02-process-meter-for-$9-wtf/

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When does PCB propagation delay matter in PCB layout?
Dave goes down the rabbit hole from DIY TTL processor design to DDR memory design and layout.
DDR memory termination.
What is a timing budget? When is it important?
How does signal integrity matter?
When do you have to do serpentine PCB traces to match trace and differential pair lengths?

Micron DDR memory timing budget design:
https://www.micron.com/-/media/client/global/documents/products/technical-note/dram/tn4611.pdf
The CIAA Project https://github.com/ciaa/Hardware/tree/master/PCB/ACC/CIAA_ACC

Forum: https://www.eevblog.com/forum/blog/eevblog-1247-ddr-memory-pcb-propagation-delay-layout/

#PCB #Layout #DDRmemory

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How to convert a dumpster Sony CRT TV into a retro computer RGB monitor. Going through the design considerations, schematics, datasheets and the "jungle chip" and how to feed in the RGB signal and switch it. Also a look at the the old school CGA video interface on an IBM PCjr and how to convert it to RGB.
Also a look inside a dumpster Samsung CRT TV

IBM PCjr Teardown: https://www.youtube.com/watch?v=XRc7Qxf4ltM

Forum: https://www.eevblog.com/forum/blog/eevblog-1246-dumpster-tv-to-retro-rgb-monitor-conversion/

#DumpsterDiving #TV #Hack

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Can you find the fault in the IBM PCjr wireless keyboard before Dave does?
A most excellent adventure in troubleshooting.

Forum: https://www.eevblog.com/forum/blog/eevblog-1245-most-excellent-ibm-pcjr-keyboard-repair/

#Repair #IBM #Vintage

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More Mailbag!

Ohms Per Square Sheet Resistance video: https://www.youtube.com/watch?v=ME4Xe53TMxI
Thermocouple Tutorial Video: https://www.youtube.com/watch?v=AYblSfpKRUk

Forum: https://www.eevblog.com/forum/blog/eevblog-1244-mailbag/

SPOILERS:
Mailbag SPAM!
Arizona
If it smells like chicken, you're holding it wrong.
2:57 https://www.tympan.org Open source hardware audio hearing development system.
11:20 Circuit Scribe conductive ink learning kit https://www.circuitscribe.com/
24:20 Sony RM-440 video editing unit teardown
30:42 Pulse Sensor https://www.pulsesensor.com
31:36 DIY Mouse Kit https://github.com/biomurph/Mouse
32:26 DIY OpenHak open source Fitness tracker https://www.openhak.com
36:34 Faber Castell TR3 scientific calculator and slide rule
42:22 Thermocouple Raspberry Pi Hat http://www.scientificdatasystems.co.uk
46:35 Casio FX-82 Calculator

#OpenSource #Hearing #Fitness

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Repair and teardown of a Sony CFD-V10 portable stereo boombox

Forum: https://www.eevblog.com/forum/blog/eevblog-1243-sony-boombox-repair-and-teardown/

#Sony #Repair #Stereo

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Part 2 of the power-up counter project, investigating the Sharp Memory LCD & custom LCD's + microcontroller (MSP430 + ST ARM + Microchip) low power design with supercaps, SMD ceramic batteries, and coin cells.

#SuperCap #LCD #LowPowerDesign

Forum:

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Victoria Australia just passed the Professional Engineers Registration Bill 2019, a bill that makes it illegal for unregistered engineers to call themselves a Professional Engineer!

How to become a professional engineer: https://www.youtube.com/watch?v=0Tk13MijU4Y

http://www.professionalengineers.org.au/registration-where-to-begin/

The Bill: http://www.legislation.vic.gov.au/domino/Web_Notes/LDMS/PubPDocs.nsf/ee665e366dcb6cb0ca256da400837f6b/294b464e14fe6430ca2583b4007b990d/$FILE/591021bi1.pdf

Forum: https://www.eevblog.com/forum/chat/professional-engineers-in-victoria-must-now-be-licensed/

#Engineering #Illegal #Victoria

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Looking for a segmented e-ink / e-paper display solution for a power up display counter module project.

Forum: https://www.eevblog.com/forum/blog/eevblog-1241-power-up-display-counter-project-part-1/

#Eink #Epaper #Project

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MORE soldering

Go back in time to 1980 and a look at what consumer electronics and parts were available from Tandy in the UK.

Forum: https://www.eevblog.com/forum/jobs/eevblog-1240-tandy-in-the-1980s/

#Tandy #1980s #UK

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WOW, 3% of Tesla Solar Panels on Walmart stores are CATCHING ON FIRE!
Walmart are suing Tesla!

Forum: https://www.eevblog.com/forum/eevblab/eevblab-64-tesla-solar-panels-are-catching-on-fire!/

#Tesla #TeslaSolar #FIRE

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More Mailbag!

Forum:

SPOILERS:
Dodgy Plugpack Teardown & Discussion
9:40 eSATA cage thingo teardown
11:47 Ford Car Stereo teardown
Back To The Future Delorean Time Circuits
https://www.marmosetelectronics.com/time-circuits-clock/time-circuits-clock-the-control-board/
E-con Systems USB3 Camera Module: https://www.e-consystems.com/usb-cameras/full-hd-low-light-usb-camera-with-stereo-mic.asp

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Why doesn't Dave own an electric car?
Let's find out how affordable and available electric cars are in Australia...
How much does a Tesla cost?
How viable are electric cars without government subsidies?

Forum: https://www.eevblog.com/forum/eevblab/eevblab-63-how-affordable-are-electric-cars/

#ElectricCar #Tesla #Australia
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You think a $2 multimeter is bad?
A review of the Kickstarter & Indiegogo Vion bluetooth multimeter that promised the world.
Grab your popcorn for a master class in idiotic product design.
The world's worst multimeter.

The original thread: https://www.eevblog.com/forum/dodgy-technology/vion-the-worlds-silliest-multimeter/

Forum: https://www.eevblog.com/forum/blog/eevblog-1238-vion-the-worlds-worst-multimeter/

#Vion #Kickstarter #FAIL

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Is there an issue with Youtube's new video Notifications?

Video Self Certification: https://www.youtube.com/watch?v=bHJGUTc43kg

#Youtube #Notifications #Problem

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Old school, they don't make'em like this any more.
Teardown of the HP 3785A Jitter Generator & Receiver with beautiful HP bubble LED displays.

Forum: https://www.eevblog.com/forum/blog/eevblog-1237-old-school-teardown-hp3785a-jitter-analyser/

#Teardown #Vintage #HP

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You never go full Brusaw!
Germany has it's own Solar Freakn' Roadways trial, guess the results...

Forum:

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Created 1 year, 11 months ago.

317 videos

CategoryScience & Technology

NO SCRIPT, NO FEAR, ALL OPINION
An off-the-cuff Video Blog about Electronics Engineering, for engineers, hobbyists, enthusiasts, hackers and Makers
Hosted by Dave Jones from Sydney Australia

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PLEASE:
DO NOT ask for personal advice on something, post it in the EEVblog forum
I get over 80,000 video views *each day* and that means a *lot* of email asking for advice, I simply can't keep up.
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