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Three ways to get your PCB design rejected by your PCB manufacturer.
1) Imperial/Metric conversion
2) Unexpected Trace/Space specifications
3) Goofing the Gerber resolution.

Forum:

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#PCB #Manufacture #Tutorial

Two almost identical complex designs published at almost the same time?
How does that happen? Let's explore the design engineering mindset.
Let's go back to 1996 and see how similar Dave's PC Logic Analyser design is to one published in Elektor Electronics magazine.

Dave's project design breakdown: https://www.youtube.com/watch?v=iwRhvhKJlzs
EEVacademy #2 - Digital Logic Boolean & Demorgan's Theorems: https://www.youtube.com/watch?v=hFvqEfZfMtA

Electronics Australia 1996 archive: https://archive.org/details/EA1996

Forum: https://www.eevblog.com/forum/blog/eevblog-1326-how-engineering-minds-think-alike/

#LogicAnalyser #Design #Publication

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Part 2 in designing a better uCurrent.
A datasheet shootout between the Maxim MAX4239 and the TI OPA189
A deeper dive into the datasheet specs from the previous video, looking at gain bandwidth product, noise, supply current and voltages, offset voltages histograms, input bias currents, recovery and settling time, and slew rates.

Cascading opamps tutorial: https://www.youtube.com/watch?v=ZvT9hHG17tQ
Opamp Noise tutorial: https://www.youtube.com/watch?v=Y0jkPLuFdnM

Forum: https://www.eevblog.com/forum/blog/eevblog-1325-opamp-shootout/

#Opamp #Datasheet #Tutorial

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Dave shows how to use reference waveforms to capture, compare and time correlate more then one signal at a time on your oscilloscope when you just can't hold all those probes at once.

Forum: https://www.eevblog.com/forum/blog/eevblog-1324-scope-trick-2-probes-1-hand/

#Oscilloscope #Trick #Tutorial

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Dave analyses a PCB layout from the EEVblog forum and covers all sorts of tips for SMD layout, component placement, routing, layer stackup, controlled impedance traces, supply planes and power bypassing.
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Original forum thread: https://www.eevblog.com/forum/beginners/first-4-layer-pcb-traces-on-each-layer-a-good-idea/
Forum: https://www.eevblog.com/forum/blog/eevblog-1323-pcb-layout-review-analysis/

#PCB #Design #Tutorial

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Repairing a JBL LSR308 studio monitor speaker.
Digital troubleshooting in a speaker? Yep, that's a thing!
How to systematically track down a fault and *know* that part has failed.

Full 55min video: https://www.youtube.com/watch?v=XQgoss_adIo

Forum:

00:00 - Introduction
01:55 - Inside
04:42 - The chips
07:05 - Voltage checks
07:58 - Safety protection
08:18 - Oscilloscope time
10:29 - ADC checks
11:59 - Signal injection testing

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The SunPlower is supposed to be able to power mobile phone towers, propel boats and submarines, and fly you around in an Air-Taxi!
Let's turn flat solar panels into wind turbine blades!
The laws of physics and engineering might have a lot to say about that...

WindWall video: https://www.youtube.com/watch?v=WG-vTc7SwU0
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Forum: https://www.eevblog.com/forum/blog/eevblog-1321-sunplower-dumbest-idea-since-solar-roadways!/

#Debunking #SolarPower #WindPower

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Answering a forum question from an engineering student. Advice for getting internships, jobs, and how to stand out on in your resume.

Playlist of Job Interview tips: https://www.youtube.com/playlist?list=PLCF57EF884076F6B2
How to get around Human Resources HR droids: https://youtu.be/0Tk13MijU4Y?t=720
Original question: https://www.eevblog.com/forum/chat/electrical-engineering-student-looking-for-ways-to-improve-resume/
Forum: https://www.eevblog.com/forum/eevblab/eevblab-78-engineering-student-advice/

#Engineering #Student #Advice

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9 year old video! Youtube screwed up the audio sync in the original rendering it useless, so this is the re-upload.
Dave runs through his top 5 career and life tips for electronics engineering graduates.

#Engineering #Career #Advice

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Don't be caught out by embarrassing premature triggering!
Dave demonstrates how and why your oscilloscope may trigger before it's supposed to, and how to solve it.

Forum: https://www.eevblog.com/forum/blog/eevblog-1320-premature-oscilloscope-triggering/

#Oscilloscope #Tutorial #Triggering

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Only Dave can think that TV packaging boxes are interesting enough from a product design perspective to make a video about them.

Forum: https://www.eevblog.com/forum/eevblab/eevblab-77-tv-packaging-technology-is-interesting/

#TV #Packaging #Engineering

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The TS80P is the upgrade to the TS80, Dave's previous favorite portable soldering iron. But with added USB-PD and 30W vs 18W.

Various Aliexpress stores:
https://s.click.aliexpress.com/e/_BfZODpxj
https://s.click.aliexpress.com/e/_dUG2CxP
TC66 USB-C PD Power Monitor/Logger: https://s.click.aliexpress.com/e/_Bf8wne37

Original TS80 Review: https://www.youtube.com/watch?v=7iYcpiY2T2U
Follow-up: https://www.youtube.com/watch?v=7iYcpiY2T2U

Forum: https://www.eevblog.com/forum/blog/eevblog-1319-new-ts80p-portable-usb-pd-soldering-iron-review/

#USB #Soldering #Review

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Youtube is about to make a HUGE change to mid-roll ads on every video on every channel. All creators are about to be opted-in to mid-roll ads for new AND existing content.
You are about to be bombarded with ads!
This also potentially impacts the revenue and discover-ability of creators.
EXPERIMENT: I have enabled automatic mid-roll ads for THIS VIDEO ONLY as an experiment to see what impact it has on income, discover-ability, and how many automatic ads Youtube inserts.

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#Youtube #Adpocolypse

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Youtube have deleted Jordan Pier's (JPdylon) Youtube electronics repair channel.
This is getting ridiculous. Every creator need to be on alternative platforms like Library and Bitchute.
http://www.repairaudio.com/index-old.html
https://www.facebook.com/classicaudiorepairinc/

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Is there a better chopper/auto-zero amplifier than the MAX4239 used in the uCurrent?
A look at the exciting world of parametric searching for components. Follow along as Dave looks for a new state-of-the-art opamp. Success not guaranteed!

Cascading opamps for increased gain: https://www.youtube.com/watch?v=ZvT9hHG17tQ

Forum: https://www.eevblog.com/forum/blog/eevblog-1318-whats-state-of-the-art-in-current-opamps/

#opamp #design #tutorial

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$140 for a 2CH 100MHz 1GS/s tablet oscilloscope?
Review of the $140 FNIRSI-1013D 2CH 100MHz 1GS/s tablet oscilloscope.
Is it too good to be true?
Fnirsi Aliexpress Store: http://s.click.aliexpress.com/e/_d8nfjVK
$70 pocket oscilloscope: https://www.youtube.com/watch?v=SIH48bIUU00

Forum: https://www.eevblog.com/forum/blog/eevblog-1317-$140-2ch-100mhz-fnirsi-tablet-oscilloscope-review/

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Quantum Computing from an Electrical Engineering perspective, with professor Andrea Morello from UNSW.

Full video on EEVdiscover: https://www.youtube.com/watch?v=jDW9bWSepB0

Forum: https://www.eevblog.com/forum/blog/eevblog-1316-quantum-computing-for-electrical-engineers/

#QuantumComputing #Science

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What's inside a Philips curved array ultrasound probe?

Multi-element ceramic transducers: https://pubs.rsna.org/doi/pdf/10.1148/radiographics.13.5.8210599

Previous video Ultrasound machine teardown: https://www.youtube.com/watch?v=1mOQGJsfC4E

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Forum: https://www.eevblog.com/forum/blog/eevblog-1315-ultrasound-probe-extreme-teardown!/

#Medical #Ultrasound #Teardown

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Complete teardown of an ATL/Philips HDI 3000 ultrasound machine.

Testing video: https://www.youtube.com/watch?v=JJwxFFpnt0M

Time Gain Control Compensation: https://www.ti.com/lit/an/slaa724/slaa724.pdf

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Forum: https://www.eevblog.com/forum/blog/eevblog-1314-ultrasound-machine-teardown!/

#Ultrasound #Teardown

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Double 13 is worse than normal 13, obviosuly. More mailbag.

Forum:

SPOILERS:
Back in the old lab!
Vintage Soviet PC.
10:42 3G modem with a funky antenna.
13:52 IOMEGA ZIP drive teardown
18:56 USB to RS485 interface
http://olegkutkov.me/
19:52 Another Byte magazine cover!
http://bytecovers.com/
21:41 Smoke alarm sensor teardowns
26:58 Reverse engineering a Cooler Master PSU
34:45 $1 ebay power adapter teardown gets Widlarized!
38:39 Stonetech smart integrated LCD module
https://www.stoneitech.com/

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Siglent oscilloscopes have a crazy crippling automatic waveform History mode that is always on, you can't switch it off, and it gobbles up all your sweet juicy sample memory.
Why?

Forum:

#Siglent #Oscilloscope #Review

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Zooming in is easy, but can your oscilloscope zoom OUT?
A look at the results of differences in scope acquisition architecture, and fixed vs auto memory depth.
And what's the difference between the STOP button and the SINGLE button?

Forum: https://www.eevblog.com/forum/testgear/oscilloscope-zoom-out-quirk/

#Oscilloscope #Tutorial #Quirk

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The 5G USB BioShield is an obvious SCAM.
Please share this this video with Facebook groups and other places where you see this scam advertised.

2nd part of the video coming soon on my 2nd channel.

A look at the 5G BioShield, a USB stick with magical powers that can produce a protective force shield around you and your home in order to prevent "dangerous" 5G radiation and "electric smog".
Also a look at many other 5G blocker scam products and talk about the safety of 5G, electromagnetic non-ionising RF radiation.

Links: https://www.pentestpartners.com/security-blog/reverse-engineering-a-5g-bioshield/
Non-Ionising RF Safety Authority: https://www.icnirp.org/en/applications/5g/index.html
The full wackjob paper: https://www.ijsr.net/archive/v8i10/ART20201755.pdf

Video of the scammers talking about the product: https://www.youtube.com/watch?v=QzYntv-c3u0

Forum: https://www.eevblog.com/forum/blog/eevblog-1310-5g-usb-bioshield-scam!/

#5G #Scam

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Teardown of the new Siglent SDS2000X Plus $999 oscilloscope.
Can it be hacked to 500MHz?

Hacking thread: https://www.eevblog.com/forum/testgear/siglent-sds2000x-plus-hack/
Siglent SDS5000X review: https://www.youtube.com/watch?v=oxu19IFHMgc

Forum: https://www.eevblog.com/forum/blog/eevblog-1309-siglent-sds2000x-plus-oscilloscope-teardown/

#Oscilloscope #Siglent #Teardown

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Will a 1970's era Intel 8085 design kit power up after 40 years?
A look at the Intel MCS-85 System Design Kit and some vintage computer and processor history.

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Forum: https://www.eevblog.com/forum/blog/eevblog-1308-1970s-intel-mcs-85-8085-design-kit/

#Intel #Vintage #8bit

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Created 2 years, 9 months ago.

410 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

DONATIONS:
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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.
So I will no longer answer such emails as a rule, sorry.
I read ALL email, and try to read all Youtube comments, but please don't be offended if I don't have time to reply.
I don't read or respond to ANY private messages on youtube.

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