The Portable Kinetic Molecular Heater is an obvious SCAM.
We shouldn't have to look at why, but let's do it anyway.

Forum: https://www.eevblog.com/forum/blog/eevblog-1585-scam!-portable-kinetic-molecular-heater-busted/

00:00 - Portable Kinetic Molecular Heater
01:06 - Yep, it's a scam
03:06 - A look at the ridiculous website claims
06:31 - It can heat your entire home and melt the snow on your roof!
07:27 - Running the numbers on the Latent Heat equation.
12:05 - The BS comes in many flavours
15:14 - Teardown of the actual Portable Kinetic Molecular Heater
17:52 - Thermal camera test

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Elon Musk just announced that the Tesla Roadster is now open source! Do we get schematics? Let's have a look...
https://service.tesla.com/roadster
Part 2: https://www.youtube.com/watch?v=r7Cw3GVXl44

New Open Source Logo video: https://www.youtube.com/watch?v=5wrSXCBdalc

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A multimeter without any screws? A 1990's vintage Metrix MX44 multimeter torn down, tested and calibration adjusted.

Tektronix Multimeter Repair-o-thon
https://www.youtube.com/watch?v=2QZ8GWwzXXY

Forum: https://www.eevblog.com/forum/blog/eevblog-1578-the-screwless-multimeter-metrix-mx44-teardown-calibration/

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Is a $42 Fluke multimeter any good? The Fluke 101 reviewed.

https://tinyurl.com/Fluke101

A thanks from Zotek founder: https://www.youtube.com/watch?v=2I7m43RyVWU

Pocket Multimeter shootout: https://www.youtube.com/watch?v=LCFEonQDkQU

Forum: https://www.eevblog.com/forum/blog/eevblog-1574-is-the-$42-fluke-101-multimeter-any-good/

00:00 - A $42 Fluke?
00:43 - Made in China, and the infamous Fluke 19
01:27 - Fluke 101 vs 106 vs 107
02:00 - Comaprison with ANENG AN8008
03:03 - The display vs the AvE Hammer
03:53 - The range switch
04:12 - The battery compartment and TL75 probe leads
06:09 - What are you buying here?
08:08 - Diode and capacitance test
09:33 - The biggest disappointment, no AutoHold
10:55 - 1200V overload test and accuracy testing
12:41 - Common mode conducted mode RFI test
13:10 - Drop testing
13:38 - Power on options
14:08 - Calibration seal and port
14:30 - Teardown
20:26 - A pocket multimeter?
21:51 - Battery life, power consumption measurements, and lithium battery test
42:09 - Conclusion

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Tesla unveiled to much fanfare, a DIESEL electric train to carry workers to and from their Berlin Gigafactory. LOL!
Dave runs the numbers on whether or not they could have used a Battery Electric Train (BEMU) instead of diesel electric. And could they have powered it from the solar panels on the train station roof?

Forum: https://www.eevblog.com/forum/blog/eevblog-1570-tesla-diesel-electric-train-fail-at-belin-gigafactory/

Links:
https://twitter.com/eevblog/status/1699034774701293812
https://en.wikipedia.org/wiki/Gigafactory_Berlin-Brandenburg
https://www.youtube.com/watch?v=OxXhC32Uv1E
https://www.youtube.com/watch?v=8Qtvevd-5Ek
MSN LINK REMOVED BY YOUTUBE AS A SCAM! LOL
https://insideevs.com/news/682009/tesla-gigafactory-berlin-v4-supercharger-solar-roof/
https://en.wikipedia.org/wiki/Bombardier_Talent
https://en.wikipedia.org/wiki/Bombardier_Talent_2
https://www.railway-technology.com/projects/bombardier-talent-3-battery-train/
https://www.railwaygazette.com/business/bombardier-and-leclanche-sign-battery-traction-mou/54744.article
https://www.railway-technology.com/features/train-engine-innovations/?cf-view
https://www.railvolution.net/news/talent-3-bemu-in-passenger-service
https://www.railexpress.com.au/bombardier-filling-the-gap/
https://www.vde.com/resource/blob/2068324/a35ebed9833dae59d8cb1451368203bd/vde-study-battery-systems-data.pdf
https://www.google.com.au/maps/@52.393417,13.7959197,892m/data=!3m1!1e3?entry=ttu
https://nl.wikipedia.org/wiki/NEB_VT_73
Byron Bay Solar train: https://www.youtube.com/watch?v=ZobJdaSDsPM
https://pvwatts.nrel.gov/pvwatts.php

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Teardown of the new $389 12bit Rigol DHO800 oscilloscope!

Forum: https://www.eevblog.com/forum/blog/eevblog-1563-new-$389-12bit-rigol-dho800-scope-teardown/

EXCLUSIVE Unboxing and first impressions video: https://www.eevblog.com/2023/09/01/website-exclusive-rigol-hdo800-oscilloscope-unboxing/

HDO1000 Teardown: https://www.youtube.com/watch?v=qEpkVa_ysaw
HDO4000 Teardown: https://www.youtube.com/watch?v=W1Jl0rMRGSg

00:00 - Rigol's NEW $389 DHO800 12 bit Oscilloscope!
02:43 - USB-C Powered
03:19 - Teardown of the Small Sparrow, and the DHO900
06:39 - Heatsink Removed and cost reduction
08:01 - Is the USB-C connector robust enough?
11:25 - Plastic moulding
12:13 - Back side of PCB
12:48 - PCB Comparison with HDO1000
13:56 - The ADC
15:13 - What is the missing memory?
15:42 - BOM cost INCREASE? Why?
16:40 - Bypass caps WTF. Madman Muntz is turning in his grave!
17:42 - Front end comparison with DHO1000 and HDO4000
20:00 - The Logic Analyser
21:15 - The Arbitrary Waveform Generator option in the DHO900
22:39 - PCB summary, and Dave doesn't allow this type of production engineering!
22:31 - Serial boot dumping
25:56 - The boot Android O/S micro SD card
27:15 - Power consumption and summary

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The Moon Landing Hoax conspiricy theory BUSTED with Dave's original proof.

Dave does something no one else has done before - compare the original Apollo 17 16mm ascent camera footage to the Lunar Reconnaissance Orbiter (LRO) photos.
Will footage from 40 years apart match up to confirm the moon landing?

The Last Man On The Moon: http://amzn.to/2h1b6Xc
Audio Book: http://amzn.to/2uySy3X
Book: http://amzn.to/2uV67NB

LunarCognita Video: https://www.youtube.com/watch?v=7k28y1FL2TU
Inside & Outside footage: https://www.youtube.com/watch?v=XlGis35Epvs
NVIDIA moon landing proof: https://www.youtube.com/watch?v=O9y_AVYMEUs
Lunar Roving Vehicle Handbook: https://www.hq.nasa.gov/alsj/a16/A16OTM15-42.pdf
Third party evidence: https://en.wikipedia.org/wiki/Third-party_evidence_for_Apollo_Moon_landings
Apollo cameras: https://en.wikipedia.org/wiki/Apollo_TV_camera

Forum: https://www.eevblog.com/forum/blog/eevblog-1548-moon-landing-hoax-busted/

If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog

00:00 - The Moon Landing HOAX
00:27 - Apollo 17 ascent footage
02:05 - The little known 17mm film footage
03:02 - Lunar Reconnaissance Orbiter photos
03:35 - Can we match 40 year old film footage to current LRO photos?
05:47 - Take THAT!
07:51 - Gene Cernan
09:02 - The NVIDIA simulation photo proof

Web Site: http://www.eevblog.com

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#moon #conspiracy #busted

After the 3+ year experiment that started in March 2019 we FINALLY have some alkaline battery leakage failures! Did the Duracell's fail?

That pesky potassium hydroxide forming potassium carbonate.

Battery leakage video playlist: https://www.youtube.com/playlist?list=PL24OiKqd2iN9n2Xk_7Y0gN5t44vtBud_C

Forum: https://www.eevblog.com/forum/blog/eevblog-1508-we-finally-got-alkaline-battery-leakage!/

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#ElectronicsCreators #Alkaline #Battery

Meet 13yo Josh, the winner of the Jaycar $5 scope, and designer of Framework laptop boards!
https://lectronz.com/products/uart-expansion-card
His Patreon: https://www.patreon.com/i2clabs
More boards: https://imgur.com/a/SPRrFV7

00:00 - Meet Josh
03:22 - Mettler Toledo high volatge generator
04:41 - New electric field NASA space suits
https://sservi.nasa.gov/wp-content/uploads/2015/08/farrell_spacesuit_pdf.pdf
05:37 - Teardown: OMG it's full of rust!
10:06 - Casio VI-9850GB Plus PAL projector calculator!
19:59 - Kogan video doorbell teardown + Dick Smith story
26:48 - Tom Moffat & the Listening Post kits!
35:47 - Reference Capacitor Box
https://www.ak-modul-bus.de/stat/referenz_kondensatorn_reference_caps,pd0,,REFERENCE-CAPS.html
45:00 - Creative Outlier Pro active noise cancelling wireless ear buds.
https://au.creative.com/p/headphones-headsets/creative-outlier-pro
50:09 - Finirsi DSO-TC2 Portable Digital Oscilloscope Transistor Tester + SG-003A Process Meter
Full video: https://www.youtube.com/watch?v=f_SdM6sXHD4

Forum: https://www.eevblog.com/forum/blog/eevblog-1496-winning-mailbag/

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A follow up to the previous video on repairing the heater.
A viewer asked how the capacitor diode rectifier gave a 24V output. The key is in the zener regulator, so this vidoe looks at how mains powered zener voltage regulators work, and their limitations.
X class capacitor and self healing.
Zener diode tutorial video: https://www.youtube.com/watch?v=O0ifJ4oVdG4
Dodgy Dangerous Repait video: https://www.youtube.com/watch?v=myqiqUE00fo
Forum: https://www.eevblog.com/forum/blog/eevblog-1482-mains-capacitor-zener-regulator-circuit/

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#ElectronicsCreators #Tutorial #Zener

A world exclusive teardown of the new generation Tektronix 2 Series MSO bench/portable oscilloscope!
An innovative new design form factor you're either going to love or hate!
This is the upgrade to the 15yo MSO/DPO 2000B series to give a low end on the next generation 2/3/4/5/6 series.
https://www.tek.com/en/products/oscilloscopes/2-series-mso

Unboxing and first reaction video: https://www.youtube.com/watch?v=nO09bc5ozng
Talk with Andy Tedd from Tektronix about the design of the new 2 Series: https://www.youtube.com/watch?v=PcxEO3fA_Ls
Hi res teardown photos: https://www.eevblog.com/2022/06/07/eevblog-1477-world-exclusive-teardown-tektronix-2-series-oscilloscope/

00:00 - World Exclusive Teardown of the new Tektronix 2 Series Oscilloscope
00:39 - The stand is a thing of beauty and a joy forever
01:13 - The tablet-like form factor and VESA mount & design decisions
02:55 - Teardown - PCB design driving the case design
05:03 - Was there room for real buttons?
06:12 - The power and grounding interface and why is it on the side?
07:51 - Was there room for an internal battery pack?
08:35 - The VESA mount
09:28 - Back side of the analog front end
13:12 - True single PCB design
15:07 - Don't forget your knobs!
15:40 - Internal fans
16:37 - BNC interface
18:32 - One-piece metal chassis and heatsink design
18:59 - The PCB
21:59 - The Tek026 analog front end revealed
23:49 - DaveHead commentary and closer look at the bottom side PCB
26:26 - Top side PCB commentary
26:42 - Custom Tek Arg Gen ASIC ADG395C
27:23 - FPGA BGA thermal expansion glue
28:06 - Xilinx ZYNQ UltraScale+ FPGA
29:02 - The Lexington architecture block diagram
31:18 - Why so much sample memory?
32:38 - Product positioning and crippling
34:47 - The ADC - It's NOT the Tek049
37:29 - Trigger input, PLL, and Battery input switching
38:24 - Digital Inputs
39:24 - External battery pack teardown
43:00 - Playing with the funky stand

Forum: https://www.eevblog.com/forum/testgear/new-next-gen-tektronix-scope/

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#ElectronicsCreators #Tektronix #Teardown

Complex numbers are NOT complex!
How complex numbers are used in AC circuit analysis.

00:00 - Complex Numbers
00:44 - Phasor graphical addition
01:22 - Why do calculators have the R-P and P-R buttons?
02:44 - Phasor diagram
03:59 - The AC voltage equation
04:47 - The complex plane and j vs i imaginary axis
06:21 - The Rectangular and Polar forms
07:36 - The j operator
10:38 - Polar and Rectangular format conversion
11:50 - Plotting points on the complex plane

Forum: https://www.eevblog.com/forum/blog/eevblog-1470-ac-basics-tutorial-part-3-complex-numbers/

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Dave debunks the marketing claims of self-charging Nano Diamond Batteries in the first 10 minutes using their own material. The rest of the video is cream on top.
NDB Inc supposedly have a nano diamond self-charging nuclear battery that will revolutionise the energy industry and power electric vehicle and mobile phones.
TLDR; it's no better than existing 100uW commercial betavoltaic batteries, but has an added graphene supercapacitor in the AA package.The rest is marketing BS.
https://ndb.technology/
Check out the Investor pack!: https://ndb.technology/pitch/NDB_Investor_Pack.pdf

Thunderf00t's Nuclear diamond battery BUSTED video: https://www.youtube.com/watch?v=JDFlV0OEK5E

Betavoltaics presentation from City Labs: https://www.energy.gov/sites/prod/files/2015/08/f26/Cabauy%20Tritium%20Focus%20Group%20Presentation.pdf

Forum: https://www.eevblog.com/forum/blog/eevblog-1333-nano-diamond-self-charging-battery-debunked!/

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#Nuclear #Diamond #Battery

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

Forum:

EEVblog Main Web Site: http://www.eevblog.com
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If you aren't subscribed to EEVblog2 then you are missing out on a bunch of good stuff!
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