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/
Support the EEVblog on:
Patreon: http://www.patreon.com/eevblog
Odysee: https://odysee.com/@eevblog:7
Web Site: http://www.eevblog.com
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g
Buy anything through that link and Dave gets a commission at no cost to you.
Donate With Bitcoin & Other Crypto Currencies!
https://www.eevblog.com/crypto-currency/
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Tutorial #Zener
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
If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
Or with crypto:
BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM
ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c
BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4
USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c
LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF
Web Site: http://www.eevblog.com
Store: https://eevblog.store/
Other channels:
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Debunking #scam
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
If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
Or with crypto:
BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM
ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c
BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4
USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c
LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF
Web Site: http://www.eevblog.com
Store: https://eevblog.store/
Other channels:
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Tesla #opensource
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
If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
Or with crypto:
BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM
ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c
BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4
USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c
LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF
Web Site: http://www.eevblog.com
Other channels:
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Teardown #Calibration
Is a $42 Fluke multimeter any good? The Fluke 101 reviewed.
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
If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
Or with crypto:
BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM
ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c
BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4
USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c
LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF
Web Site: http://www.eevblog.com
Other channels:
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Fluke #Multimeter
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?
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
If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
Or with crypto:
BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM
ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c
BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4
USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c
LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF
Web Site: http://www.eevblog.com
Other channels:
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Tesla #gigafactory
Oceana is at war with Eurasia.
Oceana has always been at war with Eurasia.
Kamala is not the Border Czar.
Kamala has never been the Border Czar.
This explains a lot of what happened in Butler, PA. A DEI Director of the Secret Service. Meet Kimberly Cheatle. She might not be up for the job but she gets to keep it because of DEI. Oh, and anybody hot for DEI is almost guaranteed to be a Trump hater which explains why the Secret Service turned down a request by the Trump campaign for an increase in security.
Border Czar Denialism on the part of much of the media just came to a screeching halt. Why? Mainly because of an INCREDIBLE video clip from Newsbusters exposing the media hypocrisy of denying that Kamala Harris was the BORDER CZAR and contrasting it with sound bites from the past from the same networks as the denialists proclaiming that Harris was indeed a... BORDER CZAR.
The big turnaround by the media, obviously HUMILIATED by the Newsbusters clip, could already be seen on the CNN Sunday shows of July 28 as they openly acknowledged Harris as BORDER CZAR. Too bad for you, Jonathan Karl of ABC News. Your absurd vociferous denialism is out there for all to see and laugh at. He claimed it was the Republicans who labeled Harris as Border Czar when his own ABC network also called her that. Your punishment, Jonathan Karl, is eternal humiliation as a completely exposed shmuck.
FLASHBACK: Kamala Harris said the border wall is a “vanity project”. She also said illegal immigration is “not an emergency”
Memory Hole: The Original Covid-19 Lie
By Matt Orfalea
August 23, 2023
https://censorednews.substack.com/p/memory-hole-the-original-covid-19
The COVID-19 lie that started it all -- before lockdowns and mandates -- was the lie that the virus was more deadly than it actually was. On March 3, 2020, the media cited the World Health Organization to spread the misinformation that the global death rate of COVID-19 was 3.4%. Years later, the WHO's much-expanded dataset now shows the real global case fatality rate is less than 1%. However, at the time, when the President of the United States correctly pointed out the figure was inflated, he was viciously attacked for "downplaying" the virus, as the WHO's misleading statistic was regurgitated in the press.
"WHO says the death rate is 3.4% globally, higher than previously thought" - CNBC
"The death rate now estimated at 3.4% for anyone afflicted with this virus" - FOX News
"3.4% of people who get coronavirus die from it." - USA TODAY
The WHO's death rate was severely inflated because most COVID-19 cases are mild with no symptoms and are therefore never reported. In fact, Dr. Fauci and the Director of the CDC, Dr. Redfield predicted as much just three days prior to the WHO's misleading 3.4% death rate. In the New England Journal of Medicine, Fauci and Redfield concluded the number could be "considerably less than 1%". This contradiction between US public health officials and the WHO went mostly ignored. The media was only triggered into a response when Donald Trump used the same scientific reasoning on FOX News with Sean Hannity.
PRESIDENT TRUMP: "Well, I think the 3.4% is really a false number. Now, this is just my hunch, but based on a lot of conversations with a lot of people that do this, because a lot of people will have this, and it's very mild. They will get better very rapidly. They don't even see a doctor. They don't even call a doctor. You never hear about those people."
Trump repeated his reasoning for clarity, although his full explanation was later deleted from nearly all mainstream news segments which criticized him for sharing thoughts "based on nothing" (John Berman, "CNN New Day", CNN, 3/5/20).
PRESIDENT TRUMP: "When you do have a death . . . all of a sudden, it seems like three or four percent, which is a very high number, as opposed to a fraction of one percent. But, again, they don't know about the easy cases, because the easy cases don't go to the hospital. They don't report to doctors or the hospital in many cases. So I think that that number is very high. I think the number -- personally, I would say the number is way under 1 percent.
MEDIA MISINFORMATION / DISINFORMATION
Former Vox reporter and special guest to the Biden White House, Aaron Rupar, reflexively attacked Trump's rational, and ultimately correct, take on the WHO death rate, as "astoundingly irresponsible".
Over the following days, Trump was mocked on nearly every major television channel (CNN, MSNBC, NBC, ABC, CBS, & Comedy Central), where he was accused of lying.
MSNBC hosts and experts labeled Trump's correct take on the death rate as "not correct", "not true", "dishonest", and "disinformation" (Andrea Mitchell, Ben Rhodes, and Geoff Bennett on "Andrea Mitchell Reports"); "false information", (Chris Jansing on "Live with Hallie Jackson"); and "misinformation" ("Live with Velshi and Ruhle").
CNN's reporters and pundits did the same, calling Trump's informed skepticism "disinformation" (Brian Stelter, "CNN Newsroom"); "misinformation" (Anderson Cooper, "Anderson Cooper 360"); and "sketchy information" (Jim Acosta, "The Situation Room with Wolf Blitzer").
(NOTE: This is only a small sample of the false accusations.)
After the news set the narrative, late-night hosts took their cues and obediently forwarded the message that WHO's word reigns supreme and therefore Trump is crazy to question it.
"Trump has a hunch that coronavirus is not as deadly as people think. In fact, he personally has a feeling that the death rate is lower than 1 percent. What the fuck is that?!" - Trevor Noah, "The Daily Show" (Comedy Central, 3/6/20)
"One percent . . . Will someone put a mozzarella stick in his stupid hole before he gets us all killed?" - Jimmy Kimmel, "Jimmy Kimmel Live" (ABC, 3/6/20)
"[Trump] lied about the most recent World Health Organization estimates." - Stephen Colbert, "The Late Show with Stephen Colbert" (CBS, 3/6/20)
"Trump lied to viewers about the mortality rate." - Seth Meyers, "Late Night with Seth Meyers" (NBC, 3/6/20)
The media narrative was that Trump's "less than 1%" figure was not supported by scientists, doctors, or data, but it was. The nation's top doctors, health authorities (CDC), and data from South Korea -- the country with the most COVID testing per capita, which calculated the death rate to be 0.6% -- all supported Trump's take.
DANGEROUS THOUGHTS
The public was told that it was not only crazy to question WHO authority but dangerous. "Is there danger in Donald Trump going on FOX News and telling that network's viewers that, 'I don't believe the WHO"? . . . I mean, is it dangerous to have conflicting messages out there...?," asked former George W. Bush admin communications director Nicolle Wallace on her MSNBC show. "It's certainly not helpful," replied Democrat Congresswoman Lauren Underwood.
Several more pundits affirmed Wallace's Orwellian notion that the mere existence of a second opinion was "dangerous". The newscasters and their experts told Americans it was "dangerous" to have a hunch -- that it was "dangerous" to think.
"I think we're in a very dangerous period if the President continus to hunch about scientific facts." - Kathleen Sebelius, "AM Joy", MSNBC (3/7/20)
"President Trumps's weaknesses -- a disdain for expertise . . . that is very dangerous in a pandemic, and so what I would like to see now is an effort to get the experts front and center." - Ben Rhodes, "Andrea Mitchell Reports", MSNBC (3/5/20)
"These interviews with Sean Hannity on FOX…can be dangerous . . . when [Trump] is spreading misinformation and disinformation . . . When the POTUS spreads misinformation . . . that can be dangerous . . . and for the record, right now, WHO says 3.4%." - Brian Stelter, "CNN Newsroom", CNN (3/5/20)
It was during this fear-mongering of both the virus and independent thought that destructive lockdown policies were adopted across the United States.
Later, on March 23, 2020, with lockdowns already in effect, after nearly every show on CNN attacked Trump for questioning the WHO's 3.4% death rate, CNN's own expert, Dr. John Ioannidis, expressed the same skepticism as Trump, live on CNN.
"Initially, WHO released estimates of 3.4% of the cases dying, The true infection fatality rate is likely to be far, far less. It may be in the range of seasonal influenza." - Dr. John Ioannidis, "Out Front with Erin Burnett", CNN (3/23/20)
The death rate for seasonal influenza is way under 1%.
Original YouTube Video:
https://www.youtube.com/watch?v=-s5DYknp9cc
........................
The best of the best of the best COVID-19 resources, videos, and memes:
Resources:
https://sunfellow.com/top-covid-19-resources/
It's not working. The Morning Joe Show on July 11 attempted to take solace from a Washington Post poll showing Biden and Trump running even. Yet the very same poll also showed a MAJORITY of Democrats wanted Joe Biden to drop out of the presidential race and a stunning TWO THIRDS overall wanted Biden to split. You can see these troubling numbers, dire for Biden, play out over Morning Mika's face as she struggles unsuccessfully to suppress her extreme grief over what has happened to her beloved Joe Biden ever since he collapsed in the polls on the heels of his embarrassing self-humiliation during the debate with Orange Man Bad.
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/
Support the EEVblog on:
Patreon: http://www.patreon.com/eevblog
Odysee: https://odysee.com/@eevblog:7
Web Site: http://www.eevblog.com
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover
AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g
Buy anything through that link and Dave gets a commission at no cost to you.
Donate With Bitcoin & Other Crypto Currencies!
https://www.eevblog.com/crypto-currency/
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Tutorial #Zener