hybridfree/eevblog-posts huggingface dataset:
3 LEDs, 3 switches, a resistor and a 9V battery in series: switching LEDs - Page 1
Forum section: electronics / general

author: golden_labels
author_rank: Super Contributor
timestamp: September 03, 2019, 07:09:51 pm
content: Not a product, but I believe that will baffle a lot of you.I bow before Henryk Gasperowicz for pulling it off so perfectly!

author: SiliconWizard
author_rank: Super Contributor
timestamp: September 03, 2019, 07:50:58 pm
content: Uh huh.

author: golden_labels
author_rank: Super Contributor
timestamp: September 03, 2019, 10:28:20 pm
content: … and now other people will have no fun.

author: Vancarant
author_rank: Newbie
timestamp: September 04, 2019, 07:23:04 am
content: All the problems I've encountered May end by seeking knowledge from this post.

author: SiliconWizard
author_rank: Super Contributor
timestamp: September 04, 2019, 03:31:00 pm
content: Quote from: golden_labels on September 03, 2019, 10:28:20 pmToo bad.Note that the little schematic shown in the original video is completely misleading, so that it's very close to just clickbait material.The solution at least gives something to think about. Now there's still fun to be had: try and imagine a solution for this simpler than what he did (simpler meaning, for instance, less components and/or no need for inductors, etc.) Anyone?

author: golden_labels
author_rank: Super Contributor
timestamp: September 04, 2019, 07:52:31 pm
content: I know that the picture is misleading, but so are many presentations of dodgy technology. His project shows how far one can currently go with relatively simple methods. How easy it is to create a fake that seems to have no trickery involved.He offered a simpler cirtcuit too — the one without switches.

author: Kean
author_rank: Unknown
timestamp: September 05, 2019, 12:50:11 pm
content: This is pretty old, and has been posted here on EEVblog beforehttps://www.eevblog.com/forum/chat/you-think-you-are-an-expert-how-does-this-work/Along with two other variationshttps://www.eevblog.com/forum/projects/6-series-led-circuit-by-fredzislaw100/https://www.eevblog.com/forum/projects/new-fredzislaw100-challenge-wireless/
Looks like we have a canidate for the free energy woo-woo of the year award - Page 1
Forum section: electronics / general

author: www2
author_rank: Contributor
timestamp: May 05, 2019, 09:35:38 pm
content: This candidate for the "free energy woo-woo of the year award" clams that get energy from gravity with a efficiency of 80%.http://www.gravityenergy.nl/

author: Rjevski
author_rank: Unknown
timestamp: May 06, 2019, 01:04:56 am
content: At first I misread that as 800% and I suspected Batterisers were involved.

author: vk6zgo
author_rank: Super Contributor
timestamp: May 06, 2019, 02:00:04 am
content: Quote from: www2 on May 05, 2019, 09:35:38 pmLighthouses used to have "gravity energy storage" devices to rotate the light.There was a big weight on a chain which slowly "fell" from near the top of the lighthouse tower to the bottom.Every few days, the Lighthouse keeper would wind it up with a big "crank handle".

author: Domagoj T
author_rank: Frequent Contributor
timestamp: May 08, 2019, 12:04:33 pm
content: Don't hydroelectric power plants regularly achieve 90-95% efficiency?

author: benbradley
author_rank: Contributor
timestamp: May 09, 2019, 04:26:01 am
content: I watched the video and I'm only the second thumbs down, can anyone "help" with this?

author: MrMobodies
author_rank: Super Contributor
timestamp: May 09, 2019, 08:12:03 am
content: That Gravity Energy © proof of principle 2016 video with the balancing weight reminds me of that box shimmering on its own inThe EEVblog Lab VIBRATES!video.I don't think you can get any energy out of that.

author: pwlps
author_rank: Frequent Contributor
timestamp: May 09, 2019, 12:32:49 pm
content: The last picture on their homepage explains how it works: we need an elephant (not included) to make it vibrate.

author: Canis Dirus Leidy
author_rank: Regular Contributor
timestamp: May 16, 2019, 03:49:45 am
content: Quote from: benbradley on May 09, 2019, 04:26:01 amApparently, these guysreinventedthe wheelone of these pseudo perpetual motion toyslike "drinking bird" or barometric clock.P.S. "Fake? No, sir. There was two dollars' worth of fluid extract of cinchona and a dime's worth of aniline in that half-gross of bitters. I've gone through towns years afterwards and had folks ask for 'em again."(q)Jeff Peters as a Personal Magnet.

author: Konkedout
author_rank: Frequent Contributor
timestamp: June 25, 2019, 05:40:54 am
content: Not certain but I think they are just using gravity to store energy in what looks like an inverted pendulum. This is nothing new. An ordinary pendulum cycles energy between kinetic and potential with every half cycle. Large scale energy storage by pumping water up and letting it fall through a hydro plant is another example.
Toothbrush thing - marketing wank - Page 1
Forum section: electronics / general

author: JuanGg
author_rank: Regular Contributor
timestamp: June 22, 2019, 10:09:17 am
content: I just thought it was funny. Judge for yourselves.Juan

author: Halcyon
author_rank: Unknown
timestamp: June 24, 2019, 01:24:20 am
content: I'm more surprised that you sat through the ad rather than choosing to skip it. ;-)
US patent 4,258,405: capturing back EMF, does it work? - Page 1
Forum section: electronics / general

author: magic
author_rank: Super Contributor
timestamp: June 20, 2019, 09:52:17 am
content: This post is inspired by a now-closed thread in another subforum about the following problem: we charge a capacitor to high voltage, discharge it quickly through some inductive load and now all the energy that didn't end up performing external work is fed back into the capacitor at reverse polarity.So the idea is to somehow capture that energy and put it back in the capacitor at right polarity. The OP of that thread proposed a diode bridge, but this just becomes a freewheeling device around the inductor in practice, so it doesn't work.Which reminded me that I have seen a similar solution in the past, that somebody even got a patent on, but I'm not quite sure if it's going to work either.The round devices are basically triggered spark gaps - triggering circuit 13,14 produces sparks which ignite arcs between the main electrodes and the devices conduct until current falls to zero. Think thyristors.The idea is that after the capacitor is discharged, coil current is supposed to move to diodes away from those switches, extinguishing them and allowing the capacitor to recharge.My objection is that when the capacitor discharges and back EMF rises enough that diode conduction becomes possible, the ignitrons/SCRs still have significant current through them and therefore ane "on" and current flowing through diode 15 will have little reason to flow into the capacitor and charge it rather than take a short path through switch 11. Ditto for the other half of the circuit. I haven't tried it but it seems to me like the switches would need to have some significant negative resistance for that to maybe have a chance of workingAnd of course a surely working solution is to use switching devices that can be turned off during conduction plus appropriate control circuitry, but simplicity (and price) won't be quite the same.

author: capt bullshot
author_rank: Super Contributor
timestamp: June 20, 2019, 10:13:20 am
content: This just looks like a two-switch forward (or maybe flyback) converter architecture.Stored energy is returned to the capacitor when the switches turn off through the diodes.Look at the left hand side of the circuit, this is just a random picture found on the internet. Ignore the batteries on the right hand side.Yes, I guess it depends on the switches' properties if the patent circuit works as desired. In general, an arc would starve while current zero cross, so in general it should work.
Scam products on Amazon - Page 1
Forum section: electronics / general

author: MrMobodies
author_rank: Super Contributor
timestamp: July 03, 2019, 12:38:41 am
content: eLink EMF Neutralizer - Whole House Plug Protection Device by eLink$39.95Sold by HGID and Fulfilled by Amazon.https://www.amazon.com/eLink-EMF-Neutralizer-Protection-Device/dp/B00TRM0UI4/QuoteQuote15 Amp 125-Volt Double Pole 3-Wire Grounding Plug, BlackThat is only a 120v 15a Leviton plug that you can get for $2.79.https://www.homedepot.com/p/Leviton-15-Amp-125-Volt-Double-Pole-3-Wire-Grounding-Plug-Black-R50-3W101-00E/205165472QuoteOn the review pictures they found some epoxy inside and one reviewer found nothing.QuoteAmazon Disclaimer at the bottom of the page.:The feedback on this scam and the picture is so obvious but read below:QuoteI guess this is how they can continue trading that rubbish and allowed to keep on scamming.So Amazon allows these kinds of scams to go on if a disclaimer is put at the bottom the page despite the negative feedback and that is how they get out of legal issues.

author: Stray Electron
author_rank: Super Contributor
timestamp: July 03, 2019, 06:27:05 pm
content: "Contact Seller HGID directly for technical & return issues."should be a giant red flag to anyone considering buying one of these.Amazon is selling a lot of shoddy products these days. They're almost as bad as Flea-bay in that regard.

author: dcbrown73
author_rank: Regular Contributor
timestamp: July 03, 2019, 06:36:11 pm
content: I need a few of those. I hope they have enough in stock.

author: JamesAllen
author_rank: Newbie
timestamp: July 04, 2019, 01:49:51 pm
content: Amazon seems to be getting worse with spurious product quality.Generally the "Fulfilled by Amazon" tag is good hint that the product is OK, but still take some care and do your research before purchasing.
Not dodgy as such, but... WTF? - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: June 15, 2019, 07:27:10 pm
content: Okay, seriously?https://www.ebay.com/itm/An-Excellent-Gift-30-000-Network-Supercomputer-Computer-Circuit-Board/333185145746?hash=item4d9361db92:g:JHkAAOSwjiZc0DWk

author: Koen
author_rank: Frequent Contributor
timestamp: June 15, 2019, 08:17:08 pm
content: QuoteHa bollocks, I've been searching for this for years but the regular clockwise version.

author: Ysjoelfir
author_rank: Frequent Contributor
timestamp: June 17, 2019, 05:49:38 am
content: Well, beside being overpriced as hell that thing is insanely ugly.Why is it supposed to be that expensive? What kind of Supercomputer is using that board? I see some early 2000s ICs, so can't be that "super" in nowadays terms, can it?

author: mikerj
author_rank: Super Contributor
timestamp: June 17, 2019, 02:47:11 pm
content: One-Of-A Kind CollectiblePricelessItem$1090

author: exe
author_rank: Unknown
timestamp: June 17, 2019, 03:31:21 pm
content: Make a $10 offer, chances are it will be accepted

author: Ysjoelfir
author_rank: Frequent Contributor
timestamp: June 17, 2019, 05:04:59 pm
content: Quote from: exe on June 17, 2019, 03:31:21 pmI thought about it, but... then I would have to pay 50$ shipping for that ugly piece of.... well, you know what I mean.

author: james_s
author_rank: Super Contributor
timestamp: June 17, 2019, 05:07:39 pm
content: Well it's not my cup of tea, but I've seen uglier "art" sell for a whole lot more. To each their own.
Jump starter cable - really thick = really good... - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: August 19, 2019, 07:36:45 am
content: Copper's apparently cheaper than rubber

author: Raj
author_rank: Frequent Contributor
timestamp: August 19, 2019, 07:38:21 am
content: I would buy it, but not as a jumper cable, there's no chance of damaging that in workshop.... Link to the shop please

author: Rerouter
author_rank: Super Contributor
timestamp: August 19, 2019, 07:41:57 am
content: more common than you think, even found the same in welding ground cables, trimmed back the heatshrink off the where the wire was joined, and it was barely thicker than 3mm, with like 10mm of insulation thickness.Its part of why they say to not run high current loads over extension leads, if its not from a hardware store, your probably not getting a full mains current rated lead,

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 19, 2019, 07:54:54 am
content: Even worse, when it's CCA, or even CCsteel.Tim

author: David Hess
author_rank: Super Contributor
timestamp: August 19, 2019, 04:46:43 pm
content: That sort of thing is more common than it should be. I am surprised there are not billboards with the slogan, "Marketing is Truth".

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 19, 2019, 05:08:04 pm
content: CONSUMEOr there's a pub near me that always has the sandwich board outside, reading "EAT". I always find it a little amusing, given the above context.Tim
OST scam - Page 1
Forum section: electronics / general

author: MrMobodies
author_rank: Super Contributor
timestamp: May 31, 2019, 05:14:06 am
content: I was looking for a tool to look into Outlook cache files to see what spam mail might have caused problems.I found one on Codeplex but not before finding a lot of lookalike copies of this tool that dominates Google search and it seems that there is a campaign to aggressively try and sell these things under different brand names. On boards they say it is free before the link or "there is no free tool etc. and to me the look dodgy and it is everywhere.The one that I found and works:https://archive.codeplex.com/?p=xstreaderVery basic but does the job.By just searching these are some out of the many that come up in front:https://archive.codeplex.com/?p=freeosttopstdownloadhttps://archive.codeplex.com/?p=osttopstconvertersoftwarehttps://archive.codeplex.com/?p=ostpsthttps://www.visordown.com/forum/general/ost-file-recovery-tool-recover-ost-filehttps://groups.google.com/forum/#!topic/microsoft.public.outlook.general/ZsawSQ0LzWcAnd they're not free.Just look on Google images and it is flooded with these lookalike things.Then there are people asking where can I get a viewer and the replies on most of them robot replies that links to one of those.I have reported a few to Microsoft who said that Codeplex was suppose to be free for developers and I was told they were going to be taken down.Do you think there is any justification for that nonsense?

author: rrinker
author_rank: Super Contributor
timestamp: May 31, 2019, 02:30:31 pm
content: I don't know about the others, but the Kernel product is legit. We regularly use their other tool which can read Exchange Server EDB files to save customers from themselves. It's a super handy tool for recovering unmountable databases, or for recovering data from old backups when there no longer is an Exchange server to mount it on.

author: MrMobodies
author_rank: Super Contributor
timestamp: May 31, 2019, 04:13:04 pm
content: Quote from: rrinker on May 31, 2019, 02:30:31 pmWell that's good.https://web.archive.org/web/20070205013239/http://www.kerneldatarecovery.com/I see they have been around since 2007 and they offer a free OST viewer tool.I see it doesn't look as dodgy as the others and that might be something I might be willing to buy when I need it.The one in the picture is also labelled Kernel but had "Lepede" by it which is also seems legitimate. It looks like they might have had an agreement to alter and distribute Kernel OS2 it but it is not easy to know what to trust when the search engine is flooded full of those things on the above links.
Bargain Basement CATV Amplifier - ummm.. no! - Page 1
Forum section: electronics / general

author: chicken
author_rank: Frequent Contributor
timestamp: May 29, 2019, 11:52:17 pm
content: Someone told me that CATV amplifiers can be used as cheap good-enough VHF/UHF receiver preamps. The one recommended cost about USD 30 on Amazon and performed ok-ish for my purpose.For science, I also checked AliExpress and couldn't resist the price of USD 7.90 delivered. Hey, at least I didn't buy the ones for USD 2.19.And? Does an USD 8 AliExpress CATV amplifier perform as well as the USD 30 version from Amazon? I doubt it, but I will never know for sure because I didn't dare to connect it to anything of value.PS: The transformer is held in place with double-sided foam tape, with the primary winding touching the edge of the PCB

author: alpher
author_rank: Frequent Contributor
timestamp: May 30, 2019, 12:36:14 am
content: And what's wrong here?Wanted to ask why you're afraid to connect it to anything, glanced at the nick and it all became clear.

author: Cyberdragon
author_rank: Super Contributor
timestamp: May 31, 2019, 04:31:15 am
content: That doesn't look like an insulation break. That looks like the wire got burned a bit and solder stuck to it.
Ebay seller tries to prove his free energy device - Page 1
Forum section: electronics / general

author: //Matt//
author_rank: Contributor
timestamp: May 25, 2019, 06:16:09 pm
content: I found this free energy generator on eBay. it claims to be able to generate free energy using magnets.The sad thing is that33 people already bought ithttps://www.ebay.co.uk/itm/153429394651?ul_noapp=truethis is the eBay linkThe link to the e-book they sent mehttps://www.magnet-motor4u.de/bookz/AFHHGJNGfghg56768765HMmhWWEWWWSD232334E79DFJHJKLAQGHF1621ODB492GA13EFfinal/mm19en.zip

author: ebastler
author_rank: Super Contributor
timestamp: May 25, 2019, 07:02:21 pm
content: 15280 pages?!This is sad. Enough material for some poor souls to waste years, trying to build these pointless devices...

author: newbrain
author_rank: Super Contributor
timestamp: May 26, 2019, 07:55:38 am
content: Quote from: ebastler on May 25, 2019, 07:02:21 pmA ~1GB download. I'm not going there.This is a textbook application of the "theory of the mountain of shit":"Any idiot can produce more shit than you can shovel".Unfortunately, the original (a copy of copy, in fact) is in Italian,but not much is lost in translation.
Radotech - Personal Full-Body Health Scanner - Page 1
Forum section: electronics / general

author: spoggle
author_rank: Newbie
timestamp: April 22, 2019, 04:16:21 am
content: Notable not just for really sketchy medical claims, but it also looks remarkably like a sex toy.https://www.indiegogo.com/projects/radotech-your-personal-full-body-health-scanner#/

author: Rerouter
author_rank: Super Contributor
timestamp: April 22, 2019, 04:28:25 am
content: At least from how I have heard it described from actual physiotherapists, Acupuncture is mainly used to cause increases of blood flow and localized swelling to help relieve muscle pain / promote healing (more resources to repair muscle tissue) not something that can be used to see the health of your internal organs.At my best guess there toy works on the concept of skin impedance,I love that "Clinically tested" does not mean clinically proven.

author: grizewald
author_rank: Frequent Contributor
timestamp: April 23, 2019, 04:24:02 pm
content: Not only is this obvious nonsense, but they really need to learn the difference between "principle" and "principal".
The Ocean Cleanup - Page 1
Forum section: electronics / general

author: TomS_
author_rank: Frequent Contributor
timestamp: April 09, 2019, 03:10:15 pm
content: Not quite sure what to make of this one:https://www.theoceancleanup.com/or whether it deserves to be in the dodgy technology forum.For the most part it seems like they are trying something. Although I do wonder at their claims of being able to remove 50% of plastics from parts of the ocean in 5 years...

author: RandallMcRee
author_rank: Frequent Contributor
timestamp: April 09, 2019, 04:14:50 pm
content: Quote from: TomS_ on April 09, 2019, 03:10:15 pmTheir past research looks legitimate. Published in reputable journals, etc.Sure, 50% in 5 years is a stretch goal, I guess.

author: Halcyon
author_rank: Unknown
timestamp: April 18, 2019, 06:55:45 am
content: I don't think that this should be in the "Dodgy Technology" section at all. There are a number of products out there designed to remove rubbish from the oceans. TheSeabin Projectis another one.We put it there in the first place, so any effort to reduce the amount of plastics and non-biodegradable materials from the environment is a win in my books.

author: Electro Detective
author_rank: Super Contributor
timestamp: April 18, 2019, 09:02:25 am
content: It's the slack governments worldwide that refuse to at least mutually agree to an overdue clean up,and educate their public with incentives to recycle and or take their knackered products to places that know what to dowho in turn get a fee from government and manufacturer coffers,which in turn SAVES them moneyand less tree huggers and animal righters breaking politicians ballsUnfortunately something simple like that to implement ends up in their 'too hard basket'and or because international sabre rattling gives them better woodies and payoffs,coupled with the power trip attitude"#$%^ the oceans, sewerage happens, not our problem, let the next lot sort it out..."Most of these nepotist assholes belong in asylums, not in positions of decisive powerMy vote on at this moment in time, based on the magnitude of the task, and money required that won't happen, is:"Dodgy Technology"
Another Free Energy Scam - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: April 10, 2019, 12:00:05 pm
content: https://powerefficiencyguide.com/I didn't even have to stat the video to know it's one of the formulaic scam videos.Let me guess, it goes on and on and on and on for 20 minutes abut how it's going to change the world, and finally tell you to send in a hundred bucks for the plans?EDIT: Some text but no detail:https://powerefficiencyguide.com/index_tsl_cb/EDIT2: I'm playing this bullshit at twice the speed. Yep, all the usual sob story BS, something to do with "spinning energy", finding secret plan in his uncles old lab or some crap, recharges itself, all you need is some wood, belts and pullyes from home depot... shoot me now...

author: EEVblog
author_rank: Unknown
timestamp: April 10, 2019, 12:08:16 pm
content: Were do they get these website scam templates from?They all look the same, all follow the same script, their websites all look the same. I've seen so may of these all running different scams.

author: HighVoltage
author_rank: Super Contributor
timestamp: April 10, 2019, 12:41:08 pm
content: May be the same company is behind all of them.

author: EEVblog
author_rank: Unknown
timestamp: April 10, 2019, 12:45:09 pm
content: Preview of the plans!https://drive.google.com/file/d/1eYKzebpiEG3X7Weq_XJPTM-tQYrioIFE/viewAnd it's on Youtube, prepare for the temptation to inflict self harm whilst watching.

author: JackJones
author_rank: Regular Contributor
timestamp: April 10, 2019, 12:59:40 pm
content: QuoteThe second to last sentence really sums it up!

author: madires
author_rank: Super Contributor
timestamp: April 10, 2019, 01:11:10 pm
content: Quote from: EEVblog on April 10, 2019, 12:08:16 pmThey've bought the FESA starter kit for just US$ 1990.FESA = Free Energy Scam Agency

author: Cyberdragon
author_rank: Super Contributor
timestamp: April 10, 2019, 02:25:58 pm
content: But...that's not free energy...it runs on gasoline! So are they promising free energy and giving you that?.Why couldn't they just do something like "begginers guide to off-grid power" then?

author: ebastler
author_rank: Super Contributor
timestamp: April 10, 2019, 06:45:20 pm
content: Quote from: EEVblog on April 10, 2019, 12:45:09 pmThat's a gasoline-powered generator, and nowhere does the document claim that it's anything else. No "free energy" claims to be found. You must have mixed that up with something else?

author: Domagoj T
author_rank: Frequent Contributor
timestamp: April 10, 2019, 06:45:30 pm
content: From the site:Quotebut:QuoteSomething tells me that the people running sites like these are the same ones that spam various sites with comments about them making thousands of $ per day by working just an hour or two per day from home.

author: Cyberdragon
author_rank: Super Contributor
timestamp: April 11, 2019, 02:13:40 pm
content: Quote from: Domagoj T on April 10, 2019, 06:45:30 pmYeah, probably by making scam calls to get card numbers.
AI PowerCube: The 360Watt 120Volt Perpetual Energy Generator - Page 1
Forum section: electronics / general

author: Kean
author_rank: Unknown
timestamp: April 03, 2019, 01:23:51 pm
content: Wasn't sure whether to post this one under Dodgy Technology or Crowd Funded Projectshttps://www.kickstarter.com/projects/aipowerbar/ai-powercube-the-360watt-120volt-perpetual-energy/

author: Cyberdragon
author_rank: Super Contributor
timestamp: April 03, 2019, 01:43:25 pm
content: It'll likely be gone by tomarrow, it's blatantly obvious it's a scam as he literally called it perpetual energy.

author: jmelson
author_rank: Super Contributor
timestamp: April 04, 2019, 07:51:09 pm
content: Quote from: Kean on April 03, 2019, 01:23:51 pmHmmm, they need to Copyright the design, NOT patent. Interesting! But, I guess if they write perpetual energy all over everything, even the PTO will get suspicious it might be a perpetual motion application, which somebody a long time ago said they should not accept.Jon

author: Deodand2014
author_rank: Regular Contributor
timestamp: April 08, 2019, 10:14:17 am
content: There is a video on the Detective Hacc youtube channel where he comments that the reason Kickstarter has rules is toprotect the companyfrom liability when stuff like this is complained about.For myself, I'm (a). Hoping this is a joke kickstarter. (b). Noting that nowhere in the material is there any explanation on how this thing is supposed to work.

author: Kean
author_rank: Unknown
timestamp: April 11, 2019, 08:07:52 am
content: Quote from: Cyberdragon on April 03, 2019, 01:43:25 pmTook almost a week, but it has been cancelled by the creator.Apaprently Kickstarter pressured him to remove the reward tiers that included his "generator" until he could provide more proof of them working.He implies that he will return...
Gearbest: best at being the worst - Page 1
Forum section: electronics / general

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 10, 2019, 11:59:43 pm
content: As if anyone would want to with all the complaints of missing packages and poor customer service...

author: MrMobodies
author_rank: Super Contributor
timestamp: February 11, 2019, 07:22:15 am
content: They geared him up with empty promised at best.QuoteOutrageous how they can take a review warning about those so called "energy savers" and use or alter parts of his video in a way that promotes the sale of them.I haven't seen their version of the energy saver video but it appears from what he saying that they are making it look like he is promoting them when he wasn't and he'd look like a fool apart from those that know him and have seen the original video.Isn't that defamation?

author: Migamix
author_rank: Newbie
timestamp: February 13, 2019, 02:59:25 am
content: FB and YT vids are down now.wonder how JYtech felt about it .i didn't want this to be my first post... oh well

author: bitwelder
author_rank: Super Contributor
timestamp: February 13, 2019, 11:36:27 am
content: @GreatScottLab on Twitter:"It is over! GearBest fixed their mistake. All ad videos are gone and I got paid. Better late than never."https://twitter.com/GreatScottLab/status/1095638892852715520

author: Matty272
author_rank: Contributor
timestamp: February 18, 2019, 01:23:08 pm
content: I wonder if they realised how much damage they were causing themselves?

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 19, 2019, 06:04:20 am
content: They're still the best at being the worst.

author: EEVblog
author_rank: Unknown
timestamp: February 19, 2019, 06:23:38 am
content: Quote from: bitwelder on February 13, 2019, 11:36:27 amI personally wouldn't have removed the video or have taken the money, let it remain as lesson to them.But I can understand if he wanted to do that.

author: bitwelder
author_rank: Super Contributor
timestamp: March 19, 2019, 08:21:36 am
content: Quotehttps://www.theregister.co.uk/2019/03/18/gearbest_data_breach_1_5m_customers_affected/
Cordless Showerhead - Page 1
Forum section: electronics / general

author: WackyGerman
author_rank: Regular Contributor
timestamp: March 08, 2019, 05:22:25 pm
content: That s a thing everybody is waiting forhttps://etel-tuning.eu/elektronik/132-schnurloser-duschkopf.html

author: Raj
author_rank: Frequent Contributor
timestamp: March 08, 2019, 05:47:49 pm
content: There's a gods amongst us.

author: Pluscrafter
author_rank: Regular Contributor
timestamp: March 08, 2019, 07:15:21 pm
content: and payment methodes. HitmanExpress and Mafia debentureThere are plenty of hilarious products there))Gesendet von meinem G8341 mit Tapatalk

author: KL27x
author_rank: Super Contributor
timestamp: March 08, 2019, 11:53:29 pm
content: Awesome victim."But where is the soda... comingfrom?""This world is getting crazy!"

author: bitseeker
author_rank: Super Contributor
timestamp: March 09, 2019, 01:38:17 am
content: This iJump cable is more trendy, though.https://etel-tuning.eu/elektronik/153-usb-startkabel.html

author: Deepak
author_rank: Regular Contributor
timestamp: March 09, 2019, 02:17:43 am
content: Bet this GPS has terrific battery lifehttps://etel-tuning.eu/navigation/72-navigationssystem.html

author: jeroen79
author_rank: Frequent Contributor
timestamp: March 14, 2019, 02:10:09 am
content: You'll have to wait some time though:Quote
Microsoft windows is a service - Page 1
Forum section: electronics / general

author: DimitriP
author_rank: Super Contributor
timestamp: March 13, 2019, 07:09:24 pm
content: Windows 10 , and it's bonehead updates deserve an entry in a section dedicated to dodgy technology.It now exists!

author: DimitriP
author_rank: Super Contributor
timestamp: March 13, 2019, 07:19:47 pm
content: ...and as chance would have it, I found this a few minutes ago today...I guess they are looking for a new person to be thrown under the bus....https://careers.microsoft.com/us/en/job/497108/Senior-Product-Manager
Satellite TV Cables - Page 1
Forum section: electronics / general

author: German_EE
author_rank: Super Contributor
timestamp: February 23, 2019, 06:55:08 pm
content: A local electronics retailer called Media Markt has three types of satellite TV cables available, 120dB 90dB and 80db, all three types are 1.8m long and come in plastic blister packs. The 120dB type is the most expensive and has gold plated F connectors but I can't see a difference between the thickness of all three types of cable.So, I grabbed a sales droid and asked him what the difference was between the 120dB, 9dB and 80dB versions."That's the amount the cable amplifies the satellite signal before it reaches your set top box".I left, without a cable, didn't need one anyway but I was curious.

author: tsman
author_rank: Frequent Contributor
timestamp: February 23, 2019, 07:06:20 pm
content: AFAIK the number is the shielding.

author: meeder
author_rank: Regular Contributor
timestamp: February 23, 2019, 07:17:36 pm
content: I have never seen coax cable being advertised with a dB rating.Just get a good quality 75 Ohm impedance coax cable and you will be alright.There are two types I have used a lot, Hirschmann Koka799 and Belden H125.

author: helius
author_rank: Super Contributor
timestamp: February 23, 2019, 07:24:11 pm
content: The rating is for "Shielding Effectiveness".https://ecfsapi.fcc.gov/file/6519817306.pdfThe dB of the shielding can only be measured with connectors and terminators in place, so it really doesn't belong on the cable. Belden doesn't advertise SE, they instead specify "quad shield 60/40" or the like.

author: madires
author_rank: Super Contributor
timestamp: February 23, 2019, 07:36:53 pm
content: Yep, that dB value specifies the attenuation of the shielding regarding exterior signals, e.g. from a DECT phone. 90 or 100dB are sufficient in most cases. 120 or even 135dB is overkill, unless you have to deal with microwave signals in the range of a few watts.

author: Richard Crowley
author_rank: Super Contributor
timestamp: February 23, 2019, 07:52:06 pm
content: Quote from: German_EE on February 23, 2019, 06:55:08 pmHa Ha. That's a good one. And that is why we call them "sales droids". Maybe they were flipping hamburgers last week and they are new at the job.Of course ordinary passive cables NEVER amplify signals of any kind. It takes some kind of active (i.e. powered) circuit to amplify a signal. Like the LNA in the satellite antenna or even perhaps an in-line booster amplifier.

author: JacobPilsen
author_rank: Regular Contributor
timestamp: February 24, 2019, 09:16:57 pm
content: Something like: "Kate forgot the cucumber" czech mem.youtube.com/watch?v=9C2fBNqorJE&t=136s

author: Gyro
author_rank: Super Contributor
timestamp: February 24, 2019, 10:03:06 pm
content: Quote from: German_EE on February 23, 2019, 06:55:08 pmSweet revenge for the '70s...

author: Divvi
author_rank: Contributor
timestamp: March 05, 2019, 09:44:39 pm
content: Quote from: German_EE on February 23, 2019, 06:55:08 pmGo back and ask him if you can connect two 80dB in series to get better performance!
Don't know what to think of this one ... - Page 1
Forum section: electronics / general

author: odessa
author_rank: Regular Contributor
timestamp: February 28, 2019, 02:15:43 pm
content: https://www.kickstarter.com/projects/homoelectricity/homo-electric?ref=discovery_category

author: Cyberdragon
author_rank: Super Contributor
timestamp: February 28, 2019, 03:45:59 pm
content: Woah WTF? Looks like a movie prop, with terrible animation. I suspect they'll be banned soon as another free energy scam.Look at the one sorry comment from some idiot.

author: SiliconWizard
author_rank: Super Contributor
timestamp: February 28, 2019, 07:15:09 pm
content: Quote

author: radiolistener
author_rank: Super Contributor
timestamp: February 28, 2019, 09:31:51 pm
content: Here is how it works:

author: JacobPilsen
author_rank: Regular Contributor
timestamp: March 01, 2019, 08:42:53 pm
content: Foods for humans are more expensive than electricity.The Martix generation...

author: Circlotron
author_rank: Super Contributor
timestamp: March 01, 2019, 09:59:07 pm
content: They say they have laboratories in central Africa. Maybe they should get a Nigerian prince to finance them.
Free Energy with Hyperloop Tech. - Finally a worthwhile indigogo scam  - Page 1
Forum section: electronics / general

author: beanflying
author_rank: Super Contributor
timestamp: February 24, 2019, 06:21:22 am
content: Time Thunderfoot put a stop to this scammer Prof. Mason and his ThermoDynamicshttps://youtu.be/hPM2vnV3SZM

author: EEVblog
author_rank: Unknown
timestamp: February 24, 2019, 07:56:56 am
content: I tried to debunk this but couldn't, so I backed it!
Tin foil hats for unborn babies! - Page 1
Forum section: electronics / general

author: joris
author_rank: Contributor
timestamp: February 19, 2019, 08:44:59 am
content: Ugh...https://www.noppies.com/en-en/noppies-radygo/This probably does more harm by causing stress than protecting against spooky radiation.Does anyone have a suggestion on how to calculate how much "radiation" you need to reach the fetus? How would you quantify the effectiveness of the shielding?

author: nsrmagazin
author_rank: Regular Contributor
timestamp: February 19, 2019, 01:28:16 pm
content: You have to specify the type, range, strength and radiate time?To protect yourself from radio waves you need a faradey's cage. Electro magnetic waves can not pass through metal. In practice its more complicated, but its still realized like this. Thats why if you have metal nets in your concrete walls, the wifi does not pass.

author: Cyberdragon
author_rank: Super Contributor
timestamp: February 20, 2019, 03:04:32 am
content: Wonder if they're also anti-vaxxers. XD Darwin...
Anti static spray - Page 1
Forum section: electronics / general

author: pamperchu
author_rank: Contributor
timestamp: January 30, 2019, 07:42:34 pm
content: Found this old can of anti static spray, it helps prevent computer memory damage! you can even spray it on you stuck up cat whose shedding hair all over the place.

author: Kean
author_rank: Unknown
timestamp: January 30, 2019, 08:17:18 pm
content: Don't know about that one, but anti-static sprays are certainly available from reputable suppliers and can be useful.Some are meant for use on carpet or restoring anti-stat matting.http://desco.descoindustries.com/DescoCatalog/Floor-Care-Maintenance/Floor-Care/Statfree-Spray-Buff/81050/Or for a static dissipative coatinghttps://www.mektronics.com.au/static-control/anti-static-chemicals-and-treatments/techspray-licron-crystal-esd-safe-coating.html

author: Cyberdragon
author_rank: Super Contributor
timestamp: January 30, 2019, 09:17:44 pm
content: It smells kind of like WD-40, whatever it is.

author: Raj
author_rank: Frequent Contributor
timestamp: January 30, 2019, 09:17:51 pm
content: Sounds like a conductive powder inside of a high resistance carrier... Ain't sure

author: Gyro
author_rank: Super Contributor
timestamp: January 30, 2019, 09:20:12 pm
content: Diluted fabric conditioner works just as well (that's probably what it is).

author: Cyberdragon
author_rank: Super Contributor
timestamp: January 30, 2019, 09:21:41 pm
content: It's a clear sticky liquid (or maybe just cause the one I found was old).Quote from: Gyro on January 30, 2019, 09:20:12 pmmight be...Unscented though, smells a bit rank.

author: helius
author_rank: Super Contributor
timestamp: January 30, 2019, 09:49:56 pm
content: The active ingredient in these sprays isditallow ammonium chloride, a quaternary ammonium compound (CAS 61789-80-8).The ESD sprays are different, they are modified acrylic lacquers.

author: Alexei.Polkhanov
author_rank: Frequent Contributor
timestamp: February 06, 2019, 07:55:47 am
content: Quote from: pamperchu on January 30, 2019, 07:42:34 pmI have seen girls use it a lot in theatre to deal with static on big skirts used in a play that make them look like tight spandex after some time. Spray that they use works really well, but brand is different. Have you tested it?

author: Halcyon
author_rank: Unknown
timestamp: February 07, 2019, 01:58:59 am
content: Quote from: Gyro on January 30, 2019, 09:20:12 pmYep, in the past I've used tap water with a few drops of dish washing detergent in a spray bottle. It works quite well.

author: maginnovision
author_rank: Super Contributor
timestamp: February 15, 2019, 07:18:32 pm
content: Used that sort of stuff to eliminate creaking from door seals.
Converting Wi-Fi signals to electricity with new 2-D materials - Page 1
Forum section: electronics / general

author: Technobabble_
author_rank: Regular Contributor
timestamp: January 31, 2019, 09:42:14 pm
content: This popped up on my feed today. Any thoughts on it?Article:http://news.mit.edu/2019/converting-wi-fi-signals-electricity-0128Actual paper:https://www.nature.com/articles/s41586-019-0892-1Meta: I'm somewhat pissed that the MIT article didn't link directly to the Nature paper.

author: timelessbeing
author_rank: Frequent Contributor
timestamp: January 31, 2019, 09:54:56 pm
content: so?

author: Daixiwen
author_rank: Frequent Contributor
timestamp: February 01, 2019, 09:04:02 am
content: I don't see why it wouldn't be possible. But the real question is would it be practical?40 microwatts to power a LED though... it would need to be a very small LED!The other problem I see for "small communicating devices" is that you can only use a fraction of those 40 microwatts to transmit a signal back. I'm not sure the transmission would be reliable. If you need more power you'd need a capacitor that gets charged when not transmitting, and that can deliver more juice when needed. But at that point it might be more practical and economical to just put there a small lithium cell.

author: Technobabble_
author_rank: Regular Contributor
timestamp: February 01, 2019, 02:26:00 pm
content: QuoteYour comment isn't helpful. What do you mean?

author: KaneTW
author_rank: Frequent Contributor
timestamp: February 01, 2019, 02:30:44 pm
content: Rectennas aren't new technology. Just, not very useful. 50 uW on a LED isn't going to be more than a few millicandela, so I'm not sure what's the point of that example. Maybe coupled with some sort of energy storage for devices that are on for a short while with long periods of rest.

author: timelessbeing
author_rank: Frequent Contributor
timestamp: February 01, 2019, 08:38:14 pm
content: Quote from: Technobabble_ on February 01, 2019, 02:26:00 pmI mean is there a particular reason you bring this up? RFID tags and proximity cards have been using RF energy for a decades. It's pretty common stuff.
Someone explains: "Why current isn't consumed" - Page 1
Forum section: electronics / general

author: hwj-d
author_rank: Frequent Contributor
timestamp: January 30, 2019, 10:56:00 pm
content: and gets mercilessly caught, without knowledge of ohmic law, between the meanings of alternating ac, current, frequency, power, resistance and voltage.Unfortunately only in German...

author: hwj-d
author_rank: Frequent Contributor
timestamp: January 30, 2019, 11:42:45 pm
content: I understand what he actually means. An accusation of the ineffectiveness of homemade alternative energy supplys as feeds into the big power grid, but also of all wind turbines, from the point of view of an overall energy bill. But he explains it as a public mental mess using a mess of verbal gobbledygook by himself, what makes it so funny.
Loosing respect?  Elon musk is now the gift that keeps on giving. Flying Teslas - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: January 28, 2019, 01:02:34 am
content: (Couldn't think of anything to say...)

author: cdev
author_rank: Super Contributor
timestamp: January 28, 2019, 01:18:59 am
content: Can't you tell he's joking?

author: ataradov
author_rank: Super Contributor
timestamp: January 28, 2019, 01:21:46 am
content: Yeah, those debunkers really need to get a grip. Although it works out for both sides. Musk gets dome publicity, debunkers get views and a circle jerk of approval.

author: Bud
author_rank: Super Contributor
timestamp: January 28, 2019, 05:50:37 am
content: I predict Musk will end up in a mental treatment facility. Just look how's he talking, he is getting there.

author: BrianHG
author_rank: Super Contributor
timestamp: January 28, 2019, 06:39:52 am
content: I like how he appears on the talk shows and fully describes his car's addition with specifications exactly like those who believe their perpetual motions machines really work. He's doing his narcotics big time...

author: beanflying
author_rank: Super Contributor
timestamp: January 28, 2019, 07:14:36 am
content: The obvious thing he is doing is propping up his share price by opening his mouth/keyboard on a regular basis just to keep his name out there.The biggest circle jerk going on is Musks blinded worshipful followers 'knowing' he is right in all things and should never be questioned or scrutinised by lesser mortals.The few that look at some nuts and bolts science behind the suspect claims do way more than the average media in terms of due diligence which is none in most cases because Musk = Ratings = Profit.That said time for TF to find a new toy for a bit there is only so many times Solar Roadways, Musk, Sarkeesian or Creation need to be bashed in rotation they are all to easy a target when you use Science and Logic against them

author: sleemanj
author_rank: Super Contributor
timestamp: January 28, 2019, 07:55:56 am
content: Elon Musk == Howard Hughes of the modern era.

author: bd139
author_rank: Super Contributor
timestamp: January 28, 2019, 08:38:30 am
content: https://youtu.be/iUBduT3Qh6M
HIFI Audio Dedicated Fuse Nano Technology - Page 1
Forum section: electronics / general

author: clucas
author_rank: Contributor
timestamp: January 21, 2019, 02:37:02 am
content: only US$35.89 for 4 available at Alibaba :-

author: Kean
author_rank: Unknown
timestamp: January 21, 2019, 03:05:30 am
content: Don't know what that gibberish means...But it clearly can't be any good - it is way too cheap!

author: boB
author_rank: Frequent Contributor
timestamp: January 21, 2019, 03:41:07 am
content: Just looked for the nano technology fuses and found these audio fuses.More expensive and more gibberish !https://positive-feedback.com/Issue61/audiomagic_nano.htm

author: SiliconWizard
author_rank: Super Contributor
timestamp: January 21, 2019, 04:49:33 pm
content: Nano-alloy... sounds nice.But no graphene? Come on!

author: clucas
author_rank: Contributor
timestamp: January 22, 2019, 02:58:30 am
content: Quote from: Kean on January 21, 2019, 03:05:30 ammaybe it's because the 24K gold plated multi layer cap is only on one end
Device that triples phone performance and extends battery life. - Page 1
Forum section: electronics / general

author: Ice-Tea
author_rank: Super Contributor
timestamp: December 23, 2018, 09:14:43 am
content: https://bit.ly/2V8lrAD

author: nali
author_rank: Frequent Contributor
timestamp: December 23, 2018, 09:27:30 am
content: This says it all really :-QuoteandQuote

author: Stray Electron
author_rank: Super Contributor
timestamp: December 23, 2018, 03:57:05 pm
content: This website looks like a good addition to my Hosts file!

author: Ice-Tea
author_rank: Super Contributor
timestamp: December 23, 2018, 06:13:48 pm
content: Quote from: nali on December 23, 2018, 09:27:30 amStill entertaining to trash them, though

author: Jeroen3
author_rank: Super Contributor
timestamp: January 19, 2019, 10:42:47 pm
content: You know you've hit jackpot whenQuote
Dodgy Multimeter - Page 1
Forum section: electronics / general

author: SyazTYT
author_rank: Newbie
timestamp: January 18, 2019, 06:56:34 am
content: So I found this multimeter, it's made from BSIDE (from india?) but it looks rugged though. I have the same exact multimeter but I can't do a teardown of it because I always thought that I'm gonna break it...And its also 11$ on AliexpressBSIDE ADM62 True RMShttps://www.aliexpress.com/item/BSIDE-ADM62-True-RMS-Digital-Multimeter-Auto-Range-DMM-Dual-Slot-TRMS-Voltmeter-Ammeter-Ohmmeter-Diode/32883337539.html?spm=2114.search0604.0.0.65436969lrQNxb

author: Simon
author_rank: Unknown
timestamp: January 18, 2019, 07:20:06 am
content: Please do not double post, it will get you banned quite quickly as is really annoys everyone.