hybridfree/eevblog-posts huggingface dataset:
YouTubers have hit a critical mass of low, for ideas - Page 1
Forum section: electronics / general

author: eti
author_rank: Super Contributor
timestamp: February 04, 2020, 02:26:25 am
content: I can't work out whether he actually thinks this is a "good idea" or just chancing his arm for views (like most YouTubers... a truly, clearly stupid idea.)Seriously, have ALL the good ideas reached saturation point, so we're now left with the sensationalist, idiot videos?That being said, there's no shortage of Dilberts with little sense, who will buy one because "I fort it looked kewl"Sheesh...https://youtu.be/FZ0N_0YRZ3Q

author: tooki
author_rank: Super Contributor
timestamp: February 05, 2020, 06:39:31 pm
content: Ummm... it’s obvious he doesn’t actually think it’s a good idea. It’s just a “let’s see if it can be done” thing, without implying in any way that it’s apracticalsolution.As for it not working, I could have told him that before he built it. Having once, as a teenager, built a campfire so ferocious that a) we couldn’t get within 2 meters of its periphery because of radiant heat, and b) not only did not go out when it suddenly began to rain cats and dogs, but in fact did manage to prevent raindrops from hitting the center of the fire, it demonstrated that the amount of instantaneous heat output required to vaporize raindrops midflight is absolutely enormous. That dinky little flame he’s using isn’t even close to big enough.
Contacting EEVBlog Store - Page 1
Forum section: electronics / general

author: robmawston
author_rank: Newbie
timestamp: February 04, 2020, 12:02:14 am
content: Hi,I've been trying for a month or so to get in contact with the EEVBlog store, email, twitter etc. but no response.Can anyone here email me via the forum some contact details? I'm inquiring about an order from December.ThanksRob

author: tautech
author_rank: Super Contributor
timestamp: February 04, 2020, 12:19:47 am
content: Welcome to the forum.Dave's had some breaks away with family and I think he's away again so I'll report your post so the moderators get a message to him.
Animated billboards of 1930s - Page 1
Forum section: electronics / general

author: Axk
author_rank: Regular Contributor
timestamp: February 02, 2020, 09:19:24 pm
content: Watching a 1937 film of New York and they have a lot of scrolling text billboards there (these are around 21:00 in this video:https://youtu.be/ZpXnEvW0XD0?t=1265)I wonder what was the technology behind these? Rear projection?Trying to google but haven't found anything so far... Need proper keywords.

author: rfeecs
author_rank: Frequent Contributor
timestamp: February 02, 2020, 09:27:04 pm
content: You might look up "news ticker".There is a famous one in Times Square, since the 1920's:https://en.wikipedia.org/wiki/One_Times_SquareQuote

author: Axk
author_rank: Regular Contributor
timestamp: February 02, 2020, 09:37:56 pm
content: These don't appear to be news, look like commercials (Ford and Chverolet)I saw that, but these appear to be different.The Zipper was on a lower floor as far as I understand and the separate bulbs were distinguishable.These ones are higher up.

author: nctnico
author_rank: Super Contributor
timestamp: February 02, 2020, 09:45:48 pm
content: The technology is already discussed in a recent thread.

author: Axk
author_rank: Regular Contributor
timestamp: February 02, 2020, 09:47:40 pm
content: Do you have a link to that thread?

author: ebastler
author_rank: Super Contributor
timestamp: February 03, 2020, 08:57:00 pm
content: https://www.eevblog.com/forum/chat/when-was-the-first-electronic-bitmap-sign-invented/
List of non-YouTube channels for EE/Tech/Nerd content... - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: December 29, 2019, 08:55:01 am
content: In response to the discussion inthis thread, I've decided to compile a list of EE/tech/nerd related content creators who regularly* upload to services other than YouTube.I (or Dave/the mods) will update this main post as more get discovered. (Feel free to PM me or just post in this thread).Don't forget, you can also follow these content creators on your smartphone or tablet device by downloading theLBRYor Vimeo applications.* Please limit contributions to official channels only and to those who upload the vast majority (if not all) their content to alternative providers such as LBRY, Vimeo, The Internet Archive or their own website. This thread is about promoting other sources of our much-loved content, that is not YouTube.- THE LIST -(In alphabetical order)3Blue1Brown:https://lbry.tv/@3Blue1Brown:bBitBoy Crypto:https://lbry.tv/@BitBoyCrypto:8Diode Zone:https://diode.zone/EEVblog:https://lbry.tv/@eevblog:7

author: wilfred
author_rank: Super Contributor
timestamp: December 29, 2019, 09:07:17 am
content: Why can't we do what we do on Youtube and go there and search? If a list here on the forum get too big it just makes it easier to search on the platform in the first place.I remember a few people made a bit of effort to do that for YT channels some years ago. Why not just add the alternative link to that. It might at least mean only one list to keep updated.Also. Although I can't speak for what reasons others might choose a non-YT alternative, I am uninterested in rejecting YT because they canned a few crypto vids and at least one of Rossman's cat videos over christmas. If it becomes convenient for me then I might.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: December 29, 2019, 09:12:14 am
content: https://lbry.tv/@BitBoyCrypto:8

author: Halcyon
author_rank: Unknown
timestamp: December 29, 2019, 09:19:37 am
content: Quote from: wilfred on December 29, 2019, 09:07:17 amFeel free. Some people prefer a link.

author: tautech
author_rank: Super Contributor
timestamp: December 29, 2019, 09:49:32 am
content: You might like to tie your discoveries into this thread:https://www.eevblog.com/forum/other-blog-specific/a/

author: artag
author_rank: Super Contributor
timestamp: February 02, 2020, 08:59:05 pm
content: I've enjoyed a lot of Rossman vidoes but he's been so busy ranting recently about Apple (justifiably, I agree) that I haven't seen so much recently.But I watched some of this lady today and thought her pretty interesting

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 03, 2020, 12:24:36 am
content: A lot of electronics content on Diode Zone:https://diode.zone/
Chemi-con caps made in China? - Page 1
Forum section: electronics / general

author: Russ314
author_rank: Contributor
timestamp: February 02, 2020, 11:14:05 pm
content: So I'm re-capping an amplifier, and, like many of you (I'm presuming), I used Digikey's parametric search to strip away anything that wasn't Japanese. In other words, I just left the "-cons" (Ruby, Nichi, Chemi...).After looking at the invoice, however, it appears that one of the Chemi-cons is from China. Is this correct?! I ordered two different Chemi-con caps, both from the same series (KY), and both almost identically sized (3900uF/16v and 4700uF/25v). It doesn't make sense to me that one is from China and the other is from Japan.This is particularly vexing for two reasons:1. Digikey doesn't list the COO on the product page; you ONLY find out where the part is from after receiving the invoice.2. My country is run by idiots, and therefore, Chinese parts cost more (tariffs and whatnot).

author: Tomorokoshi
author_rank: Super Contributor
timestamp: February 03, 2020, 12:14:08 am
content: Many manufacturers have factories in various locations. In one instance I had to track down some issues that included researching the supply chain of a particular Panasonic capacitor. I found out that over the years the factory location changed. In this case there were not any problems with the Panasonics made in China. Across several samples spanning 10 years, including NOS parts, LCR meter and frequency sweeps didn't find much difference in either capacitance or dissipation.I expect your parts should be fine, given that they come through an authorized distributor of a well-regarded manufacturer.
Storm Ciara power cuts - Page 1
Forum section: electronics / general

author: MrMobodies
author_rank: Super Contributor
timestamp: February 09, 2020, 11:44:45 pm
content: I just had a powercut at about 11pm and when I looked at the UK Power Networks fault map there is so many of them in only the eastern side of England.https://ukpn.ukpowernetworks.co.uk/fault-map/Just noticed that they only serve South East England.

author: fcb
author_rank: Super Contributor
timestamp: February 10, 2020, 12:56:47 am
content: We had a bunch (near Ipswich) - had to put the 3D printer on a UPS. They didn’t last long.
Interesting Russian slang in AliExpress listing of soldering iron cleaner - Page 1
Forum section: electronics / general

author: I wanted a rude username
author_rank: Frequent Contributor
timestamp: February 01, 2020, 10:58:11 am
content: Could any Russophone please help me understand what's going on inthis AliExpress soldering iron cleaner listing?

author: wraper
author_rank: Unknown
timestamp: February 01, 2020, 11:06:57 am
content: Quote from: I wanted a rude username on February 01, 2020, 10:58:11 amWell, it's about Russians, Ukrainians, Turks and it's not only obscene but also racist and homophobic. IMHO it's not appropriate to post translation here.

author: magic
author_rank: Super Contributor
timestamp: February 01, 2020, 11:10:42 am
content: Language barrier is a wonderful thing

author: I wanted a rude username
author_rank: Frequent Contributor
timestamp: February 01, 2020, 11:39:16 am
content: Quote from: wraper on February 01, 2020, 11:06:57 amI was hoping for some kind of lesson in multicultural slang, not so much a translation. But maybe there is a littletoomuch culture here ...Quote from: magic on February 01, 2020, 11:10:42 amJust switched the site language to Russian and ran the original through both Google and DeepL. Yep, the best machine translation of 2020 can't penetrate that barrier. The meaning is lost.

author: aix
author_rank: Regular Contributor
timestamp: February 01, 2020, 01:36:56 pm
content: Quote from: I wanted a rude username on February 01, 2020, 11:39:16 amThere is no meaning. It's just a stream of random xenophobic and homophobic abuse.

author: magic
author_rank: Super Contributor
timestamp: February 01, 2020, 02:03:28 pm
content: Of course it's meaningless if you don't know the meaningI haven't really read the original (BTW, there is a checkbox to disable translation of feedback, you don't need to change the site language) but just looking at those half-assed machine translations I can say that it has to be some street slang or Internet memes, of which I admittedly know nothing

author: wraper
author_rank: Unknown
timestamp: February 01, 2020, 03:13:08 pm
content: With omitting racial slur the gist of it is that cleans anus better than soldering iron tips.
GoPro upgrade suggestions. Hero 2 --> ? - Page 1
Forum section: electronics / general

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: January 31, 2020, 08:10:10 am
content: I've come home this afternoon only to discover that we are having an emergency ski trip. I have a Hero 2 with 3 batteries in dubious condition. Camera sucks if I'm honest. Would like a nicer, newer camera but have no idea which model or even a different brand. Stuck in a bit of a time warp since I bought the old one.What would you buy?After my camera model came out, the wrist remote start/stop thingy was released. So have never used one. I want to know if they are any good as I'm used to pressing the on switch on the camera for three seconds (auto record), but I've seen guys push a button on the wrist device. I heard reports that the connection is flakey. I hate the push button because I never know if the camera is turned on or off.I used to get 2.5 hours record time per battery. I always found this too short and inconvenient. Are new models better? What about a usb cable to a powerbank in the shirt pocket? Waterproof camera enclosure with a cable connected?Not sure if I'd want to connect it to my Android phone. Would prefer if the camera worked separately, actually. Just want to shoot 1080p >30 fps or even 4K if the files aren't enormous. Possibly some stills.

author: Zucca
author_rank: Unknown
timestamp: January 31, 2020, 09:22:20 am
content: There are crazy guys that wants the last GoPro and sell the old one....my general suggestions is: if N is the current GoPro, get the N-1 used.Best bang for the buck.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: January 31, 2020, 09:47:50 am
content: Quote from: Zucca on January 31, 2020, 09:22:20 amThat's a great idea. Thanks!I might know somebody who always needs an excuse to buy the latest and greatest.
Regarding 3G/4G hotspot vs. T-mobile issue - Page 1
Forum section: electronics / general

author: Martin F
author_rank: Regular Contributor
timestamp: January 08, 2020, 07:11:37 pm
content: Hi all,We're trying to help support some end users that utilize below unlocked 3G/4G hotspot with a T mobile SIM card:https://www.alibaba.com/product-detail/Wireless-usb-router-with-dual-sim_62410461672.html?spm=a2700.12243863.0.0.5d773e5fUgsjiZThe users are unable to get it to work, despite trying different APNs and settings. Do some of you have experience with this type of thing, i.e. a sourced hotspot from China being used in the US? And specifically can some of you spot some issues in regards to e.g. frequency bands or similar that would explain why the T mobile user has issues?The bands look OK to me and the same T mobile SIM works just fine when the end user plugs it into his phone - but in the hotspot it doesn't work. We've had no issues with the hotspot in Europe markets, so we're unsure what might be the case.Any suggestions on what to try out would be appreciated!

author: Lord of nothing
author_rank: Super Contributor
timestamp: January 09, 2020, 04:00:18 pm
content: I guess in the US the Look Up the ID of the Device where you put the Simcard in.If its in there Mind the Wrong the refuse to Register it.Here in Europe we have mostly 2 different Contracts:1) Voice (with SMS, Data)2) Data "only"But here the Operator (by Law?) dont Care where you use the Simcard who.In the US (and Canada?) its maybe different. A "Data" can only use in a Modem where a "Voice" can use only in a Phone.

author: bw2341
author_rank: Regular Contributor
timestamp: January 10, 2020, 07:04:40 pm
content: From the Alibaba page, it looks like the working frequency bands are grouped into five different regions. I suspect that there are five different versions of this product, each tailored to a specific region.Check your sales receipt to see if a particular version is specified. If not, they may have simply used your mailing address to select the appropriate region. Contact the seller again for clarification.The last time I was searching for a cheap USB 4G stick on eBay, I found that most of them only support a few bands. This meant that a cheap foreign market 4G stick would be useless to me. I guess cheap 4G device manufacturers can’t afford to support the twenty or so bands that an iPhone can.Even iPhones have region specific models. This means that an iPhone can roam, but to get the best speeds and the full choice of mobile carriers, you still need to buy the correct region specific model.

author: Martin F
author_rank: Regular Contributor
timestamp: January 29, 2020, 09:03:07 pm
content: I tried reviewing all the USB 3G/4G unlocked hotspots on Amazon US that I could find, but it seems like none have consistent success with AT&T and T mobile based on the reviews. It's surprising to me that it is so difficult to find a USB WiFi router with good, broad coverage in the US.If anyone has had success with a specific unlocked USB hotspot in the US, we'd be really happy to learn.Best,Martin
Wher to get electronic supplies in Sydney - Page 1
Forum section: electronics / general

author: Kenneth
author_rank: Newbie
timestamp: January 28, 2020, 11:05:57 pm
content: HiI need to get some 140x140 DC fans today in Sydney.Anyone have a suggestion on someone who has this in stock?Regards,Kenneth

author: Brumby
author_rank: Unknown
timestamp: January 28, 2020, 11:12:21 pm
content: I see some listed with RS Components in 12v, 24v and 48v. Don't know if they have them in stock, but if they do, you can pick them up over the counter from Smithfield.https://au.rs-online.com/web/c/hvac-fans-thermal-management/fans/axial-fans/?applied-dimensions=4293765342,4291561493A bit on the pricey side for my taste, though.

author: PTR_1275
author_rank: Frequent Contributor
timestamp: January 28, 2020, 11:19:46 pm
content: What quantity?140mm fans are quite common in computers, so computer shops should have them.120mm is more common for electronics, so that’s when Jaycar / Altronics type stores are normally better, although the pickings are slim so don’t be too pedantic.If you can wait a week, element14, rs, mouser, Digi-Key

author: Whales
author_rank: Super Contributor
timestamp: January 29, 2020, 01:26:08 am
content: 240VAC, 48VDC, 24VDC or 12VDC?For 240VAC:Bunnings (website is useless! Has tiny fraction of stock) or an electrician's wholesaler that doesn't mind members of the public buying one-offs, egArncliffe Babylonin Tempe (again useless website, visit in person or call them).For 48VDC, 24VDC and 12VDC:Wagner is a bit pricey for fansbut their "Ceradyne" units claim300,000 hourlifetimes. Not as quiet as computer fans, the last one I picked up had coil clicks when rotating even at slow speeds.For 12VDC: Any computer store, eg theMSYchain.Staticiceis a gateway to other stores so it might help you. Don't buy a cheap one if you want it to last.

author: Kenneth
author_rank: Newbie
timestamp: January 29, 2020, 09:28:49 pm
content: Thanks a lot for all the replies, we where able to get some good fans from RS so now our equipment is able to handle the Aussi heat.Cheers,Kenneth
Dave got a mention in the new AoE:X book - Page 1
Forum section: electronics / general

author: benst
author_rank: Regular Contributor
timestamp: January 22, 2020, 01:40:22 pm
content: Dave is mentioned with one of his standard quotes: “don’t turn it on, take it apart!" in the new Art of Electronics book.See:https://x.artofelectronics.net/wp-content/uploads/2019/11/9xp13_fake-charger.pdfBen

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: January 27, 2020, 11:21:41 am
content: And also on page 403, "The Myth of PWM"

author: borjam
author_rank: Unknown
timestamp: January 27, 2020, 11:53:48 am
content: Mmmmm looks like it's going to be an entertaining reading!!
IP67 DB9 (D-sub9) Male to Female connector? - Page 1
Forum section: electronics / general

author: Martin F
author_rank: Regular Contributor
timestamp: February 02, 2020, 07:23:09 pm
content: Hi all,We're looking to create an IP67 enclosure box for our product.For this purpose, we would like to insert our existing product inside the IP67 and connect the two product DB9 female connectors to two IP67 DB9 male connectors in the box - see attached Enclosure.png illustration.To do so, we're looking for something ala below, but waterproof:https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwjE08ixyrPnAhXkmIsKHdkIC0cQjRx6BAgBEAQ&url=https%3A%2F%2Fwww.ebay.com%2Fitm%2F10Pcs-RS232-Serial-Port-9-Pin-DB9-Connector-Female-Male-Solder-Soldering-Plug-%2F372910623763&psig=AOvVaw2EUQIE_WWJn5s8pxiGJeoK&ust=1580757401104770Our challenges is that we're unable to find any IP67 "straight through" DB9 adapters out there. Anyone who has any suggestions/ideas for this?Any suggestions for this?Best,Martin

author: Tomorokoshi
author_rank: Super Contributor
timestamp: February 02, 2020, 07:42:16 pm
content: If you can see it, this search on Digi-Key USA gives a fair number of results:https://www.digikey.com/products/en/connectors-interconnects/d-sub-connectors/439?k=IP67&k=&pkeyword=IP67&sv=0&pv69=383652&sf=1&FV=88%7C295538%2C589%7C405002%2C589%7C405010%2C-8%7C439%2C1989%7C0&quantity=&ColumnSort=0&page=1&pageSize=25

author: TassiloH
author_rank: Regular Contributor
timestamp: February 02, 2020, 07:45:45 pm
content: This here from CONEC:https://www.reichelt.de/d-sub-adapter-9-pin-plug-socket-ip67-d-sub-ad-09-ip-p113989.html?&nbc=1

author: Tomorokoshi
author_rank: Super Contributor
timestamp: February 02, 2020, 07:56:31 pm
content: Manufacturer's pages:http://www.assmann-wsw.com/us/en/products/connectors/water-proof-parts/detail/1861728/http://www.assmann-wsw.com/us/en/products/connectors/water-proof-parts/detail/1861692/https://www.conec.com/catalog/en/ip67-d-sub-connectors/ip67-d-sub-standard-high-density.html?a0003=1700&a0006=1869https://www.edac.net/products/waterproof/28https://b2b.harting.com/ebusiness/en_us/Interface-connectors-D-Sub-Subminiature-D-connectors-Cable-connector-Connector-IP67/389310?search=true&page=0https://www.molex.com/molex/search/deepSearch?pQuery=q%253D*%253A*%2540fq%253Dcollection%253Aimpulse%2540fq%253Dcollection%253Aimpulse%2540fq%253Dcollection%253Aimpulse%2540fq%253Dcategory%253A%2522D-Sub%252BProducts%2522%2540fq%253Dproductcategory%253A%2522D-Sub%252BConnector%2522%2540fq%253Dtype%253A%2522Standard%252BDensity%2522%2540fq%253Diprating%253A%2522IP67%2522%2540fq%253Dorientation%253A%2522Straight%2522&currentQuery=circuitsloaded%3A9&origin=_l1stv13w

author: Martin F
author_rank: Regular Contributor
timestamp: February 02, 2020, 08:05:15 pm
content: Thanks a lot!The one from TassiloH looks quite spot on as it's got "plug & play" connectors on both sides, rather than e.g. a connector to fit on a PCB. If you know of other connectors of this type, I'd be happy to see them as well.Thanks again.Best,Martin
USB-to-Mini-USB - need a version with extra compact connectors - Page 1
Forum section: electronics / general

author: Martin F
author_rank: Regular Contributor
timestamp: January 27, 2020, 07:23:44 am
content: Hi all,I'm looking for a USB to mini USB adapter cable, similar to attached picture. The length should be rather short (~10 cm):https://www.avxperten.dk/billeder/usb-stick-bilradio-big.jpgThe challenge I'm having is that I need very short connectors on the regular USB connector, rather than the typical rather long connectors. Have you seen such variants anywhere?Thank you,Martin

author: Zbig
author_rank: Frequent Contributor
timestamp: January 27, 2020, 08:47:29 am
content: The thing from the link you show shouldn’t exist and I’d say it’s a good thing you can’t find it as its not USB compliant and violates the standard in more than one way. It seems to be meant to connect two USBdevices(i.e. not hosts) together which doesn’t make sense. There’s a regularMini-AMini-B plug on one end. That is an upstream port which is meant solely for USB devices for connecting them to the host. It doesn’t look like a Mini-A plug that’s meant to go into Mini-AB socket that supports USB On-The-Go which could be found on devices that could assume the role of either a USB device or host. And there you have a USB-A-socket-on-a-cable which also isn’t permitted by the standard but, more importantly, doesn’t make much sense, either, as it is a downstream port (meant to be installed in a USB host).TL;DR: If you have a device that actually requires that nonsense, toss it in the bin as it’s clearly been made by someone with no clue or any regard to standards whatsoever. If you’re thinking of designing some solution of your own using this, you should take a step back and do some reading on the USB ecosystem and its (admittedly a bit convoluted) basics.
HP printers internal data protocol (between the printer's own PCBs/blocks) - Page 1
Forum section: electronics / general

author: RoGeorge
author_rank: Super Contributor
timestamp: January 23, 2020, 08:27:20 pm
content: Is there any known protocol, or known practices, in data transfers between various blocks of a printer, especially in HP printers?For example, a big HP office printer/photo-copier have its blocks spread all over the printer, sometimes at long distance. The motherboard, the display, the keyboard, the scanner or other parts, all need to talk, and some are very high speed. I doubt they re-invent the wheel for each new model of a printer, so how is the data transfers usually implemented internally?Are there any chances to reuse an entire block from a big HP printer, for example, the touchscreen/keyboard, or the CCD/scanner (or maybe something else) as a standalone module for other projects?

author: eugenenine
author_rank: Frequent Contributor
timestamp: January 23, 2020, 09:42:53 pm
content: A couple I pulled apart have been USB just with smaller connectors. These were smaller boards such as the card reader on a photo printer.

author: RoGeorge
author_rank: Super Contributor
timestamp: January 23, 2020, 11:03:06 pm
content: For some reason I didn't check if it was USB while I was still having access to the working printer. Now I have only the touch screen and a keypad panel from some other smaller HP smaller printer.Will look at the connectors and see if it could be a USB hidden there, thank you!If it's USB, that would be great and awful at the same time, because then I will need USB drivers in order to use them somewhere else.

author: eugenenine
author_rank: Frequent Contributor
timestamp: January 24, 2020, 02:04:19 am
content: The couple I tore apart had 5 and 10 pin plugs, for power, ground, D+, D- and shield.Only need drivers for Windows, use a decent OS and they usually work.

author: German_EE
author_rank: Super Contributor
timestamp: January 26, 2020, 04:27:53 pm
content: USB within devices is more common than you think, maybe the attitude of the manufacturers is something similar to the phrase 'why re invent the wheel'. Some time ago I stripped down a Compaq laptop for spares and both the keyboard and the touchpad used a USB interface but with a different connector.Many standard microcontrollers have USB, SPI and I2C built in so these would be the first interfaces I would check for.
Are color trans-reflective LCD displays getting any better? - Page 1
Forum section: electronics / general

author: e100
author_rank: Frequent Contributor
timestamp: January 26, 2020, 02:15:07 pm
content: Based on Youtube videos of recently released smartwatches, daylight readable displays seem to be getting better, but that could just be an illusion due to the way Youtube compresses videos.So are they actually getting better or are things pretty much static regarding contrast (important) and color rendering (less important) for wrist sized displays?
Where the Factories Shop - Chinese Industrial Markets - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: January 25, 2020, 06:56:49 pm
content: Interesting video on factory parts suppliers in Shenzhen.

author: SeanB
author_rank: Super Contributor
timestamp: January 25, 2020, 07:31:36 pm
content: Just watched it, and yes a very interesting place. I sort of recognised around 10% of the stuff there.

author: VK3DRB
author_rank: Super Contributor
timestamp: January 26, 2020, 12:36:39 pm
content: Good video. That place alone leaves today's Akihabara and Nihonbashi to shame.
Missing "new" link on thread listings - Page 1
Forum section: electronics / general

author: spudboy488
author_rank: Regular Contributor
timestamp: January 24, 2020, 12:54:57 pm
content: A few days ago, the "new" links to jump to new posts on a thread disappeared. The main page still shows which subs have new posts and the thread listing in the subs still show the last post date in bold so it knows the last time I marked everything as read.I am using Chrome. I did just check using Edge and they show up.

author: rdl
author_rank: Super Contributor
timestamp: January 24, 2020, 02:04:03 pm
content: If you're using some kind of ad blocker it could be caused by that. Several people had a similar problem recently.Missing Forum Icons using uBlock Origin

author: spudboy488
author_rank: Regular Contributor
timestamp: January 24, 2020, 05:40:15 pm
content: That's the stuff!
How are THT resistors painted? - Page 1
Forum section: electronics / general

author: fx991ex
author_rank: Contributor
timestamp: January 26, 2020, 02:39:58 pm
content: Is anyone familiar with the process of painting a resistor? How do they apply the beige coating only to the resistor body without also painting the legs? I am sure they are not masking the legs and doing the dipping.It would also be interesting to know how the color bands are painted on.I have been looking for factory videos but unfortunately couldn't find any.

author: tooki
author_rank: Super Contributor
timestamp: January 26, 2020, 03:15:11 pm
content: I have wondered the same thing, but never bothered to look into it. I’m curious as to the answer!

author: SeanB
author_rank: Super Contributor
timestamp: January 26, 2020, 04:02:36 pm
content: How about these, just a quick search away.Basically you dip the resistor body in a pool of paint to get the full body coat, dry it with heat, and then to get the bands on you use washers running on the top of a bath of pigment to transfer the bands across to the resistor, dry again with heat and then tin the lead ends to finish the product.

author: German_EE
author_rank: Super Contributor
timestamp: January 26, 2020, 04:10:24 pm
content: You mean it's not done by nude virgins working by moonlight?How disappointing!

author: tooki
author_rank: Super Contributor
timestamp: January 27, 2020, 05:38:46 am
content: Quote from: SeanB on January 26, 2020, 04:02:36 pmThat video doesn’t show anything. It answers literallynoneof the OP’s questions.

author: dietert1
author_rank: Super Contributor
timestamp: January 27, 2020, 09:11:49 am
content: Maybe the resistors are kept rotating, which isn't easy to see in the video. This way a coating can be applied in a bath while keeping the wires clean. I'd guess making the color rings is by rotating the resistors, too.We make small processor modules with gold plated pins (something like hybrids that fit into DIL sockets) and coating is hand work still after 12 thousand pieces.Regards, Dieter

author: mariush
author_rank: Super Contributor
timestamp: January 27, 2020, 10:24:16 am
content: I imagined they're painted like when you're using a soldering fountain or like a chocolate fountain (pouring paint over the resistor which spins as it's moved under the paint "waterfall"For all I know the bands can be made as if you drag a marker / felt tip pen over the surface as the resistor is rotated
Most useful table - Page 1
Forum section: electronics / general

author: Daixiwen
author_rank: Frequent Contributor
timestamp: January 23, 2020, 01:08:08 pm
content: I've been reading a lot of technical documentation from Microsemi over the last few days and I have to say this is the most useful table I've read in any documentation for a while.At least it doesn't contradict the text so I guess I should be thankful

author: edy
author_rank: Super Contributor
timestamp: January 23, 2020, 05:41:56 pm
content: I found the same breath-of-fresh-air utility from this incredibly useful graph from an article that I also haven't see done in a while:
HELP - Page 1
Forum section: electronics / general

author: cossy350
author_rank: Newbie
timestamp: January 21, 2020, 08:30:28 pm
content: Hi everyone I wonder if you could help me outI have a low amp clamp which are used for parasitic drains on a battery for automotive use but obviously it is very sensitive and it is picking up interference all around I was wondering if there's any type of tape I can put on the outside of the clamp to stop interference or is there anything else I can do to try and stop as much outside interference as possible so when I put it over the cable I am just getting a true Reading from the cable and not interference everywhere elseWhat I was thinking of doing as you can see from the picture on the black clamps is putting some sort of shielding tape on the outside but I don't know which is the best stuff to use if anyone can give me any ideas it would be much appreciated thank you

author: Zucca
author_rank: Unknown
timestamp: January 22, 2020, 08:24:46 am
content: Snap-on is fantastic for mechanical tool. Absolutely my favorite one.For EE stuff you should go with Fluke or similar.If the noise is too high how about to wrap the cable arounf the clamp twice? You will double the signal reading and the noise will be the same.Example: current flowing 1A, reading with double wrapped cable 2A.Of course if you wrap it up n times you will have n times the reading.That said are you sure the current itself is not stable?
Youtube uploads of your content - Page 1
Forum section: electronics / general

author: paulca
author_rank: Super Contributor
timestamp: January 18, 2020, 04:25:17 pm
content: So have had a video of mine get picked up by "The Algorithm" and so it gets lots of views. I put ads on it, because why not, right?So Youtube just sent me a link to their copyright detection tool and it have found 4 direct copy uploads. One of them has been fitted with headers and footers showing the guys channel logo, but all 4 are literal copies of my entire video.Is there any reason why I shouldn't submit take down notices? Most of the offending channels are small, one has 1.7K subs, while my original has nearly half a million views the copies have tiny view counts.

author: Cyberdragon
author_rank: Super Contributor
timestamp: January 18, 2020, 04:28:05 pm
content: Copyright can be voided if you willingly don't enforce it.

author: vwestlife
author_rank: Regular Contributor
timestamp: January 18, 2020, 09:09:49 pm
content: One of the few good features of the new Studio Beta is the copyright detection system, which automatically detects other videos that contain copies of all or part of your videos. Then it gives you options to ignore the match (if it's clearly Fair Use or an otherwise authorized use of your content), to send a message to the person who uploaded the copied video, to give them a 7-day warning to voluntarily delete the video before YouTube takes it down and gives them a copyright strike, or to issue an immediate takedown of the copied video.Generally most of the copies of my videos that I find are from spam-bots who re-upload one of my videos and put a spam link on it, in which case it's not worth bothering with the 7-day warning because there's probably no real person there to respond to it, so I just issue an immediate takedown. But if the channel does seem to be run by a real person, then I give them the 7-day warning.
Potting electronics enclosure die cast aluminum finned - Page 1
Forum section: electronics / general

author: yamajason
author_rank: Newbie
timestamp: January 18, 2020, 06:33:33 am
content: Anyone know the name of these I can't seem to find where to buy just the aluminum enclosure with the fins.

author: Benta
author_rank: Super Contributor
timestamp: January 18, 2020, 07:03:50 pm
content: I don't think you'll find it anywhere. Cast aluminium/Silumin enclosures like this one are usually custom made for the product manufacturer ("SZDULI"). The same goes for extruded special profiles like heat sinks.The manufacturer owns the production dies.
Source for datasheets - Page 1
Forum section: electronics / general

author: galvanix
author_rank: Contributor
timestamp: January 23, 2020, 02:32:27 pm
content: Hello EEVblog forum members,I've recently built a new PC with a Gigabyte X570 UD motherboard. This motherboard's SuperIO chip is an ITE IT8688E and unfortunately the datasheet for this chip isn't easy to get a hold of.The problem is that without a data sheet lm_sensors (a Linux utility to read system fan speed etc.) won't add this chip in their it87 driver (see this GitHub issue).There is apparently a work around which allows the chip to be used by forcing the kernel to use a different chip's driver, but unfortunately some of the numbers seem off.I was wondering if there are any good sources for these kind of datasheets that manufacturers are not really willing to give out?Thanks!

author: senso
author_rank: Frequent Contributor
timestamp: January 23, 2020, 02:45:39 pm
content: Buy a million and sign some NDA's, but then you can't share the datasheet nor use it to make an open source driver..Wait till someone reverse engineer it, or do it yourself..And even if you had a datasheet, you dont have the code running in the SuperIO chip, so the datasheet is not all that usefull without the code, and the code is signed and encrypted so its also not easy to extract it from the BIOS binary/rom.

author: magic
author_rank: Super Contributor
timestamp: January 23, 2020, 03:02:07 pm
content: Get a job there and steal oneNouveau developers complain that they are getting leaked internal NVIDIA documentation all the time which they are not allowed to look at if they don't want their independent driver effort to get in legal trouble.
Simpel switching Lithium ion/polymer charger IC - Page 1
Forum section: electronics / general

author: implor
author_rank: Regular Contributor
timestamp: January 16, 2020, 09:44:06 pm
content: I have been looking around for a switching super simple lithium ion/polymer charger IC.Basically I want a linjer IC simplicity with a switching efficiency.Requirements:in 4.5-5.5Vmin 1A out4.2V singel cellswitching (>80 efficiency)Current limit set with resistor.Anything suggestion?I have spent about a day looking at options but nothing is perfect. It's to complex require some setup/programming or something else.Original idea was to use a linjer charger but when I do the calculations it looks quite bad (1.68 watt loss). But I know by experience that estimate cooling factor of a pcb is not easy. You need to test it.

author: VK3DRB
author_rank: Super Contributor
timestamp: January 18, 2020, 11:33:33 am
content: Try the Texas Instrument's BQ24250. It will meet your specs and more. A well designed chip which I have used in my commercial designs. You might want to consider a separate BQ or other fuel gauge chip as well.Be aware if you are designing a product that has to meet safety approvals, either the battery pack itself has to have a integrated monitoring circuit to ensure the input voltage is not exceeded, or you have to put one on you PCB circuit. Why? Because if the BQ chip (or any chip for that matter) decides to fail where it shorts input to output, and especially if the supply is high current, the battery can fail in a catastrophic way. Make sure the battery pack has been tested and complies to IEC 62133.
A lesson in the danger of relying on computer language?  Facebook apologized... - Page 1
Forum section: electronics / general

author: Rick Law
author_rank: Super Contributor
timestamp: January 21, 2020, 06:34:42 am
content: I suppose this is a lesson in the danger of relying on computer language translation. It could start a war.Quoted from BusinessInsider.com (with emphasis added):Facebook on Saturday apologized formis-translating Chinese President Xi Jinping's name to "Mr. Shithole" in postson the site translated from Burmese to English....According to Reuters, mistranslation was first discovered ina post on Myanmar's State Counselor Office page, discussing a meeting between leader Aung San Suu Kyi and Xi. Whentranslated from Burmese to English, the post referenced Xi as "Mr. Shithole" numerous times....According to the statement, Facebook did not have Xi's name in its Burmese database, which led to the embarrassing gaffe. Essentially, without a reference, Facebook's system was forced to guess the translation of Xi's name, and similar tests in Burmese on words that begin with "xi" and "shi" produced "shithole."Full article here:https://www.businessinsider.com/facebook-apologizes-for-xi-jinping-mr-shithole-botched-translation-2020-1?op=1EDIT: Corrected wrong bolding of text and a missing line.

author: Leiothrix
author_rank: Regular Contributor
timestamp: January 22, 2020, 02:05:40 am
content: The problem is that their translation is still correct
And you thought Electronic Kitsets were the bees knees for youngsters... - Page 1
Forum section: electronics / general

author: aargee
author_rank: Frequent Contributor
timestamp: January 15, 2020, 01:39:13 am
content: The most dangerous toy in the world...https://www.atlasobscura.com/videos/this-atomic-energy-lab-kit-is-the-world-s-most-dangerous-toy?utm_medium=atlas-page&utm_source=facebook.comIt even puts my childhood Chemistry kits to the harmless category by comparison.
Parts  inventory software mentioned by Dave? - Page 1
Forum section: electronics / general

author: Arkytype
author_rank: Contributor
timestamp: January 18, 2020, 01:08:03 pm
content: Hello,Did I dream that Dave (in an EEVBlog YouTube) mentioned a parts inventory software? I think it had the word "bin" in the title. I remember clicking on a link but my memory's a blank after that. I think it was November-December 2019.I've read a few of the EEVBlog posts re inventory software from, 5-6 years ago but those don't suit my needs. I've got ten 60 drawer parts cabinets and each labeled drawer might be divided into as many as 3 compartments. Parts type range from semis to standoffs. Just need a way to locate say, a rubber grommet without having to stare down a wall full of cabinets.All my resistors and fuses are in a dozen Ohmite Little Devil 5 drawer cabinets so finding a 1/2 w 1k5 ohm resistor is easy enough.Thanks,Lee

author: kjr18
author_rank: Regular Contributor
timestamp: January 18, 2020, 04:27:00 pm
content: You mean this?

author: Arkytype
author_rank: Contributor
timestamp: January 18, 2020, 04:33:27 pm
content: Yep, that's the one.Thanks,Lee
Forum "All Unread Topics" broken? - Page 1
Forum section: electronics / general

author: PA0PBZ
author_rank: Super Contributor
timestamp: January 13, 2020, 08:13:49 pm
content: This is weird: I normally use "Show unread posts since last visit" to see what I missed but sometimes it resets and shows you only a few topics. No problem, because at the bottom right there is a button "All Unread Topics" which well... should show you all unread threads. This is the link:https://www.eevblog.com/forum/unread/?all;start=0But: Even if you read a thread and go back to all unread it is still there, and even more strange is that most of thebuttons behind the title link to the first post in the thread, even though I have read everything except the last message. And why do almost allbuttons link to the thread but to msg 587490?Some examples:https://www.eevblog.com/forum/altium/is-important-to-use-an-unique-via-when-connecting-planes/msg587490/?topicseen#newhttps://www.eevblog.com/forum/repair/enermax-atx-psu-repair/msg587490/?topicseen#newhttps://www.eevblog.com/forum/projects/interfacing-dds-to-low-noise-signal-conditioning/msg587490/?topicseen#newEven the TEA thread with close to 47000 messages shows the same msg number:https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/msg587490/?topicseen#newAnd that also opens the first message in the thread while I'm sure that I have read them all (...)So, any idea what is going on here? Does it do the same for you?TL;DR: The "All unread Topics" also shows the topics where I already read the last message and it often links to the first message in a thread which I already read and there's a strange message number. Something is broken!
Juno "reverse microwave" chiller! - Page 1
Forum section: electronics / general

author: paulca
author_rank: Super Contributor
timestamp: January 13, 2020, 10:41:24 am
content: Seen this spammed all over the place from CES2020.Turns out of course it's a rubbish, re-hack of an old, bad, idea.It's a peltier cooler with a heatpipe heatsink/fans and water heat transfer medium. They claim it can cool your bottle of wine in minutes! Why would you waste energy storing your wine in the fridge?It's only when you dig a little deeper you find this uses between 100W and 200W and needs to be left on 24/7 so it's ready to cool.So, it's an incredibly inefficient thermo-electric ice bucket.It does, again, highlight just have absolutely rubbish tech reporters are these days.ThunderF00ts been on it.

author: Halcyon
author_rank: Unknown
timestamp: January 13, 2020, 11:16:13 am
content: Quote from: paulca on January 13, 2020, 10:41:24 amBecause the fridge is on regardless and full of other foods which require chilling. Nevermind that a fridge that's full is more efficient than an empty one. :-)
Anyone with access to CSDN (Chinese Software Developer Forum) here? - Page 1
Forum section: electronics / general

author: Yansi
author_rank: Super Contributor
timestamp: January 13, 2020, 08:11:52 pm
content: Hello,is here anyone with access to CSDN (Chinese Software Developer Forum) and would be willing to download a file for me?Should be this one:https://download.csdn.net/download/ys_slj_1314/11648965(Coagent_Enterprise_Limited__SiI-PR-1066-B-9293.pdf)Many thanks!Yan//EDITed post title
This meter seems stressed - Page 1
Forum section: electronics / general

author: DaJMasta
author_rank: Super Contributor
timestamp: January 11, 2020, 12:38:15 am
content: Saw this scrolling through ebay, poor thing must have measured some things no meter should have...

author: tautech
author_rank: Super Contributor
timestamp: January 11, 2020, 01:37:25 am
content: Yep, poor thing has a black eye !

author: Nominal Animal
author_rank: Super Contributor
timestamp: January 11, 2020, 03:08:54 pm
content: And a tear dropping from the other eye...
Free energy microcontroller  - Page 1
Forum section: electronics / general

author: Cruz220
author_rank: Newbie
timestamp: January 10, 2020, 12:19:08 am
content: I've seen this cropping up on a few websites. Smells like free energy. According to article it harvests energy from radio waves.https://www.cnx-software.com/2020/01/08/onio-zero-offers-a-risc-v-microcontroller-that-runs-without-battery/amp/

author: ataradov
author_rank: Super Contributor
timestamp: January 10, 2020, 12:31:18 am
content: Variations of this existed for years. This is not new, and this does work. But it is for things like sensors that accumulate enough energy to send a frame, wake up and then go back to forced sleep.

author: thm_w
author_rank: Super Contributor
timestamp: January 10, 2020, 01:20:15 am
content: "The ONiO.zero can handle energy sources from multi-frequency RF bands and external sources like solar, ambient, temperature, kinetic, or voltaic cells."Its legithttps://www.digikey.ca/en/articles/techzone/2015/oct/rf-energy-harvesting-batteries-not-includedhttps://www.digikey.ca/en/techzones/energy-harvesting-solutions

author: wilfred
author_rank: Super Contributor
timestamp: January 10, 2020, 04:05:07 am
content: Quote from: Cruz220 on January 10, 2020, 12:19:08 amFree energy is completely different. Harvesting existing energy is not creating energy from nothing.

author: SiliconWizard
author_rank: Super Contributor
timestamp: January 10, 2020, 04:26:07 pm
content: Yup. Now while the technology is workable and not a scam in itself nor free energy, it remains to be seen whether this one project will get delivered...