hybridfree/eevblog-posts huggingface dataset:
Has anyone ever used a parallel slave to SPI master chip? - Page 1
Forum section: electronics / general

author: technix
author_rank: Super Contributor
timestamp: October 09, 2018, 02:30:07 pm
content: Do they even exist? I know there are parallel slave to I2C master chips.If there is none, which chip is better for building one myself: XC2C64A or PIC24FJ32GA002?

author: tsman
author_rank: Frequent Contributor
timestamp: October 09, 2018, 02:51:01 pm
content: I've used a NatSemi TP3465 Microwire master before. It has been discontinued for years now though.

author: technix
author_rank: Super Contributor
timestamp: October 09, 2018, 06:04:39 pm
content: Quote from: tsman on October 09, 2018, 02:51:01 pmThat is why I might have to roll my own, and from my research I found two candidates: XC2C64A CPLD for a more hardware approach, or PIC24FJ32GA002 for a more software solution. (That PIC24 has a 8-bit parallel slave port with two address bits.)

author: Bassman59
author_rank: Super Contributor
timestamp: October 10, 2018, 08:39:49 pm
content: Quote from: technix on October 09, 2018, 06:04:39 pmThat CPLD may not have enough resources to implement the I2C state machine and shift register. (The FPGA design I am working on now has an I2C master and I am trying to get Synplify to tell me that entity's resource usage ...)

author: technix
author_rank: Super Contributor
timestamp: October 11, 2018, 03:28:54 am
content: Quote from: Bassman59 on October 10, 2018, 08:39:49 pmWhat I am implementing is SPI, not I2C...

author: DeanA
author_rank: Regular Contributor
timestamp: October 12, 2018, 02:56:44 am
content: 74XX165, 74XX166

author: technix
author_rank: Super Contributor
timestamp: October 12, 2018, 03:05:35 am
content: Quote from: DeanA on October 12, 2018, 02:56:44 amIs there a single-chip solution? I am size constrained.

author: JustMeHere
author_rank: Frequent Contributor
timestamp: October 12, 2018, 04:20:33 am
content: Quote from: technix on October 12, 2018, 03:05:35 amYou can always program an auxiliary microcontroller to do this.

author: technix
author_rank: Super Contributor
timestamp: October 12, 2018, 06:35:55 am
content: Quote from: JustMeHere on October 12, 2018, 04:20:33 amSo, XC2C64A, or PIC24FJ32GA002?
TEquipment Now Shipping To Australia. - Page 1
Forum section: electronics / general

author: Muttley Snickers
author_rank: Unknown
timestamp: October 17, 2018, 12:15:15 pm
content: I was just reading another thread which included a link to the TEquipment site and was confronted with a banner which stated they are now openly willing to ship products to Australia, this was the first time I had seen this banner which is pictured below and what’s more they are now also showing prices in AUD which I had not seen before so this will be handy for price comparisons. I’m not sure how the local distributors feel about this announcement as it may act to undermine some of their monopoly style pricing structures as some products could in fact work out cheaper to import from overseas.Anyway, people having equipment or grey imports shipped in from overseas may risk not having local distributor support or a manufacturers warranty and a reminder that shipping something back to overseas would not be practical due to postage costs so this should also be a consideration with any such purchase. I made a quick price comparison between a couple of products such as the Rigol DS-1054Z and it works out cheaper to purchase one here in Australia through Emona Instruments and this would obviously include a warranty, some other products such as an imported Fluke 117 for example would not have a local warranty but might be worth the risk for those keen to save a few bucks as these are rather pricey down here.TEquipmenthttps://www.tequipment.net/Emona Instruments.https://www.emona.com.au/

author: Gromitt
author_rank: Regular Contributor
timestamp: October 17, 2018, 02:03:31 pm
content: They are shipping to Sweden to, and the Rigol DS1054Z works out to be considerable cheaper locally.Best to check around locally first if you want to buy something from TE (or from anywhere for that matter).
Does anyone have any contacts in Chengdu,China? - Page 1
Forum section: electronics / general

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: October 11, 2018, 07:19:38 am
content: I have an install coming up in Chengdu - we'll be needing some basic electrical supplies - mains cables, plugs etc. and RS China are being a PITA as my client is not a company based in China so won't take an order for delivery in China.Does anyone have any knowledge of the area or English-speaking contacts there who could help with sourcing, i.e. they know the local electrical distributors /markets etc.?We're _probably_ OK but my client is getting a bit panicky....

author: gedong
author_rank: Contributor
timestamp: October 11, 2018, 01:47:11 pm
content: if you have chinese contact, i would suggest that you buy everything online. they have online platform called taobao.com which sell almost everything you need.otherwise, AFAIK RS do accept order from individuals as long as their delivery address is within china. around 10 years ago i bought some transformer from them delivered to my apartment (back when i was a student )if you do not have contact in china, and do not mind pay small fee for a translator and company, you could try googling for a china freelancer specialized for this kind of work.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: October 11, 2018, 02:29:45 pm
content: I did suggest Taobao but I don't want to end up with a reel of the same mains cable they use for dodgy mains leads I've seen on cheap Chinese products!The problem is my client is in Hong Kong, the install team are based in Shanghai so don't know local suppliers. I'm sure we'll figure it out when we all get there..The other issue with RS is they're saying 2 weeks shipping time on everything, which will be too late
Jeri just released a video on her YT channel about CastAr - Page 1
Forum section: electronics / general

author: tpowell1830
author_rank: Frequent Contributor
timestamp: October 09, 2018, 03:48:04 pm
content: It's been a long time, but new video...

author: FrankT
author_rank: Regular Contributor
timestamp: October 11, 2018, 12:05:30 am
content: Some interesting comments and replies from Jeri suggesting Castar isn't dead! Woot!

author: tpowell1830
author_rank: Frequent Contributor
timestamp: October 11, 2018, 12:49:23 am
content: Quote from: FrankT on October 11, 2018, 12:05:30 amYes it's kind of funny that Jeri bought all of the tech gear that she had developed at Valve when she got laid off and then started building castAR with all of the tech gear and now that castAR has gone bankrupt, she was able to buy all of the tech from castAR again. So I think that we will see castAR get started by Jeri again, weird, I know.But, I am glad she is starting to do more appearances as well. From a tech point of view, I think she is a rock star.
Carver MXR2000 Part 4 - "Sonic Holography" - - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 09, 2018, 04:19:39 am
content: Carver MXR2000 Part 4 - "Sonic Holography" -Published on Oct 7, 2018Posted 10/9/2018

author: helius
author_rank: Super Contributor
timestamp: October 09, 2018, 04:49:31 am
content: You may want to check your settings, the video doesn't play in an embed as in your message above.Carver was especially well known for pushing snake oil, usually justified by completely redefining common terms of art. For example, the "Magnetic Field Power Amplifier" which is not, despite the name, an amplifier based on saturable reactors. He redefined "Magnetic Field Amplifier" to mean a transistor based amplifier with a switching power supply.The problems with stereo reproductionare, in fact, mostly due to transducer limitations, so it's highly misleading to say that it is "pale and muddled, no matter how good your speakers are". Perfect speakers (without resonance, phase shift, or dispersion) produce perfect, spatially realistic sound, when the recording captures stereo information. Unfortunately, perfect speakers are also unmanufacturable, so the only way to improve the sound is to compensate for their defects in some way—and self-powered monitors are designed to do that compensation to a better or worse extent. This is simply not possible by pushing a button on an independent amplifier since it has no understanding of the parameters of the transducer in use.

author: Cyberdragon
author_rank: Super Contributor
timestamp: October 10, 2018, 05:46:59 am
content: Ion speakers (plasma or flame) have no resonance and perfect dispersion (except the tiny area blocked by components).http://www.swtpc.com/mholley/PopularElectronics/May1968/Flame_Amplification.htmSo yes, it is possible to build a near perfect speaker (the limit being construction), however, it would absolutely not be something you could have in your living room, or even in your house except your garage. It would take large amounts of electricity for an arc (or corona), or for flame electricity, fuel, catalyst (either solid or mist), and produce lots of exhaust.Also, aren't Carver the ones with those stupid unregulated triac dimmer supplies that you had to plug into a line stabalizer just to even use?
Matte soldermask - Page 1
Forum section: electronics / general

author: Alex
author_rank: Regular Contributor
timestamp: October 12, 2018, 12:27:20 pm
content: I am looking for a hobbyist manufacturer (seeed/itead etc) that offers matte white or black soldermask in a pool service.Has anyone spotted one?Cheers,Alex

author: TimNJ
author_rank: Super Contributor
timestamp: October 12, 2018, 01:53:36 pm
content: Pool service? Like multiple people's designs on a single panel?AllPCB has Matte Green or Matte Black.https://www.allpcb.com/

author: Alex
author_rank: Regular Contributor
timestamp: October 12, 2018, 05:16:03 pm
content: Thanks, yes that's what I meant; it tends to be a lot cheaper.I see the allpcb option, 50-off 2L just under 10x10 cm for $90 shipped. Not too bad.Alex

author: TimNJ
author_rank: Super Contributor
timestamp: October 12, 2018, 10:01:52 pm
content: Quote from: Alex on October 12, 2018, 05:16:03 pmI kind of have a matte solder mask fetishso I've looked around a bit. AllPCB seemed like the best option to me. Though, I'm sure depends on board size, quantity, etc..
Louis Rossman feat. in Apple's BS repair practices on CBC NEWS TV in Canada. - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: October 09, 2018, 12:39:54 pm
content: Louis Rossman feat. in Apple's BS repair practices on CBC NEWS TV in Canada.Time for the flames...

author: Bud
author_rank: Super Contributor
timestamp: October 09, 2018, 12:52:59 pm
content: No love for the Toronto Apple store but most certainly the staff are not experienced repair force but seasoned monkeys trained to look for water damage indicators. So the employee may have been honest with his assessment, since they do not know any better.

author: ataradov
author_rank: Super Contributor
timestamp: October 09, 2018, 04:29:24 pm
content: Quote from: Bud on October 09, 2018, 12:52:59 pmYes, this is called plausible deniability
https://www.quad9.net/ - DNS Safety layer, Driven Internet  Security - FOR FREE - Page 1
Forum section: electronics / general

author: Zucca
author_rank: Unknown
timestamp: October 09, 2018, 02:19:24 pm
content: https://www.quad9.net/It looks like you are stupid if you are not using it, am I missing something? I have that kind of feeling... it looks fishy...I could totally be wrong, in this case I apologize in advance.

author: ataradov
author_rank: Super Contributor
timestamp: October 09, 2018, 04:28:24 pm
content: It is a legit service, but it may be slower than your normal DNS depending on your location.Steve Gibson from the Security Now podcast had a full episode on this. Here is the transcript -https://www.grc.com/sn/sn-638.htm.Audio is also available.
Anyone ever used 'eXpress' system modelling software by DSI International? - Page 1
Forum section: electronics / general

author: KSP
author_rank: Regular Contributor
timestamp: June 09, 2017, 09:53:19 am
content: I've just been accepted for a position as Trainee Test Architect, and I will be using the above software package. But in order to give me a head start I would like to get my hands on a user guide or something similar, for some light bedtime readingObviously the position will include training, but if anyone can give me some hints or tips, or any documentation, that would be greatly appreciated(https://www.dsiintl.com/products/express/)

author: DK9235
author_rank: Newbie
timestamp: April 23, 2018, 06:46:27 am
content: HiI am using it for 8 years now....Will be happy to assist.Dan

author: KSP
author_rank: Regular Contributor
timestamp: October 09, 2018, 01:11:32 pm
content: Just to revive a relatively old post...I’ve been using the tool for over a year now and I’m relatively comfortable with it. The only thing I’m struggling with at the moment is how the hell do you model complex programmable components such as FPGAs?Do I really need to sift through the HDL code and try and form a state machine model from it?Thanks
Does anybody have a Kinect? Is anybody using it on Linux? - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: October 09, 2018, 01:58:42 am
content: I'm interested in how the Kinect works and what is involved in using it with photogrammetry software, for example in indoor mapping. ("SLAM")Basically I have thought they were pretty cool for a long time and now I want to do some fooling around with it.There is a project for this.. and a shared libraryhttp://openkinect.org/

author: ebclr
author_rank: Super Contributor
timestamp: October 09, 2018, 02:02:45 am
content: I have one i bought to make a 3D scanner, I will try out thank you for the link

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 09, 2018, 02:06:18 am
content: I have had one since shortly after I read that it can be used with a PC. Also got a second generation Kinect when they went on clearance. They make fun toys but actually making good use of them takes a lot of CV knowledge...

author: cdev
author_rank: Super Contributor
timestamp: October 09, 2018, 02:42:44 am
content: Here is another one I just found!https://github.com/nlamprian/OCLSLAMI recently have also had good luck with "colmap" but Ive been unable to use it for dense reconstruction (only sparse) because I have an AMD, (not Cuda-capable) graphics card.Cuda seems to be much better supported in this area. (For a ton of options- check out this series of blog posts where Peter Falkingham tries out all the various options)https://pfalkingham.wordpress.com/2016/09/14/trying-all-the-free-photogrammetry/So I was overjoyed to find this project that uses OpenCL.Quote from: ebclr on October 09, 2018, 02:02:45 am
Barcode-Scanning Padlock Opened With Screwdriver - Page 1
Forum section: electronics / general

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 09, 2018, 01:35:01 am
content: Julian Ilett also reviewed a "smart" lock that is opened in seconds with pliers.

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 09, 2018, 01:37:46 am
content: This works too...
Mystery Item? - Page 1
Forum section: electronics / general

author: Doogs
author_rank: Contributor
timestamp: October 08, 2018, 02:50:45 pm
content: I'm cleaning up the basement and found this thing or things in the box for the Yihua 995D rework station. I have absolutely no idea what it is or what it's for. Maybe someone can identify it.My guess would be some kind of chip lifter for the hot air gun

author: Dr. Photon
author_rank: Contributor
timestamp: October 08, 2018, 03:37:53 pm
content: The piece of bent metal goes on the end of the plastic stick. It is a chip-popper "fork" to help when hot-air desoldering SMD chips. You stick the thin metal ends of the fork under the pins of the chip and use it to apply gentle lifting pressure while hot-air-ing the chip/legs.

author: Doogs
author_rank: Contributor
timestamp: October 08, 2018, 03:48:41 pm
content: Well I realized I didn't finish my post and while I was editing you posted this LOL. yeah I kinda figured it was a lifter but you never know with the Chinese.

author: gamalot
author_rank: Super Contributor
timestamp: October 08, 2018, 04:26:04 pm
content: Yes it's IC lifter, try "IC起拔器" in google translate.
Soldering - Advanced levels. - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: October 07, 2018, 05:44:19 pm
content: Right, I am not saying that woman can't solder, because I am not, they are often very good at it.But I AM saying THIS woman never used a soldering iron in her life.See if you guys can spot the problem?I love how they ALMOST pulled off the whole professional electronics lab theme.

author: maginnovision
author_rank: Super Contributor
timestamp: October 07, 2018, 05:46:02 pm
content: They're prosthetic fingers. She actually can't let go.

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 07, 2018, 06:37:54 pm
content: The soldering iron appears discolored as in it has actually been used and isn't just one they bought to use as a prop. It also looks too cheap to be worth trying to buy a used one. Maybe they plugged it in just to make it look used, but then wouldn't it be obvious that's not the right way to hold it? I think the picture was purposely staged wrong because they know it would go viral.

author: Unknown
author_rank: Unknown
timestamp: October 07, 2018, 06:39:01 pm
content: I checked out the watermark on the picture, its from a Malaysian stock image company. I am convinced this is a real photo.

author: Cyberdragon
author_rank: Super Contributor
timestamp: October 07, 2018, 07:06:28 pm
content: There's plenty of thesehttps://www.eevblog.com/forum/chat/stock-electronic-image-fails/

author: Red Squirrel
author_rank: Super Contributor
timestamp: October 08, 2018, 01:40:53 am
content: This is soldering on hard mode. After you master it, you don't feel the pain anymore, and it allows you to be more precise.I also like how that lab looks more like a chemical or biology lab or something.

author: Unknown
author_rank: Unknown
timestamp: October 08, 2018, 09:04:36 am
content: Right, I ordered a cpu upgrade for an old laptop and I see this...I blame Dave for thisone:Don't ship it, open, then dismantle it??? Twice no less!

author: Electro Detective
author_rank: Super Contributor
timestamp: October 08, 2018, 10:34:03 am
content: This may ignite a few flames from PCers, but it's gotta be saidFor starters this may be a Lady BoyThe soldering iron is not plugged in as the planned photo shoot prop was most likely a 'Best FlooQ' badged multimeterWhat is he/she/it? going to solder on that PC motherboard anyway... from the top side ?!Yes, it can sorta be done (if one knows what needs to be done) but I'll bet he/she/whatever can't cut it.The background scenario looks like a place where they test washing powders and dish detergents,assuming it's not a green backdrop thingie...Great post btw, good dumbassery giggles are hard to come by and always welcome

author: coppercone2
author_rank: Super Contributor
timestamp: October 08, 2018, 01:29:36 pm
content: t-1000 detected

author: jeffreyjames44
author_rank: Contributor
timestamp: October 08, 2018, 03:41:38 pm
content: Must have tough hands.... i'm impressed
Circuit Specialists 15% off - Page 1
Forum section: electronics / general

author: BillB
author_rank: Unknown
timestamp: October 10, 2018, 03:58:05 pm
content: Got an email that they are having a site wide 15% off sale - ends today. Promo code is HALLOWEEN15.Always after I buy everything I need that the sales start.

author: jeffreyjames44
author_rank: Contributor
timestamp: October 10, 2018, 07:07:55 pm
content: Good to know, thank you!
Looking for a SW tool to transcribe a .mp3 music file. - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: October 05, 2018, 05:54:44 pm
content: NOTE: Yes, I'm also searching elsewhere as this is not a music forum, but, I though I would just ask here as well...I have a piano synth solo track of a song I need transcribed into sheet music. I'm looking for the best available public domain and perhaps paid software which can perform the task.So far, I downloaded a demo versions of ScoreCloud and notation composer 3 and I'll begin playing around tonight. This is my weekend project. Any help, software links, tricks would be welcomed...

author: Ampera
author_rank: Super Contributor
timestamp: October 05, 2018, 05:59:11 pm
content: Would be way easier if you could find a MIDI rendition of the same song, but that's I guess like saying, it would help if you just got the sheet music anyways.Me thinks that even if there were a program for this, it wouldn't work terribly well. Unless it's something very verbose and simple, I'd imagine there's just too much complicated stuff going around most songs to get good sheet music out of it.

author: BrianHG
author_rank: Super Contributor
timestamp: October 05, 2018, 06:15:56 pm
content: Quote from: Ampera on October 05, 2018, 05:59:11 pmNo midi exists. There are 1k$ studio audio manipulation tools which do it near flawlessly, I need cheap and free.Example, Celemony's Melodyne:http://www.celemony.com/en/melodyne/what-is-melodyneNote I am also trying their trial version if it has the feature enabled...

author: Nusa
author_rank: Super Contributor
timestamp: October 05, 2018, 09:29:17 pm
content: If it's a one-off and not too long, there's always the option of finding a musician with perfect pitch that finds such things easy to do by hand. Probably not for free, unless it's a good friend, but certainly a lot cheaper than $1K.

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 05, 2018, 10:43:40 pm
content: Plot the file in the frequency domain, then detect the peaks and transcribe them to notes. You'll have to figure out how to determine if a peak is a note or merely a harmonic of another note.

author: BrianHG
author_rank: Super Contributor
timestamp: October 06, 2018, 02:59:29 pm
content: So Far, Celemony's Melodyne is in a class of it's own. However, it very slow on my 3Ghz 4 core system. It needs CPU horsepower!As of now, everything else is lousy at doing the conversion.

author: John B
author_rank: Frequent Contributor
timestamp: October 07, 2018, 02:26:52 am
content: Really, get a musician to transcribe it. Just forget all the "transcribe for you" software ideas.I use "Transcribe!" by seventh string software:https://www.seventhstring.com/It has very good time stretching algorithms to slow the song down with adding too many artefacts.I guess I would recommend that if you were doing this more than once.Alternatively, you can achieve the same thing in a DAW. You could try using Reaper in evaluation mode, and slow down the MP3 as well (without affecting pitch)Maybe can you post the MP3, or point to it on youtube?
Anti-spam thread - Page 1
Forum section: electronics / general

author: hermit
author_rank: Frequent Contributor
timestamp: October 09, 2018, 05:15:40 pm
content: Quote from: rea5245 on October 08, 2018, 07:17:09 pmA list pages, if they exist, would be useful here and other places. If you know any specific sites would you please paste an url to that page here? Much appreciated.
Colour coded parts storage. - Page 1
Forum section: electronics / general

author: Tandy
author_rank: Frequent Contributor
timestamp: October 06, 2018, 01:52:53 pm
content: Just wondering if people have different coloured storage trays, bins or drawers to store their components in and if you do what colour code do you use?For exampleredfor resistors,bluefor capacitors or whatever?

author: Messtechniker
author_rank: Frequent Contributor
timestamp: October 06, 2018, 03:00:43 pm
content: Quote from: Tandy on October 06, 2018, 01:52:53 pmNo. I use transparent or at least semi-transparent plastic boxes and bags with labels indicating the contents in large print. A Brother P-touch label printer is quite handy for this.
Help with how to use an inductor bridge please? - Page 1
Forum section: electronics / general

author: Terry01
author_rank: Frequent Contributor
timestamp: October 05, 2018, 04:00:57 pm
content: I picked up this test bridge on Ebay and was wondering if one of the more experienced/knowledgeable forum members could give me a quick 5 mins Layman terms explanation on how to use it properly.This is the first test bridge i will have owned/used so a quick "crash course" on how to use it would be very much appreciated.I know we have all the digital stuff now where you just hook up the leads and whatever meter is used will tell you everything you want to know but i like the thought of using the older test gear so i would like to buy some older stuff and learn how to use/fix it properly.This bridge is obviously very simple compared to some of the test gear out there but everyone has to start somewhere right?Anyways enough of me yabberring waffleThanks in advance for any help offered..DOH!!! Forgot to add the picture 1st time round! What a clown eh?!

author: TimFox
author_rank: Super Contributor
timestamp: October 05, 2018, 08:08:14 pm
content: The unit pictured is not an inductor bridge, but an adapter to use a bridge to measure an inductor while it has direct current flowing through it. The unit has a coupling capacitor, connection to an external power supply, and means for measuring the DC bias.

author: Terry01
author_rank: Frequent Contributor
timestamp: October 05, 2018, 08:28:19 pm
content: Cool, thanks...so do I need another device/unit to use with it?

author: aargee
author_rank: Frequent Contributor
timestamp: October 06, 2018, 12:28:07 am
content: It looks like it’s primarily used for saturating the transformer core under test on the bridge (which is a separate item)?

author: Terry01
author_rank: Frequent Contributor
timestamp: October 06, 2018, 10:59:43 am
content: Cool, thanks for the help. I'll figure it out.Any other help meantime is also welcome
MoBike teardown - Page 1
Forum section: electronics / general

author: NivagSwerdna
author_rank: Super Contributor
timestamp: May 15, 2018, 01:03:11 pm
content: In and around London we are starting to see MoBikes...Apparently these have GPS trackers and presumably GSM or similar to report their position.Is there a documented tear down anywhere?

author: Tadas
author_rank: Contributor
timestamp: May 15, 2018, 07:52:23 pm
content: Someone did oBike teardown:Not too much commentary, but read the description. Enough to get an idea what's inside.

author: vk3yedotcom
author_rank: Frequent Contributor
timestamp: October 06, 2018, 05:36:24 am
content: oBike couldn't make the business work and has now gone bust.But you occasionally still see a few around.I found one a few days ago and cracked it open. It has a nice solar cell, piezo buzzer, battery and motor.
Become A Super Electronics Troubleshooter! /135 Watt Fender amplifier - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 05, 2018, 11:59:44 am
content: Become A Super Electronics Troubleshooter!Mr Carlson's LabPublished on Oct 5, 2018In this video, we check out a 135 Watt Fender amplifier. I will talk about things to consider before taking on a job.... To tracing a signal right from the input of the amplifier, all the way to the output. We will use the Forecasting Capacitor Leakage Tester to determine whether to "leave or replace" the capacitors, and much more.Posted 10/5/2018
Louis Rossman's store affected by fire. - Page 1
Forum section: electronics / general

author: station240
author_rank: Unknown
timestamp: October 03, 2018, 06:19:49 pm
content: Short explanation, the building on fire (still), is next door to the building housing the Rossman Group store.Video being sent by Louis to customers14 people with minor injuries, mostly firefighters.QuoteQuoteThe video in the CBS video "FDNY Update On East Village Fire" says residents will be allowed to return to buildings except those two adjacent to the building on fire.https://www.firefighternation.com/articles/2018/10/fdny-battles-six-alarm-fire-in-manhattan.htmlhttps://newyork.cbslocal.com/2018/10/03/east-village-early-morning-fire/Meeting tonight 9PM for local businesses on the status.

author: rx8pilot
author_rank: Super Contributor
timestamp: October 03, 2018, 06:31:51 pm
content: That is rotten news.I appear that there are no fatalities, but a considerable number of injuries. Sad to see this.FDNY is a very brave group to run into these dangerous situations - fire + old buildings + very dense = a stunning challenge.Hope Louis comes out ok.

author: station240
author_rank: Unknown
timestamp: October 03, 2018, 07:57:43 pm
content: Follow up stream outside the store, Louis is really low on battery.

author: MK14
author_rank: Super Contributor
timestamp: October 04, 2018, 12:43:10 pm
content: Ironic choice of video names, in the video he made a few days ago."An eli-ish youtubeburnoutrepair livestream"

author: Nusa
author_rank: Super Contributor
timestamp: October 04, 2018, 06:48:23 pm
content: From the NY video showing the back of the buildings, I'd say his store is probably intact, so far as contents go. But the infrastructure could be damaged...hard to do any work if there's no electricity. Phones and internet could be affected as well.

author: Mr. Scram
author_rank: Super Contributor
timestamp: October 04, 2018, 07:04:20 pm
content: Quote from: Nusa on October 04, 2018, 06:48:23 pmWater and smoke damage could have destroyed anything inside.

author: Nusa
author_rank: Super Contributor
timestamp: October 04, 2018, 07:33:10 pm
content: Quote from: Mr. Scram on October 04, 2018, 07:04:20 pmWe'll find out in the next couple days, I'm sure.The helicopter video I saw showed unmasked firefighters congregating in the space BETWEEN Louis's back room (which projects from the building rear at ground level) and the kitchen area that was burning next door. If the smoke was THAT bad, they wouldn't be standing there.

author: Macbeth
author_rank: Super Contributor
timestamp: October 04, 2018, 08:02:22 pm
content: Quote from: Mr. Scram on October 04, 2018, 07:04:20 pmNot with Louis - he specializes in water damage repair! Oh wait, all his own tools are probably FUBAR too.

author: Nusa
author_rank: Super Contributor
timestamp: October 04, 2018, 08:15:00 pm
content: So I wasn't entirely right. Sounds like his basement was flooded.https://twitter.com/RossmannGroup/status/1047895333152411648Quote
The art of electronics Exercise 13.7 - Page 1
Forum section: electronics / general

author: Detzi
author_rank: Regular Contributor
timestamp: October 02, 2018, 10:12:53 am
content: Hi there,i have spent a few hourstrying to solve Exercise 13.7 in "the Art of Electronics" until i noticed that there is a little error in the Equation given on page 962.Kp is substituted with 0.4 which is, following the equation given in the box on page 963, wrong. It should be ~0.796.The path to Kvco seems also wrong but has the right result.This confused the heck out of me because i suspected my math skills to be off. As i couldn't solve it, i started to "google" for a solution to this Exercise but couldn't find anything so i thought i post this to help people in the future looking for help.

author: joseph nicholas
author_rank: Frequent Contributor
timestamp: October 02, 2018, 10:22:48 am
content: All books contain mistakes, may be the authors need to sell this book with an errata page. I'll bet this isn't the only one.

author: takahidehimself
author_rank: Contributor
timestamp: October 02, 2018, 11:26:53 am
content: There's an errata available online:https://artofelectronics.net/errata/

author: Detzi
author_rank: Regular Contributor
timestamp: October 02, 2018, 12:13:18 pm
content: Shure enough it is already in there.
Texas Instruments: the most advertised semiconductor company on the Web? - Page 1
Forum section: electronics / general

author: Scratch.HTF
author_rank: Regular Contributor
timestamp: October 03, 2018, 12:22:15 pm
content: From what I have seen on the Web over a long period of time, most of the online ads from semiconductor companies were from Texas Instruments.In your experience, do you believe that this is true?

author: coppice
author_rank: Super Contributor
timestamp: October 03, 2018, 12:28:56 pm
content: Quote from: Scratch.HTF on October 03, 2018, 12:22:15 pmIts hard to say, because you get fed most ads based on your history. If you work for X, eventually 90% or more of the ads you are fed can be for X. This frequently makes employees feel their products are really being pushed well, when in reality hardly anyone knows about them. If you work for TI, or have a close relationship with them (e.g. work for a distie), you may see an extreme number of TI ads.

author: Brumby
author_rank: Unknown
timestamp: October 03, 2018, 02:37:40 pm
content: That's very true.One day I made about 3 or 4 searches for double power points with a third switch to suit some application Dave (I think) was working on. After that day, I never went looking for them again - but I was getting them pop up in various ads for a couple of months.

author: RoGeorge
author_rank: Super Contributor
timestamp: October 03, 2018, 02:40:49 pm
content: IMO, yes, TI beats them all.

author: JPortici
author_rank: Super Contributor
timestamp: October 03, 2018, 06:16:18 pm
content: Don't know, don't care, adblocker FTW

author: bson
author_rank: Unknown
timestamp: October 04, 2018, 12:33:43 am
content: My downstairs neighbor ordered diapers online. I was curious to see how much they saved by ordering online, so googled and checked various sources for prices. OMG, for weeks afterwards I was inundated with ads for baby items!

author: Brumby
author_rank: Unknown
timestamp: October 04, 2018, 01:57:29 am
content: Yep!You triggered an algorithm somewhere! !

author: coppice
author_rank: Super Contributor
timestamp: October 04, 2018, 08:49:31 am
content: Quote from: bson on October 04, 2018, 12:33:43 amA big factor in ad or youtube video deployment seems to be the overall popularity of the material. Thus, if you click once on something mass market you get a flood of similar material pushed at you for weeks. However, for something harder to find, that you'd really like to be presented with, it will take a long term pattern of clicks to get some positive action. E.g. it takes a long term pattern of watching technical videos on YouTube before interesting new technical videos are offered to you. Click once on a K-pop video, just to watch the craziness, and your YouTube starting page will be filled with K-pop videos for weeks.
One bit of nothing. - Page 1
Forum section: electronics / general

author: mtdoc
author_rank: Super Contributor
timestamp: October 02, 2018, 06:48:18 pm
content: Another example of crappy science journalism. Been seeing buzz about this - people thinking that it is actually some sort of breakthrough.The first “social network” of brains lets three people transmit thoughts to each other’s headsBasically, they've utilized a bunch of expensive hardware to allow three people to exchange 1 bit of information with each other very slowly. Tin cans and pieces of string would be more effective.People have this fantasy that science will sometime soon allow people to transmit thoughts to each other. The reality is that we're really no closer to being able to do that than we were 30 years ago.
GE AMX-II, mobile 110kV X-RAY system teardown (1979 vintage smell) - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 02, 2018, 04:02:40 am
content: GE AMX-II, mobile 110kV X-RAY system teardown (1979 vintage smell)Kaizer Power ElectronicsPublished on Oct 1, 2018Teardown of SCR inverter controller, driver and bridge for a General Electric mobile x-ray unit, the AMX-II. Features a 120V battery operatedPosted 9/2/2018
EE in pop culture: circuit board obstacle course - Page 1
Forum section: electronics / general

author: Rick Law
author_rank: Super Contributor
timestamp: October 01, 2018, 11:48:02 pm
content: (This is not a new show, but I just stumbled into it on youtube.)I did not expect an obstacle course with an obstacle named "circuit board". To be precise, it should be called "through-holecircuit board".ANW (American Ninja Warror) is a fairly well known obstacle course show, I have been watching the original Japanese version for a while before I cut the cord. On ANW, one of the new (2016) obstacle is the "circuit board"... Thought you guys would find the "circuit board" interesting...Here is theweb descriptionbut the video linked below is better:http://sasukepedia.wikia.com/wiki/Circuit_BoardThe video- "Circuit board" is the first scene butdetails of it is about 37 secondsinto the video:https://youtu.be/Gv0F0HCg9Qc
Part search and BOM making tool - Page 1
Forum section: electronics / general

author: kasbah
author_rank: Contributor
timestamp: October 01, 2018, 09:04:54 pm
content: Hey all,I am working on an (open source) BOM building tool that uses the Octopart API:https://bom-builder.kitspace.orgIt's still being worked on but I would love it if you gave it a try and gave me some feedback..
Very cheap SMD components - Page 1
Forum section: electronics / general

author: lewis
author_rank: Frequent Contributor
timestamp: October 01, 2018, 03:02:08 pm
content: If anyone's short of any 4.7K 1206 resistors, check out this absolute bargain:https://www.ebay.co.uk/itm/KOA-RM73B2BT472J-Resistor-1206-SMD-4-7K-Ohm-4K7-5-1-4W-Reel-of-5000/283154885053

author: Brumby
author_rank: Unknown
timestamp: October 01, 2018, 04:16:41 pm
content: Why is it a bargain?I can choose from any one of a dozen 5,000 piece reels of 1206 4k7 5% 1/4W SMD resistors from Digikey for under AU$75.

author: langwadt
author_rank: Super Contributor
timestamp: October 01, 2018, 04:23:38 pm
content: Quote from: Brumby on October 01, 2018, 04:16:41 pmand they are not 18 years old so there is a chance you will be able to solder them

author: saike
author_rank: Regular Contributor
timestamp: October 01, 2018, 04:24:12 pm
content: I think a certain amount of sarcasm may be involved in the original post, look at the cost of postage

author: Brumby
author_rank: Unknown
timestamp: October 01, 2018, 04:31:59 pm
content: Oh, I see.

author: rstofer
author_rank: Super Contributor
timestamp: October 01, 2018, 06:22:48 pm
content: The item is reported to be located in the US but it doesn't post to the US. Hm...
UpTube - Page 1
Forum section: electronics / general

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: September 28, 2018, 09:09:14 pm
content: ARM fundamentals:https://up-tube.com/upvideo/7YdCWTaOCZZ

author: EEVblog
author_rank: Unknown
timestamp: September 29, 2018, 12:46:24 am
content: I split out George's post in another thread to a new topic.What is uptube and how does a channel on there get over 50k subs and a 280k view in 3 weeks for an ARM tutorial video?

author: EEVblog
author_rank: Unknown
timestamp: September 29, 2018, 12:51:40 am
content: LOLSeems I have an Uptube channel with 541k subscribershttps://up-tube.com/channel/HP2QwSR7Ks11HEMdJOvtpIBDI don't remember signing up, but I guess I must have...

author: EEVblog
author_rank: Unknown
timestamp: September 29, 2018, 12:54:51 am
content: Seems it' just a complete mimic of Youtube. All the comments and views are the same there

author: tpowell1830
author_rank: Frequent Contributor
timestamp: September 29, 2018, 01:11:22 am
content: My YT videos are there as well and I know that I didn't sign up. Many of the videos that I click, such as yours, gives an error.

author: langwadt
author_rank: Super Contributor
timestamp: September 29, 2018, 01:13:23 am
content: Quote from: EEVblog on September 29, 2018, 12:46:24 amseems like some weird front for youtube(scam?), video is 5 years oldhttps://youtu.be/7LqPJGnBPMM

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: September 29, 2018, 09:29:25 am
content: Quote from: EEVblog on September 29, 2018, 12:46:24 amYeah, it's weird, I have no idea what's up with that site.

author: station240
author_rank: Unknown
timestamp: October 01, 2018, 06:09:48 pm
content: More fake/stolen content, on a website that only exists in an attempt to make the domain more valuable when someone buys it.Scam works like this:1. Buy a domain that sounds good.2. Make a website theme to match the domain.3. Have your bot steal content from other parts of the net, to make your site seem legit to users/search engine bots.4. Demand way too much money from anyone who wishes to buy the domain and host an actual (!) website.5. Sell the domain for profit, or just give up and sell it to the next [descriptive term] retarded domain camper.
Clive Maxfield Books - Page 1
Forum section: electronics / general

author: Markybhoy
author_rank: Regular Contributor
timestamp: September 30, 2018, 11:03:20 am
content: I picked up an old book Bebop Bytes Back: An Unconventional Guide to Computers (0965193403) but becuase it was so old it did not have the the CD that comes with it.I was wondering if anyone knows how I could get a copy of it, would an iso be available for download anywhere ?The CD contains a simulator and labs to work through so would be handy to have.I emailed Clive Maxfield and the Publisher but no response so far.

author: Markybhoy
author_rank: Regular Contributor
timestamp: October 02, 2018, 11:51:19 am
content: Clive got back to me and sent the files

author: 2N3055
author_rank: Super Contributor
timestamp: October 02, 2018, 12:43:07 pm
content: Quote from: Markybhoy on October 02, 2018, 11:51:19 amSuch a cool thing to do!!

author: CJay
author_rank: Super Contributor
timestamp: October 02, 2018, 08:41:31 pm
content: Quote from: 2N3055 on October 02, 2018, 12:43:07 pmhe always seemed a pretty cool guy, he was involved with EPE magazine in the UK for a while, may still be.
Carver MXR2000 Part3 - Magnetic Field Amplifier Theory and Testing - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 30, 2018, 04:08:51 am
content: Carver MXR2000 Part3 - Magnetic Field Amplifier Theory and TestingxraytonybPublished on Sep 28, 2018Posted: 9/30/2018

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 30, 2018, 04:10:05 am
content: Carver MXR2000 Part 3A - Magnetic Field Amp Calibration Notes
Curious comparing prices.... - Page 1
Forum section: electronics / general

author: Simon
author_rank: Unknown
timestamp: September 29, 2018, 10:06:39 pm
content: https://octopart.com/455-0020-deltron-802595Good to see that Farnell think we in the UK are mugs, yes, in the UK because Newark (same company?) are as reasonable as anyone else. Funny as i had an email at work from our so called Farnell rep reckoning that he could give us discounts if we went through him for a limited time period, I politely told him to go and screw himself as any discount would probably not offset the hassle of dealing with them, looks like my guess was more spot on than I realised.
Shaking the Saturn 500F - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: September 29, 2018, 03:39:40 pm
content: Before watching the video I was imagining some sort of of complex hydraulically controlled test jig.Apollo never ceases to amaze 50 years +

author: Simon
author_rank: Unknown
timestamp: September 29, 2018, 08:41:33 pm
content: Not sure why you thought this belonged in the test equipment section. If you have to post unrelated material please at least pick the most relevant section. As for the channel it looks like a duplication of existing channels. 2 minutes to tell me that shake tests were done by hand, wow I hope she does not plan getting into anything too detailed.

author: Homer J Simpson
author_rank: Super Contributor
timestamp: September 29, 2018, 09:18:15 pm
content: My mistake posting. Thanks for moving..K
HOLY SMOKE !? - Now I have a button - SAFETY in a EE bench - Page 1
Forum section: electronics / general

author: Zucca
author_rank: Unknown
timestamp: September 29, 2018, 08:15:44 am
content: Designed to power off the entire bench by disconnecting a relais. User the toner transfer method for the first time... not bad but a lot of work. I will use in the future sticker paper.I like it.What you guys have as "safety" on your bench beside brain?PS: I was shocked to discover that Solidworks has not a mirrored Text option... at least in sketch. I had to do the text with pussy power point.

author: German_EE
author_rank: Super Contributor
timestamp: September 29, 2018, 08:25:55 am
content: I have an RCD at one end of the bench and everyone knows to press the yellow 'test' button in case of trouble. That kills everything.

author: onesixright
author_rank: Frequent Contributor
timestamp: September 29, 2018, 08:27:22 am
content: // OTLove the Metcals Sent from my X using Tapatalk

author: GreyWoolfe
author_rank: Unknown
timestamp: September 29, 2018, 12:46:44 pm
content: Quote from: onesixright on September 29, 2018, 08:27:22 am
Pocket beagle and the phy issue - Page 1
Forum section: electronics / general

author: calexanian
author_rank: Super Contributor
timestamp: October 05, 2018, 06:00:09 pm
content: Does anybody know if the pocket beagle has the same PHY issue the beaglebone black did or is it not a problem on that board? Also any other things I should know about pocket beagle? Picking a board for a small scale deployment or a telemetry system using as much off the shelf as I can. Probably using it with a hologram Nova or equivalent.

author: tsman
author_rank: Frequent Contributor
timestamp: October 05, 2018, 06:14:34 pm
content: The PocketBeagle doesn't have built-in Ethernet. The SoC has an Ethernet MAC but it isn't brought out to any of the PocketBeagle I/O pins so you can't connect a PHY. The mikroBus Click boards they recommend are a Microchip MAC+PHY which only does 10BASE-T or a WIZnet MAC+PHY that does 10/100BASE-T but implements its own TCP/IP stack. Both are SPI connected.

author: calexanian
author_rank: Super Contributor
timestamp: October 05, 2018, 06:40:21 pm
content: Ok. For simplicity I may stay Radpberry pi as all we have to do is plug in Ethernet, find Wi-Fi, or use a usb cell modem to find internet.
Why does this Tesla Coil make a low frequency thump sound instead of a spark. - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: September 29, 2018, 02:04:37 pm
content: Well? I also like the single shot nature of those bolts.https://youtu.be/qswbitjxn9Uhttps://youtu.be/EnHGA_T4Y0Y

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 29, 2018, 02:10:30 pm
content: Presumably because he's driving it in short bursts.Appropriate poster in the background there \m/Tim

author: Cyberdragon
author_rank: Super Contributor
timestamp: September 29, 2018, 06:42:47 pm
content: That's just a standard pulsed tesla coil. There are plenty of plans for those on the net.

author: Brumby
author_rank: Unknown
timestamp: September 30, 2018, 05:19:13 am
content: Listening to the first one, it would seem I am hearing the variations of amplitude, frequency and duty cycle of a square wave...(I've not played with Tesla coils.)