hybridfree/eevblog-posts huggingface dataset:
Hashgraph - Page 1
Forum section: electronics / general

author: djsb
author_rank: Super Contributor
timestamp: December 24, 2017, 04:55:23 pm
content: In my efforts to try and understand Bitcoin I came across Hashgraph.It's explained here by Leemon Baird who has patented itand hereand hereI just thought I'd share this information if it proves to be helpful. I do NOT own ANY cryptocurrencies. Just thought I'd do some research into what all the fuss was about.

author: Halcyon
author_rank: Unknown
timestamp: December 25, 2017, 01:56:09 am
content: Pretty much the only thing anyone needs to understand about Bitcoin is that it's averyhigh risk "investment". It's also pretty useless as a currency (crypto or otherwise) compared to some of the alternatives.Yes, there have been many people who have made a huge amount of money through Bitcoin, but those thinking they can jump on-board today and replicate their success are kidding themselves.Now, I don't pretend to be an expert when it comes to finance, stock markets or trading crypto, but some fundamental issues scream at me not to touch Bitcoin with a bargepole. Pretty much the only reason Bitcoin has increased in popularity this year is due to hype created by the media. That is not a good enough reason to pour money into Bitcoin or its derivatives.

author: BrianHG
author_rank: Super Contributor
timestamp: December 25, 2017, 03:55:05 am
content: If you invested in bitcoin back in 2009/2010, it's just about time to cash in before the POP!Buying in today wont give you anywhere near the same returns.

author: rrinker
author_rank: Super Contributor
timestamp: December 25, 2017, 03:58:20 am
content: It's like any other investment - by the time the 'experts' are telling you to invest, it's far too late - they've made their money and are just hoping to get a little extra by stirring up a buy frenzy just before they cash out for good.
pssst... - Page 1
Forum section: electronics / general

author: hwj-d
author_rank: Frequent Contributor
timestamp: December 24, 2017, 09:34:11 pm
content: tap tap taaap ... lookin arround ... ...I wish you ALL a Merry Christmas

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: December 24, 2017, 10:25:08 pm
content: Danke!

author: Gyro
author_rank: Super Contributor
timestamp: December 24, 2017, 10:28:34 pm
content: I was wondering who would be first...A Merry Christmas to all here.

author: grumpydoc
author_rank: Super Contributor
timestamp: December 24, 2017, 10:34:54 pm
content: Slightly early here in UTC+0 land but here's wishing everyone the best whether you celebrate religious festivals at this time of year or not!

author: Lightages
author_rank: Unknown
timestamp: December 24, 2017, 10:50:41 pm
content: Thank you.FYI, Christmas was originally the celebration of the winter solstice and the "Christmas" tree was a pagan tradition. I enjoy this time of year because it brings people together rather than tearing them apart. I also hope all have a happy winter solstice and that everyone has a safe and happy time.

author: grumpydoc
author_rank: Super Contributor
timestamp: December 24, 2017, 11:01:06 pm
content: Quote from: Lightages on December 24, 2017, 10:50:41 pmA likely predecessor was the Roman "Saturnalia" but I suspect that we have been marking the Solstice in one way or another for a very long time.

author: hwj-d
author_rank: Frequent Contributor
timestamp: December 25, 2017, 01:30:56 am
content: Quote from: Lightages on December 24, 2017, 10:50:41 pmYes, in this sense, everyone, as he likes peace with each other

author: Rick Law
author_rank: Super Contributor
timestamp: December 25, 2017, 02:34:32 am
content: It doesn't matter how it originated, it only matters what we make of it.Today, we consider Christmas a season to be charitable, to be kind, to share with others your joy, and to "do good" so as peace and joy come more frequent in the days to come.I am non-religious. To me Christian or not really doesn't matter. I liken it to a neighbor celebrating a new grand child. It has nothing to do with me, I haven't seen the kid and likely never will. But, I share their joy, I celebrate with them and wish them best.I use this occasion to wish everyone a Merry Christmas. I wish all a joyful time now, and more joy to come. If you believe, great. If not, we all know laughter and joy are contagious - nothing wrong with spreading it so everyone having a joyful time.
yokogawa 3023 - Page 1
Forum section: electronics / general

author: Zfrenchy
author_rank: Contributor
timestamp: December 24, 2017, 10:36:52 pm
content: hello everyone,I am not sure it is the right location in the forum to post this.Anyway, I trying to fix a X/Y recorder YOKOGAWA model 3023, I am looking for any doc about it, operating manual, service manual, schematics ...thx
Quick Question about Amplifiers  - Page 1
Forum section: electronics / general

author: mzdenkov
author_rank: Regular Contributor
timestamp: December 24, 2017, 03:10:43 pm
content: Here i am, cleaning red nail-polish after night of heavy drinking and wondering about amplifiers.I know that his method on picture was invented by Toshiba(it was told to me by professor at my uni). But i still don't quite get it.Look at the schematic on the pic.How on earth do i(or amplifier, not me) model driving this BD power transistor by " Quick Maths "... ?I know that Its simple Push-Pull method, but when you put OP amp like this, it confuses me so much.Please explain how this work... using simple words, links, idk.Happy Holidays to you all.

author: Zero999
author_rank: Super Contributor
timestamp: December 24, 2017, 06:04:37 pm
content: The key to understanding the circuit is to look at the internal workings of the amplifier IC. Exactly the same topology can be used to boost the power output of an op-amp. Check out the thread linked below:https://www.eevblog.com/forum/beginners/non-standard-op-amp-configuration/

author: mzdenkov
author_rank: Regular Contributor
timestamp: December 24, 2017, 06:47:19 pm
content: Thank you so much.Best Regards

author: David Hess
author_rank: Super Contributor
timestamp: December 24, 2017, 09:01:29 pm
content: Quote from: mzdenkov on December 24, 2017, 03:10:43 pmTektronix did it back in 1979 with the 741 operational amplifier if not earlier and National Semiconductor application note 29 published in December of 1969 demonstrated the idea as shown below. With the proper feedback into the output pin, current feedback like performance is possible with a voltage feedback amplifier.QuoteThe operational amplifier's output current is sourced from its power pins. If the output current plus the small quiescent current through the base-emitter shunts resistors exceeds Vbe of the transistors, then they conduct pulling the output up or down with higher current than the operational amplifier by itself can provide.
The best SPAM mail I ever got! - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: December 18, 2017, 10:43:35 am
content: From my SPAM folder today:Quote...from a hotmail email account ofcourse. Sounds legit, where do I sign up?

author: Electro Detective
author_rank: Super Contributor
timestamp: December 18, 2017, 11:19:40 am
content: Quote from: daqq on December 18, 2017, 10:43:35 amIf you get the position and need a driver and the money is good, keep me in mind please, discretion guaranteed...

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: December 19, 2017, 01:44:11 am
content: To activate your membership code, you'll first have to complete a pilgrimage to Ingolstadt walking backwards while driving a herd of cats in close order (and in conformance to the Stassenverkehrsordnung).VIEL SPASS!

author: Macbeth
author_rank: Super Contributor
timestamp: December 19, 2017, 02:02:16 am
content: I am already one of the Illuminati. It cost me $11,000.00 USD in commission but that is a drop in the ocean while I wait for my remaining $989,000.00 USD...

author: Ampera
author_rank: Super Contributor
timestamp: December 19, 2017, 03:24:59 am
content: Ah, the Illuminati, the Italian order of lamp makers.

author: Brumby
author_rank: Unknown
timestamp: December 19, 2017, 07:38:06 am
content: I couldn't hold a candle to them.

author: Electro Detective
author_rank: Super Contributor
timestamp: December 19, 2017, 09:26:55 am
content: I'll bet the lodge is in Nigeria

author: daqq
author_rank: Super Contributor
timestamp: December 20, 2017, 03:08:15 pm
content: QuoteI was thinking more along the lines of robot drivers/body guards/assassins/espresso machines...

author: SeanB
author_rank: Super Contributor
timestamp: December 20, 2017, 05:01:13 pm
content: Quote from: Electro Detective on December 19, 2017, 09:26:55 amNope, here in South Africa, judging from the number of signs that are plastered all over every single surface around, in various colours and assorted types of decay.

author: Electro Detective
author_rank: Super Contributor
timestamp: December 24, 2017, 10:26:22 am
content: ok then, if the illuminutties pay well I'll have to move to South Africa,service their espresso machinesmake awesome latte for the hired help in the limoas they head off to wack the competitionand if the MIC espresso machines give me drama, there's always EEVblog forum to fall back on for repair tips
There is a new Turbo Encabulator - Page 1
Forum section: electronics / general

author: calexanian
author_rank: Super Contributor
timestamp: December 20, 2017, 07:19:19 pm
content: There is a new Turbo Encabulator, and its glorious! Watch to the end. That's where it gets really good.History of the Encabulator

author: calexanian
author_rank: Super Contributor
timestamp: December 20, 2017, 07:27:36 pm
content: Oops. Forgot to include the new one!

author: IanB
author_rank: Super Contributor
timestamp: December 20, 2017, 07:28:39 pm
content: Quote from: calexanian on December 20, 2017, 07:19:19 pmI'm confused. Where's the new one?

author: calexanian
author_rank: Super Contributor
timestamp: December 20, 2017, 08:02:04 pm
content: Quote from: IanB on December 20, 2017, 07:28:39 pmSorry about that. go to the third video. It is over a year old, but for most people they remember the previous generations.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 20, 2017, 11:35:11 pm
content: A nice attempt, but not as well acted or written as the original; more a fan tribute, a reference. Ah well.Tim

author: Red Squirrel
author_rank: Super Contributor
timestamp: December 21, 2017, 06:40:59 am
content: Haha seen that one before. The Rockwell one is pretty good too.Must be so hard to do these with a straight face lol.

author: TerraHertz
author_rank: Super Contributor
timestamp: December 21, 2017, 07:05:07 am
content: Quote from: Red Squirrel on December 21, 2017, 06:40:59 amProbably an entry-level bullsh*t tolerance test for salesmen. Narrate the script without the slightest snicker, or you fail out of the course.Not as hard a trial by guffaw as these guys faced. Supposedly the temp actors hired to play centurions were told they would not be paid, if they laughed during the sketch.

author: Moshly
author_rank: Regular Contributor
timestamp: December 21, 2017, 09:19:03 am
content: And then you get the Science based ones ->

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 21, 2017, 11:01:58 am
content: Which the Simpsons double-satirized;Tim

author: German_EE
author_rank: Super Contributor
timestamp: December 22, 2017, 06:29:50 pm
content: Chemists have been at this for years, look up a substance called 'thiotimoline' if you don't believe me.

author: hagster
author_rank: Frequent Contributor
timestamp: December 23, 2017, 07:58:04 am
content: I cant even remember what we did before they invented the Plumbus.https://youtu.be/eMJk4y9NGvEThe new PlumbusX is great, but honeslty I have no need for a wireless floob. Its just a gimmick.https://youtu.be/JGaBU5cKluUThese days I just build my own.https://youtu.be/sAEWFk7HTmY
Tektronix Oscilloscope Model 2235 AN/USM-488 Repair and calibration - Page 1
Forum section: electronics / general

author: jcrubin
author_rank: Frequent Contributor
timestamp: November 10, 2017, 07:29:49 pm
content: This dual channel 100 MHZ oscilloscope has been broken for over two years and i've finally had the time to go hand over hand to isolate the problem that started after it succumbed to a fire that I reported here several years ago due to a failed across-the-line X capacitor. This is the beginning of the series.Part 1

author: jcrubin
author_rank: Frequent Contributor
timestamp: November 17, 2017, 01:21:10 pm
content: Part 2 of 7

author: jcrubin
author_rank: Frequent Contributor
timestamp: November 24, 2017, 07:38:27 pm
content: Part 3 of 7

author: GreyWoolfe
author_rank: Unknown
timestamp: November 25, 2017, 01:02:20 am
content: so far.

author: jcrubin
author_rank: Frequent Contributor
timestamp: December 01, 2017, 12:52:29 pm
content: Part 4 of 7

author: jcrubin
author_rank: Frequent Contributor
timestamp: December 08, 2017, 01:04:53 pm
content: Part 5 of 7

author: jcrubin
author_rank: Frequent Contributor
timestamp: December 15, 2017, 01:37:32 pm
content: Part 6 of 7

author: jcrubin
author_rank: Frequent Contributor
timestamp: December 22, 2017, 12:55:17 pm
content: Part 7 of 7
CSIRAC or CSIR Mk 1 Australia's first digital computer & the first to play music - Page 1
Forum section: electronics / general

author: jonovid
author_rank: Super Contributor
timestamp: December 22, 2017, 11:12:56 am
content: CSIRAC, designed and built by CSIR scientists, was the first stored-memory electronic computer in Australia.CSIRAC – The first computer to play musicthe oldest surviving first-generation electronic computerShould the EEVblog forum have a dedicated "Vintage Computing" section?https://www.eevblog.com/forum/vintage-computing/forum-topics-suggestion/msg1266278/#msg1266278CSIRAC : Worlds first digital computer to generate music in realtime from code (1950)also posted CSIRAC as a suggestion for a EEVDiscover videoshould Dave post a video about this?
Any help with Wine on Arch Linux? - Page 1
Forum section: electronics / general

author: Ampera
author_rank: Super Contributor
timestamp: December 22, 2017, 06:55:08 am
content: I'm currently having a problem with Wine on Arch Linux. I have installed packages wine wine-mono wine_gecko and winetricks as well as the lib32 version of my graphics driver.The issue I am having is a bunch of applications are rendering the contents of the frame black. Even the mouse disappears when it enters the frame. (See picture)This seems to happen to most installers, as well as some applications like Steam. Applications like Notepad++ have worked, as well as all the other included applications with Wine that I have tried (like regedit). I have no clue why it's doing this, so I am wondering if anybody could help me. Wine reports nothing odd in console while running this, and all the buttons are usable with the keyboard when the window is open, I just can't see anything.Thanks for any possible help.

author: alexanderbrevig
author_rank: Frequent Contributor
timestamp: December 22, 2017, 07:35:01 am
content: Could you post yourglxinfo32andpacman -Qi wine?

author: Ampera
author_rank: Super Contributor
timestamp: December 22, 2017, 07:38:18 am
content: Quote from: alexanderbrevig on December 22, 2017, 07:35:01 amI don't appear to have whatever package glxinfo32 is a part of, If you can suggest what package that is i can get back to you on that one.Here is the stuff out of pacman though:https://pastebin.com/DTnDXWJm

author: Ampera
author_rank: Super Contributor
timestamp: December 22, 2017, 07:46:09 am
content: Ah, solution. Not sure which one did it, but I noticed some "optional" dependencies weren't installed. I installed most of them. That fixed it.

author: alexanderbrevig
author_rank: Frequent Contributor
timestamp: December 22, 2017, 08:24:23 am
content: Excellent!
Power outage cripples Atlanta's Hartsfield-Jackson airport  - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: December 17, 2017, 08:48:18 pm
content: Not a very good backup system in place.............http://www.cnn.com/2017/12/17/us/atlanta-airport-power-outage/index.html

author: alanb
author_rank: Frequent Contributor
timestamp: December 18, 2017, 10:56:18 am
content: Not Uniquehttps://www.bloomberg.com/news/articles/2017-06-06/british-airways-points-to-human-error-for-may-flight-outage

author: jonovid
author_rank: Super Contributor
timestamp: December 18, 2017, 11:57:34 am
content: let me guess, it has something to do with weather based electricity generation technology and a lack of baseload or tesla batteries!

author: ez24
author_rank: Super Contributor
timestamp: December 19, 2017, 04:10:06 am
content: Rats

author: BradC
author_rank: Super Contributor
timestamp: December 19, 2017, 04:43:54 am
content: Quote from: jonovid on December 18, 2017, 11:57:34 amAs much as we all love to point and laugh when the inevitable happens to poorly thought out renewable power installations, making the same tired joke anytime *any* power outage happens doesn't help the cause, it just starts to look like a rabid anti-renewable campaign.In this instance it wasn't remotely related, and was instead one of those single point of multiple failures in a redundant system. Rather than a joke it's a pretty good lesson.

author: ez24
author_rank: Super Contributor
timestamp: December 19, 2017, 05:04:47 am
content: Someone being interviewed about this said it looks like rats chewed through some cables (they were frayed). ie rats (the animal) did this.Like someone said speed caused the train wreak.Both are just the first opinions by someone being interviewed (not the public). In my experience most are correct.So for today's news it was rats and speed. I gotta go now and try and catch one.

author: TimFox
author_rank: Super Contributor
timestamp: December 19, 2017, 07:44:12 pm
content: Apparently, the problem was that the switches to switch over to backup power were located in the same region where the fire took out the main power distribution switches. My guess is that the system was tested by checking that the switch-over to backup worked when activated on a test schedule, without so much fire present.

author: rrinker
author_rank: Super Contributor
timestamp: December 22, 2017, 03:58:18 am
content: This was the real cause
Identify part please - Page 1
Forum section: electronics / general

author: snipersquad100
author_rank: Frequent Contributor
timestamp: December 21, 2017, 01:20:14 pm
content: Can someone tell me what the coax connector type is? and point me where I can get an extension cable.Thanks

author: RobK_NL
author_rank: Frequent Contributor
timestamp: December 21, 2017, 01:48:10 pm
content: Without having direct access to verify, I would say it'sU.FL.I couldn't say if extension cables exist for this type. Adapter cables, yes.

author: snipersquad100
author_rank: Frequent Contributor
timestamp: December 21, 2017, 02:07:43 pm
content: Thank you
Need Help with Electronics Artwork - Page 1
Forum section: electronics / general

author: Tedro
author_rank: Unknown
timestamp: December 19, 2017, 05:54:22 pm
content: Gentlemen! I need some creative help with some art work to be done up this week. I have an idea on what I want but looking for suggestions on or input on how it should be made. I found a great artist down the street from me and has done some very interesting work but came up with the idea of using electronic components, circuits and diagrams to make some sort of canvas. I am heavy into electronics but not very creative, he is very creative but knows nothing about electronics but has a idea of what he wants to do but wants my guidance on what to do. Can anybody suggest some circuits, circuit diagrams and or PCB layouts that we can work off? He wants to have something that he can study and tell people what it is, not just random stuff. I am not creative enough to pick something out and not sure what to use or make. I am heaving into audio circuits and stuff. Discreet opamps? Power amplifiers? Digital to analog, analog to digital? I can also go with something classic like the 6502 or the z80 platform as well. I am open to suggestions.ThanksTedFake edit:That is all.

author: Mr. Scram
author_rank: Super Contributor
timestamp: December 19, 2017, 05:56:02 pm
content: I'd suggest going with a few classics, maybe even a remix of them. That should amuse and entertain people who know what they're looking at, and function equally well for people who don't.

author: Tedro
author_rank: Unknown
timestamp: December 19, 2017, 06:17:40 pm
content: Quote from: Mr. Scram on December 19, 2017, 05:56:02 pmWhat did you have in mind? I just don't know what to use, I have a lot to work with but want something that someone can figure out if they are smart enough. Hell I would go with the classic 555 timer circuit but that's to simple and not big enough.

author: Cyberdragon
author_rank: Super Contributor
timestamp: December 19, 2017, 07:45:59 pm
content: Ideas:Transistor clock8-bit computer4 function logic chip calculatorAM/FM tansistor radioIt seems you want it with the parts placed over their symbols on the schematic? Keep it single or double sided then.

author: Mr. Scram
author_rank: Super Contributor
timestamp: December 19, 2017, 07:49:08 pm
content: Yeah, the 555 came to mind. You could incorporate it into something else.I kind of like the transistor or discrete logic clock idea too. If you look at Dave's clock video, with the clock he made decades ago, you see it's actually quite easily explained to even a layman.

author: Tedro
author_rank: Unknown
timestamp: December 19, 2017, 08:03:48 pm
content: Quote from: Cyberdragon on December 19, 2017, 07:45:59 pmI am leaning more to a PCB layout so I don't have to specify any part or symbol. It will be single sided.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 20, 2017, 02:02:29 am
content: The prettiest circuit I know of:Tim

author: Kilo Tango
author_rank: Regular Contributor
timestamp: December 21, 2017, 08:10:00 pm
content: Try goggling "statue made from electronic components" lots of examples there.Ken
High Quality HDMI Cable - Audiophoolery - Page 1
Forum section: electronics / general

author: rstofer
author_rank: Super Contributor
timestamp: December 21, 2017, 02:17:55 am
content: https://www.amazon.com/dp/B003CT08E4/ref=dra_a_ms_bb_hn_xx_P3159_100I tend to buy the $7 cables...

author: xrunner
author_rank: Super Contributor
timestamp: December 21, 2017, 02:24:35 am
content: "Diamond HDMI incorporates AudioQuest’s highest-performance, lowest-distortion Perfect-Surface Silver conductors. Silver is known for its high conductivity and its “colorless” sonic presentation. Perfect-Surface Technology applied to extreme-purity silver provides unprecedented clarity and dynamic contrast. Solid conductors prevent strand interaction, a major source of cable distortion. Extremely high-purity Perfect-Surface Silver minimizes distortion caused by the grain boundaries that exist within any metal conductor, nearly eliminating harshness and greatly increasing clarity compared to OFHC, OCC, 8N and other coppers. "https://www.amazon.com/dp/B003CT08E4/ref=dra_a_ms_bb_hn_xx_P3159_100

author: rdl
author_rank: Super Contributor
timestamp: December 21, 2017, 02:48:13 am
content: Believe it or not, AudioQuest used to be known for their economical "audiophile quality" connectors. I have some AudioQuest speaker wires that cost less than $100 (okay, itwasmany years ago).Some of those Amazon customer reviews are pretty funny.

author: edpalmer42
author_rank: Super Contributor
timestamp: December 21, 2017, 03:49:59 am
content: Quote from: rdl on December 21, 2017, 02:48:13 amI thought you meant they're funny because they're so stupid. Wrong! They're brilliant! They're the kind of comments that EEVBlog trolls would post!

author: Ampera
author_rank: Super Contributor
timestamp: December 21, 2017, 05:00:45 am
content: "The cable is so good it supports the transmission of 0s, 1s, AND 2s."Hey, at least they are bothering to spend it on at least some more high quality parts instead of sand and good feelings.
Facebook to notify people when a picture of their face is uploaded -anywhere.  - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: December 24, 2017, 03:51:12 pm
content: In a press release Facebook said that it was making the feature available to allow people who upload a emplate of their faces to protect their privacy.They say they thought some people would want to be notified of pictures they might not otherwise know about.However, they wont notify those in Canada and the European Union.Privacy laws are generally stricter in those jurisdictions, though they said they were hopeful about implementing the feature there in the future.If one opts in, Facebook generates what it calls a template of a person’s facial geometry by analyzing pixels from photos where the person is already tagged.It then compares newly uploaded images to the template.Under the new feature, people who have opted in would get a notification from Facebook if a photo of them has been uploaded, although only if the photo is one they have access to.
What FedEx or UPS surcharges for Mouser orders to Canada? - Page 1
Forum section: electronics / general

author: rbm
author_rank: Regular Contributor
timestamp: December 18, 2017, 07:56:07 pm
content: I usually order from DigiKey but parts I'm after are backordered with them, so I found the same part at Mouser. I live in Canada. I know that Mouser only ships from their USA warehouse in Texas so, if I order the parts and select free shipping with either FedEx or UPS, what additional import charges can I come to expect? GST obviously, but what about import duties orUPS extortionbrokerage fees? Any experiences or surprises from other Canadians?

author: macboy
author_rank: Super Contributor
timestamp: December 18, 2017, 08:58:36 pm
content: It depends on whether you choose to pay in CAD or USD. In either case the threshold for free shipping is $100 (CAD or USD respectively).If you pay in CAD, you never pay duties or fees, everything is rolled into the price.If you can pay in USD, youmaybe responsible for duties and/or associated fees. The one and only time I tried this I paid nothing. I ended up saving money because the prices were lower (after exchanging USD<>CAD).

author: packetbob
author_rank: Contributor
timestamp: December 19, 2017, 03:43:10 am
content: Be aware that if you want to avoid customs/brokerage fees when ordering from Digikey or Mouser to Canada you must use the Canadian web sites:https://ca.mouser.com/https://www.digikey.ca/With either of these you don't pay any duty or brokerage feesIf you use the US sites then you will probably end up with such fees.......

author: rbm
author_rank: Regular Contributor
timestamp: December 19, 2017, 10:42:57 pm
content: Thanks for the replies. I ordered the parts yesterday (from the Canadian Mouser site) and selected FedEx for the shipping. It arrived today. No surprises in store for me, which was EXCELLENT!
Mobile theme trouble - Page 1
Forum section: electronics / general

author: kosthala
author_rank: Newbie
timestamp: December 19, 2017, 08:14:17 pm
content: Hi,I applied the mobile theme to my desktop computer and now i can't go back to the classic theme.I have delete cookies, i have uninstall all extensions, i have changed my browser, but nothing helps.In my profile menu there is no more the option "Look and Layout".Also the button "Go to full site" does nothing.If i logout, then the classic theme is back, but as soon as i login again, the mobile theme comes back.Can any one help?
How hard would this project be? External Rumble Haptic PACK for gun controllers. - Page 1
Forum section: electronics / general

author: Radioboy86
author_rank: Newbie
timestamp: December 19, 2017, 06:55:36 pm
content: I have a wii gun that has it's own little vibration motor. It engages the rumble with trigger pulls. I want to gut this out and make an external pack for adding onto my ps move controllers and some other gun controllers I have. Rumble is not good enough. I have found you can buy 12v rumble/haptic feedback motors and solenoids. I want to make a nice recoil/rumble pack that can be powered externally with 12v. The wii gun uses AAA batteries, X2 of them. Where do I start guys? This is my first DIY project. It sounds pretty simple right? I have no experience with anything like this. I just hate having to think the only way to get good haptic vibration gun controllers... Is to pay $500-3000 for other units. Solenoids and strong motors are cheap. I know I can make this happen. I just need some help on what I need to buy and how to wire it up. thanks!
Problems with Blog Search Function - Page 1
Forum section: electronics / general

author: nicalitz
author_rank: Regular Contributor
timestamp: December 18, 2017, 04:27:33 pm
content: Hi All,Not sure if I'm doing something wrong or just being an idiot, but I can't seem to get the blog search function to work properly.If I use the search function from the tab above (next to help), it shows me the first 50 results correctly, but when I click on any other page (page 2 onwards) all search results disappear (see imaged attached). When I use the search function in the top right corner, it doesn't even show the first page, just zero results.Even tried on different browsers, same results. Am I doing something stupid?

author: nicalitz
author_rank: Regular Contributor
timestamp: December 19, 2017, 09:01:58 am
content: Allow me to bump this.Am I the only one struggling with the search function? Any confirmation would be appreciated.Its a lot more difficult to navigate the blog if I can only access a small portion of search results.

author: tautech
author_rank: Super Contributor
timestamp: December 19, 2017, 09:12:23 am
content: Use "Advanced Search", then you can define boards to search and/or posted by whom.Not long ago the UI for search looked just as Advanced does now but Dave must've compacted it.His server admin gniff changed a lot of things so that Search works better now than it did before.

author: nicalitz
author_rank: Regular Contributor
timestamp: December 19, 2017, 10:55:27 am
content: thanks for the suggestions. i've been using google up to now, but i prefer the layout and structure of the blog's search results.is this an issue that only affects certain accounts/members? does it usually resolve by itself, or are there steps that one might take to fix the issue?
MCU/MPU with HSUSB and Ethernet recommendation needed - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: December 09, 2017, 09:37:00 am
content: I'm working on an audio design that involves a digital subsystem with the following needed:1. USB 2.0 HS (480Mbps), USB audio class 2.0 device support.2. Ethernet support, WiFi/BT are optional, if they come free, I will take it. If not, I won't miss it.3. Ethernet protocol with at least UDP, WINS and supporting IP/ARP/RARP.4. Enough processing power, looking at 400 32-bit MMACS with modulus addressing (FIR), the modulus addressing part can be replaced with banked linear addressing.5. Fast SPI, SDI, QSPI, parallel port or whatever interface that can dump at least 100Mb/s to an FPGA.6. SPDIF receiving up to 24/192.7. 4 bi-quad sigma delta modulation (similar to IIR) at 12.288Msps, dual channel.So far, I'm using ESP32 (Ethernet/WiFi/BT)+ADSP-BF706 (DSP, USBHS)+iCE40 (SPDIF MUX+receiving) combination, but there are 2 problems with this combination:1. I don't know how well ESP32 will be supported in a long run -- will be be still available in 5 years? High end audio is a low volume, high profit, R&D intensive business, and a redesign due to unable to source components is unacceptable.2. Multichip solution involves collaboration between chips, which may cause CPU overhead and is fundamentally not elegant.Here I have an alternative: iMX6ULL+RAMPros: Single chip for all computing needs, plus native float support, and long term availability. With SPDIF receiver, Ethernet controller and dual USB HS built in.Cons: Practically must run Linux, realtime performance not guaranteed, ALSA driver must be GPLed (so I need to mmap incoming data to user space, process with closed-source DSP code, and mmap to kernel). Also, it takes ~5 seconds to boot with my best optimization: minimal uboot, minimal kernel, no sysvinit/systemd (app is init), while ESP32 boots instantly.So, can anyone give me a suggestion on whether should I use ESP32+DSP+FPGA or should I use iMX6+RAM solution? I have spent some time on both -- I have virtually all BF706 firmware done, but I have not started working on ESP32 yet, not on FPGA, though I can reuse my old AES RX IP. On the other hand, I've been working on iMX6ULL yocto also for a while and was able to reduce boot time to 5 seconds. I think with more in-depth modification on u-boot and kernel, I can reduce that to <3 seconds.

author: mac.6
author_rank: Regular Contributor
timestamp: December 21, 2017, 08:50:36 am
content: i.MX RT? pretty much same peripheral as i.MX6ull but no linux required.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: December 21, 2017, 09:32:22 am
content: PIC32MZ may be worth a look - covers most if not all of your I/O requirements and doesn't need Linux.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: December 21, 2017, 10:02:59 am
content: Maybe an MCU for all the I/O, and FPGA/DSP for the maths.
bitcoin to paypay  - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: December 18, 2017, 09:20:02 am
content: is there any sites out there to convert bitcoin to paypal moneyor how can i quickly sell it when i do a google btc to usd says its $38 i don't even care if i get $10usd for it i just have no use for itwhat can i do

author: Halcyon
author_rank: Unknown
timestamp: December 18, 2017, 09:22:11 am
content: Most brokers will allow you to cash it out directly into your bank account. For example, I trade with BTC Markets in Australia which allows me to transfer directly to/from my Australian bank account.

author: sleemanj
author_rank: Super Contributor
timestamp: December 18, 2017, 09:53:09 am
content: Post to reddit /r/NZBitcoin somebody will probably pay you NZ$ for what you haveCurrently 1 Bitcoin is "worth" 27 Thousand NZ Dollars

author: mariush
author_rank: Super Contributor
timestamp: December 18, 2017, 02:12:50 pm
content: Hold on to that moneyCurrently, transaction fees for Bitcoin are very high. You may pay up to 10-20$ (worth of bitcoin) in transfer fees just to get your transaction going through the network.Unless you have at least a few hundred dollars worth of bitcoin, it's probably not worth trying to cash it out.If you want to make some "quick" money, I'd suggest mining for Ethereum or Ethereum Classic using your video card (if you have a relatively modern video card), pool websites like etheremine.org will transfer the coins to your wallet once you produce at least 0.1 ETH or 0.5 ETC and then you can exchange those to cash at various websites with minimal fees (< 0.3$ transaction fee will for Ethereum most of the day)You have instructions on how to mine directly on the website, checkhttps://ethermine.org/- create a wallet first and then use that wallet address in the miner software and on the website (to check your progress)
SPI FLash - Page 1
Forum section: electronics / general

author: OCBSlimz
author_rank: Contributor
timestamp: December 14, 2017, 11:48:27 pm
content: Can I use this device W25Q64VSIG in the place of GD25Q64BSIG?The clock frequency is slightly higher on GD25Q64BSIGIts for a TV firmware

author: daqq
author_rank: Super Contributor
timestamp: December 15, 2017, 06:48:20 am
content: It should be OK, very few products push the frequency to the limit. That said, if you could check the SPI clock (SCK signal) with a scope, you can check the actual frequency being used.

author: OCBSlimz
author_rank: Contributor
timestamp: December 17, 2017, 08:57:19 pm
content: Confirm it works.
RL-10 Rocket Engine Jan-Mar 1965 - Page 1
Forum section: electronics / general

author: brucehoult
author_rank: Super Contributor
timestamp: December 18, 2017, 11:32:36 am
content: RL10 was a great program and great engine. Versions are still in use today.Go-ahead to first engine firing in 6 months! Prototype delivered in 18 months and production two years after go-ahead.I particularly enjoyed their use in the DC-X in the mid 90's, the first rocket to demonstrate fine throttle control of hovering and propulsive landing in atmosphere, as well as powered manoeuvring and using rockets firing against the direction of travel to slow a craft from near-supersonic speeds. SpaceX probably wouldn't be doing their landings today if it wasn't for the DC-X.DC-X used four RL-10 engines, and had a total program budget of only $60 million.
Cheap soldering iron tip positioning question - Page 1
Forum section: electronics / general

author: kalel
author_rank: Frequent Contributor
timestamp: November 28, 2017, 05:24:37 pm
content: In a cheap uncontrolled/mains soldering iron, does a soldering iron tip have to go all the way down, or is it OK to move it up somewhat, or could that extra empty space inside cause damage to the heater?I'm asking this since I got a cheap (but at least grounded) soldering iron and already have a spare tip of the preferred shape. But that one, unlike the factory one, is shorter, so it can either go all the way down (until it hits some barrier inside) and be short at the outside end, shorter than the original (and heat up faster), or I could position it so that it is as long as the original at the outside, but then there will empty space on the inside - unlike the original longer tip, it would not hit the barrier.Of course, I can just return the original one if this would damage the heater or iron in any way. This iron will be only used occasionally anyway, but I'm curious about this positioning as I don't know the answer.

author: nanofrog
author_rank: Super Contributor
timestamp: November 28, 2017, 05:42:15 pm
content: Screw it all the way down for proper thermal transfer (should bottom out on metal when the threads end, not the heating element).

author: Spooky558
author_rank: Newbie
timestamp: December 17, 2017, 10:41:00 pm
content: Quote from: kalel on November 28, 2017, 05:24:37 pmI got a cheap soldering iron the other week, I used it once to test it, and do a little practise, then the next day I took the tip out to measure it. When I put it back in, I realised that it went further into the iron than it had been, about 6 or 7 mm deeper. I haven't used the iron since then, but wondered why the tip hadn't been fully inserted from brand new. To my mind, having the tip fully inserted means there is a better connection, so the heat will transfer better?

author: nanofrog
author_rank: Super Contributor
timestamp: December 17, 2017, 11:24:33 pm
content: Quote from: Spooky558 on December 17, 2017, 10:41:00 pmYes.

author: Spooky558
author_rank: Newbie
timestamp: December 17, 2017, 11:54:26 pm
content: Thought so, thanks.
What the Fuke? - Page 1
Forum section: electronics / general

author: huskee
author_rank: Newbie
timestamp: December 17, 2017, 12:19:17 pm
content: Wuanhanglo multimeter, costs around 15 euros.

author: tooki
author_rank: Super Contributor
timestamp: December 17, 2017, 03:29:25 pm
content: Documented here long ago, dude.
Another 'weather anomaly' on video - Page 1
Forum section: electronics / general

author: StillTrying
author_rank: Super Contributor
timestamp: December 18, 2017, 01:39:32 pm
content: http://www.mirror.co.uk/news/uk-news/x-files-real-governments-22m-11710516https://www.nytimes.com/2017/12/16/us/politics/pentagon-program-ufo-harry-reid.html
Noise detection? An awkward problem. - Page 1
Forum section: electronics / general

author: Decoman
author_rank: Regular Contributor
timestamp: December 17, 2017, 10:48:36 am
content: I realize that this might be the wrong forum to post and inquire about such technical things as sound and noise related issues, but who knows, maybe someone actually here happen to be somewhat familiar with my issue as explained below. I don't expect many replies, but fell free to chime in if you have an insight or some general comment you think might be relevant here.So I happen to sit here with both my feet so to speak in an awkward situation, where there is apparent noise pollution around me. However the noise does not seem to come from any item inside my apartment, and as the people employed by the land lord by own admission told me they are working on the boiler system in the basement, there has been a noticeable increase in noise the last couple of weeks, which make my suspicions of the water heating system to be blamed for this type of noise I keep hearing, which is very, very annoying.This makes me wonder, how one would could go about measure the noise.There are various interesting aspects to this like:• what direction does the noise come from?• is there a fine pattern to the noise?• does the noise level vary over time?• if the noise is of the type where noise is transmitted by vibrations through an intermediate material, how to detect that?• if excluding simple causes like the noise coming from some other neighbors apartment, could the sound come from the outside?• could residential transformers on the outside even make so much noise that it beams into my apartment?• if the entire ceiling, or wall, or even, walls, resonate, and emitting noise, how does one detect this?• could residential buildings of mostly concrete have eigen frequency issues, sort of like what a badly constructed bridge might have?• could I maybe try create an audio recording, with some modest means? What kind of equipment might be useful for recording some noise perceived to be similar to 110 Hz like noise?• can noise even propagate strongly through double or triple plated glass into my apartment from the outside? Yet, no noise heard on the outside.I have for some time done some diagnostics, or tried to anyway:• the simplest way, and I think the most sensible thing, was to cut the power in my fuse box, and the noise is still there• before that, I had to remove individual sources of noise, to try isolate the noise after that (which proved impossible)• talking to neighbors• looking for suspicious installments in the basement, with machinery/electronics that emit noise (and maybe that is the cause of the noise some five floors further up the building)Now, I have tried to get some help regarding this, but that is another story. The piped water heating system is a known cause of noise, but the other types of noise directly found on the pipes have either been fixed, or is simply very limited in scope and to be ignored, because of the noise is brief and circumstantial.
Beginners, Repair, Metrology, General Chat, etc.   --  What are these called? - Page 1
Forum section: electronics / general

author: ez24
author_rank: Super Contributor
timestamp: December 17, 2017, 01:51:59 am
content: If you look at the home page of this forumhttps://www.eevblog.com/forum/index.phpyou see:ElectronicsBeginnersProjects, Designs, and Technical StuffRepair..ProductsTest EquipmentThermal ImagingOther Equipment & Products..What would Products be called? Heading, Title, Topic, Subject etc ?What would Test Equipment be called? Heading, Sub-Heading, Title, Sub-Heading, Sub-Heading etc ?The reason is I would like to suggest a new xxx called "Training", but I do not know what to call it.Sorry for the seemingly stupid question.thanks

author: xrunner
author_rank: Super Contributor
timestamp: December 17, 2017, 01:59:28 am
content: SMF calls these areas "Category" ...

author: ez24
author_rank: Super Contributor
timestamp: December 17, 2017, 02:21:44 am
content: Quote from: xrunner on December 17, 2017, 01:59:28 amHa ha I missed it totally.Just wonder what SMF has to do with this.Sacramento International Airport (SMF)Would the top level be called Category and one under it be called Sub-Category?thanks

author: xrunner
author_rank: Super Contributor
timestamp: December 17, 2017, 02:27:23 am
content: Quote from: ez24 on December 17, 2017, 02:21:44 amSimple Machines Forum -https://www.simplemachines.org/QuoteThere are only categories and boards, but there can be child boards of main boards.CategoryBoardChild Board

author: ez24
author_rank: Super Contributor
timestamp: December 17, 2017, 02:36:36 am
content: Quote from: xrunner on December 17, 2017, 02:27:23 amThank you very much

author: xrunner
author_rank: Super Contributor
timestamp: December 17, 2017, 02:40:24 am
content: Quote from: ez24 on December 17, 2017, 01:51:59 amBe looking for your post on this suggestion then.
My band just released our debut album! Assimilate - Apex Genesis - Page 1
Forum section: electronics / general

author: alexanderbrevig
author_rank: Frequent Contributor
timestamp: December 22, 2017, 07:22:28 am
content: Just can't help myself from sharing it!My band Assimilate just released Apex Genesis. Our modern metal debut album.It's been a long process, but finally it's another project that is done among so many who never gets finishedFull stream on YouTube:I'll leave a link to spotify:https://open.spotify.com/album/7bhCRp0GRCb74rL6K57ZLJbut you'll find it on any main stream service of your choice!

author: Len
author_rank: Frequent Contributor
timestamp: December 22, 2017, 10:22:17 pm
content: Liking it
Stupid noob oscilloscope tricks, damage?  - Page 1
Forum section: electronics / general

author: tablatronix
author_rank: Regular Contributor
timestamp: December 16, 2017, 03:36:11 pm
content: EDIT: nm, PS was in Series mode...Connecting 2 oscilloscope channels to 2 channels of a floating power supply... dohIn my defense I have read and think I understand earth and grounds fairly well, BUT I left a coax connected late last night, and tested the other channel this morning with a probe.I could not figure out how a 10x probe would be sinking 1A at 1v , good thing for limit protection.Now I need good measurement habits, namely don't leave shit connected and assume you left it hanging somewhere.Question:So what actually happens when you tie grounds together on a (the same) floating power supply via earth no less ( although that does not seem to make a difference here )Trying to determine the current flow here in the power supply, It was not through the oscilloscope front end etc. could the power supply suffered any damage, bridging grounds in parallel seems like a normal thing for doubling voltage but the supply also has a special mode for that.Its an instek GPD3303s FYI.I think I have a schematic around here somewhere...

author: rstofer
author_rank: Super Contributor
timestamp: December 16, 2017, 06:56:21 pm
content: Without a schematic and some knowledge of how you probed it, it's pretty near impossible to say much about the issues.Just remember, that probe ground lead is connected directly to earth ground through the scope.I don't work on floating supplies or SMPSs so I'll leave that bit to others. If you find you have to take differential measurements (A-B math function on scope) you might be better off with a differential probe. Dave sells one...As you found out, you just can't go connecting ground leads here and there. On SMPSs, you probably do need to take differential measurements.Remove the ground leads from the probesand use the math function (A-B).

author: tablatronix
author_rank: Regular Contributor
timestamp: December 17, 2017, 02:21:23 am
content: Ok so I didn't really do anything wrong, turns out I turned series mode on accidently at some point on the PS.Just now noticed my mistake.I also realized this should have been posted in beginners, but I had the entire ELECTRONICS category collapsed somehow, and did not even know it existed!