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

author: z9Rct4RJ2lutJ64XxSqH
author_rank: Newbie
timestamp: May 27, 2016, 07:44:46 pm
content: A video that explains the meaning of THD and how it's measured (plus any related theory) would be great. I believe you mentioned the term when discussing the uCurrent.

author: uncle_bob
author_rank: Unknown
timestamp: May 27, 2016, 08:22:10 pm
content: Quote from: z9Rct4RJ2lutJ64XxSqH on May 27, 2016, 07:44:46 pmHiJust to be sure we're talking about the same thing:THD = Total Harmonic DistortionTo measure:Put in a sine wave at some frequency.Get out a signal, it will have the sine wave plus harmonics due to distortion.Measure just the harmonics.Measure just the sine wave out.Take the ratio of the harmonics to the sine wave out as a percentage and you have the THD.Given the massive re-use of simple three letter abbreviations, it's sort of important to check that the sought after measure relates to something else...Bob
New EEVblog Lab Rat - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: May 02, 2016, 04:20:15 am
content: Meet Tiernan, new final year packer and shipper and general lab rat (when available)Local EE uni studentYes, David2 still works on stuff from home.

author: joeqsmith
author_rank: Super Contributor
timestamp: May 02, 2016, 04:29:08 am
content: Welcome to the group.

author: tautech
author_rank: Super Contributor
timestamp: May 02, 2016, 04:31:48 am
content: Not at all rodent likeWelcome Tiernan.

author: rrinker
author_rank: Super Contributor
timestamp: May 02, 2016, 12:07:17 pm
content: Welcome aboard muwahahahahahahahahaThough to date, we have not seen anything evil happen to dave2, at least on video. However, Dave keeps saying he's 'working from home'.......<cue spooky music>

author: liquibyte
author_rank: Frequent Contributor
timestamp: May 02, 2016, 12:36:19 pm
content: Dave do that teardown on the new wood chipper yet?

author: Kilrah
author_rank: Unknown
timestamp: May 02, 2016, 12:39:36 pm
content: I was more curious about a teardown of the new lab asset

author: Brumby
author_rank: Unknown
timestamp: May 02, 2016, 01:10:45 pm
content: Welcome Tiernan.Hope your initiation isn't too harrowing.

author: Ice-Tea
author_rank: Super Contributor
timestamp: May 02, 2016, 01:18:37 pm
content: When Dave says "Hold this please". Don't.Whatever it is.

author: stmdude
author_rank: Frequent Contributor
timestamp: May 02, 2016, 01:37:24 pm
content: Hmm.. How come this came to mind?( Yep, we're the freaks. Tiernan will become one of us, one of us, one of us )

author: Nozzer
author_rank: Contributor
timestamp: May 27, 2016, 01:29:56 pm
content: Welcome on board Tiernan. I was wondering if you were the Tiernan who appeared in a 2008 BBC comedy series called Lab Rats... But probably not.http://www.bbc.co.uk/programmes/b00cngdg
Geoclense Home Harmonizer - Page 1
Forum section: electronics / general

author: MisterEd
author_rank: Newbie
timestamp: December 13, 2016, 01:08:21 am
content: Here is a quality, "Proudly Designed and Manufactured in Australian" product that I think will be awesome for a test of their claims or tear down if you haven't done it already.https://www.facebook.com/FAILElectrical/posts/668823023294829http://www.orgoneffectsaustralia.com/product/geoclense-home-harmonizer/I love the international versions, looks like they just glued an adaptor plug on.Quote

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: January 03, 2017, 09:54:19 pm
content: This is the most OTT bullshit outfit I've ever seen - surely there's enough of an obvious con there to get local trading standard to shut them down?

author: Brumby
author_rank: Unknown
timestamp: January 04, 2017, 01:13:34 am
content: You would think so....I do like the way they dress up this turd with various frequencies for various "energies". I'd do a facepalm - except it's not worth the energy.(Facepalm energy runs at 50Hz in Australia - or so I believe)

author: grifftech
author_rank: Frequent Contributor
timestamp: May 04, 2017, 08:14:21 pm
content: Quote from: Brumby on January 04, 2017, 01:13:34 amIt runs at 59.9Hz in Texas

author: thm_w
author_rank: Super Contributor
timestamp: May 04, 2017, 08:37:31 pm
content: At first I thought it was actually generating negative ions: "The Geoclense is a negative charge resonance field generator designed to balance positive charge resonance"But then they say this, "Note: The Geoclense does not consume any electrical supply."
Fumdamental fridays: estimating crosstalk - Page 1
Forum section: electronics / general

author: guillep2k
author_rank: Contributor
timestamp: May 19, 2016, 12:01:39 pm
content: Hi, Dave. I'd really like to see a video about calculating or estimating crosstalk. Literature on internet is very confusing!! If you'd like, check this post where I talk about it a little:https://www.eevblog.com/forum/eda/crosstalk-analysis-altium-vs-the-world/msg941984/#msg941984Thanks!
Hi Res Display Issue Fixed - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: May 19, 2016, 10:05:04 am
content: I think the issues with high res >2560x1440 displays has been fixed.This was the problem:

author: Rerouter
author_rank: Super Contributor
timestamp: May 19, 2016, 10:31:40 am
content: Kinda still there, but much less annoying,
DS-1054Z vs GDS-1054B shootout? - Page 1
Forum section: electronics / general

author: Fungus
author_rank: Super Contributor
timestamp: May 15, 2016, 10:09:58 am
content: It looks like other people are aiming at the $400 price slot, eg. the GW Instek GDS-1054Bhttp://www.tequipment.net/Instek/GDS-1054B/Digital-Oscilloscopes/Price is close to a DS-1054Z and specs are similar, even the model numbering is similar to Rigol (DS1054Z or DS1054B?)Being hackable obviously gives the DS1054Z a big advantage but maybe time for a shootout video.

author: saturation
author_rank: Super Contributor
timestamp: May 17, 2016, 03:18:23 pm
content: Dave did a video here but it lacks more depth in performance testing.https://www.eevblog.com/forum/blog/eevblog-824-gw-instek-gds-1000b-oscilloscope-teardown/and in the FFT analysis there is some comparison between Rigol and Instek, plus a good contrast against top brands and a dedicated SA:https://www.eevblog.com/forum/blog/eevblog-845-oscilloscope-fft-comparison/msg851840/#msg851840
uSupply - Hows it going? - Page 1
Forum section: electronics / general

author: unknowndomain
author_rank: Regular Contributor
timestamp: March 09, 2012, 10:38:32 pm
content: Hey Dave,Love your podcast and have been really enjoying watching the uSupply videos!How is this project coming along, will there be more videos soon? Craving more right now!Tom

author: EEVblog
author_rank: Unknown
timestamp: March 09, 2012, 11:02:04 pm
content: I've just changed the design for Rev3, and will likely shoot another video on monday which should be a big one. Lots of changes, lots of system engineering stuff to talk about.Dave.

author: george graves
author_rank: Super Contributor
timestamp: March 10, 2012, 01:01:54 am
content: Awesome! Can't wait!

author: mtkaalund
author_rank: Contributor
timestamp: March 10, 2012, 05:37:39 am
content: Sounds good Dave, I cant wait until the episode comes online

author: jb79
author_rank: Contributor
timestamp: November 10, 2014, 08:11:51 am
content: Hi!Yes, this is a very old thread but I'm wondering why there haven't been updates of the uSupply for a long time.The video list on the projects website (http://www.eevblog.com/projects/usupply/) is also outdated.The latest update ( EEVblog #644 - How To Design Front Panels On Extruded Enclosures - µSupply Part 14 ) was in July.Any plans when the finished project will be available?A pcb file, a pcb or a complete kit would be fine.

author: JoeN
author_rank: Frequent Contributor
timestamp: November 10, 2014, 08:15:02 am
content: I don't know about everyone else, but I totally prefer Fundamental's Fridays and explanations of real projects like the uCurrent to rants and the mail bag (though I have seen several things on the mail bag with respect to old technology that have been quite interesting). But maybe this is because I made my vocation software and database design and not electronics and electrical engineering so there are still quite a few things I need to learn concerning electronics and electrical engineering.Quote from: jb79 on November 10, 2014, 08:11:51 amAnyway, I think the uCurrent design is considered stable and final for at least this version and is in stock:https://eevblog.myshopify.comhttp://www.eevblog.com/projects/ucurrent/

author: jb79
author_rank: Contributor
timestamp: November 10, 2014, 12:51:43 pm
content: Hi JoeNI'm looking for more information about the uSupply, not the uCurrent

author: JoeN
author_rank: Frequent Contributor
timestamp: November 10, 2014, 08:19:44 pm
content: Quote from: jb79 on November 10, 2014, 12:51:43 pmWow, sorry. It was late and I read it as I wanted it to read, not what it actually said.Hey, I'd like to hear how that's going too. Always interested in another top to bottom non-trivial project explanation.

author: JoeN
author_rank: Frequent Contributor
timestamp: May 25, 2016, 05:01:36 am
content: Well, given the latest video. How is it going now? Are we going to hear an announcement soon?Errata #1: Change product name on schematic.

author: EEVblog
author_rank: Unknown
timestamp: May 25, 2016, 05:44:47 am
content: Quote from: JoeN on May 25, 2016, 05:01:36 amNo, that video is several years old.
iTech review (compared to BK) ? - Page 1
Forum section: electronics / general

author: onesixright
author_rank: Frequent Contributor
timestamp: May 01, 2016, 11:57:29 am
content: How about some ITech review, compared to BK.I think the Power supplies, and DC load are worth looking at it (since they look the same).Curious about the inside, performance and software compatibility.My $0.0216R

author: Dubbie
author_rank: Unknown
timestamp: May 05, 2016, 06:30:29 am
content: I have a itech, like the bk, it injects a bit of noise, so is useless for low noise measurements. It also isn't very accurate with very small currents (a few milliamps).Apart from that it works fine. I guess if you need those things, a good SMU would be the ticketSent from my phone using Tapatalk
Some Suggestions - Page 1
Forum section: electronics / general

author: apelly
author_rank: Unknown
timestamp: April 28, 2016, 03:18:08 am
content: Here's some stuff I thought of while I accidentally ranted in another thread. Might as well post it where it might be looked at.Grab an old iphone 5 whatever it was and get the data off it.Grab an old laptop and hack the charging circuitry for a new super-battery.Make a small switching supply for something. Hack the fluke DMM data protocol and build an ir>bluetooth adaptor.Hack a microwave with a super cap to drive the clock when the power fails.Make kids shoes that emit noise when they walk and give them to a friends kid.Take a look at IoT security best practice.Make the windscreen wipers on his car go when they sense rain.Hack those beeping, flashing "your meal's ready" things they give you in bistros and bars so you can make them go off whenever you like. (actually I might do that one myself!)Make a quick and dirty home-made "your meat's done" thermometer.Check his fridge efficiency and compare it with a home made pid controller.Make a sensor for his mail box that sends an SMS when the post office put something in there.Remake the classic old FM bug with tiny smd stuff.Modify a cheap FM radio to pick up in-stadium broadcasts.Chat about thermocouples that aren't k-type.Cut the leads on that multimeter he smashed pointlessly and see if they're multi layered insulation. See how the ends are joined. Flex them until they break.Read the firmware off a printer and look at the code that adds the yellow dots. Reverse engineer a smart electricity meter and modify the firmware
Sub Category For "Projects, Designs, and Technical Stuff" - Page 1
Forum section: electronics / general

author: Aodhan145
author_rank: Frequent Contributor
timestamp: April 24, 2016, 06:37:58 pm
content: I always enjoy looking at other peoples projects, it inspires you to build somethings and also they are just interesting to try to understand.The Projects, Designs, and Technical Stuff category is good but I think it might be better with a sub category for contributors to show off their projects. This would help separate them from the rest of the category as it is mainly full of people just asking questions. This may be useful.What does everybody think? Would a sub category for personal projects be useful?
USB Oscilloscope review/teardown - Page 1
Forum section: electronics / general

author: kr15_uk
author_rank: Newbie
timestamp: March 30, 2016, 09:37:13 am
content: Dave,I know your opinion on USB oscilloscopes but I would love to see some review/teardown of some PC based USB oscilloscopes.Quick Googling/eBay'ing/Amazon'ing around brought to my attention cheap Hantek 6022BE/6022BL USB oscilloscopes.Hantek as far as I know is OK brand and USB oscilloscope shouldn't be as bad.Dave, I'd guess you're not keen to spend your own money.But maybe someone does have some contacts in Hantek?!Right before everyone screams and shouts "USB scopes are evil" I'll say in my defence - I do have an analog oscilloscope but it takes 1/4 of my tiny workbench + I'm using it probably once a week so I can't justify spending £250+ for a new scope. USB oscilloscope in my opinion is very good alternative.Yeah I know some people don't have PC in their lab but for some of us our lab is our "mancave" which even might have little beer fridge... Some of you will know what I'm talking about...Thanks.Regards,Kris M

author: daybyter
author_rank: Frequent Contributor
timestamp: March 30, 2016, 10:28:59 pm
content: https://www.eevblog.com/forum/testgear/hantek-6022be-20mhz-usb-dso/

author: vk6zgo
author_rank: Super Contributor
timestamp: March 31, 2016, 07:15:33 am
content: Quote from: kr15_uk on March 30, 2016, 09:37:13 amMany analog Oscilloscopes are intended to be used on a "scope trolley",instead of taking up bench space.For about what you'll pay for the 6022BE,you can probably make up one of those,or find one on eBay.That said,there is a long thread on this forum about 6022BE 'scopes which will give you a grasp on their good & bad points.There are Youtube videos showing them in use,too.
rf intermodulation - Page 1
Forum section: electronics / general

author: The Soulman
author_rank: Super Contributor
timestamp: March 28, 2016, 04:52:35 pm
content: Could be a interesting topic with more and more stuff going wireless, also noticed in previous video's a pair of sennheiser EW100 wireless (microphone)transmitters (or was it one transmitter and one bodypack receiver?) and a nice rf spectrum analyzer...If Dave has two transmitters get them spaced 200khz apart and see what happens on the analyzer.These days it is getting more and more difficult to get a decent number (30 or so) of these wireless audio connections reliable working in the crowded ether.Maybe a trip to the opera house to see how they are doing?
Kudos to the hosting: 4ms ping! Go U.S. content consumption :) - Page 1
Forum section: electronics / general

author: bubba198
author_rank: Contributor
timestamp: September 24, 2016, 11:01:47 pm
content: Kudos to the hosting: 4ms ping! Go U.S. content consumptionOk I'm in San Francisco and I do have fiber at home but still this is pretty sweet! Good work Dave!~B
RS Soldering Stations ST-60 and ST-80 - Page 1
Forum section: electronics / general

author: Icchan
author_rank: Regular Contributor
timestamp: March 25, 2016, 10:25:27 pm
content: Has anyone yet suggested you to review these?They look awesome in that regard that they're not horribly expensive, but use quality Hakko tips and have somewhat reputable reseller behind them.I'd definitely want to see a review of them. I already suggested if they'd contact you about it.I'm in a market for a new semi professional soldering iron anyway, but I don't have money for anything 300e+
t-fal optigrill tear down - Page 1
Forum section: electronics / general

author: sarepairman2
author_rank: Frequent Contributor
timestamp: February 25, 2016, 03:44:42 am
content: I got this little bugger and it makes food bang on every time.http://www.amazon.com/T-fal-OptiGrill-Stainless-Removable-Dishwasher/dp/B00H4O1L9YI can actually get super tender worry free chicken off this thing that maybe even tastes better then stuff off the gas grill (and certainly seems healthier because you can clean it easily and you don't need to worry about old rancid fat being vaporized like you do on a regular grill). It even does steak pretty decent.

author: coppice
author_rank: Super Contributor
timestamp: March 24, 2016, 08:46:10 am
content: Quote from: sarepairman2 on February 25, 2016, 03:44:42 amSurely a grill would only worry a chicken if the chicken is still alive when you put it in the grill?

author: SeanB
author_rank: Super Contributor
timestamp: March 25, 2016, 04:37:43 pm
content: Make sure you make a copy of the receipt for that, especially if you got a warranty over a year on it, you will need it. ISTR the PSU in these, and many of the clones, being a very poor capacitor supply that dies in the high heat environment, along with all the capacitors being the bottom of the barrel cheapest thing we could buy that day in the market kind, often being recycled or fake, barely meeting any sort of QC when new, let alone when gently cooked for a few months.
willow curve - Page 1
Forum section: electronics / general

author: teamSMITHusa
author_rank: Contributor
timestamp: March 24, 2016, 06:07:50 am
content: Hi Dave!Just thought I'd give you a video blog suggestion.Try and get your hands on the willow curve.This would be ground breaking to do a teardown and perhaps a debunker.No one seems to know the technology behind it.It would no doubt be an internet first.Unfortunately these units are $600usd from what I heard, otherwise I'd send you one.Keep up the good work... Love your content.

author: coppice
author_rank: Super Contributor
timestamp: March 24, 2016, 08:41:28 am
content: Its a fancy version of an infra-red lamp. They do help a lot of people, but its not clear this is genuinely more helpful than the more reasonably priced infra-red lamps people like Philips have been selling for decades.
Wireless doorbell without a battery - Page 1
Forum section: electronics / general

author: PeterFW
author_rank: Frequent Contributor
timestamp: March 17, 2016, 02:45:03 pm
content: Hello!I just came across a wireless doorbell design without a battery in the transmitter,at first i thought, this might be a bit of a simple circuit, but it is quite sophisticated:https://youtu.be/5cKhyGMZbq8?t=65Sadly i can not just send you one but if you come across one, it seems to be a interesting piece of low current design with energy harvesting.There is a electromechanical thingie in there wich generates the power, a µC, RF chipset and a DCDC converter.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: March 17, 2016, 02:49:07 pm
content: Just watched that video reply also. I LOL'd at their advertising stills.http://www.banggood.com/Linbell-G2-Waterproof-IPX7-Self-powered-No-Battery-Wireless-Door-Bell-p-1023669.html

author: ataradov
author_rank: Super Contributor
timestamp: March 17, 2016, 04:42:37 pm
content: Philips Hue Tap uses the same principle -http://www2.meethue.com/en-us/productdetail/philips-hue-tap-switchIt has 3 buttons, so design is a bit more complicated. You press a button and keep on pushing until entire base goes in. That generates enough energy to transmit a frame corresponding to a button.

author: rfeecs
author_rank: Frequent Contributor
timestamp: March 17, 2016, 06:42:30 pm
content: These are becoming very common with "internet of things".Just google "energy harvesting switch".

author: Zbig
author_rank: Frequent Contributor
timestamp: March 19, 2016, 03:20:44 pm
content: Quote from: ataradov on March 17, 2016, 04:42:37 pmI got one of these just recently. There's a teardown available online:http://arstechnica.com/gadgets/2014/08/gallery-dissecting-the-philips-hue-tap-wireless-battery-less-controller/While it's undeniably cool and sophisticated ("look ma, no battery!"), for me, once the initial wow-factor wore off a bit, I think I would have preferred more conventional, battery-powered solution. From personal experience, batteries in such things tend to last forever. The force and amount of travel needed to activate it, while not a problem for an adult by any means, is fair amount larger than what we're used to while operating other modern devices. And there's this "you've pressed the smaller button but have to keep pressing harder for the whole thing to click" you've mentioned. I have yet to see how a person not familiar with Hue Tap's operation copes with it. On top of that, the mechanical construction is that you apply the force off-center and the other half tries to pull itself in asymmetrically, lagging a bit behind. I'm not sure how to explain it properly but picture the space key on the computer keyboard that has its "stabilizer bar" missing. Feels kind of weird and makes you wonder about the mechanism's reliability (even when the module's manufacturer, Enocean's figure is reassuring).
Real world examples/tutorials on Oszilloscope using/bugtracing - Page 1
Forum section: electronics / general

author: calli
author_rank: Regular Contributor
timestamp: March 15, 2016, 01:48:31 pm
content: Hi,"thanks" to Daves "19$ Hameg EEVBlog" I "accidentally" bought a Hameg HM205-2It shows the same quirks as in the video, however thats what did let me hit the "BID" button at last. Thats my hobby and I wanted something to play with... And Dave: Thanksto your videos the prices are too high now here in germany (yes, one of the peskey ones).When my scope finally runs good it should not sit in a corner getting again dust like my USB DSO...So now for my suggestion: How about some "real" world examples/tutorials on Oszilloscope using/bugtracing. What can a noob expect? What types of errors can you trace down with a scope? etc.Best, your "peskey german",CarstenPS: I have a still growing family inAustriaAustralia (you are the country with the strange animals right?), so better don't mess with me or I send them over
Ground Loops! - Page 1
Forum section: electronics / general

author: iamdarkyoshi
author_rank: Frequent Contributor
timestamp: March 07, 2016, 04:50:49 am
content: I am having issues with multiple switchmode regulators powered by the same source causing interfefence on a VGA cable on an open-air PC. Electricity is flowing through the shield on the cable, causing interference.Perhaps Dave could explain1. What is a ground loop and what causes it?2. How do you track down the cause and how do you fix it?Currently I have had some luck by adding commonmode chokes to everything and jumping a seperate wire from one end of the VGA cable to the other so electricity follows its path instead of the shield, but I can still see noise on the analog driven screen.What do you think? Should Dave do a video on ground loops?
Review of cheap bench multimeters. - Page 1
Forum section: electronics / general

author: 3db
author_rank: Frequent Contributor
timestamp: February 18, 2016, 11:11:17 pm
content: I think a review of cheap bench multimeters would be good.I was browsing on some of the Chinese websites,Banggood etcand noticed a few bench multimeters from a few manufacturers,Mastech etc.Anyway just a thought.PS Love your work Dave.

author: tszaboo
author_rank: Super Contributor
timestamp: February 18, 2016, 11:41:19 pm
content: Why? I've never seen any anywhere and it is pretty pointless. The cheaper ones are just a handheld meter with 230V instead of batteries, the more expensive ones have worse specification than a decent Fluke 4 digit handheld. You get a bench meter for the specification, trust and the calibration label. You get none of those from china.If you dont have the budget, just buy a used one.

author: 3db
author_rank: Frequent Contributor
timestamp: February 19, 2016, 05:10:11 am
content: Quote from: NANDBlog on February 18, 2016, 11:41:19 pmWhy ? Because I though it was a good idea.It's not about the money.Fluke 77 the first 4 digit I found on Google £289 +vatRigol DM3058E £307+vatHaven't read all the specs for either yet.I've tried to buy older ones before but failed.Perhaps that's because of the collectors.btw The Fluke multimeters I owned many moons ago didn't last a long time because of the crappy LCD displays.

author: hopski
author_rank: Regular Contributor
timestamp: March 05, 2016, 06:42:34 am
content: Dave's got a Siglent SDM 3055 lying about that's already been torn down. It would be interesting to see how he thinks it compares to the Rigol Bench Multimeters.Already reviewed the Rigol Scopes and power supplies, so I guess the Rigol Multimeters are due a look.
PCB Layout w/rant - Page 1
Forum section: electronics / general

author: johm
author_rank: Contributor
timestamp: March 03, 2016, 12:14:48 am
content: I'd definitely like to see more videos on PCB layout. And I'd like Fund. Fridays back too with some RF content perhaps, transistor circuits (Colin Mitchell like) or maybe old designs Dave did. (like the clock episode #801).Thank you Dave!

author: Wilksey
author_rank: Super Contributor
timestamp: March 03, 2016, 11:57:39 am
content: +1I'm still waiting for Dave to move across to KiCAD and put some videos up of him using it!

author: krivx
author_rank: Frequent Contributor
timestamp: March 03, 2016, 12:15:02 pm
content: I think Dave has said that certain video types just aren't particularly popular in terms of views and ad impressions. That said, I think another timelapse of PCB layout (in any package, really) with some commentary could entertaining. If the board needs to be laid out anyway then it's (hopefully) not a huge amount of work for a video.
Kicad update due: Ubuntu 14.04? - Page 1
Forum section: electronics / general

author: peepo
author_rank: Contributor
timestamp: January 12, 2016, 08:20:01 am
content: Dave,Its time for a new Kicad review!maybe on Ubuntu 14.04!!As you will know Kicad has been extensively updated over the last 12 months, due to CERN input.~50MB/day?~:"

author: 4JimBeam
author_rank: Newbie
timestamp: February 18, 2016, 04:03:55 pm
content: +1

author: ElektroQuark
author_rank: Unknown
timestamp: February 19, 2016, 09:20:42 am
content: 4.0.2 version is to be launched soon.

author: c4757p
author_rank: Super Contributor
timestamp: February 23, 2016, 04:12:36 am
content: I don't understand Ubuntu 14.04 - particularly people who want the latest version of KiCad on it. Why do people insist on using an old version of Ubuntu Geriatric Giraffe instead of something recent, and then also try to get recent software?The whole idea of designated stable releases is for stability in managed arrangements. I run Debian across a cluster of 45 machines at my school in computer labs used by students and professors. As much as I'd like to have the latest software on them, it's a lot of work because of all the hidden problems that can pop up with hundreds of users across dozens of computers (esp. when some of the users are stubborn professors and think "the software is shaped a bit differently now" is a problem). If I used Ubuntu, I'd use an LTS release (Debian releases slowly enough for my school's cadence).Why so many home users??
SWER - Single-wire earth return - Page 1
Forum section: electronics / general

author: made2hack
author_rank: Frequent Contributor
timestamp: February 15, 2016, 01:11:52 pm
content: Hey all,Just found out about SWER - Single-wire earth return. Seems to be pretty common in NZ and AU in rural areas. Would be interesting video (fundamental Fridays) that Dave could do since he might know more about it than us non NZ/AU.
How about a component review segment? - Page 1
Forum section: electronics / general

author: thomastheo
author_rank: Regular Contributor
timestamp: February 04, 2016, 07:30:27 pm
content: Hi!I'm a big fan of the blog, and all the teardowns, reviews, fundamentals, and general discussion vids. I was wondering though, seeing as a large part of being in the business is keeping on top of everything that's out there, why not a segment on parts, as in 'interesting components'. There are so many interesting things available these days, it must be possible to hold the attention of your viewers by delving into this area more, as opposed to only looking at finished products. Sensors in particular hold my interest (who doesn't like sensors), but from the niche special function chips to the advances in more general purpose parts, there is a lot of industry ingenuity and innovation to showcase here. As an added mention, the plethora of modules available for use today could also make for interesting topics. They are incredibly popular with the maker community, and are generally quite affordable, accessible and useful.Cheers and thanks for the great content,Th.

author: Alexei.Polkhanov
author_rank: Frequent Contributor
timestamp: February 04, 2016, 09:03:04 pm
content: I agree that there are lots of interesting components on the market right now. I disagree about "new and innovative" - most of it is just an old designs, sometimes 40-50 y old designs repackaged to look like new idea. Exciting part is that some new manufacturing technologies made them much cheaper so anyone can buy them.Sensors are exciting, but also very hard to give objective, useful review due to amount and complexity of math and physics and expensive equipment that have to be involved in such review. Another problem is that all interesting industrial sensors are still very expensive, so you will end up showing sensors made in 1980s that you can get on Ebay. Not exactly new new new exciting stuff.In other words if it is new it is hard to attain and review if it is attainable - it is already old, seen before stuff- that is always the problem.

author: thomastheo
author_rank: Regular Contributor
timestamp: February 04, 2016, 09:38:26 pm
content: I beg to differ, and even if were all just rehashed tech, just because i've tasted beef once doesn't mean I can't still be surprised by a new dish cooked up including beef as an ingredient. I don't see any evidence that innovation is stagnating, quite the opposite in fact. But that's not really what I meant to suggest. There's plenty out there that still surprises in one way or another, and I would personally like to see such things on the blog.
Please get Jonathan Oxer from SuperHouse.TV on EEVblog - Page 1
Forum section: electronics / general

author: kolbep
author_rank: Frequent Contributor
timestamp: January 31, 2016, 03:07:13 pm
content: In Australia, somewhere near Dave I believe, lives Johnathan Oxer from SuperHouse.TV / FreeTronics.Maybe Dave can try meet up with this guy, because his content is very interesting. Might be fun to have Dave do a video Evaluating this guys work.He is an Australian Electronics Engineer who has automated his whole house using Arduino's with POE, Etc.He has also worked on a cube satellite.In his video about his lab, he says that he listens to The AmpHour, and in one of his other videos he goes to one of those conferences, and the first person he bumped into is Dave who was discussing the Mantis with the person at the booth.In another video, he is using his EEVblog ruler to mark off a box he is constructingThis guy is very good (in my opinion), and should provide some decent content.P

author: kolbep
author_rank: Frequent Contributor
timestamp: January 31, 2016, 05:28:26 pm
content: Thanks to EG,he pointed out that this guy has already been on the amphour :http://www.theamphour.com/the-amp-hour-123-innoxious-implant-innovator/
A new category?  PC/computer repairs - Page 1
Forum section: electronics / general

author: SL4P
author_rank: Super Contributor
timestamp: January 30, 2016, 03:48:11 am
content: I've noticed an increase in the number of 'my PC died yesterday' posts - and thought with the recent post about suggesting new blog categories - this may be appropriate.Rather than EEVblog becoming a subset of Whirlpool* - set aside a new place for PC repair-related content to keep it separate from test equipment and other project electronics 'engineering & repairs'.
Follow-ups - Page 1
Forum section: electronics / general

author: Synthetase
author_rank: Regular Contributor
timestamp: January 23, 2016, 01:54:54 pm
content: I don't want to be "that guy" (hears the groans of "too late" from across the internet...) but personally I'd like to see some of the follow-up videos you've mentioned in past vlogs but not done. There've been a few of them but for some reason the only thing I can think of off the top of my head at the moment is attempting a repair on the little portable Japanese B&W TV set. I'm sure others will be able to think of other videos where the possibility of follow-up videos was suggested, but didn't happen for whatever reason.Now I get that you know what you're doing and that new and interesting ideas come to you all the time. However, I do like closure (even unsuccessful repair videos - at least you go through all the options before it gets binned - it happens) and I'd like to see the outcome of some of these 'projects' for want of a better word.Anyway, cheers for all the great videos so far, I've learnt a lot. I think I need to buy another negative feedback t-shirt as the first one is wearing out
Suggestion for reviewing HP Logic Analyser/Scopes.  - Page 1
Forum section: electronics / general

author: sleary78
author_rank: Unknown
timestamp: January 17, 2016, 09:53:53 pm
content: Hi,Just a quick suggestion. I've noticed that here in the UK you can pick up these HP Combined scope + logic analyzers (e.g. 1661CS/1661AS) second had for about the same price as a Rigol 1054Z. These scopes can have up to 250Mhz bandwidth 1G/s on the scope side and up to 102 channels on the digital side. They do all sorts of nice stuff like bus sniffing and will even disassemble code in real time. Just wondering if these bad boys are worth going for or if you're better of with a Rigol/Siglent etc? If you can get your hands on one it might a fun video.CheersStephen
Subscription to threads - Page 1
Forum section: electronics / general

author: andre_teprom
author_rank: Regular Contributor
timestamp: January 28, 2016, 01:16:30 pm
content: I could not find any way to subscribe to a thread, unless replying.Am I missing something, or in fact that feature is not available ?

author: EEVblog
author_rank: Unknown
timestamp: January 28, 2016, 01:31:03 pm
content: The Notify button in the top right of this message display window.

author: nowlan
author_rank: Frequent Contributor
timestamp: January 28, 2016, 02:10:25 pm
content: Weird, I usually check "Show new replies to your posts."One of the threads in there, I checked, and NOTIFY button was at the top.After clicking, and confirming I want to receive notices, it changed to UNNOTIFY.So either out of sync, or does something else? (email??)

author: andre_teprom
author_rank: Regular Contributor
timestamp: January 28, 2016, 02:18:24 pm
content: Quote from: EEVblog on January 28, 2016, 01:31:03 pmThank you, I assumed that this button should be used as the "report" button, but now it's clear.

author: PA0PBZ
author_rank: Super Contributor
timestamp: January 28, 2016, 03:16:16 pm
content: "Notify" means that it is going to send you an email every time something new is posted in the thread.I wish there was some function to put a thread on the "new replies" list without actually posting in the thread...

author: andre_teprom
author_rank: Regular Contributor
timestamp: January 28, 2016, 03:36:56 pm
content: Quote from: PA0PBZ on January 28, 2016, 03:16:16 pmIt became clear, but the nomenclature of the template of this forum, unlike some others, uses the term "notify" out instead of "subscribe to this thread."Thanks for all, question solved.

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: January 28, 2016, 04:19:00 pm
content: I've asked many times and never had a response ?I will click on notify and will get random posts in email

author: andre_teprom
author_rank: Regular Contributor
timestamp: January 29, 2016, 01:12:08 am
content: You'll be notified once a new reply is added to the thread. You can configure whether the notification will be sent via E-mail, or just highlighted at the board itsef.
Manufacturers bug lists are a feature not a failure. - Page 1
Forum section: electronics / general

author: pickle9000
author_rank: Super Contributor
timestamp: February 14, 2016, 06:51:35 pm
content: Manufacturers bug lists help you select new gear and show how responsive they are to customers needs.https://www.eevblog.com/forum/testgear/new-rigol-ds1054z-oscilloscope/msg869114/?topicseen#msg869114How Hantek does it. Not bad for a company based in China.http://www.hantek.org/asken/

author: uncle_bob
author_rank: Unknown
timestamp: February 14, 2016, 08:42:03 pm
content: HiI guess I'd place "how quickly they clear things off the bug list" pretty highly.Not at all specific to test equipment, but I have seen bugs stick around on lists for years on end. I also have visited places where it is not a bug list, but a bug wall (with post it notes no less ...).Yes, indeed my code has bugs in it. My products have problems. Most of my customers seem to expect that a bug is fixed quickly (like today if not sooner) rather than I post a big list of them. No I don't work on test gear. No two sets of firmware are the same in my world, it's all customer specific. My world and theirs are not the same.Bob

author: pickle9000
author_rank: Super Contributor
timestamp: February 14, 2016, 10:59:33 pm
content: Very true not all bugs need to be listed, spelling mistakes are of minor importance. Having the word "solved" beside a known bug is a big plus.Certain bugs are never solved but knowing they exist is a massive plus on the bench.There is also "real world testing". Certain issues are not known until the product hits the market.

author: uncle_bob
author_rank: Unknown
timestamp: February 15, 2016, 12:25:40 am
content: HiOk, weil I have a problem when I have my Amazon Echo go to IFTTT and chain to my Harmony Hub. It is clearly a Harmony problem. That is only clear if you spend a lot of time debugging it. They have it listed on the bug list as "Amazon problem" and "in process" (that is all the info there is). It is *very* unclear how having that information on a list (along with several thousand others) is of much help to anybody. Someone who was trying to debug an issue would do much better to find my posts on the subject. It's only slightly harder than looking at the list.Bob

author: 4JimBeam
author_rank: Newbie
timestamp: February 18, 2016, 03:55:56 pm
content: I like pickle9000's idea

author: wraper
author_rank: Unknown
timestamp: February 18, 2016, 04:15:37 pm
content: Quote from: pickle9000 on February 14, 2016, 06:51:35 pmYeah, for example, their 4032L logic analyzer is a one big bug. Software/firmware never updated since release. And it never worked as intended. Advertised 64 Mpoint memory per channel, it would be nice if it ever worked when anything above 10k-100k point is selected (depends on how lucky you are this day).
UTD 1050 DL  - Page 1
Forum section: electronics / general

author: JSGregor
author_rank: Newbie
timestamp: January 26, 2016, 05:41:37 pm
content: hello everybody,I work part time for a school of medizin technics andI own a Uni Trend 1050 DL Scopemeter.If Dave make a tear down, will he also build inreturn in running condition after the show ?I m already interested, howthe Scopemeter is built up.But I am not confident, the devicedisassemble and get in return inrunning condition.I use it for easy onesCircuits like rectifier,Tape passport, deep passport etc.Mostly in the frequency responsefrom 500 kHz to 20 MHzSorry for my english mistakesyoursSebastian
Episode about calculators in electronic lab - Page 1
Forum section: electronics / general

author: gatiszvejnieks
author_rank: Newbie
timestamp: January 15, 2016, 12:46:00 pm
content: Hello,Riecently watched youtube video on similar channel as yours, about calculators.VBlogMag #16 - Scientific Calculator review / buyers guide / comparisonYou probably have several calculators you used for electronic engineering at least in the past. (not as many as multimeters or scopes)Are they still used, or totally obsolete?If they have real use maybe you can suggest what functions might be useful specifically for electronics.As I understand there are 4 kinds of calculators: regular office type (5USD), basic scientific(5-10USD), Natural view scientific(10-40usd) and most expensive - Graphing calculators (70-150 usd).I think this would be interesting topic for a video, if calculators are still relevant for electronic engineering.Maybe calculators are also better for learning then simulation software. Because you have to have good understanding to know what to type in. Not just use some graphical software to make simulations of circuits. Of course you can get free calculator app. In my oppinion is just nice change to use non-touchscreen device (that has phisical buttons)+ paper.As a hobby I have some interest in lerarning about electrionics, Im not a student and dont work in that area.

author: kripton2035
author_rank: Super Contributor
timestamp: January 15, 2016, 01:04:10 pm
content: in electonics, I almost only use the ohm law, so simple you rarely need a calculator...for anything more complex, I use a computer.even thought, I have a HP35s, a Casio fx991es and a recently bought Ti84 (discounted at 15€ could not resist)I sometimes use them, but to be honest very rarely for electronics.

author: EEVblog
author_rank: Unknown
timestamp: January 15, 2016, 01:16:30 pm
content: Almost all the electronics work in my career has required nothing more than a basic scientific calc. I prefer the non-VPAM Casios.I use mine daily.What stuff that does need advanced calculations or data analysis is vastly easier to do on a computer.Simulation is done by simulators, not hand calculated apart from the basic stuff.
Siglent SDG3303X - Page 1
Forum section: electronics / general

author: K9BF
author_rank: Newbie
timestamp: January 10, 2016, 04:03:04 pm
content: I'm hoping for a product review of this power supply.

author: rich
author_rank: Frequent Contributor
timestamp: January 10, 2016, 11:51:02 pm
content: Is SDGin the title a typo? There is a teardown and discussion for the SPD3303X here:https://www.eevblog.com/forum/blog/eevblog-828-siglent-spd3303x-precision-lab-psu-teardown/
whats your thoughts on this tech? - Page 1
Forum section: electronics / general

author: Add_man
author_rank: Newbie
timestamp: January 08, 2016, 05:40:18 am
content: My hometown of portland OR is now using pipeline water turbine power. whats your thoughts on this tech?https://magazine.good.is/articles/portland-pipeline-water-turbine-power

author: helius
author_rank: Super Contributor
timestamp: January 08, 2016, 08:42:11 am
content: This has been discussed here:https://www.eevblog.com/forum/suggestions/energy-from-gravity-fed-water-lines-bullshit-or-useful/
Suggestion: debung video of indiegogo project mJoose - Page 1
Forum section: electronics / general

author: hEINstein
author_rank: Newbie
timestamp: January 07, 2016, 02:11:02 pm
content: The indiegogo project mJoose claims to boost your signal with 20dBm, or 100x, so you can recieve calls urben areas.Will this work ? And why don't Samsung (or any of the other phone manufactueres) but this tech in their phones then ?is signal-to-noise ratio not more importent ?Is it because of better antenna design ?https://www.indiegogo.com/projects/mjoose-more-bars-in-more-places-2x-battery-life#/

author: ataradov
author_rank: Super Contributor
timestamp: January 07, 2016, 05:37:02 pm
content: The project is obviously a scam. But I wounder where exactly on the they have connected a VNA?
Suggestion: WIKi structure improvement - Page 1
Forum section: electronics / general

author: timofonic
author_rank: Frequent Contributor
timestamp: January 01, 2016, 01:48:49 am
content: Hello.Since EEVBLOG is reorganizing and improving, I suggest a improvement to a very underrated resource of the site: The WIKI.I know this is hard work, so just take it as a suggestion. I did one previously, but I consider this one more elaborated.- Personal wikis: It could be used to organize personal projects, with linked forum threads that can show the first message as that page.- Electronics & related Encyclopedia: This is a very ambitious, but it could be a crowdsourced project that could be shared by many other communities by using interwikis to sync the content or whatever.- Summarizing forum threads: For the OCD people, this would require find specific forum threads and write their URLs. After the work is considered finished, those forum threads are marked with the wiki URL in the first post.About organization:The wiki obviously needs an overhaul, it's just a bunch of links. It needs to have a lot more visibility, have a proper layout and more sections. I'm currently not bright enough to provide a sample layout, but I can provide some ideas.Kind regards.
Website crash - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: March 31, 2014, 10:38:57 pm
content: The crash today was due to the SQL server chucking wobbly. A restart and minor repair fixed it.

author: bitshape
author_rank: Contributor
timestamp: March 31, 2014, 10:43:09 pm
content: Glad the EEVblog is up and running again.

author: robrenz
author_rank: Super Contributor
timestamp: April 01, 2014, 12:51:18 am
content: I was wondering if Fluke had connections to have the EEVBlog shut down

author: han
author_rank: Frequent Contributor
timestamp: April 01, 2014, 01:13:36 am
content: No it's not crashing, it's April joke from the server...

author: wilheldp
author_rank: Regular Contributor
timestamp: April 01, 2014, 01:37:05 am
content: Quote from: EEVblog on March 31, 2014, 10:38:57 pmGod I love Australian slang. This is a new one to me.

author: zapta
author_rank: Super Contributor
timestamp: April 01, 2014, 02:06:06 am
content: Any news with the Tapatalk support?

author: hamster_nz
author_rank: Super Contributor
timestamp: April 01, 2014, 02:21:03 am
content: Quote from: wilheldp on April 01, 2014, 01:37:05 amSo I guess you've never been as dry as a dead dingo's donger?

author: nkeck72
author_rank: Contributor
timestamp: December 29, 2015, 08:15:35 pm
content: QuoteCan't say I ever have.
Rigol DS4014 review - Page 1
Forum section: electronics / general

author: Gonzy78
author_rank: Contributor
timestamp: December 20, 2015, 01:32:20 pm
content: Hello,I'am new there. I'am interested to buy a Rigol RS4014 as a self gift. Yeah an other engineer that work at homeI would like to know better on it. A review and a take it apart would be nice. I'am interested to compare DS2102 vs DS4014 analog channel, if you can have a DS4054 to compare with the DS4014 if a mod is possible & easy, that would be O0Hi from France !Thank you Dave for your channel. I am addicted ...

author: dr.diesel
author_rank: Super Contributor
timestamp: December 20, 2015, 01:47:06 pm
content: There has been extensive discussion about this already:https://www.eevblog.com/forum/testgear/rigol-mso4000-and-ds4000-tests-bugs-firmware-questions-etc/I have the MSO4000, and would not buy another one.

author: AndyC_772
author_rank: Super Contributor
timestamp: December 20, 2015, 02:00:37 pm
content: I'm inclined to agree. I spec'd a 4054 for work, but much prefer my Agilent MSOX3054A.
Comparison of Function/Arb Generators - front panel and computer operations - Page 1
Forum section: electronics / general

author: Electro Fan
author_rank: Super Contributor
timestamp: January 21, 2016, 05:33:56 am
content: A comparison of Siglent, Rigol, and Keysight Arb Generators - or maybe someone wants to suggest other manufacturers or specific models. For example, Tektronix Arb Gens don't come up here too often but Tek's software seems to be more in the Keysight league than the Siglent/Rigol league. Ideally, the review would have two parts: one on the front panel operations and one on the arb creation/editing process using a computer.