hybridfree/eevblog-posts huggingface dataset:
First Digital Computer Replica - Page 1
Forum section: electronics / general

author: DJPhil
author_rank: Frequent Contributor
timestamp: August 08, 2010, 05:59:25 am
content: I thought you guys might get a kick out of this video. Apologies if it's a repost.Neat stuff!

author: Unknown
author_rank: Unknown
timestamp: August 08, 2010, 08:25:15 am
content: Cool video, thanks!

author: Mechatrommer
author_rank: Super Contributor
timestamp: August 08, 2010, 10:26:51 am
content: i still dont get the point if its for the future. except tried to recreate the "Atanasoff" family legacy... or "unrealized" invention, like babbage machine.solving 25 simulatenous linear equations is not a sweat for current computing tech.

author: Simon
author_rank: Unknown
timestamp: August 08, 2010, 12:37:03 pm
content: It's interesting to see how stuff used to work, it is the foundation of today's technology

author: Time
author_rank: Frequent Contributor
timestamp: August 08, 2010, 07:02:01 pm
content: Looks like a giant music box.

author: Simon
author_rank: Unknown
timestamp: August 08, 2010, 07:33:15 pm
content: well it's the same storage technology as the old music boxes, i like the dynamic RAM very clever

author: Time
author_rank: Frequent Contributor
timestamp: August 08, 2010, 07:45:13 pm
content: I guess it never dawned on me that it was data storage.

author: Simon
author_rank: Unknown
timestamp: August 08, 2010, 07:47:35 pm
content: well it was a sort of converter, it generated binary numbers that correspond to each hole in the cards but that still counts as memory basically, the "dynamic RAM" was a bit more sophisticated but very clever

author: saturation
author_rank: Super Contributor
timestamp: August 09, 2010, 05:17:50 pm
content: If you read the story behind the ABC versus ENIAC, apparently one reason for pursuing Atanasoffs place as one of the principle inventors of the digital computer was to break a monopoly by Sperry Corp on computing. In the end, it clarified who did what, and in my own estimate, put most of the technology into the public domain.http://en.wikipedia.org/wiki/Honeywell_v._Sperry_Rand"With 135 days of oral courtroom testimony by 77 witnesses—and the presentation of the deposition of an additional 80 witnesses—for a total trial transcript of 20,667 pages, Honeywell v. Sperry Rand was at that time the longest trial in the history of the federal court system. It was preceded by six years of litigation that produced thousands of pages of under-oath depositions. 25,686 exhibits were marked by the court for plaintiff Honeywell; defendants Sperry Rand and its subsidiary Illinois Scientific Developments contributed 6,968 exhibits. The corporations on the two sides spent a combined more than $8 million pursuing the case. The resulting exhibits and testimony constitute a massive evidentiary record describing the invention and development of the electronic digital computer. Materials relevant to the case but not entered into evidence have appeared, but sparsely and infrequently, since the case's conclusion in 1973."
Technology and innovation by Braun ..  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 11, 2010, 10:09:37 am
content: http://www.braunprize.com/braunprize2009/If you have free time , check the above link , its an window, so to see the innovations who will possibly change our life in the near future .

author: Mechatrommer
author_rank: Super Contributor
timestamp: August 11, 2010, 11:11:49 am
content: the winner is the oled lamp?? i think thats has been discussed quite a number of times here already.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 11, 2010, 11:34:30 am
content: There is more than 25 fantastic ideas in it ...And the winners are more than one ..The most interesting for my taste, are the motorcycle .. and the " energy dish ".
OT  Moon shot   25X optical  by Olympus camera.  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 26, 2010, 11:34:49 pm
content: The 23-25 of August its the period in Greece,that the moon looks larger, as it has the lesser distance from the other seasons.Got with my camera , and the extra gear, this shot .. just an offer for the EEV blog friends.The first are an crop with a bit of sharpening , the second are the image from the camera.enjoy ..
EEVblog site issues? - Page 1
Forum section: electronics / general

author: orbiter
author_rank: Frequent Contributor
timestamp: August 01, 2010, 02:49:45 pm
content: Is there a problem with EEVblog website today? I couldn't get on at all around 12.15 - 12.30pm. The site is still very slow loading again at around 3.30. All other sites seem to be working fine for me, just the EEV blog that seems very slow indeedorbiter

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 01, 2010, 02:53:22 pm
content: Same problems here ... the server looks to struggle to stay on-line .

author: EEVblog
author_rank: Unknown
timestamp: August 01, 2010, 10:04:18 pm
content: According to the server logs, the site has been throttled for a 183secons in the last 24hours. So that does not explain any outages.No idea, sorry. Maybe just my poor overworked shared server again. Probably time I got myself a dedicated server.Dave.

author: Valhallasmith
author_rank: Contributor
timestamp: August 02, 2010, 12:04:46 am
content: Quote from: EEVblog on August 01, 2010, 10:04:18 pmIf you are looking for a step up but not quite dedicated then SiteCloud.com and Rackspace have cloud hosting options. Actually, cloud hosting is probably the way to go. Its cheaper in the long run, can handle bursts of popularity and has less low level messing around than dedicated. Your site doesn't have anything that explicitly requires a dedicated server.

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 02, 2010, 01:25:33 am
content: I suggest using Bittorrent for the bandwidth-intensive video files.

author: EEVblog
author_rank: Unknown
timestamp: August 02, 2010, 03:19:06 am
content: Quote from: NiHaoMike on August 02, 2010, 01:25:33 amThat doesn't work for the Podcasters/iTuners etcDave.

author: EEVblog
author_rank: Unknown
timestamp: August 02, 2010, 03:20:42 am
content: Quote from: Valhallasmith on August 02, 2010, 12:04:46 amThanks, will look into them.The major problem would be the podcast video files. I'm doing almost 1TB of transfer per month now.Dave.

author: EEVblog
author_rank: Unknown
timestamp: August 02, 2010, 03:26:58 am
content: Hmm, sitecloud.com looks really good...Dave.

author: slburris
author_rank: Frequent Contributor
timestamp: August 02, 2010, 03:44:44 am
content: For a while I was getting something about "Temporary Site" when going to eevblog.comand eevblog.com/forum was saying not found. The temporary site looked seriously messedup, as if some style sheet was missing or something. Stuff looks normal now.This was from the US in California.Scott

author: EEVblog
author_rank: Unknown
timestamp: August 02, 2010, 04:08:42 am
content: Quote from: slburris on August 02, 2010, 03:44:44 amI had something similar this morning, the site was down at least 3 times. It's all my web sites too, not just eevblog.comHostmonster.com continued to work fine, so it certainly looks like my overworked shared server. i think almost 1TB of data per month and all those database accesses is too much for a standard shared server. The cloud solution looks good and is cheap. I've always feared being slashdotted and have my server go down for a few days!Dave.
Transistor Array And IR Emitters... - Page 1
Forum section: electronics / general

author: David
author_rank: Frequent Contributor
timestamp: July 30, 2010, 04:09:31 pm
content: Hi all,I may be being silly here so bare with me... I am designing a circuit which will drive some IR emitters from a dsPIC. The PIC runs off +3.3V and the diodes require 100mA each. I intend to use a ULN2003A transistor array to drive the necessary current. Now at 100mA the diodes have a typical voltage drop of 1.4V (1.7V max). The transistor array has a Vce saturation of 0.9V (1.1V max). So if I add the total voltage drop I get 2.3V leaving 1V across the current limiting resistor, hence I require a 10R resistor. Is this correct?Now the second question is that if I wanted to drive two IR emitters from a single I/O port could I just place them in parallel with a smaller limiting resistor?Cheers,Dave

author: Zero999
author_rank: Super Contributor
timestamp: July 30, 2010, 09:10:52 pm
content: You're not leaving yourself much headroom and no, never connect LEDs in parallel, use a separate resistor for each LED.

author: David
author_rank: Frequent Contributor
timestamp: July 30, 2010, 09:13:12 pm
content: Headroom as in current limiting or voltage? It looks as if I'm going to need a 5V supply for something else in the design now so that will solve the problem.
Unknown Motorola Chip - Page 1
Forum section: electronics / general

author: seanmatthew22
author_rank: Newbie
timestamp: July 30, 2010, 03:30:48 am
content: Hello,I have a 40 pin PDIP chip markedSC412428CP10284150E36FLLDC9349it has a Motorola logo on the top left and on the back its marked Hong Kong 13, i have several tubes of it though i cant seem to find a datasheet on it. If any one can help me identify it that would be great.ThanksSean

author: DJPhil
author_rank: Frequent Contributor
timestamp: July 30, 2010, 04:28:07 am
content: I think it might be a custom order mpu,see here. You may have the best luck contacting them directly.It's a total shot in the dark, but it may be a start.

author: Mechatrommer
author_rank: Super Contributor
timestamp: July 30, 2010, 05:31:20 am
content: where did you get it? maybe a "dark art custom built in house only" chip

author: seanmatthew22
author_rank: Newbie
timestamp: July 30, 2010, 04:48:29 pm
content: It would make since but odd at the same time because they are from my high school, they were given to me last year. I guess the next step would be to contact them.
Looking for a specific episode - Page 1
Forum section: electronics / general

author: hiwatt25
author_rank: Newbie
timestamp: July 29, 2010, 09:04:00 pm
content: I understand that the book "The Art Of Electronics" was mentioned in one episode. Does anyone know what number that episode was, I'd like to watch it. Frankly, I'd like to watch them all but I only just found the eevblog a couple weeks ago, it's gonna take me a while.Thanks!

author: logictom
author_rank: Unknown
timestamp: July 30, 2010, 01:07:08 am
content: Number 11I would save time by buying the book then watching the video

author: MrPlacid
author_rank: Frequent Contributor
timestamp: July 30, 2010, 03:13:04 am
content: Buy the student manual too. The student manual is soft cover. But when you buy the main book, go for the hard cover.

author: hiwatt25
author_rank: Newbie
timestamp: July 30, 2010, 02:37:47 pm
content: Thanks, just what I was looking for.I actually bought a copy of the book a couple of years ago on a whim and tried reading it straight through like a novel. That really didn't work too well for me so I shelved it but I'm anxious to put it to good use now that I'm starting back to school. I remember reading Kirchoff's law (sp?) near the beginning of the book and being blown away.Are the student manuals still available?

author: Mechatrommer
author_rank: Super Contributor
timestamp: July 30, 2010, 02:44:47 pm
content: AOE is becoming more useful when u have a basic background, and when you want to start to practical side.

author: MrPlacid
author_rank: Frequent Contributor
timestamp: July 30, 2010, 03:43:56 pm
content: Quote from: hiwatt25 on July 30, 2010, 02:37:47 pmI bought the student manual on ebay just not long ago.Yeah, I understand it being a little too advance. While reading it, i got that feeling. It scares me that it just might be too over my head;D
Power Supply Manufacturers - Page 1
Forum section: electronics / general

author: ngkee22
author_rank: Regular Contributor
timestamp: July 28, 2010, 06:54:47 pm
content: I looked around the forum and unless I am just missing it, I didn't see much on individual power supply manufacturers. I have been looking at Instek, Mastech, BK Precision, and Protek.I wanted to know what kind of power supplies everyone uses and what they think about some of the manufacturers.

author: Rhythmtech
author_rank: Regular Contributor
timestamp: July 28, 2010, 07:57:47 pm
content: Check this threads out...https://www.eevblog.com/forum/index.php?topic=683.0

author: ThunderSqueak
author_rank: Unknown
timestamp: July 28, 2010, 10:04:47 pm
content: I use an Acopian power supply for most work at home.http://www.acopian.com/
Need a transformer - Page 1
Forum section: electronics / general

author: easilyconfused
author_rank: Regular Contributor
timestamp: July 27, 2010, 01:45:13 am
content: I burned up the transformer in my Radio Shack Electronics Learning Lab. They don't list any parts for them as far as I can tell. This thing was glued in. I'm sure it wasn't intended to be replaced. Just the same-- I'd like to repair it if possible. It's got this number on top but it doesn't Google up. 102381690A. I realize any number of vendors may have stuff like this but I don't know how to do a search. Any suggestions? Thanks

author: joelby
author_rank: Frequent Contributor
timestamp: July 27, 2010, 02:16:06 am
content: Jaycar sells one:http://www.jaycar.com.au/productView.asp?ID=MM2532&keywords=MM2532&form=KEYWORDAs per your diagram, the primary impedance is 1K centre tapped, the secondary 8 ohms.

author: easilyconfused
author_rank: Regular Contributor
timestamp: July 27, 2010, 02:41:36 am
content: Quote from: joelby on July 27, 2010, 02:16:06 amThank YOU! That's it exactly!

author: Zero999
author_rank: Super Contributor
timestamp: July 27, 2010, 09:05:07 am
content: Where do you live?If it's in the US there's Digikey, order number: 146KHM-NDhttp://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=146KHM-NDhttp://www.hammondmfg.com/pdf/5c0045-46.pdfIt's much more expensive though, it's probably cheaper to buy a new learning lab and use the old one for spares.
general - Page 1
Forum section: electronics / general

author: mako
author_rank: Newbie
timestamp: July 25, 2010, 10:42:58 am
content: Moderator is this the right place?Hello guys my name is Manuel, I have some questions for adviceI just moved to Sydney with wife and babySorry if this is badly structured as I'm writting from a blackberry-firstly I'm looking where to buy my tools an pieces lijke multimeter, solder etc in sydney area- also what kind of job should I look for if I don't have yet my licence, I'm getting it hopefully soon, but it involves lots of paper work, and official translations,I have 5 years experience with educationbal robotic platforms (like lego nxt and vex)but opensource work with the olpc xo back in Colombia,Also servicing industrial pipe line robots like the quesI have an australian IT diploma, of when I used to live in sydney 6 years agoBut I'm looking forward in connecting with the industry here, my problem is the licence and getting all the paperwork doneAny idea is fully appreciatedPd, I program embedded c for avr and pic, and joomla alsoI'm not looking for a job here just ideas of which way is better to headThank you

author: EEVblog
author_rank: Unknown
timestamp: July 25, 2010, 11:05:53 am
content: Are you talking about a electricians license?An electronics job is totally different to an electricians job. You don't need any qualifications or license to work in electronics. So if you see an electronics job that you think you have the skills for, just apply.Jaycar and Altronics carry meters and tools. Dick Smith also, but less range. But like everything, online is often the best place to buy.Dave.

author: mako
author_rank: Newbie
timestamp: July 25, 2010, 11:57:21 am
content: Hi Dave tnx for the answer,I just ask cause the jobs I've seen advertised ask for cert 3 in electronics for assembling and others ask for the engineering qualificationBut I will try just sending as you advise my cvAlso I'm getting the tools online when I have internet connection in my house this weekThanks

author: Mechatrommer
author_rank: Super Contributor
timestamp: July 25, 2010, 01:37:05 pm
content: well, i live in the near end of the world, and DMM sells everywhere, shud be no problem finding any locally, but for DSO and more specialized tools, we dont have it here, sux! but as Dave mentioned, online is the best place for the best gears (and everything)... if you have the good money
India came out with its own Ipad device!!!! - Page 1
Forum section: electronics / general

author: doctorm
author_rank: Regular Contributor
timestamp: July 23, 2010, 07:40:22 pm
content: so this is my first contribution to the site on information that mighy be useful/interesting to anyone on here.so ive been monitoring the developement of india's own tablet computer, or a verision of their an Ipad that some are calling it.there are videos on youtube that show how it works in its prototype stages and it actually works really well considering that now the price of it will be $35.....yes $35!!!!!! im not kidding. somehow they got the price down to help college kids, with thigns such as word processor and stuff for classes, internet explorer, and video conferencing all run by a Linux system, which in my opinion probably helped in the cost reduction of the original $99 that was planned months back.i think this is a big achievement. from the videos it can be read in the sun, it can run on solar power alone (freaking amazing!!), and it has usb ports and stuff on it. much more than the Ipad can give a person i would think.i heard no reports about a US distribution but i would love to get my hands on some plans and see what they did.so yeah thought you all would enjoy that. Oh and i know its early to say but from all that i've seen and heard it could be a "sex on a stick" moment lol

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: July 23, 2010, 10:00:09 pm
content: By considering the size of India , the distribution , will be an success story ,even with out any international sale.So I wish too , good luck and success.
For all those who love Back to the Future - Page 1
Forum section: electronics / general

author: DJPhil
author_rank: Frequent Contributor
timestamp: July 06, 2010, 03:46:20 am
content: There's been a bit of a stir online as the movie's now 25 years old (released July 3, 1985). All sorts of lists and things are popping up about the little quirks and easter eggs in the movie.This one in particular is my favorite. The mall in the beginning of the movie changes name due to tampering in the past!

author: EEVblog
author_rank: Unknown
timestamp: July 06, 2010, 04:36:34 am
content: Can't believe I forgot all about the anniversary, thanks for the reminder!I had a hard time deciding if I should put JW or GW on my Flux Capacitor T-Shirt! I went with GW but of course still pronounce it JigowattsDave.

author: migsantiago
author_rank: Frequent Contributor
timestamp: July 06, 2010, 01:17:05 pm
content: Where did you take that picture Dave?

author: MyZirconia
author_rank: Contributor
timestamp: July 06, 2010, 01:35:40 pm
content: LOL Dave!That photo must be a photoshop work...Just kidding , nice picture did you sit in the car also?//Magnus

author: migsantiago
author_rank: Frequent Contributor
timestamp: July 06, 2010, 02:41:36 pm
content: A bluray edition is coming on october 2010.http://www.dvdtown.com/news/new-back-to-the-future-box-set-coming-to-blu-ray-and-dvd/7778It has some bonus material, including 16 unreleased scenes.I've heard that somebody is preparing a new BTTF movie, will it be a sequel or a prequel? Who knows...It sounds likely because other 80's movies have been recreated... for example, Karate Kid.Hey, watch a fake and funny BTTF 4 trailer

author: EEVblog
author_rank: Unknown
timestamp: July 06, 2010, 09:54:22 pm
content: Quote from: migsantiago on July 06, 2010, 01:17:05 pmIt's out front of the Back to the Future ride at Universal Studios Hollywood.Sadly the ride is now gone, replaced by The Simpsons Ride. The only ride left is in Japan.Dave.

author: ngkee22
author_rank: Regular Contributor
timestamp: July 07, 2010, 11:20:14 am
content: I remember that ride too. Except I rode it at Universal Studios in Orlando, FL. I had forgotten about it.

author: migsantiago
author_rank: Frequent Contributor
timestamp: July 07, 2010, 01:01:09 pm
content: Quote from: ngkee22 on July 07, 2010, 11:20:14 amHey, I visited that one too... 15 years agoIt was awesome.

author: logictom
author_rank: Unknown
timestamp: July 09, 2010, 06:33:19 pm
content: A mix of Terminator and Back to the Future

author: migsantiago
author_rank: Frequent Contributor
timestamp: July 22, 2010, 02:26:30 pm
content: Quote from: shafri on July 22, 2010, 11:32:38 amNice one! Move it to the logo contest thread, you have a good chance to win!
LDOs with low input voltage shutdown? - Page 1
Forum section: electronics / general

author: cksa
author_rank: Regular Contributor
timestamp: July 25, 2010, 01:13:20 pm
content: Hi,I was wondering how people normally design a linear regulator in a battery powered situation. For most linear regulators, let's say this one regulates to 3V. If the input voltage is say 2.5V, the output of this regulator will also be 2.5V. Surely this is a common problem? I want a regulator that automatically shutsdown completely when the output falls out of regulation (i.e. battery is low, and not to over discharge the battery). What are such linear regulators called? And if a particular regulator does not have this feature, how can I roll my own onto a standard regulator?

author: cksa
author_rank: Regular Contributor
timestamp: July 25, 2010, 01:21:26 pm
content: Well the CORE of my problem is that1) I am operating a device from a single cell lithium polymer battery, using a linear regulator, regulating to 3V.2) I do not want to over discharge this battery3) How can I ensure that I do not over discharge this battery?Thanks

author: Zero999
author_rank: Super Contributor
timestamp: July 25, 2010, 03:52:19 pm
content: You need brownout protection.By the way you were wrong earlier when you said when the input is 2.5V, the output will be 2.5V, in reality it will be significantly lower, unless you're using a top of the range LDO regulator.

author: jahonen
author_rank: Super Contributor
timestamp: July 25, 2010, 04:01:19 pm
content: You might consider using a regulator with a "power not good"-flag, and then shut the regulator down when this condition is indicated.Regards,Janne

author: Zero999
author_rank: Super Contributor
timestamp: July 25, 2010, 05:54:18 pm
content: That would work but they're a couple of things that I'd be concerned about.Ideally the power not good and disable flags should both be active low that way you should be able to just connect them together and it will work. You'll probably need a resistor and capacitor to the disable flag to ensure it it gets high pulse when the power is applied.
Forum stats -- what hapened at 3  March 2010 ?  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: July 16, 2010, 08:58:22 pm
content: Well if you visit the local forum stats page , you will see , that just for one day the forum had 223 visitors at 3 March 2010 .When the average number are very lower than that .https://www.eevblog.com/forum/index.php?action=statsSo my curiosity level jumped up , and I need to ask ... What happened that day ?What was the attraction ?

author: DJPhil
author_rank: Frequent Contributor
timestamp: July 16, 2010, 09:04:01 pm
content: That was right around when the Rigol hack first came out, or a little after. It probably got out and caused a spike in visits for a bit.

author: andri
author_rank: Contributor
timestamp: July 16, 2010, 10:03:42 pm
content: The Rigol topic was mentioned on Hackaday on 10th of March:http://hackaday.com/2010/03/10/50mhz-to-100mhz-scope-conversion/I guess that would be the cause of the spike.

author: rossmoffett
author_rank: Regular Contributor
timestamp: July 18, 2010, 06:07:06 pm
content: A lot of new people signed up and it led to the software hack being found too, that was a good day.
For Dave: B2TF Article - Page 1
Forum section: electronics / general

author: comox
author_rank: Regular Contributor
timestamp: July 19, 2010, 11:00:01 am
content: Dave, FYI:http://uk.movies.yahoo.com/blog/article/22162/back-to-the-future-where-are-they-now.html

author: EEVblog
author_rank: Unknown
timestamp: July 20, 2010, 04:27:27 am
content: Thanks for the memories!BTTF was on TV the other nightDave.
Who wants to put up their own satellite? - Page 1
Forum section: electronics / general

author: A-sic Enginerd
author_rank: Regular Contributor
timestamp: July 21, 2010, 09:27:26 pm
content: $8 Grand will get you there!http://www.wired.com/gadgetlab/2010/07/tubesat-personal-satellite/Not exactly sure what the hell I'd want to have it do, but I'm sure if I thought about it enough I could come up with something cool.

author: logictom
author_rank: Unknown
timestamp: July 21, 2010, 09:40:57 pm
content: Put me down for $20 towards it

author: Zero999
author_rank: Super Contributor
timestamp: July 21, 2010, 10:27:22 pm
content: It's short lived, for that amount of money, I'd want it to last for a few years, not months.

author: desolatordan
author_rank: Regular Contributor
timestamp: July 22, 2010, 12:22:59 am
content: They're very cool. We're finishing a 3U cubesat that will study the effects of the aurora on radio transmissions, will launch later this year. Also have a 1U cubesat in development with a camera onboard. I have some doubts that $8k will be sustainable, highly depends on the demand. Currently 1U cubesats can get a launch for under $50k.It's not just the USA either, there are a number of universities worldwide with cubesat projects in the works. Spain, Italy, Denmark, India, Japan, Poland, Germany, Turkey off the top of my head.
A new way for Dave to test overvoltage protection? - Page 1
Forum section: electronics / general

author: jimmc
author_rank: Frequent Contributor
timestamp: July 14, 2010, 10:47:44 pm
content: https://www.youtube.com/watch?gl=GB&v=THIUXnqXgrMJim

author: saturation
author_rank: Super Contributor
timestamp: July 14, 2010, 11:12:45 pm
content: Tesla did the same in the 1890s and he knew the theory well enough to know not he needn't wear the chain mail Faraday cage suits these fellows are.
xkdc: Circuit Diagram - Page 1
Forum section: electronics / general

author: Polossatik
author_rank: Frequent Contributor
timestamp: July 12, 2010, 03:21:37 pm
content: no further commentshttp://xkcd.com/730/

author: Zero999
author_rank: Super Contributor
timestamp: July 12, 2010, 04:36:38 pm
content: Old, already been posted a couple of times.https://www.eevblog.com/forum/index.php?topic=426.0https://www.eevblog.com/forum/index.php?topic=778.msg9452#msg9452

author: Polossatik
author_rank: Frequent Contributor
timestamp: July 12, 2010, 04:54:26 pm
content: ha well, that happens if a seach for XKDC gives no result.Migth be "old", stiil good

author: Zero999
author_rank: Super Contributor
timestamp: July 12, 2010, 06:11:34 pm
content: The forum's search engine is rubbish.Searching forhttp://xkcd.com/730/gives three results, including this one, unfortunately search results can't be linked to.
Cooking for Engineers - Page 1
Forum section: electronics / general

author: ThunderSqueak
author_rank: Unknown
timestamp: July 09, 2010, 03:56:56 am
content: Sick of mac'n'cheese, ramen and frozen pot pies?http://www.cookingforengineers.com/some of those look yumhttp://www.cookingforengineers.com/recipe/227/Ratatouille...now back to you're regularly scheduled program

author: RayJones
author_rank: Frequent Contributor
timestamp: July 09, 2010, 05:22:34 am
content: Quote from: ThunderSqueak on July 09, 2010, 03:56:56 amAh, Basil the Rat anyone?

author: Time
author_rank: Frequent Contributor
timestamp: July 09, 2010, 05:32:51 am
content: Microwaving bacon....DESECRATING THE FOOD OF THE GODS IS HERESEY!!Just kidding....cool - I am always playing in the kitchen, this interests me.

author: DJPhil
author_rank: Frequent Contributor
timestamp: July 09, 2010, 12:36:16 pm
content: I like the recipe layout there. If I ever stand a chance of cooking successfully it'll be with the help of a site like that.I half-expected to find a link to thebacon alarm clock.

author: A-sic Enginerd
author_rank: Regular Contributor
timestamp: July 09, 2010, 06:30:48 pm
content: Check out anything from Alton Brown.Wife has food network on the tube a lot. His show Good Eats....right up an engineers alley. He drives my wife nuts, but it's one of the few cooking shows I can actually sit and watch. Very techy in nature.
Any noobs in Sydney after a job? - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: July 06, 2010, 10:39:39 pm
content: I know of one that's going. Not design work, applications engineering and customer support, but not bad if you like playing with FPGA's and PCB's.Dave.

author: thedigitalprincess
author_rank: Contributor
timestamp: July 06, 2010, 11:21:49 pm
content: If you had asked me about 3 months ago............................................/Happy in current job

author: GeoffS
author_rank: Unknown
timestamp: July 07, 2010, 03:41:21 am
content: If only you'd asked me 30 years ago before I got sidetrack into IT

author: safarir
author_rank: Regular Contributor
timestamp: July 07, 2010, 11:56:34 am
content: I would like but I am 16020.2 km away

author: Zad
author_rank: Super Contributor
timestamp: July 07, 2010, 08:50:54 pm
content: 16,901.15 km here, that would be a hack of a commute

author: marianoapp
author_rank: Regular Contributor
timestamp: July 08, 2010, 04:09:08 am
content: 11850 km..http://www.wolframalpha.com/input/?i=distance+between+sidney+australia+and+alta+gracia+cordoba+argentina[i love wolfram alpha]

author: PeterG
author_rank: Frequent Contributor
timestamp: July 09, 2010, 01:34:41 pm
content: I'm in Granville. Where is it, how many hours and who do i call?

author: EEVblog
author_rank: Unknown
timestamp: July 09, 2010, 01:49:23 pm
content: Quote from: Darkman1969 on July 09, 2010, 01:34:41 pmYou have mail.You make your own hours pretty much, but it's a full-time entry level gig.Dave
this is for Dave !! - Page 1
Forum section: electronics / general

author: shodan
author_rank: Contributor
timestamp: July 08, 2010, 09:11:37 am
content: Hi,I just found the single most appropriate electronics project for this vblog !Back to the future + arduino = awesomehttp://www.instructables.com/id/Power-Laces-the-Auto-lacing-shoe/

author: EEVblog
author_rank: Unknown
timestamp: July 08, 2010, 10:09:03 am
content: I saw that, very cool!

author: TheWelly888
author_rank: Frequent Contributor
timestamp: July 08, 2010, 10:55:39 am
content: These remind me of a brief scene in the BBC sci-fi comedy "Red Dwarf", Lister and Rimmer had to wear "Escort Boots" while being taken from the brig of the Red Dwarf to the court. Sorry I couldn't find a YouTube clip.

author: RayJones
author_rank: Frequent Contributor
timestamp: July 08, 2010, 11:40:40 pm
content: Definitely a sporty model
DS1052E : My scope can't switch on. - Page 1
Forum section: electronics / general

author: PPscope
author_rank: Newbie
timestamp: July 07, 2010, 11:56:01 am
content: Hello,My scope is DS1052E, just bought from dealextreme few month ago.Today it can't switch on. I already contact Rigol support and waiting for their suggestion.I also need suggestion&help from people from this forum too.Thanks you.

author: wd5gnr
author_rank: Regular Contributor
timestamp: July 07, 2010, 12:56:07 pm
content: Probably silly, but I noticed the AC plug was unusually difficult to get to "lock" on the scope side. Make sure the cord is pushed in all the way. And yeah, I know you probably checked that already but thought it was worth mentioning. When I first got mine I went to move it and it died because the cord wasn't seated all the way. I always make sure to check that before I start a flash upgrade/downgrade.

author: PPscope
author_rank: Newbie
timestamp: July 07, 2010, 05:36:42 pm
content: I have check AC cable and replace with new cable.My DS1052E never do any modified or hacked.

author: Unknown
author_rank: Unknown
timestamp: July 07, 2010, 06:08:19 pm
content: Did you check power on the wall outlet? Does the Rigol scope have an externally accessible power fuse, and is it open? That's probably as far as you can go without voiding warranty, so I would follow Rigol's suggestions in that case, since it's likely to be a warranty repair/replacement.

author: saturation
author_rank: Super Contributor
timestamp: July 07, 2010, 06:54:27 pm
content: Its completely dead, not even the fan turns on?If you bought it from dealextreme shipped from China, I'm not sure if the warranty is valid your country. So wait for Rigol to reply, or try sending a note to your local Rigol authorized distributor in your country.If there is no help, or if you have to pay for repair, then its worth opening it to find out what happened.If its completely dead, hopefully its something simple like a lose connection internally. Often totally dead devices are related to the power supply, which is easier to fix than any other part of the scope.

author: PPscope
author_rank: Newbie
timestamp: July 07, 2010, 07:32:32 pm
content: The fan is not turn on. I think it's completely dead.I sent some suggestion request to service@rigol.com and info@rigol.com
I need an Prist for my DMM !! evil spirit took it over  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: July 06, 2010, 11:59:36 pm
content: Some times turns that the people who had the passion to stayLoyalin brand names ,they have accidents ..I was making some measurements , to check the calibration of my meters,and my portable Pros Kit ... was a bit off in 0-200 Oms ,so I opened it up to check if it has any calibration pots ..The past 20 years , all that I was care , was to open it, so to just replace the battery,never ever had pay attention at any internal detail of it .And now I got shocked ...

author: saturation
author_rank: Super Contributor
timestamp: July 07, 2010, 12:55:19 am
content: You don't like Mastech, 'Master-tech'? They are a fairly large ODM.http://www.p-mastech.com/aboutus.html#Since you've had it for 20 years you've proven its a good brand for your use. That close up looks like hand soldering.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: July 07, 2010, 03:16:13 pm
content: Quote from: saturation on July 07, 2010, 12:55:19 amYea yea yeaOk I have to admit it .. I hate MastechQuote from: saturation on July 07, 2010, 12:55:19 amRobots was expensive at 4 of November at 1993 , later on the prices dropped down .

author: Zero999
author_rank: Super Contributor
timestamp: July 07, 2010, 06:07:21 pm
content: Mastech are a cheap and nasty Chinese brand. I didn't even know they were more than 20 years old.A cheap and cheerful meter like the picture of the one you've posted can be bought for around £5, about $7.60 (US) and almost certainly isn't worth repairing, let alone calibrating.

author: saturation
author_rank: Super Contributor
timestamp: July 07, 2010, 07:04:12 pm
content: I'm not so sure they are that very poorly made, given K's meter is still working 17 years later. Their website claims they sell 2,500,000 devices a year, i don't know what year or if that's still current. But that they've been around and continue to be around means they are doing something right.They also make power supplies, and I think they are fairly decent. I wrote a review elsewhere. The linear supply is typical 1980s technology, and can be easily built by a good hobbyist. But its far cheaper to buy it than shop for the parts and assemble it myself. I'll be updating the review when I've time to run tests. Since the PSU is a cruder device than a DMM, I think its better made than many of their DMMs.https://www.eevblog.com/forum/index.php?topic=686.0That thread suggests Mastech maybe an ODM for other brands such as low end GWInstek PSU, but no confirmation.Quote from: Hero999 on July 07, 2010, 06:07:21 pm
Amprobe AM-160 Multimeter - Page 1
Forum section: electronics / general

author: flano
author_rank: Contributor
timestamp: June 28, 2010, 12:49:50 am
content: Hi,Anyone had any experience with this meter? The specs are very impressive.http://amprobe.com/cgi-bin/pdc/viewprod.cgi?pid=1914&tid=1&type=elecThanks Mike

author: Rhythmtech
author_rank: Regular Contributor
timestamp: June 28, 2010, 07:49:21 pm
content: I have anAM-105that I bought throughtequipment.netbecause they are closing them out for $45US. It's a decent meter for $45, but I would not have paid the $100 originally asked for it. The flip out support is good, but feels thin. The overall size of the unit has a bloated feel about it and the selector switch is a little stiff. I have complaints about the battery compartment also. The AM-160 is a newer model and may be built much better, but it is similar enough in appearance to make me believe it is not that different.Bottom line - For $100 I would have kicked myself repeatedly for not buying a low end Fluke instead. For $45 it is a really nice meter.The $245 for the AM-160 would leave me thinking that for myself I would rather have anAgilent U1242ainstead. That's just my personal opinion, data logging capabilities and the Agilent name. If you are stuck on getting an Amprobe, I wouldn't fault ya.EDIT: Somehow I missed the 50,000 count display on the AM-160, that might tip the scales a bit at that price point. It's starting to grow on me quite a bit more!

author: tequipment
author_rank: Regular Contributor
timestamp: July 02, 2010, 07:39:12 pm
content: Hey anyway you can fix that link? Its tequipment.NETThanks!

author: Rhythmtech
author_rank: Regular Contributor
timestamp: July 02, 2010, 09:57:58 pm
content: Quote from: tequipment on July 02, 2010, 07:39:12 pmOOps sorry about that. It was linked to the right place
Youtube leak - Page 1
Forum section: electronics / general

author: hans
author_rank: Super Contributor
timestamp: July 04, 2010, 01:51:00 pm
content: Hi everyone,Just wanted to make aware of this:There apparently are some very sad people that have found a hack on youtube. It makes them possible to execute their own scripts (even Javascript, how appaling is that!). Some may just block all comments and put up some stupid messages, some redirect you to some nasty sites. I haven't seen it on EEVblog video's (yet).. but it may happen (I see it on some other blogs about cars, that have about the same view count on video's).Apparently youtube hasn't responded to this yet, and haven't made a fix yet. This guy is suggesting the owner of the channel should block off these people. The problem is it's hard because people can just create a new account. Disabling comments for new video's is a though call as well..

author: safarir
author_rank: Regular Contributor
timestamp: July 04, 2010, 02:42:06 pm
content: Fake

author: hans
author_rank: Super Contributor
timestamp: July 04, 2010, 03:24:21 pm
content: Well, it seems to be fixed now:Before all further comments were unreadable. Now it just shows some code.

author: armandas
author_rank: Frequent Contributor
timestamp: July 04, 2010, 05:28:14 pm
content: Quick, somebody has to inform the president!
Testing Electronic Ignition - Page 1
Forum section: electronics / general

author: redek
author_rank: Contributor
timestamp: July 02, 2010, 10:17:31 pm
content: I need to test my car's Electronic Ignition this weekend, it won't start and has no spark. I found a repair manual online, but it says to check the resistance of the various parts in "w" instead of ohms. I guess I'm a little confused, any help would be appreciated.Thanks,Derek

author: NiHaoMike
author_rank: Super Contributor
timestamp: July 02, 2010, 10:44:58 pm
content: That's probably the old symbol for resistance.

author: DJPhil
author_rank: Frequent Contributor
timestamp: July 02, 2010, 11:19:34 pm
content: Quote from: NiHaoMike on July 02, 2010, 10:44:58 pmI've never seen it used this way before, but that's a lower case omega. We're all used to the upper case "?" for ohms. The numbers they list for testing the coils make sense as ohms so I think you're good to go.Hope that helps.
EEV t-shirts - Page 1
Forum section: electronics / general

author: logictom
author_rank: Unknown
timestamp: July 03, 2010, 02:09:28 am
content: Just a heads up to anyone thinking of picking up one of Dave's fine t-shirts there's a 4th of July sale on at Zazzle, 17.76% off every salehttp://zazzle.custhelp.com/app/answers/detail/a_id/430#ZAZZLEUSAUSAPicking up the FSM t-shirtJust to add, it's cheaper to buy off the US site with shipping to the UK than buying from the UK site, even without the sale.
Bad puns...  - Page 1
Forum section: electronics / general

author: ThunderSqueak
author_rank: Unknown
timestamp: July 04, 2010, 12:50:33 am
content: I was looking something up and came across this...Death by Multimeterhttp://msgboard.snopes.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=39;t=000945;p=1

author: safarir
author_rank: Regular Contributor
timestamp: July 04, 2010, 03:03:26 am
content: The internal resistance of a human body is between 300-1000ohm.9v/300ohm = 30 ma (The worst case senario, no battery internal resistance, full 9v in resistance test...)I personaly don't thing 30ma is enough to kill someone ...My 2c

author: ThunderSqueak
author_rank: Unknown
timestamp: July 04, 2010, 03:44:33 am
content: LOL, I was refering more to all the bad puns made after the question was asked in the post

author: RayJones
author_rank: Frequent Contributor
timestamp: July 04, 2010, 08:33:35 am
content: Sounds like he was testing an impulse response.

author: safarir
author_rank: Regular Contributor
timestamp: July 04, 2010, 02:46:24 pm
content: Quote from: ThunderSqueak on July 04, 2010, 03:44:33 amlol sorry, i just read the first post...

author: Simon
author_rank: Unknown
timestamp: July 04, 2010, 03:57:41 pm
content: thats a very funny thread

author: RayJones
author_rank: Frequent Contributor
timestamp: July 04, 2010, 10:59:15 pm
content: Gee, I've had a probe, but it looks like there's a lot of resistance to creativity here.

author: ThunderSqueak
author_rank: Unknown
timestamp: July 04, 2010, 11:12:04 pm
content: Ya, people just dont want to get amped up about it
Google chrome script for Digikey searches - Page 1
Forum section: electronics / general

author: DJPhil
author_rank: Frequent Contributor
timestamp: July 07, 2010, 03:10:11 am
content: Found thison reddit's /r/electronics and I thought you guys might find it useful.It's a google chrome script to take some of the suck out of Digikey's parametric search. I think I've got a reason to try out chrome now. I haven't found a greasemonkey script along the same lines that I like well enough to use yet.Still in development, but I like the way this guy thinks!

author: saturation
author_rank: Super Contributor
timestamp: July 07, 2010, 10:55:45 am
content: Nice, thank you!
Test your circuit diagnostic skills here - Page 1
Forum section: electronics / general

author: A-sic Enginerd
author_rank: Regular Contributor
timestamp: June 30, 2010, 10:56:50 pm
content: How's this for a little distraction?http://xkcd.com/730/

author: ThunderSqueak
author_rank: Unknown
timestamp: June 30, 2010, 11:23:11 pm
content: CRAP! Who leaked our companies intellectual property out ...must have been the guy we hired to open and close that switch really fast >< I knew we should have paid him moreoh well, live and learn

author: abbtech
author_rank: Contributor
timestamp: July 01, 2010, 02:21:06 am
content: I just built the circuit and seem to have a strange oscillation that I can't pinpoint. I think it might be the hot glue that I am using.Nevermind, I just figured it out, the tear collector was leaking into the Holy Water and contaminating it... Works great now!
Anyone play around with the older Adept robot modules? - Page 1
Forum section: electronics / general

author: KTP
author_rank: Frequent Contributor
timestamp: June 29, 2010, 07:47:19 pm
content: I am curious if any of you have messed around with the Adept H, M, and S series robot modules that use the Tamagawa TBL-S brushless motors (300 watt for M and H, 100 watt for S series). I have a bunch of them and have been tinkering a bit with controlling them with the EN-204 and EN-208 sinusoidal drives you can sometimes score cheap on ebay (step/dir inputs). I recently won a EXC controller though and may try to hook that up and see how it performs vs the Emerson drives. I don't really know what to build with these modules..they are kind of like a robot erector set for adults though...Edit: Here is the start of a gantry I was making out of a few of the modules. In the video I am moving about 20 pounds on the Y axis using a EN-204 drive at (I think it was) 2000IPM.
Electronic technology in bugs (audio/video surveillance devices) - Page 1
Forum section: electronics / general

author: cybergibbons
author_rank: Frequent Contributor
timestamp: June 29, 2010, 04:24:23 pm
content: I remember one of the reasons I first got into electronics was after watching the series"Bugs", which aired on BBC1 in the UK.A few years later, I bought a few of the audio bug kits from Quasar Electronics -they still sell them, but not in the UK. These were really basic transmitters, pretty small, but very low range, heavy on battery power, sensitive to the presence of humans and metal... essentially useless for actual bugging!Back then, the thought of hobbyists soldering SMD was ridiculous, so these were about as small as you could get. We also didn't have small, low power processors that can run for weeks off a small battery.There's also so many tiny wireless devices coming out of Hong Kong, though after taking a few of these 2.4Ghz devices apart, it's quite clear why they are so small and cheap.So the question is, why does the internet seem devoid of interesting pages on the technology behind surveillance electronics? Has anyone found any?

author: saturation
author_rank: Super Contributor
timestamp: June 29, 2010, 06:08:48 pm
content: In the US portions of what's called surveillance devices are sold as 'security' devices such as remote cameras, motion detectors, sound recorders etc., what made them more specialized was using RF to transmit the collected data, but with wifi and 3G cellphone style connections, its easier than ever to bug something.Some websites say surveillance is a big thrust in consumer electronics.http://www.reportbuyer.com/computing_electronics/security/consumer_do_it_yourself_diy_surveillance.html
GW Instek Oscilloscopes - Page 1
Forum section: electronics / general

author: djsb
author_rank: Super Contributor
timestamp: June 29, 2010, 10:46:40 am
content: Hi,I heard mention of a GW Instek Oscilloscope on Dave's 2nd Live show that has specs that exceed the Rigol scopes. Can anyone expand on this? Thanks.David.

author: EEVblog
author_rank: Unknown
timestamp: June 29, 2010, 11:59:57 am
content: https://www.eevblog.com/forum/index.php?topic=734.0Dave.

author: saturation
author_rank: Super Contributor
timestamp: June 29, 2010, 12:18:24 pm
content: Interestingly, I forgot to mention that the Instek 1062A is so much like the Rigol 1052E in many ways, including about 90% of the GUI, that I wonder if its made by Rigol ..... a dissection would certainly help ....https://www.eevblog.com/forum/index.php?topic=553.msg7844#msg7844