hybridfree/eevblog-posts huggingface dataset:
Toggle Switches - 4PDT ON-ON-ON - Page 1
Forum section: electronics / general

author: LEECH666
author_rank: Frequent Contributor
timestamp: March 25, 2012, 04:22:45 pm
content: Sorry to ask this question, but wouldn't the name 4P3T (Four Pole Tripple Throw) be way more accurate to describe an ON-ON-ON switch with three lever positions? Yet I find 4PDT (Four Pole Double Throw) switches on Digikey and other pages that come in an ON-ON-ON configuration.I find this misleading and think only real 4PDT with two lever positions should be names as such.Florian

author: robrenz
author_rank: Super Contributor
timestamp: March 25, 2012, 05:58:56 pm
content: One throw = 2 positions like ON - OFFTwo throw (double) = 3 positions like ON - OFF - ONI think of the throw as the movement from one position to the next.

author: oPossum
author_rank: Super Contributor
timestamp: March 25, 2012, 11:13:00 pm
content: Single throw = NO -or- NC contact(s)Double throw = NO -and- NC contact(s)What you want is a threepositionswitch

author: Mattwarne
author_rank: Contributor
timestamp: March 26, 2012, 06:41:19 am
content: Good questionHere is a helpful video on the subject done by colin cunningham for make.http://blog.makezine.com/2011/06/27/collins-lab-switches/Matt

author: LEECH666
author_rank: Frequent Contributor
timestamp: March 26, 2012, 09:13:37 am
content: Maybe it's because of the language barrier. German is my native language after all.Thanks for the link, I'll check it out later.,Florian
Kelvin 4 wire resistance - Page 1
Forum section: electronics / general

author: king.oslo
author_rank: Frequent Contributor
timestamp: March 20, 2012, 11:17:56 pm
content: Hello there,I compiled some kelvin measuring test leads today. Unfortunatly, I managed to short the two high potential and two low potential conductors before the tip if the clips themselves.I was devestaed when I found out. I was thinking that it would cause inaccuracy because of the contact resistance. But after thinking about it, I came to the conclusion that it doesn't matter, because I theorise that the current levels wouldnt change anyway.What is correct?Thank you for your time.Kind regards,Marius

author: ejeffrey
author_rank: Super Contributor
timestamp: March 20, 2012, 11:24:11 pm
content: It will make a difference because your voltage measurement will be different than if the voltage probes were directly on the DUT. Whether that is at all relevant depends on what you are measuring and how much accuracy you require.

author: king.oslo
author_rank: Frequent Contributor
timestamp: March 20, 2012, 11:59:42 pm
content: Quote from: ejeffrey on March 20, 2012, 11:24:11 pmWhat level of error are we talking here?M

author: ejeffrey
author_rank: Super Contributor
timestamp: March 21, 2012, 12:03:15 am
content: I guess 10s of milliohm. Depends on the state of the contacts.
error loading top and bottom of page - Page 1
Forum section: electronics / general

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 20, 2012, 08:59:52 am
content: error loading top and bottom of page

author: Psi
author_rank: Super Contributor
timestamp: March 20, 2012, 09:19:05 am
content: Yeah, it's the banner ad providers issue. They keep breaking their ads.Solution.. edit the webserver config so it doesnt display "Not Found" errors at all.
Tektronix 466 intensity and focus problem - Page 1
Forum section: electronics / general

author: TheOscilloscope
author_rank: Newbie
timestamp: March 20, 2012, 04:22:53 pm
content: Well, the tektronix 466 oscilloscope that I have is almost working like it is supposed to. I finally was able to get a trace on the screen by replacing some of the low voltage power supplies. Then I noticed I could not get the intensity control to adjust the intensity of the display. All it does is adjust the focus of the trace a little. I know something is wrong because the manual says to adjust the intensity control for +20V on TP1443 and then adjust R1454 (crt grid bias) for dimmest visible dot on the display, however, I am only getting +7V on TP1443. I was wondering if anyone has ever seen a problem like this before or would know what the problem might be?

author: Psi
author_rank: Super Contributor
timestamp: March 20, 2012, 09:01:50 pm
content: Do you have the circuit diagram?Follow this +7V to its supply rail and check it at that point.

author: tekfan
author_rank: Frequent Contributor
timestamp: March 20, 2012, 09:26:58 pm
content: I would check the HV board.First inspect it visually. If it's very dirty with black dust on it then clean it. It can create leakage paths which can cause poor regulation of the HV.Second, check resistors with a multimeter. Some Tek scopes had problems with high value resistors drifting to even higher values and causing the problem you describe.The resistors may be completely open.Also check that the low voltage supply rails are within spec. Also check their ripple with the multimeter set to AC. This is all described in the calibration section.

author: wkb
author_rank: Super Contributor
timestamp: March 20, 2012, 09:48:13 pm
content: To be a bit more specific on the resistors drifting to higher values: I found in a Tek 2213a these were in the focus circuit.A whole bunch of them were connected in series, with some, but not all, gone all the way to (IIRC) 1.5M? or so.

author: Kilroy
author_rank: Regular Contributor
timestamp: March 20, 2012, 11:12:12 pm
content: Quote from: tekfan on March 20, 2012, 09:26:58 pmYeah...high voltage board for sure. First place you look in HP scopes as well.

author: TheOscilloscope
author_rank: Newbie
timestamp: March 20, 2012, 11:38:26 pm
content: Thanks for all the suggestions. Well, my trace on the screen went away and the storage board seems to not be getting power either. The HV board is very dirty. I will try cleaning that first.
Canyoning Quadcopter - Page 1
Forum section: electronics / general

author: Pat Pending
author_rank: Regular Contributor
timestamp: March 20, 2012, 05:36:41 am
content: FFW to 6:30 for canyon footage. Ok, it's a big canyon. The video footage is quite smooth because of a stabilized camera mount,but it may be that the footage has gone through an additional software stabilization pass.

author: Psi
author_rank: Super Contributor
timestamp: March 20, 2012, 06:06:23 am
content: Very nice.If it had some rocket motors it would be awesome.

author: EEVblog
author_rank: Unknown
timestamp: March 20, 2012, 08:08:45 am
content: If that thing crashed, it's toast.Dave.

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 20, 2012, 09:08:52 am
content: amazing that it can lift 800g

author: slateraptor
author_rank: Frequent Contributor
timestamp: March 20, 2012, 06:16:47 pm
content: Phenomenal.
Experience with EETimes - Page 1
Forum section: electronics / general

author: Write_to_Smokegenerator
author_rank: Regular Contributor
timestamp: March 19, 2012, 08:08:44 pm
content: I found this website todayhttp://www.eetimes.com/electrical-engineers/education-training/courses/fundamentalsmembership should be free, there is also a premium membership availablelooks interesting but i don't know if it's any good?Anyone Experience with that Webinar's?(f.e are there hidden costs or is the content good/bad)cheers

author: Bored@Work
author_rank: Super Contributor
timestamp: March 19, 2012, 08:57:01 pm
content: EETimes is an industry rag, just like Electronic Design or EDN. These rags are all about advertising. To attract advertisers they try to mix content in between all the advertising which in turn should attract readers. Or, to put it the other way around, they sell their readership to advertisers.Their primary focus is therefore to create an advertiser-friendly environment. And when companies want to see their webinars promoted, they put them up as courses. Expect to get advertising material billed as a course. Occasionally there is a gem in all this advertising material, but it can take a lot of your time to find the gems in all the BS.

author: Write_to_Smokegenerator
author_rank: Regular Contributor
timestamp: March 19, 2012, 10:24:07 pm
content: The thing about advertising was to be expected because a company wants to increase their income.But i didn't expect that the material itself would be BS.thx for the reply
Musical Tesla Coils  - Page 1
Forum section: electronics / general

author: stl
author_rank: Contributor
timestamp: March 15, 2012, 09:34:28 pm
content: Had to share this with you:http://youtu.be/bbLshnfu0wY

author: damo
author_rank: Contributor
timestamp: March 16, 2012, 04:39:07 am
content: Totally coolioReminds me of the movie Sorcerers Apprentice with Nicholas Cage.

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 19, 2012, 11:06:47 am
content: thats awesome
US National Public Radio Retracts Apple Hit Piece - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: March 17, 2012, 10:47:04 am
content: Greetings EEVBees:--We have all had our problems with Wun Hung Lo, over the years, but making false horrendous accusations, merely clouds the issue. See link below for a CBS article, about how NPR was caught with their thumb on the scales and, was forced to retract a vicious hit piece on Apple and Foxconn.http://www.cbsnews.com/8301-501465_162-57399039-501465/this-american-life-retracts-apple-foxconn-episode/--I am all in favor of domestic sourcing, but this is a bridge to far."When people thought the Earth was flat, they were wrong. When people thought the Earth was spherical they were wrong. But if you think that thinking the Earth is spherical is just as wrong as thinking the Earth is flat, then your view is wronger than both of them put together."Isaac Asimov 1920 - 1992

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: March 17, 2012, 11:54:41 am
content: Gotta wonder about the motives for all this garbage.

author: MikeK
author_rank: Super Contributor
timestamp: March 19, 2012, 12:08:36 am
content: Unlike regular mainstream media who never retract anything.
Identities of the two leading audiophile researchers uncovered! - Page 1
Forum section: electronics / general

author: kj5cn
author_rank: Contributor
timestamp: March 18, 2012, 05:48:06 pm
content: In the lab, tweaking. Notice the cutting-edge test gear...

author: olsenn
author_rank: Frequent Contributor
timestamp: March 18, 2012, 06:16:02 pm
content: They don't monkey around

author: nanofrog
author_rank: Super Contributor
timestamp: March 18, 2012, 06:55:08 pm
content: Nelson Pass and John Curl maybe?DIY Audio forum members would get a good kick out of this one.

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 18, 2012, 06:57:31 pm
content: Until recently, people suspected these two:

author: tekfan
author_rank: Frequent Contributor
timestamp: March 18, 2012, 07:05:32 pm
content: Quote from: cybergibbons on March 18, 2012, 06:57:31 pmMark Levinson and Rupert Neve?

author: Tube_Dude
author_rank: Regular Contributor
timestamp: March 18, 2012, 07:19:02 pm
content: Not me. I have already found the perfect amplifier...

author: Ajahn Lambda
author_rank: Regular Contributor
timestamp: March 18, 2012, 09:23:01 pm
content: Quote from: kj5cn on March 18, 2012, 05:48:06 pmDammit, I told my lab assistant, no pictures!
bunnie Huang releases open-source geiger counter reference design - Page 1
Forum section: electronics / general

author: slateraptor
author_rank: Frequent Contributor
timestamp: March 17, 2012, 11:47:28 pm
content: Safecast Geiger Counter Reference DesignEDIT:Jeff Keyzer's geiger counter designdeserves a mention...of course, Amp Hour listeners probably know all about it.

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 18, 2012, 04:01:41 am
content: It would be interesting to be able to also use it as a hardware random number generator.

author: Zad
author_rank: Super Contributor
timestamp: March 18, 2012, 05:51:12 am
content: Very laudable, and a sexy enclosure for it, but essentially just another GM tube detector. I have seen a (small) amount of work done with semiconductor radiation detectors, and I think this has to be the way forward with regards to battery life and integration into end products such as phones, watches, cars, USB devices etc.

author: slateraptor
author_rank: Frequent Contributor
timestamp: March 18, 2012, 11:48:42 am
content: Quote from: Zad on March 18, 2012, 05:51:12 amFor me, the real take-home message of the post came in bunnie talking about the evolution of his design iterations: initial thoughts, what did and didn't make it and why. These are aspects most will never hear about outside of direct involvement with an engineering design team. Similarly, it's also what I feel makes Dave's recent videos so valuable.bunnie mentioned that one of his design goals was for the capability of detecting not just gamma but alpha and beta particles as well, which ultimately drove the decision to use a much larger detector. Seeing as how there seems to be a direct correlation between detectable particles and detector size, would these semiconductor radiation detectors have such capability?
Magnetic components. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: March 15, 2012, 03:50:15 pm
content: I have just found that all the capacitors that I have are made with iron or steel connecting wires while all the resistors have copper wires on further trial I found that the majority of metal oxide resistors are strongly magnetic on the main body. has any one else found this. Also does any one know what the metal film resistors are made from as I understood that it was tin oxide but I tin is not magnetic.

author: T4P
author_rank: Super Contributor
timestamp: March 15, 2012, 04:43:52 pm
content: Hmm , just a short check on wiki claims < note the use of the word 'claims'Tin oxide for metal oxides ... Hmm , no idea .QuoteNiCr ? Not much of a idea anyway .I tried your theory and yes , they all stick , my metal film , carbon film , all of them stick .I have a odd 5% resistor in a blue case . Hmm . It sticks too .

author: westfw
author_rank: Super Contributor
timestamp: March 15, 2012, 07:41:52 pm
content: Steel end caps crimp the leads onto the ceramic body. Many data sheets have a detailed drawing.

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 16, 2012, 10:18:03 pm
content: yep mine all stick.it can't be a problem though.i dont use smd's do they stick?

author: robrenz
author_rank: Super Contributor
timestamp: March 17, 2012, 01:53:42 am
content: Ithinkthe metalization on theendsof smd resistors is nickel and nickel is magnetic. (not the resistive element)

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 17, 2012, 07:38:44 am
content: easy to pic up if you drop a load
can someone email me Rev C? - Page 1
Forum section: electronics / general

author: ElectronicFanatic1
author_rank: Contributor
timestamp: March 15, 2012, 05:50:28 pm
content: The Internet I'm using blocks me from downloading the PDF, could someone email a JPEG or similar form to me please??Mcquiring@hotmail.comThanks!!Mitch

author: DonRon
author_rank: Regular Contributor
timestamp: March 15, 2012, 06:33:44 pm
content: Hi Mitch,Rev C of what??greet'sRonald

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 15, 2012, 06:42:50 pm
content: The schematic is linked in the #259 thread.

author: ElectronicFanatic1
author_rank: Contributor
timestamp: March 15, 2012, 07:51:16 pm
content: Rev C of Daves Schematic. I can't get the PDF and I was wondering if someone would send me a JPEG copy
OZ Company CAP-XX SuperCap To Help Lead-Acid Batteries In Start-Stop Cars - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: March 13, 2012, 06:44:15 am
content: Greetings EEVBees:--See link below for an article from The Register about an Australian company that is going produce a "Battacitor" to take some of the load off Lead-Acid batteries, which tend to fail early when asked to start the engines of Start-Stop cars many thousands of times per annum.http://www.theregister.co.uk/2012/03/12/nanocapacitor_car_battery/"I've found out so much about electricity that I've reached the point where I understand nothing and can explain nothing."Pieter van Musschenbroek 1692 -1761Best RegardsClear Ether

author: Hypernova
author_rank: Unknown
timestamp: March 13, 2012, 12:51:53 pm
content: cool, looking forward to some competition to the current crop of 2600F Maxwell caps used for diesel engine start ups on ebay.

author: G7PSK
author_rank: Super Contributor
timestamp: March 13, 2012, 03:48:24 pm
content: The Military already use this type of technology to start tanks and submarines. But certainly a good idea for start stop cars, city traffic jams could kill a lead acid battery in hours not months.

author: vk6zgo
author_rank: Super Contributor
timestamp: March 14, 2012, 01:15:03 pm
content: Some OZ made cars utilise the rather stupid expedient of reducing charging current to the battery to remove load on the engine,& hence notionally improve fuel consumption.The trouble is,it gets all stuffed up & ends up not charging the battery sufficiently,so you try to start your carone morning,&----CLICK!No start!The big caps may be a way around this problem.Of course,if they left the alternator alone,it would charge the battery OK,but that would be too much to ask from car designers!

author: slateraptor
author_rank: Frequent Contributor
timestamp: March 14, 2012, 02:52:47 pm
content: Whatexactlyis a "start-stop car"?

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 14, 2012, 03:09:24 pm
content: Quote from: slateraptor on March 14, 2012, 02:52:47 pmOne that still has gas and working brakes.
You are all saved. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: March 14, 2012, 01:02:04 pm
content: Salvation is here.Never be up that creek again without a paddle.

author: vk6zgo
author_rank: Super Contributor
timestamp: March 14, 2012, 01:05:19 pm
content: Do they stock barbed-wire canoes,too?

author: SoftwareSamurai
author_rank: Regular Contributor
timestamp: March 14, 2012, 01:49:36 pm
content: Do they deliver?

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 14, 2012, 05:42:38 pm
content: Quote from: SoftwareSamurai on March 14, 2012, 01:49:36 pmShit rolls down hill, so just stand at the bottom and catch.

author: Ajahn Lambda
author_rank: Regular Contributor
timestamp: March 14, 2012, 05:45:57 pm
content: Just keep your mouth closed through the deep parts.
Flying Delorean - back to the future :D - Page 1
Forum section: electronics / general

author: ThunderSqueak
author_rank: Unknown
timestamp: March 13, 2012, 06:53:52 pm
content: this made me smileBack to the future flying Delorean

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 13, 2012, 08:27:49 pm
content: https://www.eevblog.com/forum/general-chat/bttf-delorean-quadcopter/msg97094/?topicseen#msg97094

author: ThunderSqueak
author_rank: Unknown
timestamp: March 13, 2012, 09:20:26 pm
content: Weird, I did a quick search before I posted it ^^;; Still cool though :>
star rating posts - Page 1
Forum section: electronics / general

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 13, 2012, 06:41:58 pm
content: is it a once only rating.i've seen posts improve as they aged like a good corned beef.

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 13, 2012, 08:29:33 pm
content: Quote from: siliconmix on March 13, 2012, 06:41:58 pmWell, hopefully those that come along that haven't voted yet will be able to increase the star ratings. Or decrease if needed.

author: EEVblog
author_rank: Unknown
timestamp: March 14, 2012, 03:02:46 am
content: Yes, the average displayed vote is designed to change as more people vote.Dave.
ebays unpaid item policy sucks - Page 1
Forum section: electronics / general

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 12, 2012, 03:04:56 pm
content: what deterrent is there for buyers .i think if the buyer doesn't pay up and they have a paypal account there account should go in arrears to that value.

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 12, 2012, 03:18:34 pm
content: eBay has changed into all buyer place. Fees are crazy high now too. I will continue to purchase things on eBay, but find I make as much selling locally with CraigsList or similar other methods, once you take eBays cut out of things.

author: siliconmix
author_rank: Frequent Contributor
timestamp: March 12, 2012, 08:01:06 pm
content: i get what you mean.as for the ebay being an all buyer place.well you have to have sellers from which to buy.

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 13, 2012, 01:20:33 am
content: ebay is trying to become a clearing house for stored, ala Amazon, rather than a person to person auction.
DIPtrace Partner - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: March 11, 2012, 09:00:45 am
content: Just letting people know that thanks to Stanislav Ruev, I'm now officially a DIPtrace partner.So if you like the package and are interested in purchasing it, if you buy any level version through the links on my website, I get a very substantial commission.www.eevblog.com/diptraceSo it's another way to support the blog, like with Amazon.Dave.

author: firewalker
author_rank: Super Contributor
timestamp: March 11, 2012, 09:22:38 am
content: Can you explain the "partner" little bit more? Only a sales partner, or you will be testing and suggesting changes bla bla bla..Alexander.

author: harnon
author_rank: Regular Contributor
timestamp: March 11, 2012, 09:23:00 am
content: I'm saving up for the lite version... you may hear from me in the next 6-12 months

author: ChrisW
author_rank: Contributor
timestamp: March 11, 2012, 11:09:16 am
content: You li'l RIPPA! You beauty!

author: Unknown
author_rank: Unknown
timestamp: March 11, 2012, 11:16:24 am
content: Is this some sort of endorsement? What kind of tech support will you provide as a partner?

author: EEVblog
author_rank: Unknown
timestamp: March 11, 2012, 11:21:17 am
content: Sorry, incorrect term."Affiliate" is more like it.Similar to being an Amazon affiliate.There is the option to be an official local "dealer", which would involve support etc, but I have not taken that up.Dave.

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: March 11, 2012, 11:25:54 am
content: At any rate, good luck with it!

author: EEVblog
author_rank: Unknown
timestamp: March 11, 2012, 11:45:12 am
content: Quote from: alm on March 11, 2012, 11:16:24 amWell, kind of. I don't think it's crap, otherwise I wouldn't have it on my site.They seem like a good small company with a good product at good price points, in a market I'm very interested in, so I was happy to join their affiliate program when they offered it.Dave.

author: Rufus
author_rank: Super Contributor
timestamp: March 11, 2012, 03:17:03 pm
content: Quote from: EEVblog on March 11, 2012, 09:00:45 amYou should ask Altium for similar status - lol.

author: firewalker
author_rank: Super Contributor
timestamp: March 12, 2012, 08:37:56 am
content: DipTrace link is missing from some pages.Alexander.

author: EEVblog
author_rank: Unknown
timestamp: March 12, 2012, 10:46:12 am
content: That's just a cache issue I think.Dave.
BTTF DeLorean Quadcopter - Page 1
Forum section: electronics / general

author: sonicj
author_rank: Frequent Contributor
timestamp: March 12, 2012, 02:04:12 am
content: thats ridiculously awesome.

author: EEVblog
author_rank: Unknown
timestamp: March 12, 2012, 02:05:18 am
content: Quote from: sonicj on March 12, 2012, 02:04:12 amSeconded!Dave.

author: Psi
author_rank: Super Contributor
timestamp: March 12, 2012, 07:40:31 am
content: OMG, i want one!All it needs is a model rocket engine at the back to create sparks and momentary forward thrust when you flip a switch.
Why Digikey Parametric Search and Ti's Site Hanging on My IE8 WinXP Browser? - Page 1
Forum section: electronics / general

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 11, 2012, 01:48:04 am
content: i've been in pain searching for part. digikey is the best parametric search i know so far, last time its working but now (few months already) it keep hanging. i have to disconnect internet connection and then the "half loaded" table will appear. reconnect internet to further filter and search, disconnect to reveal the table, and keep doing that until i get what i'm looking for. most of the time it will go back to initial stage where "no item found" etc, really frustrating.anybody have this experience or any idea how to solve this?or can anybody give suggestion for ee part parametric search alternative?

author: sonicj
author_rank: Frequent Contributor
timestamp: March 11, 2012, 01:55:21 am
content: have you tried another browser? chrome, firefox?

author: Unknown
author_rank: Unknown
timestamp: March 11, 2012, 01:57:46 am
content: First a rant: for the sake of everybody involved in web development, please use a less ancient and crappy browser, like Firefox, Chrome, Safari or Opera. If you must use IE, at least use IE9. IE8 support costs our front-end devs more time than all other browsers combined, and we don't even strive for the same performance and level of features for IE8.That said, this sounds like an issue with your internet connection, home router or TCP stack. Do you have the same issue in other browsers? What if you boot from an Ubuntu live CD?

author: T4P
author_rank: Super Contributor
timestamp: March 11, 2012, 10:37:34 am
content: Quote from: alm on March 11, 2012, 01:57:46 amOpera and Chrome and Firefox is okay , safari is bullshit .Chrome/Rockmelt/Chromium(the Open source version)/SRWare Iron/Comodo DragonFirefox/Palemoon << palemoon is a speedier version .

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 11, 2012, 02:17:14 pm
content: chrome fixed that, better now. thanks alot guys.
They don't have this at Crufts! - Page 1
Forum section: electronics / general

author: FreeThinker
author_rank: Frequent Contributor
timestamp: March 10, 2012, 11:29:50 pm
content: Found this on YouTube, Hilarious???Wonder how they trained it?

author: george graves
author_rank: Super Contributor
timestamp: March 11, 2012, 01:59:51 am
content: mmmm....ok.
MATLAB easter egg - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: March 09, 2012, 02:14:37 am
content: Hey, I found this easter egg when I was using MATLAB and I figured I would share it.I am sure some of you have already seen it but for those who have yet to see it here it is.

author: AlphZeta
author_rank: Regular Contributor
timestamp: March 09, 2012, 07:59:47 pm
content: Just tried on my MATLAB 7 installation, it worked! This is awesome!
Circuit Cellar digital edition logon problem. Anyone else got problems? - Page 1
Forum section: electronics / general

author: wilfred
author_rank: Super Contributor
timestamp: March 08, 2012, 10:39:06 pm
content: /.

author: EEVblog
author_rank: Unknown
timestamp: March 08, 2012, 11:52:49 pm
content: FYI about Circuit Cellar, I'm going to be featured in next months edition.Dave.

author: SeanB
author_rank: Super Contributor
timestamp: March 10, 2012, 10:13:00 am
content: 15 characters works for me, I like the digital edition, the print version got way too expensive. Each issue worked out to close to $25. The whole year now costs near that.
US Awards Phillips 10 Million For Perfecting 50$ LED Bulb - Huh? - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: March 10, 2012, 06:53:50 am
content: Greetings EEVBees:--See below link for Washington Post article about Phillips winning $10,000,000 L prize for a $50 LED bulb. Coming up next, a $5,000,000 prize for the $5 banana and a $10,000 rebate for buying a Volt.http://www.washingtonpost.com/business/economy/government-subsidized-green-light-bulb-carries-costly-price-tag/2012/03/07/gIQAFxOD0R_story.html--If you get stopped by the WaPo paywall, just delete any WaPo cookies."Business is never so healthy as when, like a chicken, it must do a certain amount of scratching around for what it gets."Henry Ford 1863 - 1947Best RegardsClear Ether

author: slateraptor
author_rank: Frequent Contributor
timestamp: March 10, 2012, 07:15:20 am
content: You would think that a US$10-million bounty would be sufficient to offset the assumed costs of R&D passed down to customers...obviously not.

author: T4P
author_rank: Super Contributor
timestamp: March 10, 2012, 07:18:01 am
content: 10 watt bulb for $50 ... Rather costly but i have seen a 12W LED going for $70 .But ! That kind of thing gets so much money ?Wouldn't a LED fixture net you 40,000,000 ? No . They won't .Engineers knew and used LED's since a long time ago , i just get very mindblowned to figure out how phillips won the award ... Hmm .Using a off the shelf driver and off the shelf heatsink and a off the shelf LED gets you 10 million dollars ? Really ?

author: slateraptor
author_rank: Frequent Contributor
timestamp: March 10, 2012, 07:42:37 am
content: Quote from: Dave.S on March 10, 2012, 07:18:01 amIf anything was "off the shelf", it'd be off their in-house R&D shelf. Surely, their sol'n isn't as trivial as you suggest.

author: T4P
author_rank: Super Contributor
timestamp: March 10, 2012, 08:25:49 am
content: Well those heatsinks can be found anywhere . Well say anywhere i mean E14/Premier Farnell .I don't really like phillips lumileds i prefer cree xp .

author: SgtRock
author_rank: Unknown
timestamp: March 10, 2012, 09:03:02 am
content: Dear DaveS:--I agree, Cree is setting the curve. Silicon carbide rules the roost at the moment. See below for a link to the AmpHour interview by Dave and Chris of John Edmond, co-founder of Cree, Inc. One of the best, and most interesting AmpHours ever.http://www.theamphour.com/2011/11/28/the-amp-hour-71-luciferous-led-lucubrator/--Most highly recommended. I give it five photons. *****"When people thought the Earth was flat, they were wrong. When people thought the Earth was spherical they were wrong. But if you think that thinking the Earth is spherical is just as wrong as thinking the Earth is flat, then your view is wronger than both of them put together."Isaac Asimov 1920 - 1992
ESD wrist bands resistance  - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: March 09, 2012, 06:29:31 pm
content: I have just purchased my first ESD wrist band after years of using one I made. I always thought that the resitance should be around 1 meg ohm I measured the new one and it is 1 meg and so is the plug giving 2 meg overall is this normal.

author: T4P
author_rank: Super Contributor
timestamp: March 09, 2012, 07:00:55 pm
content: 1 meg to earth is normal .2 meg ? no problem .
PDF datasheets on Kindle - Page 1
Forum section: electronics / general

author: bkochis
author_rank: Contributor
timestamp: February 20, 2012, 03:29:40 pm
content: Just wanted people to know that my brother-in-law, the Kindle aficionado, recommended a utility k2pdfopt.exehttp://www.willus.com/k2pdfopt/allows you to convert PDF files to read on your Kindle.The utility will allow you to convert pages, ignore whitespace, clip graphics into separate pages, etc.I have not used any of the optional settings on the utility. I merely dragged and dropped a datasheet onto the utility, selected NO options and (as magicians say) poof, bang, voila I get a perfectly readable datasheet on my Kindle.A 48 page PDF from Microchip took about 2 minutes to convert on my 3 year old laptop. The new file is 7 times larger than the original PDF (5 Mb after conversion).I will try some of the options and let you know if I can get the file size down.Enjoy

author: G7PSK
author_rank: Super Contributor
timestamp: February 20, 2012, 06:34:20 pm
content: Calibre is better you can find it at.http://calibre-ebook.com/download_windows

author: sacherjj
author_rank: Frequent Contributor
timestamp: February 20, 2012, 06:41:41 pm
content: Quote from: G7PSK on February 20, 2012, 06:34:20 pmI use that for my ebook management, but only elib or mobi, etc. I never thought about converting PDF to mobi for the Kindle. I'll have to try that. This is one place where a 10" tablet seems to shine. Just large enough to view datasheet PDFs as full page view.

author: MikeK
author_rank: Super Contributor
timestamp: February 22, 2012, 02:06:25 am
content: I have the big Kindle DX and just read PDF's regular-like on it.

author: bkochis
author_rank: Contributor
timestamp: March 09, 2012, 05:25:17 pm
content: Quote from: G7PSK on February 20, 2012, 06:34:20 pmI tried the Calibre software on my Kindle. Kindle's require a file with an AVX extension. The Calbre software will only put out a MOBI file which looks horrible on a Kindle.Oh well, gave it a try.

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 09, 2012, 05:45:52 pm
content: .azw files are .mobi files. As long as there is no DRM, you can just change the extension. So if .mobi looks horrible, it's because the conversion was horrible.
Meter movement ligament suppliers. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: March 08, 2012, 10:06:20 pm
content: I have an old Evershed & Vignoles megger meter (test certificate inside dated 1927) that needs a replacement ligament (looks a bit like a hair spring) does any one know of a supplier of such things please as I would like to restore the unit.

author: amspire
author_rank: Super Contributor
timestamp: March 08, 2012, 10:33:35 pm
content: If the spring is bent, it can often be straightened well enough to work. If it is broken, your best bet is probably to try and solder the two broken pieces together with a very small overlap. To do it, I think you would have to take the spring out first.If you did find a replacement hair spring, you would have to replace both hairsprings in the meter, and you will almost certainly end up with a different sensitivity for the meter. The easiest source of hairsprings is from another meter movement. Replacing the springs without damaging them is a nearly impossible job.Richard.

author: G7PSK
author_rank: Super Contributor
timestamp: March 09, 2012, 09:50:32 am
content: Quote from: amspire on March 08, 2012, 10:33:35 pmThanks for your suggestions Richard, There are four of these hair springs the proper name is ligaments, one of which has corroded over time. They are wider and longer than the ones on modern meters,This instrument is 85 years old, I might try an horological suppliers as they might have suitable materials.
Back to the future, audio fun, and tranducers, big ones! - Page 1
Forum section: electronics / general

author: Lightages
author_rank: Unknown
timestamp: March 07, 2012, 09:12:28 pm
content: http://hackaday.com/2012/03/07/six-foot-speaker-shakes-buildings-to-their-foundation/I want to build one!

author: G7PSK
author_rank: Super Contributor
timestamp: March 08, 2012, 03:51:25 pm
content: Could be harmful to health or even lethal, I read about some researcher in France harming people in another building when experimenting with sub-sonic standing waves.

author: tekfan
author_rank: Frequent Contributor
timestamp: March 08, 2012, 04:03:17 pm
content: I heard that they played a 7Hz tone to chickens for a week and within that week every single one died!

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 08, 2012, 04:15:36 pm
content: This reminds me of the electronics vibration testing table at Cummins Engine in Columbus, IN. I don't know if they still have it, as we were going on a tour with a friend who was an engineer there years ago. You bolt down electronics and they would feed in various vibration waveforms and frequencies to shake the hell out of electronics packages. They had hooked up a mylar sheet to it to make music.

author: T4P
author_rank: Super Contributor
timestamp: March 08, 2012, 04:28:39 pm
content: At high output of course low frequencies can resonate with your heart .Low output ? Don't bother .

author: divelectservices
author_rank: Contributor
timestamp: March 08, 2012, 05:16:41 pm
content: makes me proud to live in Madison!
Strange organic PCB design on dismantled 8GB SD Card - Page 1
Forum section: electronics / general

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 02, 2012, 10:16:49 am
content: My girlfriend managed to damage an SD card so that it wouldn't work in her camera, so I decided to pull the plastic cover off to see what was inside. The plastic case is much larger than the board, and at first looked boring - it just looked like a flat encapsulated PCB with some ripples on the potting compound.However, under oblique light and magnification, it shows that the board has a really interesting, organic design. I've taken a lot of things apart and never seen anything quite like this.Link to full sizeLEECH666 pointed out this autorouter which has similar results:http://www.eremex.com/products/topor/Anyway, I thought it was interesting. Has anyone else seen this? Got any ideas why?

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: March 02, 2012, 10:54:37 am
content: I love Bezier traces, they look nice. I guess one reason to use something like that is to give you more compact routes. Vintage (cold war era) electronics use similar routing styles, particularly Russian stuff.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: March 02, 2012, 11:43:30 am
content: I think it allows for the maximum density for a given set of PCB design rules and layers - one claim of the topological router linked above is it allows fewer layers.

author: BravoV
author_rank: Super Contributor
timestamp: March 02, 2012, 12:11:17 pm
content: Quote from: cybergibbons on March 02, 2012, 10:16:49 amInteresting, thanks for the link, just knew such application exist.Did browse that website, found a particular interesting feature here ->http://eda.eremex.com/products/topor/competitiveadvantages/electromagnetic.htmlits about the sharp pointy right angle trace vs rounded one that they claimed rounded corner is better.Just fyi, Dr.Howard Johnson (the author of the "High Speed Digital Design: A Handbook of Black Magic") said its a myth, and it makes no big difference at all for signal integrity for single ended trace, not differential though. Dave actually did ask him specifically about this in The Amp Hour #77, highly recommended if you haven't listened.

author: ronwoch
author_rank: Contributor
timestamp: March 03, 2012, 02:52:20 am
content: ^^Myth or not, it sure looks cool!

author: Spiro
author_rank: Contributor
timestamp: March 06, 2012, 01:58:02 pm
content: Yeap.

author: Jope
author_rank: Regular Contributor
timestamp: March 08, 2012, 11:30:53 am
content: Great photo!What brand is the SD card?

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 08, 2012, 12:35:14 pm
content: Externally branded PNY, internally seems to be Sandisk.
Mechanical animals - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: March 07, 2012, 02:39:39 pm
content: I was sent this link today. One day when we have exterminated the real ones we will be able to replace them with mechanical ones.

author: sonicj
author_rank: Frequent Contributor
timestamp: March 07, 2012, 04:02:21 pm
content: damn nature... you scary!

author: Blofeld
author_rank: Regular Contributor
timestamp: March 07, 2012, 06:04:46 pm
content: A short excerpt from the wikipedia page on DARPA:"Today, DARPA’s mission is still to prevent technological surprise to the US, but also to create technological surprise for its enemies."I guess the enemy would indeed be surprised if this thing would come running after him. So - mission accomplished. But for practical purposes, I would be more impressed by flexibility than by speed. Maybe some spider-like thingy that can crawl everywhere you want it.

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 07, 2012, 07:56:44 pm
content: This is making me think of the movieScreamers.

author: SoftwareSamurai
author_rank: Regular Contributor
timestamp: March 07, 2012, 09:20:14 pm
content: AMEE prototype?

author: entereev
author_rank: Contributor
timestamp: March 07, 2012, 10:32:46 pm
content: Quote from: G7PSK on March 07, 2012, 02:39:39 pmIn my future things are a bit more positive

author: Mint.
author_rank: Frequent Contributor
timestamp: March 08, 2012, 07:05:50 am
content: Quote from: entereev on March 07, 2012, 10:32:46 pmWhere is this image from?

author: Hypernova
author_rank: Unknown
timestamp: March 08, 2012, 08:17:57 am
content: Transformers 2nd movie.Damn that's fast, and you can see it hasn't even fully stretched its legs yet.
short on non-smd resistors? How would you like 4300 of the little buggers? - Page 1
Forum section: electronics / general

author: ChrisW
author_rank: Contributor
timestamp: March 07, 2012, 01:13:13 am
content: I'd buy a lot but I have no place to store them all. Seems pretty good value;http://www.ebay.com.au/itm/86x50Pcs-Each-Full-Range-Resistor-kit-E12-1-4W-1-/150652167799

author: T4P
author_rank: Super Contributor
timestamp: March 07, 2012, 12:36:52 pm
content: Very low in values but ... There's a lot of each value :http://www.ebay.com/itm/320763822628?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649#ht_1408wt_1396

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 07, 2012, 06:03:25 pm
content: How I know I'm on au version of ebay. "G'day!" at the top.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 07, 2012, 06:38:13 pm
content: Quote from: ChrisW on March 07, 2012, 01:13:13 am4K++ pieces... C$19.90 great! shipping to asia... C$43.28 even greater! am i lucky or what?

author: sacherjj
author_rank: Frequent Contributor
timestamp: March 07, 2012, 07:54:51 pm
content: Quote from: Mechatrommer on March 07, 2012, 06:38:13 pmI'm seeing the same to US. Many ebay auctions are hook'em on the price, screw'em on the shipping.

author: SeanB
author_rank: Super Contributor
timestamp: March 07, 2012, 08:22:19 pm
content: I think I have enough myself, got a lot a long time ago. Assorted values and sizes, mostly 0.25W.
Weird Soldering Stations on Aliexpress  - Page 1
Forum section: electronics / general

author: T4P
author_rank: Super Contributor
timestamp: March 06, 2012, 06:20:52 pm
content: Share your weirdest ones and ones that kind of confuse you !( Heh , there's one Kada that is as large as a 858 )http://www.aliexpress.com/store/302103/210652245-381787973/Best-Selling-220V-Hakko-936-Soldering-Iron-Soldering-Station-Hakko-Solder-Gun.htmlSo cheap ? Is it because it's discontinued therefore it's now so cheap ?http://www.aliexpress.com/store/302103/210652245-439071131/110-220V-GORDAK-936-GD-936-936A-ESD-Safe-SMD-Electric-Soldering-Irons.htmlSorry , i'll buy the hakko instead . Why buy a copy when a copy only costs slightly less.http://www.aliexpress.com/store/302103/210652245-387099986/New-Arrival-220V-HAKKO-FX-951-Soldering-Station-Hakko-Iron-Hakko-Soldering.htmlhttp://www.aliexpress.com/store/302103/210652245-439186354/New-Arrival-220V-ESD-Safe-Gordak-943-SMD-Rework-Station-Wellering-Irons-Soldering-tools.htmlTo china :

author: FenderBender
author_rank: Super Contributor
timestamp: March 07, 2012, 02:58:28 am
content: No the "Hakko" is probably still a fake.

author: T4P
author_rank: Super Contributor
timestamp: March 07, 2012, 12:34:35 pm
content: As i expected , it looks real with that actual connector but obviously it is a fake .Just a well done copy . Innards ? Who knows !
forum broken? - Page 1
Forum section: electronics / general

author: tinhead
author_rank: Super Contributor
timestamp: March 06, 2012, 06:05:02 pm
content: is it only me or is forum somehow broken?While posting in another forum links from eevblog i recognized thatattachements are gone, example:https://www.eevblog.com/forum/general-chat/hantek-tekway-dso-hack-get-200mhz-bw-for-free/msg40447/#msg40447i remember i posted eagle files, but they goneor herehttps://www.eevblog.com/forum/general-chat/hantek-tekway-dso-hack-get-200mhz-bw-for-free/msg42363/#msg42363screenshots of measurment gone.

author: saturation
author_rank: Super Contributor
timestamp: March 06, 2012, 08:28:11 pm
content: I remember discussion about some images not ported over over when eevblog switch forum servers many months ago.

author: EEVblog
author_rank: Unknown
timestamp: March 06, 2012, 09:38:04 pm
content: Yes, sorry, I think a few files were lost in the move, but I believe it was very limited.Dave.

author: Mechatrommer
author_rank: Super Contributor
timestamp: March 07, 2012, 06:47:32 am
content: i have numbers of images and attachments lost in action. so i guess its not just you and me only.
Product Failures - Page 1
Forum section: electronics / general

author: Randall W. Lott
author_rank: Regular Contributor
timestamp: March 06, 2012, 04:17:54 am
content: I'd like to share the phenomenal soldering abilities presented in my multimeter.Anyone have similar product mishaps that made them giggle? Please share.

author: IanB
author_rank: Super Contributor
timestamp: March 06, 2012, 04:20:39 am
content: That seems a bit odd to be a random mishap. Sure they weren' t fine tuning the shunt resistance?

author: robrenz
author_rank: Super Contributor
timestamp: March 06, 2012, 04:23:03 am
content: Look at the missing solder connetion to the board.

author: Randall W. Lott
author_rank: Regular Contributor
timestamp: March 06, 2012, 04:50:05 am
content: Their manual shows the PCB. The solder joint is correct on that picture. It's pretty funny!

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 06, 2012, 06:22:42 am
content: So the picture shows something that is correct, but a mishap?

author: Randall W. Lott
author_rank: Regular Contributor
timestamp: March 06, 2012, 06:50:12 am
content: Quote from: cybergibbons on March 06, 2012, 06:22:42 amThe picture on their site shows a multimeter of the same model that has the correct solder joint, unlike mine.

author: cybergibbons
author_rank: Frequent Contributor
timestamp: March 06, 2012, 06:56:09 am
content: So what's the product, and where is this other picture?

author: Jad.z
author_rank: Regular Contributor
timestamp: March 06, 2012, 04:11:13 pm
content: Space-time anomaly

author: Randall W. Lott
author_rank: Regular Contributor
timestamp: March 07, 2012, 01:43:52 am
content: Quote from: cybergibbons on March 06, 2012, 06:56:09 amThis is the picture on their "Calibration" manual:
Dick Smith Rescues Arboreal Decapod - Sort Of - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: March 05, 2012, 10:45:12 pm
content: Greetings EEVBees:--Indeed, the land down under abounds with strange fauna, which are given even stranger names. See the below link for story about Dick Smith saving the "Tree Lobster", a picture of which is posted at the bottom.http://www.theregister.co.uk/2012/03/04/tree_lobster_saved/--And two other links to stories about this tasty tree topper.http://www.abc.net.au/austory/content/2005/s1343583.htmhttp://www.npr.org/blogs/krulwich/2012/02/24/147367644/six-legged-giant-finds-secret-hideaway-hides-for-80-years--As soon as they breed up a few more, we can try throwing a few on the barbie."Get ready, little lady. Hell is coming to breakfast."Chief Dan George 1899 1981Best RegardsClear Ether