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

author: ales22
author_rank: Contributor
timestamp: March 03, 2014, 08:03:23 pm
content: Hello, I wanted to add RSS feed into my email client, but it doesn't work and when I tried to open linkhttps://www.eevblog.com/forum/.xml/?type=rss(at the bottom of the forum page) in my web browser, the 403 Forbidden error popped up. Is it possible to have RSS feed for this forum? Thanks. Aleš

author: Rigby
author_rank: Super Contributor
timestamp: March 03, 2014, 08:37:16 pm
content: Thatisthe correct link, according to the page source code. Dave must have disabled it or something.Maybe he'll hop in and let us know.

author: ataradov
author_rank: Super Contributor
timestamp: March 03, 2014, 11:56:32 pm
content: Here is the link I use: h_t_t_p://www.eevblog.com/forum/index.php?action=.xml;type=rssIt is not a URL on purpose - forum screws up links with '=' characters.

author: ales22
author_rank: Contributor
timestamp: March 04, 2014, 08:25:43 am
content: It works. Thanks Alex.
Nice item for teardown - Page 1
Forum section: electronics / general

author: rollatorwieltje
author_rank: Unknown
timestamp: March 02, 2014, 01:56:05 pm
content: http://www.ebay.com/itm/NASA-ARTIFACT-VPI-Vehicle-Power-Interface-Rack-Console-Hubble-Space-Telescope-/261090432601?pt=LH_DefaultDomain_0&hash=item3cca33d659Test rig for the Hubble telescope. Look at those wires

author: G7PSK
author_rank: Super Contributor
timestamp: March 02, 2014, 04:14:14 pm
content: They would refuse Dave an export licence on that, after all he is on the most wanted list by some mysterious US government agency, Neo symian assoles or some such name.

author: kizzap
author_rank: Unknown
timestamp: March 03, 2014, 12:06:35 am
content: Quote from: G7PSK on March 02, 2014, 04:14:14 pmIf Dave had the chance to tear it down, I am sure export licencing would not pose an issue. Worst comes to worst, he just has to buy a ticket to the US, which I am sure would be cheaper then postage...

author: pickle9000
author_rank: Super Contributor
timestamp: March 03, 2014, 12:23:16 am
content: Looks like it came off the "6 Million Dollar Man". Where do you come up with a price like that?

author: apelly
author_rank: Unknown
timestamp: March 03, 2014, 12:29:52 am
content: "May not ship to New Zealand"

author: 6E5
author_rank: Regular Contributor
timestamp: March 03, 2014, 12:55:01 am
content: Indy's got this one.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 03, 2014, 01:56:14 am
content: Ah but you're forgetting... have Fran do it!

author: zapta
author_rank: Super Contributor
timestamp: March 03, 2014, 06:11:05 am
content: Dave should do the analog TV trick and show at their door with a rolling camera.

author: pickle9000
author_rank: Super Contributor
timestamp: March 03, 2014, 06:32:30 am
content: Off topic sorry,If I was NASA and had a couple defective pcb's or whatever that where actually on the Hubble in space (from a repair mission for example). I'd cut em up, put them in a chunk of plastic and sell the bits for 10 bucks each. OK maybe it wouldn't even pay for a couple of bolts for the space station but it would be great P.R..

author: Kjelt
author_rank: Super Contributor
timestamp: March 03, 2014, 09:39:09 am
content: what a rediculous price they are asking.

author: rollatorwieltje
author_rank: Unknown
timestamp: March 03, 2014, 09:22:51 pm
content: Quote from: Kjelt on March 03, 2014, 09:39:09 amContains 6 HP and 2 Lambda power supplies. When you sell those in Europe you could make a profit(or actually)
The Embedded Muse - Page 1
Forum section: electronics / general

author: PaulAm
author_rank: Frequent Contributor
timestamp: March 03, 2014, 07:53:45 pm
content: Jack Gannsle is rerunning a series of articles he wrote for Embedded Systems Design on the history of the microprocessor. First two parts this month, last two in future blogs. It's an interesting read.http://www.ganssle.com/tem/tem256.html
Delorean and Chris Lloyd on Raising Hope - Page 1
Forum section: electronics / general

author: Stonent
author_rank: Super Contributor
timestamp: March 02, 2014, 04:57:50 am
content: Not sure if this show airs in Australia, but Dave should check out Season 3 Episode 11 of Raising Hope. Here's a teaser:

author: Noise Floor
author_rank: Regular Contributor
timestamp: March 02, 2014, 07:03:19 pm
content: The analog speedometer ruined it a bit for me. I've never watched the show, any good?

author: Stonent
author_rank: Super Contributor
timestamp: March 03, 2014, 04:50:07 am
content: Yeah it's pretty funny, my wife and I have been watching it on Netflix. The show is by the same guy that made My Name is Earl. There's a few actors in it from that show.
Dave takes a well earned break from organising his workspace .... - Page 1
Forum section: electronics / general

author: Paulusthewoodgnome
author_rank: Newbie
timestamp: March 02, 2014, 06:55:36 pm
content: Dave takes a well earned break from organising hisworkspace and indulges in a healthy snack ... noticeselectronics objects being discarded in a dumpster at 48sec
Radioactive Fiestaware - Page 1
Forum section: electronics / general

author: dexters_lab
author_rank: Unknown
timestamp: February 10, 2014, 10:24:31 pm
content: Some of you maybe interested in this.I picked up a piece of fiestaware from ebay to test properly my MightyOhm Geiger counter i built last year.Fiestaware was made using uranium oxide so is naturally radioactive.I made a short clip showing the results...

author: dfmischler
author_rank: Frequent Contributor
timestamp: February 10, 2014, 10:28:26 pm
content: Fiestaware Radioactive Glazes

author: AlfBaz
author_rank: Super Contributor
timestamp: February 10, 2014, 11:45:58 pm
content: Quote from: dexters_lab on February 10, 2014, 10:24:31 pmI'm curious about the mightyohm Geiger counter. Is there any form of calibration procedures with it or do you just zero it and hope for the best? I ask this because I just did a quick search and it appears they are normally calibrated to a caesium isotope

author: dexters_lab
author_rank: Unknown
timestamp: February 11, 2014, 01:00:22 am
content: Quote from: AlfBaz on February 10, 2014, 11:45:58 pmIts all down to the tube, which just detects based on its properties. So two sbm20 tubes will have the same sensitivity and detect the same types of radiation.different types and sizes of tube might detect more and different types of radiation.The device that counts what the tube detects needs no calibration unless its using analog guages to display the results.

author: Stonent
author_rank: Super Contributor
timestamp: February 11, 2014, 12:51:58 pm
content: I got 2 free CDV-700 units from a guy who rebuilds them that was getting rid of some hardware that needed to be repaired. There was only one tube but one unit works fine. They both have a depleted uranium chip on the side for checking the unit and calibration. It uses a Victoreen beta/gamma tube at 900V.

author: Stonent
author_rank: Super Contributor
timestamp: February 11, 2014, 01:02:32 pm
content: Also remember wit Geiger counters the dose rate is based on the calibration. So if you are calibrated to Uranium then whatever the dose rate it gives you is assuming it is uranium.If you put Cs137 on there the counts will still be fine but the dose rate will be completely wrong.Think of it like counts being number of vehicles seen on the highway. Dose rate would be what the vehicles were. If you counted 100 motorcycles, they don't have the same energy as 100 fully loaded trucks.

author: dexters_lab
author_rank: Unknown
timestamp: February 11, 2014, 01:36:45 pm
content: Yea, i was thinking about that point after i postedThere is no detail of how jeff of mightohm arrived at those uS/hr readings, does he frequent these parts?

author: Stonent
author_rank: Super Contributor
timestamp: March 02, 2014, 06:16:17 am
content: Quote from: dexters_lab on February 11, 2014, 01:36:45 pmIf you know the characteristics of your tube and your source, you could calculate it I support.
Hitachi IC date-codes - Page 1
Forum section: electronics / general

author: grumpydoc
author_rank: Super Contributor
timestamp: March 01, 2014, 05:11:45 pm
content: Does anyone have a reference to how to decode date-codes from Hitachi ICs (74HC series, mostly)?I have things like 2F26, 2M26, 2G26, 2K46 - judging from the (very few) non-Hitachi chips in this 'scope we're looking at 1999-2002 but I'd like a bit more confirmation.
Questionable ad - Page 1
Forum section: electronics / general

author: Len
author_rank: Frequent Contributor
timestamp: March 01, 2014, 10:15:28 pm
content: I saw this ad on EEVBlog today. I wonder what would happen if I click on it - but I'm not about to try! Do not click on this ad if you see it! It came up again and I looked at the URL - it goes (via doubleclick.net) to installldownload . com which is a site that distributes adware & malware (according to anti-malware sites VirusTotal and herdProtect).

author: fluxcapacitor
author_rank: Frequent Contributor
timestamp: March 01, 2014, 10:56:37 pm
content: You do have to click on the download button on the webpage though to install anything.If anyone is stupid enough to install it, it will install conduit and change your home page and default search engine.https://www.virustotal.com/uk/file/5f44fe29f276e0f5f24f041d037949be7b2d58eb650dee04acc75c0f28892b38/analysis/
Express Post - Page 1
Forum section: electronics / general

author: ketil b
author_rank: Regular Contributor
timestamp: February 27, 2014, 11:46:39 pm
content: Needed to get a new soldering iron to fix my old iron, need to have it by next week to finish a job.But its ok this guy offers an Express Post service

author: AlfBaz
author_rank: Super Contributor
timestamp: February 27, 2014, 11:59:25 pm
content: Teleportation isn't cheap you know
Z-Wave protocol - what future? - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: February 27, 2014, 08:55:22 pm
content: What do you think about Z-Wave protocol (http://www.z-wave.com/)? Is it something worth learning it? Or already old and not having bright future?

author: tom66
author_rank: Super Contributor
timestamp: February 27, 2014, 08:59:10 pm
content: Browsed through half the pages in that site and no explanation of what it actually is, but it's probably some derivative of wireless home automation. Big deal, there's hundreds of other products doing the same thing.

author: ataradov
author_rank: Super Contributor
timestamp: February 27, 2014, 09:32:17 pm
content: Z-Wave is one if the most popular protocols in this area (Home Automation). But it is completely proprietary and closed, so studying it "just in case" is not worth it. If you have a specific product in mind, then it definitely makes sense. Just remember that SDK alone will cost $1200 or so. Plus you will need compilers (I think they force you to use Keil) and other tools.

author: dexters_lab
author_rank: Unknown
timestamp: February 27, 2014, 10:19:36 pm
content: It is popular in home automation, it has been slowly growing over many years but i wonder if low power wifi solutions might now spell a problem for zwave, though its mesh networking ability does offer an advantageThere are a loads of competing radio based HA systems that work as well or at a cheaper priceI would only study if there was a specific reason to

author: ataradov
author_rank: Super Contributor
timestamp: February 27, 2014, 11:21:13 pm
content: I would not say that are "loads" that actually work. Z-Wave's strength is that it is controlled by one company, which means that it is very focused and you can be sure that everything just works.More open standards often suffer from "designed by committee" syndrome.Low power WiFi and BT LE are serious contenders, but the problem with them is that there are no unified protocols, everyone makes their own.
Bench Pillar Drill speed question - Page 1
Forum section: electronics / general

author: akis
author_rank: Frequent Contributor
timestamp: February 27, 2014, 05:23:32 pm
content: I have got a bench pillar drill from my in-law - it is very heavy and looks extremely sturdy. I want to use it to cut large holes on panels, and for that purpose I have bought a step drill bit 4-22mm. I plan to secure the panel as much as possible and then make the hole as carefully as I can, and since the whole assembly is quite sturdy the hole should come out clean.The machine is like all of them there is a belt at the top and I think it is rated 250W. I turned the machine on today and I cannot find a speed control knob. I presume that big bits and bores will require much slower speeds than smaller holes, so how do I adjust the speed ? Are all bench pillar drills made this way? I have looked one up in Amazon and it also appears to be lacking a speed selector switch.

author: IanB
author_rank: Super Contributor
timestamp: February 27, 2014, 05:31:02 pm
content: The speed is usually adjusted by moving the drive belt from one pulley to another. There may be 2, 3 or 4 different speeds available. Something like that.

author: ajb
author_rank: Super Contributor
timestamp: February 27, 2014, 05:57:06 pm
content: If you do have a multispeed pulley setup there should be a chart somewhere (often inside the lid that covers the belt compartment) that indicates what belt arrangement gives what speed. Some larger drill presses have two belts and three pulleys so you have a fairly fine degree of control over the speed, whereas smaller units will only give you a couple of speed options that should get you 'close enough' for basic work.Typically the motor is mounted on some sort of slide mechanism so that you can relieve tension from the belt while moving it to a new position and then re-tension it after you get it where you want. This may or may not be a pain in the ass depending on the age, upkeep, and overall quality of the tool.

author: G7PSK
author_rank: Super Contributor
timestamp: February 27, 2014, 09:58:00 pm
content: All the drill presses that I have used have multi step pulleys very often in two banks so that there is a stepped idler pulley giving eight or twelve ratio's some have two speed motors as well. Some drills the speed change is done with a gear box with levers or dials to select the speed.Post some picture of the drill.

author: mos6502
author_rank: Frequent Contributor
timestamp: February 27, 2014, 10:17:21 pm
content: A drill press is overkill for a step drill bit. Even the smallest cordless drill will work fine freehand. Since the sheet metal is thin and the drill bit doesn't grab like a standard bit, the forces involved are low. If you don't have a cordless drill, use the slowest speed and always use some lubrication (vaseline or automotive grease work well).
GCHQ webcam spying - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: February 27, 2014, 03:54:57 pm
content: You might want to disconnect or cover up your webcam.With some help from our friends at the NSA.Not sure if they can do this while you are not "using" the camera or not. Probably so.http://www.bbc.com/news/technology-26367781

author: cybermaus
author_rank: Frequent Contributor
timestamp: February 27, 2014, 04:00:00 pm
content: I have been putting black electric tape on my lapbook-cam since I had it (6 years or so, 2nd laptop with integrated cam)Black electrical tape, with a small 1cm square paper, to avoid getting glue on the lens.Not because of NSA, but "keyloggers" have expanded into screenshots, cam shots, mic audio for years now.Edit: and even today, after wikileaks and snowden revealed what NSA is up to, I am still more worried about bad people getting my credit card then NSA seeing me in my underwear.

author: zapta
author_rank: Super Contributor
timestamp: February 27, 2014, 04:34:46 pm
content: Light Dims are your friends. They work also on cameras, not just LEDs.http://www.lightdims.com/

author: mariush
author_rank: Super Contributor
timestamp: February 27, 2014, 05:00:42 pm
content: I just use pidgin to connect to YM network. Pidgin has no video functionality as far as I'm aware.I have skype though, but it usually defaults itself on the tv tuner, as I don't have webcam in the first place. So if they want to record local tv stations they can feel free to do so.

author: echen1024
author_rank: Super Contributor
timestamp: February 27, 2014, 05:12:46 pm
content: I just try and avoid laptops with webcams, or cover them up with electrical tape.

author: zapta
author_rank: Super Contributor
timestamp: February 27, 2014, 05:51:16 pm
content: Quote from: echen1024 on February 27, 2014, 05:12:46 pmI am also covering the front cams of all of our cell phones.
So how was Wyong this year? - Page 1
Forum section: electronics / general

author: TerraHertz
author_rank: Super Contributor
timestamp: February 23, 2014, 02:17:30 pm
content: Not having any spare cash, due to needing to save up for something that has to be done, put me off the long drive. Too frustrating to walk around and just look.Anyone have any great scores, and want to post pics? So I can feel not totally left out.

author: TerraHertz
author_rank: Super Contributor
timestamp: February 26, 2014, 05:17:58 am
content: Well that's sad.An acquaintance who went to Wyong wrote to me:QuoteThe weather wasn't rainy unlike 2013. So why the slim showing?My guess - pretty much everyone is short of money. General economic hardship, despite bullsh*t official figures pretending everything is rosy.Anyone else who did or didn't go, care to comment?I really hope that tradition doesn't die.

author: EEVblog
author_rank: Unknown
timestamp: February 26, 2014, 05:47:49 am
content: Quote from: TerraHertz on February 26, 2014, 05:17:58 amI went and posted a video. The flea market was packed from 7am and tapered off about 11am. The inside stalls were the same as last year. No shortage of people really.At some points I had people 3 layers deep surrounding my car boot.

author: TerraHertz
author_rank: Super Contributor
timestamp: February 26, 2014, 09:47:05 am
content: Thanks for the video. Looks like a typical showing to me, so I don't know why my friend thought it was sparse.Heh. Even just from the quick scan of the car boot sales it's obvious I'd have felt miserable about being broke if I'd gone.

author: GreyWoolfe
author_rank: Unknown
timestamp: February 26, 2014, 05:14:31 pm
content: Seems I am not the only one to suffer from the all too common Italian disease, Fundzalo!

author: Stonent
author_rank: Super Contributor
timestamp: February 27, 2014, 02:30:46 am
content: Quote from: EEVblog on February 26, 2014, 05:47:49 amAny more Hung Chang scopes? Gotta love them. Though mine (Tenma branded) has been great so far.

author: romantronixlab
author_rank: Regular Contributor
timestamp: February 27, 2014, 03:22:40 am
content: Wanted to be there to get one of those scopes for those prices, but I am out too far (almost 10k miles) from where the event was.

author: echen1024
author_rank: Super Contributor
timestamp: February 27, 2014, 03:43:39 am
content: Quote from: romantronixlab on February 27, 2014, 03:22:40 amNot much of these in Texas. *sigh*
How to test CC Led Driver - Page 1
Forum section: electronics / general

author: kolbep
author_rank: Frequent Contributor
timestamp: February 25, 2014, 11:10:11 am
content: Hi All.Just a quick one,I have been asked by a customer to test 3 of their 50W LED floodlights.I have checked, and their powersupplies are working, seems to be that the LED Chip may be dead.Before I tell them that they need new LED Chips, is there a way I can possibly test that the powersupplies are not exceeding the ratings,and with a no-name chinese fitting, is there a way to tell what the limits are so that it will not mess up a quite expensive LED.ThanksP

author: kolbep
author_rank: Frequent Contributor
timestamp: February 26, 2014, 05:46:59 pm
content: Any ideas

author: Towger
author_rank: Super Contributor
timestamp: February 26, 2014, 07:51:18 pm
content: The 50w LEDs are only about 4 euro each. Did you test the LEDs? Chance are they are overdriven or over heated. The require around 32v at 1.5a.

author: tom66
author_rank: Super Contributor
timestamp: February 26, 2014, 08:51:57 pm
content: Where can you buy a 50W LED for 4 euros?? Do they last long or is it a one hour light source...!

author: ishelly404
author_rank: Contributor
timestamp: February 26, 2014, 09:31:56 pm
content: Ebay is one place to find such LEDs on the cheap.Examplehttp://www.ebay.com/itm/50W-Warm-White-High-Power-LED-Panel-4000LM-50-Watt-Lamp-Light-/380515696976?pt=LH_DefaultDomain_0&hash=item589880c150I don't know about their reliability however.
Amper 2014 tradeshow in Brno, Czech Republic - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: February 25, 2014, 06:22:07 pm
content: To whomever it may interest:The annual electronics trade show for the Central Europe region, in Brno, Czech Republic will be during 18.-21.3.2014. See:http://www.amper.cz/en.htmlI'll probably be there, enjoy.
Plugging my Dave inspired RCHacker channel 'How to entertain a nerd' style. - Page 1
Forum section: electronics / general

author: Marc
author_rank: Contributor
timestamp: February 21, 2014, 12:47:25 am
content: Hey all, this a shameless plug for my youtube channel.It should entertain like minded nerds who love RC stuff that flies.It is a promo video with snippets of my first 58 videos.Dave you might even enjoy this.Great work, i think I have watched all your videos.cheers, Marc.

author: george graves
author_rank: Super Contributor
timestamp: February 21, 2014, 01:45:57 am
content: Subscribed! I love tri-copters!

author: EEVblog
author_rank: Unknown
timestamp: February 21, 2014, 01:55:32 am
content: Nice work!

author: Marc
author_rank: Contributor
timestamp: February 21, 2014, 02:23:27 am
content: Woo hoo!Thanks Dave.I made this for the youtube fan finder,https://www.youtube.com/fan_finderbut I still need to shorten it to less than 2 minutes. I'm not sure exactly what the fan finder will do but it looks like an opportunity.And the music is youtube safe:https://www.youtube.com/audiolibrary, another new feature.and cheers too George.Marc.

author: Stonent
author_rank: Super Contributor
timestamp: February 21, 2014, 05:00:10 pm
content: Just noticed one of my favorite screwdrivers in one of your videos.Everyone should have one of these.

author: G7PSK
author_rank: Super Contributor
timestamp: February 21, 2014, 08:47:05 pm
content: Quote from: Stonent on February 21, 2014, 05:00:10 pmGot one, it sits in front of me now next to my keyboard so I always know where it is. Pity it does not have a dvm built into the handle.

author: Marc
author_rank: Contributor
timestamp: February 22, 2014, 02:43:01 am
content: Love that, I got mine in Peru. I need a few more, it stays home for a week then goes walk-about for a month.

author: noah_fakelastnamelike_bob
author_rank: Regular Contributor
timestamp: February 23, 2014, 04:55:56 am
content: how much would that hello kitty one cost seems like it might be a good gift to mess with me father with

author: Marc
author_rank: Contributor
timestamp: February 23, 2014, 03:10:37 pm
content: Ha, that was a one off.She has since been skinned and her guts gone into another project.

author: noah_fakelastnamelike_bob
author_rank: Regular Contributor
timestamp: February 23, 2014, 06:44:32 pm
content: oh well how much would the cheapest one you could make?

author: zapta
author_rank: Super Contributor
timestamp: February 26, 2014, 12:58:59 am
content: Quote from: Stonent on February 21, 2014, 05:00:10 pmModel number?

author: george graves
author_rank: Super Contributor
timestamp: February 26, 2014, 08:25:33 am
content: ^Ditto. Also, why do you like it so much?

author: Unknown
author_rank: Unknown
timestamp: February 26, 2014, 08:41:54 am
content: Great intro video!
Trivia question: where is it? - Page 1
Forum section: electronics / general

author: IanB
author_rank: Super Contributor
timestamp: February 22, 2014, 10:24:45 pm
content: A curious architectural feature and an amusing trivia question:There is somewhere in London, adorning a building related to public transport, an architectural feature that looks like something out of the world of electrical engineering.Can you identify where and what it is?

author: IanB
author_rank: Super Contributor
timestamp: February 23, 2014, 01:09:43 pm
content: Picture:

author: AlfBaz
author_rank: Super Contributor
timestamp: February 23, 2014, 01:16:57 pm
content: If it's not a lightning rod then surely its the aerial from "Hogans Heros"

author: apelly
author_rank: Unknown
timestamp: February 23, 2014, 01:32:25 pm
content: Be very wary!Thatis an extremity of a prostrate Dalek.

author: IanB
author_rank: Super Contributor
timestamp: February 23, 2014, 04:30:32 pm
content: More:

author: Towger
author_rank: Super Contributor
timestamp: February 23, 2014, 04:59:48 pm
content: Southgate tube station

author: IanB
author_rank: Super Contributor
timestamp: February 23, 2014, 05:03:44 pm
content: And so it is:

author: electronics man
author_rank: Frequent Contributor
timestamp: February 23, 2014, 08:09:31 pm
content: I have never noticed that before, and I live quite neer it, strange

author: G7PSK
author_rank: Super Contributor
timestamp: February 23, 2014, 10:20:59 pm
content: Looks very similar to Hangar lane station, but Hangar lane dose not have the Ht insulator on top, my grandmother used to live near there.

author: JuKu
author_rank: Frequent Contributor
timestamp: February 24, 2014, 12:39:26 pm
content: Repurposed UFO, MiB style.

author: cybermaus
author_rank: Frequent Contributor
timestamp: February 24, 2014, 12:49:00 pm
content: Ah yes, hiding the personal transport type UFO's in plain sight.How about thisalien luxury cruiser.
Odd forum behaviour on android browser - Page 1
Forum section: electronics / general

author: AlfBaz
author_rank: Super Contributor
timestamp: February 23, 2014, 01:12:08 pm
content: So the other day I was messing around with the settings on the stock android browser and decided to disable cookies and thought no more about it.Today I hit my shortcut to the eevblog forum on my tablet and the address bar seemed to go crazy, repeatedly changing it's contents until finally a message popped up saying to many redirects and no access to the siteEventually I twigged onto what I had done, re-enabled cookies and it worked. It would appear that the site is trying to store a cookie related to wether or not to show the tablet version or the full version of the forum.Not a biggie, I just thought the site might handle disabled cookies a little more elegantly

author: rexxar
author_rank: Frequent Contributor
timestamp: February 23, 2014, 04:40:58 pm
content: I've noticed some weird behavior, too. Whenever I go into a board and try to open a thread, it will load the thread, but almost immediately jump back to the index. I have to do this three or four times to get to the thread I want. Sometimes when I try to go into a different board, it will open the last thread I looked at. It makes the site almost unusable.

author: electronics man
author_rank: Frequent Contributor
timestamp: February 23, 2014, 08:15:41 pm
content: Quote from: rexxar on February 23, 2014, 04:40:58 pmthat happens to me as well
What can I make with these? - Page 1
Forum section: electronics / general

author: kolbep
author_rank: Frequent Contributor
timestamp: February 20, 2014, 09:11:24 pm
content: Hi All,Any suggestions on what I can make with the following :18 x Motherboards (all faulty)12 x 2 line VFD screens from cash registers (might be ok still), It does come with a controller board that the matrix keypad connected to, so there must be driving logic and interfaces, but unknown if the boards works stillSee, I picked these up next to the recycling bins the other day, and I would really hate to recycle them to the bin.Maybe I can make up some clocks for friends (with the displays), and maybe just rip the DC-DC converters and other interesting pieces off the MOBO's

author: Stonent
author_rank: Super Contributor
timestamp: February 21, 2014, 04:52:59 pm
content: With that stuff alone, probably not, but if you can get the datasheets for the displays you may be able to control them from an AVR or a PIC. You could then put a Dallas/Maxim realtime clock to keep the time accurate.

author: peter.mitchell
author_rank: Super Contributor
timestamp: February 23, 2014, 12:04:18 pm
content: Are all the motherboards the same model? If not you've got a bigger variety of parts to choose from!There is a LOT on a motherboard that is useful for random things, holding aside the obvious, capacitors and FETs, here are some things you may find that are useful;Jacks/sockets - ever cut up a headphone cord to attach to a project instead of using a socket and a male to male?Inductors - often people don't keep stocks of these for some reason.Crystals - anything that needs a clock...BJTs - power and signalLDO regulators - if you're doing 5v->3.3v and you're only powering a micro, you don't need that big TO-220 1117V33, the small SOT-89 will do fine and is easily hand solderable.Poly-fuses/ PTC - good for current limiting where you don't want to have to keep swapping a fuse.Op-Amps - buffering, amplifying, difference amplifying etc etc etc7400 series logic - logic.Shunts/jumpers - it would be nice to have more of these, always handy to have.Heatsinks - not the big CPU heatsink, but the smaller MCH&PCH&VRM ones, usually of a regular shape, so you can cut it up and use it on multiple things - get some thermal epoxy - don't need to worry about mechanicals that way.Simple PWM and constant current drivers in disguise - Eg, the fan controllers.This is just the simple stuff; BUT, when taking parts from boards, i like to use this rule of thumb;The more pins it has, the less likely I am to use it;4 pin voltage regulator? Any day!6/8 pin op-amp? Most days.14 pin Shift Register? Occasionally.200 Pin BGA? Probably Never.

author: Kryoclasm
author_rank: Regular Contributor
timestamp: February 23, 2014, 06:00:46 pm
content: Small Book Shelf

author: SeanB
author_rank: Super Contributor
timestamp: February 23, 2014, 06:05:21 pm
content: When finished with the boards do like the scrappies do and salvage the copper. You should know how and to stand back from the conversion.
504 Gateway timeout 10am AEST Feb 24 - Page 1
Forum section: electronics / general

author: wilfred
author_rank: Super Contributor
timestamp: February 23, 2014, 11:24:58 pm
content: /.

author: EEVblog
author_rank: Unknown
timestamp: February 23, 2014, 11:28:48 pm
content: Yep, I got it too, of course right when I desperately wanted to want into cPanel.

author: baljemmett
author_rank: Unknown
timestamp: February 24, 2014, 01:00:19 am
content: It's been happening every week for a while now -- around 11pm GMT on a Sunday -- I've been assuming it's the new scheduled backup Dave mentioned.
Best Component Shopping in Asia? - Page 1
Forum section: electronics / general

author: Druzyek
author_rank: Contributor
timestamp: February 18, 2014, 04:27:29 pm
content: I will be flying through Asia in June and I would like to make a stopover for a day in a place with a big electronics market. Akihabara in Tokyo looks awesome but I am considering other places. The ideal place would have genuine parts, lots of shops all in one place since I only have a day, and be open to Americans without a visa (Japan, Korea, Singapore, etc.) I'm looking for through-hole components, displays, LEDs, and other parts for hobbyist projects.Where would you go if you only had one day?

author: amyk
author_rank: Super Contributor
timestamp: February 19, 2014, 03:09:53 pm
content: The SEG in Shenzhen.

author: Druzyek
author_rank: Contributor
timestamp: February 19, 2014, 04:42:02 pm
content: I will probably avoid China if it is mostly fakes.There are only two small shops where I live but when I visit every 2-3 months they always seem to have gotten something interesting in I would like to play with. I like doing stuff with microcontrollers and I'm planning on doing some projects that will need LCDs. I also want to build a single board computer someday. I imagine just about anything I would need could be found on the internet but I wanted to see and buy all the neat stuff in person since I have some vacation time and will be passing through anyway.

author: haoleboy
author_rank: Unknown
timestamp: February 20, 2014, 10:29:07 pm
content: Does anyone know of anything in Seoul Korea? I will be spending a week there fairly soon.

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 21, 2014, 05:58:21 pm
content: Guang Hua in Taipei is quite nice. Never bought semiconductors there, but I picked up some 10ga solid core copper wire for a bus bar for a project. Also got some FDB computer fans and some gray market Sennheiser headphones (sounded great, but broke after 10 months). Also picked up some large Rubycon electrolytics on a different trip (to this date I'm not sure if they're genuine, or convincing fakes, but they work fine).They've got a little bit of everything. Keep in mind, most of the "competing" shops there are actually owned by the same person/group/company, with coordinated prices.
OffTopic: Australia's about to destroy World Heritage forests. Plus a petition. - Page 1
Forum section: electronics / general

author: CJWarlock
author_rank: Contributor
timestamp: February 20, 2014, 09:27:45 pm
content: Dunno if it's a good place to post it but I think some of us might actually like Australian natural environment (even living in another country) or just simply don't agree to its destruction, so I post this info here with prefix "offtopic".A few days ago I was reading that Australia's government is planning to reduce Tasmania's high conservation value forests (actually an UNESCO World Heritage List treasure) by 170,000 hectares. There's also an online petition against that. There's more info under that link, so I'll keep it short here."Keep Tasmania's Old Growth & High Conservation Value Forests on the UNESCO World Heritage List"http://www.thepetitionsite.com/589/433/015/keep-tasmanias-old-growth-forests-on-the-unesco-world-heritage-list/

author: EEVblog
author_rank: Unknown
timestamp: February 20, 2014, 09:37:45 pm
content: Everyone who voted for Tony Abbot was warned about the worst of two evils. There is but one example.

author: lemmegraphdat
author_rank: Frequent Contributor
timestamp: February 21, 2014, 03:18:26 am
content: More trees will grow back and just as many and just as big, but not in our lifetimes. That's really the rub, isn't it?

author: Unknown
author_rank: Unknown
timestamp: February 21, 2014, 04:39:35 am
content: Quote from: lemmegraphdat on February 21, 2014, 03:18:26 amNo, not really. The rub is (a) what happens in the meantime to all the plants and animals that relied on that original ecosystem, and (b) that what grows back isn't anything like what was there originally unless you spend a lot of time, effort, and money in an attempt to replace/recreate the original ecosystem. And it's never possible to truly do that anyway, so the original ecosystem is lost forever.A lot of people have the attitude that one patch of green stuff with animals is as good as another patch of green stuff with animals. That simply isn't the case, and the end result of that sort of thinking is a damaged landscape full of collapsed ecosystems containing - if we're lucky - the big pretty and/or iconic things we focussed on, to the detriment of everything else.Imagine if we wiped out all the Tektronix's and HP/Agilent/Keysights, and just left the Rigols & Siglents standing. I mean they're pretty much the same thing to most people, and we've kept the popular ones anyway, so nothing of value was lost.Was it?(BTW I'm an ecologist - but definitely not a 'greenie'...)
quadcopter take off crash  - Page 1
Forum section: electronics / general

author: diyaudio
author_rank: Frequent Contributor
timestamp: February 19, 2014, 02:15:57 pm
content: HiWhat a crappy day after months of waiting for parts I got to fly first time and yes it crashed on neighbours roof and hit the floor, I noticed when it took off it kept moving left . I'm using a apm 2.5 set-up and I followed all the help.Ended up with a broken frame and broken telemetry 2.4GHZ antenna.What a crap day!

author: Rigby
author_rank: Super Contributor
timestamp: February 19, 2014, 02:56:41 pm
content: It is sometimes helpful to practice with cheaper copters, first. Break the cheap ones while you learn...

author: diyaudio
author_rank: Frequent Contributor
timestamp: February 19, 2014, 03:04:37 pm
content: Quote from: Dawgie on February 19, 2014, 02:23:40 pm@DawgieYeah very first flight in fact I had more hardware issues than flight time off the top of my head.Round 1, no throttle spent week debugging the issue (software and wiring) , turned out the SMD chip resistor 0603 chip was not making contact.(bad board off ebay, seller offered replacement but to wait another few weeks no way, took it apart!)Round 2 , problem with the power supply, found out I bought a power moudle that didnt have the 5v switching BEC. Bought that from RS sweet it worked,Round 3, connecting up all the components the APM 2.5 internal voltage 3.3 regulator dies silently , word on the net is high current voltage spike, I think its the ebay junk replaced that with a genuine ti part.Finally, the goal set-up, calibrate fly and crash it was immense fun and sadness at the same time.

author: firehopper
author_rank: Frequent Contributor
timestamp: February 19, 2014, 09:11:19 pm
content: had you flown any type of helicopter or airplane before?
What are the chances.. - Page 1
Forum section: electronics / general

author: Atreidae
author_rank: Contributor
timestamp: February 19, 2014, 11:17:43 am
content: Hey guys, I dont post here often, but just figured this was funny.I've been working on a large printer with a switchmode supply thats gone wrong and im doing inital diagnosis.I said to myself "Ive seen enough EEVBlog videos to know I should check my digitech and replace it with something else."Punch some search criteria into youtube (australia, used under $100) and who pops up?http://www.ebay.com.au/itm/Tektronix-DMM916-4-5-digit-0-06-Multimeter-/271404227340?pt=AU_B_I_Electrical_Test_Equipment&hash=item3f30f3db0c&_uhb=1

author: deth502
author_rank: Frequent Contributor
timestamp: February 19, 2014, 11:22:27 am
content: who?

author: kayvee
author_rank: Regular Contributor
timestamp: February 19, 2014, 11:25:40 am
content: Well he didn't buy that boatload of stuff just to hoard itOr maybe you are just rubbing it in that the rest of us don't get a shot at it

author: Atreidae
author_rank: Contributor
timestamp: February 19, 2014, 11:32:07 am
content: Quote from: deth502 on February 19, 2014, 11:22:27 amDave's other Youtube account is called Altzone and that lab looks VERY familiar.Quote from: kayvee on February 19, 2014, 11:25:40 amI went to an auction of a company closing down a few years back.. was sad really.Makes me wonder though where you need to be on the lookout for news of these sell offs.

author: deth502
author_rank: Frequent Contributor
timestamp: February 19, 2014, 08:24:23 pm
content: Quote from: Atreidae on February 19, 2014, 11:32:07 amfrom what i remember from the video all of the ones he got were silk screened with the department of defense branch on them. also, i know he did a whole video on how he cleaned them up and removed all of the sticker residue, and the pone in the auction looks awfully dirty and is still covered in labels. thats why i wouldnt think it was his.
Fax machine flushed down sewer! - Page 1
Forum section: electronics / general

author: TheWelly888
author_rank: Frequent Contributor
timestamp: February 19, 2014, 05:41:02 pm
content: Scotland have had a few odd stuff shoved down the sewage systems including a Winnie the Pooh bear, kid's bike and a fax machine! Who would like to salvage that POS?
Finding replacement for old amplifier IC - Page 1
Forum section: electronics / general

author: rexxar
author_rank: Frequent Contributor
timestamp: February 25, 2014, 08:20:16 pm
content: Hello all, I've been trying to hunt down a replacement amplifier IC for my car's radio. Of course they have custom part numbers (thanks a lot, Chrysler), but I'm pretty sure it's a Philips TDA1552Q. It may also be the 1557, which has a higher gain. I'm not sure.Thing is, these chips were last manufactured in the 90s, so they're not available anywhere. I tried searching for a replacement, but I've not been able to find anything. Anyone have any ideas? I'm not adverse to modding in two single amps in place of the double-amp Philips part, I don't know if that would be easier than trying to find a direct replacement.And yeah, I could put a newer, better stereo in there, but I'd have to use a blanking plate because it's one of those really tall radios. I really don't want to use a blanking plate, I think it looks bad to have a radio floating in the middle of a big blank square.

author: all_repair
author_rank: Frequent Contributor
timestamp: February 25, 2014, 08:59:55 pm
content: One day I shall put up on ebay. I think I have th3m somewhere.

author: GreyWoolfe
author_rank: Unknown
timestamp: February 25, 2014, 09:58:39 pm
content: Wouldn't a double din radio fit? I am sure that both Scosche and Metra make kits and wiring harnesses for your vehicle. Personally, I would choose Scosche over Metra for the dash kit. I've never liked the way you have to completely build up the Metra kits.

author: Skimask
author_rank: Super Contributor
timestamp: February 26, 2014, 12:43:23 am
content: Have you tried scouring the salvage yards for a like model radio? Those things (eg radios, cassette players, etc are a dime-a-dozen at those places...unless they're new-ish anyways.

author: electronupdate
author_rank: Regular Contributor
timestamp: February 26, 2014, 12:49:06 am
content: ebay shows 7 vendors selling this part ranging from $5 to $14.

author: rexxar
author_rank: Frequent Contributor
timestamp: February 26, 2014, 02:46:16 am
content: Quote from: Skimask on February 26, 2014, 12:43:23 amNo, I completely forgot about that.When/if I have some money, I'll go cannibalize another car; I need a few various bits and pieces.In case anyone wants a life lesson: Don't get a 16 year old car and attend college in the US. That is, unless you don't mind not eating for a few weeks. (This week's unexpected expense was new brake cylinders.)

author: Vgkid
author_rank: Super Contributor
timestamp: February 26, 2014, 04:53:09 am
content: Quote from: rexxar on February 26, 2014, 02:46:16 amThey are like around $20 at the major auto parts stores, or half(or less) that at rockauto.com. They only take a couple of hours to replace.
0805 vs 0603 capacitor - Page 1
Forum section: electronics / general

author: joersam24
author_rank: Contributor
timestamp: February 19, 2014, 07:25:13 am
content: With the same capacitance and voltage rating. Is 0805 capacitor has an advantage compare to 0603 in terms of performance?

author: mariush
author_rank: Super Contributor
timestamp: February 19, 2014, 03:38:00 pm
content: See this thread that explains some of the potential differences between sizes:https://www.eevblog.com/forum/beginners/difference-between-1206-and-0603-cap/Also see this application note, especially the graphs towards the bottom:http://www.maximintegrated.com/app-notes/index.mvp/id/5527You really have to look at the datasheet of each resistor and consider the dielectric type, the derating for a particular voltage and other things. With just this basic information available (0805 vs 0603 one can not tell you that one always wins over the other)
AT&T Picturephone from 1970 - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: February 19, 2014, 06:06:32 am
content: Found this on YouTube. Pretty interesting.Have just started to read more on how it worked.Here is a link that has the original schematics and service manual.http://computerdesignsolutions.com/PicturePhone/KT

author: jaxbird
author_rank: Frequent Contributor
timestamp: February 19, 2014, 06:29:19 am
content: I bet they didn't predict their amazing advance in communication technology would ultimately result in a bunch of middle aged wankers hanging around all day on chat roulette, waiting for an audienceAnyway, cool video.
MSc in Advanced Applied Electronics - opinions? - Page 1
Forum section: electronics / general

author: fenclu
author_rank: Regular Contributor
timestamp: February 14, 2014, 07:09:21 am
content: I found an interesting course. It's called Advanced Applied Electronics. I've heard multiple times that a lot of engineering studies aren't "practical" enough. They claim that you are actually learning practical stuff. You do have to finish your bachelor (3 years here in Poland), which I want to do on a different university. I really like the proscpect of learning practical stuff, the additional bonus is that the course is in English. I'd love to hear a proffesional opinion, what do you think about this course? Is it worthwhile?COURSE INFOCOURSE MATERIALS

author: Bored@Work
author_rank: Super Contributor
timestamp: February 14, 2014, 09:05:15 am
content: You didn't provide any information about the program, except its title. So it is very difficult to judge.Things I would look for are first of all the basics: I.e. is this a proper accredited MSc program, or you do you just get a photoshopped piece of paper in exchange for some money? Well-reputed school/university? Properly equipped and staffed uni? Ratio of teachers to students, etc.I would not read much into that "applied", "advanced" whatever title stuff. Over the last decades it has become common that universities name their programs more fancy to distinguish themselves from other universities, to show a "unique profile"to attract students and sponsors. Instead, get the course descriptions, try to get as detailed course material as you can. Do they teach solid but modern stuff or is it more selected fancy hype-of-the-day crap? Do they just waggle around with soldering irons (which is technician stuff), or do they teach engineering? Do they just teach you to use a certain software version x.y.z with the excuse that this "industry standard" makes you "employable", or do they teach the principles and basics behind that?

author: fenclu
author_rank: Regular Contributor
timestamp: February 14, 2014, 05:03:24 pm
content: D'oh. I kept looking at the information page and forgot to include a linkCOURSE INFOCOURSE MATERIALSThe entire course takes place at the Wroclaw University of Technology, one of the best in the country. As far as I'm aware the labs are very well equipped.

author: KJDS
author_rank: Super Contributor
timestamp: February 14, 2014, 06:02:42 pm
content: Is there an individual project included? If so, ask to see some examples from previous years.

author: fenclu
author_rank: Regular Contributor
timestamp: February 14, 2014, 08:13:43 pm
content: I think there's an obligatory master's project or paper (as always) but universities are usually reluctant to publish this stuff.

author: fenclu
author_rank: Regular Contributor
timestamp: February 18, 2014, 07:09:37 pm
content: I would like to know if this is significantly different to standard master's studies. Seems like too good an oportunity to miss...