hybridfree/eevblog-posts huggingface dataset:
1000 Posts - Page 1
Forum section: electronics / general

author: German_EE
author_rank: Super Contributor
timestamp: October 18, 2015, 06:38:07 pm
content: Here in the German_EE den we're having cake

author: GreyWoolfe
author_rank: Unknown
timestamp: October 18, 2015, 06:39:35 pm
content: And beer?

author: liquibyte
author_rank: Frequent Contributor
timestamp: October 18, 2015, 07:09:16 pm
content: What is the signal to noise ratio on that?

author: GreyWoolfe
author_rank: Unknown
timestamp: October 18, 2015, 07:24:05 pm
content: Cake or beer? In my youth, the more beer I had, the noise floor rose about the signal level exponentiallyUnfortunately, due to those excesses, I am not allowed to drink anymore, meaning I have to put up will all input signals from all the females in the house.Going in my office and closing the door only works on the stepdaughter and granddaughter, SWMBO will open the door and follow me in.

author: free_electron
author_rank: Super Contributor
timestamp: October 18, 2015, 08:32:36 pm
content: This was the cake for my 15000 the post on CircuitsOnline , a dutch electronics forum i terrorized before i joined EEVBlog . ( hence the 15K resistor )

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 19, 2015, 01:23:42 am
content: That's cute...But yeah, the addiction has settled in I'd sayTim

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 19, 2015, 01:26:33 am
content: Congratulations German_EE!I'll get there someday...

author: Smokey
author_rank: Super Contributor
timestamp: October 19, 2015, 01:34:52 am
content: 1000 posts is so yesterday!(welcome to the club)
price alerts via trackif and ifttt (if this, then that) - Page 1
Forum section: electronics / general

author: codeboy2k
author_rank: Super Contributor
timestamp: October 18, 2015, 03:43:45 am
content: I just wanted to post this to let people know of a way to track price changes online..I have been a long time user of If This, Than That at ifttt.com , and I just discovered trackif.com, which can track price changes.If you don't already know, ifttt.com has channels that when an event happens on a channel, an action can be triggered , and actions can be simple alerts like send email , or send an sms, but the actions can also be more complex things like do an API action on some web site online. So you can create an action that connects to your home automation and flicks the light on and off, for example, or one that creates a task in your online task manager (to buy the product with the price drop) or an action that enters the price into a line of a google spreadsheet.So today I was interested in a quad DAC at Newark Canada :ad9106. These are CAD 35.10 right now, but sometimes go on sale for less than $10. Newark/Element14 has these sales often.It didn't list Newark as a supported site, but I tried it anyways, and it seems to be able to understand the web page and can find and extract the current price:See here:https://trackif.com/codeboy2k/iftttand it will keep a chart here:https://trackif.com/domains/newark.com/56230241019d2e2bd9afb8c0/ANALOG-DEVICES-AD9106BCPZ-DAC-QUAD-12BIT-180MSPSo I created an IFTTT "recipe" for tracking this price and send me an SMS if it drops in price. Pretty cool

author: nowlan
author_rank: Frequent Contributor
timestamp: October 18, 2015, 04:30:20 am
content: I use camelcamelcamel.com to track stuff on amazon.com (de/uk).Yous looks to be more generic. Until web layout changes =)

author: codeboy2k
author_rank: Super Contributor
timestamp: October 18, 2015, 06:17:08 am
content: Quote from: nowlan on October 18, 2015, 04:30:20 amHTML5 is helping here. If the target sites are using proper semantic markup and/or metadata it can help tracker sites like this to avoid having to rewrite their scraping code. Hopefully more and more sites are starting to do this.Examples are thedata-* attributesandHTML5 MicrodataFrom the programmer's point of view, automation frameworks likePhantomJSmake scraping a web page fairly easy these days.

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 18, 2015, 06:21:22 am
content: Quote from: nowlan on October 18, 2015, 04:30:20 amSame, I use the camelcamelcamel extension for Chrome...Thanks for sharing, OP! Apparently ifttt can do lots of other things too!

author: codeboy2k
author_rank: Super Contributor
timestamp: October 18, 2015, 07:11:17 am
content: Normally ifttt triggers actions when some condition on the web occurs. With the Do button for Android or iOS it can manually trigger events...push a button on your phone and it can append a line in a google spreadsheet with the date, time, location, etc, to quickly track where you are and at what time of the day. Neat stuff!
EMBEDDED - Which is your favorite/most important software/hardware tool ? - Page 1
Forum section: electronics / general

author: ez24
author_rank: Super Contributor
timestamp: October 18, 2015, 12:36:56 am
content: Go to page 29 to see the correct answerhttp://bd.eduweb.hhs.nl/es/2014-embedded-market-study-then-now-whats-next.pdfPS I am trying to find more info on the correct answer
What went wrong. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: October 17, 2015, 02:04:15 pm
content: Hi I was talking with my sisters about the dangers of Lithium batteries and how they can catch fire, so I thought a demonstration would be in order.I took this cell outside and stabbed it with a screw driver, nothing happened so I put some water on it and it blew a few bubbles so next I tried a blow lamp and still nothing happened other than the blow lamp melted the aluminium foil cover a bit.Did I stumble across the only non flammable LiPo. or what.

author: zapta
author_rank: Super Contributor
timestamp: October 17, 2015, 02:09:20 pm
content: Obviously you got a bad one.;-)

author: hayatepilot
author_rank: Frequent Contributor
timestamp: October 17, 2015, 02:16:08 pm
content: The cell was probably empty.Fully charged cells react quite violently if stabbed with a screwdriver.Greetings

author: Galenbo
author_rank: Super Contributor
timestamp: October 17, 2015, 02:53:43 pm
content: Quote from: G7PSK on October 17, 2015, 02:04:15 pmLithium batteries aren't dangerous, people (like you) are.:-) :-) :-)

author: Stonent
author_rank: Super Contributor
timestamp: October 17, 2015, 02:59:25 pm
content: The answer is reverse connect to a car battery charger

author: amyk
author_rank: Super Contributor
timestamp: October 17, 2015, 03:54:51 pm
content: Quote from: hayatepilot on October 17, 2015, 02:16:08 pmThis. What voltage was it at before the abuse? If it was already dead, it won't do much.The fire comes from all the energy released by the cell when it gets short-circuited.

author: bktemp
author_rank: Super Contributor
timestamp: October 17, 2015, 04:34:25 pm
content: If you want to do a nice demonstration, remove the protection circuit and apply 12V limited to a couple of amps to the battery and wait.I did this once. As soon as the battery gets overcharges gases are beeing produced, inflating the battery. Those gases are highly flammable. Suddenly the battery popped open and the gas ignited, rocketing the battery about 5 meters away while producing sounds like a rocket.

author: zapta
author_rank: Super Contributor
timestamp: October 17, 2015, 04:51:21 pm
content: If you are interested in lipo mayhem, you can find examples herehttps://www.youtube.com/results?search_query=lipo+fire(don't try it at home, it can be extremely dangerous).

author: IanB
author_rank: Super Contributor
timestamp: October 17, 2015, 08:24:57 pm
content: Quote from: amyk on October 17, 2015, 03:54:51 pmPrecisely. Also the fire comes from the flammable organic solvent used for the electrolyte.When you stab a charged battery you create a short circuit between the layers. The large short circuit current that results heats the metal parts to red hot, which ignites the electrolyte. In contact with air the solvent burns vigorously, accelerated by the heat from the shorted battery.
Albert's Michelson's Harmonic Analyser - Page 1
Forum section: electronics / general

author: ElectricGuy
author_rank: Regular Contributor
timestamp: November 12, 2014, 06:29:49 pm
content: Have you seen this?Its just Outstanding!!!Part 1 -http://youtu.be/NAsM30MAHLgPart 2 -http://youtu.be/8KmVDxkia_w

author: codeboy2k
author_rank: Super Contributor
timestamp: October 16, 2015, 11:26:37 am
content: I'm bringing this thread back to life because I just came across this today, and it's a pretty amazing machine, more people should see it.The video is well done with a good explanation of how it works.In summary, it allows one to input a discretized waveform, it will do a Fourier Analysis of the waveform using purely mechanical motion, then you can extract the 20 coefficients from the device, and use the device itself to re-construct the initial waveform from the 20 coefficients.More details here :http://www.engineerguy.com/fourier/
Trace or track? - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: October 15, 2015, 05:04:06 pm
content: So, for the coppers on PCBs, are they called traces or tracks? I have seen both, so which one is more correct, or when to use which?

author: AF6LJ
author_rank: Unknown
timestamp: October 15, 2015, 05:07:49 pm
content: Yes

author: Fraser
author_rank: Super Contributor
timestamp: October 15, 2015, 05:37:48 pm
content: Either. Both are accurate descriptions of the conductors on a PCB. Language is about communicating information to another person or party. Traces and tracks communicate the required information.Fraser

author: alexanderbrevig
author_rank: Frequent Contributor
timestamp: October 15, 2015, 06:53:54 pm
content: It depends if you track a trace, or trace a track I guess

author: AF6LJ
author_rank: Unknown
timestamp: October 16, 2015, 01:05:17 am
content: Quote from: blueskull on October 15, 2015, 05:41:45 pmBoth terms are perfectly acceptable; although I hear the term trace used more often.That may be different where you are.

author: Cubdriver
author_rank: Unknown
timestamp: October 16, 2015, 01:59:03 am
content: I use 'trace', though either is acceptable in my opinion, and I'd expect anyone involved with printed circuit boards who somehow hadn't heard one or the other should be able to glean its meaning by the context in which it's used.-Pat

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 16, 2015, 03:00:28 am
content: Our school in Australia uses 'tracks'. I'm probably the only one at the school that uses the word trace!(and then I get weird looks)
The Delorian is in Town! - Page 1
Forum section: electronics / general

author: TSL
author_rank: Regular Contributor
timestamp: October 15, 2015, 09:49:05 pm
content: Hi Dave & other BTTF fans,Its the 30th Anniversary of BTTF and Channel 7 have brought the Delorian to town. Its parked outside their studios in Martin Place.Just saw it on TVThought ya might like to knowcheersTim

author: TheSteve
author_rank: Unknown
timestamp: October 15, 2015, 10:42:59 pm
content: I assume you mean a DeLorean?Picture of VIN5439 attached, which was my baby for 9 years.

author: rx8pilot
author_rank: Super Contributor
timestamp: October 15, 2015, 10:49:27 pm
content: Quote from: TheSteve on October 15, 2015, 10:42:59 pmDid you roll that to the Enchantment Under the Sea dance with Lorraine?

author: EEVblog
author_rank: Unknown
timestamp: October 15, 2015, 11:01:29 pm
content: Yep I knowI have other arrangements(but sadly not until after the 21st)Claudia Wells is also in town.

author: EEVblog
author_rank: Unknown
timestamp: October 15, 2015, 11:03:38 pm
content: Quote from: TheSteve on October 15, 2015, 10:42:59 pmNope, a real time machine Delorean. Done by the guy who helped with the official restoration of the A hero car.

author: TheSteve
author_rank: Unknown
timestamp: October 15, 2015, 11:20:10 pm
content: Quote from: EEVblog on October 15, 2015, 11:03:38 pmI was referring to his spelling actually. I figured it was a DeLorean done up BTTF style.

author: TSL
author_rank: Regular Contributor
timestamp: October 15, 2015, 11:31:30 pm
content: Quote from: TheSteve on October 15, 2015, 11:20:10 pmYep - my bad, I blame it on the spwll checkree
OUTATIME - Page 1
Forum section: electronics / general

author: oxcart
author_rank: Contributor
timestamp: October 16, 2015, 09:20:01 am
content: http://www.toyota.com/outatime

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 16, 2015, 10:12:06 am
content: LOL, that's pretty cool.If anyone hasn't seen it, there a little minigame when you press 'play' near the bottom of the screen. Neat!
Counterfeit Chargers Effect on AM Radio - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 13, 2015, 09:33:57 pm
content: Random find, interesting to watch.

author: Tomorokoshi
author_rank: Super Contributor
timestamp: October 13, 2015, 10:49:13 pm
content: eBay really does seem to be a haven for counterfeiters. I wonder how their unwillingness to crack down opens them up to legal liability?

author: SL4P
author_rank: Super Contributor
timestamp: October 14, 2015, 07:28:32 am
content: This problem has actually worked in our favour - but not a reason to support cheap PSUs!In a facility with over 100 racks of equipment, we had some oddball signal issues, but couldn't put our finger exactly on the cause.One of the more experienced techs, went out and purchased the cheapest 'knock off' AM radio he could find - then walked up and down the rows of racks.Bingo - the low-cost RF stage ws wide open to the harmonics of the poorly designed switch-mode... screaming in the receiver!Quickly identified as the AC plug-pack for an otherwise sophisticated and well designed device / system!

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 14, 2015, 09:15:39 am
content: Wow, that's very interesting, thanks for sharing!

author: VK5RC
author_rank: Unknown
timestamp: October 14, 2015, 09:46:44 am
content: The RF noise from poorly designed/built SWPSUs is driving the amateur radio community nuts, the noise at my place (suburban Adelaide) is S9 or -70dBm from about 1-25MHz.

author: BravoV
author_rank: Super Contributor
timestamp: October 14, 2015, 09:56:41 am
content: When it comes to consumer's gadgets AC-DC power adapter, counterfeit will never beat the genuine one.An example below from Toshiba laptop, looking at the current copper price, I guess the cost of the two pieces of the copper shielding it self probably like 50% cost of the BOM of the fake one.

author: bitseeker
author_rank: Super Contributor
timestamp: October 15, 2015, 03:22:01 am
content: The little phone chargers are similarly problematic. In addition to putting off lots of RFI, they also send dirty power to the device. I tried one on a Galaxy S smartphone and with the fake charger connected, the touchscreen wouldn't respond.Beware of cheap chargers of all kinds.

author: amyk
author_rank: Super Contributor
timestamp: October 15, 2015, 03:40:42 am
content: This might be completely wrong, but I seem to remember reading somewhere that the FCC hands out free ferrite beads to those who ask...

author: Richard Crowley
author_rank: Super Contributor
timestamp: October 15, 2015, 04:52:47 am
content: SMPS generating RFI is not limited to cheap knock-off products.Even the "good" OEM line-lumps are pretty horrendous if you care about low-level audio or RF signals nearby.

author: bitseeker
author_rank: Super Contributor
timestamp: October 15, 2015, 10:25:59 pm
content: Quote from: amyk on October 15, 2015, 03:40:42 amIf you can re-find that info, that'd be a good resource to post here.
Good quality Australian Cookware (For the chefs among us) - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: October 07, 2015, 08:03:37 am
content: I don't normally plug a product but I think this one is worthy of a mention.SOLIDteknicsaren't a new company, they already produce a line of cast iron cookware which is sold throughout Australia.They are launching a new line of one-piece steel cookware viaKickstarter. None of this bullshit Teflon coated crap, just proper Australian steel. No rivets or crappy handles to break. This sort of gear will last forever if you look after it right.No, I don't have any steaks (pardon the pun) in the company; I just love cooking and nothing pisses me off more than cheap, poor quality products and I'd rather not dish out (another pun) thousands for fancy branded stuff.

author: Macbeth
author_rank: Super Contributor
timestamp: October 07, 2015, 11:25:27 am
content: There is only one type of Australian cookware I know of...

author: Halcyon
author_rank: Unknown
timestamp: October 13, 2015, 04:37:00 am
content: That is a terrible stock photo!

author: zapta
author_rank: Super Contributor
timestamp: October 14, 2015, 02:52:36 am
content: Australian style BBQ, instructions here:

author: Mechanical Menace
author_rank: Super Contributor
timestamp: October 14, 2015, 03:05:44 am
content: Quote from: Halcyon on October 07, 2015, 08:03:37 amI inherited my grandmothers cookware. They were her grandmothers. Still in more than good condition.
Help with error message from this site - Page 1
Forum section: electronics / general

author: xrunner
author_rank: Super Contributor
timestamp: October 12, 2015, 10:59:40 pm
content: I've been getting the error shown below for about two weeks, but ONLY on the laptop I use in the evening. It does not appear on my other PC. It appears when I click on the "Show new replies to your posts" link. The error message does not appear at any other time or on my other computer.I have deleted all the cookies associated with this forum on this computer but the message does not go away. Any ideas?502 - Bad GatewayWe are sorry for the inconvenience that this error may be causing you. We are aware of the issue and are working to resolve it, please be patient.There is no need to report this error.Thank you for your patience,Dave & gnif

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 13, 2015, 12:08:10 am
content: Have you tried another browser?

author: kg4arn
author_rank: Unknown
timestamp: October 13, 2015, 12:17:57 am
content: I also get it only on my iPhone and only when trying to access page 2 of recent unread topics.

author: xrunner
author_rank: Super Contributor
timestamp: October 13, 2015, 03:28:50 pm
content: Quote from: crispy_tofu on October 13, 2015, 12:08:10 amI just tried it on the laptop using Microsoft Edge and it does not happen. But it still happens when I use Firefox on the laptop, but only on the laptop.

author: Stupid Beard
author_rank: Regular Contributor
timestamp: October 13, 2015, 03:59:22 pm
content: It happens when there's an issue between Cloudflare and Dave's servers. It's nothing to do with your side of things and it's usually very temporary.If you are still seeing it all the time on one browser, then that's going to be your browser cache. If you force a refresh with shift F5 (or ctrl shift r, or whatever it is on your browser) that should fix it.

author: xrunner
author_rank: Super Contributor
timestamp: October 13, 2015, 10:43:23 pm
content: Quote from: Stupid Beard on October 13, 2015, 03:59:22 pmOK cleared the cache and it's fixed.Thanks.
Agilent PN 8590-* Product Notes - Page 1
Forum section: electronics / general

author: George_Race
author_rank: Regular Contributor
timestamp: October 13, 2015, 01:01:03 pm
content: At one time Agilent put out a series of product notes. I am looking specifically for the set for the HP-8590 Spectrum Analyzer.So far I have been able to find PN 8590-2 and -6. I am sure there must be a lot more in the series.Does anyone know where they can be downloaded? It looks like they were originally published in .pdf form.Thanks
Thumbs up for OSHPark service team - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: October 12, 2015, 10:13:38 pm
content: I ordered a very urgent PCB from OSHPark days ago, and how stupid I was, I chose free shipping. I wrote them an Email today says I would like to change the shipping to 3 days priority with additional cost.Guess what I got from them? Free 2 days shipping!Attached is their response:Hi Bo,Not a problem in the least! I've gotten it bumped up to 2 Day Priority for you. Most likely though, will be next day. Don't worry about the cost, we got this one.-DanHuge thumbs up for them!

author: tech5940
author_rank: Unknown
timestamp: October 12, 2015, 10:35:33 pm
content: That was nice of them! I had a similar experience I placed a order for some boards and got a free upgrade to "Super swift" service because they had some extra space available on that run. Very pleased with their service even before the free perks.Sent from my iPad using Tapatalk

author: jav
author_rank: Contributor
timestamp: October 13, 2015, 07:51:47 am
content: I've also been upgraded to "super swift". Being in Europe, I wonder the difference it'll make considering shipping, but a great service and quality anyway (even without free upgrades).

author: JoeB83
author_rank: Regular Contributor
timestamp: October 13, 2015, 07:50:24 pm
content: I also have been upgraded for free in the past. OSHPark has been great in my experience, and they'll continue to get my service. In fact, I have $60 worth of PCBs coming from them today!
SMD Soldering Rolson Visor ? - Page 1
Forum section: electronics / general

author: Flump
author_rank: Frequent Contributor
timestamp: October 12, 2015, 03:18:18 pm
content: Hi All I am just entering the world of SMD's and wondering if any of you have usedthe Rolson 60390 Magnifying Visor for soldering them.http://www.ebay.co.uk/itm/Rolson-Tools-60390-LED-Head-Loupe-Magnifier-Visor-/251929311877?hash=item3aa8283a85If the above Visor is no good can anyone suggest another budget solution ?please keep in mind I have never soldered SMD before and don't know how muchof it I will do, probably not very much at all so I don't want to spend a lot of moneyfor something I am not going to get much use out of.This is what I am practising on.http://www.ebay.co.uk/itm/311271520969?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

author: tggzzz
author_rank: Super Contributor
timestamp: October 12, 2015, 04:45:49 pm
content: Quote from: Flump on October 12, 2015, 03:18:18 pmFrom the picture, that is exactly the type I use for SMD and other fine work. Clearly I find it satisfactory, but I'll note that others seem to be satisfied with (and may even prefer) illuminated magnifying lenses.For my other SMD experiences, hints and tips, see teh various pages inhttps://entertaininghacks.wordpress.com/tag/smd/

author: Flump
author_rank: Frequent Contributor
timestamp: October 12, 2015, 05:38:53 pm
content: thanks for the info tggzzz i look forwars to having a look on your web later with a nice cup of tea.I also found this visor with higher magnification and it looks better madeI wonder if that would be better choice for smd workhttp://cpc.farnell.com/linear-tools/59-650-747/head-band-with-illuminated-magnifier/dp/PY31675http://www.lineartools.co.uk/DataSheets-2014/1318%2059-650-747.pdf

author: tggzzz
author_rank: Super Contributor
timestamp: October 12, 2015, 06:04:13 pm
content: Quote from: Flump on October 12, 2015, 05:38:53 pmI wouldn't bother with extra magnification. When I didn't need reading glasses the magnification would have been sufficient. Now I need glasses I just use the visor (usually the middle two lenses) plus glasses. If you need extra magnification then get some £5 glasses from Sainsburys.

author: RickBrant
author_rank: Unknown
timestamp: October 12, 2015, 06:54:08 pm
content: Remember that the higher the magnification the shorter the working distance. Gets tough to get your iron in there between the lens and the board!

author: tggzzz
author_rank: Super Contributor
timestamp: October 12, 2015, 09:13:48 pm
content: Quote from: tggzzz on October 12, 2015, 06:04:13 pmI forgot; with my visor you can insert two lenses, thus increasing the magnification. But I doubt you'll need to do that.
Measuring the Resonant Frequencies Of Heat Sink Tines - Page 1
Forum section: electronics / general

author: Deathwish
author_rank: Unknown
timestamp: October 12, 2015, 07:37:05 pm
content: I found this interesting.http://www.emcesd.com/tt2011/tt120111.htmHe has a lot of interesting things on his pages so might be a good read to some.
satcure, martin pickering and jack's workshop - Page 1
Forum section: electronics / general

author: Deathwish
author_rank: Unknown
timestamp: October 10, 2015, 11:40:55 pm
content: Many years ago I used to get television servicing magazine in the UK, inside it was a column called Jacks workshop written bt Martin Pickering, I had many a chuckle at his writings, I haven't read or seen of him in many years since around the mid to late 90's, i just found he has a site called satcure and found his articles again. I found him a very funny man. Has anyone else read his articles ?.

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 11, 2015, 06:09:08 am
content: Too bad Australians (or probably many other countries as well) can't access his website...QuoteJust a UK thing? Come on...

author: Cubdriver
author_rank: Unknown
timestamp: October 11, 2015, 07:38:50 am
content: SOL gaining access from the US as well - I got the same access denial message. Apparently we're a hacker haven too.-Pat

author: Deathwish
author_rank: Unknown
timestamp: October 11, 2015, 07:58:08 am
content: weird. his stories as Jack are herehttp://www.your-book.co.uk/jack.htmhttp://satcure.co.uk/meh, just found he does faceache too....https://www.facebook.com/groups/178413172277879/

author: SeanB
author_rank: Super Contributor
timestamp: October 11, 2015, 08:42:18 am
content: Working for me from South Africa. Perhaps for those who want to look at the Greek haven he is in I would suggest using one of the myriad of VPN suppliers......Another time sinkhole there, I also used to subscribe to Television, till they suddenly folded one issue.
The state of laptops from 1989 - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 09, 2015, 07:30:29 pm
content: This is an interesting and fun to watch retro episode of the Computer Chronicles from 1989 on the state of laptops.Most of the concepts and ideas in place today are all there. Just limited by the technology of the time.I had no idea you could get an SSD in 1989, (in 1 or 2 megabytes).

author: bitslice
author_rank: Frequent Contributor
timestamp: October 09, 2015, 08:55:40 pm
content: I think Sinclair's wafer drive predated SSD's

author: free_electron
author_rank: Super Contributor
timestamp: October 09, 2015, 10:38:11 pm
content: Wow ! Gary Kildall ! Father of CP/M , Founder of Digital Research (remember DR-DOS) and inventor of one of my favorite programming languages : PL/M

author: wagon
author_rank: Frequent Contributor
timestamp: October 09, 2015, 11:09:44 pm
content: That was a blast from the past. It goes to show how good we have it now!

author: sony mavica
author_rank: Frequent Contributor
timestamp: October 10, 2015, 07:05:39 am
content: Quote from: Homer J Simpson on October 09, 2015, 07:30:29 pmcool video

author: SundayProgrammer
author_rank: Contributor
timestamp: October 10, 2015, 03:55:38 pm
content: Bought my first laptop in 1990. Wasn't cheap...

author: Rasz
author_rank: Super Contributor
timestamp: October 10, 2015, 04:20:02 pm
content: battery backed SRAM, not SSDRemember John Connor hacking ATMs in Terminator 2? He used Atari Portfolio (x86 + DOS), same type of storage.

author: PA0PBZ
author_rank: Super Contributor
timestamp: October 10, 2015, 06:49:56 pm
content: Oh man, apart from the NEC you would not dare to call these computers laptops now, at best they are portable computers. One look at your smartphone and you have to admire the progress made since then. Cool video!
JPL open house 10/10-11/2015 - Page 1
Forum section: electronics / general

author: bills
author_rank: Frequent Contributor
timestamp: October 10, 2015, 05:18:44 am
content: http://www.jpl.nasa.gov/events/open-house.phpFor you space cadets in so cal.

author: bills
author_rank: Frequent Contributor
timestamp: October 10, 2015, 05:29:23 am
content: This is a great chance to see the cutting edge stuff that all us American rednecks have built. ( just leave your weapons at home)
Australian Synchrotron Open Day - Sunday October 11 - Page 1
Forum section: electronics / general

author: wycx
author_rank: Newbie
timestamp: October 10, 2015, 03:46:35 am
content: This may be of interest to Melbourne-based eeblog forum members:Sunday is the annual Australian Synchrotron open day. This is the one day of the year the general public is able to wander around the experiment floor, see all the beamlines and even parts of the storage ring.You need a ticket, but fortunately tickets are free!Details and tickets here:http://www.eventbrite.com.au/e/australian-synchrotron-open-day-2015-tickets-18128453693
Good at quickly understanding complex manuals and datasheets? :) - Page 1
Forum section: electronics / general

author: DenzilPenberthy
author_rank: Frequent Contributor
timestamp: October 09, 2015, 10:44:36 am
content: Do you think you're good at quickly parsing and communicating complex information like datasheets?I've just seen this game on Reddit called "Keep talking and no one explodes" and it looks like it could be a lot of fun. Or a very interesting group exercise in a job interview maybe"One player is trapped in a virtual room with a ticking time bomb they must defuse. The other players are the “Experts” who must give the instructions to defuse the bomb by deciphering the information found in the bomb defusal manual. But there’s a catch: the experts can’t see the bomb, so everyone will need to talk it out – fast!"And guess what... the manual is complexThe game:http://www.keeptalkinggame.com/The manual:http://www.bombmanual.com/manual/1/html/index.html

author: Maxlor
author_rank: Frequent Contributor
timestamp: October 09, 2015, 11:40:29 am
content: This looks awesome! And the manual has some really evil bits in it...

author: DenzilPenberthy
author_rank: Frequent Contributor
timestamp: October 09, 2015, 11:44:54 am
content: It's still simpler than trying to get a simple RS232 interface working if yesterday's shenanigans at work are anything to go byA wire module can have 3-6 wires on it.Only the one correct wire needs to be cut to disarm the module.Wire ordering begins with the first on the top.3 wires:If there are no red wires, cut the second wire.Otherwise, if the last wire is white, cut the last wire.Otherwise, if there is more than one blue wire, cut the last blue wire.Otherwise, cut the last wire.4 wires:If there is more than one red wire and the last digit of the serial number is odd, cut the last red wire.Otherwise, if the last wire is yellow and there are no red wires, cut the first wire.Otherwise, if there is exactly one blue wire, cut the first wire.Otherwise, if there is more than one yellow wire, cut the last wire.Otherwise, cut the second wire.5 wires:If the last wire is black and the last digit of the serial number is odd, cut the fourth wire.Otherwise, if there is exactly one red wire and there is more than one yellow wire, cut the first wire.Otherwise, if there are no black wires, cut the second wire.Otherwise, cut the first wire.6 wires:If there are no yellow wires and the last digit of the serial number is odd, cut the third wire.Otherwise, if there is exactly one yellow wire and there is more than one white wire, cut the fourth wire.Otherwise, if there are no red wires, cut the last wire.Otherwise, cut the fourth wire.

author: German_EE
author_rank: Super Contributor
timestamp: October 09, 2015, 06:41:39 pm
content: Better than the wiring in an aircraft where they are all white
Electronics Salvage places in Gauteng - Page 1
Forum section: electronics / general

author: kolbep
author_rank: Frequent Contributor
timestamp: October 08, 2015, 09:14:05 am
content: Hi AllAny electronics salvage places or something that might interest me in Gauteng ??I am in Boksburg for a memorial service, and would like to browse.P

author: kolbep
author_rank: Frequent Contributor
timestamp: October 08, 2015, 09:18:54 am
content: One nice thing is that I am staying at a house that is on the final approach to JHB int airport. The planes literally go right over the house, and the runway is just over the freeway from the house.Flight tracker is working in full swing on my phone.As well as another listening device that cannot be mentioned in this area.
The Davey sonic heater, fact, fiction or con - Page 1
Forum section: electronics / general

author: Deathwish
author_rank: Unknown
timestamp: October 08, 2015, 12:19:56 am
content: What is your opinionhttp://rexresearch.com/davey/davey.htm

author: ajb
author_rank: Super Contributor
timestamp: October 08, 2015, 04:14:39 am
content: An electric immersion heater transfers damn close to 100% of the energy it consumes into the water. The only limitations are in insulating against thermal losses to the environment and optimization of container size, which apply equally to any heating method. So maybe he's come up with something nearly or even as good, but there's not really any room for him to have come up with anythingbetter.

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 08, 2015, 04:58:12 am
content: A heat pump can do better, but it's tricky to make one work well all the way to the boiling point and also hard to make a small one worthwhile.

author: ConKbot
author_rank: Super Contributor
timestamp: October 08, 2015, 06:37:07 am
content: Probably my biggest pet peeve. "Revolutionary" heaters. And it all started with thesehttp://www.edenpure.com/edenpure-usa-1000-quartz-infrared-portable-space-heater.$400, 1.5kw heater. A coworker got one. Infrared heater that has no line of sight to the element.but it has a copper "heat exchanger"and a fan. So it's just a forced air heater. The only advantage over a $15 ceramic 1.5kw heater is that it has a little more throw on the fan, and it looks nicer.The best straight electric room heater in my experience is a box fan parked behind an electric oil filled radiator. It heats the room evenly, the heater never gets hot enough to be a safety risk (with the forced air, thermostat only needs to be a few degrees above your desired room temp) and only about $80 or less between the two.My opinion? 4.2j/g-C makes you it's bitch and there isn't a way around it. People think "resonance"is magic, especially since they "know" microwaves use "resonance" to heat water and look how fast they work.
Scam time: WAV-X  - Page 1
Forum section: electronics / general

author: Sparks
author_rank: Contributor
timestamp: October 07, 2015, 10:49:15 pm
content: I had to run into Walmart today to get a new phone, while waiting I started browsing the shelves. One thing caught my eye, the WAV-X. A small disk which is fixed to the back of your phone to reduce radiation to safe levels. Just had to pick one up and read the marketing on this great new technology. The gentleman behind the counter tells me people are actually buying these.I just had to google the brand and found the websitehttp://www.wav-x.com/default.aspwith a very interesting Youtube videohttps://www.youtube.com/v/YLKc46SS8-g?autoplay=1&rel=0&enablejsapi=1&playerapiid=ytplayer. This seems about as bad as the Batteriser, if not worse. The Batteriser has some niches where it may prove useful. This is something you just stick on the back of the device, which how many people know where their antennae are? Beyond which, the demo is of an emitter and sensor very close together and the disk placed in between, cell towers are far and much higher power. Not to mention this is on the side away from your head and will no doubt reduce your cell signal if it affects anything at all.$29.97 Think I'll save my money.

author: Macbeth
author_rank: Super Contributor
timestamp: October 07, 2015, 11:04:20 pm
content: If it actually did reduce "cell phone radiation" by 90% then I would expect the customers to go ballistic when they get no coverage. But of course it won't even do what it claims anyway. Maybe the 90% reduction is based on Hahnemann principles.But this shit was going when cell phones first became popular 15-20 years ago. Pretty much like all new inventions that come to market.

author: amyk
author_rank: Super Contributor
timestamp: October 08, 2015, 04:30:07 am
content: Yes, these have been around for many years. Attempting to filter signals is likely going to make the phone up the power even more in an attempt to communicate...
Getting to tour REI soon... What should I expect to see? - Page 1
Forum section: electronics / general

author: rankupgamers
author_rank: Newbie
timestamp: October 08, 2015, 12:19:15 am
content: So, I'm an avid watcher of Dave and all of his stuff for a few years and I never really had a reason to join up here on the forums, but, as the title implies, I'm getting to tour the Research Electronics International (http://www.reiusa.net/cgi-bin/main.cgi) building here in Algood, TN. I've seen a few things from them from time to time (like the bug sweeper fromhttps://youtu.be/V9tcC7Ks4_c?t=1m22s. Anything special I should be on the lookout for during my first electronics factory tour?And should I take my tin foil hat with me to the counter-surveillance center of America?
BBS (Bulletin Board Service): The Documentary - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: October 06, 2015, 08:45:15 am
content: Some interesting nostalgia from a bunch of nerds who grew up with this technology. I *just* missed out on it. I grew up with CompuServe, Trumpet Winsock and eventually ISDN.

author: Mechanical Menace
author_rank: Super Contributor
timestamp: October 06, 2015, 09:00:21 am
content: I *just* got in on it, and dialling in to a BBS with my BBC or Atari ST was my way onto the internet before the www hit the mainstream. I have fond memories of local only hypertext systems been amazing and then every man and his dog making HyperCard implementations for Ataris, Amigas, and IBM PCs...I'm not that old either, I was a boring child :/

author: GNU_Ninja
author_rank: Regular Contributor
timestamp: October 06, 2015, 09:43:39 am
content: http://www.masswerk.at/googleBBS/

author: bitseeker
author_rank: Super Contributor
timestamp: October 07, 2015, 09:57:36 pm
content: Thanks for posting this, Halcyon. Brings back memories.
you know you want a zx spectrum. go for it. - Page 1
Forum section: electronics / general

author: Deathwish
author_rank: Unknown
timestamp: October 09, 2015, 10:14:59 am
content: http://cpc.farnell.com/ceratech/zx-spectrum/the-recreated-zx-spectrum/dp/CS2891641?ost=cs2891641

author: Ian.M
author_rank: Super Contributor
timestamp: October 09, 2015, 10:23:53 am
content: UGH!!!!Its just a bluetooth keyboard controller in a Speccy-lookalike case.No Z80, no expansion bus and some rather dubious marketing.

author: DenzilPenberthy
author_rank: Frequent Contributor
timestamp: October 09, 2015, 10:26:49 am
content: I've still got my real one

author: Balaur
author_rank: Unknown
timestamp: October 09, 2015, 10:33:11 am
content: Quote from: DenzilPenberthy on October 09, 2015, 10:26:49 amGee, my own is still waiting for me at my parents' place to get a logic analyzer and fix it.

author: crispy_tofu
author_rank: Super Contributor
timestamp: October 09, 2015, 10:34:57 am
content: Quote from: Ian.M on October 09, 2015, 10:23:53 amAgreed. It's just a fancy keyboard...

author: Macbeth
author_rank: Super Contributor
timestamp: October 09, 2015, 10:48:45 am
content: ...and Chuckie Egg? Sorry but that originated on the BBC Micro. For the speccy surely Manic Miner would be more appropriate.(I've got a +3 that needs its FDD belt replacing and a BBC B that needs a DS 80 track 5 1/4" drive replacement)

author: Balaur
author_rank: Unknown
timestamp: October 09, 2015, 10:56:01 am
content: Quote from: Macbeth on October 09, 2015, 10:48:45 amDIZZY Forever!

author: Deathwish
author_rank: Unknown
timestamp: October 09, 2015, 11:00:11 am
content: I had a 128k , least I think it was , it had a tape drive on the right side.

author: SL4P
author_rank: Super Contributor
timestamp: October 09, 2015, 11:43:09 am
content: Quote from: Balaur on October 09, 2015, 10:33:11 amSend it to me... I'll get it running without an LA !Very simple Z80 architecture - static operation / single stepping will find the problem!

author: Unknown
author_rank: Unknown
timestamp: October 09, 2015, 12:05:34 pm
content: "Works as a wireless controller for use with Android and iOS devices and as a fully functioning Bluetooth keyboard".... possibly the only keyboard worse than a touchscreen one.

author: GNU_Ninja
author_rank: Regular Contributor
timestamp: October 09, 2015, 12:20:16 pm
content: Just had a look on e-bay, plenty of real Speccy's on there cheaper than that CPC imposter

author: Balaur
author_rank: Unknown
timestamp: October 09, 2015, 12:21:59 pm
content: Quote from: SL4P on October 09, 2015, 11:43:09 amHeh, heh. Yes, I know. I once repaired the poor Speccy after accidentally touching the 24V of a home-made EPROM programmer to the extension bus. I had to replace a lot of ICs, including the CPU and memories. Thanfully, everything else was standard logic. No Ferranti ULA in my clone.
Dialog Semiconductor has agreed to purchase Atmel Corp - Page 1
Forum section: electronics / general

author: casinada
author_rank: Frequent Contributor
timestamp: September 29, 2015, 12:33:49 am
content: I can't believe nobody has commented on this yethttp://electronicdesign.com/iot/dialogs-atmel-move-targets-integrated-systems-industrial-iot-and-smart-homes

author: miguelvp
author_rank: Super Contributor
timestamp: September 29, 2015, 03:40:29 am
content: On the actual article or on the news of Dialog acquiring Atmel? because the later has been discussed in two threads that I know off.

author: casinada
author_rank: Frequent Contributor
timestamp: September 29, 2015, 04:33:36 am
content: Did a search on Atmel and didn't see anything related before I posted.

author: mariush
author_rank: Super Contributor
timestamp: September 29, 2015, 04:36:09 am
content: Sigh...https://www.google.com/search?q=dialog+atmel+site:eevblog.com&ie=utf-8

author: Godzil
author_rank: Frequent Contributor
timestamp: October 06, 2015, 03:11:53 pm
content: Dialog Semi headquarter is just one level on top of the office where I work...Anyone have heard about this company before?

author: free_electron
author_rank: Super Contributor
timestamp: October 06, 2015, 08:14:53 pm
content: Yeah dialog buys Atmel. Dialog has been around since 1984 ... old company . lots of money. highly specialized circuitry.any iphone and ipad has a massive PMIC made by Dialog. these power controller shave like 30 switching regulators and 50 linear regulators on board. Big fat BGA devices.Dialog is an ASIC / ASSP maker. they have virtually no open market devices. they spin custom silicon on demand.

author: Godzil
author_rank: Frequent Contributor
timestamp: October 07, 2015, 10:16:41 am
content: So here the motherboard of the iPhone5s:https://www.ifixit.com/Teardown/iPhone+5s+Teardown/17383#s52342Where are the "big fat BGA" Dialog Semi chip on that? Can't see any.

author: Balaur
author_rank: Unknown
timestamp: October 07, 2015, 01:00:00 pm
content: Quote from: Godzil on October 07, 2015, 10:16:41 amThe Apple 338S1216 (the green border IC) fromthis picturehas beenconfirmedto be made by Dialog, same as the predecessor.

author: Godzil
author_rank: Frequent Contributor
timestamp: October 07, 2015, 03:08:19 pm
content: Oh ok, strange taht I never heard of them before.
Just posting a batteriser related image.... - Page 1
Forum section: electronics / general

author: lukewproffitt
author_rank: Newbie
timestamp: October 06, 2015, 05:33:18 pm
content: I seem to be getting a lot of abuse from utter morons who foam from the mouth when anyone dare question the Batteriser. Last night I commented on a video with some real world numbers (based on my bikes starter motor) and mentioned the battery is considered dead at 11v. Apparently I am completely wrong, because a 12v lead acid battery is considered dead when it drops to 10.9, not when it drops below 11.Anyway, I commented on one of the "fan page" videos, took a screen shot with date and time in clear view, and just wanted to post it online somewhere so when my comment gets deleted (it contains a simple way for them to prove that the damn battery condom works), I have an online copy of it.
How to contact Dave/EEVblog store - Page 1
Forum section: electronics / general

author: Siwastaja
author_rank: Super Contributor
timestamp: October 06, 2015, 03:59:50 pm
content: Hi,Any hints on how to contact Dave? I had an issue with my uCurrent order, not because of EEVblog at all (they did their part completely right), but nevertheless I need to contact Dave / Dave Jr. I have tried email (eevblog dot official) and private messaging EEVBlog on this forum, but no reply. Anyone know proper contact address that they monitor? I cannot find anything else. I'm sorry I need to do it this way, and will remove the topic when I get in touch with them. Thank you for understanding.

author: miguelvp
author_rank: Super Contributor
timestamp: October 06, 2015, 04:01:54 pm
content: Use e-mail.http://www.eevblog.com/about/Look for Contact Dave.
Standard for aluminum extruded project boxes? - Page 1
Forum section: electronics / general

author: iampoor
author_rank: Frequent Contributor
timestamp: October 04, 2015, 06:02:42 am
content: HiComing from the world of guitar effects, a few "standard" enclosure sizes exist. 1590A, 125B, 6500, 1290L, etc. The majority of guitar pedal enclosures available are "clones" of Hammond enclosures.I have been looking at aluminum "project boxes" on Ebay an am wondering if a similar system or if "standard" enclosure sizes exist.Examples:http://www.ebay.com/itm/Extruded-Aluminum-Box-Black-Enclosure-Electronic-Project-Case-PCB-DIY-50-25-25mm-/321803082516?hash=item4aecf55b14http://www.ebay.com/itm/35x76x100mm-Aluminum-Project-Box-Enclosure-Case-Electronic-DIY-Instrument-Case-/121654694181?hash=item1c532f5125http://www.ebay.com/itm/Aluminum-enclosure-box-Power-battery-shell-Chassis-shell-desktop-DIY-64-38-100mm-/281526862207?hash=item418c4f017fhttp://www.ebay.com/itm/Silver-Aluminum-Project-Box-Enclosure-Case-Electronic-DIY-203x144x68mm-US-Stock-/111599975005?hash=item19fbe07a5dI am not looking at any of these enclosures in particular, I have just noticed MANY different models available with no "standardized" reference (well...nothing obvious to me). Is there a standard? I have quite a few projects I would like to build into these types of enclosures, and wouldnt want to have the supply run out once the Ebay seller dries up!Thanks!

author: ivaylo
author_rank: Frequent Contributor
timestamp: October 04, 2015, 06:50:35 am
content: Don't think those Chinese ones follow any standard. Some companies have been doing some enclosures forever, so they became de facto "standard" -http://www.hammondmfg.com/scpg.htm. Then there are things like the DIN standard cards which dictate enclosure sizeshttps://en.m.wikipedia.org/wiki/Eurocard_(printed_circuit_board)

author: iampoor
author_rank: Frequent Contributor
timestamp: October 04, 2015, 09:27:00 pm
content: Quote from: ivaylo on October 04, 2015, 06:50:35 amThanks for the links. Yes Hammond enclosures seem to be copied pretty heavilyI was hoping they might confrorm to something like the 1455 standard, but yeah, it appears to be pretty random!

author: ez24
author_rank: Super Contributor
timestamp: October 04, 2015, 09:29:56 pm
content: Interesting. Any info on cutting the holes and openings?

author: iampoor
author_rank: Frequent Contributor
timestamp: October 05, 2015, 08:06:54 am
content: Quote from: evb149 on October 04, 2015, 09:38:34 pmNot sure if its the same for all of their enclosures, but Hammond minimum is 25pcs IIRC.Front Panel Express is another great company that does front panels. I love them!