hybridfree/eevblog-posts huggingface dataset:
A Cool Bit of History - Page 1
Forum section: electronics / general

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: September 18, 2014, 01:34:22 pm
content: After going through a box of surplus from an estate sale I recently acquired, I found these little nuggets. I can't be sure what processor this is but these look like manufacturers demo pieces. There are two 40 pin IC's with the no caps and a single unused, un-soldered cap. No markings except for what looks like pencil indicating 1/0. Nevertheless, a very cool bit of history that I am guessing (Could be wrong), late 70's to early 80's. I will put these under the high power microscope a little later and get some close-up imagery.

author: PA0PBZ
author_rank: Super Contributor
timestamp: September 18, 2014, 01:40:14 pm
content: Interesting holes also, I wonder if you are supposed to screw the chip down on the board...

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: September 18, 2014, 08:56:47 pm
content: The X-Banded 40 pin chip is a Mostek MK6010. This was launched in 1971 and was sold to Busicom as a one-chip solution for their new line of LE-120A calculators. The chip was powered by -12V and -25V to ground. Attached are some microscopy images down to the die level. I have yet to identify the other, will do so later today if I have time. I have the high resolution images I can post to a download service if anyone is interested.Microscopy images:https://flic.kr/s/aHsk3KfvysMore Info can be found here:http://computermuseum.informatik.uni-stuttgart.de/dev_en/bsicm_120/mk6010.htmlorhttp://en.wikipedia.org/wiki/Mostek

author: rexxar
author_rank: Frequent Contributor
timestamp: September 18, 2014, 09:19:04 pm
content: You can't just post porn like that, there's children here!Great stuff!

author: Yago
author_rank: Frequent Contributor
timestamp: September 18, 2014, 09:53:22 pm
content: Interesting indeed, thanks Terabyte
3d Printed car! - Page 1
Forum section: electronics / general

author: Falcon69
author_rank: Super Contributor
timestamp: September 17, 2014, 07:49:55 am
content: Just saw on the news last night.printed using a 3d Printer in Chicago, Illinois.Company in Phoenix, Arizona calls the car "the Strati"Took 45 hours to print it and build it.It's a full electric, 2-seater car.Company plans to sell it starting at $18,000.Very cool. I can't wait for these printers to have better resolution. Could you imagine, printing your own shell of a Lamborghini or something, then assembling it with factory bought parts? (ya, i know, prolly more expensive then the car itself doing that.)But, that does open doors. Imagine a standard chassis with the running gear and electrics that you can buy. Then designing your own Shell and printing it out on your own giant 3D Printer.Here's the linkhttp://news.yahoo.com/3d-printed-car-140141613.htmlI wonder what happens to that car in a simple low speed fender bender.

author: george graves
author_rank: Super Contributor
timestamp: September 17, 2014, 08:38:49 am
content: Only looking at power input/to/finish product radio......I have to ask, what costs more?: A Cartesian robot running for 2-3 day to make a car frame VS a traditionally metal stamped car vs a tesla CF and FG mold kind of thing.My guess is that 3d printer was using more energy and raw materials cost.

author: Rerouter
author_rank: Super Contributor
timestamp: September 17, 2014, 09:24:18 am
content: When compared to a normal car one power intensive step is removed which is taking the refined metal and forming it into the body pieces, which with metals higher melting point may make it use similar or a touch less power as far as the frame goesIf you want to attack how "green" it is, then i would imagine melting plastic releases many more horrible fumes over its mining, refining, life, but i could be wrong,

author: Shock
author_rank: Super Contributor
timestamp: September 17, 2014, 10:17:01 am
content: Finally a better alternative to carbon fiber for informed consumers!
Using Magnetism to Remove Pathogens From Blood  - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: September 15, 2014, 08:58:14 pm
content: This is so freaking cool a device that removes blood pathogens such as virus bacteria and fungi from blood with magnetism.

author: mtdoc
author_rank: Super Contributor
timestamp: September 15, 2014, 10:01:38 pm
content: Nice Video. But where's the link to their Kickstarter page ?....Seriously though... Sounds like a good idea but unless/until they've done clinical trials in humans can't say it will work in the real world. Or, if it does work that it won't have serious side effects. Many of these kind of ideas fail when subjected to complexities of the human body.

author: janoc
author_rank: Super Contributor
timestamp: September 15, 2014, 10:33:58 pm
content: Well, it is from Harvard, these guys are the real deal:http://wyss.harvard.edu/Whether or not their idea will work in clinical tests is another thing, but I think they would know how to conduct themThe video is a press-release for the "unwashed masses", that's why the "Kickstarter-like" tone (it is on the above-linked page too).

author: babysitter
author_rank: Frequent Contributor
timestamp: September 16, 2014, 08:02:05 pm
content: You missed world sepsis awareness day just by a short time...but although it might be considered a nice idea and better detection and treatment for sepsis is really reqired (many deaths, but often only marked as "He/she died on the consequences of $DISEASE") it has this "decades until fit for humans" smell.

author: PedroDaGr8
author_rank: Super Contributor
timestamp: September 16, 2014, 08:11:05 pm
content: The technology here is actually pretty well developed and one I've done some work in (developing MNP conjugates). There are a variety of companies that make coated magnetic particles for cellular separation (StemCell, Life Tech, eBioscience, etc.) . The only novelty is in the application. These particles are often used in cellular enrichment and purification on batch scale samples in order to isolate small sub-populations.Sent from my LGLS990 using Tapatalk
PDFsam. PDF split and merge. I found it useful when scanning documents.  - Page 1
Forum section: electronics / general

author: wilfred
author_rank: Super Contributor
timestamp: September 16, 2014, 12:19:22 am
content: /.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 16, 2014, 06:03:15 am
content: Cool!On the few occasions I have to do that (not often, since I don't do a lot of document handling), I pick out the pages with pdfLaTeX. Tedious, but it's the only thing I have that's native PDF.Tim

author: Warhawk
author_rank: Frequent Contributor
timestamp: September 16, 2014, 08:20:04 am
content: +1I also use PDFsam from time to time and have only a good experience with it.

author: Balaur
author_rank: Unknown
timestamp: September 16, 2014, 10:27:18 am
content: I'm usually relying on command-line Linux tools such as pdftk, poppler-utils and convert. After some learning curve, they are OK and rather straightforward to use.
Engineering Videos online - Page 1
Forum section: electronics / general

author: rbola35618
author_rank: Frequent Contributor
timestamp: April 27, 2012, 01:15:22 pm
content: Since I am doing the MIT x6 online course. I wanted to let you all know that there is an extensive series of Electrical, Mechanical and Civil and other classes form NPTEL or ITT (which is the Indian Institute of Technologies). These videos are outstanding and I am very surprised that there are that many classes online. You don't get any credit or certificate but if there is a subject that you want to learn about in engineering, there is a good chance ITT will have itLink ishttps://www.youtube.com/user/nptelhrd/videos?view=1Alsohttp://nptel.iitm.ac.in/Hope you find this usefull.

author: TerminalJack505
author_rank: Super Contributor
timestamp: April 27, 2012, 07:44:03 pm
content: I highly recommend these course as well. Kudos to IIT for making them available.For some people the Indian accent can be a bit hard to understand at first. If this is the case then I suggest you browse the videos and find an instructor with an accent you can tolerate and start there. It won't be long before you can understand all of the instructors.

author: bruno
author_rank: Newbie
timestamp: September 16, 2014, 06:22:21 am
content: Yes, very hard, but it is even harder to understand japonese speaking English.I will have a look at it..thanks for sharing.
Andrew Kay, inventor of the DVM, died - Page 1
Forum section: electronics / general

author: GeoffS
author_rank: Unknown
timestamp: September 06, 2014, 02:56:29 pm
content: Andrew Kay inventor of the digital voltmeter, has died.http://www.utsandiego.com/news/2014/sep/03/andrew-kay-mit-kaypro-computers-pioneer/Perhaps better known in some circles as the founder of Kaypro computers

author: saturation
author_rank: Super Contributor
timestamp: September 07, 2014, 12:32:22 pm
content: A great man. RIPAlso on eevblog posted elsewhere related to the Fluke DMM:http://www.pa.msu.edu/~edmunds/DVM_HP_3440a/digital_volt_meter_history.txtand from Fluke:http://www.fluke.com/fluke/uses/comunidad/fluke-news-plus/articlecategories/rd/a+little+history.htm

author: dannyf
author_rank: Super Contributor
timestamp: September 07, 2014, 02:17:21 pm
content: QuoteWow! It would be lovely to hear those clicking sound,

author: zapta
author_rank: Super Contributor
timestamp: September 08, 2014, 12:36:50 am
content: Did he also invented the ADC (since a DVM is an ADC)?

author: PedroDaGr8
author_rank: Super Contributor
timestamp: September 08, 2014, 03:19:03 am
content: Quote from: zapta on September 08, 2014, 12:36:50 amAccording to Analog Devices, its hard to establish who invented the ADC:http://www.analog.com/library/analogdialogue/archives/39-06/chapter%201%20data%20converter%20history%20f.pdfDepending on how you define it, it can go back to the 18th century.

author: coppice
author_rank: Super Contributor
timestamp: September 08, 2014, 08:57:13 am
content: The Kaypro II was quite innovative when it came out, and sold really well for a while. Kay didn't produce a follow on in a timely manner, though, and the business collapsed.

author: SgtRock
author_rank: Unknown
timestamp: September 16, 2014, 05:07:30 am
content: Greetings EEVBees:--See below article from the Washington Post, about Kay and Kaypro. Interesting! Wiki link also included.http://www.washingtonpost.com/business/technology/andrew-kay-inventor-who-developed-the-kaypro-ii-compact-computer-dies-at-95/2014/09/14/425604fc-3b5e-11e4-bdfb-de4104544a37_story.htmlhttp://en.wikipedia.org/wiki/Andrew_Kay"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'Isaac Asimov 1920 - 1992Best RegardsClear Ether
Photomask question - PCB or silicon? - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: September 15, 2014, 04:52:10 pm
content: Hi guys,Are these photomasks really for a PCB?http://www.ebay.com/itm/VINTAGE-CRAY-COMPUTER-CORP-SUPERCOMPUTER-PCB-TECHNOLOGY-PHOTOMASK-SET-/231330830833?pt=US_Vintage_Computing_Parts_Accessories&hash=item35dc6459f1The item is labeled as such, but the patterns seem to be chip-ish - at least to my untrained eye. Which is true? Either way, a beautiful itemThanks,David
the future of applent? - Page 1
Forum section: electronics / general

author: SArepairman
author_rank: Frequent Contributor
timestamp: September 14, 2014, 06:33:51 pm
content: keylight technologies? keyfight technologies?

author: miguelvp
author_rank: Super Contributor
timestamp: September 14, 2014, 07:10:36 pm
content: Keylime?

author: Uup
author_rank: Regular Contributor
timestamp: September 14, 2014, 09:55:29 pm
content: Keepsight, Keensight?
circuit board repairing schools  - Page 1
Forum section: electronics / general

author: angelos.kyriakou
author_rank: Newbie
timestamp: September 14, 2014, 08:00:07 am
content: hi alli am from Cyprus i graduated few years ago from university in Cyprus as electrical & electronics engineer but they didn't teach as any practical tech-nicks. i would like to ask if there is any good school for practical skills on circuit boards like find the fault on circuit board, soldering desoldering

author: Dave
author_rank: Super Contributor
timestamp: September 14, 2014, 08:05:04 am
content: Your best bet would be to find some faulty circuits and just try poking around yourself. Nothing beats practical experience when it comes to fixing broken electronics.

author: HP-ILnerd
author_rank: Frequent Contributor
timestamp: September 14, 2014, 09:35:52 am
content: Give this series from Pace a try. There are 8 parts, and go into pretty fine detail.

author: tggzzz
author_rank: Super Contributor
timestamp: September 14, 2014, 10:10:07 am
content: Quote from: angelos.kyriakou on September 14, 2014, 08:00:07 amhttp://www.circuitrework.com/guides/guides.shtmlfor reworking

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: September 14, 2014, 10:12:13 am
content: There are companies that provide training for industry, but likely to be at industry prices - look for "IPC training"Might be worth it if you are looking for jobs in industry.
H. W. Sullivan, Manganin Decade resistor box - Page 1
Forum section: electronics / general

author: SSragtop
author_rank: Newbie
timestamp: September 12, 2014, 07:43:09 pm
content: I have had this Manganin Decade box for nearly 40 years. I bought it at a High School liquidation auction in the Seattle District. It was made by the HW Sullivan LTD of London. It is made of brass, wood and crystal. It's knobs are of plastic or bakelite. See picture. Other than this, I don't know anything else about it. I searched the internet for anyone who may have anything like it. I found nothing except the blog here, where "Krivx" has a newer metal version of it. An interesting listing, I might add.Anyone who has any info on this please let me know.Thanks,

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 12, 2014, 09:47:35 pm
content: Looks pretty freakin' fancy!Not much to know about it I'm guessing; a decade box is a decade box, no matter what decade it's from. If the binding posts aren't labeled, it should be easy enough to figure out what connects to what inside.Purpose is extremely precise attenuation or resistance ratios, usually at DC. Way back in the day, you might've used one with a galvanometer and Weston cell to calibrate a secondary voltage standard; these days, ADCs perform similar feats using precision time ratios rather than resistance ratios.Tim

author: SSragtop
author_rank: Newbie
timestamp: September 13, 2014, 12:35:26 am
content: Thanks for the info. I knew some of that. Hahaha. I am guessing that this particular model (No. 512) was made and used for lab projects intended for schools only. Thus the fancy wood and crystal. But I am not sure. Mainly looking for anyone who has one, or knows where one is like it. Do you know anyone who has anything like it?The labels above the three posts read the usual for decade boxes, G1 T1, T2, G2, and between the four post below read 10,000, 30,000, and 60,000. I know the lower posts are fixed resistances, and the upper ones are the variables. Together, this baby can come up with any resistance from 1 - 100,000 ohms. Pretty cool. But who has one? I couldn't even find one in the electronics Museums around the world. I may have missed one though. Does anyone even know the meaning of the word "Manganin"?Thanks again for the info.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 13, 2014, 01:12:33 am
content: Don't know anything specific, no. Might *have* to take it to the museum to find an answer to that, dunno...Manganin is an alloy with particularly low TC around room temperature, so presumably, it's better than one built with nichrome, constantan, etc.Tim

author: SSragtop
author_rank: Newbie
timestamp: September 13, 2014, 03:12:46 pm
content: Yeah, I guess Constantan has much less corrosion properties with 45% nickel, but sacrifices conductivity. I guess that's why the only use it in AC circuits. But we digress.Thanks for the incite. Hopefully I can find where these all went too.Rick
[NEW CODE]10% off (most) Farnell orders (discount code, today only!) - Page 1
Forum section: electronics / general

author: microbug
author_rank: Frequent Contributor
timestamp: September 18, 2014, 03:27:24 pm
content: I got this discount code from Farnell by email for a 10% discount on my order:FESE10F2SE10. It is valid for any order size. 'Excludes Software, Dev. Kits, Test and Measurement and Raspberry Pi Products and not in conjunction with any other discount or offer'. Expires 18/09/2014 at 23:59 GMT!

author: grumpydoc
author_rank: Super Contributor
timestamp: September 18, 2014, 03:41:16 pm
content: Me too, but I don't need to order anything today

author: Dave
author_rank: Super Contributor
timestamp: September 18, 2014, 08:53:46 pm
content: I just happened to have a cart full of components, waiting to be ordered.You just saved me 12.45€. Thanks!

author: microbug
author_rank: Frequent Contributor
timestamp: September 18, 2014, 08:58:51 pm
content: You're welcome! €12.45*10... that's a lot more than the £2.50 I saved!@grumpydoc - I find I can usually find enough stuff to order to get over the £20 minimum for free postage.

author: grumpydoc
author_rank: Super Contributor
timestamp: September 18, 2014, 09:14:00 pm
content: QuoteI don't generally have a problem with that, though I do have quite a few items that were bought to fill the order which are still lying around unused.It's just that I don't wantanythingat the moment and 10% isn't enough for me to randomly order stuff that I might use.Now, if they made it 25%........

author: microbug
author_rank: Frequent Contributor
timestamp: September 24, 2014, 04:14:56 pm
content: I got a new code today by email (same terms and conditions as last time) -F2SE10. Enjoy!
Use a washer to make an angle grinder disc fit? - Page 1
Forum section: electronics / general

author: XOIIO
author_rank: Super Contributor
timestamp: September 11, 2014, 07:28:54 pm
content: Hey all, got a cutting disc for my angle grinder, however it is too think by a little bit, I figured they would be universal but I guess not.Anyways, most of the ones I saw were that thin and the place I bought it is fairly far away, so I was thinking maybe a washer would work to hold it down? I suppose there is more risk of it slipping, but I figure for the somewhat light work I'd be doing it might work well enough

author: SeanB
author_rank: Super Contributor
timestamp: September 11, 2014, 07:31:23 pm
content: Flip the locking nut around and it will grip properly. The nut has a lip on one side for the thick disks and the back side has a recess for the thin ones.

author: Biff383
author_rank: Regular Contributor
timestamp: September 11, 2014, 07:32:06 pm
content: Should be OK did you try flipping the retaining nut over?

author: Monkeh
author_rank: Super Contributor
timestamp: September 11, 2014, 07:32:39 pm
content: Quote from: XOIIO on September 11, 2014, 07:28:54 pmThe nut or filler washer should be reversible to deal with different size discs.

author: XOIIO
author_rank: Super Contributor
timestamp: September 11, 2014, 07:46:04 pm
content: Ah, didn't know it was reversible, works great lol, thanks guys.

author: calexanian
author_rank: Super Contributor
timestamp: September 12, 2014, 04:39:58 am
content: The retaining nut is two sided. One for thin cutoff discs, and the other has a thicker collar for grinding disks.. Danger if you get it backwards...
Iron Man Dave! (More like copper clad really I guess...) - Page 1
Forum section: electronics / general

author: Zad
author_rank: Super Contributor
timestamp: September 11, 2014, 12:04:15 am
content: Those of you who follow Dave's Twitter and second YouTube channel will probably know that he loves keeping fit in general, and has taken part in various Triathlon and Iron-Man-like events which involve tackling assault courses, mud and other fairly extreme sporty things which remind me that I'm not 21 any more. Fortunately, Dave is fit and the right shape to carry off lycra, so how about wearing these for the colder weather (I guess that's anything under 24C). Yes, they are designed to fit men.http://www.zara.com/uk/en/sale/man/collection/disco-leggings-c472501p1935039.htmlTO-18 transistors, electrolytic caps, speakers, VU meters...

author: sunnyhighway
author_rank: Frequent Contributor
timestamp: September 11, 2014, 08:43:05 am
content: That's indeed a nice print.BUT:When to wear:QuoteWhat to wear:Quote

author: KJDS
author_rank: Super Contributor
timestamp: September 11, 2014, 09:04:43 am
content: Further proof that British Man has no idea of dress sense.

author: steve30
author_rank: Frequent Contributor
timestamp: September 11, 2014, 02:58:52 pm
content: Complete with gold transistors!I like it

author: Zad
author_rank: Super Contributor
timestamp: September 11, 2014, 05:10:14 pm
content: Quote from: KJDS on September 11, 2014, 09:04:43 amTo be fair, they are in the sale for £8 because nobody has bought any

author: RobertoLG
author_rank: Frequent Contributor
timestamp: September 11, 2014, 05:40:55 pm
content: you forgot the shoesa pair of these hehehe

author: Yago
author_rank: Frequent Contributor
timestamp: September 11, 2014, 06:33:42 pm
content: Did they plate through the backside? :p

author: sunnyhighway
author_rank: Frequent Contributor
timestamp: September 12, 2014, 11:02:45 am
content: Quote from: RobertoLG on September 11, 2014, 05:40:55 pmAnd don't forget the complementary latex socks.
Hey Greybeards! - (and those who don't have beards but have grey...) - Page 1
Forum section: electronics / general

author: Rory
author_rank: Frequent Contributor
timestamp: September 11, 2014, 04:14:33 pm
content: Who remembers Carl & Jerry?Watching Dinosaur Den, Bil might, but I don't think Fran would.This will really date you, unless you are a collector of old magazines.And maybe Larsen E. Rapp; but he popped up occasionally in recent decades.

author: Towger
author_rank: Super Contributor
timestamp: September 11, 2014, 04:43:27 pm
content: Does Skippy the Bush kangaroo count?

author: Rory
author_rank: Frequent Contributor
timestamp: September 11, 2014, 05:49:33 pm
content: Quote from: Towger on September 11, 2014, 04:43:27 pmNaw, unless in one episode Skippy was able to carry urgently needed spare wireless parts to an outback station in her pouch. I don't ever recall that ever happening...
Motorola MC micro - Page 1
Forum section: electronics / general

author: abdullahseba
author_rank: Frequent Contributor
timestamp: September 11, 2014, 01:16:21 pm
content: Dose any one know how to operate a Motorola MC micro?I have 2 but all it does is flashing a red light & show two pointers on the LCD.I want to have them talking to each other.
New type of quad copter design - Page 1
Forum section: electronics / general

author: Kempy
author_rank: Contributor
timestamp: September 10, 2014, 09:30:37 pm
content: Just saw this and had to sharehttp://www.bbc.co.uk/newsbeat/29140059

author: briandorey
author_rank: Regular Contributor
timestamp: September 10, 2014, 09:38:32 pm
content: Watching the show at the moment, my dogs would love the flying cat one

author: johnnyfp
author_rank: Frequent Contributor
timestamp: September 10, 2014, 09:56:35 pm
content: The rat must have a hangover. It's all over the place!

author: Galenbo
author_rank: Super Contributor
timestamp: September 11, 2014, 11:00:57 am
content: Kind of creepy, not only the dead rat itself, maybe also the mind of that boy :-)In Version2, he can attach a gun that fires dead spiders.

author: bktemp
author_rank: Super Contributor
timestamp: September 11, 2014, 12:20:08 pm
content: The idea is old:http://www.popsci.com/technology/article/2012-06/video-dutch-artist-turns-his-dead-cat-flying-quadcopter
RC air swimmers, cool ! - Page 1
Forum section: electronics / general

author: DavidDLC
author_rank: Frequent Contributor
timestamp: September 09, 2014, 09:33:51 pm
content: It was posted in 2011, I just saw them pretty cool in my opinion !David.

author: Melt-O-Tronic
author_rank: Frequent Contributor
timestamp: September 11, 2014, 07:12:52 am
content: My brother has the shark one. It would be a hoot in a big house!
EEVbloggie meeting at UKW-Tagung Weinheim ham fest? - Page 1
Forum section: electronics / general

author: babysitter
author_rank: Frequent Contributor
timestamp: August 28, 2014, 11:53:45 am
content: Hi everyone,on September 12th to September 14th I will go to the "Weinheimer UKW-Tagung" as usual (about halfway between Frankfurt an Mannheim) with my family.How about a meeting of forum members there, either somewhere at the flea market on Saturday or at the club house ?Hendrik,attacking Weinheim for this reason since 1996

author: German_EE
author_rank: Super Contributor
timestamp: August 28, 2014, 02:21:22 pm
content: It is doubtful that I will make it on the Friday (girlfriend's birthday) but I certainly plan to be there on the Saturday and maybe Sunday.I will probably be providing transport for some other members of the Darmstadt Radio Club.

author: babysitter
author_rank: Frequent Contributor
timestamp: August 29, 2014, 07:49:05 am
content: So just bargaining at the fleamarket and maybe some drinking and bbq at saturday evening for you?Me, my also-licensed wife and the still not licensed kids will arrive on friday , but we are still hotel-bound at night with the little OM. The big YL might be fit for camping alread at 2.

author: Andreas
author_rank: Super Contributor
timestamp: September 04, 2014, 08:18:33 pm
content: Hello Hendrik,I also plan to be at the flea market on Saturday.Nice to see you again.When will you be there?Is your mobile phone number still the same?With best regardsAndreas

author: babysitter
author_rank: Frequent Contributor
timestamp: September 05, 2014, 06:55:34 am
content: Yes, still the same number - take care, its back to Weinheim again for all events, and no longer at KKS !

author: babysitter
author_rank: Frequent Contributor
timestamp: September 11, 2014, 07:59:52 pm
content: So... this year I will go to Weinheim without my wife and kids (but picking them up on sunday)... tomorrow I grab my bag and get on the train.Kann losgehen !
Electronics work expereince near Sydney - Page 1
Forum section: electronics / general

author: JCRF
author_rank: Newbie
timestamp: September 14, 2014, 02:51:43 am
content: I am a currently studying electrical engineering. I am looking for a company to do 12 weeks work experience with, preferably located near Sydney. I am primarily interested in RF electronics, as well as high speed digital electronics.Does anyone have any suggestions on companies I could approach?Thanks,JCRF.
Fawlty suppliers - Page 1
Forum section: electronics / general

author: Prizmatic
author_rank: Regular Contributor
timestamp: September 05, 2014, 03:55:39 pm
content: After being double-charged by a major supplier, I'm feeling somewhat grumpy. Dealing with what was an obvious system error (to everyone except them) was akin to performing alchemy. Near impossible and unprofitable. The experience was surreal and had the makings of a Basil Fawlty sketch.The short version: It took 2 calls to them, 2 to the bank, 3 emails, screenshots and 3 hours of my time to resolve a blatant sales error. But that is not my main gripe. After they'd rediscovered the abacus and sorted the problem, nobody at any point said 'sorry'.. Is it a case of 'deny liability at all cost', or do sales staff really not give a hoot anymore?

author: abaxas
author_rank: Regular Contributor
timestamp: September 08, 2014, 08:02:40 am
content: Go on... name and shame!

author: tggzzz
author_rank: Super Contributor
timestamp: September 08, 2014, 09:37:27 am
content: Quote from: Prizmatic on September 05, 2014, 03:55:39 pmThat's merely a whine or whinge. Are you going to add anything to make it worth our while reading it?

author: free_electron
author_rank: Super Contributor
timestamp: September 08, 2014, 07:15:54 pm
content: Fawlty suppliers ? look at the episode 'the builders'

author: calexanian
author_rank: Super Contributor
timestamp: September 09, 2014, 03:45:24 am
content: To be honest this is why I keep my business with digi key, or smaller specialty firms who know my name. I pay a bit more, but they are more interested in keeping me happy than deny responsibility. Even when its my fault I typically get taken care of, even on small orders. I have had Mouser screw things up quite a bit. Things like they have the the wrong package part in the wrong bin and keep sending me the wrong parts because the computer says its the right thing. Digi key has human conformation on everything. Typically at smaller firms things are done by hand too so mistakes are caught far more often that perpetuated, and propagated by computer sorting systems. Thats my experience in well over 15 of ordering parts.

author: Stonent
author_rank: Super Contributor
timestamp: September 09, 2014, 03:47:11 am
content: Quote from: free_electron on September 08, 2014, 07:15:54 pmIf you are not over here within the hour I will insert a large garden gnome into you, good day!
Ray Tracing Jell-O Paper - Page 1
Forum section: electronics / general

author: Dongulus
author_rank: Regular Contributor
timestamp: September 08, 2014, 05:10:19 pm
content: I had a few laughs at this today and I thought others might enjoy too. It's a paper published by some engineers at Pixar in 1988 about the advancement in rendering a "restricted class of dessert foods".http://www.ecse.rpi.edu/~wrf/wiki/ComputerGraphicsFall2009/heckbert-rls-jello.pdf
Silicon wafer - Page 1
Forum section: electronics / general

author: Sbampato12
author_rank: Regular Contributor
timestamp: September 02, 2014, 11:44:40 am
content: Hello everyone.I've made some videos of a silicon wafer that I bought some time ago. As I've never worked with videos (media in general), I think that I may get some time to try to edit these minutes of video.But for now I've decided to upload the content to youtube, and then, when I get the edited version, with some comentaries, I will upload too.If anyone would see then, these are the links:Any questions are welcome!

author: marshallh
author_rank: Unknown
timestamp: September 04, 2014, 10:21:03 pm
content: California Micro Devices, looks like an 8-bit CPU, bus extender, PIO chip or related. They made 6502 and accessories, so it's a possibility.Package could be 40/44pin DIP or PLCC.

author: Sbampato12
author_rank: Regular Contributor
timestamp: September 08, 2014, 11:17:25 am
content: This die has 40 pins, or at least has the 'pads' to solder wires.Thank you by the informations!I will look this integrated circuit....
Cypress PSoC 4200 - Page 1
Forum section: electronics / general

author: Mike Warren
author_rank: Unknown
timestamp: September 05, 2014, 04:13:55 am
content: Does anyone know if final prices have been quoted by Cypress for the 4200 series chips when the introductory $1 offer finishes?I'm interested in learning them, but whether I do or not will be dependent of the final cost when I to start using them in products.

author: kizzap
author_rank: Unknown
timestamp: September 05, 2014, 07:50:41 am
content: Well if their website is anything to go by, I would be assuming they would be around the $2.50 mark:http://www.cypress.com/?id=2218

author: miguelvp
author_rank: Super Contributor
timestamp: September 05, 2014, 08:15:58 am
content: Also for what I've heard around in this forum, they prices are kind of negotiable, so you might be able to haggle a lot depending on quantities.So I guess you can contact them to see what kind of deal they can do for you if you choose them.

author: Mike Warren
author_rank: Unknown
timestamp: September 05, 2014, 08:44:44 am
content: Typically, my batch sizes are low (100 or less), so I don't generally have much haggle power.But I do tend to use the chips I'm most familiar with for new projects.

author: Mike Warren
author_rank: Unknown
timestamp: September 05, 2014, 08:45:21 am
content: Quote from: kizzap on September 05, 2014, 07:50:41 amThanks. I'd missed that.

author: miguelvp
author_rank: Super Contributor
timestamp: September 05, 2014, 08:55:25 am
content: Quote from: Mike Warren on September 05, 2014, 08:44:44 amIf you do get them I was able to use their Pioneer kit ($25) to program themhttps://www.eevblog.com/forum/microcontrollers/help!-what-mcu-(greater-than-8-bits-of-smarts)-is-easiest-to-graduate-to/msg507751/#msg507751The downside of the PSoCs is that since they are very configurable the components you use eat a lot of resources in support code. Something to keep in mind.Edited to fix the link

author: nctnico
author_rank: Super Contributor
timestamp: September 05, 2014, 11:05:06 pm
content: Quote from: Mike Warren on September 05, 2014, 08:44:44 amFor these low volumes the engineering costs are way more higher than the parts cost. I wouldn't focus too much on the cost of a part.

author: Corporate666
author_rank: Unknown
timestamp: September 06, 2014, 02:44:37 am
content: Quote from: Mike Warren on September 05, 2014, 08:44:44 amI have very little haggle power. A high volume product for me would be 10,000 units a year, and most stuff I am more like 1,000 units/year.It all comes down to your sales contact. My guy is great... Cypress has generally been big in huge volume stuff (IIRC they did the capsense in much of the original Apple stuff like the iPod/iPad). They are trying to establish themselves amongst the smaller guys, so they are very amenable to working with those small guys like you or I.If there is a legit competitor you are shopping against, I am pretty sure Cypress will price match. They always have for me - even if the competing chip is less than half the price.
Dads Day  - Page 1
Forum section: electronics / general

author: tautech
author_rank: Super Contributor
timestamp: September 06, 2014, 11:51:08 pm
content: It's Fathers Day here in NZ.Thoughts go to all dads that are hopefully spoiled and treated today.Further thoughts to those of us that have our kids scattered around this globe and will have contact with them today.Just 1 more of mine to "check in" from a different time zone.EditAll accounted for now.Have you too been spoilt?
Electronics/geeky stuff to see/buy in Vienna? - Page 1
Forum section: electronics / general

author: ivaylo
author_rank: Frequent Contributor
timestamp: September 02, 2014, 06:10:49 pm
content: Hi all,I'll be spending a day in Vienna, Austria in a few days and was wondering if people can recommend anything of interest to the average electronics aficionado there?Thank you...

author: mzzj
author_rank: Super Contributor
timestamp: September 02, 2014, 06:28:48 pm
content: Technisches Museum ?

author: tszaboo
author_rank: Super Contributor
timestamp: September 02, 2014, 11:04:21 pm
content: Vienna is one of the most beautiful city in europe. Go sight seeing, make a round with a landau and drink some proper european beer. There is also Saltzburg, München and Budapest, Bratislava, Brno few hours from there (just to mention a few)

author: ivaylo
author_rank: Frequent Contributor
timestamp: September 03, 2014, 10:38:23 pm
content: QuoteYup, been there many times. Wanted to ask this more specific question though.

author: German_EE
author_rank: Super Contributor
timestamp: September 04, 2014, 03:41:53 pm
content: Electronics stuff, no idea, but on Mariahilfer Straße there is an amazing tool shop. It's on the South side closer to the Museum Quarter rather than the station and well worth a visit.

author: Dave
author_rank: Super Contributor
timestamp: September 05, 2014, 01:09:19 pm
content: Don't forget to enjoy some proper Apfelstrudel while you are there.

author: ivaylo
author_rank: Frequent Contributor
timestamp: September 06, 2014, 01:57:19 am
content: QuoteMan, you just cost me a few hundred Euro on Wiha and Knipex stuff, glad wife wasn't with me on this tripThanks for the recommendation...

author: German_EE
author_rank: Super Contributor
timestamp: September 06, 2014, 08:24:21 am
content: No worries, I've been there half a dozen times and whilst the prices may make the heart skip a beat the range is amazing.
did the 'unread replies' feature go away? - Page 1
Forum section: electronics / general

author: linux-works
author_rank: Super Contributor
timestamp: September 06, 2014, 05:52:10 pm
content: I used that feature a lot. last 2 days, it has been gone.bug? or new website config?

author: IanB
author_rank: Super Contributor
timestamp: September 06, 2014, 06:02:12 pm
content: How do you mean, "gone?"Is it something other than theShow new replies to your postslink at the top of the page? I see no change to that feature.

author: gxti
author_rank: Frequent Contributor
timestamp: September 06, 2014, 06:23:55 pm
content: Click the arrow in the upper right of where it says "A Free & Open Forum For Electronics Enthusiasts & Professionals". It didn't happen to me, but I remember that being the solution from last time someone had this problem.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 06, 2014, 07:29:08 pm
content: Still here, though the last two days there were some database problems (at least from my point of view).Tim

author: linux-works
author_rank: Super Contributor
timestamp: September 06, 2014, 08:10:58 pm
content: ok, 2 things: the top arrow did help bring back the item that you could click on.however, one works and the other still does not work:'Show new replies to your posts.' is still broken. I have that bookmarked (direct link) and it still does not work. 'show unread replies' DOES work, though; but there is still one of those 2 links that does not work anymore. I get a 'gateway' error message when I try it.

author: Monkeh
author_rank: Super Contributor
timestamp: September 06, 2014, 08:33:11 pm
content: Quote from: linux-works on September 06, 2014, 08:10:58 pmIt works fine. Clear your cache.

author: linux-works
author_rank: Super Contributor
timestamp: September 07, 2014, 02:48:01 am
content: well, I'll be! yes, clearing cache worked. wowthanks!
Hot Bar Bonding thermode - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: September 04, 2014, 07:20:54 pm
content: Hot Bar Bonding is achieved by using a thermode or "Hot Bar" which is heated and cooled under pressure using either a pulsed heat or constant heat reflow soldering power supply, creating an electrical connection between the materials joined.Question:is a thermode the same if used a pulsed heat and constant heat? Or a thermode MUST be differerent for pulsed heat and constant heat?
MOVED: Alcatel-Lucent Belgium is hiring seasoned & experienced C/C++ programmers  - Page 1
Forum section: electronics / general

author: GeoffS
author_rank: Unknown
timestamp: September 04, 2014, 11:48:58 am
content: This topic has been moved toBuy/Sell/Wanted.https://www.eevblog.com/forum/index.php?topic=35970.0
Layout proofing -- bad idea? - Page 1
Forum section: electronics / general

author: SirNick
author_rank: Frequent Contributor
timestamp: September 04, 2014, 01:35:32 am
content: I just finished up a PCB design last weekend, and as part of my typical last-minute sanity check, I printed a B&W copy of the board at 1:1 scale and test-fit a representative sample of the BOM.Then I heard this flickering-buzzing sound, and realized there was a light-bulb over my head that was trying to illuminate: A laser printer works by imposing a charge on paper, which then attracts toner. In other words, I just put a bunch of SMD ICs on a sheet of paper that has been intentionally charged with static electricity.It occurred to me that this is probably not great practice, but I'm curious what the peanut gallery has to say -- because sometimes things that seem OK, aren't, and vice-versa. So, anyone else do this? Chip-killer or reasonably safe?

author: bobcat
author_rank: Regular Contributor
timestamp: September 04, 2014, 01:54:34 am
content: I usually check foot prints after designing a PC board. Setting the printed layout on a properly grounded static mat for 15 minutes will dissipate any remaining charge. Also just leaving the page on a table for an hour will dissipate the charge.

author: zapta
author_rank: Super Contributor
timestamp: September 04, 2014, 03:47:57 am
content: If you are concerned about ESD splay lightly with mist or use ESD safe paper.E.g.http://www.all-spec.com/products/112pt38.html

author: SeanB
author_rank: Super Contributor
timestamp: September 04, 2014, 04:49:48 am
content: Toner charge gets wiped out in the fuser pretty much in any case, and most laser printers have discharge paths so the paper does not stick internally to control the charge. The toner in any case is conductive from the carbon black in it. You would not have any charge remaining on the paper after 30 seconds in the open in any case, just from the moisture in the air being adsorbed onto the paper.

author: SirNick
author_rank: Frequent Contributor
timestamp: September 04, 2014, 06:59:32 pm
content: And that's why I ask stupid questions. Thanks guys -- excellent input.
is it possible to calibrate DS2004 High-Speed A/D Board ? - Page 1
Forum section: electronics / general

author: sameer65l
author_rank: Newbie
timestamp: September 03, 2014, 09:35:27 am
content: Hello everyonei am get confused about the term calibration and compensation?: can any one tell me how both are different from each other.Secondly, i would like to know is it possible to calibrateDS2004 High-Speed A/D Board? i do not find any pot which can compensate the offset error. in my case i need a high accuracy at the output. please help me...... waiting for your favorable reply...........
OT: Trying to find an old 2d multi character rpg game? - Page 1
Forum section: electronics / general

author: XOIIO
author_rank: Super Contributor
timestamp: September 02, 2014, 10:51:12 am
content: So, finally got a psp, hacked it, and loaded it with emulators and modifications/other useful programs, and now I am trying to remember an old game I played a bit at a friends place on a PC emulator.Don't recall much but it was a 2D, maybe 2.5d though I doubt it, pixelly multi charcter RPG, you first went around and chose the characters you wanted to make your team of three or four (think it was three) and in battle you were positioned on the left I think. It was fairly in depth. I'd love to get this on my PSP but I can't recall what it was. Maybe you guys have some ideas and can send me links with pictures of the battle screen and the inventory/magic menu? I'd probably recognize that.

author: PA0PBZ
author_rank: Super Contributor
timestamp: September 02, 2014, 11:07:59 am
content: Your description makes me think about Final Fantasy:https://www.google.com/search?q=psp+final+fantasy&tbm=isch

author: Yago
author_rank: Frequent Contributor
timestamp: September 02, 2014, 12:02:16 pm
content: Yes, FF7 was a huge hit on the Sony stuff.Great game, that Sephiroth was a cad!Just had a look and the version on the PSP was called "Crisis Core: Final Fantasy VII".
FBI Radio Teardown (Motorola Spectra) - Page 1
Forum section: electronics / general

author: Whales
author_rank: Super Contributor
timestamp: September 02, 2014, 02:31:20 am
content: Beautiful. Very beautiful.EDIT: HOW MANY WATTS??? Wow. I can see the cars stalling when they try to use the radio

author: BalticLab
author_rank: Regular Contributor
timestamp: September 02, 2014, 02:58:33 am
content: Quote from: Whales on September 02, 2014, 02:31:20 am110 Full WattsThere are several versions available but the feds (FBI, DEA, etc.) commonly use the "high power" versions in their cars. That's because their repeater network is not very dense. Often only covers the metro areas.

author: Vgkid
author_rank: Super Contributor
timestamp: September 02, 2014, 04:30:19 am
content: Thanks for the teardown, it looks to be early (guessing 13-19 ish week) 1999 datecode.

author: mswhin63
author_rank: Frequent Contributor
timestamp: September 02, 2014, 07:06:09 am
content: Hi KF5OBS, Would have been a nice video but had to switch off after the first 5 minutes was more a legal argument than a tear-down.Maybe next time start with something electronics.110W would than likely assuring transmission than lack of repeaters. It would be a bit backwards if an advance country like the US wouldn't have good overlap in repeaters in an area.Even in West Australia I serviced the police network on a couple of occasions 20 years ago and found they had good coverage even then. Even my main job with the railways had excellent coverage for the locations needed. We only used 25W transmitters too.

author: Whales
author_rank: Super Contributor
timestamp: September 02, 2014, 07:42:08 am
content: Quote from: mswhin63 on September 02, 2014, 07:06:09 amEven if you have disagreements with the narrator, it's worth skipping that segment to watch the rest of the teardown. I don't have an opinion on whether or not it should be legal to listen in, but I think if forces are moving towards encryption then very few people will complain.110W is a lot of transmission power compared to hand-held units. Perhaps they also have the cars setup as repeaters -> handheld?

author: mswhin63
author_rank: Frequent Contributor
timestamp: September 02, 2014, 09:54:16 am
content: Quote from: Whales on September 02, 2014, 07:42:08 amHighly likely, I see them used a lot in HF Radio like Barrett and Codan now.The rest is constructive criticism, Youtube seemed to have disabled the thumbnail image of the progress, at least on my browser so I could forward through to what appeared to be a tear-down, so I couldn't locate any area I could skip.I might watch the rest jumping through till I find it.