hybridfree/eevblog-posts huggingface dataset:
Did you return that video cassette/library book? - Page 1
Forum section: electronics / general

author: Kjetil
author_rank: Regular Contributor
timestamp: February 17, 2014, 09:19:43 pm
content: Be sure you did, at least in the USA:Woman jailed for not returning VHS of JLo movie 9 years agoHow are the laws where you guys live? I can't remember being arrested for delivering library books or videos late here..

author: nathanpc
author_rank: Unknown
timestamp: February 18, 2014, 01:58:11 am
content: I can't believe this is real.

author: AlfBaz
author_rank: Super Contributor
timestamp: February 18, 2014, 02:10:25 am
content: You shouldn't judge a book by it's cover but these blokes looked like they escaped from some sort of institution...http://www.pickenspd.org/officers

author: Maxlor
author_rank: Frequent Contributor
timestamp: February 18, 2014, 02:13:14 am
content: Quote from: AlfBaz on February 18, 2014, 02:10:25 amYou seem to think that the portrayals of certain personel in popular media are parodies or clicheed, when they're in fact accurate...

author: nihilism
author_rank: Regular Contributor
timestamp: February 18, 2014, 01:56:38 pm
content: Not sure, but i think a statute of limitations would apply in regards to this in Australia. Any lawyers out there?

author: dr.diesel
author_rank: Super Contributor
timestamp: February 18, 2014, 02:02:05 pm
content: This is actually a really good sign. Means that all of the rapists, murderers, child molesters and truly mean people have been caught, they can now concentrate on lesser crimes.

author: Wytnucls
author_rank: Super Contributor
timestamp: February 18, 2014, 02:13:50 pm
content: Well, if people didn't return the videos they rented, the rental business would fold pretty quickly. The rules were quite strict. Fines would be levied for late returns and proof of ID was required for membership. Those VHS movies were not cheap.If a warrant had been issued, the sheriff probably had no choice, but to enforce it. It sounds extreme, but that's the way a civil society works. In the end, it was resolved pretty quickly.

author: AlfBaz
author_rank: Super Contributor
timestamp: February 18, 2014, 02:22:43 pm
content: Quote from: Wytnucls on February 18, 2014, 02:13:50 pmUnfortunately I see no semblance of civility here

author: Wytnucls
author_rank: Super Contributor
timestamp: February 18, 2014, 03:15:29 pm
content: I agree. Not returning rented goods is pretty uncouth...

author: AlfBaz
author_rank: Super Contributor
timestamp: February 18, 2014, 03:22:18 pm
content: touché

author: SeanB
author_rank: Super Contributor
timestamp: February 18, 2014, 06:54:22 pm
content: Last couple of DVD's I got from Blockbusters were sell through copies, at the end of the rental period for them. the cost of the DVD was the same as renting.........
Identifying fake semiconductors 2.0 - Page 1
Forum section: electronics / general

author: jippie
author_rank: Unknown
timestamp: February 18, 2014, 08:31:43 pm
content: Nice post (and pictures) on Zeptobars about how FTDI managed to 'kill' fake chips.http://zeptobars.ru/en/read/FTDI-FT232RL-real-vs-fake-superealQuoteI guess the new driver caused a few headaches both for users and support staff. I guess one could always offer the old driver as a download?

author: amyk
author_rank: Super Contributor
timestamp: February 19, 2014, 03:30:06 pm
content: I'm almost willing to bet they're 8051-based.The real question is why a USB-to-serial adapter should even require a proprietary driver. Windows has one built in (usbser.sys) and my generic Android phone in bootloader mode can use it without installing anything else.

author: rastro
author_rank: Frequent Contributor
timestamp: February 19, 2014, 07:08:47 pm
content: Good article, thanks for posting it. I guess the good folks at FTDI have provided the end user a test to ID counterfeits - at least for one knockoff.I just wonder how many of these are lurking in our consumer products?

author: Tinkerer
author_rank: Frequent Contributor
timestamp: February 19, 2014, 11:09:45 pm
content: Quote from: rastro on February 19, 2014, 07:08:47 pmEven the military gets hit with counterfits.
Self-lacing 'Back to the Future' shoes will arrive in 2015 - Page 1
Forum section: electronics / general

author: nathanpc
author_rank: Unknown
timestamp: February 18, 2014, 02:00:25 am
content: Dave, this is heavy:http://www.theverge.com/2014/2/15/5414880/nike-designer-says-self-lacing-back-to-the-future-shoes-will-arriveNow let's just wait for the hoverboards.
Kickstarter site hacked - Page 1
Forum section: electronics / general

author: JoeyP
author_rank: Frequent Contributor
timestamp: February 17, 2014, 08:15:57 pm
content: Wonder if this effort was a crowd funded project:http://www.cnn.com/2014/02/15/us/kickstarter-site-hacked/

author: con-f-use
author_rank: Unknown
timestamp: February 17, 2014, 09:32:41 pm
content: Duplicate of:https://www.eevblog.com/forum/crowd-funded-projects/kickstarter-hacked/?topicseen
Old Transistors: Golden TO3 and very tiny ones - Page 1
Forum section: electronics / general

author: Stonent
author_rank: Super Contributor
timestamp: February 17, 2014, 03:09:49 am
content: I stopped by Tanner Electronics in the Dallas area this weekend to look for some NPNs for my radiation experiments and found some old interesting transistors.Here you see a golden 2N2305, I'm not sure what its composition is but it is "gold" on both sides and under the black paint and at least twice as heavy as the 2N4914 next to it.Also interesting are the I guess you'd call them low profile 2N3707 transistors. I've never seen them like that before and the interesting thing is the tops of the leads are exposed.Here's the whole of what I bought, most were old looking but no real visible dates. I'd be interested if anyone has some interesting info on any of these (outside of what the datasheets offer) such as applications.The store owner said he did a curve trace on the stubby 2N3707 transistors and said they had a very good gain.2 2N3117 @ $0.29 each2 2N2193 @ $0.39 each1 2N2305 (Goldie) $1.951 2N4914 $0.795 2N5305 @ $0.14 each5 2N5210 @ $0.14 each5 2N3707 (Stubbies) @ $0.14 each5 Mica insulators @ $0.03 each(Not pictured)1 LD1085P LDO Adj. Regulator $1.751 HD46508P-1 A/D converter (not a lot of info on it but it was fairly cheap) $1.951 Elenco resistor/inductor/capacitor chart (has wheels that spin) $0.99

author: Vgkid
author_rank: Super Contributor
timestamp: February 17, 2014, 03:48:25 am
content: Buy several of those HD's and toss them on ebay, make a profithttp://www.ebay.com/itm/1-PC-HD46508PA-1-Analog-Data-Acquisition-Unit-HD46508-/220548744152

author: nctnico
author_rank: Super Contributor
timestamp: February 17, 2014, 05:11:25 pm
content: Quote from: Vgkid on February 17, 2014, 03:48:25 amBad idea! Only 6 sold since 2010 and the last one nearly 2 years ago.
One smart crow - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: February 14, 2014, 10:08:23 am
content: This is said to be the first documented sequential tool use by any animal other than a human.There is more on if you Google it. From the BBC series "inside the Animal Mind."

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 14, 2014, 03:46:39 pm
content: I've known people who couldn't figure that out.More a testament to human stupidity than bird intelligence though, I reckon.

author: G7PSK
author_rank: Super Contributor
timestamp: February 14, 2014, 03:59:21 pm
content: I saw that program. They had crows that figured out the puzzles faster than children.

author: Marco
author_rank: Super Contributor
timestamp: February 14, 2014, 04:18:24 pm
content: Well the researcher is certainly a smart crow programmer, dunno how smart the crow is though.

author: Zero999
author_rank: Super Contributor
timestamp: February 16, 2014, 07:23:29 pm
content: Quote from: Marco on February 14, 2014, 04:18:24 pmI can understand your cynicism but crows have been known to do things like this.Here's another video showing how crows use cars and a pedestrian crossing to crack nuts.It's probably a New Caledonian crow - a species renowned for using tools.

author: mtdoc
author_rank: Super Contributor
timestamp: February 16, 2014, 08:20:35 pm
content: For more info onCorvusintelligence and other fun facts about these amazing birds, I highly recommend the bookMind of the Raven
Eagle dummy load wanted. - Page 1
Forum section: electronics / general

author: snipersquad100
author_rank: Frequent Contributor
timestamp: February 17, 2014, 08:59:05 pm
content: Hi, has any got a constant current dummy load schematic and board layout files for eagle who would be kind enoughto give me. thank you.

author: mcinque
author_rank: Unknown
timestamp: February 17, 2014, 10:33:41 pm
content: Enjoy!http://www.arachnidlabs.com/blog/2013/02/05/introducing-re-load/Files here ->https://github.com/arachnidlabs/reload

author: snipersquad100
author_rank: Frequent Contributor
timestamp: February 17, 2014, 10:43:49 pm
content: cheers mate. just what I needed.
How to confuse Electronics Dealer - Page 1
Forum section: electronics / general

author: kolbep
author_rank: Frequent Contributor
timestamp: February 15, 2014, 06:38:40 am
content: I found out how easy it is to confuse A1 Radio's Employees (They are a Components and Electronics dealer in Durban).Just rock up with your Almost 80 Year Old grandmother, and get some confused looks.Maybe they thought she had come in for some 'Vacuum Tubes' for the 'Wireless'.

author: SeanB
author_rank: Super Contributor
timestamp: February 15, 2014, 07:21:36 am
content: And there is Rhona on the phone texting away. Will have to send her this picture.......

author: firehopper
author_rank: Frequent Contributor
timestamp: February 15, 2014, 12:44:35 pm
content: looks like she's about to go to lunch though

author: nctnico
author_rank: Super Contributor
timestamp: February 15, 2014, 01:13:14 pm
content: Quote from: SeanB on February 15, 2014, 07:21:36 amOne of my hobbies is taking a photograph from my wife while she is texting. I have a whole bunch of them in various touristic places (the Colosseum in Rome for example).

author: M4trix
author_rank: Frequent Contributor
timestamp: February 15, 2014, 01:19:28 pm
content: ermm...cough.... who is that MILF on the left?

author: SeanB
author_rank: Super Contributor
timestamp: February 15, 2014, 01:42:22 pm
content: Peter's wife..... Come visit and I am sure we can find you somebody to date. might cost you 12 cows though.As the photo was taken at 5 minutes to closing Rhona is on the way out to go home. Trevor on the left is just looking confused.

author: M4trix
author_rank: Frequent Contributor
timestamp: February 15, 2014, 01:49:11 pm
content: Quote from: SeanB on February 15, 2014, 01:42:22 pmOops, I thought she's single. Some day I'll get in trouble because of my mouth.

author: SeanB
author_rank: Super Contributor
timestamp: February 15, 2014, 02:14:20 pm
content: Don't think Peter is the type to beat you to a pulp for "Kyk jy MY VROU!" though, another Kolbe I knew was there when the wife came out from her op recovery and asked me to feel up and see if there was any difference in feel or texture of certain bits, and lifted up to show them as well. Strange to do this with the husband encouraging and watching, though there the wife was the one who would have flattened anybody that took liberties, she was a fitness instructor as a second occupation. Could not feel or see any difference, she was very happy with that result.

author: nctnico
author_rank: Super Contributor
timestamp: February 15, 2014, 07:34:42 pm
content: Quote from: M4trix on February 15, 2014, 01:49:11 pmA bit more respect would suit you
Java Workbook? - Page 1
Forum section: electronics / general

author: vlad777
author_rank: Frequent Contributor
timestamp: February 15, 2014, 03:32:02 pm
content: I am off topic, please don't delete meI am interested in a Java workbook with simple problems that target Java specific features.I don't want to end up proving fundamental theorem of calculus in a problem and learn nothing about Java.I know how to program in C++ so I am not interested in explanations of a for loop.Want to learn things related to keywords: extends, implements, super , @Override ,interface ,final ....Many thanks.

author: vlad777
author_rank: Frequent Contributor
timestamp: February 15, 2014, 07:23:37 pm
content: Thanks!But learning what you said and getting some routine in using it is different.I would really like a good workbook.

author: zapta
author_rank: Super Contributor
timestamp: February 15, 2014, 11:41:41 pm
content: Search for 'java for C++ programmers'. This is a common transition so you will find plenty of resources. For example this onehttp://en.wikipedia.org/wiki/Comparison_of_Java_and_C%2B%2BFor more advanced Java I recommendhttp://www.amazon.com/Effective-Java-Edition-Joshua-Bloch/dp/0321356683

author: Rigby
author_rank: Super Contributor
timestamp: February 16, 2014, 03:23:27 am
content: Quote from: zapta on February 15, 2014, 11:41:41 pmOnce you get past the basic Java stuff like was asked for, that book is by far the most single useful Java book I've ever owned. Absolutely brilliant.
Hakko FX888D-23BY, USA version. Transformer/frequency issue? - Page 1
Forum section: electronics / general

author: bfi1714
author_rank: Newbie
timestamp: February 15, 2014, 11:46:33 am
content: Ok! I just made the mistake of buy aHakko FX888from USA and now I need to know if I can use a step down transformer (240VAC to 120 VAC) without any big issues? I'm really concerned about the frequency issue 60 HZ -> 50Hz. As this model as made for the american market where the f = 60 Hz and I'm living in Australia where the f = 50 Hz. Please, someone could help me??Thanks,bfiP.S.: Regarding the step down transformer I've foundthis modelthat is manufactured in Australia. However, it's expensive.
Qi Wireless Charging - Page 1
Forum section: electronics / general

author: -Gamah
author_rank: Newbie
timestamp: February 11, 2014, 02:34:45 am
content: Hi guys! Long time eevblog viewer/lurker, first time poster... I got this cheap hockey puck charger from amazon for $20 and it works great except for the annoying beep... I pried it open (to remove the speaker) and much to my surprise found a rather elaborate PCB for what I presumed would be some power components, and a coil... I found a data sheet (4shared link below) but I'm not too technical, can anyone explain to me the need for such complexity in laymans terms?From what I had expected it should have been similar to a prox card on the inside, just with power for the coil. Clicking the picture should get you the full 13MP version.Rest assured, I was able to identify and--ahem--neutralize the speaker, charging away happily now.http://www.4shared.com/web/preview/doc/ApMiFn2vce?

author: -Gamah
author_rank: Newbie
timestamp: February 13, 2014, 11:23:17 pm
content: Aw I hoped this would be more interesting.

author: dentaku
author_rank: Frequent Contributor
timestamp: February 13, 2014, 11:27:59 pm
content: There's actually an NE555 in thereI would be interesting to see if the Nokia Lumia Qi chargers are any different on the inside.

author: -Gamah
author_rank: Newbie
timestamp: February 14, 2014, 12:02:47 am
content: I've been contemplating having one delivered to the mailbag to see Dave probe around both the circuit and RF stuff going on... from what little I was able to decipher from the spec sheet it actually communicates with the phone/battery?

author: free_electron
author_rank: Super Contributor
timestamp: February 14, 2014, 01:12:43 am
content: Qi uses a bidirectional protocol across the magnetic link to figure out what the target needs.The early Qi implementations are all big and bulky and contain lots of parts.Qi has now been integrated into a single coil and chip.
Finding your first full-time job? - Page 1
Forum section: electronics / general

author: Randall W. Lott
author_rank: Regular Contributor
timestamp: February 15, 2014, 08:45:08 pm
content: I've been having a very difficult time finding work in the Boston, MA area. I'm 25 years old and I have my Associate Degree in Electronic Engineering Technology, but I have yet to finish my Bachelors degree. My experiences and skills are beyond most of the peers that I had in my Junior year, though.I don't want to finish school at the moment, mostly due to the fact I have students loans that I want to take care of and I want to work at the moment to cultivate my skills. I'm very motivated and creative, but my grades didn't reflect that due to some life challenges that I've faced. Unfortunately, grades are just numbers, without a story behind them. I'm very intelligent and driven, despite what records show.I almost got hired for a dream job a few weeks ago, but it fell through. I had a 4 hour interview, a tour of the private projects, and they asked all of my resources for written statements. They even put the effort in to make a custom job title due to my educational background. I brought in my personal projects to share and I followed all of the advices of Dave's videos. The engineering managers said that they wanted me, but HR made the final decision to keep searching for someone. It sounds like an upper management issue of funding, even though their company has virtually unlimited funds.Does anyone have any advice? I've applied to hundreds of jobs since July. I'm having a hard time paying rent and I have the potential to be a valuable asset to many places, if I can get a chance. I'm even applying to shitty, hourly jobs that young kids work at. Times are tough.Thank you!

author: nctnico
author_rank: Super Contributor
timestamp: February 15, 2014, 09:04:07 pm
content: Maybe try closer to Silicon Valley? The climate is much nicer there too. Did you try to NOT include your list with grades? I don't think any employer ever asked me about my diploma or grades. I might as well have lied about having a diploma.

author: dr.diesel
author_rank: Super Contributor
timestamp: February 15, 2014, 09:16:47 pm
content: We never checked or asked about grades either, for any of the places I hired for. But we also wouldn't hire anyone without a BS degree, even entry level positions.OP, I know you're in a bad spot, but youreallyneed that BS degree if you wanting in EE, or an electronics spot.

author: Tinkerer
author_rank: Frequent Contributor
timestamp: February 15, 2014, 10:21:05 pm
content: Indeed, they give out student loans like candy today. So as bad as it is to take on more, with the experience it sounds like you have, you should have no problem finding a job if you have a degree plus all that experience.
Fun with magnets - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: February 05, 2014, 10:26:28 am
content: Came across this today and thought I would share as its fun.https://www.youtube.com/watch?feature=player_detailpage&v=5BeFoz3Ypo4

author: saturation
author_rank: Super Contributor
timestamp: February 12, 2014, 08:48:12 pm
content: Lenz's law, a crowd pleaser.

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: February 13, 2014, 01:11:19 pm
content: I have a couple large Neodymium's and there are all sorts of cool things you can do. I keep them stored in a safe place far away from other sensitive objects. I have done this with solid 2 inch thick copper plates at a 45+ degree angle and allowed the magnet to slide down very slow. Kids love it!
Is this soldering grease === flux? - Page 1
Forum section: electronics / general

author: han
author_rank: Frequent Contributor
timestamp: February 12, 2014, 09:28:56 am
content: when i search for flux in digikey i remember long time ago we use lotfett for cleaning solder tip, but i never apply it to the PCB only to the component and solder tip,http://www.conrad-electronic.co.uk/ce/en/product/813400/Stannol-Solder-grease-174083-Content-20-gis this a flux? why the price so cheap compared to flux price in digikey?

author: BravoV
author_rank: Super Contributor
timestamp: February 12, 2014, 09:31:32 am
content: That is for plumbing, its a strong acid paste.

author: Tube_Dude
author_rank: Regular Contributor
timestamp: February 12, 2014, 03:16:00 pm
content: Quote from: BravoV on February 12, 2014, 09:31:32 amIn the box is written in French and Spanish, "acid free". Interestingly not in the English translation...

author: tron
author_rank: Newbie
timestamp: February 12, 2014, 03:49:54 pm
content: not suitable for electronsSTANNOL Soldering paste (grease)for soldering tin-plate,leaded sheet, and fortinning copper and brass.Not suitable for electricalengineering and electronics.

author: mrflibble
author_rank: Super Contributor
timestamp: February 12, 2014, 03:57:22 pm
content: Works fine for tinning wires or large copper clad areas, but don't use it as regular flux.
Delorean Time Machine Manual... - Page 1
Forum section: electronics / general

author: westfw
author_rank: Super Contributor
timestamp: February 11, 2014, 10:16:56 am
content: Dave needs this shirt?https://www.riptapparel.com/graveyard/time-machine-manual/(It showed up because it's a "deal of the day" or something like that. But I imagine it's around at a slightly higher price, elsewhen.)

author: Stonent
author_rank: Super Contributor
timestamp: February 11, 2014, 12:47:38 pm
content: There's also a Dalek manual that I've seen similar to that.
EEVblog's Facebook account is sending me messages over and over again lately - Page 1
Forum section: electronics / general

author: dentaku
author_rank: Frequent Contributor
timestamp: February 11, 2014, 01:11:16 am
content: For the last week or so I've been getting ridiculous amounts of posts from EEVblob on Facebook. I'm getting posts about the same videos over and over again and other people have had the same problem.I like being reminded of new videos on Facebook but something is messed up at the moment.How many of you who have "liked" EEVblog on Facebook are having the same problem?

author: dentaku
author_rank: Frequent Contributor
timestamp: February 11, 2014, 05:29:11 pm
content: Nobody else here has had this problem?

author: STCLSC
author_rank: Newbie
timestamp: February 11, 2014, 05:48:30 pm
content: +1

author: jancumps
author_rank: Unknown
timestamp: February 11, 2014, 06:17:15 pm
content: I'm not a friend of EEVBlog on fb, so didn't receive these mails.I received a big number of mails for a particular post of one of my (real world and fb) friends. Must be something new they implemented.I clicked the unsubscribe link in one of those mails, issue resolved.
ICE/ISEE-3 to return to an Earth no longer capable of speaking to it - Page 1
Forum section: electronics / general

author: apelly
author_rank: Unknown
timestamp: February 10, 2014, 02:47:11 pm
content: Just saw this thought provoking article:http://www.planetary.org/blogs/emily-lakdawalla/2014/02070836-isee-3.htmlQuoteOddly even most of the comments seem interesting.
Forum bug for the messages display list count ? - Page 1
Forum section: electronics / general

author: BravoV
author_rank: Super Contributor
timestamp: February 09, 2014, 02:53:49 pm
content: The default messages display list is 15, but I want more and apparently the setting > 15 doesn't work.Changed it, log out and re-login back in forum, tried several times, still stuck at the same max at 15 lines messages.Any one having the same experience ?

author: hans
author_rank: Super Contributor
timestamp: February 09, 2014, 03:26:07 pm
content: I've got it set to 50 topics/messages per page, and I seem to get 50 topics/posts per page.Does the count reset back to 15 all the time? Maybe it's a bug in the newer board versions? I've got it setup for ages like this.
Light pollution comedy - Page 1
Forum section: electronics / general

author: jh15
author_rank: Frequent Contributor
timestamp: February 09, 2014, 05:22:26 am
content: Since I'm into light pollution (abating, not creating) I thought this was funny, and could only think of Dave being one of involved, the ending especially:http://elitedaily.com/humor/neighbors-legendary-argument-floodlight/

author: GeoffS
author_rank: Unknown
timestamp: February 09, 2014, 05:47:10 am
content: Previously posted here along with others from the same author.https://www.eevblog.com/forum/chat/it%27s-australia-not-austria/msg374459/#msg374459

author: peter.mitchell
author_rank: Super Contributor
timestamp: February 09, 2014, 07:45:53 am
content: wait... they quoted "the meta picture" as the source? the fuck? they couldn't even visit the URL used in the title picture to see that that is clearly the originating website!?
TQFP100 is moisture sensitive? - Page 1
Forum section: electronics / general

author: vlad777
author_rank: Frequent Contributor
timestamp: February 08, 2014, 10:29:11 am
content: Hello,I just received this packet from Farnell and I am kind of surprised that tqfp100 (0.5mm pitch) is moisture sensitive.It say's level 3 on the packet. Is this for real or are they sending everything in these bags?Anyway it is a Lattice machxo 1200 PLD I want to play with.Many thanks.EDIT:Previously they sent me a Xilinx PLCC44 in moisture sensitive bag also. ?

author: ovnr
author_rank: Frequent Contributor
timestamp: February 08, 2014, 11:10:07 am
content: It's not really based only on what package type it is, but also the materials used.I've even gotten MSL3-rated LEDs.

author: vlad777
author_rank: Frequent Contributor
timestamp: February 08, 2014, 11:14:41 am
content: I am not expert in leds, but some white leds have rubbery surface probably filled with phosphorus.But tqfp is just plastic and metal (from the outside). What here can be affected with moisture?EDIT:Does this msl3 applies to soldering, because I am not going to use reflow or heat gun?

author: rsjsouza
author_rank: Super Contributor
timestamp: February 08, 2014, 12:07:52 pm
content: I am not sure about this particular part, but authorized distributors usually follow the manufacturers' recommendations to the dot as they do not want to be held responsible for a mess up in an end customer product.And yes, "plastic" and metal can be hygroscopic - i.e. loooooove toadsorband maybe evenabsorbwater in the air.However, if this is a small hand-soldered batch then you should be fine - in massive production runs you want to keep moisture away to refrain from interfering with the oven soldering process.Just to play safe, only open the package before soldering the part, and keep the remaining ones in the tightly closed bag with the silica-gel and the moisture card (usually there is one).

author: Psi
author_rank: Super Contributor
timestamp: February 08, 2014, 12:12:31 pm
content: i've hand soldered lots of atmega's that all came in moisture sensitive packaging from digikey and never had issues. Most of them came in lots of 10 and were removed from the packaging and slowly used up over a long period.

author: amyk
author_rank: Super Contributor
timestamp: February 08, 2014, 01:09:32 pm
content: The main issue is with reflow where the whole part gets heated and the escaping vapour can crack the package, if you are just heating the legs manually with a soldering iron it won't be much of a problem if the body has absorbed moisture.
SeaOrbiter - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: February 07, 2014, 01:27:53 pm
content: http://www.news.com.au/technology/design/seaorbiter-is-the-worlds-first-nonstop-research-vessel-hoping-to-find-atlantis/story-fnjwucvh-1226821061499

author: Rerouter
author_rank: Super Contributor
timestamp: February 07, 2014, 01:36:10 pm
content: I am mainly confused how the space simulator ties in with this??

author: scientist
author_rank: Frequent Contributor
timestamp: February 07, 2014, 08:09:49 pm
content: Seems like maintenance would be pretty difficult. Also, how do they maintain pressure in that flimsy shell?And what is a blue whale doing next to it, eating the propellers? The environmentalists will have a field day with that one.

author: Tinkerer
author_rank: Frequent Contributor
timestamp: February 08, 2014, 04:44:37 am
content: Quote from: scientist on February 07, 2014, 08:09:49 pmWell actually, since the thing only goes 100ft underwater, it doesnt have to contend with alot of pressure. In fact the pressure at 100 ft is only about 60psi. Some tires go that high.

author: vk6zgo
author_rank: Super Contributor
timestamp: February 08, 2014, 05:30:49 am
content: Cyclone 1,Sea Orbiter 0
Chip Identification - Page 1
Forum section: electronics / general

author: orion242
author_rank: Unknown
timestamp: February 08, 2014, 02:42:18 am
content: Can anyone help identify this chip?I have a device that failed a firmware update and its pretty much a brick now. Pretty sure this is flash with the boot code....or had the boot code. The googles don't seem to be turning up much.

author: krish2487
author_rank: Frequent Contributor
timestamp: February 08, 2014, 03:22:56 am
content: It is an intel chip.It is an intel 28F640 flash memory.Second hit on googling gives the ds.

author: orion242
author_rank: Unknown
timestamp: February 08, 2014, 03:34:23 am
content: thanks!I was working towards that looking for Intel flash and looking the options... I thought the number was 28F64D.
SMD components top marking - Page 1
Forum section: electronics / general

author: Unixon
author_rank: Frequent Contributor
timestamp: February 07, 2014, 06:14:07 pm
content: Why only SMD resistors have marking, but not ceramic capacitors and small inductors?Resistors are easy to measure with high precision while small capacitors and inductor are not.

author: MatCat
author_rank: Frequent Contributor
timestamp: February 07, 2014, 06:50:24 pm
content: Quote from: Unixon on February 07, 2014, 06:14:07 pmI have often wondered this myself.

author: SeanB
author_rank: Super Contributor
timestamp: February 07, 2014, 06:56:03 pm
content: Cost of the ink and the printer. in most cases the parts are supplied on a reel and used from that. Marking will double the cost for no benefit to the manufacturer or the assembly house. Even resistors are going to being unmarked as well, though there it is not much extra to add the mark as you are already printing a layer of ink on them as protection for the film so the lettering is basically free.

author: Unixon
author_rank: Frequent Contributor
timestamp: February 07, 2014, 07:31:47 pm
content: Indeed, there's a place for hobbyist-for-hobbyist business: measure, mark and repack a reel of SMD parts as a service product.

author: SeanB
author_rank: Super Contributor
timestamp: February 07, 2014, 07:33:47 pm
content: I can see a use for SMT resistors being different colours. that way you can have a transparent case with a little pizzaz inside.
High intensity white LED - Page 1
Forum section: electronics / general

author: Mike Warren
author_rank: Unknown
timestamp: February 07, 2014, 05:58:59 am
content: Does anyone know of a place in Australia that might be able to supply LEDs like the one shown in single quantities?This is all I know about it.- Looks to be about 5000K temperature.- Body size is about 6mm x 7mm.- Voltage drop is about 3V- Current around 180mAThe main problem I have is the case style.

author: djococaud
author_rank: Regular Contributor
timestamp: February 07, 2014, 07:07:32 am
content: Hi,Looks like OSRAM Dragon LED,http://au.element14.com/osram/lww5smjykyjkql-4/led-hi-bright-golden-dragon/dp/1860538Not cheap, but you can order from one piece...(you'll want to look for the shipping costs, becauce it comes frome UK)Have a nice day !PS: you can solder it by hand but make sure you add some thermal grease underneath... (and good luck to desolder the bad one, with the thermal pad soldered on PCB !)

author: Mike Warren
author_rank: Unknown
timestamp: February 07, 2014, 12:22:23 pm
content: Thanks. That looks like it might do the trick.I've already unsoldered the old one with a hot air rework station.
Hey Dave, Don't bother with Facebook, like you needed more data. - Page 1
Forum section: electronics / general

author: Jebnor
author_rank: Regular Contributor
timestamp: February 10, 2014, 09:39:07 pm
content: Proof Facefook is Bullshit.

author: AlfBaz
author_rank: Super Contributor
timestamp: February 11, 2014, 12:18:02 am
content: LOL, who'd of thought, bullshit on the internet

author: EEVblog
author_rank: Unknown
timestamp: February 11, 2014, 05:19:56 am
content: and people wonder why I don't use Facebook.Well, ok, I have a page for those who want to get new videos announcements there, but I never look at it or interact.

author: Galenbo
author_rank: Super Contributor
timestamp: February 11, 2014, 10:47:48 am
content: Nice youtube invesigation video.Saying Facebook is FaKebook was easy, now I have some proof.
Where is Phil from Jumper 1? - Page 1
Forum section: electronics / general

author: nzo
author_rank: Regular Contributor
timestamp: February 06, 2014, 09:04:21 am
content: Hi allJust wondering if anyone knows what happened to Phil of the excellent DIY electronics websiteJumper 1? It's been off-air for about a year and now the domain is empty.He was a favorite of mine and I wondered if he's ok, just moved on, deceased etc.Best wishes all and thanks for any info.John
Taranis Cool super toy or world menace - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: February 05, 2014, 06:27:25 pm
content: The UK has now developed a new super drone that flies at supersonic speeds and is comppleatly autonomous once launched.http://www.dailymail.co.uk/sciencetech/article-2552361/Britains-deadly-superdrone-makes-test-flight-Taranis-unmanned-military-vehicle-surpassed-expectations-air.htmlIs this cool or a real threat to us all.

author: Sigmoid
author_rank: Frequent Contributor
timestamp: February 05, 2014, 06:39:01 pm
content: Well, are manned supersonic planes a threat to all of us?In a way yes, as they can be used to carry a nuclear warhead. In a way, they aren't. In a way they are awesome, and I want more of them, esp. in civilian use (like a successor to the Concorde program).I am a huge fan of the civilian use of UAVs*, but do accept the fact that military use has been, and will continue to be an important driving force behind technology.It's not the technology that is a threat, but politicians (and grassroots fanatics) who make wars. While the H-bomb is usually seen as a threat, I do think the threat of mutual destruction just might have stopped some unresponsible and downright insane politicians from going to war once again.And you can kill millions with nothing but Kalashnikovs just fine. You don't need tech for that.* - Those interested, check this out:https://www.youtube.com/user/nastycop420

author: pickle9000
author_rank: Super Contributor
timestamp: February 05, 2014, 07:22:16 pm
content: I've always had the mind that a small unmanned vehicle (like a boat or a quad with explosives or a drug carrier) to be more of an everyday problem. One that a regular criminal could make use of.

author: G7PSK
author_rank: Super Contributor
timestamp: February 05, 2014, 09:38:57 pm
content: But these drones are "autonomous" once launched they decide the target and whether to fire or not without any human intervention. This is getting very close to the machine deciding if its going to launch itself or not. Are we drifting into the rise of the machines while wearing rose tinted glasses.We should be.

author: Sigmoid
author_rank: Frequent Contributor
timestamp: February 05, 2014, 09:40:45 pm
content: As a software engineer, I'll start worrying when we won't be able to read the code. Currently we're still doing 95% of the writing, so it's all okay.Quote from: G7PSK on February 05, 2014, 09:38:57 pm

author: scientist
author_rank: Frequent Contributor
timestamp: February 06, 2014, 05:16:47 am
content: Funny, Taranis is the name of a popular, new, highly capable Chinese RC transmitter that came out recently.

author: peter.mitchell
author_rank: Super Contributor
timestamp: February 06, 2014, 07:19:04 am
content: Quote from: scientist on February 06, 2014, 05:16:47 amThis is immediately what i thought of...
A Day in the Life of Digi-Key Slideshow - Page 1
Forum section: electronics / general

author: chicken
author_rank: Frequent Contributor
timestamp: February 05, 2014, 03:35:33 am
content: http://spectrum.ieee.org/slideshow/semiconductors/devices/slideshow-a-day-in-the-life-of-digikey..and I always imagined rows and rows of robots cutting tapes and pick&placing tiny QFNs into foam-padded boxes.

author: Fsck
author_rank: Super Contributor
timestamp: February 05, 2014, 03:49:04 am
content: now I feel bad ordering singles of hundreds of items

author: scientist
author_rank: Frequent Contributor
timestamp: February 05, 2014, 04:08:50 am
content: Quote from: Fsck on February 05, 2014, 03:49:04 amWhy would you do that?

author: EEVblog
author_rank: Unknown
timestamp: February 05, 2014, 04:51:21 am
content: Quote from: Fsck on February 05, 2014, 03:49:04 amIt keeps thousands in that small town employed!

author: Bored@Work
author_rank: Super Contributor
timestamp: February 05, 2014, 05:40:16 am
content: I was expecting robo-pickers, zipping through deserted high bay warehouses, no human eye ever seeing inside the box of a shipment.Wikipedia says Thief River Falls has a population of 8573 in a county with a population of 13930. A company with 2600 employees is no small fry in such an area.
Green Microcurrent sample boards - Page 1
Forum section: electronics / general

author: Excavatoree
author_rank: Frequent Contributor
timestamp: February 04, 2014, 02:59:37 pm
content: I've kept up with the forum pretty well, but if this has been mentioned and I've not seen it, please forgive me.I was thinking about the green sample boards that Dave has received. Some have commented that they like the color. If these are actually functioning boards, would Dave consider selling them or offering them as a contest premium as a "do it yourself version" of a microcurrent gold? "Microcurrent Green?"Of course, they would be sold/given/whatever as an unsupported, no warranties expressed or implied, no guarantees about suitability for any purpose, etc. bare boards. No support, no questions, no ups, no extras.Just a thought.EDIT: I forgot to add: I believe these are ungrooved panels, so I'm guessing Dave doesn't want to be bothered to saw them apart. I'd expect that they would be sold/given/etc as complete panels with as little work to Dave as possible.

author: nanofrog
author_rank: Super Contributor
timestamp: February 04, 2014, 05:46:12 pm
content: Interesting idea.

author: Anks
author_rank: Frequent Contributor
timestamp: February 05, 2014, 01:35:06 am
content: uCurrent olive (green) gold edition
Best way to model a lightning strike - Page 1
Forum section: electronics / general

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 04, 2014, 09:07:35 pm
content: What's the best way to model a lightning strike? For instance in a simulation or calculation. Is it best modeled as a capacitor? Voltage source? Current source? Transient voltage waveform?In the context of simulating the effects of lightning strikes on off-line power supplies and equipment.

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 04, 2014, 09:16:13 pm
content: A pulsed high current source. Pretty much all you have to do is give it a path around the devices to be protected.

author: IanB
author_rank: Super Contributor
timestamp: February 04, 2014, 09:17:55 pm
content: I guess you probably want to model the effect you are defending against?I believe a lightning strike is complex, in both the time and frequency domain. There is a strong DC element with a large amount of RF superimposed.In industrial settings like broadcast antennas, they defend against lightning strikes by equi-potential bonding. By keeping a low resistance path between all parts of the apparatus everything rises and falls in potential at the same time and excess potential gradients cannot arise within the system and produce fault currents. So I imagine you could simulate this situation by suddenly stepping one end of the system up in voltage by a large amount?In other cases maybe RF filtering is important, so you could simulate the injection of a wide band RF signal?

author: Rufus
author_rank: Super Contributor
timestamp: February 04, 2014, 09:29:33 pm
content: Quote from: Phaedrus on February 04, 2014, 09:07:35 pmThishttp://www.hvtechnologies.com/LinkClick.aspx?fileticket=paGvyaJoRgM%3D&tabid=190Gives you the waveforms and levels (for different equipment categories) used to test aircraft equipment against indirect lightning effects.The transients are applied with respect to earth directly to 'pins' or to a whole cable bundle. The dc transients are applied with both polarities.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: February 04, 2014, 09:36:40 pm
content: Speaking of which....

author: Phaedrus
author_rank: Frequent Contributor
timestamp: February 04, 2014, 09:44:44 pm
content: Thanks!I mainly want to compare different SMPS topologies, with and without PFC, with and without MOV and ZVS diodes, to see which combinations have the best survival rate. Best case being the PSU and attached electronics surviving; acceptable being the PSU dead, but attached equipment surviving; worst being both power supply and attached equipment fried. With a low impedance path to ground as well of course, but there's still some energy delivered to the PSU.

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 04, 2014, 10:01:18 pm
content: HP used to put a MOV right after the fuse, but moved it in front of the fuse in later revisions. Apparently, they were having too many returns due to the MOV blowing the fuse.
Happy Chinese new year and why you ought not rely on auto translate. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: February 03, 2014, 03:30:31 pm
content: BBC caption for Chinese new year.

author: Frost
author_rank: Regular Contributor
timestamp: February 03, 2014, 03:43:17 pm
content: I hope that Xi Jinping did not watch BBC News

author: Wytnucls
author_rank: Super Contributor
timestamp: February 03, 2014, 03:45:56 pm
content: That's a hoax, surely.

author: 8086
author_rank: Super Contributor
timestamp: February 03, 2014, 03:49:23 pm
content: It's no hoax.http://www.independent.co.uk/news/media/tv-radio/chinese-new-year-bbc-blunder-welcome-to-the-year-of-the-whores-9102117.htmlIt is the year of the horse.

author: Wytnucls
author_rank: Super Contributor
timestamp: February 03, 2014, 03:55:13 pm
content: Are they any native speakers left at the BBC?

author: 8086
author_rank: Super Contributor
timestamp: February 03, 2014, 03:59:55 pm
content: Quote from: Wytnucls on February 03, 2014, 03:55:13 pmIt's done by a computer I believe.

author: tom66
author_rank: Super Contributor
timestamp: February 03, 2014, 04:05:45 pm
content: No, it's done by a phonetic keyboard typist (a stenographer; on a stenotype keyboard typically.)This means the potential for similar sounding words to slip in is high because there might only be a slight phonetic difference.You don't type full words just the sound of them. Very skilled job, something around 200 wpm average.

author: IanB
author_rank: Super Contributor
timestamp: February 03, 2014, 04:07:04 pm
content: Quote from: 8086 on February 03, 2014, 03:49:23 pmIt seems everyone has trouble with English these days. That Independent article linked above has this:Surely that should have been "much to the embarrassment of the channel"?

author: MatCat
author_rank: Frequent Contributor
timestamp: February 03, 2014, 04:26:39 pm
content: ROFL! I was reading the article on that and there was a time some church official was titled 'The bitch of Canterbury' ROFL

author: echen1024
author_rank: Super Contributor
timestamp: February 03, 2014, 04:38:13 pm
content: One thing I will tell you is that the BBC will now be censored for being "harmful to the state"

author: TerraHertz
author_rank: Super Contributor
timestamp: February 04, 2014, 02:06:05 am
content: Speaking of televised goofs...

author: amyk
author_rank: Super Contributor
timestamp: February 04, 2014, 06:00:35 am
content: I thought it was autotranscribe gone wrong... likehttps://www.eevblog.com/forum/blog/eevblog-112-gsm-vs-the-fluke-87v-multimeter/45/
Having trouble find a specific video. - Page 1
Forum section: electronics / general

author: txgman
author_rank: Newbie
timestamp: February 01, 2014, 12:08:28 pm
content: Hello everyone, a few months back I came across a video of Mr. David Jones talking about a cool little item he had just purchased. He had bought from what I can remember was a 1950s era IBM computer bit that was the size of his hand, full of resistors and just plain cool. I would like to show my students this video but cannot find it. I have looked through pretty much all of EEVBlog's youtube videos, all 600 and something. Can anyone help?Thank You,Gary

author: EEVblog
author_rank: Unknown
timestamp: February 01, 2014, 12:14:47 pm
content: I'm scratching my head...

author: G7PSK
author_rank: Super Contributor
timestamp: February 01, 2014, 03:29:00 pm
content: Was it the old Hard disk that Dave had, As I remember it was very large and held less than a floppy. I cant find it but remember seeing it some time ago.

author: baljemmett
author_rank: Unknown
timestamp: February 01, 2014, 05:25:28 pm
content: Are you thinking of the LVDC board that Fran sent him in a recent Mailbag episode (561)? I think I saw mention that the construction style/technology used on those boards was also seen in some contemperaneous IBM systems...

author: txgman
author_rank: Newbie
timestamp: February 02, 2014, 12:22:13 am
content: No, It was a byte or probably bit as he called it that was made up of numerous resistors. I believe I remember he said he bought it from someone in Sweden for $400 or $500 bucks.I figured it would be a long shot, but I do appreciate everyones help.

author: EEVblog
author_rank: Unknown
timestamp: February 02, 2014, 01:15:54 am
content: Quote from: txgman on February 02, 2014, 12:22:13 amThat doesn't ring a bell at all.

author: tekfan
author_rank: Frequent Contributor
timestamp: February 03, 2014, 05:29:32 am
content: Maybe this?

author: Psi
author_rank: Super Contributor
timestamp: February 03, 2014, 05:33:05 am
content: Yeah, i'm pretty sure that's what he's thinking of.

author: txgman
author_rank: Newbie
timestamp: February 03, 2014, 10:54:35 pm
content: That is it, I dont know how I got it twisted with EEVblog but I did. Fantastic

author: EEVblog
author_rank: Unknown
timestamp: February 03, 2014, 11:52:06 pm
content: Quote from: wilfred on February 03, 2014, 11:45:56 pmI love using Abebooks to find books:http://www.abebooks.com/servlet/SearchResults?sts=t&tn=The+Soul+of+A+New+Machine$3.41 inc postage in the US.Even shipping to Oz is almost always quite reasonable.