hybridfree/eevblog-posts huggingface dataset:
How do you deal with a frustrating situation? (BGA reballing) - Page 1
Forum section: electronics / general

author: technix
author_rank: Super Contributor
timestamp: December 16, 2017, 12:22:58 pm
content: So the BGA reballing kit (stencil + holder type) I ordered arrived today and I start trying it using one of the cheapest BGA chips that I need to reball. Well that is where the hope ends as no matter how I try there is always a few balls that refuse to stick to the chip. The solder balls are supposed to mely at 217 degrees Celsius (lead-free balls) but even with my hot air turned to 285 degrees it won't stick.I am on the verge of returning the kit (except the 0.6mm balls which I have used some - I am an honest customer and would not return my used consumables) and throwing away the chips (that includes some SoC I was planning to experiment with, but without reballing it is going nowhere.) Do you have any suggestion, both on the technical side (as how to reball using stencil and balls - my previous post on this fell on silent ears, and the online material almost always called for preform which I cannot find) and on the anger management side.

author: ataradov
author_rank: Super Contributor
timestamp: December 16, 2017, 06:04:31 pm
content: All of the balls rarely stay in place. Your goal is to get the bulk on, and then deal with a few that would not stick without the stencil.Watch Louis Rossmann videos. He has done lots of reballs and has a very practical approach to the whole thing.
Do solar cells need to be tabbed completely? - Page 1
Forum section: electronics / general

author: adjustttt
author_rank: Contributor
timestamp: December 16, 2017, 11:03:32 pm
content: Do the white lines on these kinds solar cells need to be tabbed completely?I am not using in a typical solar panel configuration, making it hard to tab them normally Would hooking them up like this guy didCause any problems? thanksI posted this same question on stack exchange but didn't get any answers I am sorry if that is wrong but I am in a hurry for time

author: BrianHG
author_rank: Super Contributor
timestamp: December 16, 2017, 11:42:42 pm
content: It's your choice. So long as when you tab them, you don't flux or muck up or block any light to the surface of the solar cell, the tabbing will give you a slightly lower resistance giving slightly more current. I do not know the amount difference, you would need to contact the manufacturer of the solar cell.Without, the solar cell will still work fine unless you plan on drawing as much current as possible.The bottom side is already 1 thick piece of metal, so you don't need long tabbing.

author: Brumby
author_rank: Unknown
timestamp: December 17, 2017, 01:50:03 am
content: Like the iron he uses.....?
FYI - Robby the Robot sold for over 5 million US last month - Page 1
Forum section: electronics / general

author: ez24
author_rank: Super Contributor
timestamp: December 15, 2017, 11:11:41 pm
content: FYIQuotehttps://en.wikipedia.org/wiki/Robby_the_RobotI am watching him in a Columbo show, S3 E6
Metals sticking. I need a Chemical Engineer or a Physicists - Page 1
Forum section: electronics / general

author: calexanian
author_rank: Super Contributor
timestamp: December 14, 2017, 06:13:34 am
content: So I was cleaning cleaning nickel strips about .750" wide, 6" long, and .010 thick in my hydrogen reducing tube furnace, which on the previous load I was cleaning .035 nickel rod of the same alloy which proceeded as normal. The strips however came out in an unexpected manner. Several of them stuck together at various points. Almost as if lightly spot wended. They were clean and degreased before loading in the furnace. It got nowhere near the melting temperature of the material. Strange. I know things get very clean in that style furnace, but I don't believe the conditions are right for a cold weld or other molecular welding.Anybody have any ideas what may have happened? I thought perhaps a foreign metal may have gotten in and perhaps formed some lower melting temp spots, but i see no other evidence of that. All perfectly clean nickel.conditions were 100% dry hydrogen at a light flow, and approximately 950 to 1000 degree celsius over the length of the furnace. Strange.

author: Ian.M
author_rank: Super Contributor
timestamp: December 14, 2017, 06:26:45 am
content: Nickel powders can reliably be sintered in a 5% Hydrogen, 95% Nitrogen reducing atmosphere at temperatures as low as 600°C.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 14, 2017, 07:11:39 am
content: IIRC, diffusion bonding is effective at about half the melting point, which sounds reasonable here.Tim

author: calexanian
author_rank: Super Contributor
timestamp: December 14, 2017, 08:05:51 pm
content: Thanks. I dd not know both processes could be performed at such low temperatures. I see reference that wet hydrogen can be used to avoid this where it is not detrimental to the process.

author: woodchips
author_rank: Frequent Contributor
timestamp: December 15, 2017, 11:22:35 am
content: Possibly the molecular bonding you get with very smooth surfaces such as slip gauges?
Solidworks letter spacing in sketch text - Page 1
Forum section: electronics / general

author: MrOmnos
author_rank: Frequent Contributor
timestamp: December 16, 2017, 11:18:07 am
content: Hello,I want letters to be spaced at equal distance vertically and horizontallyWhat I am doing is sketching a center line at equal intervals with equal spacing and using it to align the text. I center aligned the text and then tried using letter spacing to align the text with above text but increasing letter spacing is not that precise with 10% being the lowest increment you can make. I am new to slid works so, I don't know other way to do it. How do I do it?
Homemade VNA - worth the effort? - Page 1
Forum section: electronics / general

author: Free_WiFi
author_rank: Regular Contributor
timestamp: December 14, 2017, 01:37:56 am
content: I'm just a simple guy,without big money in my pocket.I can't afford to my self expensive test equipments.Really often i surfing on the net to find something of good and open source,in this case i've found this intersting project about an home made VNA.I wanna show it to this comunity and also ask,if this project worth an try.Here you have :http://hforsten.com/improved-homemade-vna.html

author: chriswebb
author_rank: Unknown
timestamp: December 14, 2017, 03:25:58 am
content: A few people including henrikf appear to be discussing homemade vnas in the RF Forum. Have you checked that out yet?https://www.eevblog.com/forum/rf-microwave/open-hardware-microwave-vector-network-analyzer/

author: Free_WiFi
author_rank: Regular Contributor
timestamp: December 14, 2017, 10:54:10 am
content: Quote from: chriswebb on December 14, 2017, 03:25:58 amNot yet,but thanks you for this information
Schematic symbol for a flux capacitor?  - Page 1
Forum section: electronics / general

author: vk3yedotcom
author_rank: Frequent Contributor
timestamp: December 14, 2017, 08:27:50 pm
content: Does one exist?If not, may I suggest a version ofhttps://upload.wikimedia.org/wikipedia/commons/b/b3/Screenshot_Recursion_via_vlc.pngThe recursive nature of the above (as explained athttp://analgorithmaday.blogspot.com.au/2011/01/recursionfibonacci-series.html) would, I think, be perfect.
Interesting Programmed Machine - Page 1
Forum section: electronics / general

author: Kilo Tango
author_rank: Regular Contributor
timestamp: December 14, 2017, 10:09:09 am
content: I have been interested in marble machines for some time, and here's a chap who has combined a marble machine with a Xylophone, programmed in the original way with a long strip carrying the sequence of instructions.Amazing, creative minds still exist !.Ken

author: Mr. Scram
author_rank: Super Contributor
timestamp: December 14, 2017, 10:57:44 am
content: It's a nice build, but programming machines through similar methods has been done for centuries. Even the Lego specifically is bound to be done by some AFOL before.
Vintage TI 74xx series logic - Page 1
Forum section: electronics / general

author: @rt
author_rank: Super Contributor
timestamp: November 21, 2017, 04:55:30 am
content: Hi GuysI have a few more of these Texas Instruments logic chips on the way. The next one is a dual flip flop.I was hoping to test them in in some kind of jig without soldering. They are a smaller package than I thought.Does anyone have any idea, or even pics, of the type of sockets that would have been used to mount these?Any more information? and do these markings suggest the 20th, and 21st week of 1973?If these are date codes, the flip flop in the same kind of package is the 26th week of 1969, so the package must have existed for some time.Thanks

author: Tomorokoshi
author_rank: Super Contributor
timestamp: November 21, 2017, 06:19:28 am
content: They would have been cut out of the carriers with pin lengths of perhaps 3/16" and surface mounted. Same pin spacing and body size as a SOIC.

author: Benta
author_rank: Super Contributor
timestamp: November 21, 2017, 09:49:42 am
content: Those are a bit odd. That type of package would normally be used for Mil/Aero kind of stuff, but in that case in extended temperature as SN54xx, not SN74xx.Interesting, they would have been expensive back then.

author: Canis Dirus Leidy
author_rank: Regular Contributor
timestamp: November 21, 2017, 11:49:01 am
content: Quote from: Benta on November 21, 2017, 09:49:42 amAccording to theirprice list for 1966, then such packages were by default. If you wanted aplastic DIPplug-in package, then it needed to be specified ("Add the suffix "P" to the type number to order Series 74P in the plug-in package").

author: @rt
author_rank: Super Contributor
timestamp: November 21, 2017, 12:44:04 pm
content: Cool doc! So they do have socketed boards for them then such as SN006A.I take it for manufacturing these wouldn’t be used?Why am I even doing this?It started with vintage ceramic CPUs that I would actually use in old computers,and I guess I got carried away.

author: Ampera
author_rank: Super Contributor
timestamp: November 21, 2017, 02:11:52 pm
content: Quote from: @rt on November 21, 2017, 12:44:04 pmChip collection is infectious.Soon you will truly be one of usone of usone of usone of-alright I'll stop now.

author: @rt
author_rank: Super Contributor
timestamp: November 21, 2017, 03:27:16 pm
content: By one of us, you mean poor? Yeah that already happenedPart of me is already trying to restrain the other part from looking at vintage wafers.

author: @rt
author_rank: Super Contributor
timestamp: December 13, 2017, 05:14:41 am
content: Looks like I do have a problemShame this one came in plastic bubblewrap.
Apollo Landing Radar 1968 Ryan Aeronautical - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: December 12, 2017, 02:51:31 pm
content: APOLLO EXPERIENCE REPORTLUNAR MODULE LANDING RADARAND RENDEZVOUS RADAR 1972https://www.hq.nasa.gov/alsj/ApolloLMRadarTND6849.pdf
Rocketlabs launch. - Page 1
Forum section: electronics / general

author: hamster_nz
author_rank: Super Contributor
timestamp: December 12, 2017, 03:42:14 am
content: Watch it if you are quick...

author: Brumby
author_rank: Unknown
timestamp: December 12, 2017, 03:55:23 am
content: Bugga. Launch aborted with less than 2 seconds to launch.That's annoying.But it seems they are reviewing the data and haven't ruled out a possible launch attempt later in the day - as long as it is still within their launch window....

author: andtfoot
author_rank: Unknown
timestamp: December 12, 2017, 04:06:01 am
content: Now delayed until another day...

author: Brumby
author_rank: Unknown
timestamp: December 12, 2017, 04:38:07 am
content: A bit of a disappointment ... but then it's better to abort on the pad than in flight.At least the launch vehicle and payload are intact and all they have lost is time.

author: Muttley Snickers
author_rank: Unknown
timestamp: December 12, 2017, 05:24:49 am
content: There is a proper technical term for it but I forget what it was now, oh hang on a tick.

author: calexanian
author_rank: Super Contributor
timestamp: December 13, 2017, 07:19:27 pm
content: Good. no Go Fever!
Inside the A350-1000 Airbus Test Plane - Page 1
Forum section: electronics / general

author: woody
author_rank: Frequent Contributor
timestamp: December 09, 2017, 12:21:39 pm
content: Wow!World peace seems so much simpler

author: cpuerror
author_rank: Regular Contributor
timestamp: December 10, 2017, 05:24:26 pm
content: At 9:00 they actually show where all the chem trail tanks are. Not even pretending to hide it anymore....

author: Aztlanpz
author_rank: Regular Contributor
timestamp: December 10, 2017, 05:34:10 pm
content: chem trail tanks lol

author: Towger
author_rank: Super Contributor
timestamp: December 10, 2017, 06:16:20 pm
content: There is more technical details on the Omega Tau podcast:http://omegataupodcast.net/210-a350-flight-testing/

author: HighVoltage
author_rank: Super Contributor
timestamp: December 10, 2017, 06:48:37 pm
content: I find it absolutely amazing, how large and clear the new displays have become.Great Video.

author: BrianHG
author_rank: Super Contributor
timestamp: December 10, 2017, 10:44:33 pm
content: Quote from: HighVoltage on December 10, 2017, 06:48:37 pmYou're right, looking again, realizing that this was filmed in direct sun daylight, and off angle, those displays are truly killer bright.And they need to be as flying above clouds, during the day, that sun is always there....

author: Red Squirrel
author_rank: Super Contributor
timestamp: December 11, 2017, 02:03:28 am
content: Crazy how massive those planes are, especially when all the panels and overhead compartments etc are missing it looks even bigger. So much tech in there too, it's like a space ship.

author: fubar.gr
author_rank: Unknown
timestamp: December 12, 2017, 10:38:46 pm
content: Is it me or the cockpit is painted light blue/green,like old soviet aircraft?

author: ez24
author_rank: Super Contributor
timestamp: December 13, 2017, 05:07:50 am
content: Really interesting - thanks DaveHere are some more detailshttp://www.aircraft.airbus.com/aircraftfamilies/passengeraircraft/a350xwbfamily/a350-1000/A few months ago I heard a story on PBS about the 787 Dreamliner and that the body is built of carbon fiber. Because fiber does not suffer from metal fatigue they are able to increase the inside pressure (lower altitude) and this reduces jet lag.So I was curious if the A350-1000 had a fiber shell and it does.I wonder if anyone here has flown in a 787 and noticed the effect it has on jet lag?

author: taydin
author_rank: Frequent Contributor
timestamp: December 13, 2017, 06:44:27 am
content: I'm curious how much those "avionic grade" water buckets cost ... Probably 10 times premium, just because it is put on a plane

author: taydin
author_rank: Frequent Contributor
timestamp: December 13, 2017, 06:59:01 am
content: Then there's the eerie realization that they put a system in place that transfers measurement and monitoring data to the ground in real time, in case the aircraft crashes.Engineer: "Sir, the aircraft crashed"Manager: "Damn! Did we get all of the data?"E: "Yes we did."M: "How about the crew?"E: "Didn't make it"M: "Shit"
Justice Sociale in Engineering 2: Electric Boogaloo - Page 1
Forum section: electronics / general

author: John B
author_rank: Frequent Contributor
timestamp: December 12, 2017, 06:30:44 am
content: In case you thought the Purdue engineering and science faculties could relax:https://www.campusreform.org/?ID=10257http://www.tandfonline.com/doi/full/10.1080/19378629.2017.1408631QuoteIt's eerily reminiscent of Dawkin's mocking of post modernist gibberish - specifically Luce Irigaray's assertion that fluid dynamics is not well understood due to the privileging of "masculine" physics - studying hard, rigid objects.
TWN Briefings on the WTO Conference. Will effect Engineering. - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: December 12, 2017, 04:01:27 am
content: Straight from Buenos Aires.. hot off the press..https://twn.my/briefings_MC11.htmSanya Reid Smith is very smart. This is top quality work. Curious what people think.TWN Briefing No. 5:Some of the implications of ecommerce proposals for government procurementby Sanya Reid Smithhttp://twn.my/MC11/briefings/BP5.pdfTWN Briefing No. 4:Some preliminary implications of WTO source code proposalby Sanya Reid Smithhttp://twn.my/MC11/briefings/BP4.pdfTWN Briefing No. 3:Preliminary analysis of aspects of some WTO ecommerce proposalby Sanya Reid Smithhttp://twn.my/MC11/briefings/BP3.pdfTWN Briefing No. 2:Some analyses of domestic regulation disciplines – compilation for MC11by Sanya Reid Smithhttp://twn.my/MC11/briefings/BP2.pdf
Any Montrealers here? - Page 1
Forum section: electronics / general

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: December 12, 2017, 01:57:16 am
content: I've lost touch with the places that sell glorious junk. Where could I go these days to rummage through bins of crap and perhaps find a Sony studio monitor (PVM 13 inch-ish)?I need (well, "want") a CRT with analog RGB, s-video, CVBS, and multi-standard.These kinds of "professional" monitors are still expensive on eBay and the shipping and customs are prohibitive. I went to Bégin street and visited the "laptop PC" stores, they're all the same. Nothing older than P4 stuff seemed to me.
The GoodWatch - Page 1
Forum section: electronics / general

author: bitwelder
author_rank: Super Contributor
timestamp: December 11, 2017, 09:35:15 pm
content: The GoodWatch, by Travis Goodspeed.(read the whole twitter thread)https://twitter.com/travisgoodspeed/status/940263089982902272- custom board, runs on MSP430- all features of the original Casio 3208 watch plus:- RPN calculator- hex editor- MSP430 disassembler- has CC1101 radio chip- small TX/RX- sourcecode and CAD files will be availableLooking forward to see its presentation at Shmoocon (January 19-21, 2018)

author: saturation
author_rank: Super Contributor
timestamp: December 12, 2017, 12:38:43 am
content: ... and more:https://www.nostarch.com/gtfo
is this seller a scammer ? - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: December 09, 2017, 10:31:52 am
content: https://www.ebay.com/sch/dolorecubide_0/m.html?_nkw=&_armrs=1&_ipg=&_from=looking at the feedback they look legit but they are from usa and listings are in German also the items are quite cheap seeing how big they are the shipping would cost a lot more to ship it nzjust don't want to waist my time buying the item only to find out its a scam

author: DC1MC
author_rank: Super Contributor
timestamp: December 09, 2017, 10:35:15 am
content: The Chinese junk that it sells can be had form everywhere, don't see anything that is worth picking up from the ground, much less paying good money for it.

author: sony mavica
author_rank: Frequent Contributor
timestamp: December 10, 2017, 12:01:44 am
content: i want to get thishttps://www.ebay.com/itm/MEDION-E85059-MD-87559-Wireless-LAN-WLAN-Internet-Radio-2-4-TFT-Display-blau/142619470616?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

author: GreyWoolfe
author_rank: Unknown
timestamp: December 10, 2017, 12:50:35 am
content: That actually looks pretty cool.

author: wraper
author_rank: Unknown
timestamp: December 10, 2017, 12:57:45 am
content: IMO, most likely it's a hacked account.

author: wraper
author_rank: Unknown
timestamp: December 10, 2017, 01:00:47 am
content: Quote from: blueskull on December 09, 2017, 10:35:19 amSelling at half of the retail price with free worldwide shipping for such large items?

author: sony mavica
author_rank: Frequent Contributor
timestamp: December 10, 2017, 04:39:35 am
content: ok

author: Muttley Snickers
author_rank: Unknown
timestamp: December 10, 2017, 05:20:03 am
content: From my observations the Medion brand is sold here in Australia and elsewhere through Aldi and I would suspect that they probably receive more back in returns than they actually sell, the "scammer" you describe may well be selling refurbished or returned stock which appear to be questionable products to begin with in regards to quality and workmanship, in other words it is all cheap shit destined for the recycle bin.

author: sony mavica
author_rank: Frequent Contributor
timestamp: December 10, 2017, 10:20:48 pm
content: Quote from: Muttley Snickers on December 10, 2017, 05:20:03 amgood to know but i still want to get itwent back looked at sellers feedback some is privet

author: wraper
author_rank: Unknown
timestamp: December 10, 2017, 10:42:39 pm
content: Quote from: blueskull on December 10, 2017, 10:26:06 pm
EEPROM 95042U3 Replacement - Page 1
Forum section: electronics / general

author: OCBSlimz
author_rank: Contributor
timestamp: December 11, 2017, 10:12:58 am
content: Any of you guys good on EEPROMS ?I am looking for an EEPROM 95042U3 from ST MicroelectronicsI **THINK** its part of the 95040 family but not sure, It goes into an ABS system for a Porsche Caymenn and VW TouraegI also believe that its discontinued and would like to know what could replace it.Impossible to get hold a Datasheet for this.Can anyone help?KRMatt
Off the wall humour................... post here........... - Page 1
Forum section: electronics / general

author: Freelander
author_rank: Regular Contributor
timestamp: December 09, 2017, 12:28:42 pm
content: I loved this one - nearly spat out me cup of cha....

author: blackbird
author_rank: Regular Contributor
timestamp: December 09, 2017, 01:30:37 pm
content: Quote from: Freelander on December 09, 2017, 12:28:42 pmLOL, hurray for NBC training ;-)

author: TerraHertz
author_rank: Super Contributor
timestamp: December 09, 2017, 10:47:18 pm
content: https://9gag.com/gag/a88Oz8eWith teamwork you can achieve great things.
Tis the season for questionable electrical contraptions.  - Page 1
Forum section: electronics / general

author: Red Squirrel
author_rank: Super Contributor
timestamp: December 09, 2017, 02:19:04 am
content: Not only does it rectify AC into 120hz pulsed DC, but it also converts from 2 prong to 3 prong, because a lot of things that you want to plug into like timers etc are only 2 prong and you might need to plug an extension cord that is 3 prong. So it fixes that issue too.I'm sure we've all been guilty of jury rigging stuff for Christmas, feel free to share yours.

author: Cyberdragon
author_rank: Super Contributor
timestamp: December 10, 2017, 12:14:29 am
content: Not mine, but here's a fun one.
Where's the link to see unread responses to threads I subscribed/posted to? - Page 1
Forum section: electronics / general

author: VinzC
author_rank: Frequent Contributor
timestamp: December 10, 2017, 09:21:30 pm
content: Hi all.I've been searching for days for the link where I could see unread replies to threads I posted to or created. I cannot put my finger on it so I have no idea whenever I get a response and in what thread. I can't even know if I get responses at all for I don't — of course — remember everywhere I wrote, it's a little annoying. It seems to me that link was in "profile settings" or something but I can 't find it back.Does anyone know?

author: ataradov
author_rank: Super Contributor
timestamp: December 11, 2017, 12:03:02 am
content: https://www.eevblog.com/forum/unreadreplies/

author: VinzC
author_rank: Frequent Contributor
timestamp: December 11, 2017, 09:26:14 am
content: Quote from: ataradov on December 11, 2017, 12:03:02 amAh, thanks! Is this link still available somewhere? (Though I have a doubt since I've browsed the forum menus quite a couple of times, unsuccessfully.) Or do you happen to know why it would no longer be available?

author: PA0PBZ
author_rank: Super Contributor
timestamp: December 11, 2017, 10:28:38 am
content: Click the white^after the "A Free & Open Forum For Electronics Enthusiasts & Professionals" text in the upper right corner.

author: tautech
author_rank: Super Contributor
timestamp: December 11, 2017, 10:34:30 am
content: Quote from: PA0PBZ on December 11, 2017, 10:28:38 amYep, that little show/hide arrow catches us out every now and then.Also:Profile/Summary ----Profile Info/Show Posts....Topics..etc.

author: VinzC
author_rank: Frequent Contributor
timestamp: December 12, 2017, 08:21:21 am
content: Quote from: PA0PBZ on December 11, 2017, 10:28:38 amOh my Goodness! I totally overlooked that— well, it could have been made slightly more obvious than this. I clicked around almost everywhere, missed that one, of course... So thanks!
Adhesive tapes - what to use for what? - Page 1
Forum section: electronics / general

author: kalel
author_rank: Frequent Contributor
timestamp: December 08, 2017, 04:18:11 am
content: This question might be too broad, but would you be able to mention the names and purpose of some tapes in electronics, or do you perhaps know a list of such tapes somewhere?For example, there is the electronics insulation tape made from PVC (which is not very recommended here I believe), there is some Mylar tape advertised for use in transformers (supposedly high temperature resistant), there is of course the Kapton tape. There are different types of double sided tapes.The last two I haven't even heard of before this forum and YouTube videos from electronics channels. There might be many more useful gems out there which I simply do not know about, but would like to.

author: David Hess
author_rank: Super Contributor
timestamp: December 08, 2017, 06:02:37 am
content: Mylar or polyester tape is cheap and tough. Kapton tape is even tougher and works to high temperatures but is much more expensive.

author: HalFET
author_rank: Frequent Contributor
timestamp: December 08, 2017, 08:06:49 am
content: To cite the wise words of a colleague: "Whenever in doubt, kaptonize!"

author: David Hess
author_rank: Super Contributor
timestamp: December 08, 2017, 01:33:22 pm
content: There is also a thicker blue polyester tape used as low cost replacement for Kapton made of polyester which is thicker than the thin yellow polyester/Mylar tape used for transformer insulation and more flexible than Kapton.https://www.kaptontape.com/blue_masking_tapes.phphttps://www.uline.com/BL_6420/Green-PET-Tape
GETAC T800 User here? - Page 1
Forum section: electronics / general

author: Lord of nothing
author_rank: Super Contributor
timestamp: December 04, 2017, 03:58:13 pm
content: HiI would like buy an GETAC T800 G2 does anyone here use one?Thats my config:Code:TD98Y2DI5GXX€ 1.499,00T800 G2 Premium Intel® Atom Processor x7-Z8750 1.6 GHz / 8.1" sunlight readable display/4GB RAM / Multi-touch TS / 128GB eMMC/ Wireless LAN ac / HD Webcam /8MP AF Rear Camera / Bluetooth / TPM2.0 /-21C Wide Range Temp / GPS / 4G LTE / Win 10 Professional 64-bit / 3 year warranty/ UK & EU Power Cord****Z*******€ 139,00Microsoft Windows 10 Professional x64 with default RAM 8GB******G*****€ 198,00Sunlight Readable (LCD + Dual mode Touch screen and Digitizer)*********H**€ 158,00WIFI + BT + GPS + 4G LTE + Pass-through (For T800 G2 Premium SKU Only)**********C*€ 238,00ANSI/ISA 12.12.01***********B€ 110,00RJ 45 X 1 or -->***********G€ 110,00Micro SD X 1GMS2X2€ 28,00Shoulder strap (2 point shoulder strap)GMHSX9€ 39,00T800 - Hand strapGMHSXA€ 39,00T800 - Hand strap (for SnapBack - Smartcard and MSR Reader)GMRSX1€ 8,00T800 - Wrist strapGMPDX2€ 36,00Digitizer Pen & Tether (Applicable to Dual Mode Upgrade)GMPFX8€ 32,00Protection Film (MOQ 10pcs)GAD2X1€ 99,00Getac 90W, 11-16V, 22-32V DC Vehicle AdapterGE-SVCRNFS5Y€ 200,345 Years Bumper to Bumper - Years 1 to 5 (including 2 Years Extended Warranty & Pack and Collect) Z710/T800/ZX70

author: roffvald
author_rank: Unknown
timestamp: December 08, 2017, 01:37:27 am
content: Haven't used their Tablets, but when I sailed as a Comms Officer we had several Getac Laptops onboard, many of whom often were thrown around and fell off desks due to rough seas and crew who didn't really care about them. They all held up great for the most part, we had a HDD die on one of them, but I contacted Getac in Melbourne when we docked there and they had a technician waiting on the dock as we arrived.

author: Halcyon
author_rank: Unknown
timestamp: December 08, 2017, 08:57:59 am
content: Never used the Getac rugged laptops but I have a lot of experience with the Panasonic ToughBooks. Those things are built rock solid, I haven't seen one die yet. They aren't cheap however.

author: Lord of nothing
author_rank: Super Contributor
timestamp: December 08, 2017, 09:04:38 am
content: thx I know about rugged device. I need someone who own a T800 G2 because I dont know how fast the CPU in real life is.Panasonic cant be configured (here). The majo problem is I need:LTE, GPS, Wifi, BT and a Company who give me the Pinout for the "doc" Connector.I want make my own Adapter and put an special USB Stick behind the device and the are still splash proof.
Looking for somebody from southern europe to help me with project logistics - Page 1
Forum section: electronics / general

author: jaromir
author_rank: Unknown
timestamp: December 12, 2017, 02:18:22 pm
content: I'm not sure where to post this, as I don't need technical help falling into EE topics; but it's more like help with logistics - that's why I posted this into off-topic section.What I'm working on is geolocation circuit based on light levelshttps://en.wikipedia.org/wiki/Light_level_geolocatormeant as entry into contest (Coin cell contest ran by Hackaday). While I can build the circuit and "calibrate" it, I'd love to have real data comparison from other places, ideally being at least few hundred kilometers far away from my hometown (Bratislava, Slovakia.)I built a few loggers, with the idea of sending each of them to somebody around the EU (due to faster shipping) -so I'm seeking for volunteers to help me. I already have guy in Berlin to cooperate, now I'd love to have helping hand from southern Europe, like Spain, Italy, Greece or so.The required action from volunteer would be picking the logger from post office, opening the package, leaving it sitting under sky for a few days (logger will run already), then sending back. Logger has dimensions given by the food container it resides for improved rain/impact protection; currently being approximately 4x6x10cm and very lightweight - the food container has mostly air inside. Ideal position for logger is clean view to sky with not strong artificial light (very close light post will disturb measurement somehow), but I'm not very picky.As the contest deadline is approaching, chances of failure are high, I can't guarantee anything other than eternal fame and compensation of shipping expenses in return.

author: PartialDischarge
author_rank: Super Contributor
timestamp: December 12, 2017, 02:40:02 pm
content: Sure, I can help from Spain. sent pm

author: jm_araujo
author_rank: Regular Contributor
timestamp: December 12, 2017, 02:44:49 pm
content: I can do thatI'm from Portugal, small village near Oporto. I live in a house with full sky view and without too much street lighting.If you're interested in my offer or want my house coordinates, email or PM me.
Magazine printing costs? - Page 1
Forum section: electronics / general

author: steve30
author_rank: Frequent Contributor
timestamp: November 14, 2017, 08:52:33 pm
content: Since 2010 I've received a free magazine from a large, national charity. The magazine itself has been going since the early 1990s. It was announced a few months ago that they are going to stop the free edition because "its too expensive", and they are now going to charge for subscriptions.I can't help but think their prices are a bit dubious. They state that it costs the charity £40000 per year to print and post it. Staff costs are probably minimal as the bulk of the content is reader-submitted. As far as I can tell, there are about 9700 sent out each quarter. That's 38800 magazines per year. That's about £1 per magazine.The new paid-subscription prices have an option of either a reduced-rate (for unwaged etc) of £1.75 per magazine, a standard-rate of £4 per magazine, or a donation-rate where you pay too much to help subsidise the reduced-rate.Can anyone think where they get the price of £4 from for the standard rate? I can only assume that they are either overcharging because they can, or that prices will go up due to significantly reduced volume. I'm doubtful that many people will take out a paid subscription.How much do you think it should cost to print and post a small magazine?When I first got the magazine, it was printed on regular paper (A3 sheets folded in half to make an A4 booklet), and printed in monochrome. About a year later, it started to be printed on thicker paper, with bi-colour printing and a full colour (thicker still) cover. Does anyone know how much extra things like this cost? Or is colour printing virtually the same price as monochrome printing these days?I'm interested to hear people's opinions.

author: amyk
author_rank: Super Contributor
timestamp: November 15, 2017, 11:59:50 am
content: How many pages, what size, what paper thickness, etc.? You could ask any of the various printing companies out there for a quote, because with the information you provided it is hard to give estimate.

author: steve30
author_rank: Frequent Contributor
timestamp: December 07, 2017, 03:57:24 am
content: Its 5x A3 sheets, consisting of 4 thin ones (maybe 90gsm) and 1 thick one (maybe 120gsm).

author: Lord of nothing
author_rank: Super Contributor
timestamp: December 07, 2017, 09:29:31 pm
content: Maybe the get less and less money for Ads?Many things got priced up in the last years.
Can't believe it survived - Page 1
Forum section: electronics / general

author: Rick Law
author_rank: Super Contributor
timestamp: December 09, 2017, 12:31:09 am
content: Some times, lucky star is shinning.This box was a 6" x 4" x 3.5" box. The 2.5" PATA laptop drive inside was wrapped in bubble (3 layers). It was shipped from Shenzhen, China to the USA East Coast, and it took about 3 weeks to get here. New 2.5" 320gb PATA drive is hard to find these days, so suppliers are hard to find.One look at the box, I thought I was out of luck. The box was crushed from 6" down to 5" on the less crushed side, 6" down to 3" on the severely crushed side. The thickness was reduced from 3.5" down to 2.5" on the less crushed side and from 3.5" down to 1" on the more crushed side.I was not expecting the drive to survive. Much to my surprise, it powered up AOK. Using the WD "datalife" disk tool, the drive passed the WD quick test and the extended test both without errors.Well, thank my lucky star tonight... I am amazed it survived.

author: Ampera
author_rank: Super Contributor
timestamp: December 09, 2017, 07:24:32 am
content: We have relatives in Germany that like to send us things, and on one occasion the package we got looked like they shipped it across the ocean without a ship. It was wrapped in a big bag with a big sowwy from the postmaster general.I've never had something that looked like it was half steamrolled. Considering most of my orders are rather brittle PCBs, if this were to happen I would be thoroughly screwed.
Unable to buy the Ifixit Pro Tech Screwdriver Set - Page 1
Forum section: electronics / general

author: Free_WiFi
author_rank: Regular Contributor
timestamp: December 06, 2017, 09:57:04 am
content: Im on the official EU website of Ifixit.https://eustore.ifixit.com/en/Tools/Toolkits/Repair-Business-Toolkit.htmlIm looking around and i'm uanble to find out the Pro Tech Screwdriver Set of ifixit,it's only available inside of the "Repair Business Toolkit Version 2018"package.Basically im totally unable to buy the new Pro Tech Screwdriver Set separately from the Repair Business Toolkit Version 2018.I already wrote an email about this,but din't yet received some answears ,so how do you think that i can solve this problem ?

author: BU508A
author_rank: Super Contributor
timestamp: December 06, 2017, 10:01:10 am
content: You mean this one?https://eustore.ifixit.com/Werkzeuge/Toolkits/Pro-Tech-Toolkit.htmlhttps://www.amazon.de/iFixit-Pro-Tech-Werkzeugset-Computer/dp/B007XGWQ2Y

author: Free_WiFi
author_rank: Regular Contributor
timestamp: December 06, 2017, 10:08:05 am
content: Im talking about this one on the pic.

author: BU508A
author_rank: Super Contributor
timestamp: December 06, 2017, 10:16:54 am
content: Yeah, got it.Found one on Amazon from a seller in Spain:https://www.amazon.de/gp/offer-listing/B00HU8CS1Y/ref=dp_olp_0?ie=UTF8&condition=allIt looks to me, that this set is discontinued.If you need a good quality alternative, have a look at the Wiha screwdriver sets:https://www.wiha.com/en-int/produkte/screwdrivers/wiha-picofinish.html

author: Free_WiFi
author_rank: Regular Contributor
timestamp: December 06, 2017, 10:24:15 am
content: Quote from: BU508A on December 06, 2017, 10:16:54 amExactly,it is,but not this one,the black one which is the newest and latest version of this year.I'm already waiting some weeks for the news about it,but none.Maybe somebody here can send an email to ifixit by asking them about the coming of the latest Pro Tech Screwdriver Set?My english is very poor,so i can't really talks with themso if you will do it for me,i will be very greatful .Thanks to all.

author: BBBbbb
author_rank: Unknown
timestamp: December 06, 2017, 10:37:13 pm
content: If you're expecting quality I'd skip it and go for something from Wiha or Wera, both are of a lot higher quality.I've got the 64 bit set from iFixit and as many reported the quality is not that great. I've got it for the exotic bits that the set contains.

author: Free_WiFi
author_rank: Regular Contributor
timestamp: December 07, 2017, 03:18:21 am
content: Ok,thanks you.I will skip the ifixit bullshit.

author: nanofrog
author_rank: Super Contributor
timestamp: December 07, 2017, 03:51:23 am
content: FWIW, Wiha carries more profiles/types than any other quality electronic screwdriver manufacturer.
Laptop battery comes back to life by freezing it? - Page 1
Forum section: electronics / general

author: Jeroen3
author_rank: Super Contributor
timestamp: December 05, 2017, 08:07:58 pm
content: End 2009 I've bought a Dell Vostro 1520 laptop. Fantastic first laptop. With it came a battery.In 2011, the original battery had only 20 minutes of the original 4 hours battery life left. So I bought a new one from eBay.Unfortunately, I bought a "non genuine" one, which the laptop refuses to charge when you plug in the charger when it's off. It's charges fine when your plug in the chargerafterbios post.So, don't drain it too low. It'll be fine. Battery lasts ~6 hours, it's the 6600 mAh one, with the bulge on the end.Fast forward 3 years, and I've drained it. Won't turn on. Can't start charging.Somewhere on "the internet" I read that you could fix this by putting the battery in the freezer. So I did.After 10 minutes in the freezer, behold, the laptop went through bios post and I could plug in the charger.Now today,6 years later, this battery still has 5 hours of battery life. However, the laptop is auxiliary and only used occasionally, by other people.So I happened twice this year I had to redo the freezer trick to get it awake again after they've drained it.Now, thinking about what I was actually doing I have two questions I can't find an answer to:1.Why does this work?Does freezing the battery resets the battery management? Does it indeed raise the cell voltage?2. Why was the old battery 80% worn out after 2 years, and the "non genuine" one only. Is this planned obsolescence?"Non-genuine battery": 12% wear.Design capacity: 73260 mWhLast charge: 64810 mWh"Genuine battery": 75% wear. (does not work anymore)Design capacity: 57720 mWhLast charge: 14830 mWhNote: Freezing your batteries isn't something I can recommend. Condensation is a problem, and maybe even a danger.
ECU (PCM) remapping anyone? - Page 1
Forum section: electronics / general

author: firewalker
author_rank: Super Contributor
timestamp: December 04, 2017, 11:28:40 am
content: Is anyone in car ECU remapping? How does someone play this game?I am only interested from the educational aspect of it. Is it a thing for only EEs? Can a car technician do it? How someone starts? Tools to use?Alexander.
Purpose of copper "lines" coming from PCB vias? - Page 1
Forum section: electronics / general

author: kalel
author_rank: Frequent Contributor
timestamp: December 02, 2017, 10:16:28 pm
content: I've seen something like this on another board before, and this time on a cheap LED light PCB.What is the purpose of these?The images were taken quickly, some are blurred.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: December 03, 2017, 06:54:41 am
content: Thieving patterns for wave soldering?Not so much "thieving" itself, but providing paths for solder to wick away rather than stay globbed on the pad. There's probably a better term.Tim

author: TerraHertz
author_rank: Super Contributor
timestamp: December 03, 2017, 09:18:23 pm
content: They are not 'copper lines', but linear openings in the solder mask. You can faintly make out the actual copper track and pad areas in your photos, and they are much larger than the pads.The purpose of these copper exposures, as mentioned, is to reduce the amount of solder that stays on the pad during wave soldering. Thus saving the manufacturer some money - significant over thousands of boards.

author: kalel
author_rank: Frequent Contributor
timestamp: December 03, 2017, 10:00:43 pm
content: I did not know what to call them. Thanks for the explanation.
Interesting article on the "second enclosure" of information + public domain - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: December 03, 2017, 03:20:00 pm
content: This is an essay: "The Second Enclosure Movement and the Construction of the Public Domain" by James Boyle.https://scholarship.law.duke.edu/cgi/viewcontent.cgi?article=1273&context=lcpI thought it was pretty good.
First all electronic calculator from 1963..... - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: December 01, 2017, 05:38:28 am
content: Holly Shit!!!Enjoy, watch it all!

author: @rt
author_rank: Super Contributor
timestamp: December 01, 2017, 05:45:19 am
content: Yeah, I saw that one pop up last night.. quite the machine

author: ataradov
author_rank: Super Contributor
timestamp: December 01, 2017, 06:09:46 am
content: https://www.eevblog.com/forum/projects/dave-check-this-out-(retro)/

author: BrianHG
author_rank: Super Contributor
timestamp: December 01, 2017, 08:28:13 am
content: Quote from: ataradov on December 01, 2017, 06:09:46 amWith the topic 'Dave Check this out...' can you blame me or anyone else reading this thread interested in calculator history to have missed such a device hidden in the """Dave check this out....""" thread?

author: BrianHG
author_rank: Super Contributor
timestamp: December 03, 2017, 03:04:47 pm
content: Ok, here is the count, in order of release...#1:https://www.eevblog.com/forum/projects/dave-check-this-out-(retro)/#2:https://www.eevblog.com/forum/chat/first-all-electronic-calculator-from-1963/#3:https://www.eevblog.com/forum/chat/cool-teardown-video-of-electronics-from-1963!/#4:https://www.eevblog.com/forum/chat/friden-ec-132s-calculator/How many more will there be???
Any advice on a hosting service that knows what they are doing? - Page 1
Forum section: electronics / general

author: Simon
author_rank: Unknown
timestamp: December 03, 2017, 10:41:31 am
content: I am looking for a new host. I currently pay £500 for a reseller account with heart internet in the UK but recently have had multiple failures of emails and they can't even tell me the correct new settings after moving my stuff around from broken servers. I have looked at 1&1, on the surface they look good but the internet is plastered with bad reviews about them.So basically i need to host 10 websites that have little traffic to them and preferably I'd like the new host to be able to transfer my current accounts over so that emails etc all stay in place. Any suggestions?

author: HighVoltage
author_rank: Super Contributor
timestamp: December 03, 2017, 10:49:41 am
content: I have been using dogado for 9 years nowhttps://www.dogado.de/ueber-uns/But I just looked and can not find a button for english language.They do have a reseller program and I have been very happy with them so far

author: DerekG
author_rank: Frequent Contributor
timestamp: December 03, 2017, 10:56:00 am
content: Simon, perhaps take a look at:https://www.homepageuniverse.com/resellers/They used to be called Servers And Domains.We have been using them for 6 years now. They are however based in the USA, so I'm not sure if that suits you.Emailed technical support comes in overnight to us in Australia which works well, but you can wait up & take advantage of their in-hours on-line chat service.Pricing is excellent.

author: Simon
author_rank: Unknown
timestamp: December 03, 2017, 11:04:23 am
content: well Uk based is best or at least europe based.

author: rob77
author_rank: Super Contributor
timestamp: December 03, 2017, 11:05:18 am
content: 10 webs with low traffic and mails ? why not to rent a virtual server, install ISPconfig there and host it there ? i'm hosting my stuff this way for 10+ years, first i did all the config manually but the last 2 years i'm using ISPconfig - it's very convenient and easy to create sites, mailboxes...etc...regarding migration - just copy your webs, dump/import the databases and sync the mails to the new mailboxes on the new server (try imapsync for th emails).

author: hammy
author_rank: Unknown
timestamp: December 03, 2017, 12:02:19 pm
content: https://www.df.eu/Positive experience since 8 years.

author: Simon
author_rank: Unknown
timestamp: December 03, 2017, 02:44:15 pm
content: I've dealt with these people thin the past for domains only, now they do hosting:https://www.lcn.com/cloud-servers#
Any Kiwis Fancy an Xmas Beer? - Page 1
Forum section: electronics / general

author: apelly
author_rank: Unknown
timestamp: November 26, 2017, 12:47:42 pm
content: Dangerous extra-envelope thinking here, I know, but I recall one time a couple of us ventured out for a sly bevy and it did turn out OK...If anyone's interested, I reckon this'd be a reasonable thread to co-ordinate it with.Yes?

author: brucehoult
author_rank: Super Contributor
timestamp: November 26, 2017, 01:05:14 pm
content: It's a deceptively big country ... depending on where the venue is it could be up to 2221 km and 31 hours of driving for others to get there (including possibly a ferry)Personally, I'll still be (at work!) in Moscow at NZ Christmas, but I'll be close to everywhere between Queenstown and Cape Reinga at some point during January. Google maps: Cape Reinga to Bluff

author: D3f1ant
author_rank: Frequent Contributor
timestamp: November 28, 2017, 06:01:41 am
content: I could be keen, depends on when and where.

author: Halcyon
author_rank: Unknown
timestamp: November 28, 2017, 06:12:17 am
content: Quote from: brucehoult on November 26, 2017, 01:05:14 pmJust come across the ditch! 3 hours from Auckland or Christchurch to Sydney ;-)

author: tautech
author_rank: Super Contributor
timestamp: November 28, 2017, 06:30:39 am
content: Quote from: apelly on November 26, 2017, 12:47:42 pmYeah apelly, why not.Last one was good, flux and all.BTW, have you any of that pallet load of flux left to entice punters along ?

author: hendorog
author_rank: Super Contributor
timestamp: November 28, 2017, 07:53:08 am
content: Keen.I've still got about 7.999 litres of flux left if anyone needs some

author: apelly
author_rank: Unknown
timestamp: November 28, 2017, 10:59:46 am
content: Addressing a couple of our noisy,Southern Monocularites, briefly: Obviously this'll be happening amongst the throngs of the commercial capital and most populous city.I wouldn't mind meeting in town, but I'm open to suggestions.Quote from: tautech on November 28, 2017, 06:30:39 amMore than you can imagine... It's in handier containers now too...You heard it here first, folks:Officially; more flux than you can handle, for just a single beer.All you have to do is show up. (And have a beer)

author: tautech
author_rank: Super Contributor
timestamp: December 03, 2017, 02:13:14 am
content: Bump for apelly !Soon we'll all be to busy to schedule this in.C'mon Kiwi's, hands up !