hybridfree/eevblog-posts huggingface dataset:
Electronics Aust. April 1974 - P.R.I.C. - Page 1
Forum section: electronics / general

author: GK
author_rank: Super Contributor
timestamp: October 22, 2018, 12:20:18 pm
content: I wonder how many people wrote to complain that their P.R.I.C. disintegrated only a minute into the brine soak? I can imagine some audiophile eager to discover what it sounds like

author: EEVblog
author_rank: Unknown
timestamp: October 22, 2018, 01:46:36 pm
content: Cut around the edge of your PRIC very carefully!

author: In Vacuo Veritas
author_rank: Frequent Contributor
timestamp: October 22, 2018, 02:02:38 pm
content: Really amazing that we forget about these breakthroughs from previous generations. I've printed out the page on a color laser printer and I am presently doing the saline soak phase. I don't know if I should use Kosher or table salt though, I'll find out.The power output of this opamp should be enough to drive my 1980s Bozart single speaker stereo system.

author: oldnewb
author_rank: Contributor
timestamp: October 22, 2018, 10:39:46 pm
content: Very well done. That may even beat the old Signetics write-only memory ad.https://web.archive.org/web/20110618174923/http://portal.national.com/rap/Story/WOMorigin.html

author: Cyberdragon
author_rank: Super Contributor
timestamp: October 23, 2018, 04:45:17 am
content: Quote

author: rob.manderson
author_rank: Regular Contributor
timestamp: October 24, 2018, 01:13:16 am
content: If I remember rightly, they advised holding it up to the light so you'd see 'April Fool'.

author: GK
author_rank: Super Contributor
timestamp: October 24, 2018, 11:59:03 am
content: Quote from: In Vacuo Veritas on October 22, 2018, 02:02:38 pmIf the saline soak is too harsh on your P.R.I.C., perhaps wine?https://www.theguardian.com/theguardian/shortcuts/2013/aug/06/peter-dowling-australia-sexting-penis-wine

author: GK
author_rank: Super Contributor
timestamp: October 24, 2018, 12:00:00 pm
content: Quote from: rob.manderson on October 24, 2018, 01:13:16 amLol, I just checked - yeah it does too. That was probably an effective legal disclaimer.

author: Brumby
author_rank: Unknown
timestamp: October 24, 2018, 12:14:34 pm
content: Dick Smith is my kind of guy.I remember the time he had an "iceberg" towed into Sydney Harbour. Classic.

author: EEVblog
author_rank: Unknown
timestamp: October 24, 2018, 12:31:10 pm
content: For those who haven't seen it, brilliant talk:MP3 version:http://traffic.libsyn.com/theamphour/Dick_Smith_-_Amateur_Radio_And_Adventure.mp3
The tape recorder no one wanted to see - Page 1
Forum section: electronics / general

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: October 24, 2018, 03:12:30 am
content: Saw this the other day, quite interesting. Looks like it was well built, very neat and clean design.

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 24, 2018, 03:31:10 am
content: There is a lot going on there. Especially for mid 80's or earlier.The TI voice chip for the time stamp on the second channel is impressive.-k

author: Richard Crowley
author_rank: Super Contributor
timestamp: October 24, 2018, 06:23:23 am
content: Of course, since they have a captive market who is eager to fork over large piles of our tax money, and likely not a huge sales volume, these things likely cost thousands of £€$ each.Not clear how (if?) it handles re-insertion of a cassette after being partly recorded. Surely it is not capable of reading existing time-stamps and resuming the timeline? Perhaps that is covered by use policy and the cassettes are one-and-done?As a colonial who watches many British police shows, these things seem ubiquitous across the kingdom. Dunno if they use similar gadgets here in the US? In the TV shows, it appears that announcing the date, time, and persons in attendance is left to the users. Perhaps the newer CD variety could use an actual NTP or GPS date/time stamp to provide automatic tagging, independent of human diddling.

author: IanMacdonald
author_rank: Frequent Contributor
timestamp: October 24, 2018, 08:50:39 am
content: Never,NEVERuse isopropyl alcohol on pinch rollers. In a few weeks or months the roller will swell up into a barrel shape, and start chewing-up tapes. Methylated spirit is OK.Where screw heads are damaged it's usually because someone's used the wrong driver in the past. These are Pozis, and using a Phillips driver on them will round off the splines in the head, because a Phillips bit has tapered sides whereas Pozi is straight-sided. The best way to deal with them once damaged is to grip the head very firmly in a large pair of sidecutters. This will form a groove in either side of the head. You can then turn the screw by gripping this groove. (Obviously you are going to replace the screw anyway so damage is unimportant)There are also JIS screws with a third different profile, but these will work OK with a No1 Pozi if you don't have a JIS driver.
Can anyone help identify this connector for me please? - Page 1
Forum section: electronics / general

author: danielbriggs
author_rank: Regular Contributor
timestamp: October 23, 2018, 11:14:54 am
content: Hello all!Can anyone help me identify this connector please?It looks familiar, but I don't have a clue which series it is or where to go for mating connectors.https://www.aliexpress.com/item/Mini-PBCswitch-module-PBC-OEM-module-mini-size-4-Ports-Network-Switches-Pcb-Board-mini-ethernet/32893683228.htmlIt's from a Chinese supplier, and the item is an "OEM 4 port network switch", which I want to integrate into a small run of boards I'm making.Can anyone advise a suitable mating connector? I'd be terribly grateful.All the best,Dan

author: r0d3z1
author_rank: Regular Contributor
timestamp: October 23, 2018, 12:11:09 pm
content: They looks like Molex picobladehttps://za.rs-online.com/web/p/pcb-headers/5427157/

author: GlennSprigg
author_rank: Super Contributor
timestamp: October 23, 2018, 12:32:31 pm
content: Quote from: r0d3z1 on October 23, 2018, 12:11:09 pmYes, they are !!You can see the 2/3/4/5 pin (Socket) plugs from their site.... (now edited)...SELECT ALL OF THE FOLLOWING, INCLUDING THE LAST PART NOT UNDERLINED!!...https://www.molex.com/molex/products/listview.jsp?query=&path=%2Binmeta%3Acategory%3DCable%252520Assemblies%26partialfields%3D%28productname%3APicoBlade*%252520OTS%29&channel=products&key=picobladeOr you can get their range cheaply from eBay...https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1311.R1.TR1.TRC0.A0.H0.XMolex+picoblade.TRS0&_nkw=molex+picoblade&_sacat=0

author: danielbriggs
author_rank: Regular Contributor
timestamp: October 23, 2018, 01:05:15 pm
content: You guys are the best - thank you so much!
Gallium vs. aluminum - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 23, 2018, 03:13:22 am
content: random find but pretty interesting

author: digsys
author_rank: Unknown
timestamp: October 23, 2018, 06:04:43 am
content: Mercury has a very similar effect on Aluminium as well, possibly even more dramatic. Back in high-school (when handling mercury was no big deal :-)),we would rub it on all sorts of Al surfaces, and come back the next day to a powdery mess :-) I also learned to love the cane ...

author: coppercone2
author_rank: Super Contributor
timestamp: October 24, 2018, 08:04:42 pm
content: I always wanted to build a hydrogen generator that uses galium/aluminum alloy thats hydrated some how

author: Gyro
author_rank: Super Contributor
timestamp: October 24, 2018, 08:20:25 pm
content: Quote from: digsys on October 23, 2018, 06:04:43 amWhen I was a kid, I salvaged some mercury from a glass mercury switch. The only thing I had to hand to put it in was the Aluminium can from an old dismantled fluorescent lamp starter. I put it on the shelf in my bedroom overnight and was greatly surprised to wake up to a mass of fine, white Aluminium oxide 'pencil sharpenings' emerging from the top next morning!I was really lucky the Mercury didn't eat its way through the thin Aluminium can overnight - it would have gone everywhere (carpet and all), and I doubt I would have had the courage to tell my parents. I'd have ended up living in mercury vapor hell.

author: nfmax
author_rank: Super Contributor
timestamp: October 24, 2018, 08:51:20 pm
content: Some titanium alloys will resist Gallium perfectly OK, even at high temperatures. Stainless steels also have problems. D. G. Kolman, J. F. Bingert, and R. D. Field, ‘The microstructural, mechanical, and fracture properties of austenitic stainless steel alloyed with gallium’, Metall and Mat Trans A, vol. 35, no. 11, pp. 3445–3454, Nov. 2004.https://link.springer.com/article/10.1007/s11661-004-0181-x

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 25, 2018, 02:59:39 am
content: Only have one thing to say to that.Tim
Spooky Datasheets! - Page 1
Forum section: electronics / general

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 22, 2018, 02:38:40 pm
content: http://www.vishay.com/docs/69685/dg4051e.pdfPage 11, schematic. Scary!Tim

author: Benta
author_rank: Super Contributor
timestamp: October 22, 2018, 02:46:21 pm
content: Hahaha! And the data sheet is from April, though not April 1st.

author: daqq
author_rank: Super Contributor
timestamp: October 22, 2018, 05:45:15 pm
content: They're everywhere!

author: Pack34
author_rank: Frequent Contributor
timestamp: October 22, 2018, 05:50:53 pm
content: I looked at that way too long before I saw it...

author: coppercone2
author_rank: Super Contributor
timestamp: October 22, 2018, 07:00:03 pm
content: do any of those vishay switches have better performance then AD ones?I used them before pretty much because they were cheaper.Speaking of creepy:https://www.analog.com/en/design-center/reference-designs/circuit-collections/dead-zone-generator.html

author: SilverSolder
author_rank: Super Contributor
timestamp: October 22, 2018, 07:26:55 pm
content: LOL, ready for Halloween!

author: schmitt trigger
author_rank: Super Contributor
timestamp: October 22, 2018, 08:57:31 pm
content: You want a REAL dead zone generator?Use any opamp who has blown its output bonding wire, a.k.a., let the magic smoke out.

author: amyk
author_rank: Super Contributor
timestamp: October 23, 2018, 01:55:55 am
content: It's patented... by Maxim:https://patents.google.com/patent/WO1999041836A1/en
Coordinating industrial equipment shipping after won on ebay...... - Page 1
Forum section: electronics / general

author: Smokey
author_rank: Super Contributor
timestamp: October 17, 2018, 10:51:38 pm
content: While this instance isn't electronics exactly, the topic is relevant for anyone who may be looking to buy large things and have them shipped when the seller doesn't want to do it.Here is my present situation. There is a piece of industrial kitchen equipment up on ebay for local pickup only. It's in Greensboro, North Carolina and I am in Los Angeles. The thing is about 70lb and 30in x 22in x 15in total. The seller doesn't want to do any sort of shipping. The price is really good so I'm looking into alternate freight shipping methods.What are my options? Would I have to find some local to him company to crate and ship it or can national shippers like UPS or DHL do both the crating and the shipping?

author: Tony_G
author_rank: Super Contributor
timestamp: October 18, 2018, 01:16:13 am
content: I've used Fast Track Logistics many times and would recommend them. One downside is that they don't have picking services everywhere.Might be worth giving them a shothttps://www.fasttracklogistics.net/TonyG

author: Stray Electron
author_rank: Super Contributor
timestamp: October 18, 2018, 01:51:01 am
content: IF the seller is willing to drop it off at a UPSstore, they'll pack it and ship it but be warned that those stores are privately owned and they can anything that they want and in my experience, they chargedoublethe normal UPS rate for shipping and they also charge big dollars for packing so it won't be cheap. They charged me just over $100 to pack and ship an HP 9825 and that was over 25 years ago! For anyone that cares, I bought Steve Leibson's personal 9825.

author: Smokey
author_rank: Super Contributor
timestamp: October 18, 2018, 11:34:02 pm
content: Cool. That's good feedback. I have a RFQ for fast track logistics and I'm seeing if the guy is willing to drop the thing off at a UPS store. I'll keep you posted on what the costs of those things are when I know.

author: Smokey
author_rank: Super Contributor
timestamp: October 22, 2018, 08:27:00 pm
content: Update.Fast track logistics no bid me.UPS store charges 200usd (for both pack and ship) if I can somehow get it to the store. Talking with seller to see if he will at least drop it off.

author: Tony_G
author_rank: Super Contributor
timestamp: October 23, 2018, 01:44:15 am
content: Quote from: Smokey on October 22, 2018, 08:27:00 pmMy apologies on that, I should have pointed out that Fast Track are a freight broker. They'll handle getting the stuff shipped (e.g. Ohio to Washington State) but packing outside of a few locations is up to you or the seller. I've used them many times to get stuff from place to place but sometimes I have to arrange my own packing. I've always gotten great rates though.TonyG
Very strange-ish-particular question... about SMT/SMD devices - Page 1
Forum section: electronics / general

author: JonathanHerr
author_rank: Contributor
timestamp: October 22, 2018, 04:50:42 am
content: More specifically, a manufacturer of some SMT/SMD devices.I remember coming into possession a few dead-PCBs, with surface mount components on them, but honestly, I'd never seen ones with the particular markings I saw. The font on the IC was basically one row of text, text that looked like something akin to 7-segment displays, except.. not seperate-segments. like.. 74F00 would basically be like..Code:*** * * *** *** **** * * * * * * ** *** ** * * * ** * * * * * ** * * *** ***These chips were fairly old, and of a 74XX variety (glue logic)... What I really liked about these chips was that font, and I kinda wish i could buy new-old-stock of these chips, so i don't have to risk damaging the chips as i remove them from these castoff boards, and/or not have certain chips at my disposal (since they'd not be ones that I had on hand)I know its a rather random question, but i figured i'd at least ask, and see what other people might know.

author: Whales
author_rank: Super Contributor
timestamp: October 22, 2018, 05:58:50 am
content: Dot matrix?https://cdn4.explainthatstuff.com/dot-matrix-printout.jpg

author: TomS_
author_rank: Frequent Contributor
timestamp: October 22, 2018, 08:32:08 am
content: Quote from: Whales on October 22, 2018, 05:58:50 amI dont think thats the question hes asking...

author: PointyOintment
author_rank: Frequent Contributor
timestamp: October 22, 2018, 11:07:50 am
content: Photo?

author: JonathanHerr
author_rank: Contributor
timestamp: October 22, 2018, 08:00:14 pm
content: Clarification: the lettering on top of the ICs is rather. 'bright' (as in a very white ink/brightly inked) and akin to a 7-segment display that's segments ends are connected. (I only did the 'code' segment up there to show that the the rough shape of the lettering on top of the ICs is squareish instead of rounded. (e.g. a zero looks like a rectangle, (like how it is on a 7-segment display), instead of a rounded ovoid.)
Sourcing long flexible arm  - Page 1
Forum section: electronics / general

author: crispus
author_rank: Regular Contributor
timestamp: October 22, 2018, 11:54:05 am
content: Hi everyone,I am looking for a couple of meters of flexibile arm in order to use it for a custom lamp. Either couple of meters or couple of pieces at least 80 cm.Something like this:Thanks!

author: Marco
author_rank: Super Contributor
timestamp: October 22, 2018, 12:24:51 pm
content: Aliexpress?

author: cdev
author_rank: Super Contributor
timestamp: October 22, 2018, 12:46:18 pm
content: "gooseneck" is a phrase thats used here in 00 land that may be helpful.Maybe try "gooseneck lamp" on Aliexpress?

author: crispus
author_rank: Regular Contributor
timestamp: October 22, 2018, 01:35:52 pm
content: Thank you. Gooseneck does the trick
Quick questions about ambient temp sensor - Page 1
Forum section: electronics / general

author: Kazikiel
author_rank: Newbie
timestamp: October 20, 2018, 03:45:56 pm
content: I have a quick question that im hopeing for a bit of help solving. I swaped the stock gm rearview mirror with one from a Nissan. it allows me to have the home link garage door opener. however my issue now is that the ambient temp is reading way off now. For example on a day where its 50 degreeds F outside. the sensor reads negative 14 degrees F. its always the same amount difference and I know its because the value that the gm sensor operates vs that of the Nissan sensor. I did try the sensor from a Nissan but it didn't help. is there a way I can use a resistor inline with the sensor to correct it? or other sugestions?
how long do facebook videos take to get reviewed for ads  - Page 1
Forum section: electronics / general

author: nvidia
author_rank: Regular Contributor
timestamp: October 20, 2018, 01:13:24 am
content: just hit over 11k likes on my facebook page and over 12k followers now im able to put ads on any video over 3mins but all my videos for the last couple of days say this video is pending reviewanybody know how long this would takesucks i have to wait for videos to be reviewed because by the time they are reviewed just about everybody who liked my page would have already seen the video and i will get next ad money as after the first couple of days hardly anybody watches my videosbecause on facebok my videos can get like 2000+ views up yo 48k views
Reliance on a CM for testing in a medium-low volume process? - Page 1
Forum section: electronics / general

author: Pack34
author_rank: Frequent Contributor
timestamp: October 19, 2018, 04:19:46 pm
content: To define quantity, this is maybe 400-500 eaches a month.To define the situation, the CM has test fixtures that they validate that the PCBAs are assembled properly to some arbitrary standard (the CM designed the fixtures). During final assembly, everything is assembled into the product and functionally tested. If some issue occurs the technicians on the line track down the suspect part, replace, and send it back to the CM for review. After this, they'll rework the board if they find an assembly issue and if not, the board is scrapped.I can't help but feel that the process here is missing steps. All the information that I'm really getting is that there was an issue with a board and some high-level description of the potential failure. Such as: Board didn't power-up, Board powered-up but was unresponsive, Board powered-up and was responsive but didn't output the correct signals.Shouldn't the process flow something like this?1. PCBA flagged as suspect on the line2. PCBA replaced and product shipped3. PCBA disposed to engineering for review3a. Thorough visual inspection of part3b. Replication of failure mode using a functional test fixture3c. Low-level test fixture analysis (meaning the board is flashed with a test firmware to throttle all I/O and power cycled)3d. Issue is isolated, reported, and a determination is made to queue for a design improvement if neededNow, I'm coming from essentially "starving start-ups" and still adjusting to larger volume processes, but I'm having difficulty advising on the disposition of materials if I don't have access to the parts nor any thorough FA notes.What's the typical process seen here at this level of volume? Is it typical to offload so much to the CM? It feels that vital information is lost by an over-reliance on the CM that could direct robustness and reliability improvements.
World's fastest camera - Page 1
Forum section: electronics / general

author: joeqsmith
author_rank: Super Contributor
timestamp: October 19, 2018, 11:22:20 am
content: In 2012, we were able to see that 1 trillion FPS system. Now in 2018, we have this:https://phys.org/news/2018-10-world-fastest-camera-trillion.html

author: Zero999
author_rank: Super Contributor
timestamp: October 19, 2018, 12:19:00 pm
content: It would still need a very bright light to work.
Keysight Labs subscribed to my YouTube channel - Page 1
Forum section: electronics / general

author: Tony_G
author_rank: Super Contributor
timestamp: October 23, 2018, 04:54:53 pm
content: Can I take a moment to say that this is really cool?Of course it could be a mistake but when I saw this come through I was pumped - I guess all those old HP and Agilent equipment overview and repair videos paid offAnyway back to your regular programming.TonyG

author: kizmit99
author_rank: Regular Contributor
timestamp: October 24, 2018, 12:47:50 am
content: Congrats!

author: LapTop006
author_rank: Unknown
timestamp: October 24, 2018, 03:39:46 am
content: Clearly now's a good time to ask for viewer appreciation donations

author: bitseeker
author_rank: Super Contributor
timestamp: October 25, 2018, 12:00:20 am
content: Quote from: Tony_G on October 23, 2018, 04:54:53 pmThat is really cool, Tony. Congrats! You certainly have been building quite a library of HP T&M vids.
AHEF Advanced Extremely High Frequency Satellite - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 17, 2018, 02:46:43 pm
content: Interesting..........20 and 44 Ghzhttps://www.space.com/41819-atlas-v-launches-jam-resistant-aehf4-military-satellite.htmlWiki...https://en.wikipedia.org/wiki/Advanced_Extremely_High_Frequency
Unboxing 500 IP Cameras for eWaste Destruction - Page 1
Forum section: electronics / general

author: xrunner
author_rank: Super Contributor
timestamp: October 17, 2018, 12:33:42 am
content: So much waste in the world a shame.

author: Mr. Scram
author_rank: Super Contributor
timestamp: October 17, 2018, 01:52:22 am
content: Boy does this guy love to hear himself talk. Get to it!

author: station240
author_rank: Unknown
timestamp: October 17, 2018, 09:01:57 am
content: Probably defective in some way, that is what the scrapper thinks and I believe him.Wait till you guys find the video where he scraps a couple of old scopes.Australia is not big on trying to sell/give away low value items. So something I'd pay $5 for becomes $1 worth of scrap.Something I'd take for free, he has to pay to get rid of.If I lived next door to someone like this I could just pick out a few bits and pieces I need, and have the rest of the board back.
Diode.Zone - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: October 17, 2018, 02:00:37 am
content: https://diode.zone/Started by ScanLime apparentlySome sort of "instance" of Peertube.Not sure I understand it, and it seem you can't create accounts, but it's a video space for electronics oriented content?

author: NiHaoMike
author_rank: Super Contributor
timestamp: October 17, 2018, 02:14:47 am
content: I recall you just have to ask her if you want to create an account. I'm not sure if she wants something as big as EEVblog on the server as of now, I think she prefers a more gradual ramp up.

author: EEVblog
author_rank: Unknown
timestamp: October 17, 2018, 03:59:52 am
content: Quote from: NiHaoMike on October 17, 2018, 02:14:47 amI'm pretty sure she wouldn't want my content there period, we don't exactly get on
Large Scoreboard/Countdown Display (Buy or Arduino?) - Page 1
Forum section: electronics / general

author: metrologist
author_rank: Super Contributor
timestamp: October 16, 2018, 08:37:01 pm
content: We are looking to count down days, something like 3-6 months, perhaps something like DDD:HH:MM or larger days on top and HH:MM below. Something that would work on a basketball court, say 20-30cm character size.OTS would probably be OK if not too expensive.Or if there is a large display that could work easily with Arduino, then I'd be willing to program that. My skills are so-so in that context though, but I imagine there is a library that makes a larger dot matrix display doable?Are there such large dot-matrix displays or a commercial product that could fit the bill? Of course I searched and the ones I saw did not really seem to fit the function or if they did it was not very clear.

author: james_s
author_rank: Super Contributor
timestamp: October 16, 2018, 08:45:02 pm
content: This seems like something that would be easy to build. Certainly if you can make it work on a small scale using any sort of LED display you have on hand, then you can easily scale it up to as large as you need. You can make large to huge digits easily out of arrays of lamps or LED strips or individual power LEDs with suitable diffusers.
Do the robot dance! - Page 1
Forum section: electronics / general

author: apis
author_rank: Super Contributor
timestamp: October 16, 2018, 12:04:11 pm
content: Courtesy of DARPA*.We all know how that is going to end.* Defense Advanced Research Projects Agency

author: Gromitt
author_rank: Regular Contributor
timestamp: October 16, 2018, 02:17:40 pm
content: You who have Netflix.'Black Mirror' series 4 episode 5 'Metalhead'https://en.wikipedia.org/wiki/Metalhead_(Black_Mirror)https://youtu.be/xejjA2AFO5IYou cant see them in the trailer, but they are there.

author: GreyWoolfe
author_rank: Unknown
timestamp: October 16, 2018, 02:19:46 pm
content: That was awesome!
RIP Paul Allen - Page 1
Forum section: electronics / general

author: bsudbrink
author_rank: Frequent Contributor
timestamp: October 15, 2018, 11:16:59 pm
content: Paul Allen has died:https://www.king5.com/article/news/local/microsoft-co-founder-paul-allen-dies-at-65/281-604572895

author: bob225
author_rank: Frequent Contributor
timestamp: October 16, 2018, 09:10:07 am
content: The link doesn't work for me - some alternativeshttps://www.bbc.co.uk/news/world-us-canada-45871379https://edition.cnn.com/2018/10/15/tech/paul-allen-dead/index.html
Forum Text formatting? - Page 1
Forum section: electronics / general

author: Chris56000
author_rank: Frequent Contributor
timestamp: October 14, 2018, 07:42:20 pm
content: Hi!For some reason all the text and headings is being displayed as centre-justified (all words centred around the middle of the column) which makes posts a lot harder to read!Is there a setting to alter which makes everything "Left-Justified" as the test always used to display?My browser is Google Chrome.Many thanks,Chris Williams

author: tautech
author_rank: Super Contributor
timestamp: October 14, 2018, 08:28:35 pm
content: Quote from: Chris56000 on October 14, 2018, 07:42:20 pmLooking back at a few of your posts they all display as they should for me.W10, Chrome browser.Must be some local setting problem.

author: chhrisedwards
author_rank: Contributor
timestamp: October 15, 2018, 01:34:24 pm
content: Quote from: Chris56000 on October 14, 2018, 07:42:20 pmTo be true, I didn't get your question exactly. But, In my system also all the text is left aligned by default. To change the alignment of text there is option available in the formatting toolbar above the text box.

author: TimNJ
author_rank: Super Contributor
timestamp: October 16, 2018, 01:14:47 pm
content: Try clearing the browser cache. I've seen weird formatting issues go away with a browser cache clear.
Anyone care to explain the nuts n bolts of the  US/China tariff situation? - Page 1
Forum section: electronics / general

author: djacobow
author_rank: Super Contributor
timestamp: October 16, 2018, 01:17:14 am
content: I"m US-based and have been using Chinese PCBA to build some cool stuff. Now that the tariffs are kicking in, I'm trying to understand what the damage is going to be.Scenario 1. I'm in the US, PCBA is in PRC, and the PCBA procures parts. Most of the BOM is western-branded parts from US distributors but really I have no idea where the parts really come from -- I assume some are from China. Is it correct to expect that (if the PCBA procures) they will pay a 30% Chinese tariff on the parts and when they ship to the US I will pay a 30% US tariff on the entire completed assembly? Or will that latter be minus what was paid for the parts (and their tariff)?Scenario 2. I'm in the US, PCBA is in PRC, but I buy parts myself from US distributors and consign to the PCBA for my order. Does that mean I pay a 30% US tariff on the parts I bought (if they were made in China) and then the Chinese may apply a 30% Chinese tariff on the parts when they are imported to China, and then I might pay another 30% US tariff on the completed assemblies?Sorry, I'm all mixed up, so maybe the question isn't even right.

author: xaxaxa
author_rank: Regular Contributor
timestamp: October 16, 2018, 01:26:26 am
content: it really depends on how religious you are about parts being "genuine" and shit; most PCBA houses in CHina will source from local market which includes smugglers so they would be dodging china's tariffs. Shenzhen market parts are perfectly fine if you have proper statistical QA and testing processes. If you don't, then even digikey can fuck you over and then they will just say "it's a mistake" or blame it on the upstream supply chain.If you source your parts and send it to them, then it's a matter of luck whether customs will delay your shipment (or even reject it). I think you'll have a better luck declaring a low value, making the package small and inconspicuous, and declaring it as toys or some shit.

author: xaxaxa
author_rank: Regular Contributor
timestamp: October 16, 2018, 01:33:02 am
content: and yes if someone is uninformed enough to declare the correct value when sending parts to china then it will be hit with high tariffs; in china the saying is "obey the law and get screwed" or so it goesPersonally I prefer having the PCBA house source the parts and leave the smuggling to someone else.
physical electronics work - Page 1
Forum section: electronics / general

author: jose347
author_rank: Contributor
timestamp: October 09, 2018, 03:22:44 pm
content: Hi I am an electrical engineer currently working in the integrated circuit design world, work has become slow for me lately, so I have been supporting others groups in the electronics fields,I have noticed that most of the jobs in my company are strictly computer related, there is no lab work no physical interaction with your circuit, I have been looking at jobs and the only things that I have found working bench type works are electronic technician which really aren't engineers, my questions is which type of work(position) is it if any for an engineer that actually have a physical interaction with the electronics(psu, oscilloscope or lab work related)?

author: Benta
author_rank: Super Contributor
timestamp: October 09, 2018, 04:01:27 pm
content: Power electronics and RF. Two typical cases where simulation only can get you so far. Lots of lab work involved.

author: ajb
author_rank: Super Contributor
timestamp: October 09, 2018, 04:59:05 pm
content: Smaller companies in general are more likely to have hands-on designers. But that also comes with other tradeoffs, like having to help put out fires in production/support more often.

author: coppercone2
author_rank: Super Contributor
timestamp: October 10, 2018, 01:09:36 pm
content: Quote from: ajb on October 09, 2018, 04:59:05 pmyes, at a small company expect that one of your duties as a design engineer will sometimes be to help production, especially if you know how to use the tools. That means testing a few products sometimes, and having to write procedures, rather then pure design, unless I imagine your really lucky. But you need to like, analyze the situation to make sure your not being given labor that interferes with a product release or other orders.. kind of juggling alot in a smaller company that gives you more roles. But also if their doing that, there wont be money available for nice test equipment (the whole point of using you this way is to save money on another employee) or lots of experiments.. you have to justify it more.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: October 12, 2018, 01:30:47 am
content: In big companies guys in the test and evaluation side of the business often get their hands dirty. The trade is that the only design experience they get is for test jigs and the like. Might be pretty sophisticated, but most folks want to design the out the door stuff.

author: srce
author_rank: Regular Contributor
timestamp: October 12, 2018, 08:42:21 am
content: If you are an IC designer, why not try to get involved with bring-up and characterisation of your ICs?

author: jose347
author_rank: Contributor
timestamp: October 15, 2018, 06:18:45 pm
content: We don't have the equipment, work is done remotely of the location of the company, so we only provide the service related to design.
$4 dollar smoke detector teardown (with schematic)  - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 15, 2018, 11:11:11 am
content: Torch your home for $4. (with schematic)bigclivedotcomPublished on Oct 14, 2018Posted 10/15/2018

author: chickenHeadKnob
author_rank: Super Contributor
timestamp: October 15, 2018, 06:21:15 pm
content: Click bait misleading title from Big Clive - Should be called $4 dollar smoke detector teardown. Very interesting nonetheless.

author: Photon939
author_rank: Regular Contributor
timestamp: October 15, 2018, 06:26:13 pm
content: Quote from: chickenHeadKnob on October 15, 2018, 06:21:15 pmWithout a functional low battery alarm I would say it's absolutely not clickbait. Those things are trash if they have no way of alerting for a dying battery.

author: chickenHeadKnob
author_rank: Super Contributor
timestamp: October 15, 2018, 06:29:01 pm
content: Quote from: Photon939 on October 15, 2018, 06:26:13 pmSure the device isn't reliable, but from the title I was expecting the unit being torn down would be the fire starter.
Why their is change in calculated and simulated frequency? - Page 1
Forum section: electronics / general

author: radhika
author_rank: Regular Contributor
timestamp: October 15, 2018, 04:59:07 am
content: Hello,I am using PIC18F4520 microcontroller and building PWM.According to this code:void main(void) {CCP1CON = 0; //Clear CCP1CON registerPR2 = 12; //19.5VCCPR1L = 9; //81.025% Duty CycleTRISCbits.TRISC2 = 0; //Make PWM pin an outputT2CON = 0x01; //Timer 2CCP1CON = 0x3C; //PWM Mode, 11 for DC1B1:DC1B2TMR2 = 0; //Clear Timer 2T2CONbits.TMR2ON = 1; //Turn ON Timer 2while(1){PIR1bits.TMR2IF = 0; //Clear Timer 2 Flagwhile (PIR1bits.TMR2IF == 0); //Wait for end of period}}And the calculation of PR2, i.e. PR2 = 8M/(38K* 4 *4) - 1 where 8M is crystal frequency and 38K is fpwm frequency. and 4 is prescaler.And after simulating I got result for half of the frequency as shown in this linked imagehttps://postimg.cc/bDmWDq40i.e. 20kHz. But why? Why I am not getting result for 38kHz?
Size of semiconductor companies - Page 1
Forum section: electronics / general

author: Pack34
author_rank: Frequent Contributor
timestamp: October 12, 2018, 04:39:12 pm
content: I was randomly curious about how big some of these companies are. For example, Microchip, ST, etc and was surprised by how small they're reported as being on LinkedIn. TI and NXP are in-line with what I was expecting.

author: rstofer
author_rank: Super Contributor
timestamp: October 12, 2018, 04:47:51 pm
content: Big in what way? Sales revenue, factories, chips sold per year, headcount, sales offices? For all US companies you can get anything you want from their annual reports.Here is a summary of Intel's 2d Qtr 2018 report - sales of $17 billion for the quarter so somewhere around $68 billion for a year. It's up 15% year over year.

author: Pack34
author_rank: Frequent Contributor
timestamp: October 12, 2018, 10:52:10 pm
content: I meant headcount wise. With the vast portfolio that Microchip has, I think it's a bit amazing that they're doing all that with 5,000 people.

author: PTR_1275
author_rank: Frequent Contributor
timestamp: October 13, 2018, 01:57:41 am
content: The wiki page for microchip says 18,000 employees. I don’t think either LinkedIn or Wikipedia would be a reliable source without some sort of reference, but I’d trust the wiki figures more

author: rstofer
author_rank: Super Contributor
timestamp: October 13, 2018, 02:28:04 am
content: Quote from: Pack34 on October 12, 2018, 10:52:10 pmI would bet that their chips are made in a contract foundary in Taiwan or China. Those workers wouldn't show up in headcount.

author: Nauris
author_rank: Regular Contributor
timestamp: October 13, 2018, 02:22:07 pm
content: Quote from: rstofer on October 13, 2018, 02:28:04 amThey actually have three wafer fabrication plants in USA and two test and assembly plants in Thailand and Philippines, so quite many workers included in their headcount.

author: rstofer
author_rank: Super Contributor
timestamp: October 13, 2018, 02:35:51 pm
content: Quote from: Nauris on October 13, 2018, 02:22:07 pmThe right answer for Microchip is in their annual report: 14,234 employees as of March 31, 2018. I don't know if that includes the 4,800 they picked up when they bought MicroSemi (probably) but it does include the Atmel employees.https://www.microchip.com/sec/annual/FY18/Form%2010-K%20filed%205-18-2018.pdfIt's all in there! It just turns out to be in the 'least usable form' spread over 131 pages.

author: PointyOintment
author_rank: Frequent Contributor
timestamp: October 14, 2018, 03:46:32 pm
content: Quote from: rstofer on October 13, 2018, 02:35:51 pmQuote from: PTR_1275 on October 13, 2018, 01:57:41 amFixed
Geek/Math candy. - Page 1
Forum section: electronics / general

author: paulca
author_rank: Super Contributor
timestamp: October 12, 2018, 06:56:53 pm
content: http://orbit.medphys.ucl.ac.uk/Learn orbital mechanics while going, "Oh look Wow, that's so pretty!"Been playing this for a long while. As a casual Friday night challenge, it was off to the ISS from Kennedy and back. Managed to get into "normal flight" about 10 miles North of the runway and with my joystick disconnected, I choose a hover approach, right onto the numbers.Allows you see the detail NASA et.al. go to, but realise that ball park works so well, just less efficient.Rendezvous (with the ISS) is probably the hardest thing to wrap your head around. 80% of intuitive goes out the window, you just have to know which 20% to trust.

author: Tedro
author_rank: Unknown
timestamp: October 12, 2018, 08:48:36 pm
content: NOTE: This message has been deleted by the forum moderator Simon for being against the forum rules and/or at the discretion of the moderator as being in the best interests of the forum community and the nature of the thread.If you believe this to be in error, please contact the moderator involved.An optional additional explanation is:
[SOLVED] Hantek tech support board is hacked?  - Page 1
Forum section: electronics / general

author: MasterT
author_rank: Frequent Contributor
timestamp: October 10, 2018, 06:11:26 pm
content: I can't logging to hantek tech support forum athttps://www.eediscuss.com.First, there is warning message :QuoteThan, trying to log in via unsafe path, I'm getting 503 http error.For some unknown reason, logging session is re-routed throw lemontreex.com web-site , that by itself looks suspicious.https://account.lemontreex.com/account/login?returnUrl=https://www.eediscuss.comDoes everyone has the same issue, or it's just me?

author: amyk
author_rank: Super Contributor
timestamp: October 11, 2018, 12:41:49 am
content: Code:---- Certificate Errors ----SSL Verify: [0:18] self signed certificateCertificate's host name (CN) doesn't match the site's---- Certificate Info ----C=USST=SomeprovinceL=SometownO=noneOU=noneCN=localhost/emailAddress=webmaster@localhostBegins:2015-01-20 07:00 GMTExpires:2042-06-06 07:00 GMTThat doesn't look right to me either.

author: tsman
author_rank: Frequent Contributor
timestamp: October 11, 2018, 01:08:48 am
content: It is just a mess. The Hantek site say to use hantek.org on their contact page but eediscuss.com on the toolbar at the top. eediscuss.com has recently had the whois details changed but the details match up with what what used to be visible on hantek.com. lemontreex.com looks to be Hantek running an online store with a weird name though.There are commented out links to it on the main Hantek site so if somebody did hack eediscuss.com then they also did hantek.com which is hosted on a completely different server. There are old posts on eediscuss.com that link to files stored on lemontreex.com as well.The certificate error looks to be a configuration issue. Most Linux distributions will generate a local certificate at installation.I don't think it is hacked but I wouldn't trust it.

author: MasterT
author_rank: Frequent Contributor
timestamp: October 13, 2018, 06:09:14 pm
content: I received an e-mail from support@hantek.com saying that issue was solved.Indeed, I could log-in to eediscuss over https, and was able to post my question over-there.Still, I don't fill confident, as I can't reach hantek.com primary web-site using https. Firmware updates downloadedover common http, w/o md5 or any other means to verify integrity of the software package makes me suspicious. I see significant performance degradation after last update FW, and can't roll back to old version.
Linesmen bolting onto utility poles ? - Page 1
Forum section: electronics / general

author: lordvader88
author_rank: Frequent Contributor
timestamp: October 12, 2018, 04:12:21 am
content: I've been watching videos of linesmen bolting various stuff like transformers, onto poles.They used 2 bolts for typical transformers, and in NONE of the videos, training or real world, did they re-tighten the 1st bolt, after they did the 2nd 1 all the way.I found that alarming, because they also weren't really both hand tight to start with, I mean they just tightened 1 all the way, then the 2nd, and that's it.

author: Mr. Scram
author_rank: Super Contributor
timestamp: October 12, 2018, 04:44:53 am
content: Quote from: lordvader88 on October 12, 2018, 04:12:21 amAre they screwing or bolting into wood? Because wood tightens around or against screws over time due to moisture and other effects. Depending on the construction that may help things. I can also imagine that the little bit of give wood has means that you can tighten a screw with a little bit of back pressure, a bit like a spring washer.

author: lordvader88
author_rank: Frequent Contributor
timestamp: October 12, 2018, 05:09:33 am
content: wooden poles yeah, but still I find it funny, since if I put anything back together, I always check screws/nuts/etc at the end again.Also I can imagine the metal bending a bit if 1 side is super tight, then tightening the other end from start to all the way.Actually looks like fun tho, I think I remember the rope rigging and hoisting/etc and stuff. Now I want an excuse to try climbing and rigging something. But on a very calm warm day.

author: rstofer
author_rank: Super Contributor
timestamp: October 12, 2018, 03:07:43 pm
content: And yet, have you ever seen anything fall off? It doesn't happen.The reason they don't go back and re-tighten is that they got the bolts tight the first time. More seriously, they aren't clamping rigid bodies. The brackets will deform such that no further tightening is required. And the wood will deform somewhat.

author: Nusa
author_rank: Super Contributor
timestamp: October 12, 2018, 05:37:45 pm
content: Even if both bolts were not-quite-tight, one would still have to LIFT the 300+ lb transformer a couple inches to unhook it from the bolts.
Google+ going negative, at last. - Page 1
Forum section: electronics / general

author: TerraHertz
author_rank: Super Contributor
timestamp: October 09, 2018, 01:28:04 am
content: Google+ shutting down after Google spent last 7 months covering up a user data vulnerability that went unfixed for three years.https://techcrunch.com/2018/10/08/google-plus-hack/https://www.reddit.com/r/The_Donald/comments/9mih7w/google_shutting_down_after_google_spent_last_7/YES!! Die Google+, die in a fire! I hated it from the moment that abomination spawned, and google did their best to force everyone into it by making it a requirement for youtube. As evidence I submit my G+ avatar from the start:http://everist.org/pics/misc/Gplus_avatar.jpgExtra ironic and evil since Google has been leading the charge to force everyone to register via their real names online. You want to have some random nic on youtube or anywhere really, with no traceback? Sorry, not allowed. And now it turns out they were effectively doxing everyone. Deliberate? I bet it was.

author: Red Squirrel
author_rank: Super Contributor
timestamp: October 09, 2018, 01:46:27 am
content: About 4 people will be affected by this.

author: TerraHertz
author_rank: Super Contributor
timestamp: October 09, 2018, 01:54:14 am
content: Quote from: Red Squirrel on October 09, 2018, 01:46:27 amEstimates vary wildly. Some say as many as 12 users.But actually if you gave a gmail account you have a G+ account too, and are affected.

author: rjp
author_rank: Regular Contributor
timestamp: October 09, 2018, 01:58:19 am
content: and you need a gmail account to sign into your android phone.so thats 80-90% of the population, depending on region.

author: Ardutronic
author_rank: Newbie
timestamp: October 09, 2018, 09:55:00 am
content: I'm sorry to inform you I'm in the 4 or 12 people affected by this. I have more followers on Google+ than I have on Facebook! At least I can download my data with Google Takeout...

author: bd139
author_rank: Super Contributor
timestamp: October 09, 2018, 09:55:46 am
content: Another cloud success story there.

author: rsjsouza
author_rank: Super Contributor
timestamp: October 09, 2018, 05:49:45 pm
content: Bastards. I was forced to sign up for this crap when I started to take Youtube more seriously. Rarely accessed it, thus I have absolutely no idea what data I have there, as it surreptitiously published many of the comments posted in other platforms.https://www.theverge.com/2018/10/9/17952604/google-plus-user-profiles-forced-youtube-gmail-search

author: Red Squirrel
author_rank: Super Contributor
timestamp: October 12, 2018, 04:44:38 pm
content: Quote from: rjp on October 09, 2018, 01:58:19 amYeah sad reality is that actually a lot of people have G+ it's just a question of who uses it or not. So actually a pretty big portion of the population are indeed affected by this. They know everything including your search history and what sites you visit and all that is public now.

author: jeffreyjames44
author_rank: Contributor
timestamp: October 12, 2018, 05:11:36 pm
content: They'll know how much time I spend on here though