hybridfree/eevblog-posts huggingface dataset:
Flood Light for Stair in the Garden? - Page 1
Forum section: electronics / general

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 16, 2017, 09:57:59 am
content: HiI know there are a lot of Products out there and many of then are Relabel China Crap.Can someone recommend an Flood Light for the Garden who can switched off/ on by an Relay?The Building is 4 Floors hight where the Lamp should mounted on and the footpath is along the Side of the House.That mean I need an Beam who goes more an rectangle shape. The Flowers dont need to get light up in the night.I got an Axis IP Cam (with an Training) who should mount next to the Light and when the Cam detect some moment the light should switch on. The Cam have 2 Ports for output who can switch an Relay.We have here 230V.Is a Relay required or are any other way to cut the power off to save money?Thanks!

author: cdev
author_rank: Super Contributor
timestamp: October 16, 2017, 01:22:46 pm
content: You definitely need a relay and typically it is controlled by a low voltage output from your alarm system. Simply connecting the alarm signal to an appropriate type of relay works (the ways they work vary by manufacturer and setting, it should be laid out in the documentation for the alarm-connected device- so you need to give us more information)Opto isolation is good to have if there is a chance of lightning hitting nearby trees. In a world of long wires and lightning, given how cheap a relay board with opto protection is now, why not, it should be opto-protected.I have an alarm - a real alarm system.. so at the time it was being installed, I used a very sensitive relay board from Elk specifically for alarms, which was kind of expensive but I now realize that a great many other relay boards would have worked just as well and have been much cheaper (and they also provide opto-isolation from high voltages going in either direction- useful if there is an almost direct lightning hit.)As far as flood lights you only need to get a generic light that shines in two directions. An adjustable light with two separate floodlights. Typically they mount to a wall in the middle and can shine both ways.Watch out for false alarms- be considerate of others sleep.If it would bother neighbors, better for your light to only go on if somebody is right there than go off every time deer walk by, etc.
Some northern lights pics from last night - Page 1
Forum section: electronics / general

author: Red Squirrel
author_rank: Super Contributor
timestamp: October 14, 2017, 11:20:44 pm
content: Noticed the sky lit up a few times when I was at my parents' house last night but didn't have my camera. Later that night at home there was still a bit of activity so caught a few.This one right from my back yard with bonus big dipper:More pics:

author: GreyWoolfe
author_rank: Unknown
timestamp: October 15, 2017, 01:48:18 am
content: Very nice and very jealous.

author: Mr. Scram
author_rank: Super Contributor
timestamp: October 15, 2017, 02:00:46 am
content: Wow, those stars are bright. There are many advantages to living where I live, but the light pollution certainly isn't one.

author: Red Squirrel
author_rank: Super Contributor
timestamp: October 15, 2017, 03:47:50 am
content: Yeah I live in northern Ontario, and it's pretty nice here for that. Would not trade it a for big city.

author: Beamin
author_rank: Super Contributor
timestamp: October 15, 2017, 05:49:34 am
content: Quote from: Mr. Scram on October 15, 2017, 02:00:46 amYour country comes up as a black X kind of like a "red x" on my browser.

author: bitseeker
author_rank: Super Contributor
timestamp: October 15, 2017, 07:19:53 am
content: Nice shots Red. What camera did you use for those?

author: Red Squirrel
author_rank: Super Contributor
timestamp: October 15, 2017, 06:01:43 pm
content: Used a Nikon D7000. Most shots are at around 15-30 second exposure. Used a 35mm prime except for the fish eye one.

author: bitseeker
author_rank: Super Contributor
timestamp: October 16, 2017, 07:34:57 am
content: Cool. Nice job!
Mystery component please help identify. - Page 1
Forum section: electronics / general

author: CaptNJack
author_rank: Newbie
timestamp: October 16, 2017, 03:22:11 pm
content: This is in a sterile glass vacuum storage container. I have reason to believe it is a satellite part. It has 3 leads with one marked -k. It is at least 10+ years old. It looks hand made.It is simply driving me crazy. What is it? What are those resistor looking things?

author: CaptNJack
author_rank: Newbie
timestamp: October 16, 2017, 03:27:33 pm
content: Here is a more detailed pic:

author: CaptNJack
author_rank: Newbie
timestamp: October 16, 2017, 03:29:08 pm
content: Top view:

author: bd139
author_rank: Super Contributor
timestamp: October 16, 2017, 03:30:02 pm
content: Looks like glass encapsulated ceramic resistors to me.

author: CaptNJack
author_rank: Newbie
timestamp: October 16, 2017, 03:47:21 pm
content: Hmm based on your reply and Google maybe a thermistor? And glass encapsulated for space...

author: bd139
author_rank: Super Contributor
timestamp: October 16, 2017, 04:07:15 pm
content: I doubt it's a thermistor.If it is a satellite part, in space applications, if you want to dump some current somewhere, it will get turned into heat. Problem is you can't use forced air cooling or convection because there isn't any air. Ergo dumping some current into these and leaving it to radiate off instead or conduct or convent is ideal. This is optimised for radiation versus conduction or convection.
Unusual part applications - Page 1
Forum section: electronics / general

author: amyk
author_rank: Super Contributor
timestamp: October 15, 2017, 02:04:17 am
content: I came across this article on an incandescent bulb in HV circuit of CRT monitor:http://www.righto.com/2017/10/inside-vintage-xerox-altos-display-tiny.htmlDoes anyone have other interesting stories of parts used in unusual ways? I once came across a piece of network equipment which would emit beep codes if something was wrong --- but when I opened it up to troubleshoot, there was no sign of any piezo speakers (that's what it sounded like); the beep codes were coming from a large bank of ceramic decoupling caps, and the processor was programmed to draw current at precisely the right frequency to make them beep.
Oscilloscope Music - Page 1
Forum section: electronics / general

author: NivagSwerdna
author_rank: Super Contributor
timestamp: October 18, 2017, 10:37:50 am
content: This was partially done (some of the visuals) by a relative of mine... I think it is rather cool...https://youtu.be/CC2sK2ods6A

author: capt bullshot
author_rank: Super Contributor
timestamp: October 18, 2017, 10:58:39 am
content: Don't like the music, but the visual effects are great

author: NivagSwerdna
author_rank: Super Contributor
timestamp: October 18, 2017, 11:04:19 am
content: Quote from: capt bullshot on October 18, 2017, 10:58:39 amI think the music IS the visuals and vice-a-versa... i.e. you feed in the audio to the XY and you get the image... I'm not entirely sure.There is also this one... (which did not have input AFAIK from my relative)... which I prefer...https://youtu.be/XziuEdpVUe0

author: capt bullshot
author_rank: Super Contributor
timestamp: October 18, 2017, 11:15:41 am
content: Quote from: NivagSwerdna on October 18, 2017, 11:04:19 amThe second one could be made this way. I really doubt this for your relatives one.
Arrow - cheeky b*ggers increased the prices at checkout! - Page 1
Forum section: electronics / general

author: splin
author_rank: Frequent Contributor
timestamp: October 14, 2017, 02:36:04 pm
content: Had a voucher offer that expired at midnight last night so spent an hour or so ordering some parts. I added 4 AD5547CRUZ DACs @ $16.47 (still showing at that price on octopart). That was a very good price and quite possibly an error, but they were there in the shopping basket at that price.I continued shopping for some time to meet the minimum order value then went to pay. Just before I confirmed the order I realized that the total cost had gone up - the DACs were now just over $25 apiece! There was absolutely no warning about the price change so I was quite pissed off. I'm guessing that in the checkout process their order system did a sanity check on the prices, perhaps by checking on competitors sites, to try to avoid potentially costly pricing errors. I'd have been irritated, but wouldn't have had a problem if they had warned about the error and asked me if I wanted to proceed with the order at the new price - they are under no obligation to complete the trade at the wrong price (or any price).I suggest anyone who orders from Arrow to be very careful to check the final price - in my case it was pretty obvious because of the size of the increase but it would be easy to miss a few % here or there on a large order . And you'd have no evidence after purchase of the price that you were offered when putting them into the basket because your invoice would only show the adjusted prices.I very much doubt there was any human element involved given that it was't far off midnight (CT). Anyone else had this issue?
DIY Silicone Mold Question - Page 1
Forum section: electronics / general

author: alexg
author_rank: Regular Contributor
timestamp: October 10, 2017, 02:15:47 pm
content: Hi All, it is a long shot asking this on electronics forum but since it is for electronics project I will give it a try.I have aluminum mold for keypad and I wanted to use real HTV silicone rubber, I can get a cheap vulcanizer and I also going to receive a sample batch of raw silicone, however I was told that I will need to add a curing agent into it before I can put it into vulcanizer, otherwise nothing will happen. I have no idea where to get that curing agent, what it is, etc. I did some googling and seems that there are couple kind, sulfur and peroxide, also seems like nobody in US sells it or you need to get it in quantities starting from 100kG.Can anybody suggest where I can find HTV silicone with curing agent for DIY silicone mold?I already tried variety of room temperature two-component ones and while they work in general, they seem to be far away in performance from HTV silicone.Any info is welcome, thanks in advance.

author: R005T3r
author_rank: Frequent Contributor
timestamp: October 12, 2017, 07:07:51 pm
content: You can have the vulcanizer from the silicone manufacturer you purchased the batch, there's no use to have the A part and no curing agent (if it's not premixed).Also why in the first place you would use HTV instead of RTV? You will certanly need an oven to cure the mold, not to mention thay you need specialized equipment to use that.From a performance point of view, the same results can be obtained with RTV. HTV is used when you need to inject-print your pattern, and since the mold is hot it cures soon after it is injected into the mold. You probably just picked up the wrong RTV! Get some shore grades below the previous product, and you will obtain a better product! If you are referring that it makes bubbles and it won't cure in some points, it's because you didn't mixed it in a vacuum, and you didn't mixed it in some points. If the silicone cures, but it's sticky, it's because you have a moist envoirment (That's why you want to cure it in a vacuum!)Also, moisture plays an important role: you should always have a dehumidifier to have the humidity regulated in your working place BEFORE making the mix!

author: floobydust
author_rank: Super Contributor
timestamp: October 12, 2017, 08:59:46 pm
content: Smooth-on Inc.has a great website for stuff about making molds and offers materials.It's mostly Hollywood masks and props. Cool read.
Tool for tightening p/b switch retaining ring. - Page 1
Forum section: electronics / general

author: Circlotron
author_rank: Super Contributor
timestamp: October 12, 2017, 04:11:07 am
content: I often use these pushbutton switches. The retaining ring has a pair of notches cut in it for some kind of tool to engage in. Does anyone know what this tool is or where I could get one?http://au.rs-online.com/web/p/push-button-switches/2806361/?sra=pstk

author: Brumby
author_rank: Unknown
timestamp: October 12, 2017, 04:42:44 am
content: I would start looking under "pin spanner".There are literally dozens of variations on these - but the approach you need for this style would be something like this:Alternatively, a split blade screwdriver-like tool with a deep, wide slot and a right angle bend.I expect somebody would make the purpose built tool - but I don't know where to find it.

author: Benta
author_rank: Super Contributor
timestamp: October 12, 2017, 11:28:35 am
content: Yep, pin spanner or pin wrench, depending on your location.

author: Ian.M
author_rank: Super Contributor
timestamp: October 12, 2017, 11:41:33 am
content: Make your own box spanner for them - take a steel tube that's a close fit over the nut, cut two tabs, fold them in, file to fit then grind off the excess tube length leaving the tabs close enough to the end to fit the nut properly if tightening it against a panel. Smooth the edges and end so it doesn't mar the panel. Then drill the other end for a tommy bar, insert one and upset its ends so it is permanently retained.
T&M industrial design - Page 1
Forum section: electronics / general

author: MrW0lf
author_rank: Frequent Contributor
timestamp: October 11, 2017, 08:08:53 pm
content: Stumbled upon this video:Looking at old Tek gear could see straight away that someone withexpertisehas been busy designing these. Compared to that level most modern gear is shaped by kindergarten kids. However kids buy a lot of T&M gear lately so maybe it all ok... main thing is price point...
The Internet of insecure, potty-mouthed things? - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: October 10, 2017, 04:34:05 pm
content: The Internet of potty-mouthed things?Insecure network cam's "conversation" with owner caught on video(Warning, sexually explicit language is used by unknown intruder in the context of the linked video)Video illustrates how (backdoors into? default password still enabled?) internet enabled networked appliances used by security ignorant buyers are allowing voyeurs to spy on and even harass them verbally inside their homes.https://petapixel.com/2017/10/07/woman-films-internet-connected-camera-talking/

author: amyk
author_rank: Super Contributor
timestamp: October 11, 2017, 03:02:45 am
content: The only thing funnier is the video of someone who found an open IP cam, network printer, and someone sitting in the same room, which I can't seem to find anymore, but came across many years ago...
Board Advertiser -PCB Fab - Page 1
Forum section: electronics / general

author: Bubba
author_rank: Newbie
timestamp: October 01, 2017, 09:18:34 pm
content: Just Curious. How many members have ordered from them/Your experience?Quality, Service, Speed of delivery after order etc..I know your not supposed to use NTE parts in Design work, Just as substitutes, But I have a few NTE107's leftover I want to play with. They were left over from replacing the front end transistor in a 11m Radio10 Boards for $2.00 is tempting.I'm thinking about ordering a batch of generic voltage divider bias circuit boards, and do a bit of experimentation. I figure if I damage a board changing things around I would have plenty of spares....Since I have a few "Leftovers" I want to try them as a pre amp for receivers, and if I don't like the performance, try a few different transistors...Since the NTE107 is being used in the 27Mhz band I hope they will work satisfactory on lower HF frequencies, Maybe even add one to a Xtal set.73

author: Bubba
author_rank: Newbie
timestamp: October 10, 2017, 09:57:26 am
content: A week, and a 100 views....I guess nobody has any experience with them......

author: stmdude
author_rank: Frequent Contributor
timestamp: October 10, 2017, 10:50:24 am
content: If you're talking about JLCPCB, I have tried them. (Or, more accurately, "EasyEDA", which is the same company)Their boards were fine (2-layer and 4-layer). I'd say that they were a step above Itead and Seed in quality, especially in the silkscreen department.I have however stopped using them, as they tried some underhanded/stealth marketing here in the forum. I don't want to support that..I've never ordered parts from them, just PCBs.
any jailbreak for ipad 10.3.3 - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: October 10, 2017, 02:22:32 am
content: is there a jailbreak for ipad 10.3.3

author: Richard Crowley
author_rank: Super Contributor
timestamp: October 10, 2017, 02:28:35 am
content: I am waiting 2 weeks for Apple to reset my Apple account so that I can un-brick my new iPod Touch. And then I am either going to give it away or throw it into my blender and see how it "blends". I absolutely detest everything about it (and the whole Apple walled garden ethos in general.)

author: sycho123321
author_rank: Regular Contributor
timestamp: October 10, 2017, 03:19:27 am
content: No, there's not a jailbreak for ios 10.3.3 on any device.

author: sony mavica
author_rank: Frequent Contributor
timestamp: October 10, 2017, 03:26:49 am
content: Quote from: sycho123321 on October 10, 2017, 03:19:27 amthanks
Galaxy G2-20 house alarm - Page 1
Forum section: electronics / general

author: snipersquad100
author_rank: Frequent Contributor
timestamp: June 29, 2014, 10:02:58 pm
content: I have recently got hold of a used Galaxy 2-20 alarm system. The default user code (1234) works but the engineers default code (112233) does not. Is the away to reset the system to factory reset mode.? Thanks

author: XOIIO
author_rank: Super Contributor
timestamp: June 29, 2014, 10:46:43 pm
content: I'm guessing there may be a jumper somewhere inside of it to do a factory reset.edit: found this on another forum with a bit of googling, not sure what they mean by "reprogram the whole system"if you access the end station try the followingremove mainsremove batteryput a link between 0v and tamper on the siren out pins on the pcbremove connections to zone 1 (1001)defeat panel tamper switch, put the end station panel screw in placethen power the panel up bay battery first then mainsenter default code 1234 (or12345)this should silence the systemthen ESCthen enter default engineers code 1122 or 112233 depends on software versionthen ENTenter engineer code again that should default back to factoryBE AWARE BY DOING THIS YOU NOW HAVE TO REPROG THE WHOLE SYSTEMdo not do this unless you have either an engineers book or have knowledge of the systemThere is also something on another forum that mentions having EAROM replaced, I'm guessing that is done by sending it to Honeywell, but maybe there is a default rom dump or something online *shrugs*

author: snipersquad100
author_rank: Frequent Contributor
timestamp: June 29, 2014, 11:02:37 pm
content: Thanks for the reply, I seen that but it didn't work. I not sure if I did it right. The tamper (T marked on the board) which it want's you to set low with a link to 0v is already at 0v.

author: kamaangir
author_rank: Contributor
timestamp: June 30, 2014, 12:51:17 am
content: Is this an ADT panel?Try shorting zone 1, and remove bell tamper, power it down and power back up battery 1st.

author: snipersquad100
author_rank: Frequent Contributor
timestamp: June 30, 2014, 09:47:54 am
content: Thanks kamaangir that worked.Thank you.

author: kamaangir
author_rank: Contributor
timestamp: June 30, 2014, 10:13:39 am
content: No probs!

author: davidwoollin
author_rank: Newbie
timestamp: October 09, 2017, 05:55:44 pm
content: I'm struggling to default back to factory settingscan you help
3D Printer Price in India - Page 1
Forum section: electronics / general

author: triwar
author_rank: Newbie
timestamp: October 09, 2017, 06:35:28 am
content: I need to buy 3D Printer. which is the good place to buy and price need to be affordable.

author: Malphite822
author_rank: Newbie
timestamp: October 09, 2017, 12:07:18 pm
content: I'm not quite sure whats considered "affordable", but I'd recommend buying an entry-level 3D printer from Aliexpress. Bought two printers very cheap there - no issues at all.
"Soviet Sci-Fi Mag Predicts the Future" (amazing art!) - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: October 08, 2017, 04:09:58 pm
content: This is amazing art about the (hoped for) future and technology.http://englishrussia.com/2017/06/29/soviet-sci-fi-mag-covers-predict-future/http://www.diagram.com.ua/library/tm/

author: shteii01
author_rank: Frequent Contributor
timestamp: October 08, 2017, 04:46:01 pm
content: Loved reading it for the translated sci fi short stories. I think most of them were American. That was back in late 80s and early 90s.Thank you for the link to the archive. I have read all the issues from maybe 89 or 90. It will be fun to read the earlier ones.

author: ataradov
author_rank: Super Contributor
timestamp: October 08, 2017, 05:51:58 pm
content: TM was an awesome magazine. I loved reading it.And this is one of the thing that is possible in a socialist-heading society, without state sponsorship this would have been impossible. So are dozens of other high quality magazines (Radio, To help a radio amateur, Science and Life, Chemistry and Life, etc).Radio and Science and Life continued after the Soviet Union collapse, but the quality dropped considerably (reprinting unverified crap from the internet), and the ads were taking up half the magazine.

author: cdev
author_rank: Super Contributor
timestamp: October 08, 2017, 06:44:38 pm
content: And the loss of a great deal of public funding for scientific research and education is a huge loss here in the US too.We keep telling ourselves and one another that somehow private funding and "the marketplace" can do better but the facts don't back that up at all, its really a bad situation.The same applies to health care and essential public services/utilities. In terms of importance, these four are the most important and their importance is equal.. higher education, primary education, clean water, healthcare. IMHO, we have to figure out a way to keep them available even when its unprofitable in the short term to supply them to many people. Otherwise we're in for a rough ride.Publishing of good quality content, is also up there.. to a great extent people are trying to do that but the dependence on mega-corporations to aggregate and host thousands or millions of peoples content is disturbing to me.I think that we would be better off with the early Internet's far less centralized model.Quote from: ataradov on October 08, 2017, 05:51:58 pm

author: cdev
author_rank: Super Contributor
timestamp: October 08, 2017, 06:49:14 pm
content: The thanks should go to @Mr.Wolf who posted one of the links to them in a recent semi-unrelated thread here in General Chat. That made me aware of them.Quote from: shteii01 on October 08, 2017, 04:46:01 pm

author: MrW0lf
author_rank: Frequent Contributor
timestamp: October 09, 2017, 10:19:56 am
content: Might as well post second link thenFull set + many extras as torrent:https://rutracker.org/forum/viewtopic.php?t=4986785"Skachat' razdachu po magnet-ssylke" should work if have torrent-client, no need to register.If want to type russian letters for search etc then this helps:http://translit.net/
Best Amateur YouTube Video Ever (next to Dave's) - Page 1
Forum section: electronics / general

author: JoeN
author_rank: Frequent Contributor
timestamp: October 09, 2017, 02:03:51 am
content: I would venture to guess many of you have seen this already. If you haven't, you are missing out. Only 20 minutes long and surely you will learn something. Ever hear of the Majapahit before? A short history of The World. Somehow the dude left out Newton and Einstein, though. Clearly a liberal arts background.

author: chickenHeadKnob
author_rank: Super Contributor
timestamp: October 09, 2017, 03:03:46 am
content: The linked video is "good" if you are a gerbil on crystal meth, I found it unwatchable.

author: buck converter
author_rank: Regular Contributor
timestamp: October 09, 2017, 03:09:19 am
content: As a high school student, i tell you, this video came out the day before the World History AP exam. joke was that we all learned more from this video in 20 minutes than all year (we don't the best honors history department). check out his "History of Japan" as well.
TO-247 metal pad shape - Page 1
Forum section: electronics / general

author: Circlotron
author_rank: Super Contributor
timestamp: October 08, 2017, 09:05:06 am
content: Here's a pic of a ST branded TO-247 dual schottky diode. Nothing special at all. The question is, why is the edge of the metal pad such a complicated shape? Some other manufacturers have a simple rectangle. The sides almost look like they have had a TO-220 punched out. What about the top corners? Any ideas?

author: Muttley Snickers
author_rank: Unknown
timestamp: October 08, 2017, 10:13:52 am
content: It would appear that the designer had a fire hydrant fetish or something, this in turn begs the question of what's up with the burn marks on the legs ?.

author: djQUAN
author_rank: Frequent Contributor
timestamp: October 08, 2017, 10:35:27 am
content: Quote from: Muttley Snickers on October 08, 2017, 10:13:52 amIt is shiny solder. Dark part appears to be the photographer's hair.

author: Circlotron
author_rank: Super Contributor
timestamp: October 08, 2017, 10:51:18 am
content: Shiny tinned leads.Dark part is a reflection of the black plastic phone case.Hair? I wish...

author: SeanB
author_rank: Super Contributor
timestamp: October 08, 2017, 12:55:45 pm
content: Probably a requirement for the production machinery, wanting a shape that would be easy for the automatic machinery to align within the feed line, so the assembly of the dies would be done perfectly each time, and then the bonder would get the pads attached to the die after the epoxy cure or the soldering operation. Then the final pressure encapsulation fills in all the voids and attaches the leads, then a final punch strips the leadframe from the device, and then another automatic grip passes the leads through a tinning bath for long reliability, then into the tubes for shipping after a quick functional test and a labelling operation.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 08, 2017, 01:36:15 pm
content: IIRC, a lot of the ones I've broken open also have features on the inner face: a coined profile around the edge, or a bumpy texturing on the surface.IGBT, from IR, I think?(It's a co-pack, so the shiny rectangle is the antiparallel diode, which was shattered when the device cracked. The larger square, more easily visible by the outline impression it left on the plastic, is the IGBT die. It exploded in arc flash, hence the molten glob on the plate.)Tim

author: djQUAN
author_rank: Frequent Contributor
timestamp: October 08, 2017, 06:36:06 pm
content: Quote from: Circlotron on October 08, 2017, 10:51:18 amThe shapes I would think are dependent on the punch dies.The semicircles on left and right of the mounting hole (front side) are parts of the front mold that push the copper tab to the back of the mold for the exposed copper pad.The shapes in the back are in such a way that the plastic case could flow behind some parts of the copper tab to keep it together better. If you smash it and analyze the copper tab you'll see what I mean.That's what I think about them
Farnell/E14/Newark no longer authorized ADI distributors - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: October 15, 2017, 12:30:34 am
content: As noticed by diyaudioin another thread. Hadn't seen it mentioned before...http://www.analog.com/en/about-adi/corporate-information/sales-distribution.htmlQuoteNo great surprise there, I guess. They only sold a tiny part of the range, were more expensive than anywhere else and, here in Aus at least, they've never carried much local stock (a situation au.E14 seem intent on worsening).On the plus side ADI have always been excellent with samples & small orders, with good prices & fast shipping (from Mouser Tawian IIRC). On the downside, I wonder if they'll start relying more on Arrow instead as Linear have always done

author: Dubbie
author_rank: Unknown
timestamp: October 15, 2017, 01:25:01 am
content: This is annoying. In NZ, I find Farnell is the only option with decent shipping (next day delivery and free for over $45NZD)
So how does one pimp their youtube videos? - Page 1
Forum section: electronics / general

author: CJay
author_rank: Super Contributor
timestamp: October 07, 2017, 12:47:46 pm
content: As per the title, I've posted a very unpolished and unedited video, a teardown of a Bourns Optical encoder (start small eh) during which I completely fail to puncture, slice or stab myself.https://youtu.be/rCsLWb39r7kHelpful comments, constructive criticism etc. all welcome.
Considerations when moving test equipment to the UK - Page 1
Forum section: electronics / general

author: Earendil
author_rank: Regular Contributor
timestamp: October 02, 2017, 02:43:42 pm
content: I will move to the UK for a job from Hungary, and I'd like to take my test equipment with me.I have lots of RF stuff: oscilloscopes, network analyzer, siggens, even a power amplifier (75W).Most of these are older equipment, the majority are under 6Ghz, though I also have 20Ghz pulse gen, sampling scope and power meters.A moving company will deal with relocating my stuff in a container. Naturally, I don't wish to pay any taxes. I own these privately, I've already paid VAT when I purchased these.Is there any issue with customs or other regulations that I should watch out for?

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: October 02, 2017, 03:13:54 pm
content: Hungary is in the EU so no customs issues ( for now!)

author: Earendil
author_rank: Regular Contributor
timestamp: October 02, 2017, 03:22:06 pm
content: The UK is not in the Schengen zone though.And what about the RF stuff? Is there any law about owning such equipment. I know for example that according to Ofcom one is not officially allowed to listen on certain frequencies. We might also have similar regulation in Hungary but here the enforcement is not very strict.

author: richard.cs
author_rank: Super Contributor
timestamp: October 02, 2017, 03:39:46 pm
content: There is no UK law that relates to owning equipment that could be used for listening, but but using it on certain frequencies would be in contravention of the wireless telegraphy act (although effectively never enforced anyway).Not sure about the customs side, but I would be most concerned about damage in transit and ensuring adequate insurance cover.

author: jc101
author_rank: Frequent Contributor
timestamp: October 03, 2017, 06:01:20 pm
content: I've shipped to Hungary from the UK and received stuff too, no customs paperwork required at all. Just handed the package over to the driver and job done. Assuming they will be driving the container over then should just be able to drive door to door with only a passport check for the driver(s).The Schengen zone is for passport control and movement of people, not goods.

author: KJDS
author_rank: Super Contributor
timestamp: October 04, 2017, 08:06:42 pm
content: Quote from: Earendil on October 02, 2017, 03:22:06 pmThere are no issues whatsoever with bringing things in or owning RF equipment.

author: Galenbo
author_rank: Super Contributor
timestamp: October 05, 2017, 03:11:44 pm
content: Quote from: Earendil on October 02, 2017, 02:43:42 pmThis makes me really scared...
eBay and PayPal notification emails being delayed? - Page 1
Forum section: electronics / general

author: Jwalling
author_rank: Unknown
timestamp: October 04, 2017, 10:07:21 am
content: Has anybody noticed this lately? Sometimes they take up to a day to arrive in my email. Some never make it at all...I purchased a scope yesterday, and have still not received a "you sent a payment to blah blah blah"

author: wraper
author_rank: Unknown
timestamp: October 04, 2017, 10:18:23 am
content: I didn't sell on ebay last 2 months but previously I've seen this crap several times about incoming payments. Sometimes it lasted for weeks. Also I've seen empty paypal emails when payment was received, could last a week.QuoteThey'll make it.. after a week.

author: Psi
author_rank: Super Contributor
timestamp: October 04, 2017, 10:28:56 am
content: Every so often i do notice that a paypal order notification email takes a while to appear after the order.The longest ive ever had was 2 days

author: bd139
author_rank: Super Contributor
timestamp: October 04, 2017, 10:32:08 am
content: Have had this problem for a few weeks now.What's worse is they integrated Shutl at least in the UK, so they don't take the payment for post until three days later. By that time I've already emptied paypal out into my bank account and the default bank account I have set up is a mule account so paypal can't rip my main account off randomly and the balance is ZERO. So every bloody week I get a letter from the bank saying they couldn't authorise the payment when paypal attempt to take it.Total PITA of a service but mostly unavoidable. Grr.

author: medical-nerd
author_rank: Regular Contributor
timestamp: October 04, 2017, 10:41:24 am
content: HiyaI have bought a number of low value items past few days - get email notifications within few minutes, howeverI have noticed a difference between website and phone app. When I buy from website - notifications take longer (up to hours),its almost immediate when I use the phone app.Cheers

author: Jwalling
author_rank: Unknown
timestamp: October 04, 2017, 10:41:26 am
content: OK, then it's not just me then. I was wondering if there might be some broken server between them and Comcast which is my provider.In the meantime I guess I'll have to keep checking my orders and messages to make sure nothing gets missed. When I sell, I have to ship within one day to keep my "top rated plus" rating. It would suck to lose it because they can't gettheiract together.Thanks all!
Ex Google autonomous vehicle engineer wants to create an AI God - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: October 04, 2017, 02:51:09 am
content: This is an interesting story.A controversial engineer who has been involved in multiple simultaneous competing companies to make self-driving cars (and who is fighting a lawsuit over it) is apparently also now creating his own religion that wants Man to create an electronic "Godhead".This is a story that could only have happened in the SF Bay Area.Here is the article:God Is a Bot, and Anthony Levandowski Is His Messenger:[url=https://www.wired.com/story/god-is-a-bot-and-anthony-levandowski-is-his-messenger/]https://www.wired.com/story/god-is-a-bot-and-anthony-levandowski-is-his-messenger/Also:https://www.techspot.com/news/71178-former-google-engineer-developing-ai-god.html

author: Ampera
author_rank: Super Contributor
timestamp: October 04, 2017, 07:05:08 am
content: Remember kids, meth is a hell of a drug.

author: Electro Detective
author_rank: Super Contributor
timestamp: October 04, 2017, 07:17:24 am
content: Puff Puff Pass...

author: Bud
author_rank: Super Contributor
timestamp: October 04, 2017, 07:23:41 am
content: "Way of The Future", WTF in short.
The most interesting, educational and entertaining tool review I have ever seen - Page 1
Forum section: electronics / general

author: Cubdriver
author_rank: Unknown
timestamp: September 29, 2017, 07:03:02 am
content: AVE is classic. Let's plug 'er in and see how she chooches.-Pat

author: Jim Kwik
author_rank: Newbie
timestamp: September 29, 2017, 09:36:31 am
content: good video

author: Electro Detective
author_rank: Super Contributor
timestamp: September 29, 2017, 09:45:36 am
content: Quote from: Cubdriver on September 29, 2017, 07:03:02 am"This tool is good enough for the women I hang with""..been busier than a dog with 2 d!cks"

author: TerraHertz
author_rank: Super Contributor
timestamp: October 01, 2017, 10:36:48 pm
content: Can't say I agree. I find his verbal frills kind of annoying. And he's not quite the expert he pretends to be.* The lack of a key between the small pinion gear and motor shaft isn't a 'cost saving', it's a feature. Allowing over-torque slip prevents damage to the gear in the event of the grinder disk coming to an instant halt due to jamming in a cut.* The motor rear end bearing having that rubber cup - he makes out it's a silly idea, but it has very good reasons for being there. One being noise damping. Two, it prevents the bearing outer part spinning in the plastic case if the bearing gets a bit stiff due to dust. This is essential because once the bearing outer starts spinning in the plastic, it very quickly melts the plastic and irreparably ruins the machine. I've seen this happen.* The main gear - he goes on about how the surface is slightly rough under a microscope, and talks about how some machining and grit blasting process produced that finish. He does not seem to understand that surface texture is due to the gear being made by mold pressing and heat-sintering a metal powder. It was never 'machined'.
Batteries manufactured in Australia - Page 1
Forum section: electronics / general

author: maleetronic
author_rank: Newbie
timestamp: October 01, 2017, 11:51:00 am
content: Just found this in my news today and thought someone maybe interested in to read this.What you think when they will be ready to buy?https://www.qut.edu.au/institute-for-future-environments/about/news/news?news-id=122958Mark

author: wraper
author_rank: Unknown
timestamp: October 01, 2017, 11:59:57 am
content: As off the shelf product, probably never.

author: Brumby
author_rank: Unknown
timestamp: October 01, 2017, 04:12:49 pm
content: I would love for something like that to gain traction in Australia ... but it would take some rare volume and price outcomes to achieve a viable commercial business (I hesitate to think about anindustry.)I wish them well.

author: coppice
author_rank: Super Contributor
timestamp: October 01, 2017, 04:33:06 pm
content: That article describes both the manufacturing process and the product itself as just another me too, without identifying a single thing that would allow them to muscle in against established players who are way down the learning curve. Unless they have something interesting up their sleeves, it sounds like a project designed to failed.

author: Brumby
author_rank: Unknown
timestamp: October 02, 2017, 02:11:32 am
content: What typically happens with good ideas out of Australia (and we've had some terrific ones) is that theyhaveto move offshore for survival.Really frustrating.

author: MarkS
author_rank: Unknown
timestamp: October 02, 2017, 05:24:02 pm
content: Do the batteries require special circuitry to reverse the current flow when exported to the northern hemisphere or does the change in the Coriolis effect cause a self correction?

author: Brumby
author_rank: Unknown
timestamp: October 02, 2017, 05:40:29 pm
content: Nothing so exotic as the Coriolis effect.When the batteries get tipped over, having crossed the equator, the electrons just fall out the other end.

author: MarkS
author_rank: Unknown
timestamp: October 02, 2017, 06:04:32 pm
content: Quote from: Brumby on October 02, 2017, 05:40:29 pmOf course...
How do I locate all my old threads? - Page 1
Forum section: electronics / general

author: David_
author_rank: Contributor
timestamp: October 08, 2017, 02:59:31 pm
content: Hello.I have a problem, I have started numerous threads but I have ADD(Attention Deficit Disorder) and as a result it can be a while before I actually check the threads I have created, at the same time I have probably been on this site and seen that there are answers but without managing to read them.So when I click on that "show new replies to your posts" I don't find the thread I am looking for.There has to be some way for me to find all the threads that I have created, do you know how?Regards

author: lundmar
author_rank: Frequent Contributor
timestamp: October 08, 2017, 03:08:02 pm
content: I'm not sure if there is a better way but you could go to "profile->summary" and there you will find a "show posts" to see all your posts and then track responses from there.

author: AndyC_772
author_rank: Super Contributor
timestamp: October 08, 2017, 06:02:01 pm
content: https://www.eevblog.com/forum/profile/?area=showposts;u=106737
Phototransistor cap filter supplier? - Page 1
Forum section: electronics / general

author: eecook
author_rank: Regular Contributor
timestamp: September 30, 2017, 07:30:18 pm
content: Hi All,I am trying to build an LED light detector (Classify between LED and non-LED light). Given it's typical spectral footprint I was planning on measuring the 2 peaks and the valley (450, 480, 620nm) and do something like peak to valley ratio. In any case, I found that photodiodes are to expensive, and I didn't find any IC that does the job (particularly at the lower wavelengths). So I was planning to use wide spectrum phototransistors with cap filters to do the measurements. Now the problem is cannot find any company that sells off-the-shelf cap filters, everything I found so far, is either not for phototransistors or custom made.Any suggestions?Thanx,Simon.

author: Zero999
author_rank: Super Contributor
timestamp: September 30, 2017, 10:09:08 pm
content: How about a prism to split the light into a rainbow, then position the sensors at the correct positions for the wavelengths?

author: eecook
author_rank: Regular Contributor
timestamp: September 30, 2017, 10:30:37 pm
content: I am open to suggestions, but I need to buy the stuff and needs to be small enough to fit in an enclosure!

author: Zero999
author_rank: Super Contributor
timestamp: September 30, 2017, 10:35:07 pm
content: Quote from: eecook on September 30, 2017, 10:30:37 pmThat's pretty vague.What size is the enclosure?Do you have to make do with what you have on hand? If so, what do you have?If you can buy stuff, what's your budget?

author: eecook
author_rank: Regular Contributor
timestamp: September 30, 2017, 10:51:38 pm
content: Quote10cm x 10cm x 5cm(height)QuoteNothing at this point. I was going to order some partsQuote100usd
What's in a OSRAM G9 2.8W LED light bulb (that only lasted a week) - Page 1
Forum section: electronics / general

author: sorenkir
author_rank: Regular Contributor
timestamp: September 28, 2017, 07:05:37 am
content: Hi,This brand new nice little light bulb worked only for a weekThe PCB was potted with some soft gel like stuff, easy to remove.U1 is a BP9918B. (datasheet:http://images.100y.com.tw/pdf_file/35-BPS-BP9918B.pdf):Dressed in white components:The fuse and the rectifier are OK. I will not try to troubleshoot more, as this device is not isolated at all...Michel.

author: ElektroQuark
author_rank: Unknown
timestamp: September 28, 2017, 07:10:33 am
content: OSRAM is of high qualified and of high quality devices in my list. Only a week, wow.

author: amyk
author_rank: Super Contributor
timestamp: September 29, 2017, 02:56:32 am
content: It could be as simple as a bad solder joint. If you'd like to send it to bigclivedotcom, he could tell you more...Osram is a very funny name in Polish.

author: sorenkir
author_rank: Regular Contributor
timestamp: September 29, 2017, 07:49:33 am
content: Follow-up :- the chain of LEDs is OK, all LEDs light up,- the diode is OK,- the inductors are not open (both measure a few ohms),- the resistors are OK,- solder joints are looking OK (except one, that I have re-flowed --> no change).It must be the IC !When plugged, there is a high pitched irregular faint noise, but no light!Michel.

author: HighVoltage
author_rank: Super Contributor
timestamp: September 29, 2017, 08:27:58 am
content: I would probably open a second working one and compare measurements.Osram used to be good quality but one can not say this in general any more.
Query on Gearbest UK/EU Warehouse. - Page 1
Forum section: electronics / general

author: Dataforensics
author_rank: Unknown
timestamp: September 27, 2017, 09:14:50 am
content: Think I have been an idiot.Just ordered a 3d printer off uk.gearbest. Site states that they ship within the UK/EU from a UK warehouse. They even have a registered address in Spain.However the actual invoice seems to infer shipment from China, and that would probably incur import duty and taxes.Then I got mail from Gearbest stating that they do not have a UK warehouse or even a uk website. So there is either a language communication problem or worse.So my question, has anybody here from the EU actually had something delivered from an EU Gearbest warehouse? or have their orders come from China?Its actually not about the money, more that I want it delivered for a birthday and if it comes from China that is not likely.ThanksTony

author: Dataforensics
author_rank: Unknown
timestamp: September 27, 2017, 06:18:14 pm
content: Oh well I emailed them to cancel the order and refund via Paypal.Lets see if that works.

author: Bicurico
author_rank: Super Contributor
timestamp: September 27, 2017, 07:51:32 pm
content: I have bought from their Spanish warehouse and it did work great with no issues regarding customs, which is a major headache in Portugal, because every item pulled to customs will be retained for weeks or even months.I think they have arranged some dubious way of getting stuff out of the harbour without declaring it. Popular items get stocked, others won't.Also, they ship to some countries, where the item is put in a new envelope or package and shipped from a EU country. Example: China to Switzerland, repackage, Switzerland to Portugal. The Swiss are not members of the EU, but they have Schengen. This makes control dubious and he'll, the Chinese know how to make use of this...Gearbest is well known and recommendable.Regards,Vitor

author: wraper
author_rank: Unknown
timestamp: September 27, 2017, 08:00:31 pm
content: They do have EU warehouse but it is available only for certain goodshttps://www.gearbest.com/action-cameras/pp_631755.html?wid=3and must be selected when ordering.

author: Bicurico
author_rank: Super Contributor
timestamp: September 27, 2017, 08:08:56 pm
content: They have several warehouses.Uk, Spain, Germany and general EU.

author: Dataforensics
author_rank: Unknown
timestamp: September 29, 2017, 07:35:38 am
content: Thanks for replies.I have received a refund via Paypal so only five days time and worry wasted.What caused my concern is that geabest support actually stated to me."For this issue, we are so sorry that there is no UK warehouse on our website."It was probably a translation issue, I had a lot of trouble understanding their replies.I did not want to take the risk of it taking ages to arrived and being hit by customs charges.
James Cameron & Tim Miller on 'Terminator' Reboot & Dangers of Artificial Intell - Page 1
Forum section: electronics / general

author: lordvader88
author_rank: Frequent Contributor
timestamp: October 03, 2017, 10:11:40 pm
content: T1 and 2 are amazing. I sure hope this lives up to them, and they are talking of making THREE 3And I want an amazing Future War movie. Some of the video games did ok at that. But nothing is better than the future war stuff in T1/2.Personally I want Bethesda to make the TERMINATOR FUTURE WAR equivalent of Skyrim/FallOut3/NV/4A sandbox T.F.War/survival game could be EPICI sure hope JC can create the nessarcy magic still on the lvl of 1/2 (and I like some of the rest, but not the same as 1/2 for sure)