hybridfree/eevblog-posts huggingface dataset:
Looking for feedback - Page 1
Forum section: electronics / general

author: calexanian
author_rank: Super Contributor
timestamp: March 13, 2018, 05:13:36 pm
content: https://youtu.be/bns8D9fN5M4Playing around with a tesla coil and leak testing a tube in the intro clip. Maybe to use for a video series. Its grainy cause in the low light my camera sucks, but I can re do it when I get a better camera. Also I need a better mic or narrate over it cause the sound in my garage, well, sounds like a garage. Trying to gauge if there is any interest in this kind of video. I have the URLwww.brokenspeaker.comjust sitting around doing nothing and figure it would be a good electronics site name.Thoughts?

author: calexanian
author_rank: Super Contributor
timestamp: March 13, 2018, 10:28:05 pm
content: Wow. Nothing. Hmm.. didn't think it was that bad... Maybe I should do something else.
Need advice navigating a new job - Page 1
Forum section: electronics / general

author: engineheat
author_rank: Frequent Contributor
timestamp: March 14, 2018, 05:39:05 am
content: I work at a global company as a manufacturing engineer. My job entails improving the production efficiency of a high impact new production line they are bringing in and minimizing scraps. It's the most complex line at my current plant. I was hired for that line due to my technical background and also my foreign language skill which would be an asset in dealing with suppliers.Another colleague (alias David) working in a different but related role is taking a long time off (1 year) and wants others to take over his tasks.My manager spoke with another colleague (alias Tom) who is in my role (but responsible for another production line) but started 6 month earlier than me, to see if he's interested. Tom declined, saying it doesn't fit into his career goals. Then my manager asked me if I'm willing. Being new, I didn't want to flat say no, I merely said I will talk to the guy who is leaving to understand his job more.Honestly, this first month has been all training (mostly corporate related stuff) and I haven't even started my "real" work yet. But I know what I need to do because my company gives each person a "list of task" that they'll be judged on each year. I got mine, and I'll be needing to put in more than 40 hours a week.I talked to David today and he showed me a list of tasks that he's finding successors for. I mentioned I can help with one or two of them, only because the knowledge gained will help my own work. There was a couple of other tasks that he wants me to do, but I told them it's not in my interest area and I don't feel I can fit in my schedule, that it may adversely affect my performance, etc. He seemed a bit frustrated and implied that I'm "cherry picking" tasks, and that "sometimes one has to do certain tasks even if they are not interesting."Um, no. That's not what I was hired for and I already got a full plate. My own work is just as important to the company if not more. The fact that he's seems more aggressive than my manager on pushing his work on me made me even less willing to take on his tasks. We are on the same level as far as reporting structure goes.What should I do? Doing his work is not a promotion and I won't get paid more.

author: capt bullshot
author_rank: Super Contributor
timestamp: March 14, 2018, 08:06:34 am
content: Keep your current position.
Huawei denied. Security concerns. Is it real? - Page 1
Forum section: electronics / general

author: CNe7532294
author_rank: Regular Contributor
timestamp: March 13, 2018, 09:28:05 am
content: http://www.abc.net.au/news/2018-03-11/security-concerns-over-chinese-firm-huawei-5g-technology/9522894Note: I can't find the exact US article I read/saw this on (CNBC?) but the above is related.I'm not here to discuss geopolitics (although that probably won't stop anyone). I want to know everyone's opinion on this. Are they a security threat? What could they do? Is it worth it to infiltrate our system? Had a brief glance at another thread. I have to agree any useful data mining is huge to sift thru. Hype? Typical fear of an outside boogyman? Or in a another scenario, 3rd party infiltration? (not China but say someone else using a flaw Huawei cares not to fix) Thoughts?

author: tooki
author_rank: Super Contributor
timestamp: March 13, 2018, 10:00:07 am
content: Well, we know that US intelligence has intercepted Cisco network equipment purchased by foreign entities of interest and planted spyware in it before delivery. So it's not at all farfetched to assume that the Chinese would do the same thing.

author: donotdespisethesnake
author_rank: Super Contributor
timestamp: March 13, 2018, 10:01:30 am
content: After acquiring Qualcom, they could sell off the 5G part. That leaves Huawei (China) as main supplier of 5G parts.National security : it's easier for NSA to hack into US made devices than foreign ones. It's easier for Chinese government to hack into Chinese stuff than US stuff. IOW, it's about governments getting their spying equipment into another countries market, and preventing the other countries spying equipment entering their own.
Found some Beast-mode caps..  - Page 1
Forum section: electronics / general

author: roffvald
author_rank: Unknown
timestamp: March 15, 2018, 04:06:29 pm
content: So I work at a Coastal Radiostation, techies are having a spring cleanup and I scored some pretty impressive caps from the ewaste pile.Problem is I don't really know what I could possibly do with them. They seem to be custom made so there is very limited info about them. Any ideas? Do they hold any resale value? They've never been used. 6.0uF 5kVDC.

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: March 15, 2018, 04:43:56 pm
content: Try the 20KV ones I have, then you have high voltage. They stand 16", or if you must, I think 45 of your cm.The ones you have could be flogged somewhere for some aspiring Tesla coil maker or whatever. Make sure they are not dented or leaking from dents or splits.

author: Benta
author_rank: Super Contributor
timestamp: March 15, 2018, 04:46:06 pm
content: Cool!Need to be saved, they can certainly be used for some high voltage fun. Seems your transmitter had some serious anode voltages on the tubes.

author: roffvald
author_rank: Unknown
timestamp: March 15, 2018, 04:58:04 pm
content: Quote from: Benta on March 15, 2018, 04:46:06 pmYeah, I think they went to some of the old Marconi medium wave transmitters we have(in the kilowatts). Could they maybe be repurposed to a spot welder along with a Microwave oven transformer?Quote from: Quarlo Klobrigney on March 15, 2018, 04:43:56 pmThey're in mint condition, except for one where the paint is barely flaking. They all also still measure pretty damn close to the 6uF.

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: March 15, 2018, 05:06:38 pm
content: MOT or microwave oven transformers are to be undone in the HV windings and substituted with just a few beefy turns of large gauge wire to be used for welding. Conversely, keep the HV windings and rectify and filter them with the caps you have. I AM NOT RESPONSIBLE, DO NOT DO THIS! to the persons who are not knowledgeable of the dangers of high voltage. If you have a Variac the correct ICAS voltage could be obtained for a transmitter.On my caps, they were purchased at a Hamfest some long time ago.

author: roffvald
author_rank: Unknown
timestamp: March 15, 2018, 05:10:02 pm
content: Quote from: Quarlo Klobrigney on March 15, 2018, 05:06:38 pmNo you're right, I had a brainfart. There wouldn't be much benefit in doing it the HV way would there? Most DIY spot welders I've seen were they way you said, a few turns of beefcake cable replacing the HV winding.Also I take it you're a HAM from your previous comment? I wish I could let you dive into that pile, there was A LOT of older RF gear. Everything from Marconi gear from the 50's and up along with more modern stuff(We're going all digital now). I just don't have room for much of it, but I try to salvage small things here and there.
Proton Battery - Page 1
Forum section: electronics / general

author: Inverted18650
author_rank: Frequent Contributor
timestamp: March 12, 2018, 10:23:28 pm
content: Any thoughts?https://interestingengineering.com/researchers-create-breakthrough-proton-powered-battery

author: hermit
author_rank: Frequent Contributor
timestamp: March 12, 2018, 11:17:35 pm
content: Copy and paste from my IM window.You have any devices that run on protons?https://interestingengineering.com/researchers-create-breakthrough-proton-powered-batterythis one is really making the roundsdid I give you my synopsis?I prefer schnapps, but what the hell.IMHO, it’s a non-starter. At the moment they use a titanium mesh for the air/oxygen evolution electrode, with high loadings of some rather expensive materials: The catalyst loading on the oxygen side is a mixture of 2 mg/cm2 of iridium/ruthenium oxide and 2 mg/cm2 of platinum black.For comparison, commercial fuel cells have platinum loadings of less than 100 micrograms per square centimeter.They could clearly knock the catalyst loading down a fair amount, but this looks like a rechargeable fuel cell with a small hydrogen capacity.Carbon electrodes in this one.only the negative electrodeyou want me to send you the original paper?Not really. Just got a link off of an electronics site asking for opinions. Maybe I'll give them yours.sureI'm an expert, but they'll probably want an authority

author: TerraHertz
author_rank: Super Contributor
timestamp: March 12, 2018, 11:21:29 pm
content: A slightly different fuel cell. Using 'proton powered' as click bait in the title.
Meanwhile in Europe.... - Page 1
Forum section: electronics / general

author: schmitt trigger
author_rank: Super Contributor
timestamp: March 09, 2018, 06:20:25 pm
content: An interesting situation in the European electrical grid:https://www.nytimes.com/2018/03/08/world/europe/kosovo-serbia-clocks-europe.html?emc=edit_th_180309&nl=todaysheadlines&nlid=371077490309

author: bitwelder
author_rank: Super Contributor
timestamp: March 10, 2018, 07:22:53 am
content: There is already a thread on the subject:https://www.eevblog.com/forum/chat/the-european-power-grid-has-been-running-slow/

author: schmitt trigger
author_rank: Super Contributor
timestamp: March 12, 2018, 03:43:25 pm
content: Thanks for bringing this to my attentionI'll post further comments there.
Thank you Dave! - Page 1
Forum section: electronics / general

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: March 11, 2018, 10:04:04 am
content: Dear EEVblog,Thank you for providing us, the EEVblog family, with this lovely home.Thank you for being a positive guy.Thank you for sticking with an all-usable forum interface rather then going stylish.I guess you know, that all of us are thankful for what you are doing her, but there is no harm in vocalizing that once in a while. So please view this as my personal «post of appreciation».Good forums are rare these days or get murdered by some marketing maniacs (see Ultimaker forums disaster), because style is valued more than contents.You sticking to good old PHPBB is something that I embrace every day!Please keep your positive attitude, keep on fixing, inventing and educating and call out on fancy nonsense where it is due.Thank you and kind regards from Germany,Frederik

author: EEVblog
author_rank: Unknown
timestamp: March 11, 2018, 10:08:34 am
content: Thanks.BTW, this forum uses Simple Machines, not phpBB

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: March 11, 2018, 10:27:01 am
content: Quote from: EEVblog on March 11, 2018, 10:08:34 amOh cool, something else to read up on

author: Lord of nothing
author_rank: Super Contributor
timestamp: March 12, 2018, 02:11:22 pm
content: Quotesadly...Even with Germans its nice to have People from all round the the World here.

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: March 12, 2018, 11:57:39 pm
content: >Thank you for being a positive guyhue/10

author: RoGeorge
author_rank: Super Contributor
timestamp: March 13, 2018, 12:05:32 am
content: Quote from: frozenfrogz on March 11, 2018, 10:04:04 amThank you, and ^
Visualizing a photon How electrons make them? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: March 12, 2018, 05:41:17 am
content: This is something I have been trying to figure out. Yes I realize these are abstract concepts and don't translate to the physical sized world we can see but some general ideas.A photon is a particle and a wave. Its "size" is equal to its wave length. I can visualize how a light photon is created. An electron umps from a higher energy orbital to a lower one a photon f light is produced it's size being around the length of the jump(?). The photon is like flat disk that forms a cylinder as it travels through space the cylinder as wide as its wave length long as the speed of light times time.Things are a bit more complicated with say 1 meter waves. The electrons in a metal antenna bounce back and fourth in the wire with each oscillation forming a singe photon (?) that is a flat plane (RF is a magnetic field at a right angle to the electric thus forming a photon.) Or is photon created for every electron that jumps? This would make sense kind of but it would make things stronger(more photons) as the wave length got longer because there would be more photons? Or does that make sense because the photons have less energy since they are lower wavelength compared to light.If you have a meter antenna and a 300 MHz signal can you emit one photon by turning a special transmitter on for a split second? If so which direction would the photon take or would it be totally random going in any direction with probability matching radiation pattern? Would one photon be a 1/300,000,000 pulse? This seems too long. How do yo get more photon by adding more watts?Here another unrelated thought: What if the double slit works with electrons in this example because as soon as an electron pops into existence it's wave function is the size of the universe instantly. While being a point particle the electrons field of influence definitely has size and that size is just there or does it grow at the speed of light and we just don't notice it because its so fast at that small distance. Then there would be nothing spooky about it: the "shape" of the electron would already fit into the other slit and that's how it "knows" it exists without passing through it. Like how gas fits the shape of its container. There may be some reason to this because we see probability waves that spread with distance but never hit zero just getting close.
AT&T Archives: The Step-By-Step Switch - Page 1
Forum section: electronics / general

author: helius
author_rank: Super Contributor
timestamp: March 11, 2018, 07:11:47 am
content: The step switch (orStrowger switch) was the first automatic circuit switching device. It was used for most of the 20th century, mostly in smaller population regions. Soon after, the crossbar switch came into being: the crossbar switch was favored for large metro areas due to its higher density and greater number of circuits. Each type could be identified by certain distinctive sounds they produced on the line.http://www.wideweb.com/phonetrips/Since the step switch was mechanical, it could only decode digits of the number synchronously as they were dialed, placing constraints on the exchanges' design. This was exploited by phone phreaks searching for special numbers.

author: Red Squirrel
author_rank: Super Contributor
timestamp: March 11, 2018, 07:32:12 am
content: Those switches were cool for their time. I work for a telco and we have the oddball parts lying around.The office where I work had a stepper switch way back in the day pretty much where I sit before they installed the DMS100. Not sure what kind of switch exactly but it was some kind of stepper. Tandem stepper I think.
Buying Individual Turned Pin Sockets & Pins? - Page 1
Forum section: electronics / general

author: dexters_lab
author_rank: Unknown
timestamp: March 08, 2018, 10:50:35 am
content: i've been salvaging these off some old scrap boards as they are proving very useful to me, does anyone know where i might be able to buy some new?they are an individual turned pin socket and a pin and are great for making adaptor boards and stuff that plug into each other, especially when modding old through-hole pcbs

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 08, 2018, 10:52:49 am
content: Mill-Max and such. They're not cheap though: these sockets cost about $3 each in parts.Tim

author: dexters_lab
author_rank: Unknown
timestamp: March 08, 2018, 11:24:46 am
content: thanks, i'll have a browse through their catalog

author: daqq
author_rank: Super Contributor
timestamp: March 08, 2018, 11:25:27 am
content: There's a lot of socket out there. I have never searched for the counter part:http://uk.farnell.com/c/connectors/ic-sockets?no-of-contacts=1contacts

author: woodchips
author_rank: Frequent Contributor
timestamp: March 08, 2018, 12:57:32 pm
content: Harwin?

author: Benta
author_rank: Super Contributor
timestamp: March 08, 2018, 02:22:48 pm
content: Preci-Diphttp://www.precidip.com/en/Products/Contacts.html

author: FrankE
author_rank: Regular Contributor
timestamp: March 08, 2018, 10:42:09 pm
content: Vero, Harwin, Multi-Contact?

author: Mr.B
author_rank: Unknown
timestamp: March 08, 2018, 10:49:32 pm
content: I have used the following TE Connectivity sockets for Nixie tubes in the past.A bit pricey, but very good sockets. ( >100 = NZD 0.488 ea. )I am not sure where you would source a pin like your one though.https://nz.mouser.com/ProductDetail/571-5645500-1

author: rdl
author_rank: Super Contributor
timestamp: March 08, 2018, 11:18:49 pm
content: Not exactly what you're looking for, but interesting.http://www.robotroom.com/Color-PCBs-5.htmlhttps://www.digikey.com/product-detail/en/on-shore-technology-inc/WMS-080Z/ED2680-ND/2175337

author: dexters_lab
author_rank: Unknown
timestamp: March 09, 2018, 08:49:21 pm
content: Thanks everyone, plenty of options to look at!

author: tpowell1830
author_rank: Frequent Contributor
timestamp: March 10, 2018, 01:06:27 am
content: One more...https://www.mill-max.com/product_finder/1

author: tooki
author_rank: Super Contributor
timestamp: March 10, 2018, 02:30:30 pm
content: Quote from: tpowell1830 on March 10, 2018, 01:06:27 am^^ Mill-Max was in the very first reply...
Did ubeam quietly die or are they still at it? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: March 06, 2018, 11:33:45 am
content: I often wonder what the people that work there sit around doing all day. Or if they don't even bother going to work just showing up to do PR things and raise more money. If you are smart enough to be an engineer and you already tried and failed what do you spend your time doing? Read the internet all day at work? Solder and unsolder the same wire over and over.

author: LaserSteve
author_rank: Super Contributor
timestamp: March 06, 2018, 03:00:30 pm
content: You design the product your going to sell while unemployed, and polish your resume. At the same time "making" something for the company..I guess... Not that I would know...Steve

author: amspire
author_rank: Super Contributor
timestamp: March 06, 2018, 03:14:40 pm
content: I went to the UBeam website and they said it was time for me to cut the cord. I would have power always anywhere.Of course I did cut all my cables. I now understand what they mean by "disruptive technology" since it disrupted my technology.

author: Beamin
author_rank: Super Contributor
timestamp: March 09, 2018, 08:28:20 pm
content: Quote from: amspire on March 06, 2018, 03:14:40 pmFunders need to cut the cord on ubeam. The scientists told that girl it wouldn't work for reason. That doesn't mean you think out of the box it means your wrong and you are not in the right box. Too stupid to see your own stupidity.
Cheap Repackage and Shipp from the US? - Page 1
Forum section: electronics / general

author: Lord of nothing
author_rank: Super Contributor
timestamp: March 09, 2018, 04:00:10 pm
content: HiI want order something from US. The Company want ~120$ for Shipping to Austria without an Custom Declation and the other neccecary stuff..Can someone help me? Maybe some here have an Company with an good Contract and can shipp the Stuff to Austria with an correct custom declation?THX
So what is my qualification? - Page 1
Forum section: electronics / general

author: Simon
author_rank: Unknown
timestamp: March 06, 2018, 10:16:35 pm
content: I recently had my Italian diploma examined by NARIC which here in the UK gives you a certificate of equivalence for foreign qualifications. However I don't really have a clue about the UK qualification system and it seems to be quite frankly a ramshackle mess of various systems that are roughly equivalent to each other probably all dreamt up by different private companies that our government has given our education system to. Attached is a copy of the text on the document. Can anyone tell me exactly what it actually means or are they just pitching about and putting in anything but nothing too specific in case it's their fault for some reason for saying something?The system I thought the UK runs on starts at grade 1 and goes up to grade 8 for higher level education. The HNC I am studying being grade 5 a HND being grade 8 after which you are looking at a further year of study and a degree. I think GCSE is at level III but I am not sure.Any help from those who understand the UK system would be greatly appreciated as I would like to show this to my boss who over the years has done nothing but make reference to my lack of qualifications so at least I have something to slap on his desk and tell him to pick the bones out of and who knows he might even give me some cash. I have not really bothered that much with my Italian qualification as I knew that my course of study was quite frankly a shambles but having seen the British standards of qualifications I quite frankly re-evaluate it much higher than I ever did.

author: FrankE
author_rank: Regular Contributor
timestamp: March 08, 2018, 11:39:16 am
content: The UK does indeed have a shambolic system of qualifications.It's one country and there are at least two education systems, four legal systems.Separatism.The US is worse. If you want to practice law, for instance you need a qualification and licences for each state.

author: dmills
author_rank: Super Contributor
timestamp: March 09, 2018, 10:19:54 am
content: That reads to me as you having something broadly equivalent to an A level (Typically taken at about age 18 over here).Regards, Dan.

author: jpanhalt
author_rank: Super Contributor
timestamp: March 09, 2018, 10:45:44 am
content: Quote from: FrankE on March 08, 2018, 11:39:16 amNot sure why you feel obliged to slam the US and show your ignorance of our law and history.How is that related to Simon's question about the UK? Why inject nationalism into such a straight forward question?

author: Zero999
author_rank: Super Contributor
timestamp: March 09, 2018, 12:02:41 pm
content: Quote from: dmills on March 09, 2018, 10:19:54 amI agree. The certificate mentions level 3 and A-level, so it's probably equivalent.

author: Simon
author_rank: Unknown
timestamp: March 09, 2018, 01:36:28 pm
content: Okay well I can only but slap it on his desk and let him make of it what he will.
The mystery of Zach, New Zealand’s all-too-miraculous medical AI - Page 1
Forum section: electronics / general

author: sleemanj
author_rank: Super Contributor
timestamp: March 09, 2018, 04:53:37 am
content: I never cease to be amazed at how people smart in one area, in this case, doctors, can be completely incomprehensibly stupid in another...Part 1:https://thespinoff.co.nz/the-best-of/06-03-2018/the-mystery-of-zach-new-zealands-all-too-miraculous-medical-ai/Part 2:https://thespinoff.co.nz/the-best-of/09-03-2018/the-mystery-of-zach-the-miracle-ai-continued-it-all-just-gets-terribler/

author: hamster_nz
author_rank: Super Contributor
timestamp: March 09, 2018, 05:33:06 am
content: If people can believe a random email is from a Nigerian price, they will also believe you need a Cray supercomputer to be you firewall.The larger the bait, the bigger the fish I guess.
ToxiCity: life at Agbobloshie, the world's largest e-waste dump - Page 1
Forum section: electronics / general

author: MT
author_rank: Super Contributor
timestamp: March 05, 2018, 09:30:49 pm
content: All our community recycled refrigerators, etc ,goes there! It's cheaper so, the community elders said!

author: Terry01
author_rank: Frequent Contributor
timestamp: March 05, 2018, 10:01:19 pm
content: I watched a documentary on that place.The guy filming it was from London and the guys who work the dump said "yes, sure we have stuff from the UK" turns out they found a load of stuff with labels on from the guys local Currys or PC World or whatever it was. They guys stripping the copper and breaking the electronics stuff down said loads of their stuff comes from the UK.One of the guys who was burning the plastic off the copper had a cough, he went to the doctor and they told him "keep doing that and your dead real soon". No if's or but's 100% dead soon!

author: schmitt trigger
author_rank: Super Contributor
timestamp: March 05, 2018, 10:06:11 pm
content: One man's trash, is another man's treasure.

author: helius
author_rank: Super Contributor
timestamp: March 05, 2018, 10:09:26 pm
content: Shout out to local boys InnovX, you can see their backscatter XRF system in use at 2:00.

author: BrianHG
author_rank: Super Contributor
timestamp: March 05, 2018, 10:35:30 pm
content: It's spelt wrong, anyhow, here it is on google maps:https://www.google.ca/maps/place/Agbogbloshie+Scrapyard/@5.5544811,-0.2267888,407m/data=!3m2!1e3!4b1!4m5!3m4!1s0xfdf975317f69845:0x5e2823e495ad885b!8m2!3d5.5544811!4d-0.2256918How in heavens name did this place get 3.3 out of 5 stars? Is a scrap yard all that good a place?

author: schmitt trigger
author_rank: Super Contributor
timestamp: March 06, 2018, 02:40:47 pm
content: If they only were recycling metals, that would be an excellent thing to do.The problem is plastics, they are heavily bonded with some valuable metals (think electrical wire) and the only way to separate them easily is to burn them, releasing toxic fumes.

author: LaserSteve
author_rank: Super Contributor
timestamp: March 06, 2018, 03:05:20 pm
content: "Open 24 Hours"Steve

author: ebastler
author_rank: Super Contributor
timestamp: March 06, 2018, 07:42:37 pm
content: It's dreadful indeed how some of our waste gets "recycled".It's also a video from "Russia Today", so there may be a bit of political spin on top of the real ugliness.

author: Electro Detective
author_rank: Super Contributor
timestamp: March 08, 2018, 02:07:04 am
content: Quote from: LaserSteve on March 06, 2018, 03:05:20 pmEven more waste created at a waste place, supplying power and lighting after hoursCorporats can spin that up at their ~bored~ room feelgood backpat sessions as'more profit and growth with minimal extra impact'BS

author: rsjsouza
author_rank: Super Contributor
timestamp: March 08, 2018, 04:45:38 am
content: That reminded me of the episode 29 of the project "94 Elements"http://www.94elements.com/elements/29/
Oldest mail bag item found after 132 years - Page 1
Forum section: electronics / general

author: Wollvieh
author_rank: Contributor
timestamp: March 07, 2018, 02:19:12 am
content: On a West Australian beach a Perth familiy found a 132-year-old message in a bottle from Germany.Originally sent to "That crazy Aussie bloke".(However the addressee couldn't be doubtlessly proven because the label detached during the long time.)https://www.theaustralian.com.au/news/nation/worlds-oldest-known-messageinabottle-found-on-west-australian-beach/news-story/5f621cc5b1713cfe0a41012b16008d84In case that Aussie-link doesnt work:http://www.bbc.com/news/world-australia-43299283

author: Stray Electron
author_rank: Super Contributor
timestamp: March 07, 2018, 03:51:08 pm
content: Australia really is behind the times! What's next, motor cars and flying machines?

author: GreyWoolfe
author_rank: Unknown
timestamp: March 07, 2018, 06:48:39 pm
content: Quote from: Stray Electron on March 07, 2018, 03:51:08 pmmaybe even get that newfangled thing called 'lektricity even!

author: Electro Detective
author_rank: Super Contributor
timestamp: March 08, 2018, 02:11:10 am
content: If it's a beer bottle, it was cast off from East Australia
Kosovo and Serbia blamed for slow clocks - Page 1
Forum section: electronics / general

author: Shock
author_rank: Super Contributor
timestamp: March 07, 2018, 08:53:52 pm
content: "Are you running late for work and blaming your electric alarm clock? The real reason may lie in a dispute between Kosovo and Serbia, which has affected Europe's power grid. Entsoe, the body representing electricity transmission operators across 25 European countries, said bedside clocks had slowed down by up to six minutes since mid-January."Full story:http://www.bbc.com/news/world-europe-43321113

author: tooki
author_rank: Super Contributor
timestamp: March 08, 2018, 01:10:16 am
content: You're a few days late!https://www.eevblog.com/forum/chat/the-european-power-grid-has-been-running-slow/
Diode shim, Micro colider ring, Test procedure ???????????? - Page 1
Forum section: electronics / general

author: Seekonk
author_rank: Super Contributor
timestamp: March 08, 2018, 06:44:44 pm
content: I thought this was going to be some new trick on how to remove nasty potting material. I've rebuilt several modules for cars.Must have been sleeping in class that day. I don't usually promote youtube videos, but this is hilarious. It's short and high production quality. It still gets me laughing. Such attention to detail.

author: chris_leyson
author_rank: Super Contributor
timestamp: March 08, 2018, 07:54:35 pm
content: That was funny. I couldn't make this stuff up even if I tried.
What is an extra dimension good for? - Page 1
Forum section: electronics / general

author: RoGeorge
author_rank: Super Contributor
timestamp: March 06, 2018, 01:31:24 am
content: Sorcery!

author: basinstreetdesign
author_rank: Frequent Contributor
timestamp: March 06, 2018, 08:02:28 am
content: I love it!

author: ggchab
author_rank: Frequent Contributor
timestamp: March 06, 2018, 11:03:25 am
content: Fascinating

author: Stray Electron
author_rank: Super Contributor
timestamp: March 07, 2018, 04:02:43 pm
content: Quote from: ggchab on March 06, 2018, 11:03:25 amx2. Great explanation. It's very interesting that he took the newly created third dimension and folded it back into a 2 dimensional object.

author: rsjsouza
author_rank: Super Contributor
timestamp: March 07, 2018, 05:28:14 pm
content: Absolutely fantastic! Thanks for sharing. Subscribed.

author: BrianHG
author_rank: Super Contributor
timestamp: March 07, 2018, 07:06:45 pm
content: Makes you think that there may be higher dimensions than X,Y,Z like many physicists say today, that there may be possible higher dimensional beings capable of manipulating our space time with the same amount of ease as this guy deal with a flat square and flat circle.
OT Testing synthetic engine oil - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: March 08, 2018, 11:37:31 am
content: OT but very interesting from the chemistry standpoint.

author: tpowell1830
author_rank: Frequent Contributor
timestamp: March 08, 2018, 12:26:19 pm
content: What an interesting video and the testing looked rigorous enough to trust the claims!I also found this video from the same guy that I always wanted to see the head to head comparisons. Needed a little more indepth rather than banter, but adequate comparison.
Product clones - Page 1
Forum section: electronics / general

author: rhb
author_rank: Super Contributor
timestamp: March 06, 2018, 01:06:24 am
content: I question whether there are really many outright copies of other products. It provides no marketing differentiation. There are certainly lots of variants of OEM reference and evaluation board designs, but I've not seen things that were clearly copies made by another company. There are a lot of similar products which close examination shows are significantly different.The FY-6600 and JDS-6600 function generators appear to be clones. Both models are available under a variety of names. The two models are distinctly different internally. The JY uses an IC DAC. The JDS uses an R-2R ladder. I has been claimed in a JDS thread that the JDS is a newer version by the same engineer.There is a lot of private label manufacturing in the world and has been for a very long time in every type of product.Unfortunately, all this seems to make manufacturers unwilling to supply their customers with service information. The traditional Tek and HP service manuals are expensive to produce, so it's no surprise that they have moved to board swapping. Component level repair is no longer economic for a wide range of faults for anyone but hobbyists.Remember Sam's PhotoFacts? So little component level repair is done these days that there no longer is a market for such things. Robotic SMD manufacture makes non-trivial repairs uneconomic.

author: Brumby
author_rank: Unknown
timestamp: March 06, 2018, 01:17:45 am
content: Have you heard of Louis Rossmann? (He's also a member here:vze1lryy)https://www.youtube.com/channel/UCl2mFZoRqjw_ELax4Yisf6w

author: Cyberdragon
author_rank: Super Contributor
timestamp: March 06, 2018, 02:45:40 am
content: Quote from: rhb on March 06, 2018, 01:06:24 amUm...learn to use a hot air station and tweezers.Louis gets stolen schematics, possibly from the deep web or something.

author: rhb
author_rank: Super Contributor
timestamp: March 06, 2018, 03:55:11 pm
content: The sad thing is that it's much easier to fix a single board SMD instrument. You don't have to spend a week taking it apart to fix it. It's the human time required to diagnose the fault that makes component level repair uneconomic. Actually making the repairs is much easier, at least if the parts aren't too small. I suspect that 008004s are a bit of a hassle on a heavily populated board.The device pinouts place sufficient constraints on the problem that I think that generating schematics from high resolution images is probably doable. It would eat a bunch of CPU time calculating component values, but a relatively modest number of measurements should provide sufficient information. It would be a *very* complex undertaking to implement though. The basic schematic capture would be easy relative to calculating component values and selecting probe points.

author: GreyWoolfe
author_rank: Unknown
timestamp: March 06, 2018, 08:47:26 pm
content: Quote from: rhb on March 06, 2018, 01:06:24 amThe ubiquitous Hakko 936. Some are clones, some are outright fakes.
The direct Mains powered food based organic lighting and cooking thread - Page 1
Forum section: electronics / general

author: Gyro
author_rank: Super Contributor
timestamp: March 07, 2018, 09:45:12 pm
content: Given the tastefully rather suspect turn of the "Girl in critical condition after fault earth electric shock" thread...https://www.eevblog.com/forum/chat/girl-in-critical-condition-after-fault-earth-electric-shock/msg1446271/?topicseen#msg1446271I thought it would be a good idea to start this thread as a more healthy outlet for stories of direct mains powered lighting and cooking.For my contribution I'd like to add the attached, rather scientific analysis oforganic lighting from mains energized Dill (and associated) Pickles, carried out by the DEC (Digital) Western Research Laboratory back in 1989.The Report is Titled:QuoteAbstract:QuoteA masterclass in how long you can go in a document without actually mentioning the electrified pickles!EDIT: I wish I had a copy of the original version created in Runoff (the in-house distinctly non-wysiwg document generator) - this one has been transcribed to PDF.

author: james_s
author_rank: Super Contributor
timestamp: March 07, 2018, 09:57:45 pm
content: I my highschool physics class I remember the teacher doing a demonstration involving connecting 120V to a dill pickle. It lit up rather nicely, flickering and flashing for a few seconds it was connected. Then after shutting off the power another student dared him to eat it so he shrugged and took a bite. The look on his face was priceless as he almost choked and spit it out, he said he figured warm pickle wouldn't be too bad but apparently it tasted terrible.

author: Gyro
author_rank: Super Contributor
timestamp: March 07, 2018, 10:06:36 pm
content: Interesting, the DEC study indicates that the gastronomic properties of the pickles weren't affected:QuoteMaybe the secret is to remove the electrode portions!

author: james_s
author_rank: Super Contributor
timestamp: March 07, 2018, 10:45:06 pm
content: It's been over 20 years since it happened but I recall he just bit off the end so it would have been right where the electrode entered. I don't remember what the electrode was made of either, I would guess there would be some reactions going on that would result in some material from the electrode being left in the pickle.Either way, I much prefer my dill pickles cold. Cooked pickle sounds disgusting.
New electronics product development website with a focus in sustainability - Page 1
Forum section: electronics / general

author: rweiser
author_rank: Newbie
timestamp: March 05, 2018, 05:46:37 am
content: Just wanted to share with this community that I am launching my first and brand new website to help all the engineers out there that have a product idea or are currently developing one and are concerned about sustainability and creating stuff to improve human live on the planet. I offer different articles and downloadable guides to help you take your design from concept to product.It'll be great if you can check the content provided and give me some feedback. Thankshttps://developpa.io/

author: IanMacdonald
author_rank: Frequent Contributor
timestamp: March 05, 2018, 08:48:10 am
content: There is sustainability and sustainability. I would regard thought as to how electronics will be recycled as a positive step.The CO2 scam is an entirely different matter, though. If you still believe this propaganda, I suggest you go tohttp://climatemodels.uchicago.edu/modtran/and see what difference 270ppm to 400ppm makes.Unfortunately the 'green' movement is chock full of scams, and you have to be extremely careful about believing what you are told. Solar roadways, case in point. Also see the other thread about how 'greens' are promoting wastemaking in the auto industry.It is known that Greenpeace have vested interests in the wind energy industry. Also, UK politicians in the energy sector have been given directorships in renewables companies so as to distort the politics in their favour. It basically couldn't get more corrupt, and if it's corrupt, who is benefiting? The environment? In your dreams, mate!

author: DenzilPenberthy
author_rank: Frequent Contributor
timestamp: March 05, 2018, 02:25:44 pm
content: Piss off Ian, no one is interested in your tinfoil hat bollocks.

author: rweiser
author_rank: Newbie
timestamp: March 06, 2018, 08:54:00 am
content: Hello Ian,Yes, there is a lot of BS and scam surrounding the word sustainability, but there is also a lot of stuff to learn and apply in the industry. I am hoping for my articles to be rigorous enough but also easily readable for students and young engineers.
Cable Porn - Page 1
Forum section: electronics / general

author: IanB
author_rank: Super Contributor
timestamp: March 04, 2018, 02:44:05 am
content: Snagged from a YouTube video.Conductor size 4 x 25 mm2: that's chunky cable! Must be fun to terminate thatHey, look: made in the UK! We can make stuff after all. It hasn't all gone to ChinaBonus points if you recognize what video I did the screen grab from...

author: AlfBaz
author_rank: Super Contributor
timestamp: March 04, 2018, 03:04:52 am
content: Quote from: IanB on March 04, 2018, 02:44:05 amSorry, but LOL. As an electrician, most hydraulic crimp sets that I've worked with, 25mm2would probably be the smallest die!

author: Ampera
author_rank: Super Contributor
timestamp: March 04, 2018, 04:12:59 am
content: That's bigger than my cable.

author: VK3DRB
author_rank: Super Contributor
timestamp: March 04, 2018, 04:19:37 am
content: And we all thought you were advertising a new cable channel on Dave's EEVBLOG.These cables should clearly be the the Sealed Section of the EEVBLOG, under the title "Special Interests".

author: BradC
author_rank: Super Contributor
timestamp: March 04, 2018, 04:23:26 am
content: We had Prysmian manufacture some custom low voltage security cable for a client. The factory was in Spain and the cable was superb. Love their stuff.

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 04, 2018, 05:23:18 am
content: I had to look up just how big 25mm^2 is. In short, it's slightly smaller than 3 AWG.

author: tautech
author_rank: Super Contributor
timestamp: March 04, 2018, 06:22:40 am
content: Quote from: NiHaoMike on March 04, 2018, 05:23:18 amYep, plddle arse small, just one size up from most domestic 60A single phase mains here.100m or so from the powerco feed and you'll likely need 100mm2to meet or better voltage drop regs.

author: rstofer
author_rank: Super Contributor
timestamp: March 05, 2018, 01:14:25 am
content: Still pretty small! 100 mm2is only about 4/0 in the US and that's good for about 265A (90 deg C). It is fairly common in industry to use 500 MCM which is about 253 mm2and good for around 400A.With aluminum cables, 750 MCM is common and that's about 380 mm2also about 400A.http://www.ihiconnectors.com/AWG%20wire%20sizes.htmhttp://www.armstrongssupply.com/wire_chart.htm

author: Gregg
author_rank: Super Contributor
timestamp: March 05, 2018, 03:45:08 am
content: Enclosed picture is of paralleled 350MCM cables with proper crimps.

author: rstofer
author_rank: Super Contributor
timestamp: March 05, 2018, 04:57:49 am
content: Lovely work!

author: FrankE
author_rank: Regular Contributor
timestamp: March 05, 2018, 06:04:15 am
content: 25 is domestic meter tails.I'd to pull in 4 x 4core 300 once. The 4 cores were bonded into one lug for a TP&N.

author: gildasd
author_rank: Frequent Contributor
timestamp: March 05, 2018, 09:58:22 pm
content: 16 times 4cm2 per motor (it’s a ship) as multiple “small” cables are easier to route than a big one.700V, 2500kW mind you.But that’s peanuts compared to what we lay!
dang storm - Page 1
Forum section: electronics / general

author: firehopper
author_rank: Frequent Contributor
timestamp: March 05, 2018, 08:40:44 am
content: well that bomb nor'easter took out my power on saturday, been running on a generator eversince. power is expected to be back on by 11pm monday night(tonight) bleah!

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: March 05, 2018, 02:43:40 pm
content: A tornado last night near my house:

author: Ampera
author_rank: Super Contributor
timestamp: March 05, 2018, 04:21:10 pm
content: We got ~16 inches of snow just about, and over half of it is gone by now. Stupid weather. The kicker: It's supposed to snow in two days.

author: Zero999
author_rank: Super Contributor
timestamp: March 05, 2018, 04:30:26 pm
content: We've had the worst winter for around 8 years. It was cold and snowed in the UK at the end of last week. Fortunately the snow has now gone, other than a few patches in shaded areas and it didn't freeze last night.

author: rrinker
author_rank: Super Contributor
timestamp: March 05, 2018, 04:42:50 pm
content: This was the craziest thing - all around me, there was snow, cars playing bumper car on the roads. In my immediate area - not one flake of snow!

author: BrianHG
author_rank: Super Contributor
timestamp: March 05, 2018, 08:38:36 pm
content: Here in Montreal, we have had a consistently absurdly warm above freezing every day for 2 weeks, and it's expected to continue for 2 more. It's like we are already in April. I guess I'm just in some location with some weird warm period. The daily temp should be around -5 to -10, not +3 to +8.Note that storms to the south of us seem to make our winters warmer here further up north on the east coast of North America.
After update of Windows 10 HP scan jet 6300c stopped working - Page 1
Forum section: electronics / general

author: Physikfan
author_rank: Regular Contributor
timestamp: March 05, 2018, 11:15:04 am
content: Under Windows 10, the HP Scanjet 6300c worked without problems.After an automatic update to a new version of Windows 10, the scanner stopped working.Despite much work, I could not use the scanner anymore.Please, does anyone have any advice?regardsPhysikfan

author: tooki
author_rank: Super Contributor
timestamp: March 06, 2018, 03:38:56 am
content: I’ll bite. This is an electronics forum, not a computer forum. Some overlap may exist, but IMHO this question really is more appropriate for a computer forum, potentially even one more specific to photography or graphics.

author: Physikfan
author_rank: Regular Contributor
timestamp: March 06, 2018, 08:11:48 am
content: I got a hint to undo the update from Windows 10 to the previous version from Windows 10.I was lucky.After restoring to the previous Windows version 10, the HP 6300C scanner is running again with the same program and driver as before the update.
What would  microscopic amount of bose Einstein condensate look like? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: March 04, 2018, 06:59:24 pm
content: Can they make that much that we could see it? Would you be able to see it? would it have edges? Light shined on it would get trapped inside and slowly pour out the other side I think. Would it behave like mater as in be a solid object or would it flow since the atoms have no defined position? For some reason I can't picture beside wavy lines on a white board as bloop noises play like on the PBS special about it. I wonder if that would ever exist in nature.Imagine if we put as much effort into things like guns and war into figuring this stuff out? We would be on other planets several hundred years ago and live to be 200 years old.
Giant D'Arsonval movement. - Page 1
Forum section: electronics / general

author: lmester
author_rank: Regular Contributor
timestamp: March 04, 2018, 09:06:59 am
content: Have you used an analog multimeter? If so, you were likely using a tiny version of this D'Arsonval movement.My "Giant pot" post started this. I was placing my "Giant pot" on the junk shelf that holds equipment that I'll probably never use. Thanks to some replies to my post, I now know that my "giant pot" is actually a rheostat.This giant D'Arsonval type meter movement was sitting on my junk shelf. I'd forgotten about it. It was used to drive the pen in a chart recorder.In the past, I didn't have any equipment that I could easily use to drive this thing. It hasn't been powered up for at least 40 years.A few years ago I purchased and repaired a Wavetek 178 waveform synthesizer. I think of it as a fancy function generator. I set it for an output voltage of 500mV RMS with the frequency set to 250mHz (.25 Hz).My Giant D'Arsonval movement was alive and running! After a few minutes of running, the armature was banging into the stops. It took a few minutes to get it's ancient mechanical components loosened up. I then reset the voltage to 350mV RMS. This voltage gave it a nearly full scale response without hitting the stops.Attached are some pictures of this giant D'Arsonval movement and a Youtube video of it running.Do you have any giant sized versions of normally small electronic or electromechanical devices? please post some pictures!here is aYoutube video of this giant running:https://youtu.be/ITFho7La0Q8