hybridfree/eevblog-posts huggingface dataset:
Pipe thread - Page 1
Forum section: electronics / general

author: gaminn
author_rank: Frequent Contributor
timestamp: September 02, 2019, 08:46:08 am
content: Hi,this is completely off topic. I'm buying a pneumatic cylinder for my project on aliexpresshttps://www.aliexpress.com/item/32947595658.html. It has PT1/4 thread and I'm not sure what PT stands for. Is it NPT thread, or BSPT thread (G or R)? Or any other thread? Do you think it is compatible with this 1/4 fittinghttps://www.aliexpress.com/item/32908954211.html?

author: soldar
author_rank: Super Contributor
timestamp: September 02, 2019, 02:14:23 pm
content: Why don't you ask the seller? It's the only way to be sure of what he is selling.In my experience water pipe threads tend to be tapered while hydraulic connections tend to be parallel.

author: tautech
author_rank: Super Contributor
timestamp: September 02, 2019, 10:51:44 pm
content: Quote from: soldar on September 02, 2019, 02:14:23 pmYep but this ram is air not hydraulic.It's most probably parallel threaded and the flats on the connections imply sealing washers are used which of course there are many types.Most of the imperial thread types are the same pitch and interchangeable unless it's some metric denomination.https://trimantec.com/blogs/t/thread-identification-guidehttps://mdmetric.com/tech/tict.htm

author: TerraHertz
author_rank: Super Contributor
timestamp: September 03, 2019, 01:49:42 am
content: A quote from a text I saved sometime:"How can you identify BSPT / PT and NPT ? NPT has 60 degree thread angle, while BSPT or PT has 55 degree thread angle. Or I could say NPT has sharper teeth than BSPT/PT. The pitch between them are also different. Please never try to mate different thread system together or you delicate equipment will be damaged irreversible."
Beware the Snood! - Page 1
Forum section: electronics / general

author: TerraHertz
author_rank: Super Contributor
timestamp: September 01, 2019, 11:19:12 am
content: This is a real sign:It's on a panel for a large rack-mounted cinema projector. Apparently 'snood' refers to the aperture or reflector from which the beam of light emerges. Several kilowatts and quite directional.I've been given the 'rack' and most of the projector, for pull-apart fun. Minus the light source, lens and lower film spool box, so it's really just a bunch of servo motors and mechanics, in a huge enclosure that is way too big to keep around. Into parts it goes. The 'rack' turned out to be completely non-standard and useless for 19" gear so it's off to Sims metal recycling on my next trip there.

author: Cubdriver
author_rank: Unknown
timestamp: September 01, 2019, 12:08:34 pm
content: Perhaps a portmanteau of snoot and hood? Regardless, probably a good warning to heed if photons are emerging therefrom in great quantity.-Pat

author: tggzzz
author_rank: Super Contributor
timestamp: September 01, 2019, 01:15:31 pm
content: At first I thought the title was referring to Carly Fiorina, since it would be an entirely justified sentiment.Then I checked, and her maiden name was Sneed.
I think Louis Rossmann wins :D - Page 1
Forum section: electronics / general

author: BFX
author_rank: Frequent Contributor
timestamp: August 31, 2019, 07:01:11 pm
content: Apple to supply parts to independent repair shops for first time.https://www.reuters.com/article/us-apple-repair/apple-to-supply-parts-to-independent-repair-shops-for-first-time-idUSKCN1VJ1F1And ...But it's step forwardAnyway I have still Microsoft Lumia mobile

author: floobydust
author_rank: Super Contributor
timestamp: August 31, 2019, 07:09:51 pm
content: For the Apple to move, hell hath frozen over. Such a stubborn company.But it's only for iPhones, not Mac laptops. The right-to-repair legislation still needs to happen.

author: BFX
author_rank: Frequent Contributor
timestamp: August 31, 2019, 07:37:55 pm
content: There was some proposal from European Union that every device should have replaceable battery but I don't know what is the state now.May be they reject that because some devices should be water resist and so.

author: SiliconWizard
author_rank: Super Contributor
timestamp: August 31, 2019, 09:33:11 pm
content: Just buy a Fairphone:https://www.fairphone.com/en/

author: KL27x
author_rank: Super Contributor
timestamp: August 31, 2019, 10:14:53 pm
content: QuoteThis sounds like a good idea, but lots of devices are simply made to be disposable and inexpensive. Unless "replaceable" means 1 hour with lots of specialized tools, it is not realistic to make all batteries replaceable. Li ion changed the game. When properly implemented, they can last a very long time, and the battery dying might not be a significant factor in device life.

author: Mr. Scram
author_rank: Super Contributor
timestamp: August 31, 2019, 10:17:33 pm
content: Quote from: KL27x on August 31, 2019, 10:14:53 pmIt not just about replacing but it's also about conveniently recycling. Eliminating disposable items isn't the worst thing in the world.

author: langwadt
author_rank: Super Contributor
timestamp: August 31, 2019, 11:32:31 pm
content: Quote from: floobydust on August 31, 2019, 07:09:51 pmand from other videos about it, it seems like some thing are somewhat pointless, $117 for a screen for phone sold used for $120

author: scatterandfocus
author_rank: Regular Contributor
timestamp: September 01, 2019, 01:01:04 am
content: I love repairable things, so long as they are truly repairable. I think it never crosses most people's minds how much e-waste is generated and resources wasted on electronics and other goods that are planned to be obsolete (upgrade your phone every year, hardware subscription), have no service manuals available, parts aren't available or are too high cost. The wheels of industry have to keep turning at high speed.

author: amyk
author_rank: Super Contributor
timestamp: September 01, 2019, 02:36:27 am
content: Quote from: floobydust on August 31, 2019, 07:09:51 pmApple is just trying to push against that by doing a "see, we sell parts too now" --- conveniently omitting the fact that to buy parts, you still have to go through their stupid "certification" which no doubt means ceding all control to Apple again.
Ferrite Chokes - Page 1
Forum section: electronics / general

author: @rt
author_rank: Super Contributor
timestamp: August 29, 2019, 01:51:59 am
content: HiJust a question that’s been on my mind, re: ferrite core chokes that appear on the ends of cables, and inside PSUs, etc.Why do they not all have a shorted turn of wire through them as well? ie. a shorted secondary.Would this not increase their impedance without changing their plot in every case?

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 29, 2019, 02:21:32 am
content: Huh?How would a low impedance make a high impedance?What "plot" would be unchanged?Tim

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 29, 2019, 02:38:13 am
content: The kind of ferrite used for those is already lossy enough to damp out resonances. When using a regular inductor core for a choke, adding a shorted turn can indeed make it better as a choke.

author: @rt
author_rank: Super Contributor
timestamp: August 29, 2019, 02:39:58 am
content: The frequency vs amplitude plot for the particular ferrite material.I meant higher impedance for RF on the cable that passes through the core. Low impedance for the shorted secondary.

author: @rt
author_rank: Super Contributor
timestamp: August 29, 2019, 02:41:20 am
content: Quote from: NiHaoMike on August 29, 2019, 02:38:13 amThere are situations where amateur radio people feed a coax through five to ten cores to prevent current flow back to the radio room on the outside of the coax sheath,and wire is cheaper than ferrite.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 29, 2019, 03:23:49 am
content: Yeah, the equivalent circuit is a number of coupled inductors. The inductors corresponding to the wires in the cable are relatively closely coupled. The magnetizing impedance of the core is the impedance of those inductors; it acts in series with the cable as a whole.By adding a shorted turn, you add one more coupled inductor, and connect a very low impedance across it. It may not be as well coupled as the inductors of the cable, but the effect is still shorting out the core impedance, and therefore reducing the series impedance given to all wires inside the core.In the extreme case, the core might be wrapped by a complete toroidal metal shell, in which case the core effectively doesn't exist at all, it is shielded from the wires. Clearly in this case it is no different from running the cable through a length of pipe, which will only have a transmission line impedance (peaks and valleys at resonant frequencies; for most core sizes, this will be ~GHz), and nothing at low frequencies.Tim

author: @rt
author_rank: Super Contributor
timestamp: August 29, 2019, 03:18:11 pm
content: I forgot my antenna analyser might as well be a signal generator.Yes the core attenuates the signal on it’s own, and a couple of turns shorted makes it as if the core isn’t present.Not exactly what I anticipated.Cheers
Emergency landing due to "defective flux capacitator" - Page 1
Forum section: electronics / general

author: cpuerror
author_rank: Regular Contributor
timestamp: August 29, 2019, 12:23:08 pm
content: Hopefully the forum parses this ok..<iframe src="" width="560" height="315" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allowFullScreen="true"></iframe>
How do I findmy own posts - Page 1
Forum section: electronics / general

author: onedumbquestion
author_rank: Contributor
timestamp: August 31, 2019, 11:10:48 pm
content: How do I find my own posts?

author: Addicted2AnalogTek
author_rank: Frequent Contributor
timestamp: August 31, 2019, 11:14:17 pm
content: Profile > summary > show posts (it's under your user name)... or just click on your username to get to the summary

author: soldar
author_rank: Super Contributor
timestamp: September 01, 2019, 08:26:40 am
content: https://www.eevblog.com/forum/profile/?area=showposts;u=599673
Self-introduction - Page 1
Forum section: electronics / general

author: Haloe
author_rank: Newbie
timestamp: August 28, 2019, 10:52:41 am
content: Hi, everyone!I’m a student from China. I really like electronic products. It’s a honor to meet everyone in this forum. I want to learn more about electronic knowledge and make more friends here. I hope we can communicate each other in the future. Looking forward to our common progress!

author: Mr. Scram
author_rank: Super Contributor
timestamp: August 28, 2019, 11:02:41 am
content: Quote from: Haloe on August 28, 2019, 10:52:41 amWelcome Haloe! What is it you study and what is your experience with electronics? Don't worry if it's not a lot, everyone and every level is welcome here.

author: Haloe
author_rank: Newbie
timestamp: August 28, 2019, 11:47:48 am
content: Nice to meet you,Mr. Scram. My major is Electrical Engineering and Automation. I just read some electronic books. Thank you very much

author: Brumby
author_rank: Unknown
timestamp: August 28, 2019, 01:28:31 pm
content: I'll second the welcome. We hope you enjoy participating here.Just remember that we have the full range of skills and experience from newbies who have yet to put together a circuit to retirees that have spent decades in various positions. There is alotof knowledge floating around.We also have the usual challenges you will find with online forums, but things rarely get out of hand. This place is notably well behaved - which is something that you will come to appreciate.So - enjoy ... and ask questions. Show us you are willing to make an effort and you might be surprised at the help that you could find freely offered.

author: SiliconWizard
author_rank: Super Contributor
timestamp: August 28, 2019, 03:27:39 pm
content: Aloha Haloe.

author: onesixright
author_rank: Frequent Contributor
timestamp: August 28, 2019, 06:37:28 pm
content: 欢迎Let's see if that translator works!If not, welcome!

author: Haloe
author_rank: Newbie
timestamp: August 29, 2019, 03:28:20 am
content: OK. I'm so happy. Thank you all, my friends.
Help  me with this current leakage confusion.  - Page 1
Forum section: electronics / general

author: radhika
author_rank: Regular Contributor
timestamp: August 27, 2019, 07:54:35 pm
content: Why current leakage take place in circuit? How can we stop it?I know that leakage current is the current that flows to ground through unintended paths in a circuit. Also, its around 350mA.My intention behind this question is, why charged power bank got discharged soon when in use or also, it get discharged too when not in use for long time.Why this happen? Is this is because of the leakage current? And what modification do we make to cure this problem?

author: radhika
author_rank: Regular Contributor
timestamp: August 28, 2019, 03:45:01 pm
content: Quote from: radhika on August 27, 2019, 07:54:35 pmCan anybody going to answer this?

author: ataradov
author_rank: Super Contributor
timestamp: August 28, 2019, 04:00:19 pm
content: You have not provided any useful information.What power bank? What current did you measure?

author: madires
author_rank: Super Contributor
timestamp: August 28, 2019, 04:03:01 pm
content: Sorry, but if you like to get an answer please provide more details about the circuit. And please don't start any more threads just linking to this one. It's annoying!

author: IanB
author_rank: Super Contributor
timestamp: August 28, 2019, 04:16:20 pm
content: Quote from: radhika on August 27, 2019, 07:54:35 pmIt's been mentioned a few times around here, butthere is no ground. When there is a battery there is "+" and there is "−". Current can flow from + to − either outside the battery (through the external circuit), or inside the battery (called self-discharge). Either way it will discharge the battery, intentionally or unintentionally.350 mA seems like a very large amount of leakage current (very, very large). It would imply a major fault in the circuit or in the battery. The way to cure it is to locate the fault and fix it.
This seems an appropriately arbitrary number to celebrate - Page 1
Forum section: electronics / general

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 28, 2019, 05:21:39 am
content: Cheers all!Tim

author: SparkyFX
author_rank: Frequent Contributor
timestamp: August 28, 2019, 05:40:05 am
content: c0n6r47ul4710n5!

author: bitseeker
author_rank: Super Contributor
timestamp: August 28, 2019, 06:04:32 am
content: Fun!
Google search Breadcrumbs in url results - Page 1
Forum section: electronics / general

author: MrMobodies
author_rank: Super Contributor
timestamp: August 27, 2019, 12:12:16 am
content: I thought it was an issue with the page load yesterday as it went away for a while but now it has returned.As opposed to this a picture I uploaded in a dodgy technology thread over a months ago:It also does it with the non javascript version.I can't seem to find much about this change.I see DuckDuckGo hasn't done this yet.Was it done to decorate it to make it "look" nicer?What do you think?

author: amyk
author_rank: Super Contributor
timestamp: August 27, 2019, 12:22:55 am
content: Looks stupid and almost certainly related to their desire to destroy URLs completely...Mine still looks OK, try changing your user-agent to something obscure and turn off JS.

author: jesuscf
author_rank: Frequent Contributor
timestamp: August 29, 2019, 02:56:48 am
content: Is this some kind of joke that my Firefox is too AdBlocker Ultimate to understand?
What do you think about this 3D model of PCB? - Page 1
Forum section: electronics / general

author: jamesblunin
author_rank: Newbie
timestamp: August 27, 2019, 09:03:23 am
content: Thanks for everyone help me.Now my new project 3D model is done.I build it with my teacher, and this project takes me a month to do it.Hooo! Feel free to leave a comment.:cool::cool::cool::cool::cool::cool::cool:I also hope you can join my poll looools: -DD

author: daqq
author_rank: Super Contributor
timestamp: August 27, 2019, 09:05:37 am
content: QuoteThat it would look better if the attachment worked and was not a link to another forum.

author: GlennSprigg
author_rank: Super Contributor
timestamp: August 27, 2019, 11:26:49 am
content: James... Save your 'image' separately for upload, or place it in the likes of 'imgur' (imgur.com)and then upload or post that link. You sound enthusiastic, and that's good! Try again!

author: jamesblunin
author_rank: Newbie
timestamp: August 28, 2019, 12:35:33 am
content: Thanks for your share this with me. Cause this question I just post at all about circuit forum, and I didn't find where I can upload a pic. Sorry to let you get bord.
how does board fab locate components? - Page 1
Forum section: electronics / general

author: vixo
author_rank: Regular Contributor
timestamp: August 22, 2019, 03:46:52 pm
content: I'm having some pre-fabricated boards made of a project I designed, at PCB cart in China. I have made a BOM with all the relevant components, but - might be a stupid question - how do they know which components go where? I have component designators (R1,R2 etc) on the silkscreen but surely they don't just look at those? Specifically I am concerned about a diode footprint I made - how will they know which way round the diode goes? Is there another file I will have to supply them with?

author: Ice-Tea
author_rank: Super Contributor
timestamp: August 22, 2019, 03:57:47 pm
content: Normally, you should have a P&P file. Either seperate or combined with your BOM. This tells the center (X,Y) of the component and the rotation.Diodes and other components that need might otherwise be ambiguous need to have some polarity/pin1 marker on the board or accompanying design file.

author: vixo
author_rank: Regular Contributor
timestamp: August 22, 2019, 05:59:13 pm
content: thanks!

author: ajb
author_rank: Super Contributor
timestamp: August 23, 2019, 08:11:41 pm
content: Many assemblers will request a drawing with all of the designators in place in addition to the P&P file, I usually export this as a gerber for our usual assembler.

author: KL27x
author_rank: Super Contributor
timestamp: August 26, 2019, 11:32:56 pm
content: QuoteIn the placement file, you can draw the diode as a symbol. Because it's not going to printed, you can draw over anything. For a LED, you can typically put a dot on the cathode end, by convention.The most weirdest one I have had to deal with was a side facing LED with extra pads on top that were symmetrical with the ones on the bottom, so it could be placed in four different orientations. I drew outline of the component AND put a dot on the cathode end AND drew some rays to show the direction the lens should face. They ok'd it, built it, and it came out wrong. They assumed I knew what I was doing and that the LED would come out of the tape in the correct orientation. I didn't; it didn't. But they fixed it for free, because I had sent them a fairly unequivocal placement file, and they didn't ask for any clarification.Live and learn. In the future, on a weird part like this, I would order a sample of part in cut tape and make sure the PCB conforms to how the component actually comes out of the tape. (And even better, avoid using any component like this, because it makes absolutely no sense for production).Quotecome to think of it, I have never included "origins" layer in my placement file, and I should start doing that. I've never been asked for it, yet.Many professional fab will require you to ok either a production sample or a picture of the first batch of assembled boards. So you're possibly still not out of the woods, even if you provide correct placement file. This is great, to avoid further delay, but the onus is now back on you.
1950s video: the electric house of the future - Page 1
Forum section: electronics / general

author: soldar
author_rank: Super Contributor
timestamp: August 25, 2019, 06:49:58 pm
content: They didn't get much right. Nobody could have imagined computers and the Internet. Still, it's fun to watch what the 1950s were like because the video shows nothing like what the future would be like but shows very well what the 1950s were like.Westinghouse All Electric House:

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 25, 2019, 07:05:24 pm
content: A lot of the home automation concepts are surprisingly similar to what's commonly done today, just with the technology of the time.
I lost something on here: The "new replys to your posts" and... - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: August 21, 2019, 11:06:03 am
content: New posts since last visit" buttons/links. In fact I always clicked those in case I forgot about threads of just want to read the new posts on the forum. Seems really weird that they went away.

author: magic
author_rank: Super Contributor
timestamp: August 21, 2019, 11:44:45 am
content: Here, have onehttps://www.eevblog.com/forum/unreadreplies/They are still there for me, top left corner.

author: Beamin
author_rank: Super Contributor
timestamp: August 21, 2019, 12:14:06 pm
content: Quote from: magic on August 21, 2019, 11:44:45 amThis is Microsoft edge. Yes I know but its spell check is really good and you people would hate me with out it.Anyone else running edge? It just did an update...

author: tooki
author_rank: Super Contributor
timestamp: August 24, 2019, 02:31:39 am
content: Quote from: Beamin on August 21, 2019, 11:06:03 amYou accidentally clicked the (completely pointless) flippy triangle that hides it. Locate the big “EEVblog Electronics Community Forum” header at the top of the page. On the same line, look at the right side of the page. On the light blue background, there is a white arrow. Click it.

author: Beamin
author_rank: Super Contributor
timestamp: August 25, 2019, 07:02:43 pm
content: Quote from: tooki on August 24, 2019, 02:31:39 amThank you soooo much!!!I would have never seen that. I use a touch screen so I bet I touched it with shaky hands being none the wiser. I was using a link and refreshing such a PITFA
Australian race superior in any aspect - Page 1
Forum section: electronics / general

author: 2N3055
author_rank: Super Contributor
timestamp: August 26, 2019, 07:45:01 pm
content: That's propper crazy

author: BrianHG
author_rank: Super Contributor
timestamp: August 26, 2019, 08:18:09 pm
content: You have got to be shitting me....

author: boffin
author_rank: Unknown
timestamp: August 26, 2019, 08:54:18 pm
content: Don't want to publicize this too much, because next thing you know they'll be suggesting racing these on the Snaefell Mountain Course (which is nuts enough already).

author: BillB
author_rank: Unknown
timestamp: August 26, 2019, 08:56:15 pm
content: That's awesome! I've got a couple of motorcycles and have been looking for ways to spice-up my commute!
LCD sources in Australia - Page 1
Forum section: electronics / general

author: DTJ
author_rank: Super Contributor
timestamp: August 24, 2019, 12:53:32 pm
content: I was using some 16x4 LCD displays ($15) from RS but they are no longer stocking them and they want $35 for the replacement part.It's nothing fancy just a reflective 4 line by 16 character 5V display with the parallel interface made by Winstar.Digikey, Mouser, E14 and RS don't have much and anything suitable is too expensive.Nothing at Altronics or Jaycar.Any ideas on anAussiesupplier who may have something suitable on the shelf?Cheers.

author: ebclr
author_rank: Super Contributor
timestamp: August 25, 2019, 12:26:50 am
content: Why Aussie ?This thing is a commodityhttps://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190824162601&origin=y&SearchText=LCD2004&switch_new_app=y

author: wilfred
author_rank: Super Contributor
timestamp: August 25, 2019, 12:51:10 am
content: There is this one I found. Maybe it's suitable.https://www.wiltronics.com.au/product/19416/lcd-2004-20x4-character-blue-backlight-lcd-module-arduino-compatible/

author: DTJ
author_rank: Super Contributor
timestamp: August 25, 2019, 01:22:54 am
content: Quote from: wilfred on August 25, 2019, 12:51:10 amThanks Wilfred - I need a grey text reflective with no back light. Thanks anyway - I checked their site to see if they had something more suited but they didn't.Quote from: ebclr on August 25, 2019, 12:26:50 amI get your point Ebclr - I need them in a couple of days and cannot afford to wait. Once I get over this hurdle I should stockpile a box of aliexpress units.I've only used Aliexpress once, any tips on identifying a good supplier??

author: beanflying
author_rank: Super Contributor
timestamp: August 25, 2019, 01:38:08 am
content: Australia 'local' sources suck in the mainThere is a reason I keep a bunch more than strictly needed for upcoming jobs in particular as my nearest bricks and mortar shop is about 3 hours drive each way.http://rockby.com.au/SearchresSql_12.cfm?Searchkey=lcdLink to the RS one and I will see what I have?

author: beanflying
author_rank: Super Contributor
timestamp: August 25, 2019, 02:07:02 am
content: Digikey and Mouser on their standard 'free' shipping run from 5-8 days to me generally. Three day options won't be if like me you are out of a State Capital in Oz at least one more and sometimes two.

author: DTJ
author_rank: Super Contributor
timestamp: August 25, 2019, 01:04:52 pm
content: Thanks BeanFlying, BlueSkull.I'd actually checked rockby to see if there was anything suitable but didn't have any luck.I re-trawled RS/Mouser/Digikey/E14 and ended up finding one at E14 that should do the job. I've ordered a few to test. Fingers crossed.After the dust settles I think I'll take the advice here to grab a box full from Aliexpress.
YouTube subtitles - Page 1
Forum section: electronics / general

author: JonPyro
author_rank: Regular Contributor
timestamp: August 24, 2019, 02:38:36 pm
content: Cracker from Dave's latest video, Dave always gives real life advice.

author: tooki
author_rank: Super Contributor
timestamp: August 24, 2019, 08:10:06 pm
content: Auto-generated captions are always good for a laugh.One YT channel I watch,emmymadeinjapan, involves a Japanese-American woman who mostly cooks things. And in Japanese tradition, she says "itadakimasu" before eating, though the channel is in English. YT fails in spectacular fashion at auto-transcribing this, producing captions like "eat the documents", "eat the vacuum as", "eat the lucky moss", and above all "eat the ducky moss", which she is offering aslimited-run t-shirts! (I have mine!)

author: amyk
author_rank: Super Contributor
timestamp: August 24, 2019, 09:01:51 pm
content: Looks like things haven't improved in 9 years...https://www.eevblog.com/forum/blog/eevblog-112-gsm-vs-the-fluke-87v-multimeter/msg17546/#msg17546...and on a similar note, guess which video this one came from:

author: tooki
author_rank: Super Contributor
timestamp: August 24, 2019, 10:52:58 pm
content: Quote from: amyk on August 24, 2019, 09:01:51 pmEasy:
Pixel 3a - First impressions - Page 1
Forum section: electronics / general

author: Zucca
author_rank: Unknown
timestamp: August 30, 2019, 10:09:25 am
content: - The G search bar is eating too much pixels screen, it is not easy to get rid of it.https://www.reddit.com/r/GooglePixel/comments/836boh/how_to_remove_the_google_assist_search_bar/- in the home screen you can't deactivate the clock and datehttps://support.google.com/pixelphone/thread/6146082?hl=en- Connected to an VPN-WIFI (which has no internet by default) and a OpenVPN Tunnel working ok, the stupid phone is still using the mobile data. I have to manually turn off mobile data to use the VPN tunnel.In my old S8, everything was ok.What a pile of garbage.What android phone do you suggest,fairphonelooks interesting to me.
Forum acclamation - Page 1
Forum section: electronics / general

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: August 23, 2019, 10:36:52 am
content: Hello lovely people,I just wanted to leave you all with some virtual hugs today!As someone that has been part of lots of different forums, news groups and various other conglomerates of people over the years, I really appreciate how nice and welcoming this community is. Especially, since the user base is pretty massive.This is something I usually only see in smaller groups and as soon as a critical mass is reached, the tone and overall feel of such group tends to tip. That is typically the moment when I tend to leave, because I do not feel "at home" anymore.Thank you Dave and your team of moderators for providing us with a place to share ideas, ask questions and thrive on tons of knowledge!Thank you to everyone that is contributing here, taking care of their fellow electronic enthusiasts, volt nuts, n00bs and interested bystanders.It is really rare to find such place of constructivity and help rather than affective wankery.Keep up the good spirit and good day to y’all!

author: Zucca
author_rank: Unknown
timestamp: August 23, 2019, 11:12:23 am
content: +1TEA is the best thread.frozenfrogzare you German for real?

author: Jajaho
author_rank: Contributor
timestamp: August 23, 2019, 11:22:10 am
content: I absolutely agree.I love to come here as well because for some reason this place attracts friendly and knowledgeable people.I also just wanted to say thanks to Dave, the admins, supporters, contributors and everybody else here that helped this place to become such a wonderful place for electronic enthusiast.Thank you very much.Jakob

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: August 23, 2019, 11:27:02 am
content: Quote from: zucca on August 23, 2019, 11:12:23 amYes, I am.

author: Jajaho
author_rank: Contributor
timestamp: August 23, 2019, 12:43:30 pm
content: Incredible, never have seen one in the wild before.

author: frozenfrogz
author_rank: Frequent Contributor
timestamp: August 23, 2019, 02:26:47 pm
content: ¯\_(ツ)_/¯

author: SiliconWizard
author_rank: Super Contributor
timestamp: August 23, 2019, 03:24:44 pm
content: Quote from: Jajaho on August 23, 2019, 12:43:30 pm
on demand headset - assistance reach Bose on that one   - Page 1
Forum section: electronics / general

author: eevblogfan
author_rank: Frequent Contributor
timestamp: August 25, 2019, 04:53:25 pm
content: hello allI have the need to find existing product and if need be to have prototype of one within 1 week time to several week tops (talking about the prototype only)I wish to contact bose to proceed with themfor that I need to know what I am going in toI should say that specs are going to be discussed and are only general nowthe headset is going to be operative in noisy environment, there is need for wireless communication and high quality audio with no line interruptions- 30 to 200 devices operating in 300 to 500^2m - simultaneously without interfering with one another- above 15Hrs of operation - rechargeable battery- at least 30M of rangethat should be sufficient to work with right nowbudget for prototype is no problemif someone know other companies who can deliver I would appreciate letting me know either here or PMplease let me know if any other information is necessaryP.S: I didn't manage to call them send them SMS or catch them on email, guidance here is much appreciated

author: bob91343
author_rank: Super Contributor
timestamp: August 25, 2019, 05:34:37 pm
content: I strongly advise not to deal with Bose. I have had trouble with them; they don't support their products.I asked for help in repairing a unit of theirs and was told they would not be willing to deal with me. I asked for price on a part and they said no, they only want to sell a new unit of a different model. Their offer of trade-in was so small as to be a joke.Bose isn't exactly what I would consider a company seeking to boost their reputation. They spend their money on advertising products that they won't support. And I feel that the prices are far too high for what they are selling.I don't know if my experience was typical but it certainly didn't leave a good impression.

author: m98
author_rank: Frequent Contributor
timestamp: August 25, 2019, 05:49:34 pm
content: There are already products suited for similar applications:https://www.riedel.net/de/produkte/intercom/bolero/

author: eevblogfan
author_rank: Frequent Contributor
timestamp: August 25, 2019, 06:07:41 pm
content: Quote from: m98 on August 25, 2019, 05:49:34 pmthanks I will send them email and see how it can contributemy goal is integrated unit, so beltpack is not what I am looking for as a solution
Sony Video Walkman GV-9E Pal version LCD problem - Page 1
Forum section: electronics / general

author: rcpilot23
author_rank: Newbie
timestamp: August 18, 2019, 02:24:11 am
content: I have a Sony video walkman GV-9 pal version which I have restored and all works except the LCD works but the picture colours are inverted like darks shows as light and for eg whites show as black. Video out is perfect. any ideas. I have replaced all the caps but it was the same before started. I have tried another lcd display but only part I have not tried is the rear backlight board as this one is a PAL version with the delay line on it. thanks

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 18, 2019, 03:14:50 am
content: If the polarizer is not glued to the LCD, you put it in backwards.

author: rcpilot23
author_rank: Newbie
timestamp: August 18, 2019, 04:15:46 am
content: The sharp lcd is a sealed unit with a ribbon cable coming out the bottom to connect to the back board

author: rcpilot23
author_rank: Newbie
timestamp: August 22, 2019, 12:36:03 am
content: Ok so the polarizer is the white square plastic sheet that go between the lcd and the backlight.It was already installed and I dont think it is removable but will check thanks
Different Fields in EE - Page 1
Forum section: electronics / general

author: MauriceT
author_rank: Newbie
timestamp: August 22, 2019, 05:28:41 pm
content: Hi,I am an undergraduate student of sophomore standing studying Electrical and Computer engineering. I know that there are a lot of different career paths in EE, and I am unsure of how to figure out exactly what I want to do in electrical engineering. If anyone has a list of different types of EE careers, or advice on how to narrow down my options that would be very much appreciated. The only topic that I currently have particular interest in is PCB design, but I'm not sure if there are jobs where you specifically design PCBs.Thank you!

author: ddavidebor
author_rank: Super Contributor
timestamp: August 22, 2019, 06:24:44 pm
content: Go with what you like as long as you liking it is not being influenced too much by the university you're studying inAnd regardless, buy "the art of electronics" by Horowitz.There are many jobs were you specifically design PCBs, it's called PCB design engineer. I have done it for a while, you need patience and concentrationIn many companies that are not too big, that may not fill the full day.You will need to integrate your knowledge on the topic of PCB design, I have NEVER met someone good at it straight out of university.Stay away from the internet on the topic.Some good books on the topic:EMC Made Simple: Printed Circuit Board and System DesignPrinted circuits handbook seventh edition (not to read, but to keep as a reference on the topic)If your university has an exchange program with China move your ass and get on it NOW

author: tggzzz
author_rank: Super Contributor
timestamp: August 22, 2019, 06:40:18 pm
content: Quote from: MauriceT on August 22, 2019, 05:28:41 pmThere are, but they are mostly technician jobs rather than engineer jobs. There's absolutely nothing wrong with that, of course, but it is worth recognising the distinction.The PCB jobs have a tendency (not absolute) to be tied to a specific CAD package. I recommend that you speed-read an old story:https://www.abelard.org/asimov.phpIMNSHO at this stage you should concentrate on getting a goodtheoreticalunderstanding of awiderange of topics, and then put some of them into practical use (in your own time if necessary); interviewers really like that. You don't know what will be interesting and relevant in 3 years, let alone 30 years - but the solid theory will remain unchanged and remain useful to you.There's plenty of time to specialise later; indeed later the problem is keeping up to speed with changes across a wide range of topics.
Power sharing and cutout - Page 1
Forum section: electronics / general

author: B J
author_rank: Contributor
timestamp: August 25, 2019, 02:27:35 am
content: I want to run two freezers off the same power source. I do not want them both running at the same time. --- If the main one is running I want to unpower the second one. Is there a device I can purchase to do this? What are they called, and where are they available? ---- I can build one, but prefer to see if they are available. Ideas ? ? ?

author: ledtester
author_rank: Super Contributor
timestamp: August 25, 2019, 02:39:17 am
content: What's the power source?

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 25, 2019, 02:59:44 am
content: Make a pair of current sensors controlling relays, so that if one is pulling current the other is disconnected. Note that modern freezers use less than 100W so I'm guessing you're running them from a very limited supply like a small inverter?

author: Nusa
author_rank: Super Contributor
timestamp: August 25, 2019, 03:30:02 am
content: If you literally want to control them by disconnecting the input power, then a couple of appliance timers would do it, one for each freezer. Give each freezer set periods when they have power, without overlap, and frequently enough that neither freezer warms up. Of course, if it's a really hot day and 50% duty cycle isn't enough to keep the freezers cold, then they're BOTH going to warm up with that plan.If you're willing to hack into the freezer control lines so you can control when the compressor can run, you can create a more intelligent solution.

author: Red Squirrel
author_rank: Super Contributor
timestamp: August 25, 2019, 03:49:19 am
content: The timers is probably the simplest, have them set to maybe half hour intervals.Another option might be to use something like arduino to control two contactors that control two power outlets. Just have them alternate. You could also get fancier and have temp sensors inside the freezers and simply ignore the freezer's thermostat (set it to coldest setting) and then just cycle them based on temperature.In fact doing it this way, depending on the source, you could probably still power them both at once, but this would allow you to make sure they never both turn on at once, which is what the real killer would be. (ex: if it's being powered by an inverter)
A Ship traversing a Water Canal like an Aquaduct ? - Page 1
Forum section: electronics / general

author: GlennSprigg
author_rank: Super Contributor
timestamp: August 21, 2019, 03:16:42 pm
content: A friend of mine can NOT grasp this scenario... Imagine there are 2 large lakes, with a Bridgethat is carrying water between the 2 lakes, like a large Aquaduct, with a tunneled road withvertical piers underneath the 'Bridge'. (A 'road' goes under the water 'Bridge')......Now imagine that in one of the lakes, there is a 20,000 Ton tanker/ship, that is moving to theother lake. At one point, it is now stopped exactly in the middle of the 'water' bridge, with only1-cm clearance on the sides & bottom. Is there ANY extra weight on the Bridge??? NOPE!!When the 'ship' was 1st put in the 1st lake, the water level had risen slightly across both lakes,and the bridge. And a Floating Body displaces it's Own weight in water... So while being placedon top of the bridge, it's water displacement is exactly equal to it's own weight....So there is NO increase of weight on the bridge !!! Physics 101 haha...

author: ucanel
author_rank: Regular Contributor
timestamp: August 21, 2019, 03:24:06 pm
content: We do not have to imaginethere is a real one:https://youtu.be/sFdpyxWcKwo

author: GlennSprigg
author_rank: Super Contributor
timestamp: August 21, 2019, 03:40:48 pm
content: Quote from: ucanel on August 21, 2019, 03:24:06 pmThanks mate, I couldn't find a video to describe it !!!Have a good day, from Aussieland to Turkey !!!

author: james_s
author_rank: Super Contributor
timestamp: August 21, 2019, 03:45:35 pm
content: How is this not completely obvious? If the ship is there then the water that would normally occupy that space has moved somewhere else.

author: Mr. Scram
author_rank: Super Contributor
timestamp: August 21, 2019, 03:46:10 pm
content: In larger bodies of water it becomes a bit more complicated as the differences in Earth's gravity cause seas to have actual hills and valleys of several meters tall. Those are hills made of water. Ships have to sail up hill. How about that?https://indianapublicmedia.org/amomentofscience/hills-ocean/

author: Mr. Scram
author_rank: Super Contributor
timestamp: August 21, 2019, 03:48:47 pm
content: Quote from: james_s on August 21, 2019, 03:45:35 pmI don't think very many people can reproduce Archimedes' principle. It's a popular high school question because the intuitive answer tends to be the wrong one. Only when you know a floating object displaces its weight in water it starts making obvious sense.
Sound of silence: What does a FFT of the "silence" in your area look like?dbtech - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: August 21, 2019, 08:40:53 am
content: It would be cool to see what back ground noise looks like in different areas. This is created using "db Meter" app (free app so others can try this) on an iPhone 7. I live out in a kind of rural area and wondered how quiet can things get. What I learned surprised me. Shutting off all noise sources in the house and closing modern sealed windows tight you cant get less then 30 db. Now the low frequency I expected to come through the walls so I'm not sure what the high frequency is unless its harmonics of the low frequency stuff. To my ear I can hear the stuff if I watch the graph but the most part I just hear ringing, which is what happens when I hear silence, granted my hearing only goes to 15k due to loud music as a kid (regretting that stupid car stereo I had now).The low frequency stuff I'm not sure what it is but by taking this and watching it all night and day and measuring the peaks of the sounds and their harmonics that always accompany them you can start to guess what noises are what. The low frequency 80hz and 150hz is cars driving that are too far away for me to hear. Now if the car comes down the street you can tell by watching these peaks grow, you can tell a car is coming long before you hear it let alone see it. If there are helicopters or airplanes a similar thing happens but at slightly different frequencies.It would be interesting to see what the silence looks like in the city country and different areas to figure out why its so noisy. I see why they make anechoic chambers now, silence is really noisy!The night is MUCH quieter then the day. Insects and cars seem to make up most of the sound as well as far away lawn mowers, which are always interesting to watch on the graph.
Jerobeam Fenderson's Mushrooms on a Voltcraft Oszilloskop 610 - Page 1
Forum section: electronics / general

author: FrankBuss
author_rank: Unknown
timestamp: August 21, 2019, 02:26:42 pm
content: Playing with x/y mode with an old analog scope which I got for cheap from eBay:The link to the WAV file is in the video description. Try it with a digital scope. I don't know any which has such a decent quality.

author: tautech
author_rank: Super Contributor
timestamp: August 22, 2019, 09:54:48 pm
content: Yeah his stuff is amazing.His YT videos:https://www.youtube.com/user/jerobeamfenderson1/videos
Adult warning:YouTube hipocricy - Page 1
Forum section: electronics / general

author: Raj
author_rank: Frequent Contributor
timestamp: August 19, 2019, 12:11:19 pm
content: Nudity is bad.Hacking is bad....Unless you pay us.Here's some cannon fodder for all you youtube haters out there.If you select you country as India and watch videos, you'll get sexually suggestive ads, with their links leading to totally unrelated add filled and maybe malicious apps with 1 start ratings.Procedure for checking it yourself, use VPN and don't sign in.Just keep clicking till you start getting ads, but don't watch it till the end or above 3 seconds, just click next video. By doing this the next video with have a preroll ad too.Screenshots will be uploaded after a moderator greenlights me.I don't know the rules of this forum (the images contains women in underwear and blurred nudity)

author: Zero999
author_rank: Super Contributor
timestamp: August 19, 2019, 01:08:54 pm
content: I thought the adverts you get, depend on your search history, so if you get sexually explicit ones, then you've been watching too much porno.

author: Raj
author_rank: Frequent Contributor
timestamp: August 19, 2019, 01:09:45 pm
content: Nope, apparently everyone I know and their moms is getting it since they aren't ads for porno, but for apps... You'll get them more specially if you keep looking around for Android app review and fixesTo give you an idea of what those apps are, I just thought of corping out the x rated things... Here they are. The video advertises x-ray apps but the links leads to easy to program idiotic apps which have same functionality which can be found online or are preloaded into phonesAnd funny, if they allow porno in their add videos, can't they use it on sexually explicit content instead of demonetising them.

author: magic
author_rank: Super Contributor
timestamp: August 19, 2019, 01:39:55 pm
content: That's a clever way of promoting your porn app, thumbs up for that

author: Raj
author_rank: Frequent Contributor
timestamp: August 19, 2019, 01:41:47 pm
content: And sure enough, YouTube is full of 'how to install' videos, of said explicit content apps. But I guess, since all of those belong to hindi speaking guys, these ads are limited to India.

author: Canis Dirus Leidy
author_rank: Regular Contributor
timestamp: August 19, 2019, 02:27:51 pm
content: Quote from: Zero999 on August 19, 2019, 01:08:54 pmLong gone. Now it’s enoughto read just one post on an entertainment site, as advertising begins to offer you a large selection of products: from equipment for the sausage shop to kept women.

author: Simon
author_rank: Unknown
timestamp: August 20, 2019, 06:49:19 am
content: Quote from: Raj on August 19, 2019, 12:11:19 pmPlease don't post any explicit screen shots. If you want to talk about youtubes broken algorithm, by all means.

author: Raj
author_rank: Frequent Contributor
timestamp: August 20, 2019, 06:50:08 am
content: I'll fully comply to forum rules. But you get the idea from the text alone
1 wire protocol with Android phone usb or 3.5mm earphone jack? - Page 1
Forum section: electronics / general

author: nardev
author_rank: Unknown
timestamp: August 20, 2019, 06:38:31 am
content: I have no idea about android phones or what would be possible. So i'm just wondering if anyone tried to communicate with peripherals as 1-wire temperature sensor from android phone's USB or earphone jack?I know that it's possible to generate and get signals through 3.5mm jack i just have no idea if this 1 wire thing would be possible or if someone did it?