hybridfree/eevblog-posts huggingface dataset:
News Consumption Survey - Page 1
Forum section: electronics / general

author: riyadh144
author_rank: Unknown
timestamp: July 04, 2020, 03:13:43 pm
content: Hi Guys,I am trying to reach people who are interested in the consumption of news, and trying to get a large sample. As I am collecting data for a news subscription service that would aim to unify as many news paper outlets as possible under one subscription. Removing or dependency from ads, and therefore becoming the consumer again instead of being the product.Thank you for filling up the survey it will help me get a bit further into our pursuit of money independent press.https://forms.gle/ZonBabckEHpvRySx9

author: riyadh144
author_rank: Unknown
timestamp: July 04, 2020, 05:22:36 pm
content: So another question That I didn't add to the survey is whether this should be a decentralized non profit organization or a for profit organization?I am leaning towards the first.And the main important part behind this is that we cannot censor or not allow anyone from joining this. The organizations goal should be to just funnel the money directly from people to news organization with zero profit, maybe only maintenance and server fees for the organization.

author: I wanted a rude username
author_rank: Frequent Contributor
timestamp: July 05, 2020, 01:51:41 am
content: Quote from: riyadh144 on July 04, 2020, 05:22:36 pmBlendleis similar to what you've described (including recently switching to a subscription model) and hasn't been able to turn a profit, so non-profit may be the only option ...

author: riyadh144
author_rank: Unknown
timestamp: July 18, 2020, 03:39:36 pm
content: Oh my I didn't notice that you guys responded.My thoughts is that it should be a non profit organization. As I would want it to have the least amount of interference into free speech. Preferably no censorship at all whether corporate or governmental.And I don't want this to turn any profit.Sadly I have contacted a couple of newspapers that I respect but I got no response. But I don't want to give up now. So I will try to contact other places. If you guys have any ideas on how to go through with this it would be amazing.I am a software/electrical engineer. and I know that I can muster the skills to pull this technically but I do need a couple newspapers to start with, and I know that is the hard part of it.I am willing to offer the servers, the software and my time. But I really do need some help.

author: riyadh144
author_rank: Unknown
timestamp: July 18, 2020, 03:41:13 pm
content: Also blendle isn't what I want.I don't want to be an aggregate of news articles.I want every news paper to have its websites and articles and I would just facilitate the payment and subscription to those guys. In my opinion through a browser extension that would remove the pay wall if a person is a subscriber.
Video: Don't buy a Mercedes-Benz. Because Microsoft canned online features. - Page 1
Forum section: electronics / general

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 18, 2020, 09:55:42 am
content: Quotehttps://autoexpert.com.au/posts/the-truth-about-mercedes-benz-ownership-in-australiaWhat do you think?

author: senso
author_rank: Frequent Contributor
timestamp: July 18, 2020, 12:49:16 pm
content: Dont expect software services to work forever, and next time read the fine print before dropping 250k on three cars just because they have a star logo at the front..A fool and its money

author: SilverSolder
author_rank: Super Contributor
timestamp: July 18, 2020, 02:01:09 pm
content: There's a lot to be said for "dressing down" with the car(s) you own, as opposed to "dressing up". If you need a nice car on occasion, you can rent the latest and greatest for less than a monthly payment...
Datasheet for CX237B in TO-92 package - Page 1
Forum section: electronics / general

author: GonzoTheGreat
author_rank: Regular Contributor
timestamp: July 17, 2020, 12:24:50 pm
content: I need help finding the datasheet for a device marked CX237B in a plasic TO-92 package.Google yields nothing.Alldataheet, etc, yield nothing.It tests as a BJT NPN transistor with the Base on the middle leg.I was tempted to assume that it was the same as BC237B but using this transistor as a replacement does not work.
Interesting soldering iron - Page 1
Forum section: electronics / general

author: karamba
author_rank: Contributor
timestamp: July 15, 2020, 12:12:19 pm
content: You could do that!!!https://youtu.be/ng_PM9tNJRg?t=2717

author: Shock
author_rank: Super Contributor
timestamp: July 15, 2020, 12:54:24 pm
content: Nailed it!

author: Wallace Gasiewicz
author_rank: Super Contributor
timestamp: July 15, 2020, 05:54:36 pm
content: I use brass bolts in old 120V soldering irons that I use with an old PACE soldering system. Just find a little bolt (ACE Hardware) that fits into the soldering pencil and sharpen whatever point you want. Works great. Also Brass Craft tubing works as a tip in the solder extractor vacuum system.Save lots of time looking for old tips.Wally
How the heck is my DailyMotion account working? - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: July 13, 2020, 12:02:24 am
content: Well this is embarrassing:I have a Dailymotion account here:https://www.dailymotion.com/eevblogI thought I wasn't autouploading there (it used be just old poor quality 720p content), and I haven't checked it for years. But it seems I am auto-uploading all my latest content there, and it appears to be doing it in full 1080p quality which looks great.The embarrassing part is I have no idea how it's doing this!I vaguely recall using some third party website, but can't remember or find what that would be.And I don't think DailyMotion has the ability to auto-import Youtube content like this.Anyone know?

author: EEVblog
author_rank: Unknown
timestamp: July 13, 2020, 12:09:33 am
content: Scratch that, I found it!https://transferring-videos.com/Seems I have an automated script that auto imports new videos once every day!

author: Mr. Scram
author_rank: Super Contributor
timestamp: July 13, 2020, 12:17:38 am
content: Quote from: EEVblog on July 13, 2020, 12:09:33 amIt always scares me when past-me pulls a stunt like that on current-me.

author: EEVblog
author_rank: Unknown
timestamp: July 13, 2020, 12:37:58 am
content: Quote from: Mr. Scram on July 13, 2020, 12:17:38 amIt's nuts. I sign up for so many things I can't remember most of them

author: John B
author_rank: Frequent Contributor
timestamp: July 13, 2020, 02:10:09 am
content: I think it's pause for concern. I never liked these scripts and third party software that will mirror youtube content. 1080p and higher files are not publicly downloadable right? So do they essentially have access to your youtube account and login details? What's worse than giving a third party access is forgetting that you did.

author: themadhippy
author_rank: Super Contributor
timestamp: July 13, 2020, 02:30:36 am
content: QuoteIt gets worse with age

author: NiHaoMike
author_rank: Super Contributor
timestamp: July 13, 2020, 02:52:06 am
content: Quote from: John B on July 13, 2020, 02:10:09 amThe open source script youtube-dl downloads them just fine.

author: EEVblog
author_rank: Unknown
timestamp: July 13, 2020, 03:24:55 am
content: Quote from: John B on July 13, 2020, 02:10:09 amThey have google API access to Youtube video data.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 13, 2020, 04:06:22 am
content: It would be interesting to keep track of the number of videos flagged for any reason.

author: BravoV
author_rank: Super Contributor
timestamp: July 13, 2020, 04:14:38 am
content: Quote from: themadhippy on July 13, 2020, 02:30:36 amNot only that, sometimes I surprised that I own a piece of T&M equipment that I bought while ago and forgotten, yeah, I'm TEA god worshiper.

author: Mr. Scram
author_rank: Super Contributor
timestamp: July 14, 2020, 01:41:04 am
content: Quote from: EEVblog on July 13, 2020, 12:37:58 amThe other day I had a webshop tell me I already had an account I had no recollection of. Apparently I ordered something nearly a decade ago.
How do I set my time zone for this site? - Page 1
Forum section: electronics / general

author: spiff72
author_rank: Regular Contributor
timestamp: July 13, 2020, 12:21:04 pm
content: Hey everyone, not sure where to post this, but I can't find any "User CP" option for this forum, where I might set the correct time zone for my location. I want to have the post times reflect correctly, but I am guessing that they reflect the time in Australia.

author: JackJones
author_rank: Regular Contributor
timestamp: July 13, 2020, 12:25:26 pm
content: Click "profile" at the top of the page, there is an option called "Look and Layout" on the left where you can modify time offset.

author: spiff72
author_rank: Regular Contributor
timestamp: July 13, 2020, 12:31:27 pm
content: Wow - even with that guidance it was hard to find. Clicking Profile at the top of the page had nothing on the left, but there was an item called "modify profile" next to Profile Summary which revealed a drop-down with the info I needed. I didn't realize the "modify Profile" item was a link - i thought it was just descriptive text telling me that i was already modifying the profile!Thanks!

author: Ian.M
author_rank: Super Contributor
timestamp: July 13, 2020, 12:45:51 pm
content: Also, it doesn't understand your regional daylight saving time, so you may have to adjust it twice a year!Seehttps://www.eevblog.com/forum/blog/why-bother/msg2772266/#msg2772266for more details.
Digikey Shared orders history - Page 1
Forum section: electronics / general

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 13, 2020, 02:45:11 am
content: Via email.Quote

author: tooki
author_rank: Super Contributor
timestamp: July 13, 2020, 05:28:48 am
content: Another really useful feature is the ability to share BOMs within the company.FYI for those who don’t know: at DK, you can contact customer support and have them merge your various individual logins under the same company, e.g. to enable sharing, central billing, etc.
Hi all - Page 1
Forum section: electronics / general

author: Shiv
author_rank: Regular Contributor
timestamp: June 15, 2020, 10:58:36 am
content: Hello people.Let me introduce myself:I am an electronics technician, working in the metrology & calibration department of the national institute of aerospace technique (Spain)I´m also a electronics & R/C freak (Arduino, Raspberry, flying wing, FPV drones, helicopter,....)I've been following the forum for a while, but I had never registered.If I can help someone with manuals, calibration sheets, specifications or anything useful, please let me know.Greetings and thanks for the forum.

author: GlennSprigg
author_rank: Super Contributor
timestamp: June 15, 2020, 02:40:49 pm
content: Quote from: Shiv on June 15, 2020, 10:58:36 amYou will be a welcome addition here!It often amazes me when I see (relative to a particular post) how many people are viewing suchvaried posts, as 'Guests'. And that's great!! but is good to hear from them in person.

author: Shiv
author_rank: Regular Contributor
timestamp: June 16, 2020, 07:21:07 am
content: Thanks Glenn.."For a while", in my case, should have been years:Greetings from an unmasked ninja!Its great to read you, you folks are awesome with awesome projects.Thank you again.Alfredo.

author: GlennSprigg
author_rank: Super Contributor
timestamp: June 17, 2020, 10:19:47 am
content: Quote from: Shiv on June 16, 2020, 07:21:07 amI hope you guys in Spain are doing a bit better now with this COVID-19 business...It seems you were getting hit pretty hard there for a while, along with other countries!At least you have your hobbies to keep you busy!!

author: Shiv
author_rank: Regular Contributor
timestamp: July 02, 2020, 10:12:50 am
content: Better?Cant do it better,...If you doubt it,... ask our president....(He´s saying that we must thank him for saving 500k people...)The worse thing?I think he will be re elected.Thank you so much.

author: gorge441
author_rank: Contributor
timestamp: July 07, 2020, 07:42:30 am
content: Hello @ShivNice to meet you.And, congratulating you to be a part of eev family.

author: Shiv
author_rank: Regular Contributor
timestamp: July 13, 2020, 11:57:27 am
content: Thank you gorge441

author: Zucca
author_rank: Unknown
timestamp: July 13, 2020, 02:32:24 pm
content: WelcomeShiv! wonderful choice to sign up!
Mesh WiFi node auto setup: what's being sent? - Page 1
Forum section: electronics / general

author: eti
author_rank: Super Contributor
timestamp: July 12, 2020, 04:53:56 am
content: : I have added a "Wireshark" capture which I obtained by plugging the disc (node) into my laptop via ethernet, and then turning on the disc. (ZIP attached)I've got a new mesh router + discs set ("EE" Smart router + 3 of their "Smart WiFi discs"). Each disc is a node, and in the user guide it says that, to configure each disc, merely plug it into the smart router via ethernet until the disc led is solid blue, then disconnect - okay, fine.Question: what protocol or data/methods are being employed to auto setup the discs this way, and could this be exploited by someone with a device that emulates the conversation the two devices are having, to steal credentials? I'm by no means a networking expert, but know enough.Thank you.

author: Whales
author_rank: Super Contributor
timestamp: July 12, 2020, 05:18:58 am
content: Probably. The world of wifi devices is full of nonstandard stuff, and a lot of OTS wifi APs come with provisioning tools that require no password (you have to be the first & fastest is the security model).Do the mesh routers specify a particular 802.* or similar standard they use for the "mesh" feature? Eg802.11s?

author: eti
author_rank: Super Contributor
timestamp: July 12, 2020, 05:30:55 pm
content: "Wireshark" capture added to OP.
Jumper T16 RC Transmitter - Mystery IC - Page 1
Forum section: electronics / general

author: fqahmad66
author_rank: Regular Contributor
timestamp: July 12, 2020, 05:22:57 pm
content: Hi,I have been scratching my head for a long time know. Can somebody, who perhaps own the subject RC transmitter, tell me what this mystery IC is?. Its function is to control the 6 position APM modes mostly. The ground pin is 15 and +3.3V power goes to pin 25. The output at pin 27 is probably a voltage level shift with press of 6 keys row on top which also drives the leds. The keys and leds are connected to individual pins of IC. There is also an oscillator connected at pin 13 and 14. I have not known any MC with this pin layout. Looking forward to some response.Thanks and best Regards
DUDE Wiper 1000 - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: July 13, 2020, 01:56:38 am
content: ..and this ones actually for real.Website:https://www.dudeproducts.com/products/dude-wiper-1000?gclid=EAIaIQobChMI9c-Jq4_J6gIVGapiCh13AQJzEAEYASAAEgKrb_D_BwE
Repair service - Page 1
Forum section: electronics / general

author: Majorbob
author_rank: Regular Contributor
timestamp: July 10, 2020, 09:14:57 am
content: Hi all, not sure on the right place for this so I've chosen here.I'm based in the UK and am seriously considering starting an electronics repair business, nothing too serious, just an extra revenue stream on the side of my current job and I have a few questions:1. What sort of insurance should I get? I've seen lots about product liability, especially as items are going back to peoples homes. I've also seen a few about being insured to enter peoples homes for repairs on larger appliances (not sure I'll be doing this sort of work yet)2. Do I need to do any kind of extra safety testing (such as a PAT test) to confirm product safety before handing the item back. I've seen a couple of places doing this but they were big repair companies that also provided services to businesses.3. Do I need to provide any kind of guarantee or warranty on repairs undertaken? And how do I do this? The information I can find is very vague and aimed more at the consumer.4. I'm yet to check if I'll need to be GDPR compliant but does anyone have advice on this?I'm planning to run the business from my home and I've found loads of information on what to do on that side of things.
(Aust only) Just in: Vodafone has joined with TPG Telecom! - Page 1
Forum section: electronics / general

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 13, 2020, 06:28:38 am
content: From email.Quote

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 13, 2020, 06:30:44 am
content: My 2 cents.Are any of you shareholders and surprised at this sudden announcement?

author: Whales
author_rank: Super Contributor
timestamp: July 13, 2020, 06:42:38 am
content: There's some relevant reading and discussion on Whirlpool (a popular Australian telecomms forum):VHA / TPG MergerTPG Vodafone merge supported by the courts

author: greenpossum
author_rank: Frequent Contributor
timestamp: July 13, 2020, 06:49:10 am
content: Quote from: Ed.Kloonk on July 13, 2020, 06:30:44 amThe shareholders overwhelming approved back on Jun 24. So this is not news. However ordinary share trading will commence tomorrow.https://www.afr.com/companies/telecommunications/tpg-vodafone-merger-gets-shareholder-approval-20200624-p555m1

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 13, 2020, 06:56:43 am
content: Quote from: greenpossum on July 13, 2020, 06:49:10 amI am a SH via a managed fund. So you can imagine my surprise.

author: greenpossum
author_rank: Frequent Contributor
timestamp: July 13, 2020, 07:05:16 am
content: Well I guess you delegated management to them. My fund doesn't tell me all the trading they do but I suppose I could opt to be notified, dunno.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: July 13, 2020, 07:14:22 am
content: Quote from: greenpossum on July 13, 2020, 07:05:16 amBut do you really want to be notified? Talk to CBUS. A bit of panic and throw in a little relaxation of legislation and boom! Falling knife.

author: greenpossum
author_rank: Frequent Contributor
timestamp: July 13, 2020, 07:16:35 am
content: Exactly. I don't because it's their job.
Cant recover Gmail Account - Page 1
Forum section: electronics / general

author: nvidia
author_rank: Regular Contributor
timestamp: July 09, 2020, 08:09:50 am
content: did google this but cant really find an answerso i can log into my gmail but it asks me to verify my account with phone but i no longer have that phone so i go to recover my account and it ask me the same thing verify my account with phonewhat can i do?

author: RoGeorge
author_rank: Super Contributor
timestamp: July 09, 2020, 08:16:20 am
content: When asked to verify just ignore it, then open a new tab and type again the gmail URL in the new tab.

author: nvidia
author_rank: Regular Contributor
timestamp: July 09, 2020, 08:23:36 am
content: Quote from: RoGeorge on July 09, 2020, 08:16:20 amjust tells me to log in

author: Ian.M
author_rank: Super Contributor
timestamp: July 09, 2020, 08:31:40 am
content: Sign into Google, not directly to gmail, click the round blue I account button, then [Manage your Google Account] and you can update your recovery phone number. Caution: DO NOT attempt to change your password until you have a valid means of account recovery in place!

author: nvidia
author_rank: Regular Contributor
timestamp: July 09, 2020, 08:40:38 am
content: Quote from: Ian.M on July 09, 2020, 08:31:40 amok i just tried that still ask for phone

author: Ian.M
author_rank: Super Contributor
timestamp: July 09, 2020, 08:59:23 am
content: So you've got Google's 2FA enabled and have lost access to your 2FA device. If you don't have a backup 2FA method set up, or a browser with cached credentials that will let you log in with 1FA, you'll have to go through Google's account recovery process which can take a day or so if they need to manually verify your identity.https://support.google.com/accounts/answer/7682439?hl=en
Don't have a video magnifier like Dave, BUT... - Page 1
Forum section: electronics / general

author: GlennSprigg
author_rank: Super Contributor
timestamp: July 08, 2020, 11:52:08 am
content: Dave, you have some impressive equipment in your lab/workshop, especially your overhead videocamera/macro/microscopegear we see lately on Youtube, mainly with yourSMD placement/soldering!Of course we can't all afford that gear, but with the proliferation of SMD stuff now, we have visual probs!As astop-gapat least, for the 'masses', I'm playing with a set-up using my AndroidSmartPhoneas a camera,to show real-time video full screen & magnified, on myLaptop screen!! for delicate soldering work etc. I'm usinga phone App called 'DroidCam', and it's corresponding Client software on Windows. It works via localWIFI, orUSB. The basic App works, but is limited. The 'paid' App is called 'DroidCamX' and is only about$4.50!!, with manymore features including PC control of Zoom, Brightness, Orientation & photographs. It works great! and includesworking in HD 720p 16:9. I just have to make a frame/holder to position it above my work.Maybe worth a look at by others...
3D printed laser lab from CERN - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: July 08, 2020, 07:58:05 am
content: OK, it's mostly optics mounts and a guide to some nice experiments you can do at home, but still interesting. Obviously it's nowhere near a true lab setup and you need to get some non 3D printable stuff (mirrors, splitter mirrors etc), but still, could be useful. Plus it might be reusable for other play.https://scoollab.web.cern.ch/laserlab3D
bigger pictures not showing correct image - Page 1
Forum section: electronics / general

author: jmelson
author_rank: Super Contributor
timestamp: July 06, 2020, 03:21:30 pm
content: When you click the embedded pictures in some messages, you get a bigger version of SOME OTHER totally unrelated picture.For instance, when you click on the projects/pancake coils thread small picture, you get a picture of a PC power supply case.I have seen this happen several times in the last couple days.Thanks,Jon

author: DrG
author_rank: Super Contributor
timestamp: July 06, 2020, 03:51:57 pm
content: Quote from: jmelson on July 06, 2020, 03:21:30 pmYes, this is being discussed in the website error reportse.g.,https://www.eevblog.com/forum/chat/website-error-reports/msg3114446/#msg3114446
Doubt smartphone and battery - Page 1
Forum section: electronics / general

author: micksmelanie
author_rank: Regular Contributor
timestamp: July 06, 2020, 11:03:43 am
content: Why do batteries of smartphones and tables swell and leak? is it possible to keep a smartphone stored in the near future with the battery in it to prevent the battery from blistering and leaking?

author: tooki
author_rank: Super Contributor
timestamp: July 06, 2020, 01:47:02 pm
content: Already asked and answered in your other thread:https://www.eevblog.com/forum/chat/question-remove-battery-smartphone/

author: Simon
author_rank: Unknown
timestamp: July 06, 2020, 05:50:18 pm
content: i think someone is looking to get banned just so that they can go crying to their mama!
Apollo's Forgotten Computer - The LVDC - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: July 05, 2020, 11:24:53 pm
content: Fairly well done video on the LVDC design and function.Resonance and positive feedback loops.

author: GlennSprigg
author_rank: Super Contributor
timestamp: July 06, 2020, 01:12:11 pm
content: They had to something with all those oldC-64's &Vic-20's

author: schmitt trigger
author_rank: Super Contributor
timestamp: July 06, 2020, 01:46:29 pm
content: Rocket science indeed!At NASA's US Space and Rocket Center in Huntsville, they had an LVDC mounted on its ring, an impressive display.
dry and hardened cable controller snes - Page 1
Forum section: electronics / general

author: micksmelanie
author_rank: Regular Contributor
timestamp: July 04, 2020, 11:37:45 am
content: the cable of my snes control is dry and hardened is it possible to recover this rubberized cable?

author: Dave
author_rank: Super Contributor
timestamp: July 04, 2020, 12:35:07 pm
content: Just replace the cable. Should becheap enough.

author: micksmelanie
author_rank: Regular Contributor
timestamp: July 04, 2020, 07:21:53 pm
content: is it not possible to soften these cables? go back to being flexible?

author: T3sl4co1l
author_rank: Super Contributor
timestamp: July 04, 2020, 08:26:14 pm
content: The insulation is probably PVC; you'd need to reintroduce a plasticizer like dinonyl phthalate.Far more reliable to cut and replace.Tim

author: amyk
author_rank: Super Contributor
timestamp: July 04, 2020, 09:58:26 pm
content: If you want to be really fancy, replace it with a silicone cable.

author: Dave
author_rank: Super Contributor
timestamp: July 04, 2020, 10:04:49 pm
content: Quote from: amyk on July 04, 2020, 09:58:26 pmThe challenge is in the connector, as it is a proprietary Nintendo design. Buying a replacement cable with the connector already fitted is the easiest option here.

author: MrMobodies
author_rank: Super Contributor
timestamp: July 05, 2020, 09:13:35 pm
content: I was given a lot filthy dusty pvc mains cables that were left open in a warehouse for many years and appeared hardened. I put the middle (not the ends) in a tub of hot water with a lot of washing up liquid to clean them and not only did it remove the dirt it softened them.I am not sure if it will work in that case but the ones I cleaned could have appeared hard from the rubbish it was covered in.

author: helius
author_rank: Super Contributor
timestamp: July 05, 2020, 10:39:30 pm
content: If the cable is made of latex rubber, it can be softened by brushing with methyl salicylate (oil of wintergreen). This also delays the decomposition of the rubber. If it is made of a synthetic polymer like PVC, this will not have any benefit.The plasticity of synthetic rubbers can sometimes be improved by boiling them in water for a few minutes. This redistributes the plasticizers. Scrubbing can also improve the texture, as the above poster noted: by taking off the cracked outer surface a new, smoother surface is revealed.
Have a treat - air shows of military planes WW2 to present day - Page 1
Forum section: electronics / general

author: Rick Law
author_rank: Super Contributor
timestamp: July 05, 2020, 06:53:00 pm
content: From reading the posts here in the past years, I came to notice many here are interested in air planes. Seeing the grainy old documentary films and new fake digital ones in movies is interesting, but seeing a lot of actual real ones flying present day and en-masse is kind of a treat, even if it is in video instead of in person.If you are one of those interested, there is a video with a30 minutes US Air Force airshowyou may be interested in.US Military air planes from WW2 to present day.It starts with the last remaining two workingC47'sthe USAF has, from twoB17's(withfour Mustangsflying escort),B25,B29's(one of two last in the world that remained flying).Corsairs, so on, are also featured. Then came post WW2 ones likeA26 Invaders,B52's, B1's, B2's, Osprey, F15 Eagles, F22 Raptors, and theA10 Warhog, so on. Helicopters were also featured like the famed Bell 47 (remember MASH?), Huey, Black Hawks and others, even the air-refueling tankers used by USAF were featured. (Sorry, no Tom Cruise's Top Gun F14 Tom Cats, that's NAVY)The Korean War era F86 Sabre was schedule to appear but it had mechanical problems and missed the show. Two F35B's was there but while the MC was yapping about the capacities of the F35, the camera was not looking skyward at the time. So you don't get to see the F35s in the whitehouse.gov video. Other news coverage might have the F35B's flight in their coverage.The video is our July 4th celebration video "Salute To America". After the music, speech and things, atvideo time mark 1:21:00, the 30 minutes air show starts, and then closes with a few more minutes of songs and Colors marching out.
Ordering from JLCPCB to Chinese address - Page 1
Forum section: electronics / general

author: Axk
author_rank: Regular Contributor
timestamp: July 05, 2020, 12:04:02 am
content: Edit: solved, see below.Has anyone ordered from JLCPCB to a Chinese address?They don't have regular post delivery to Belarus right now (DHL and Fedex are PITA here and quite expensive).So I'm trying to order to a post forwarder address (Tiptrans) and it won't accept the address (in Chinese) that the post forwarder is giving even if I remove the Latin characters as it suggests.The same address works fine with LCSC and I've one order delivered there already.I guess this might be a bug that nobody cares about because the Chinese are using a different local version of JLCPCB.

author: Axk
author_rank: Regular Contributor
timestamp: July 05, 2020, 12:26:43 am
content: In case anyone else runs into the same issue I had to create a new address and it worked.It didn't work with the existing address (synced from LCSC) where it originally had Latin characters, even after I changed it it somehow didn't pick it up and though that I still had Latin in there.Creating a new address helped.
How to analysis offset voltage in OP-AMP? - Page 1
Forum section: electronics / general

author: kankanas
author_rank: Contributor
timestamp: July 04, 2020, 10:50:43 am
content: Hello all,I need help understanding the calculation of offset voltage for OP-AMP. Currently, I am trying to find the offset voltage of TL074 in LT-Spice. As per the datasheet given, Input offset voltage (Vos) is typically 3mV and Max 10mV. (supply is +-15V)My understanding is if we short the two inputs of the OPAMP to ground and measure theoutput voltage, whatever value will get at output node is theOUTPUT offset voltagenot input offset voltage.To measure input offset voltage a test voltage has to be added in one of the input terminals and have to vary. The value at which output becomes 0V must be INPUT offset voltage. But I am not sure as the input offset is not matching with the datasheet and any information about OUTPUT offset I could not see. So, My doubts are in general theoretically----1. How to find the input offset as well as the output offset of an OP-AMP? (Please provide circuit configuration for both)2. When the OPAMP is included in big circuit configuration how we can approach for offset voltage at each node?3. Can the offset change with different configurations and different feedback strategies (negative feedback and open loop mainly)?Thanks in AdvanceKS

author: Simon
author_rank: Unknown
timestamp: July 04, 2020, 04:18:47 pm
content: Please do not double post. It is annoying and will not get you help any quicker.
Fluke website got hacked, accounts stolen - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: July 03, 2020, 05:06:26 am
content: 350k accounts details stolen from Fluke:https://www.bleepingcomputer.com/news/security/seller-floods-hacker-forum-with-data-stolen-from-14-companies/

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: July 03, 2020, 05:58:29 am
content: ayy lmao

author: tom66
author_rank: Super Contributor
timestamp: July 03, 2020, 11:24:05 am
content: Obligatory reminder to use a different password for every site that you care about. A password manager can help with this.

author: SerieZ
author_rank: Regular Contributor
timestamp: July 03, 2020, 12:54:35 pm
content: I wonder how much such a Database may be worth to shady Characters.

author: Rick Law
author_rank: Super Contributor
timestamp: July 03, 2020, 08:36:25 pm
content: Quote from: SerieZ on July 03, 2020, 12:54:35 pmThey wont know until they look. Chances are, they are looking for credit card info, and you might have given it to the company when you ordered anything (including repair service and the likes) from them and they might have saved it.
Switching frequency range of MP4569GN buck IC - Page 1
Forum section: electronics / general

author: Axk
author_rank: Regular Contributor
timestamp: June 26, 2020, 07:50:01 pm
content: Trying to figure out the switching frequency range for this:https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP4569/document_id/963(I've picked this part based on high input voltage, good efficiency (need input voltage up to 56V for an ebike battery power meter) and availability from LCSC.)Cannot find the switching frequency range anywhere in the datasheet.The datasheet has an inductance value formula tied to the maximum switching frequency and a formula for the switching frequency based on the inductance value, but no switching frequency range...I wonder if I'm missing some clue in the datasheet.The only way that I see of getting an acceptable switching frequency (not the range) is to use the formula and plug the values from the reference circuits provided.

author: thm_w
author_rank: Super Contributor
timestamp: June 26, 2020, 08:43:10 pm
content: 100kHz from the figure. Low end 10Hz.What number does the equation give you?

author: Axk
author_rank: Regular Contributor
timestamp: June 26, 2020, 09:01:40 pm
content: thm_w, which figure are you referring to?If I assume Vin=75V, Vout=3.3V, Iout=0.A, L=33uH like in their reference circuit (Vin is actually given as a range, so I'm not sure, but I assume the inductance is given for the maximum input voltage) and plug this into their formula for the switching frequency ("Switching frequency can be estimated by belowequation") it gives me 637kHz.

author: thm_w
author_rank: Super Contributor
timestamp: June 26, 2020, 09:21:33 pm
content: Page 7 - steady state 0.3A diagram. Switching time = 10us.I would try 33-47uH and see if it does what you want.

author: Axk
author_rank: Regular Contributor
timestamp: July 01, 2020, 08:27:22 pm
content: I think I have it all figured out now (should be obvious to those with more knowledge I suppose).So there's no lower switching frequency limit (at least theoretically), practically this ends up determined by the size of the inductance and capacitors.The (theoretical) upper limit is determined by the minimum on time of 20ns (specified in the datasheet), which would be 50MHz. But in practice switching losses would be too big at this point.With the parameters from the reference circuits the switching frequency is around 100KHz as @thm_w noted.I suppose 200KHz should be fine also, but need to calculate based on what the switching losses are at 100KHz. I guess this can be estimated based on the specified efficiency and the inductance + high and low switch on state resistive losses.Attached is my LTSPICE model based on the functional block diagram from the datasheet (appears to work well, at least in the stead state, doesn't work to simulate the short-circuit protection)
ISP Ordered to Hand Over Pirates’ Details After Cracked Software ‘Phoned Home - Page 1
Forum section: electronics / general

author: aqarwaen
author_rank: Regular Contributor
timestamp: July 01, 2020, 09:49:35 pm
content: https://torrentfreak.com/isp-ordered-to-hand-over-pirates-details-after-cracked-software-phoned-home-200629/

author: Stray Electron
author_rank: Super Contributor
timestamp: July 01, 2020, 10:23:32 pm
content: So some wackadoodle lawyer contacted some companies demanding a pay-off. What else is new?"Patent infringement"? and not theft of IP? I think that will be an impossible sell in a court of law.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: July 01, 2020, 10:31:56 pm
content: Quote from: Stray Electron on July 01, 2020, 10:23:32 pmRedundant
Even worse cassette mechanism - Page 1
Forum section: electronics / general

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: June 29, 2020, 08:05:30 pm
content: Techmoan was pretty negative towards the Tanashin cassette mechanisms in his modern Aldi boomboxes, but I think this one is even worse.The head looks like it was polished with a nail file and gouged with a claw hammer for good measure. Does anyone expect this to not peel your tapes apart like a carrot in a peeler?It's from thishttps://www.ebay.ca/itm/High-Quality-Walkman-Stereo-Tape-to-MP3-Converter-USB-Cassette-Music-Player/333224064513?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649Yeah I found some cassettes in my stuff and I wanted to hear what's on them. Not with this thing I won't.

author: thm_w
author_rank: Super Contributor
timestamp: June 29, 2020, 08:48:15 pm
content: Take some fine sandpaper and polish it.

author: Benta
author_rank: Super Contributor
timestamp: June 29, 2020, 10:19:44 pm
content: Well, Alex,if you search for cheap, you'll get cheap."Geiz ist geil!"

author: schmitt trigger
author_rank: Super Contributor
timestamp: June 29, 2020, 10:37:48 pm
content: Simple;Take a grinder wheel and polish it until the sparks stop flying.

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: June 29, 2020, 11:48:34 pm
content: Quote from: Benta on June 29, 2020, 10:19:44 pmAs opposed to what? The rebranded ones that are exactly the same unit?Any quality deck is by now 20 to 30 years old with belt troubles and petrified rubber parts and worn heads....

author: shakalnokturn
author_rank: Super Contributor
timestamp: July 01, 2020, 09:00:56 pm
content: Stiff or decomposed rubber true, not necessarily worn heads, plenty of tape decks were produced during the CD's glory era and seldom used.If you want something worth the cash buy old.
"Element 14" vs "element14" - Page 1
Forum section: electronics / general

author: Bud
author_rank: Super Contributor
timestamp: July 01, 2020, 04:34:13 am
content: I was doing some reading on Acorn Computers, a British company that was rival to Sinclair on the domestic home computers market back in 80-s, (see my post here:https://www.eevblog.com/forum/vintage-computing/micro-men-movie(2009)/), when I came across this:"January 1999: CAMBRIDGE, England  Acorn Computers Ltd. has changed its name to Element 14 Ltd."I was like... what?! A home computer company that then developed the ARM processor is now Element 14, a largest electronic parts distributor ?And then comes another shock:"October 2000: Element 14, the bit of Acorn left after the veteran British company was dismembered for its ARM shareholding, has been bought by Broadcom"Broadcom owns Farnel/Newark Element 14 ?!Took me a while to sort out... It turned out Farnell/Newark do not have to do with Element 14 of Acorn, the difference is in how the names are written: "Element 14" vs "element14" with the small first letter and no space in front of the 14. Acorn was using "Element 14" company name and Farnell/Newark was using "element14" brand in their names.It did not help with the confusion that both Acorn and Farnell were British companies.Curiously, in 2019 Farnell/Newark dropped the element14 element (no pun intended) from the companies names when were acquired by AVNet. As of today element14 seems to be an engineering community portal owned by AVNet. And Acorn's Element 14 name was abolished in 2000 after they joined Broadcom, becoming a DSL division of Broadcom.
Tablet to read datasheets / circuit diagrams / PDFs in general - Page 1
Forum section: electronics / general

author: soFPG
author_rank: Frequent Contributor
timestamp: June 28, 2020, 10:46:26 am
content: Hello,because I don't really enjoy reading large blocks of texts (like a book or datasheet) on my regular PC monitor and I also don't want to print everything with my laser printer I thought about getting a tablet for that purpose.What I would also really like to have is a way to annotate PDFs with a touch sensitive pen. Because datasheets often have fine details in diagrams, resolution of the screen should be good as well.Any recommendations? What are you using to look at PDFs?

author: Bassman59
author_rank: Super Contributor
timestamp: June 29, 2020, 07:16:45 pm
content: Quote from: soFPG on June 28, 2020, 10:46:26 amiPad Pro with Apple Pencil. Marking up PDFs is easy -- I do it all the time. (I have the 1st generation iPad Pro 12.9" from 2015. It's still supported and works well!)

author: bitter_mike
author_rank: Contributor
timestamp: June 29, 2020, 07:30:57 pm
content: I have a Surface Go. It works fine for this kind of thing.

author: Bud
author_rank: Super Contributor
timestamp: June 29, 2020, 08:37:41 pm
content: Tablets are great but it is pain in the back to have them on the bench, hard to find a suitable place for them and they will always be in the way when doing stuff, obstructing access, meter leads getting under and over them, cleaning liquids getting spilled on them, being poked with the soldering iron and stuff. Best to have one on an extention arm perhaps.
Awesome video blog by a Canadian lineman - Page 1
Forum section: electronics / general

author: paulca
author_rank: Super Contributor
timestamp: June 29, 2020, 02:35:26 pm
content: https://www.youtube.com/channel/UCpJWHeFjOjoDrHLIPqIHgwAThought I'd share. Interesting to watch this stuff. Learnt a lot about cut-outs, fuses, doors, auto-interruptors. Also more confirmations that the neutral wires are not safe.
content management program that works like wikipedia? - Page 1
Forum section: electronics / general

author: Simon
author_rank: Unknown
timestamp: June 28, 2020, 04:03:01 pm
content: I'd love to use something like wikipedia to create note about stuff and link to other note like wikipedia does. I know that you can manhandle it into working on your local machine but I would rather have a standalone program that does something similar. Is there such a thing?

author: tggzzz
author_rank: Super Contributor
timestamp: June 28, 2020, 05:44:09 pm
content: Quote from: Simon on June 28, 2020, 04:03:01 pmIf you only want it for personal use, limited scale (e.g. a project) then consider tiddlywiki.https://tiddlywiki.com/Lightweight, e.g. revision control is creating a new single HTML file containing the entire wiki."TiddlyWiki is a personal wiki and a non-linear notebook for organising and sharing complex information. It is an open-source single page application wiki in the form of a single HTML file that includes CSS, JavaScript, and the content. It is designed to be easy to customize and re-shape depending on application. It facilitates re-use of content by dividing it into small pieces called Tiddlers."

author: NivagSwerdna
author_rank: Super Contributor
timestamp: June 28, 2020, 05:46:55 pm
content: Atlassian Confluence$10 for a small licence.... and the $10 goes to a charity

author: Simon
author_rank: Unknown
timestamp: June 28, 2020, 06:05:38 pm
content: looks like the cures are worse than the illness.
Pinout of stihl power tool chargers - Page 1
Forum section: electronics / general

author: Urs42
author_rank: Unknown
timestamp: June 23, 2019, 04:34:28 am
content: I got a broken stihl AR3000 battery backpack, i think the only problem was that one of the four wires going to the connector was not properly connected. I do not own any matching stihl power tools, i do have other uses for a 1148Wh 36V battery backpack.The backpack can be charged with a normal stihl AL 300 or AL 500 charger which i do not have. I did try to connect an 36V charger to the positive and negative terminals of the battery but it will not charge. It would be good to know the pinout of the charger.I think one of the other two wires is used for charging but unfortunately the bms in the backpack is potted, and i do not want to connect 36V to it without knowing the pinout...Cells: Sony US18650NC1Configuration: 10s22pI've attached some pictures of this thing...

author: seb13
author_rank: Newbie
timestamp: June 28, 2020, 06:22:55 am
content: There is a communication protocol between Stihl batteries and tools.On the AR3000, green and yellow wires are used for communication only (as all other batteries)I also own a defective AR3000 with BMS in fault (4 red LEDs + bips).18650 are connected horizontally and create 4 groups.10S per row.Each of these 4 groups goes to the BMS.Same observation here : I can not charge using the power ports (Red and black).The BMS Locks direct charging when in fault.If you wanna charge anyway you have to feed the cells between left side blue wire (ground) and the 4 right side wires that go to the BMS (each one being 36v).The AR3000 is 10S11P.First step would be to check the 10 voltages of each 1S11P assembly. Check if you have a weak element (dead cells).Unbalanced group may bring the BMS in error.
Dave's SMD Video last month !! - Page 1
Forum section: electronics / general

author: GlennSprigg
author_rank: Super Contributor
timestamp: July 04, 2020, 12:45:56 pm
content: I had looked at various videos before the one above, as even 'thinking' about replacingSMD parts seemed beyond my abilities!! Why should I want to?? Because like everyoneelse there are times when we need to change certain OpAmps with quality devices, so toincrease their functionality & accuracy. It used to scare me about SMD devices. Now I canmove on, and understand. Mind you, my failing eyesight does not help!!!

author: GlennSprigg
author_rank: Super Contributor
timestamp: July 06, 2020, 11:22:01 am
content: P.S.I'm impressed with the 'Drag' soldering technique... Never thought of that!!(Of course I'm talking about the many pinned IC's there...)It seems, from other videos too, that the hardest part is holding the SMD in place. Others use asimple weight with a springy arm, to press down & hold the component, without 'tacking' corners!And of course... plenty of FLUX !!
PCB blocked by the Belgian customs - Page 1
Forum section: electronics / general

author: ggchab
author_rank: Frequent Contributor
timestamp: June 24, 2020, 11:08:17 am
content: My PCB's from JLCPCB have been blocked by the Belgian customs for almost 6 days and still no news. Via DHL, I sent them a copy of the invoice, a copy of the web site with my order details. But ... nothing ...I don't understand the reasons. They should have seen thousands of those things and should have a good idea of the real valueOf course, impossible to contact them.Any idea about what's happening ? Did you already have a similar experience for so simple things ?

author: SerieZ
author_rank: Regular Contributor
timestamp: June 24, 2020, 11:17:58 am
content: How many did you order?I have ordered tons of low quantity PCB from various Chinese manufacturers and never had any Problems.Sounds like a mistake to me and/or lost in Bureaucracy.

author: ggchab
author_rank: Frequent Contributor
timestamp: June 24, 2020, 11:48:48 am
content: Only 3 different (small - 2 layers) PCB's, 5 copies of each of them. Total amount: about 35€ including shipping cost !!Never had any problem before: I paid the taxes and the PCB's were delivered the day after.What annoys me is the impossibility to contact the customs. It's like a black box

author: autotel
author_rank: Contributor
timestamp: June 24, 2020, 11:53:19 am
content: That sucks! I have lived in Chile and Finland, both have the same kind of issues. In general they keep the stuff to charge you tax and import customs, but they don't realize they are charging us too by making us wait! In Chile you'd sometimes get charged for "storage" on top of allAnyways, there might be ways to pre-declare the customs so that they go smoothly. I have not managed to do that yet because I haven't established a business and I am not good with bureaucracy, especially in FinnishI hope you find them soon!

author: bluey
author_rank: Regular Contributor
timestamp: June 27, 2020, 08:40:37 pm
content: Probably think they are terrorist bomb parts.

author: themadhippy
author_rank: Super Contributor
timestamp: June 27, 2020, 08:49:22 pm
content: maybe they've been put in quarantine for 14 days