hybridfree/eevblog-posts huggingface dataset:
What is wrong with this picture? - Page 1
Forum section: electronics / general

author: mzacharias
author_rank: Frequent Contributor
timestamp: March 14, 2016, 10:26:58 pm
content: I actually did this once by accident. My hand slipped right past the handle on a hot iron; and wrapped my index finger around the barrel. Took months to heal.

author: Gyro
author_rank: Super Contributor
timestamp: March 14, 2016, 10:42:02 pm
content: Too latesee:https://www.eevblog.com/forum/chat/idiots/https://www.eevblog.com/forum/chat/and-this-is-how-i-hold-a-soldering-iron/

author: tom66
author_rank: Super Contributor
timestamp: March 15, 2016, 12:13:53 am
content: Another question, why does she appear to be in some kind of chemistry lab? There's some kind of fume hood, sinks, etc...but no oscilloscopes, soldering irons (besides one in her hand) and so on.

author: mzacharias
author_rank: Frequent Contributor
timestamp: March 15, 2016, 02:35:14 am
content: Should have known that pic wasn't exactly new...

author: zapta
author_rank: Super Contributor
timestamp: March 15, 2016, 03:18:58 am
content: Quote from: tom66 on March 15, 2016, 12:13:53 am... and no solder wire.

author: crispy_tofu
author_rank: Super Contributor
timestamp: March 15, 2016, 11:08:13 am
content: Here's the same (edited?) picture from way back in 2015...Quote from: Fungus on August 20, 2015, 01:47:24 pm

author: GreyWoolfe
author_rank: Unknown
timestamp: March 21, 2016, 01:42:47 am
content: I would love to have that shirt.

author: grouchobyte
author_rank: Regular Contributor
timestamp: March 21, 2016, 01:38:37 pm
content: Its obvious. She is using a wood burning iron and wearing a pair of laser safety glasses even though she is clearly not in any danger of exposure to laser light since the board she is working on is unpowered.And what is all this talk about chicken?
driver dse usb 2.0 video capture adaptor - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: February 25, 2016, 02:58:59 am
content: so i was walking home by the beach somebody dumped a box of trash this device was in there just the device and usb cableanybody know where i could find the driver for it

author: sony mavica
author_rank: Frequent Contributor
timestamp: March 15, 2016, 09:21:13 am
content: still looking for driver

author: SL4P
author_rank: Super Contributor
timestamp: March 15, 2016, 12:35:44 pm
content: ... stilllookingfor a picture of the device!(or other details)
Fake Professor on the First Day Prank - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: March 14, 2016, 08:09:28 am
content: Pure gold! Unfortunately these days, this would be labelled a "security incident", school goes into lock down, Police called... well you know the drill.

author: AlxDroidDev
author_rank: Frequent Contributor
timestamp: March 14, 2016, 12:55:10 pm
content: When I was on my 2nd semester of engineering, we played a prank on the freshmen. One of my colleagues, that was an older than all of us, went into their classroom in the first day of school, passed himself as the professor and presented them a list of equipment/materials they'd need for the semester:- Y-square, because T-squares were out of fashion- 4 3/4" disquettes- 100 degress protractor (not more, not less)- drawing compass for up to 200 degress- a roman numerals calculator. He suggested the HP-66SR (SR is for "Scientific Roman")- and a few more other funny equipment!The fun part is that the students were paying very close attention and taking careful notes of they list they'd have to buy. The actual professor was watching everything from the door and later he complimented us on the creativity!

author: vinicius.jlantunes
author_rank: Regular Contributor
timestamp: March 14, 2016, 02:06:34 pm
content: Quote from: AlxDroidDev on March 14, 2016, 12:55:10 pmWe had an ASCII table in our list, they should purchase a copy of the ASCII table. Can't remember the rest, there were some good stuff!
RADIATION WARNING! prop build not real  - Page 1
Forum section: electronics / general

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 14, 2016, 06:10:06 am
content: so this is the first stages of my Radiation King Power cell charger. still working on that gun too.1. Two 5050 led strips wired together.2. after all was wired it was placed inside two poly tubes wraped with something to disfuse the Green light and hide the wiring.3. a re-puposed busmann 30A fuse, to act as powercell end caps and provide power to LEDs4. STAGE 1, part A completed, stage 1 part B finish exterior add ons. and embelishments.

author: jwm_
author_rank: Frequent Contributor
timestamp: March 14, 2016, 07:15:12 am
content: Are you trying to make one of these?

author: firewalker
author_rank: Super Contributor
timestamp: March 14, 2016, 07:54:00 am
content: I would use fluorescent liquid with uv leds.Alexander.

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 14, 2016, 11:59:40 am
content: Quote from: jwm_ on March 14, 2016, 07:15:12 amsomething like that, mixed with my own version of the FALLOUT 3-4 power cell. but i think in 3, it was blue..but its my own take on it. i never try to reproduce replicas..becasue if they are not exact i tend to throw them in the garbage, and get annoyed.In the firefly finally movie serenity..the object they were scanning with on the planet miranda had vacuum tubes coming out the top of it. oddly enough the first episode of the series was also called serenity..
Happy pi day!  - Page 1
Forum section: electronics / general

author: ErikTheNorwegian
author_rank: Frequent Contributor
timestamp: March 14, 2016, 12:48:05 am
content: [ur

author: IanB
author_rank: Super Contributor
timestamp: March 14, 2016, 12:51:27 am
content: We should wait until June 28th though...

author: crispy_tofu
author_rank: Super Contributor
timestamp: March 14, 2016, 09:19:09 am
content: I saw a Vi Hart video in that thread... Here's one for this year
I needed that IC badly... - Page 1
Forum section: electronics / general

author: SopaXorzTaker
author_rank: Contributor
timestamp: March 13, 2016, 06:10:29 pm
content: What would you do if you want to extract a BGA chip from the PCB and you don't have an oven or a heat gun?Well, that's right.I really did this myself, I didn't need that PCB so much.Please don't click that link if you are sensitive to electronics.

author: Kilrah
author_rank: Unknown
timestamp: March 13, 2016, 06:19:53 pm
content: I just hope you didn't need the chip either, but then that begs the question "why in the first place".

author: JacobPilsen
author_rank: Regular Contributor
timestamp: March 13, 2016, 06:30:34 pm
content: Candle work better.

author: hans
author_rank: Super Contributor
timestamp: March 13, 2016, 10:08:12 pm
content: Luckily all of the hundreds of super-thin copper pads for those BGA balls on the substrate are still intact and reusable.Should work a treat O0

author: iampoor
author_rank: Frequent Contributor
timestamp: March 13, 2016, 11:07:58 pm
content: Not really that funny.

author: Brumby
author_rank: Unknown
timestamp: March 14, 2016, 12:39:03 am
content: Reminds me of the time I wanted to replace the power header on a motherboard when all I have was a soldering iron.... and a Dremel.Step 1: Donor board.* Cut PCB around header* Cut PCB between each of the pins* Desolder each pin from it's piece of PCB, one at a timeStep 2: Recipient board preparation.* Carefully destroy plastic header, leaving pins still undisturbed* Desolder each pin, one at a time.Step 3: Recipient board completion.* Clean out PCB holes* Fit and solder salvaged power headerI did this about 4 years ago - and the computer is still going strong. (and I only threw out the donor motherboard a couple of weeks ago.)

author: kolonelkadat
author_rank: Regular Contributor
timestamp: March 14, 2016, 04:52:00 am
content: i was going to comment that this was reminiscent of israeli electronics one might find on ebay, but I think that may be a little bit on the nose.
So here is one of my props, using what you guys have taught me - Page 1
Forum section: electronics / general

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 13, 2016, 07:09:31 am
content: i know its simple, but it serves it purpose, forgot to add, this is a test prototype for the much larger project i am doing.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 13, 2016, 09:15:00 pm
content: 6080 without base..?I suppose it's battery powered, so it wouldn't be practical to light it the natural way.Tim

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 14, 2016, 12:08:09 am
content: It had its base but this was another fried 6080 I had so I made it into this the leads are still there they re just inserted into the case to stablize it better the metal sheets I cut off so the light showed though better. Sorry for typos replied on iPad
Oh boy... has Keysight's marketing lost it too? - Page 1
Forum section: electronics / general

author: Christe4nM
author_rank: Unknown
timestamp: March 12, 2016, 04:08:38 pm
content: 1980 is calling, they want their ad idea back.

author: XOIIO
author_rank: Super Contributor
timestamp: March 12, 2016, 06:45:35 pm
content: Just... what?

author: PA0PBZ
author_rank: Super Contributor
timestamp: March 12, 2016, 06:51:17 pm
content: Well, that was funny! Wait... was it supposed to be?

author: rdl
author_rank: Super Contributor
timestamp: March 12, 2016, 07:13:39 pm
content: This is good evidence that test equipment manufacturers should not waste money making commercials.

author: Ian.M
author_rank: Super Contributor
timestamp: March 12, 2016, 08:04:02 pm
content: If it made you laugh and got you to view the product specs for 30 seconds it did its job.

author: TinkerFan
author_rank: Regular Contributor
timestamp: March 12, 2016, 08:11:09 pm
content: They did another really funny one a while ago:

author: Christe4nM
author_rank: Unknown
timestamp: March 12, 2016, 10:53:01 pm
content: Sigh. Yes it's kinda funny. Still I don't get it, fun or not. It has a totally unserious, silly and 'joke-y' feel about it. More something you'd expect for a hyped gadget, energy drink or amusement park and aimed at the latest generation of children...

author: Brumby
author_rank: Unknown
timestamp: March 13, 2016, 12:26:33 am
content: W - T - F .................

author: retrolefty
author_rank: Super Contributor
timestamp: March 13, 2016, 12:49:14 am
content: So do these ads target Approval managers or purchasing departments or is it targeting employed geeks (not me, I'm retired) to tell their bosses that they should really check out Keysight's cool ads? You would think Keysight would understand their market better then these ads might suggest. Perhaps some MBA in their marketing department is trying to "think outside the box"?

author: Ian.M
author_rank: Super Contributor
timestamp: March 13, 2016, 01:15:36 am
content: They obviously target the 'youtube generation' and are presumably hoping that they will pass the landing page at Keysite that the video links to, up the management chain to someone with purchasing authority.

author: Neganur
author_rank: Unknown
timestamp: March 13, 2016, 09:36:28 am
content: I think that was funny. *shrug*Wouldn't mind that EXA on his desk either
How do you find Contract Employment? - Page 1
Forum section: electronics / general

author: Robert Karl
author_rank: Contributor
timestamp: March 06, 2016, 05:04:58 pm
content: Hi folks,I'm just looking for some advice - whether you have experience in this or not.I'd love to get into doing some contract work. Anything in embedded and hardware design.I am confident on the technical side, but have no idea where to start on the business side.So I'd like to know:How do you go about finding work? (Most existing leads would be too close to my old employer.)Can I get by without expensive software like Altium etc?Does it matter where you live? Working for someone overseas.Any other thoughts? You can tell me it's wishful thinking, I'm sure it is.

author: Stonent
author_rank: Super Contributor
timestamp: March 06, 2016, 06:27:11 pm
content: I always used a placement agency. It doesn't cost you anything, they just get paid a fee by the employer.

author: German_EE
author_rank: Super Contributor
timestamp: March 06, 2016, 08:22:09 pm
content: Seconded on the agency thing. When you're getting started they can even help with the tax and paperwork thing so that instead of working through your own Limited Company you work through the agency. Once you get started a Limited Company is the best way to go but that means accountants and paperwork.

author: KJDS
author_rank: Super Contributor
timestamp: March 06, 2016, 09:10:19 pm
content: Almost everything in the UK that is made public is put on jobsearch or jobsite

author: Robert Karl
author_rank: Contributor
timestamp: March 10, 2016, 10:04:53 pm
content: Thanks very much for the advice everyone!Seems straight forward enough, I'll look into it.

author: Stonent
author_rank: Super Contributor
timestamp: March 12, 2016, 10:52:17 pm
content: One place I worked for made me an independant contractor with no taxes taken out, but I had the option of being "hired" by a third party so that they would take out taxes and all that stuff.So like this:Company A uses Company B for consulting.Company B hires independent contractors.Company C can be used to take care of all the pay paperwork so you don't have a massive tax bill at the end of the year.
Need help identifying both chips.. - Page 1
Forum section: electronics / general

author: krypticnexus
author_rank: Newbie
timestamp: March 12, 2016, 09:22:59 pm
content: Hello all this is my first post here. wasnt sure where to place this but i figured general chat is a good start. so from the title im trying to identify both chips on this bored. this is a pcb in a bluetooth stereo headset. im assuming the bga is the mc and the 8 pin is a reg or something.for me im no where close to a hobbyist. i just really started getting in to taking stuff apart and doing reviews on stuff and this head set just sucks so much so i was wanting to find out as much as i can and maybe find where the antena is an maybe solder an extended wire to it to make this headset better because currently i have a set of 7 dollar POS.Thanks for all the helpSincerelyNOOB anthony

author: station240
author_rank: Unknown
timestamp: March 12, 2016, 09:44:08 pm
content: The blue component top right is part of the Antenna circuit, the PCB layout of it and the components it's attached to give it away.One of the chips is indeed an EEPROMhttp://www.giantec-semi.com/upload/datasheet/GT24C512_DS_Adv.pdfI didn't look up the other IC.

author: krypticnexus
author_rank: Newbie
timestamp: March 12, 2016, 09:51:51 pm
content: Quote from: station240 on March 12, 2016, 09:44:08 pmAwesome thank you very much. i thought that was the antena but i wasnt sure. thanks for finding the 8 pin chip this does help (here i thought it was a reg or something didnt even think of an eeprom). im still searching for the bga chip. hoping to find it because packaging says it has bluetooth 4.0 and im not really that sure about it.

author: armandas
author_rank: Frequent Contributor
timestamp: March 12, 2016, 10:07:31 pm
content: The bigger chip is probably this:http://www.csr.com/products/csr8645

author: krypticnexus
author_rank: Newbie
timestamp: March 12, 2016, 10:09:06 pm
content: Quote from: armandas on March 12, 2016, 10:07:31 pmwow this is funny i got your email about your reply as i was looking at the csr 8675 thats crazy. thanks for all the help ill take a look at the 45. thanks so much
UPDATE RADIATION WARNING! prop build STAGE 1 Part B - Page 1
Forum section: electronics / general

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 16, 2016, 01:18:46 am
content: so here is a update on my radiation power cell prop. in ode to Fallout 3, and few other games and videos.about donefinished from a side viewIll bring you more updates as it comes along.

author: Halcyon
author_rank: Unknown
timestamp: March 16, 2016, 07:28:59 am
content: Speaking of radiation, anyone want to chip-in to buy Dave a BTTF radiation suit to do future mailbag videos in? I think he'd look rather trendy.
Oxford Electric Bell - Ringing since 1840 - Page 1
Forum section: electronics / general

author: Photon939
author_rank: Regular Contributor
timestamp: March 11, 2016, 08:21:36 pm
content: https://en.wikipedia.org/wiki/Oxford_Electric_BellI had never heard of this before, ran across the article clicking random articles pertaining to batteries.Powered by two stacks of dry cells, a small metal ball transfers electrostatic charge from one to the other ringing the bells in the process. Wonder what the approximate voltage of the piles are, or how many coulombs of charge have been transferred since it was made.Thought it would be fun to share here.

author: Gyro
author_rank: Super Contributor
timestamp: March 11, 2016, 08:55:30 pm
content: I bet far more charge has been transferred via leakage in the insulators at the bottom than by the clapper. Impressive.

author: Ian.M
author_rank: Super Contributor
timestamp: March 11, 2016, 08:57:27 pm
content: It comes up from time to time here. TryZamboniin the forum search.Edit: New Video of it - seehttps://www.eevblog.com/forum/chat/the-battery-that%27s-lasted-176-years/
Counterfeit IGBT modules - Page 1
Forum section: electronics / general

author: wagon
author_rank: Frequent Contributor
timestamp: March 08, 2016, 05:01:27 am
content: I needed a Eupec (Infineon) BSM25GD120DN2E3224 IGBT module for a repair on a VSD. I looked around, found E14 had them but didn't like the price. I took a punt, and with the consent of the customer, got a much cheaper part (allegedly genuine) off Aliexpress.It's not genuine, as it turns out.The supplier does not really want to refund my money, saying "But they can really work the same. You can try it dear. Is it OK?"All the labelling, etc. is very close. The heatsink surface on the 'Chinese' part is warped. Have a look at the photo.... the top part is the 'fake', the bottom is the blown up original.

author: wraper
author_rank: Unknown
timestamp: March 08, 2016, 05:44:09 am
content: Open the dispute, upload the photos. Most likely Aliexpress will be on your side.

author: Towger
author_rank: Super Contributor
timestamp: March 08, 2016, 05:51:29 am
content: Open a dispute, but be warned Aliexpress will offer increasing percentages of refunds and take ages to respond to each round...I would also take better photos and use as simple and clear English as possible.

author: wagon
author_rank: Frequent Contributor
timestamp: March 11, 2016, 04:02:28 am
content: Well, I got a refund, less the freight cost. I'm keeping the part.Does anyone want to buy an el-cheapo IGBT module?

author: XOIIO
author_rank: Super Contributor
timestamp: March 11, 2016, 07:50:38 am
content: Quote from: wagon on March 11, 2016, 04:02:28 amI say you load it up and see how long it lasts.

author: wagon
author_rank: Frequent Contributor
timestamp: March 11, 2016, 08:44:32 am
content: Quote from: XOIIO on March 11, 2016, 07:50:38 amTune for maximum smoke!

author: Karel
author_rank: Super Contributor
timestamp: March 11, 2016, 08:55:25 am
content: Quote from: wagon on March 08, 2016, 05:01:27 amHow surprising...

author: wagon
author_rank: Frequent Contributor
timestamp: March 11, 2016, 08:59:07 am
content: Quote from: Karel on March 11, 2016, 08:55:25 amA pretty convincing fake, too. Until it's opened up.

author: tszaboo
author_rank: Super Contributor
timestamp: March 11, 2016, 10:16:33 am
content: If you ordered a BSM25GD120DN2E3224 and you did not get a BSM25GD120DN2E3224, open a dispute, and let them burn. We should really spend some money already, teaching in Chinese elementary schools that the "it looks the same =/= it is the same".And dont buy from aliexpress anything remotely critical.
Clara Rockmore - Theremin - Page 1
Forum section: electronics / general

author: Richard Crowley
author_rank: Super Contributor
timestamp: March 09, 2016, 09:10:15 pm
content: The Google Doodle today (at least here in the US) is about the 105th birthday of Clara Rockmore.Clara Rockmore was the first virtuoso performer on Leo Theremin's "aetherphone", now known as the "Theremin".The doodle includes an entertaining "training" animation, and then an animation of a performance by Ms. Rockmore.Obligatory Electronic content: It is claimed that Theremin accidentally discovered the phenomenon of producing audible hetrodyne signals which could be used as a musical instrument. Others claim there was a prior US patent covering the principle.Theremin was reputed to have designed the famous passive "bug" installed in the US Ambassador's residence in Moscow.And it was a variant of the Theremin used in the famous song "Good Vibrations" by the Beach Boys.https://en.wikipedia.org/wiki/Theremin

author: rrinker
author_rank: Super Contributor
timestamp: March 09, 2016, 10:12:00 pm
content: And after the animated performance, you get to play it yourself.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 10, 2016, 02:51:37 pm
content: My page:http://seventransistorlabs.com/Theremin/

author: KJDS
author_rank: Super Contributor
timestamp: March 10, 2016, 08:37:45 pm
content: I've had a top ten hit with one of these guys

author: TimFox
author_rank: Super Contributor
timestamp: March 10, 2016, 11:38:07 pm
content: Quote from: Richard Crowley on March 09, 2016, 09:10:15 pmI must look it up in my Theremin references, but I believe that the electronic instrument in "Good Vibrations" was actually a Heath audio oscillator with a long arm attached to the tuning knob, rather than a heterodyne generator.A wonderful book was published recently by Univ. of Illinois Press:http://www.press.uillinois.edu/books/catalog/98mgt7tm9780252072758.htmlIt goes into great detail about the life of Leon Theremin (or Lev Termen) both during his American residence, and the awful things that happened to him when he returned to the Soviet Union (bad career move).

author: Richard Crowley
author_rank: Super Contributor
timestamp: March 11, 2016, 12:31:24 am
content: There seem to be conflicting reports whether a Heathkit oscillator with a mechanical arrangement was used, or whether it was an "Electro-Theremin" (aka. "Tannerin") which appeared to use some sort of touch-sensitive resistive element (like a slide-pot).https://en.wikipedia.org/wiki/Electro-ThereminHere is a video of a performance with the Tannerin (starting at 0:29)https://youtu.be/mdt0SOqPJcgThis YouTube video is obviously a "lip-sync" to the studio mixdown recording and not a live performance
Tindie Opens Flea Market for Components,  Tools, Gear, etc. - Page 1
Forum section: electronics / general

author: Carl_Smith
author_rank: Frequent Contributor
timestamp: March 09, 2016, 10:14:58 pm
content: So Tindie has opened a Flea Market section where you can unload your old test gear, components, and other electronic stuff that needs a new home. Maybe it's time to dig through the closet and start posting those old tubes of MOSFETs and boxes of capacitors and stepper motors I never used...https://www.tindie.com/browse/flea-market/

author: calexanian
author_rank: Super Contributor
timestamp: March 11, 2016, 04:30:25 am
content: I may have a few things to try on there.

author: bitseeker
author_rank: Super Contributor
timestamp: March 11, 2016, 04:57:59 am
content: Cool. It's good to have alternatives to eBay. Thanks for the heads up, Carl.
Safety Issue: Amazon Kindle Fire Electric Shock Risk - Quick Side by Side Look. - Page 1
Forum section: electronics / general

author: sleary78
author_rank: Unknown
timestamp: March 10, 2016, 08:57:13 pm
content: Hi All,I dont post of the forum much but I thought this one might be important enough. I bought one of these kindle fire 7" tablet things for my kid and I got this safety notice through from amazon. Seems that its possible to stress the USB connector in such a way as its possible to short it to mains!!! Amazon sent me a recall notice but I kinda worry people with either not get these if they were sent as gifts or maybe they'll ignore them. As far as i'm aware this only affects the UK charger. Scary to think i let my 2 year old use this plugged in before i got the notice!Here is a very very short side by side comparison video.https://youtu.be/clHvpuyaLRY

author: Kilrah
author_rank: Unknown
timestamp: March 10, 2016, 09:14:41 pm
content: Nothing to do with USB or "shorting to mains", just sounds like the black cover may separate from the main white body when pulling on it, exposing the innards with their live parts. Bad aging glue or incorrect plastic welding is my guess...As to CE it isn't a guarantee of much as it doesn't need independent testing.

author: sleary78
author_rank: Unknown
timestamp: March 10, 2016, 09:17:27 pm
content: Thanks for that.Thing feels sold enough to me and I wasnt able to tear it apart easily. Maybe a specific batch affected?

author: Kilrah
author_rank: Unknown
timestamp: March 10, 2016, 09:56:08 pm
content: Recalls are typically based on failure of a few units which may be a ridiculously low percentage of the total, but you just want to avoid any risk of further issues (or CYA)We just got a recall for a major part we use at work, 2 units have failed in a batch and the manufacturer just takes no chances and decided to replace the entire batch, even if the rest has been stressed more without showing issues and is probably just fine.
express pcb - Page 1
Forum section: electronics / general

author: Adhith
author_rank: Frequent Contributor
timestamp: January 16, 2016, 03:37:58 pm
content: hello everyone...just begined to use the software express pcb. but i cant get the pcb holes in the print layout. can anyone help..??

author: celia
author_rank: Newbie
timestamp: March 10, 2016, 07:43:18 am
content: Which program do you use?

author: Rerouter
author_rank: Super Contributor
timestamp: March 10, 2016, 08:06:32 am
content: pcb express its a locked in sandbox editing package, handy when your beginning, but locked to printing for thermal transfer or using there production house,Pretty sure you have to tick the last option "silkscreen, pads,... etcPersonally for simple stuff its fine, but i hopped to kicad after i started knocking on the limitations later on,
Making a DIY transistor radio (1972) - Page 1
Forum section: electronics / general

author: gildasd
author_rank: Frequent Contributor
timestamp: March 11, 2016, 10:19:16 am
content: http://www.mds975.co.uk/Content/george_dobbs_trf_radio.html

author: Howardlong
author_rank: Super Contributor
timestamp: March 11, 2016, 10:56:13 am
content: Quote from: gildasd on March 11, 2016, 10:19:16 amThat's what started me off. I never could get the final regenerative stage to work, I am aware that there is some suggestion nowadays that it never would as described.Irrespective, I owe that book my career.

author: mikerj
author_rank: Super Contributor
timestamp: March 11, 2016, 11:40:57 am
content: The same book that got me interested in electronics. I remember my dad helped me with the construction as I was pretty young.

author: gildasd
author_rank: Frequent Contributor
timestamp: March 11, 2016, 02:51:54 pm
content: Quote from: mikerj on March 11, 2016, 11:40:57 amI remember there being a whole series of "technical Ladybirds" at the local library... But don't quote me, I was 7!

author: StuUK
author_rank: Frequent Contributor
timestamp: March 11, 2016, 03:23:06 pm
content: That's made me all nostalgic....

author: Gyro
author_rank: Super Contributor
timestamp: March 11, 2016, 04:07:06 pm
content: Nah, That's modern Stuff...How To Build a Two Valve SetThe images and text presented below are taken from a series of cigarette cards dating from 1929. The cards were issued with Godfrey Phillips cigarettes.http://www.r-type.org/articles/art-026.htm
The Little Box Challenge (tiny power inverter) - Winners Announced - Page 1
Forum section: electronics / general

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: March 09, 2016, 12:27:41 am
content: https://www.littleboxchallenge.com/Just found out about this rather cool challenge that Google organised, the goal was to design a tiny power inverter with a density of at least 50 Watts per cubic inch.The winners managed to beat the requirement approximately threefold (143 Watts per cubic inch) with their GaN based transistors:https://www.littleboxchallenge.com/pdf/finalists/56568-Tech.pdf

author: Smokey
author_rank: Super Contributor
timestamp: March 09, 2016, 03:06:40 am
content: The winner came up with some really creative packaging.

author: deephaven
author_rank: Frequent Contributor
timestamp: March 09, 2016, 10:43:19 am
content: Amazing achievement. Quite a few clever people on the team. I wonder how many GaN transistors they blew up during development!

author: daqq
author_rank: Super Contributor
timestamp: March 09, 2016, 10:48:00 am
content: Great! I look forward to seeing more such contests!
Industrial Automation 1955 video from GE - Page 1
Forum section: electronics / general

author: Stonent
author_rank: Super Contributor
timestamp: March 06, 2016, 06:35:27 am
content: This was an interesting video on automation from over half a century ago by GE about the benefits of industrial automation. At the time, it was simply called the "Apparatus Division" of GE.What's most interesting I think is within the last 10 minutes where they talk about designing for production, and the last 6 minutes showing machinery with programmable logic.They start with an automatic milling machine that instead of being CNC controlled like they have today, it uses a scale template that it repeatedly traces around. Then they go into using computer generated instructions stored on tape and cards.Also they show in the video somewhere about automated test procedures with ignition coils, automotive condensers, and fluorescent starters.Just really neat.

author: MrSlack
author_rank: Frequent Contributor
timestamp: March 07, 2016, 09:53:03 am
content: That is awesome. Thanks for posting it

author: rrinker
author_rank: Super Contributor
timestamp: March 08, 2016, 02:11:58 pm
content: In the machine shop I worked my first job out of college, that I've mentioned in other posts, we had two of GE's earliest numeric controls, the 550 and 1050, running lathes. The 550 was probably the successor to that mag tape system - after they found mag tape and a dirty shop environment don't go together very well. It did the same basic thing, play back the tape to control the servos, except it was paper tape, not mag tape. Ours was retrofitted with an 8080 based storage unit so you could runt he paper tape once and it stored it in the computer memory. From there you could rerun it as many times as you wanted, pause, or single step it. For this purpose it had a row of LEDs across the paper tape reader so it literally simulated a paper tape. The 1050 was more advanced, and included the computer, but loading programs was still accomplished by paper tape. So was loading the operating system, which had a tendency to fail a few times. There was a design flaw - no take up reel for the tape, it just dumped into a hopper below the reader head. So when it failed to initialize, there I was, hand rolling the paper tape back onto the source spool to try again. Contrast that to the newest machine we had, another lathe with an automatic stock feeder that had a very modern (at the time - 1989 or so) control with a color CRT that could give a 3D view of the part being worked. And everything in between. Was an interesting place to work.

author: Stonent
author_rank: Super Contributor
timestamp: March 09, 2016, 03:03:04 am
content: I found another copy of the same video here. The audio and video are a bit cleaner. It sounds like they ran a low pass filter on it.
NUTS! - Page 1
Forum section: electronics / general

author: German_EE
author_rank: Super Contributor
timestamp: March 07, 2016, 06:33:57 pm
content: OK, so I made a mistake and ordered the wrong part and what arrived in the post is of no use to me. However, I hate throwing anything away.Free to a good home, bag of 20 nuts with 0.5 inch coarse thread. Send a PM with a mail address if you want them.No replies by 20th March and they go in the metals recycling bin.

author: amyk
author_rank: Super Contributor
timestamp: March 08, 2016, 04:00:14 am
content: It was only until I got to "coarse thread" that I stopped wondering what kind of (tree) nuts these were.Sorry, can't help you with getting rid of them...

author: German_EE
author_rank: Super Contributor
timestamp: March 08, 2016, 08:14:07 am
content: Yeah, others have said the same thing. I was hoping for nuts to fix BNC connectors to front panels and instead I got nuts more suitable for engine blocks.

author: HighVoltage
author_rank: Super Contributor
timestamp: March 08, 2016, 08:31:07 am
content: What you have is probably12/ inch 13 pitch Coarse Thread UNC ?Right?Every once in a while I use them, so if nobody takes them, keep me in mind.

author: DenzilPenberthy
author_rank: Frequent Contributor
timestamp: March 08, 2016, 11:44:59 am
content: I would use them but posting from Germany to UK would probably cost more than just buying new ones hereCurrently restoring a 1950's car and I do work on a friend's early 50's tractor.

author: NilByMouth
author_rank: Regular Contributor
timestamp: March 08, 2016, 11:53:01 am
content: I thought it was a post about the USA republican voters backing Trump.

author: wkb
author_rank: Super Contributor
timestamp: March 08, 2016, 06:24:12 pm
content: The Battle of the Bulge came to mind when I read this subject

author: Len
author_rank: Frequent Contributor
timestamp: March 08, 2016, 07:03:12 pm
content: Quote from: wkb on March 08, 2016, 06:24:12 pmSame here.
Toyota develops wearable device for blind people - Page 1
Forum section: electronics / general

author: chris_leyson
author_rank: Super Contributor
timestamp: March 08, 2016, 06:50:40 pm
content: http://www.bbc.co.uk/news/technology-35753978https://www.youtube.com/watch?v=sNoPV0epfHA&feature=youtu.beWas also impressed with what Microsoft are doingWas once stuck in a cave system with no light, had to use sound and touchy-feely to find my fellow cavers.
The POS switch does what it was meant to do - shorted to ground. - Page 1
Forum section: electronics / general

author: HAL-42b
author_rank: Frequent Contributor
timestamp: March 05, 2016, 07:50:00 pm
content: Interesting guy from France. Also does teardowns of old Russian military electronics.

author: Halcyon
author_rank: Unknown
timestamp: March 06, 2016, 10:13:24 am
content: I know D-Link have tried to repair their reputation with their "business" class of networking devices (attempting to mimic HP and Cisco devices), but even in the 1990's, I avoided D-Link like the plague.Their switches, routers, wireless access points and network cards are renowned in the industry as being slow, flakey and sub-standard at best.If you're in the home market, at least spend the extra few dollars and get yourself a Netgear, Linksys even Netcomm for half-decent performance and reliability.

author: cimmo
author_rank: Frequent Contributor
timestamp: March 07, 2016, 01:16:14 am
content: This guy finds some amazing stuff - obscure Soviet military/aviation hardware in particular.Anyone with even a passing interest in electronic teardowns needs to have his channel bookmarked.
Keysight Scope Giveaway, Canadians and South Africans must pass a math test  - Page 1
Forum section: electronics / general

author: kg4arn
author_rank: Unknown
timestamp: March 06, 2016, 10:37:44 pm
content: So my friend actually won the Keysight scope giveaway.Take a look at item 15 of the acceptance form.Canadians and South Africans must pass a Mathematical Skill Test****************************15.For Residents of Canada and South Africa Only:To be declared a winner, in accordance with local laws, Canadian and South African residents must correctly answer the mathematical skill-testing question below without any assistance of any kind:Mathematical Skill-Testing Question:Step 1: Multiply 15 by 60Step 2: Add 150 to the answer from Step 1Step 3: Divide the answer from Step 2 by 5Step 4: Subtract 25 from the answer to Step 3My answer to the mathematical skill-testing question above is: ______________________******************************

author: georges80
author_rank: Frequent Contributor
timestamp: March 06, 2016, 10:44:17 pm
content: The 'test' is most likely to comply with some law or other regarding contests & prizes in those particular countries and possibly various tax implications...cheers,george.

author: kg4arn
author_rank: Unknown
timestamp: March 06, 2016, 10:57:51 pm
content: Agree. I didn't think Keysight came up with it.Seems like an odd legal requirement

author: Len
author_rank: Frequent Contributor
timestamp: March 06, 2016, 10:59:15 pm
content: Quote from: georges80 on March 06, 2016, 10:44:17 pmThat's right, it's to pretend the giveaway is a contest of skill, to avoid anti-gambling laws.

author: Brumby
author_rank: Unknown
timestamp: March 07, 2016, 12:16:58 am
content: Quote from: Brumby on February 16, 2016, 01:01:40 amThe idea has been around for a while.
720p hd action camera - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: February 05, 2016, 01:31:50 am
content: my friend won a gopro so he gave me his old 720p camera that is the style of a gopro he brought it 2years ago for 51usd what i wanted to know is if it was a real 720p camera and not just upscaled from sd to hdhere is a sample clip it looks ok to me but im not too sure its a true 720p camera maybe it would be better on a bright sunny dayhttps://www.sendspace.com/file/pwg750

author: profany
author_rank: Contributor
timestamp: March 06, 2016, 07:37:22 pm
content: wow, its looks like crapawsomethanks
Severe hand burn by soldering iron, TAKE CARE - Page 1
Forum section: electronics / general

author: delmadord
author_rank: Regular Contributor
timestamp: March 09, 2016, 01:13:27 pm
content: Shortly after these stock photos were taken, all three models were taken to the ER with third-degree hand burns.It is fromhttp://9gag.com/gag/aQ87DqdIt might be already here, I am sorry if so, but if not, hope you had a laughterCheers.

author: djQUAN
author_rank: Frequent Contributor
timestamp: March 09, 2016, 01:34:52 pm
content: https://www.eevblog.com/forum/chat/idiots/
TV for dummies - Page 1
Forum section: electronics / general

author: Dataforensics
author_rank: Unknown
timestamp: March 05, 2016, 11:19:02 am
content: Perhaps you have to have been actually watching to find this funny. I nearly sprayed my coffee.There is a new (To UK) TV programme on H2 called Engineering Disasters.One of the accidents shown last night considered a goods train that derailed crossing a swing bridge.The bridge was later replaced with a lift bridge.Like something out of the Simpsons.The construction expert kindly informed the viewers that."A vertical lift bridge is one that lifts vertically"You learn something everyday.
Lego Programmable Marble Music Machine. - Page 1
Forum section: electronics / general

author: XOIIO
author_rank: Super Contributor
timestamp: March 02, 2016, 03:27:56 pm
content: That is incredibly awesome, but I'm not entirely convinced what we are hearing is the original audio, or at least in it's entirety, the bit with the guitar strings just sounds off, kind of ruined it actually, and it was out of nowhere, I thought originally that it was just added in post effects.Still massively impressive.

author: nctnico
author_rank: Super Contributor
timestamp: March 02, 2016, 04:45:35 pm
content: Very cool!Only a few Lego parts in there though.

author: dexters_lab
author_rank: Unknown
timestamp: March 02, 2016, 04:57:46 pm
content: there are other videos on the channel showing construction, a lot of time and effort! awesome

author: HAL-42b
author_rank: Frequent Contributor
timestamp: March 02, 2016, 07:09:16 pm
content: Quote from: nctnico on March 02, 2016, 04:45:35 pmThe program memory is Lego. 240 words 26bits each. (I counted them)

author: rickv14623
author_rank: Frequent Contributor
timestamp: March 02, 2016, 07:35:46 pm
content: Saw this earlier today. Quite impressive. Not everything has to be electronic!

author: XOIIO
author_rank: Super Contributor
timestamp: March 02, 2016, 07:39:28 pm
content: Quote from: rickv14623 on March 02, 2016, 07:35:46 pmwell, not mostly electronic anyways. It's an electric guitar from the look of it, when I watched it through again. That would probably explain the "weirdness" of the sound I first posted about.

author: pickle9000
author_rank: Super Contributor
timestamp: March 02, 2016, 08:26:04 pm
content: That is an impressive bit of artwork.

author: OiD
author_rank: Regular Contributor
timestamp: March 04, 2016, 07:07:47 pm
content: Don't know how but i watched this video about 10 minutes ago and I was'nt expecting it here. A bit of a misleading tittle, the memory is lego! An amazing machine, you rarely see someone playing good music from their inventions too. Loved the end of the video

author: Artlav
author_rank: Frequent Contributor
timestamp: March 04, 2016, 07:23:27 pm
content: Great thing.Not quite real sound, but still pretty impressive.

author: chris_leyson
author_rank: Super Contributor
timestamp: March 04, 2016, 07:25:13 pm
content: Thanks for the post HAL-42b, I loved it, I spent a lot of last night watching Wintergatan live performaces on Youtube. Thankyou for introducing me to a new band

author: HAL-42b
author_rank: Frequent Contributor
timestamp: March 05, 2016, 03:20:50 am
content: Quote from: chris_leyson on March 04, 2016, 07:25:13 pmFunny you should mention that because I've been doing the same thing. It is rare to see someone actually paly the theremin like a real instrument.
Rant about Samsung Smart Manager Provider - Page 1
Forum section: electronics / general

author: TinkerFan
author_rank: Regular Contributor
timestamp: March 02, 2016, 02:28:43 pm
content: I know this is not a smartphone or PC forum, but I just have to do a rant about this app. I'm probably not the only one who has this problem.First, it installed itself automatically and has access to almost every permission, it could possibly get. Samsung claims, it would be an app which optimizes the performance of your phone... By the way Samsung: IF I want to optimize the performance, I can install an app for that ON MY OWN or use the onboard tools for that!The second thing that annoys me is, that it keeps showing me notifications about how I could optimize my battery usage, and that for example Spotify uses a lot of battery while it is running. THANK YOU, I didn't know. It's about 2 notifications per day!When I tried to uninstall or deactivate it today, I found out that that is simply not possible. I can even deactivate the google apps, but for this I cannot even turn the notifications offand it restarts automatically after I have forced it to stop. Not that I didn't expect that, but still...Has anyone an idea how to get rid of this thing without rooting the phone (or breaking it)?

author: kaz911
author_rank: Super Contributor
timestamp: March 03, 2016, 11:30:41 pm
content: Samsungs are known to be loaded with crap ware you can't get rid off - so why buy it at all? And every time you get updates - they want permission for more and more and more intrusions into what is on your phone.If I wanted an Android phone - my choice would be the one with least crap on it from the factory. So usually a Nexus if it had to be Android.

author: XOIIO
author_rank: Super Contributor
timestamp: March 03, 2016, 11:39:56 pm
content: So, it's not possible to basically wipe android completely and do an install of the pure distro?

author: fantis1337
author_rank: Contributor
timestamp: March 04, 2016, 06:01:47 pm
content: If you are unhappy with your samsung bloatware you should root your phone and uninstall that stuff. Pretty much most popular samsung phones have root tutorials on the net.

author: TinkerFan
author_rank: Regular Contributor
timestamp: March 04, 2016, 07:08:38 pm
content: Yea, I'm thinking about it, but there still is the risk and I had no problem with it so far...
Help to identify manufacturer - Clearer picture added - Page 1
Forum section: electronics / general

author: The Good Dr
author_rank: Contributor
timestamp: March 03, 2016, 04:55:07 pm
content: Hello everyone can anyone help me identify the manufacturer of this encoder.The part has unfortunately been re badged by the British firm Control Transducers.The logo looks like a stylized F or possibly an I.See photo,Many thanks for looking

author: Stonent
author_rank: Super Contributor
timestamp: March 04, 2016, 03:47:14 pm
content: The picture is not clear enough that I can tell.

author: tino_so
author_rank: Contributor
timestamp: March 04, 2016, 03:57:25 pm
content: Do you mind trying posting another photo? Sorry I did not get where this item comes from.

author: The Good Dr
author_rank: Contributor
timestamp: March 04, 2016, 04:29:17 pm
content: Hello, thanks for looking. I have uploaded a clearer picture, many thanks
Dumpster finds of the day - Page 1
Forum section: electronics / general

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 03, 2016, 12:52:21 am
content: First off sorry, accidetly posted this over in Beginners chat..was not paying attention to what room i was in. so if someone could delete that since it wont let me id be thankful.and here is what i found today..with a labtop, some circuit breakers, and a big hefty relay. <--these were not cool enough to post. nice but not awesome.

author: rrinker
author_rank: Super Contributor
timestamp: March 03, 2016, 01:29:18 am
content: Acopian - right down the street from where I grew up. Still there, but it's a different name now.Also home of Carl Weller and the original Weller soldering gun.

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 03, 2016, 01:51:54 am
content: That pretty cool, i live right down the street from the wrong side of the tracks, and try not to go there at night!But i am glad that i finally found people who think the stuff i find is as cool as i think it is. My wife begs to differ..and tells me to get rid of my junk.

author: retrolefty
author_rank: Super Contributor
timestamp: March 03, 2016, 02:07:46 am
content: We used tons of Acopian power supplies at a oil refinery I worked at. Little ones like those pictured but mostly of the 24vdc values for building small local 4-20ma current loops. They also made custom rack mounted high current models. They had a large option list when purchasing the models and shipped pretty quick. We used a lot of high current unregulated 24vdc Acopian supplies, simple but rugged. Don't know if they are still a thing. I'll have to goggle.

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 03, 2016, 02:09:34 am
content: i had looked em up, they still seem to carry a hefty tag on them for new units.

author: RobertoLG
author_rank: Frequent Contributor
timestamp: March 03, 2016, 02:15:29 am
content: I wish I could get some cool stuff like you do lol

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 03, 2016, 03:47:35 am
content: id trade the cool stuff i find for instant knowlege in being a EE, so i could make anything.

author: RobertoLG
author_rank: Frequent Contributor
timestamp: March 03, 2016, 05:41:31 am
content: Quote from: Shadetreeprops on March 03, 2016, 03:47:35 amwhy don't you have both? learn and have the cool stuff to play with

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 03, 2016, 01:15:30 pm
content: Quote from: RobertoLG on March 03, 2016, 05:41:31 amI will eventually have the knowledge, but i just want more time to deditcate to it. In practice, and theroy. So that i can advance myself quicker.