hybridfree/eevblog-posts huggingface dataset:
Thanks a lot, Dave. - Page 1
Forum section: electronics / general

author: strangersound
author_rank: Regular Contributor
timestamp: April 30, 2019, 10:46:10 pm
content: They turn it on before taking it apart I'm just left with a vague sense of what's really going on. I see new gear all the time in the audio realm and the first thing I wanna to see is the innards, man. Your hitting me with all this hype and marketing voodoo and I just want the dirty details.SSL (I think...) recently dropped a new six channel mixer that they claim is everything a normal size SSL is, which is a serious claim. There's no shortage of product showcases and monkeys reading slick copywrite, and I've seen a thousand pictures, but I've yet to see what it looks like inside.Needless to say, I'm addicted to teardowns. You could do a teardown on a ham sandwich and I'd watch that shit.

author: Mortymore
author_rank: Frequent Contributor
timestamp: April 30, 2019, 11:52:11 pm
content: Quote from: strangersound on April 30, 2019, 10:46:10 pmI'd love to see that ham sandwich teardown too. There may be some interesting chips inside.

author: NiHaoMike
author_rank: Super Contributor
timestamp: May 01, 2019, 12:41:15 am
content: I recall Dave did a "cake teardown" several years back.

author: EEVblog
author_rank: Unknown
timestamp: May 01, 2019, 01:11:32 am
content: Quote from: NiHaoMike on May 01, 2019, 12:41:15 am

author: German_EE
author_rank: Super Contributor
timestamp: May 01, 2019, 05:15:10 pm
content: Damn, I want some cake now and it's a public holiday today so everything is shut.

author: Kjelt
author_rank: Super Contributor
timestamp: May 01, 2019, 05:33:34 pm
content: Quote from: German_EE on May 01, 2019, 05:15:10 pmYou have a free holiday and are complaining?

author: GreyWoolfe
author_rank: Unknown
timestamp: May 01, 2019, 10:40:54 pm
content: Quote from: strangersound on April 30, 2019, 10:46:10 pmI love doing teardowns on ham sandwiches. Right into my belly.
Juul? - Page 1
Forum section: electronics / general

author: Rick Law
author_rank: Super Contributor
timestamp: April 30, 2019, 08:50:07 pm
content: I am a bit surprise that there isn't a Juul tear down in this forum thus far... I found some juul tear downs on youtube mostly focused on looks and ease of use, but none done by EE people like the folks here who can comment on the electronics inside.I can tear mine apart, but I am afraid I don't know enough to make good assessment of the electronics inside. Consider this an invitation for someone with a Juul and want to share your expert opinion on what's inside...

author: amyk
author_rank: Super Contributor
timestamp: May 01, 2019, 01:18:16 am
content: I thought bigclivedotcom did one, but it was a different "vaporette" product:
Microscope illuminators - Page 1
Forum section: electronics / general

author: rthorntn
author_rank: Frequent Contributor
timestamp: April 29, 2019, 07:25:40 am
content: Hi All,I have an Nikon SMZ660, with the C-W10xB/22 eyepieces and G-AL 0.7x objective on a boom, soldering under it with the cheap MIC-209 LED ring lamp works well for me.I have a camera and adapter that goes in one of the eyepiece cavities, I want to use it for board inspection, it works but I'm getting a ton of reflection from the pads, pins and solder, anything silver goes white with overexposure, I have tried changing the camera settings, lamp brightness and using printer paper as a makeshift diffuser (the diffuser helped a bit) has anyone had this issue and solved it?Thanks.Richard

author: ElectronicSupersonic
author_rank: Regular Contributor
timestamp: April 29, 2019, 09:23:05 am
content: Although I don't use/have microscope, I know few things about photography. In photography to reduce reflections or take pictures through the glass/water, polarising filters are used (attached to the lens). By adjusting the filter's position (rotating the adjustment ring in any direction) at least some of reflections can be removed. To test whenever or not a polarising filter would help in your case, you can use sunglasses with polarising lenses (these are not so uncommon; for instance Polaroid usually use such lenses).That being said try adjusting position of the light ring relative to the board (angle, distance). This should in theory reduce glare or make it less annoying.

author: jfiresto
author_rank: Frequent Contributor
timestamp: May 01, 2019, 07:04:06 pm
content: I am having the same issue while setting up a video microscope. The effectively 0.7X or so auxiliary objective I added: distances the LED ring light, casts its light closer to perpendicular to the PCB, and strengthens its reflections.I get plenty of light onto the camera sensor and plan to quell the reflections by fashioning a polarizing filter between the ring light and PCB, and another rotated 90 degrees with respect to the first, between the PCB and objective. I have all the material and tooling, but have not had a chance to execute the idea.
naming things "ardu-foo" or "foo-duino" - Page 1
Forum section: electronics / general

author: djacobow
author_rank: Super Contributor
timestamp: April 30, 2019, 12:54:56 am
content: What are the copyright implications of naming a project / product with parts of the Arduino name, like, say "Ardushovel" or "Shovelduino", if you incorporated an Atmega and some terrible spaced headers into a shovel? I mean, assuming that those names are not already in use. I'm really asking about incorporating parts of the familiar Arduino name into things.And no, my project is not a shovel with blinky LEDs, but that was just the dumbest thing that came to mind in 10 seconds.

author: langwadt
author_rank: Super Contributor
timestamp: April 30, 2019, 01:01:15 am
content: Quote from: djacobow on April 30, 2019, 12:54:56 amfromhttps://blog.arduino.cc/2013/07/10/send-in-the-clones/– ClonesA market developed for products we call Clones which are exact (or almost exact) replicas of Arduino boards with a different branding , i.e. they are usually named with some variation of Ardu-something or something-duino. These products are released according to trademark laws (unless they copy almost exactly our graphics which is not open-source) and have a place in the market.

author: djacobow
author_rank: Super Contributor
timestamp: April 30, 2019, 02:27:54 am
content: Thanks. The thing I have in mind is more akin to a derivative, like Adafruit Flora, but it looks like they're fine with this. Excellent.

author: helius
author_rank: Super Contributor
timestamp: April 30, 2019, 03:45:55 am
content: The name Arduino is itself taken from an Italian espresso machine.

author: retrolefty
author_rank: Super Contributor
timestamp: April 30, 2019, 04:43:47 am
content: As I recall the name came from a local drinking pub the original developers hung out at and they decided to use it's name.

author: Zbig
author_rank: Frequent Contributor
timestamp: April 30, 2019, 04:51:24 pm
content: First rule of naming a thing ardu-something or blah-duino in 2019: don't

author: djacobow
author_rank: Super Contributor
timestamp: April 30, 2019, 05:02:02 pm
content: Quote from: Zbig on April 30, 2019, 04:51:24 pmI make a point of always being a step or two behind the times. I still have a blog.More seriously, yeah, it's not the sexiest.

author: NorthGuy
author_rank: Super Contributor
timestamp: April 30, 2019, 07:01:24 pm
content: Quote from: djacobow on April 30, 2019, 05:02:02 pmYou can rename as time goes by. Don't forget to change capitalization. Say, you had ID2000, then you rename it to iDuino, and when this wears out, you rename it to IdIoT, and so on.
Do you keep a portable kit? - Page 1
Forum section: electronics / general

author: DDunfield
author_rank: Regular Contributor
timestamp: April 30, 2019, 02:06:41 am
content: Interested in hearing if anyone else keeps a portable kit/lab, and what you keep in it. Always on the lookout for new ideas.Here's whats in mine:EDIT: Removed all the text as it was clearly too wordy.
Just discovered an amazing device.... - Page 1
Forum section: electronics / general

author: MikeSW17
author_rank: Newbie
timestamp: April 29, 2019, 07:05:19 pm
content: Available from China:"The LTC1966 also has a rail-to-rail output with a separateoutput reference pin providing flexiblelevei shitting."A Brown Trouser Interface, outstanding idea.

author: daqq
author_rank: Super Contributor
timestamp: April 29, 2019, 07:45:01 pm
content: Yeah, these things happen. The Slovak term for a current source is "prúdový zdroj". The Slovak term for fart source is "prdový zdroj". Guess which one I accidentally used...
Louis Rossmann uses the EEVblog BM235 Multimeter  - Page 1
Forum section: electronics / general

author: Jon.C
author_rank: Unknown
timestamp: April 30, 2019, 03:18:56 am
content: Louis Rossmann uses the EEVblog BM235 Multimeter

author: German_EE
author_rank: Super Contributor
timestamp: April 30, 2019, 04:39:33 pm
content: Thereby showing that the good Mr Rossmann is a fine fellow with impeccable taste in test equipment. I still think he uses too much flux though.

author: windsmurf
author_rank: Frequent Contributor
timestamp: April 30, 2019, 05:50:51 pm
content: Quote from: Jon.C on April 30, 2019, 03:18:56 am...and a hammer, since that's all you need to fix anything.You can tell he's on a budget. Otherwise he would have used the top-of-the-line 121GW and a Snap-On hammer.

author: odessa
author_rank: Regular Contributor
timestamp: April 30, 2019, 06:17:10 pm
content: Love his videos

author: HwAoRrDk
author_rank: Super Contributor
timestamp: April 30, 2019, 06:44:00 pm
content: Quote from: windsmurf on April 30, 2019, 05:50:51 pmFor the low, low price of only $300, or only $5 a week with 104 easy weekly payments! See your local tool truck for details.

author: strangersound
author_rank: Regular Contributor
timestamp: April 30, 2019, 10:58:54 pm
content: YouTube has a knack for creating all kinds of cross pollination between channels and across subjects.Louis is a hoot. I don't watch all the board repairs, but when he starts ranting, I'm on it. He's funny.

author: extide
author_rank: Regular Contributor
timestamp: April 30, 2019, 11:00:56 pm
content: Yeah love to watch Louis.
Photonicinduction new videos!!! - Page 1
Forum section: electronics / general

author: Pluscrafter
author_rank: Regular Contributor
timestamp: April 28, 2019, 07:12:14 pm
content: On his latest videohe posted that he will produce new videos

author: shakalnokturn
author_rank: Super Contributor
timestamp: April 28, 2019, 09:39:50 pm
content: Glass is such a poor dielectric

author: Wilksey
author_rank: Super Contributor
timestamp: April 28, 2019, 10:02:01 pm
content: That video was posted 14th may 2017...

author: shakalnokturn
author_rank: Super Contributor
timestamp: April 28, 2019, 10:10:24 pm
content: Glass has improved since...

author: malagas_on_fire
author_rank: Frequent Contributor
timestamp: April 28, 2019, 10:43:51 pm
content: yep confirmed also:https://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/msg2366718/#msg2366718

author: Wilksey
author_rank: Super Contributor
timestamp: April 29, 2019, 09:30:16 am
content: Ah, after that idiot robbiemusic or whatever he's called tried to make people believe he had passed away I ignore the comments.

author: Pluscrafter
author_rank: Regular Contributor
timestamp: April 29, 2019, 10:47:20 am
content: You can check the comment, that this is the real Photonicinduction, by clicking on the channel name of the comment and checking the url, if it is the genuine Photonicinduction.
Old technology confuses current ad writers. - Page 1
Forum section: electronics / general

author: CatalinaWOW
author_rank: Super Contributor
timestamp: April 28, 2019, 03:22:05 am
content: The title line is amusing.https://www.alliedelec.com/product/idec-corporation/sr3p-51/70174842/There is probably a biology text describing a four legged biped.

author: newbrain
author_rank: Super Contributor
timestamp: April 28, 2019, 07:07:08 am
content: What would the problem be?11 pin octal socketshave been more or less a standard for relays (not for tubes) since long time ago.And yes, the name stayed when the extra 3 pins were added...

author: soldar
author_rank: Super Contributor
timestamp: April 28, 2019, 08:41:37 am
content: There was a jazz quartet in Virginia, the "Not So Modern Jazz Quartet". Eventually they added a new member/instrument so they were now five of them but they kept their name as "quartet" because that is how they were known.They were advertised as "the greatest quartet in the world".

author: donotdespisethesnake
author_rank: Super Contributor
timestamp: April 28, 2019, 09:06:26 am
content: "Old technology confuses pedants"

author: KerryW
author_rank: Regular Contributor
timestamp: April 28, 2019, 10:14:42 am
content: Mostly Harmless is a 1992 novel by Douglas Adams and the fifth book in the Hitchhiker's Guide to the Galaxy series. It is described on the cover of the first editions as "The fifth book in the increasingly inaccurately named Hitchhikers Trilogy".

author: tooki
author_rank: Super Contributor
timestamp: April 29, 2019, 07:49:53 am
content: Quote from: CatalinaWOW on April 28, 2019, 03:22:05 amI assume you’re talking about the “11 pin octal” part.Common names often begin as a technically precise term, and then change to encompass things that no longer fit the name. This is a great example. “RAM” is another. (Nearly all “memory” used today is random-access, yet we keep the term around to mean a specific thing.) Laser printer is another example — many “laser” printers today are actually LED line printers, but they’re commonly called “laser” anyway because the entire remainder of the xerographic process/print engine is identical.So... nothing to see here.
SpaceX to Launch Falcon Heavy Rocket - Page 1
Forum section: electronics / general

author: NivagSwerdna
author_rank: Super Contributor
timestamp: April 27, 2019, 08:00:39 pm
content: OMG... Stumbled across *A REPLAY* of the live launchThat was amazing... they managed not only to land the side boosters but also the core rocket onto their drone ship.

author: Domagoj T
author_rank: Frequent Contributor
timestamp: April 27, 2019, 08:03:43 pm
content: I have a link for you.https://spaceflightnow.com/launch-schedule/Now you don't have to leave it to chance that you'll stumble upon another launch.

author: wraper
author_rank: Unknown
timestamp: April 27, 2019, 08:10:46 pm
content: It's a fake livestream. It was launched 2 weeks ago.https://youtu.be/TXMGu2d8c8g

author: NivagSwerdna
author_rank: Super Contributor
timestamp: April 27, 2019, 08:14:53 pm
content: Ah!.. I did wonder.

author: basinstreetdesign
author_rank: Frequent Contributor
timestamp: April 28, 2019, 06:23:25 am
content: Quote from: NivagSwerdna on April 27, 2019, 08:00:39 pmI can't even imagine how many things would have to go right to make this happen. If I had worked on any part of that vehicle and its control systems then I would be going crazy too.

author: Domagoj T
author_rank: Frequent Contributor
timestamp: April 28, 2019, 08:48:45 am
content: Unfortunately, the core that landed on the barge ended up taking a swim anyway. The ocean was too rough and it toppled after the landing. I'm not sure how long after the landing, but it wasn't immediately. The system they have for securing the Falcon 9 cores wasn't suitable for Falcon Heavy since there is some additional hardware on the Heavy version that's in the way for the clamping mechanism, and the new design wasn't ready in time for the launch.They call the mechanism Octagrabber and it looks like a big Roomba.https://www.spacexfleet.com/octagrabber

author: Psi
author_rank: Super Contributor
timestamp: April 28, 2019, 11:39:12 am
content: :grinds teeth:, That "SPACE & UNIVERSE (Official)" youtube channel really gets under my skin.I dunno why the channel still exists.They should be kicked off Youtube and fined all the money they have taken in advertising revenue .Fake live streaming should not be tolerated.I've seen them blur our the onscreen date/time area in the nasa/spaceX live feeds
Sit/stand desk for soldering? - Page 1
Forum section: electronics / general

author: rthorntn
author_rank: Frequent Contributor
timestamp: April 27, 2019, 12:57:01 am
content: Hi All,Even with regular breaks my soldering posture gives me a bit of a sore back, is anyone soldering using a sit/stand desk, also more broadly speaking do lots of people solder standing up?Thanks.Richard

author: GreyWoolfe
author_rank: Unknown
timestamp: April 27, 2019, 02:03:28 am
content: My workbench is a bit on the tall side and my chair is a bit low so it seems to work out well for soldering. No aches or pains outside of the normal ones for this 62 YO abused body.

author: German_EE
author_rank: Super Contributor
timestamp: April 27, 2019, 09:04:16 am
content: GreyWoolfe knows the secret, you need to be a lot closer to your work (and use a fume extractor) so you don't hunch over. Jewelers and watch makers have it right, their benches are almost at chest height.

author: stj
author_rank: Super Contributor
timestamp: April 27, 2019, 09:42:34 am
content: forget concepts like desk & chair - get comfortable in whatever way works for you.i spent years soldering laying on the floor back when i repaired juke-boxes - that sounds bad but was surprisingly comfortable.it was a lot faster than ripping the loom out of a machine just to take it to a desk.

author: nctnico
author_rank: Super Contributor
timestamp: April 27, 2019, 10:32:04 am
content: Quote from: GreyWoolfe on April 27, 2019, 02:03:28 amI have a desk at the normal height but I lower my chair a bit when soldering so I can keep my back straight.

author: lordium
author_rank: Regular Contributor
timestamp: April 27, 2019, 11:03:58 am
content: I have a small stool (no back) that goes up and down (and round and round). Works great for me. Only times I get tired is when I forget to lower the stool for extended periods(hunched over position is bad)

author: Rerouter
author_rank: Super Contributor
timestamp: April 27, 2019, 11:32:11 am
content: I sit while soldering, but I have an adjustable height seat, and a good desk height,If its bothering you, electrically adjustable height desks can be had for about $300, so you can adjust for sitting or standing.

author: tooki
author_rank: Super Contributor
timestamp: April 27, 2019, 11:15:40 pm
content: I have an adjustable desk. I’m short, so I use it at 67cm seated for computer, 100cm standing for computer, and about 120cm standing for soldering.

author: coppercone2
author_rank: Super Contributor
timestamp: April 28, 2019, 04:21:13 am
content: i had this problem until I started doing heavy back squats once in a while to build muscle back there. now I cam work in uncomfortable positions on stools for a while and be OK (but not great)
Petrol/Diesel generator waveforms - Page 1
Forum section: electronics / general

author: .RC.
author_rank: Frequent Contributor
timestamp: April 27, 2019, 07:44:31 am
content: I was interested in looking at the waveforms my generators make compared to mains so I bought one of those cheaper DSO oscilloscopes. Yes I know they are not amazing wonderful machines, but even the more basic ones are better then none.Generator is a US made 60Hz welder/generator unit from the Miller brand. Dates back a dozen years or so. Capacitor regulated.Have attached an image of the waveform under no load. This cheap scope does not show the bottom waveform correctly.I have also attached an image of the waveform when a cheap inverter welder is connected and working.

author: .RC.
author_rank: Frequent Contributor
timestamp: April 27, 2019, 07:52:43 am
content: I decided to compare waveforms between two different plasma cutters.First image is a cheap Cut40 machine. Similar result to the cheap inverter welderSecond image is a UniMig Razorcut45 plasme cutter which the brochure says has power factor correction.Third image is the same generator running a 2200W kettleForgot to mention the generator has a 6kVa at 1 power factor.

author: .RC.
author_rank: Frequent Contributor
timestamp: April 27, 2019, 11:03:58 pm
content: Another test with a much larger (11kVa) AVR generator.First photo shows the cheap cut40 plasma cutter. Still have a similar style of waveform. Does anyone know if this means it is a switching power supply with very poor power factor. The current is only being drawn at specific times in the cycle leading to the levelling off of the wave form peaks?Second photo shows a Razorcut 45 plasma.Third photo is a transformer type 250 amp MIG welder at full power.
How are modern sensitive cameras compared to IIT based night vision? - Page 1
Forum section: electronics / general

author: yucel
author_rank: Newbie
timestamp: April 27, 2019, 02:36:05 pm
content: With today's cameras getting a ISO like Nikon d7500's 1638400 ISO, I'm curious how would they compare to a military intensifier tube based night vision device.Are there any data about the approximate ISO of a Generation 2 or 3 IIT night vision device?
OT: toy manufacturer logo - Page 1
Forum section: electronics / general

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: April 29, 2019, 02:29:58 am
content: It's for a little plastic tiger figurine about 4cm long. I don't know where it came from and I want to buy more.Anyone recognize the logo?

author: Ampera
author_rank: Super Contributor
timestamp: April 29, 2019, 09:01:25 am
content: Now this might be a stupid question, but why are you asking this on an EE forum and not something related to toys?Just a thought.

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: April 29, 2019, 12:06:11 pm
content: because I have no kids and wouldn't know where to startbut I figure some of you must have kids...The google pic search didn't turn up anything either

author: Cloud
author_rank: Regular Contributor
timestamp: April 29, 2019, 02:41:34 pm
content: I think that toys in kinder surprise have logo that looks similar

author: exe
author_rank: Unknown
timestamp: April 29, 2019, 03:13:42 pm
content: Just 3d-scan it, then print it on a 3d printer... Or find something similar:https://www.thingiverse.com/tag:tiger

author: Kalvin
author_rank: Super Contributor
timestamp: April 29, 2019, 03:45:29 pm
content: Cloud nailed it:https://colnect.com/en/kids_meal_toys/kids_meal_toy/19447-Tiger-Kinder_-_Natoons_-_Jumping_animals-Kinder_Surprise

author: Domagoj T
author_rank: Frequent Contributor
timestamp: April 29, 2019, 04:34:56 pm
content: I'm always amazed by the problems people on internet can solve. I tried reverse image search of the logo and some logo ID services with no luck, but apparently there is always someody with the right answer.

author: German_EE
author_rank: Super Contributor
timestamp: April 29, 2019, 06:29:29 pm
content: Some of us are a mine of useless information, and I count myself amongst the ranks. Remember those West Indian steel bands that play on beaten out oil drums? I managed to find one after a friend proposed marriage on a Caribbean vacation and he wanted one of the bands at his wedding.

author: soldar
author_rank: Super Contributor
timestamp: April 29, 2019, 08:31:05 pm
content: I sometimes enjoy spending some time on this type of challenge and I have to confess I did spend some time on this one but with no luck this time. Other times I do get lucky and it is a satisfaction.

author: apis
author_rank: Super Contributor
timestamp: April 30, 2019, 12:17:28 am
content: Quote from: German_EE on April 29, 2019, 06:29:29 pmThose steel pans are cool. It's amazing how trash like old rusty oil-drums can be transformed into a beautiful sounding instrument through some ingenuity and skilled work.

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: April 30, 2019, 10:21:34 am
content: Thanks! It's obvious now...
Cheap 40m laser rangefinder working principle - Page 1
Forum section: electronics / general

author: Axk
author_rank: Regular Contributor
timestamp: April 24, 2019, 03:20:37 pm
content: How does a rangefinder like this work?https://www.aliexpress.com/item/S7-Mileseey-s7-laser-distance-meter-40m-60m-80m-100m-Mini-Handheld-optical-laser-Rangefinder-binoculars/32859078717.html?spm=a2g0v.10010108.1000001.11.5d974ed2JxQNOCIs it just time of flight?Multiple frequency phase-shift?What frequencies are we talking about roughly?

author: Axk
author_rank: Regular Contributor
timestamp: April 24, 2019, 11:06:48 pm
content: Found a good reverse-engineering article (in Russian):https://habr.com/ru/post/327642/

author: German_EE
author_rank: Super Contributor
timestamp: April 27, 2019, 09:22:12 am
content: For those of you who cannot read Russian:The range finder contains two VHF oscillators separated by a few KHz. The first oscillator modulates the laser beam before it is transmitted and the second oscillator is mixed with the incoming signal. The difference between the received signal modulation frequency and the reference will not vary (unless either the instrument or the target is moving) but there will be a phase difference between the two. The phase difference varies according to distance, this is measured and converted into feet/meters/yards by the CPU before feeding the number to the display.
Harbin Ice building LED lighted festival! - Page 1
Forum section: electronics / general

author: MT
author_rank: Super Contributor
timestamp: April 26, 2019, 02:39:43 am
content: Ice festival in Harbin Manchuria, quite spectacular full size multi level buildings with LED displays inside Ice as screens.

author: Zero999
author_rank: Super Contributor
timestamp: April 26, 2019, 10:41:00 am
content: It's a bit late now. It will have melted.I wonder if they're any permanent ice buildings, at very high latitudes/elevations?

author: soldar
author_rank: Super Contributor
timestamp: April 26, 2019, 06:30:19 pm
content: Officially only lasts one month:https://en.wikipedia.org/wiki/Harbin_International_Ice_and_Snow_Sculpture_Festival

author: gamalot
author_rank: Super Contributor
timestamp: April 26, 2019, 06:34:23 pm
content: Quote from: Zero999 on April 26, 2019, 10:41:00 amUnfortunately, Harbin is not as cold as you think.

author: Zero999
author_rank: Super Contributor
timestamp: April 26, 2019, 08:23:39 pm
content: Quote from: gamalot on April 26, 2019, 06:34:23 pmI know, it's only cold in winter. Summers are quite hot, similar to Sydney, but with hotter days and cooler nights.https://en.wikipedia.org/wiki/Harbin#Climatehttps://en.wikipedia.org/wiki/Sydney#ClimateI was wondering if there's a permanent ice hotel somewhere where it doesn't get above freezing, even in summer. I suppose most places with icecap climates are too remote to make it practical.

author: MT
author_rank: Super Contributor
timestamp: April 26, 2019, 09:20:04 pm
content: https://www.icehotel.com/https://www.icehotel.com/ice-galleries/3-interesting-reasons-why-you-should-host-a-meeting-at-icehotel-in-the-summer/
brain implants that read your mind - Page 1
Forum section: electronics / general

author: coppercone2
author_rank: Super Contributor
timestamp: April 25, 2019, 04:22:13 am
content: not quite a spy bug yet but look at this: creepy (but helpful)https://www.bbc.com/news/health-48037592

author: harnon
author_rank: Regular Contributor
timestamp: April 25, 2019, 10:04:02 am
content: Saw this in the paper this morning, pretty cool. They had quotes from the Stendrode people at the University of Melbourne so at first read I thought they'd done the researchGot to love the way the write up jazzes things all out of proportion - can they read your mind with a few electrodes?Um, no.

author: coppercone2
author_rank: Super Contributor
timestamp: April 26, 2019, 01:51:52 am
content: yea i think its a good avenue of research to pursue because losing communication abilities is pretty scary.
[Solved - network error on my side, not deleted] Why my post was deleted? - Page 1
Forum section: electronics / general

author: RoGeorge
author_rank: Super Contributor
timestamp: April 26, 2019, 04:39:14 pm
content: At this point I am not sure if my previous post was deleted, or it was just a network malfunction so it was never published in the first place. (I am talking about a reply inhttps://www.eevblog.com/forum/suggestions/top-10-uses-for-function-generators/)I don't mind something being deleted, yet I would like to know at least a word for why it was deleted. Would like to know why not for contesting the deletion decision, but to understand what was wrong and avoid doing that for the future.The question is, was my previous message deleted? If yes, what did I do wrong?Again, not angry about it, just curious.

author: soldar
author_rank: Super Contributor
timestamp: April 26, 2019, 06:17:49 pm
content: you meanhttps://www.eevblog.com/forum/suggestions/top-10-uses-for-function-generators/msg2369958/#msg2369958?

author: RoGeorge
author_rank: Super Contributor
timestamp: April 27, 2019, 01:44:31 am
content: After the one you linked, there was another one. Let's forget about it. Most probably the second reply never get to the thread in the first place (network problems on my side).

author: EEVblog
author_rank: Unknown
timestamp: April 27, 2019, 03:24:46 am
content: I don't see any of your posts as being deleted

author: Zero999
author_rank: Super Contributor
timestamp: April 27, 2019, 07:12:22 am
content: I think the moderators deserve an apology.
Does anyone have a list of authorized sellers for the Quick brand? - Page 1
Forum section: electronics / general

author: Ride the Lightning
author_rank: Newbie
timestamp: April 08, 2019, 05:32:02 pm
content: Hello all. First post. I always liked the YouTube videos and never knew there was a forum. I tried to contact Quick Global but never got a reply about a list of authorized sellers. Also, using the search tool here gets problematic with a common word like Quick. With all the secondary marketing and grey market products it can be hard to search for a deal. I hear good things about one seller but they happen to not be on the Quick USA website. Since it's my first post I figure I should share a little about myself. I chose my user name because I have a fully electric vehicle. EV are great fun to drive and efficient. It would be nice to see more on the road. Oil is valuable resource which largely gets converted to heat in a car. Kind of need two cars, one being a convential gas, and a garage to not give up anything. But, if you like technology there worth a look.

author: ElectronicSupersonic
author_rank: Regular Contributor
timestamp: April 08, 2019, 05:39:45 pm
content: This guy (see link below) for instance sell Quick hot air stations. Don't know if they have any official reps.https://www.youtube.com/user/rossmanngroup/videos(links are under any of his videos)

author: Ride the Lightning
author_rank: Newbie
timestamp: April 08, 2019, 11:28:50 pm
content: Thanks for the link. I have read at least one post talking about fake 861DW rework stations. Any insight on the numbers of these units that are out there? Is it more about warranty claims being honored than a 4 cylinder engine in a Corvette body? The 861D+ 110v "1000 watt" unit that bends the laws a physics with a 8 amp fuse comes to mind.

author: edavid
author_rank: Super Contributor
timestamp: April 25, 2019, 04:10:40 am
content: There's a list of distributors on their website:http://www.quick-usa.com/index.php?route=information/information&information_id=9However, it's not complete or accurate.Tequipment is definitely a distributor, and will give you the EEVblog 6% discount.
Old TV Tubes, & Electric Motors ! - Page 1
Forum section: electronics / general

author: GlennSprigg
author_rank: Super Contributor
timestamp: April 23, 2019, 11:13:55 am
content: Killing two birds with one stone here...Recently, someone posted about rejuvenating old TV CRT Tubes. It got me 'rememberin!!!'Would be interesting if anyone can back this up ??MANY years ago, an old Tech boss told me about his time as a production line manager, fora company, (not sure which one!), making some of the original B&W commercial TV's....They started having reported back 'failures', that soon seemed to based on a 'time' factor.These 'failures' were all to do with theHV coilsfor the tubes, breaking down !Back then, there was a production line of Women, (the norm), and they used bare hands.They finally traced the problem date-wise to a Woman, (Women?), who hand wound the coils,and on those 'production' dates, they were on theirmonthly period!! (Privately questioned).According to them, at that time, their slightly moist 'skin' (fingers) are more Acidic then, andwas the cause of the insulation breakdown of the windings !!Anyway... Surgical gloves later, the problem went awayI wonder how many, (if any!), general Electricians these days know anything about re-windingelectric motors now, from their original apprenticeship, onwardsI know of course that thereare many types of 'Electricians', from basic electrical, to Electrical 'Fitters' (more mechanical), etc.However, I was taught how to re-wind EVERYTHING haha... Armatures, 1 & 3 ph stators...I KNOW it's a 'throw-away' World now, but when you are working in remote locations like Ioften was, you have to 'Fix' it ! And back in production so many hours later !!A general Plumber/Carpenter has to know almost everything, (if old enough) & good on them!However I'm SURE that the average 'House-Wirer' here, would know 'nothing' about even basicindustrial control circuits/systems. We need to keep the 'old' knowledge going !

author: Zero999
author_rank: Super Contributor
timestamp: April 23, 2019, 12:41:25 pm
content: 1) It's plausible I suppose, but I would have expected the coils to be machine wound, even back then.2) Larger motors are still re-wound because it's still cheaper, than buying a new one.

author: chris_leyson
author_rank: Super Contributor
timestamp: April 23, 2019, 01:43:08 pm
content: 1) A footnote from Ralph B. Balwin's book "The Deadly Fue""One set of fuzes which performed very poorly was tracked down by interchanging fuzes and batteries. The trouble was in the battery. The faulty batteries were then traced to one production line. It was found that intervals of about one month, the batteries produced became defective. The cause was a woman on the assembly line whose fingers beacame very acid at the time of her period."
GoPro Louis Rossmann - Page 1
Forum section: electronics / general

author: abraxa
author_rank: Frequent Contributor
timestamp: April 19, 2019, 11:32:45 am
content: I can only imagine that the internal microphone was intentionally crippled so that people would be willing to buy the dongle.

author: Brumby
author_rank: Unknown
timestamp: April 19, 2019, 03:58:29 pm
content: Quote from: abraxa on April 19, 2019, 11:32:45 amFTFY

author: electromotive
author_rank: Regular Contributor
timestamp: April 22, 2019, 04:06:23 am
content: Even the stop/start record wrist strap for the Hero 3+ sucked on pairing.
How to sell my product worldwide? - Page 1
Forum section: electronics / general

author: TheSergiooo
author_rank: Newbie
timestamp: April 25, 2019, 01:28:57 pm
content: Hello. I am making and selling simple electronic circuits in Russia. I've been thinking about starting worldwide sales. Is there someone experienced with that? I mean, i could just sell it online and put it in a bag, then send to a customer, but hey, there is a lead/EMI/RF stuff (no one cares about that in Russia). What if i'll sell my Arduino-like board the wrong way and then FBI will come to get meYet, Aliexpress manages to sell all kinds of dangerous stuff (bare mains heaters, high voltage or just dubious power supplies)

author: BravoV
author_rank: Super Contributor
timestamp: April 25, 2019, 01:54:18 pm
content: Quote from: TheSergiooo on April 25, 2019, 01:28:57 pmFrom your flag, you're Russian, and I assume living in Russia, why the heck you are afraid of FBI ?

author: TheSergiooo
author_rank: Newbie
timestamp: April 25, 2019, 02:19:40 pm
content: Quote from: BravoV on April 25, 2019, 01:54:18 pmYes, i do.Quote from: BravoV on April 25, 2019, 01:54:18 pmAccidentally sold nuclear powered Arduino?Jokes aside, getting packages send back or obliterated on customs would be really badI just don't know anything about international sales/shipment/payments and wanted to double check everything. Going lead-free anyway, just in case. But there are still a bluetooth module on a board, so i am a little bit nervous

author: ataradov
author_rank: Super Contributor
timestamp: April 25, 2019, 05:27:56 pm
content: Just send your stuff as usual, I don't think you will have any problems. You will probably have to fill out CN-22 form.The biggest problem with shipping internationally on small scale is that the prices are very high, and may not make economical sense.
Pixy Dust ? Screen Pixels ??  Arghhh... - Page 1
Forum section: electronics / general

author: GlennSprigg
author_rank: Super Contributor
timestamp: April 19, 2019, 11:46:25 am
content: I'm totally 'O.C.D.' when it comes to a 'speck' of dust or what ever, on my Screen(s) !!!!Mainly because I work with often 'very' detailed & accurate graphics/design. I can't tellyou how many times I have tried to edit out / clone / repaint a specific SPOT on my screensthat I 'think' is within the 'graphics', but is just a minute speck of SHIT on my screen !!Mind you, with ALL the Laptops I've ever played with, (and being so 'fussy' this way), I've NEVERyet seen one that has the ubiquitous 'failed' pixel in the 'screen' itself ? That would drive me NUTS !!I guess I've just been lucky...Years ago... my less-informed brother, said hehasn't seen that either!!!... sigh... although thescreens he was using then were the oldCRT monitors.......... I gave up explaining !My 'SmartPhone' screen is equally always Spotless !! As I can rub/clean it all I want without any fear of'scratches', since it has a $50 coating/layer that makes 'Gorilla-Glass' look like tacky jelly !!!My missus's phone screen looks like a used dinner-plate before it is washed !!!! sigh....
1976/8 modem - Page 1
Forum section: electronics / general

author: stefanos
author_rank: Newbie
timestamp: April 18, 2019, 09:05:54 am
content: Hi I would like your ideas on this issue I have.I bought an old house and while cleaning it out I found what I thought was a strange amplifier/equalizer and at the time I thought it would be interesting to look inside at some point in the future so I kept it.I just got round to take a look at it. It has seven, 3 way switches, 12 leds and what looks like a 4 pin big round mic jacks. The labels on the leds are Rx, Tx, CD, BCD, DSR, OH, RI, AA, Eq, Fault, Test and power. I thought modems of the day had acoustic couplers but this was wired via the mic jack and that is why I probably made the mistake.I searched the internet and found only 1 picture in a university museum and the caption it says … this can be considered the first networked computer (in this country). It then goes onto give details of the modem and says it was connected to an identical modem at a different Uni. The date code on the chips inside confirm the dates given by the Uni.My basic question is what does everyone think I should I do..The considerations are,A country in the EUs first networked computer (internet only arrived in the early 90s)Do I contact the museum.Any suggestion welcome.Sorry to be a bit vague, but don't worry I will post pictures of it once I decide what I should do.Thankss

author: sleemanj
author_rank: Super Contributor
timestamp: April 18, 2019, 10:01:20 am
content: Absent any provenance it's only curiosity value. See if the centre for computing history wants it.http://www.computinghistory.org.uk/
Australians who shop at Jaycar - Page 1
Forum section: electronics / general

author: @rt
author_rank: Super Contributor
timestamp: April 16, 2019, 07:29:39 am
content: Next time you’r there, take a look a the $19.95 Crystal Radio kit.Check the kit has Shottky diode type ST60P, or the Germanium diode type.The kit isn’t a radio when it’s assembled with the ST60P type.I message them on Facebook, and told them I’d be satisfied when it’s removed from the shelf in it’s current state.It’s going to be the first kit a kid builds, and doesn’t work.In fact in FB Amateur radio group, that has already happened, and probably countless times.If you look at the kit on their site, their image of it does show a germanium diode.

author: @rt
author_rank: Super Contributor
timestamp: April 16, 2019, 03:56:19 pm
content: Original kit had the luxury of not being on the ground.Replaced with my own stuff, got ABC MW broadcast, and Amberley approach beacon on 359 kHz (original intent).https://youtu.be/raBOPMzNLFMReplaced my own germanium diode with the supplied shotky type after this, and it’s broken.
Interesting prizewinner at the Sydney Royal Easter Show - Page 1
Forum section: electronics / general

author: Brumby
author_rank: Unknown
timestamp: April 16, 2019, 05:31:18 am
content: I wonder what design rules were used?

author: EEVblog
author_rank: Unknown
timestamp: April 16, 2019, 05:55:14 am
content: I posted a photo of an art entry last year, it was a sculpture made from various electronics parts

author: aargee
author_rank: Frequent Contributor
timestamp: April 16, 2019, 07:51:41 am
content: I wonder if they used Altium or KiCad?

author: wasyoungonce
author_rank: Frequent Contributor
timestamp: April 16, 2019, 09:03:34 am
content: No "CE" sticker
The Craft of Picture Tube Rebuilding - Page 1
Forum section: electronics / general

author: albert22
author_rank: Regular Contributor
timestamp: July 06, 2017, 02:37:55 pm
content: This was the last crt rebuilding facility in the united states. A very long and slow video but it may interest some old guys that like me.At 1:46:40 starts the restoration of a rare 19vp22 tube (kind of summary of the previous 100minutes).A project to keep the craft alive here>www.earlytelevision.org

author: GreyWoolfe
author_rank: Unknown
timestamp: July 07, 2017, 01:33:03 am
content: Guess I am an old guy, too. I watched the whole thing.

author: Gyro
author_rank: Super Contributor
timestamp: July 07, 2017, 10:48:25 am
content: Me too. Long and a little slow, sure, but compulsive viewing.It had an interesting 'village blacksmith meets high-tech' feeling... The washing out of the old getter flash with a wet 'mop' over the sink, the hand tweaking of the electron guns and spot welding the getters with bare hands. At the same time the skill in extending the neck tube in the horizontal lathe and sealing in the guns, very skillful.I was impressed by the apparently fearless handling of the tubes too, the releasing of the vacuum using the tungsten 'drill' melting through the glass, that would scare me to death! I guess that comes from long experience.It's a shame he doesn't do scope CRTs too, I have one that just needs a little spot weld repair on the grid.

author: albert22
author_rank: Regular Contributor
timestamp: July 07, 2017, 02:26:30 pm
content: Glad you like it.QuoteFrightening moment when the 19vp22 tube started to did cracking sounds. I would run the hell out of there.I was also surprised by the tolerance in the position and rotation of the electron gun, especially in color crts.regards

author: AF6LJ
author_rank: Unknown
timestamp: July 07, 2017, 03:24:39 pm
content: That was good Thanks.

author: helius
author_rank: Super Contributor
timestamp: April 16, 2019, 06:53:54 am
content: Another (long and slow) video from the last commercial CRT rebuilders in the world, RACS in France.The shop in the OP, Hawkeye, closed in 2010. RACS closed in 2013.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: April 16, 2019, 08:52:32 am
content: Coincidence of coincidences, that's my brother Nick. He's done a lot for, and with, the Early Television Museum.He brought back a lot of the French tooling and ET is learning/using it.Tim
Stratolaunch flew and landed! - Page 1
Forum section: electronics / general

author: bsudbrink
author_rank: Frequent Contributor
timestamp: April 15, 2019, 04:51:20 pm
content: I will never understand why they did not join the elevators.

author: Smokey
author_rank: Super Contributor
timestamp: April 15, 2019, 10:31:32 pm
content: Quote from: bsudbrink on April 15, 2019, 04:51:20 pmextra weight?

author: bsudbrink
author_rank: Frequent Contributor
timestamp: April 15, 2019, 10:46:31 pm
content: Quote from: Smokey on April 15, 2019, 10:31:32 pmHow much extra weight is required to strengthen the wing section between the two fuselages? And the length of the fuselages for that matter. I would think the coordination between the rudders and elevators must be incredibly critical or the bird would just twist itself apart.

author: Nusa
author_rank: Super Contributor
timestamp: April 15, 2019, 10:59:14 pm
content: Quote from: bsudbrink on April 15, 2019, 04:51:20 pmRemember the primary use of the Stratolaunch is as first-stage carrier for other vehicles, which may have vertical rudders of their own. Having open air behind that rudder is highly desirable and was likely a design goal from the beginning.

author: Brumby
author_rank: Unknown
timestamp: April 16, 2019, 12:08:51 am
content: Quote from: Nusa on April 15, 2019, 10:59:14 pmThat was my first reaction, too.

author: sleemanj
author_rank: Super Contributor
timestamp: April 16, 2019, 12:19:35 am
content: It's kinda interesting that both fuselages are the same with external cockpit windows etc, but only one of them is used, the other is empty apart from equipment (and unpressurised). I guess it was either easier to just copy-paste-mirror the design :-)
WOW - GUI Circuit Simulation in 1968 - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: April 13, 2019, 08:48:52 am
content: WOW!GUI circuit simulation and filter response plotting in 1968!The Incredible Machine

author: Zbig
author_rank: Frequent Contributor
timestamp: April 13, 2019, 10:37:56 am
content: Fascinating! And it even features the original computer-synthesized performance of "Daisy Bell" - the "dying HAL 9000 song" that apparently was the Stanley Kubrick's original inspiration:https://www.syfy.com/syfywire/little__known_sci_fi_factQuote

author: wilfred
author_rank: Super Contributor
timestamp: April 13, 2019, 10:53:07 am
content: Tell me it's not a coincidence that 2001 ASO was on TV today.

author: nardev
author_rank: Unknown
timestamp: April 15, 2019, 08:29:22 pm
content: WOW WOW WOWNot the first time that i realize how much all this tech around us is just "improvements" of old ideas but this one was really amazing : )

author: rstofer
author_rank: Super Contributor
timestamp: April 15, 2019, 10:25:03 pm
content: The IBM 2250 Graphics Display Unit was released in 1964. It could be used on a System 360 or even on the MUCH smaller IBM1130, released in 1965.http://ibm1130.org/hw/2250/https://en.wikipedia.org/wiki/IBM_2250We had one (or more) where I worked and it was used for aircraft design. I spent a LOT of time with the IBM1130 beginning in '70 but the machines I used didn't have the Display Unit.What the machines did have was a IBM 1627 Plotter and The IBM Electronic Circuit Analysis Program - a precursor to today's spice programs. Very handy when studying active circuits or even just making Bode' Plots for filters.https://www.ithistory.org/db/hardware/ibm/ibm-1627-plotterHere's a decent photo of a complete machine with the plotter:https://en.wikipedia.org/wiki/IBM_1130<=== a REALLY GOOD description of the machine and its internalsSo I built the machine using an FPGA and it runs all of the IBM software unchanged. For a plotter, I send the output to a LaserJet. Works well...It would be kind of fun to implement the Graphics Display Unit using some kind of touch screen technology, convert it to whatever the IBM1130 wants to see and use it as an IO device but it also seems like a lot of work.

author: schmitt trigger
author_rank: Super Contributor
timestamp: April 15, 2019, 11:21:36 pm
content: I also used ECAP circa 1978.Anyone who complains about how difficult Ltspice is, should have to complete an ECAP analysis, with punch cards and fanfold paper for I/O.
Has anyone tried the Mouser "Library Loader" for part models? - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: April 16, 2019, 07:11:17 am
content: Has anyone tried the Mouser "Library Loader" for part models?https://www.mouser.com/electronic-cad-symbols-models/It just looks a bit dodgy, asking to rename ex_ to exe in downloadSo i thought id ask if anyone else is using it and if it's worth installing.I'm using Altium Designer 15