hybridfree/eevblog-posts huggingface dataset:
YouTube Ghost Banning - Page 1
Forum section: electronics / general

author: cimmo
author_rank: Frequent Contributor
timestamp: September 02, 2014, 01:36:10 am
content: For several months now I have been victim of the overzealous anti-spam filter youtube algorithm.For those unaware of this issue, this is a concise description:"Often referred to as a smarter way to deal with malicious or mischievous people, ghost banning in many forms will still allow affected users to post and otherwise interact with the website or profile in question – with the caveat being that their published content does not actually show up for other users to see. "FWIW, this was from a marketing website discussing how to get around the 'problem'.I have verified that about 1/3rd of my posts are affected. I have done this by viewing the same YT videos and threads on another browser - one not logged in, so I see it as anonymous. On this other browser, some of my comments are missing, even if it was a directed reply to someone who has previously directed a comment to me.Now, since YT's filter is so paranoid that even single word replies "Nope." get ghost banned and I have made numerous complaints to their so called forum and feedback process with no resolution whatsoever, I have decided that if I get no benefit from these features (discussion fora), then they will get no benefit from me viewing the content - I have now installed AdBlockPlus and I see NO advertisements whatsoever from YT/Google.Sorry Dave, as content producer this possibly affects you too.Perhaps if YT/Google was more responsive to complaints (from you too, perhaps) or if there was a viable alternative to that monopoly, this problem would have been resolved.Anyone else suspect that you've been Ghost Banned?Make a comment somewhere and get ignored?

author: Whales
author_rank: Super Contributor
timestamp: September 02, 2014, 01:54:22 am
content: I sense that Google has no reason to care because they won't see a link between an unhappy user and their bottom line. "Don't be evil" went out the window years ago.I've never commented on Youtube, but I can imagine how you would feel. Frustrated and betrayed because your conversations and efforts, no matter how small or large, have been arbitrarily ignored without you knowing. What if the same started happening on other web platforms?There are many ways this process can be expanded on and exploited. The ability to 'down' and 'upvote' posts on many sites can be abused enough already, especially when a topic is politics, but the contents of these posts are not completely censored from existence. This much control should not be exercised so secretly -- the actions of moderation (whether human or robotic) speak the intentions of the community and website. If these actions are hidden, people are being mislead about the environment they think they are in. How does a user learn they are behaving incorrectly if no one tells them?(insert a picture of an op-amp T-shirt without a feedback loop)
Force measurement - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: September 01, 2014, 07:08:29 pm
content: Is there any way how to measure force of a piston? In my project I have a spring driven piston and would like to calibrate the force of that piston.Force should be in ranges from 100 - 2500 Newton.Any idea would be appreciated.Thanks

author: PChi
author_rank: Frequent Contributor
timestamp: September 01, 2014, 07:25:14 pm
content: It's a long time since I was involved in mechanical testing but one way is to use a proof ring with strain gauges. Difficult to make and calibrate though.

author: N2IXK
author_rank: Frequent Contributor
timestamp: September 01, 2014, 07:25:34 pm
content: Do you need to measure compression, tension, or both? How accurately?One way is to install a force transducer or "load cell" on the piston shaft. These are available as packaged units to measure forces from milligrams to tons. Usually utilize resistive strain gages that require signal conditioning (also available as off the shelf modules, or can be built easily enough).A "proving ring" transducer is a laboratory grade device used with tensile testing machines, etc. The ones I am familiar with use LVDT transducers, not strain gages.

author: IanB
author_rank: Super Contributor
timestamp: September 01, 2014, 07:44:45 pm
content: Quote from: Jane on September 01, 2014, 07:08:29 pmMore information would help. Do you want to measure or adjust? Do you have an existing system or do you want to design a system? How big is the piston? Is it stationary or does it move? Is it OK to have a one time measurement external to the apparatus, or do you want a permanent measurement instrument installed in situ within the apparatus? Does the measurement have to be electronic or can it be mechanical?
Great Android apps for electronics - Page 1
Forum section: electronics / general

author: VK3DRB
author_rank: Super Contributor
timestamp: August 29, 2014, 01:03:53 pm
content: Hi.I have a superb application for my Samsung S3... RealCalc. I bought the full version which has some nice extra features, but more importantly it rewards the developers for making a great app. It is ideal for embedded programming and circuit design.Here is a list of my must haves...RealCalcASCII (A simple but effective ASCII table)ElectrodroidOpamp CalculatorWifi Analyser (Really useful to find conflicting Wifi channels from neighbours)Flashlight (Helps light up PCB top overlays in dark places)Are there any other really useful apps out there for electronics engineers, technicians, enthusiasts and fanatics?What app would YOU never do without?

author: macboy
author_rank: Super Contributor
timestamp: August 29, 2014, 05:55:00 pm
content: Droid48, an HP48 series emulator. RPN!Here's a tip: To get a super-macro closeup of something with a smartphone camera that can't focus closely, carefully place a small drop of water onto the lens. Surface tension keeps the water lens in place and perfectly domed. This will allow focus down to a few mm, giving you a cheap virtual microscope. Try it! As a bonus, this app is available for Andriod, iOS or any other POS with a puny little lens.

author: VK3DRB
author_rank: Super Contributor
timestamp: August 29, 2014, 11:19:09 pm
content: The RealCalc upgrade has RPN mode... and you can set which registers to display.
Have you ever designed something ridiculous like this? - Page 1
Forum section: electronics / general

author: wraper
author_rank: Unknown
timestamp: August 28, 2014, 12:33:00 am
content: Well, I watched yet another crazy video from Japan. This time about a device with a very useful function. So I thought what the engineers were thinking while designing this stuff and got their brilliant ideas how to achieve such a goal?

author: wagon
author_rank: Frequent Contributor
timestamp: August 28, 2014, 12:10:03 pm
content: I'm not seeing a problem.Lookup 'The Weatherwoman' movie from Japan.

author: amyk
author_rank: Super Contributor
timestamp: August 28, 2014, 02:06:09 pm
content: Typical Japan... but it's a pretty amusing way to get people to aim correctly.

author: German_EE
author_rank: Super Contributor
timestamp: August 28, 2014, 02:24:56 pm
content: Here is how they present the weather in Hungary. It's one of the few things I miss about the country:Link is safe for work, just

author: wraper
author_rank: Unknown
timestamp: August 28, 2014, 03:41:25 pm
content: Quote from: amyk on August 28, 2014, 02:06:09 pmThis one seems to be about the quantity, not precision

author: zapta
author_rank: Super Contributor
timestamp: August 30, 2014, 11:03:02 am
content: It's another solution to improve aiming to keep the floor dry, not the first and probably not the last. ;-)http://www.urinalfly.com/What's new in this engineering solution is that the user actually looks up at the screen which can have negative impact the aiming. On the other hand it provides much stronger incentive.

author: Gribo
author_rank: Frequent Contributor
timestamp: August 30, 2014, 11:21:10 am
content: I can see people going with empty bottles into such urinals..

author: wraper
author_rank: Unknown
timestamp: August 30, 2014, 11:28:41 am
content: This one definitely is not about the accuracy.
A picture of Schrödingers cat - Page 1
Forum section: electronics / general

author: PA0PBZ
author_rank: Super Contributor
timestamp: August 28, 2014, 11:23:11 am
content: This is an interesting read:http://www.nature.com/news/entangled-photons-make-a-picture-from-a-paradox-1.15781

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 28, 2014, 12:13:19 pm
content: It's the same old "oh look we split light into two and made it interfere again" experiment. Booooring. There's nothing mysterious about entanglement, and light is still interacting with the cutout in a one-to-one correspondence with the light forming the image. That purported physicists are still dicking around with this after a century...Tim

author: G7PSK
author_rank: Super Contributor
timestamp: August 29, 2014, 07:49:23 am
content: Its slightly more than old fashioned interference. There was another post about this by Sgt Rock yesterday.https://www.eevblog.com/forum/chat/interesting-quantum-development!/
Does exist such device? - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: August 27, 2014, 06:59:50 pm
content: Is there a device available that can mix two pictures( from two cameras) into one ( LCD )screen?I am not talking about the divided screen into several regions and in each there is a picture from each camera.I am talking about the device that can allow to see the pictures simultaneously

author: Flump
author_rank: Frequent Contributor
timestamp: August 27, 2014, 07:39:06 pm
content: yes there is a screen that shows two different sources depending on the viewing angle

author: andtfoot
author_rank: Unknown
timestamp: August 27, 2014, 08:19:45 pm
content: There are video mixers which are used for TV production and whatnot. Roland and Sony are a couple of big players I can think of there.They are commercial quipment though, so pretty expensive...http://en.wikipedia.org/wiki/Vision_mixerhttp://www.roland.com/professional/products_video.html

author: tszaboo
author_rank: Super Contributor
timestamp: August 27, 2014, 10:56:44 pm
content: Just put the two LCD (not the backlight) on top of each other.Or make it analog and add it together.

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 28, 2014, 05:04:36 am
content: Use a FPGA as a video processor. For your use, a low end one might be all you need. Trickiest part is dealing with clock drift, assuming you can't synchronize the cameras together.

author: bobcat
author_rank: Regular Contributor
timestamp: August 28, 2014, 08:39:19 am
content: Google "Alpha Blending" It is a math process that mixes 2 pictures together. I think that some DSP processors have alpha engines in them.

author: Tinkerer
author_rank: Frequent Contributor
timestamp: August 28, 2014, 02:11:47 pm
content: This seems more like a software solution can be used.Quote from: bobcat on August 28, 2014, 08:39:19 amBasically something like this. Many programs like games already apply processing to combine pixels and this is software based. No special hardware required.
Interesting Quantum Development! - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: August 28, 2014, 05:04:06 am
content: Greeting EEVBees:--Now this one is interesting. They entangled red and yellow photons. The yellows went to the target, and the reds went to the camera to produce an image of a cat. This could have real applications in radar, remote sensing, medical xrays, etc. What do you think? Link below.http://www.newscientist.com/article/dn26111-schrodingers-cat-caught-on-quantum-film.html?cmpid=RSS|NSNS|2012-GLOBAL|online-news#.U_6TWKPVkdU"The actress delivered a striking performance that ran the gamut of emotions, from A to B"Dorothy Parker 1893 - 1967Best RegardsClear Ether
Corsair Link - Page 1
Forum section: electronics / general

author: neslekkim
author_rank: Super Contributor
timestamp: August 27, 2014, 08:30:59 am
content: I ordered an new computer now, and I'm getting the corsair ax760i, some domniator ram, and maybe I get an corsair h100i cooler later.But what's kinda interresting here is something called Corsair Link, have anyone looked at that?, someplaces it seems that its using i2c, would be cool to connect to this to see what can be done.Corsair have had some fan controllers and other stuff to monitor powerusage, temperatures, fans and so on, but it seems kinda difficult to find now (Some said that it even not in production anymore, the Link Commander that is, what now that is.. )

author: Unknown
author_rank: Unknown
timestamp: August 27, 2014, 09:09:22 am
content: You might like to have a look at this thread on the Corsair forums I bookmarked a while ago -http://forum.corsair.com/v3/showthread.php?t=120092Corsair Link is the software that talks via USB HID protocol to a controller (e.g. built into the cooler), with the individual devices (fans etc.) connecting to it talking what appears (from the contents of the USB HID packets) to be SMBus or I2C.

author: neslekkim
author_rank: Super Contributor
timestamp: August 27, 2014, 12:03:16 pm
content: Havent received my stuff yet, but from videos it looks like there is an 4pin connector in the psu, and an usbdongle with the connector?but with the Corsair Link Commander, it seems like that one replaces the usbdongle, and have lots of those 4pin connectors (or maybe its' more pins)I found one used corsair link, maybe I should buy it to find out how that one is made, i cannot find any new ones, but they seem to have another model now, with so called nodes, GPU node, Lightning Node and so on, but the information on Corsairs webpages is lacking..

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 28, 2014, 12:30:26 am
content: There's a good chance it's using PMBus. If you have the original controller, it can be very helpful to attach a logic analyzer.

author: neslekkim
author_rank: Super Contributor
timestamp: August 28, 2014, 07:57:26 am
content: Yes, I think I have seen PMBus mentioned, reading the thread at the corsair forum more, lot of code are up there.
Show suggestion - Page 1
Forum section: electronics / general

author: Michael Rempel
author_rank: Contributor
timestamp: September 03, 2014, 03:18:44 am
content: Show idea, video tour of Assent works here at home. The EE lab is pretty pornographic for designers, with full board making, pick and place, reflow oven, and a NASA approved environmental test lab, but the row of laser machines in the back room, the Plastics printer room, the CNC plasma room and all that other stuff take a back seat to the original one and only machine to ever make the official Darth Vader mask. Volunteer run, you can become a member and gain access to all 6 million dollars worth of toys for a mere $150 a month. Ridiculously unbelievable, but here is the link below to prove it. Best part is there are people who know every piece of gear and love to teach about it, both formal and informal. I can shoot video and share the tour if people are interested. Lots of places wish this could be done but as far as I know this is the only one of its kind operating anywhere in the world. Totally volunteer run. People are allowed to use the equipment to make stuff for other people who are not local or not members. Some awesome products and art come out of this place every day.http://assentworks.ca/
Pulse heat soldering - question - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: August 26, 2014, 11:27:33 am
content: I am thinking about starting to use pulse heat soldering. I read some text about that method but it still not clear to me.In pulse heat soldering ( according to the theory)solder is melted and held down with pressure until it is solidifed, so there is no lifting or shifting of parts.Can anyone answer my questions please?1. is the same heater tip used during time when soldering( tip is heated ) and when it is necessary to hold it down and wait until the solder/tin is solidified( heater tip is cool down)?2.if so, how to prevent the heater tip is not sticked to the solder?3. When heater tip is hot it takes some time to be cool down. Is a special method used to cool down the heater or it is done only by the air around?Thank you for the reply

author: sacherjj
author_rank: Frequent Contributor
timestamp: August 26, 2014, 11:36:41 am
content: I've never seen pulse heat soldering in a situation where the iron touches solder. The place we are using it is FPC to FPC and FPC to PCB joints. This is done from the back side of the flex, with a resistive heated bar that applies heat across the width of the contacts.I don't see how this would be desirable for normal TH or SMD component soldering. You can't "hold down with pressure" any of those and still get a good heat and flow on the PCB, unless you are only holding down leaded SMD components.

author: Jane
author_rank: Frequent Contributor
timestamp: August 26, 2014, 12:02:01 pm
content: Thank you for the reply.And how is the resistive heated bar cool down? And do you use ACF or solder?

author: sacherjj
author_rank: Frequent Contributor
timestamp: August 26, 2014, 01:49:21 pm
content: The bar is very wide and thin and generally just air cools. The resistive heating element heats it up to just reflow temperature and then turns off. Pressure is maintained until well below freeze point of the solder. You can add compressed air jets to cool the head faster. I'm sure there are YouTube videos on it.Here is a good example with what sounds like compressed air cooling.I've usually seen this with contacts where solder has been pasted and reflowed previously. Fluxed on one side and solder on the other.
Emona @ Electronex 2014 - Page 1
Forum section: electronics / general

author: kaveendra
author_rank: Contributor
timestamp: August 18, 2014, 05:25:23 am
content: Wonder if Emona has any plans on special discounts for products at the exhibition? Especially on Rigol Oscilloscopes!Can John South give us some hope!!

author: kaveendra
author_rank: Contributor
timestamp: August 18, 2014, 11:05:09 pm
content: Got a mail from John, and he says "We aren't planning any special pricing at this years Electronex".... what a pity!

author: jmcdonald
author_rank: Contributor
timestamp: August 25, 2014, 06:13:45 am
content: Would be great to have warranty repaired/ex demo gear for sale.
Rigol NA has some other businesses as well? - Page 1
Forum section: electronics / general

author: rollatorwieltje
author_rank: Unknown
timestamp: August 24, 2014, 09:38:05 pm
content: So I was looking for a new watch on Google, and to my surprise I noticed a familiar domain name popping up...Not sure what's going on here, but is RigolNA also selling fake watches?http://www.rigolna.com/images/rolex/13541.html

author: tom66
author_rank: Super Contributor
timestamp: August 24, 2014, 10:09:02 pm
content: Their website has probably been compromised. Not a great sign for the rest of their data security. I hope they do not store customer details on the same server.

author: miguelvp
author_rank: Super Contributor
timestamp: August 24, 2014, 11:02:15 pm
content: Or someone saved a link in their webserver directory, doesn't seem to be a full site, just a single html page, but I haven't looked in detail
BAT54 - Page 1
Forum section: electronics / general

author: snipersquad100
author_rank: Frequent Contributor
timestamp: August 19, 2014, 07:59:43 pm
content: Hi, Can anyone tell me if this these two diodes are one package. It looks like two different diods but the bat54 is 2 diodes in a sot23 package. Eagle also shows it as a sinlge diode with a sot23 package. How do you wire up a sot23 when the cad program just shows a single diode with 2 pins.

author: c4757p
author_rank: Super Contributor
timestamp: August 19, 2014, 08:06:38 pm
content: BAT54 is one diode in a SOT-23. There's also BAT54A, BAT54C, and BAT54S, which are dual diodes (common Anode, common Cathode, and Series).

author: Precipice
author_rank: Frequent Contributor
timestamp: August 19, 2014, 08:08:37 pm
content: As shown in the datasheet you posted,a BAT54 is a single diode in a SOT23a BAT54S is 2 diodes in series in a SOT23a BAT54C is 2 diodes with a common cathode in a SOT23, etc.If your CAD package doesn't have the variant you want, then you need to make it. Shouldn't take long!It looks from your schematic like you either want to use 2 BAT54 devices, or a single BAT54A.(I'm not sure if there are 2 die, and a bit of bond wire, or a single die with 2 diodes. Doesn't really matter, though, the datasheet data is what counts)

author: snipersquad100
author_rank: Frequent Contributor
timestamp: August 19, 2014, 08:23:47 pm
content: Thanks guys.why didn't I see that, I just presumed being a sot23 it would be 2 diodes.

author: KJDS
author_rank: Super Contributor
timestamp: August 20, 2014, 06:55:22 am
content: Leartn two things from this,1) read the data sheet2) never rely on the libraries of CAD layout software.

author: VK3DRB
author_rank: Super Contributor
timestamp: August 23, 2014, 10:25:57 am
content: Quote from: KJDS on August 20, 2014, 06:55:22 amTrue. Component libraries without strict controls can never be trusted, especially public domain libraries.Any decent electronics company will have their own PCB Design Standards and component approval processes that are strictly followed.The only component libraries to trust (ie: approved for re-use) are those containing components which have been verified to be correct. Verification of components means when a printed circuit assembly arrives, the new component types have satisfied the requirements of the product assemblers, designers, debug technicians, the PCA manufacturer, the company PCB Design Standards and the component manufacturer's specifications.
Nine days left to buy a decent vacuum cleaner - Page 1
Forum section: electronics / general

author: lewis
author_rank: Frequent Contributor
timestamp: August 22, 2014, 11:55:00 pm
content: Edit after posting - just noticed this - thanks Simon:https://www.eevblog.com/forum/chat/this-is-why-we-should-all-leave-the-eu/So the nannies in the European Commission have decided that the populace cannot be trusted with a proper vacuum cleaner (or 'hoover' as we in the UK call it), and arebanningthe sale and import of all hoovers rated over 1600W from 1st September.http://www.bbc.co.uk/news/business-28878432Presumably industrial extractors are exempt - I'm getting one of these to leave on 24/7https://www.machinemart.co.uk/shop/product/details/nvd752-wood-vac?da=1&TC=SRC-wood%20vacFirst bananas, then lightbulbs, now hoovers. Jobs for the boys...

author: calexanian
author_rank: Super Contributor
timestamp: August 23, 2014, 12:21:57 am
content: 3 phase vacuum cleaner time!

author: mariush
author_rank: Super Contributor
timestamp: August 23, 2014, 12:48:57 am
content: Already discussed here:https://www.eevblog.com/forum/chat/this-is-why-we-should-all-leave-the-eu/?topicseen

author: zapta
author_rank: Super Contributor
timestamp: August 23, 2014, 04:04:35 am
content: Quote from: lewis on August 22, 2014, 11:55:00 pmCan you explain the bananas thing?Here the Utopians targeted toilettes water tanks, blobs, plastic bags with handles, internet poker, love locks, and gas blowers.

author: Unknown
author_rank: Unknown
timestamp: August 23, 2014, 04:28:38 am
content: http://en.wikipedia.org/wiki/Euromyth#Straight_bananas

author: G7PSK
author_rank: Super Contributor
timestamp: August 23, 2014, 08:04:43 am
content: I am having this one then, 15 KW should suck the carpet right off the floor.http://www.cfmindustrialvacuums.co.uk/CFM_3907_ATEX_Industrial_Vacuum.shtml
PCB library website - Page 1
Forum section: electronics / general

author: Alis
author_rank: Newbie
timestamp: August 21, 2014, 01:09:31 pm
content: Hello forum,I am a web builder / electronics enthusiast and I just recently thought of an idea, which I want to share with you and hear your opinions.What basically my idea is, is to make a website that lets you share your PCB library files (Eagle, Altium and so on...). Locating them would be easy, since everything is stored in one server. I would also hope making the ads to a bare minimum, if possible.It would be like a google, but less hassle to find what you want.Just want to hear your thoughts on this.CheersAlexander

author: kizzap
author_rank: Unknown
timestamp: August 22, 2014, 02:25:59 am
content: You mean Github? or Dropbox?

author: sleemanj
author_rank: Super Contributor
timestamp: August 22, 2014, 04:46:15 am
content: Quote from: kizzap on August 22, 2014, 02:25:59 amI imagine more likehttp://123d.circuits.io/circuits

author: TheBorg
author_rank: Frequent Contributor
timestamp: August 22, 2014, 06:11:05 am
content: Circuitbee did this IIRC, though its been a few years since I last uploaded something...
Infineon to acquire International Rectifier - Page 1
Forum section: electronics / general

author: Bored@Work
author_rank: Super Contributor
timestamp: August 21, 2014, 10:40:28 pm
content: http://www.irf.com/press-room/press-releases/nr140820iOuch, another one bites the dust ...

author: nctnico
author_rank: Super Contributor
timestamp: August 21, 2014, 10:43:43 pm
content: That is weird. I thought Vishay had taken over IRF long ago.
Proper ESD/overvoltage protection for USB - Page 1
Forum section: electronics / general

author: Unixon
author_rank: Frequent Contributor
timestamp: August 21, 2014, 11:11:27 am
content: There are different components available for the purpose of protecting a USB device from ESD as well as the USB host from a malfunctioning USB device: special multiport TVS, small discrete TVS, power TVS, zener diodes, etc. As far as I've seen, different schematic solutions use different approaches depending on real availability of components.Out of all combinations I found by experiment that power TVS doesn't work for data lines even if they safely pass on voltage rating, probably due to high capacitance.What would you use for your project?

author: VK3DRB
author_rank: Super Contributor
timestamp: August 21, 2014, 11:47:56 am
content: I assume you are mainly interested to protecting the data lines. For the data lines, BAT54S are a cheap and common solution. Pin 3 on the data line, pin 1 to ground, pin 2 to +5V rail. Low capacitance, low turn on voltage and fast switching.Depending upon what the USB is driving, use a TVS and capacitor across the rails at the device.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 21, 2014, 12:43:31 pm
content: BAT54 is way too much capacitance for USB if you're going to touch High Speed. Schottky diodes with low enough capacitance don't handle enough peak current, so your only other option is junction diodes: usually small avalanche diodes, or clamp diodes into a somewhat bigger TVS (that usually doubles for VCC protection).As for EMI/RFI protection, USB is simply completely the wrong standard for that kind of environment. Use fully shielded connectors and cables everywhere possible, but don't expect miracles.Tim

author: tszaboo
author_rank: Super Contributor
timestamp: August 21, 2014, 12:47:13 pm
content: Most manufacturers - who make TVS protection- have some kind of selection guide. USB is usually a custom solution. IE TPD2E1B06

author: VK3DRB
author_rank: Super Contributor
timestamp: August 21, 2014, 01:07:00 pm
content: Quote from: T3sl4co1l on August 21, 2014, 12:43:31 pmYep, depends on the application, what USB type, and other things like the series resistance and other capacitances. BAT54S's go down to roughly 2pF at 5VR. Some zeners go down to 0.3pF.

author: RenGate
author_rank: Contributor
timestamp: August 21, 2014, 07:39:41 pm
content: Some manufacturers produce diode arrays with TVS in one package for as many data lines as you need. For my last project I decided to try MAX3207E IChttp://www.maximintegrated.com/en/products/interface/protection-and-isolation/MAX3207E.html, which protects two data lines. There is also similar solution from ST, USBLC6-2SC6http://www.st.com/web/en/resource/technical/document/datasheet/CD00050750.pdf. Overall, I think such ICs are a good choice for their small footprint size and price.
Flir One iPhone case - Page 1
Forum section: electronics / general

author: bob808
author_rank: Frequent Contributor
timestamp: August 19, 2014, 10:11:37 pm
content: Hello everyone,I just saw this and thought to share it:http://www.geek.com/review/flir-one-thermal-camera-the-iphone-case-of-my-dreams-1601894/Would love to see a teardown of this thing.

author: Unknown
author_rank: Unknown
timestamp: August 20, 2014, 07:44:19 am
content: There won't be anything exciting in there! The Lepton camera core (probably) can't be taken apart without destroying it and all the "magic" will happen in softwareThe FLIR One seems like it'll be a useful bit of kit, but if you want electronics porn you might be better off with a teardown of an ancient vidicon-based thermal imager instead!

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: August 20, 2014, 07:59:51 am
content: Quote from: bob808 on August 19, 2014, 10:11:37 pmStay tuned - hopefully there is one somewhere over the Atlantic right now

author: firewalker
author_rank: Super Contributor
timestamp: August 20, 2014, 08:05:25 am
content: Quote from: mikeselectricstuff on August 20, 2014, 07:59:51 amGreat!!!Alexander.

author: george graves
author_rank: Super Contributor
timestamp: August 20, 2014, 08:49:15 am
content: $349.00 uds. Not bad!

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: August 20, 2014, 09:12:29 am
content: Can someone merge this with the existing thread....https://www.eevblog.com/forum/testgear/flir-one-personal-thermal-imaging-device-for-your-iphone5-5s/
Just curious, what sort of hourly wage do on call techs usually get? - Page 1
Forum section: electronics / general

author: XOIIO
author_rank: Super Contributor
timestamp: August 19, 2014, 11:33:21 am
content: Alright, well that company that contacted me (techniconnection) about doing on call work wants to know what my hourly rate would be.Now, minimum wage here is $10 an hour, of course that is minimum, and not on call work. I'm not really sure what sort of rates for the employee are in this sort of area (it will be computer/other equipment servicing).Don't want to put it too low and get screwed, or put it too high and seem stuck up. For my local classifieds work I usually just charge whatever amount based on the job that needed to be done (say $60 for a reinstall for example)

author: bwat
author_rank: Frequent Contributor
timestamp: August 19, 2014, 12:15:24 pm
content: Personally I never discuss my hourly rate with other contractors. It's a discussion where two people can be reasonably happy at the start and in the end somebody is upset. It's not worth it. Figure out what yearly salary you want and calculate backwards keeping in mind the hours you wont be billing. I work in a different sector so my rule of thumb w.r.t. how many billable hours a month (160) and how many working months a year (9) wont apply to you. If the number you come up with seems uncomfortably high, then you're probably in the right ballpark. The client will always try to push the price down so factor that in too. At the end of the day if you're getting your target salary then you can be happy.
Earthing - Page 1
Forum section: electronics / general

author: suicidaleggroll
author_rank: Super Contributor
timestamp: August 18, 2014, 12:25:49 am
content: So THIS is why I always feel so jolly when working with electronics on an esd mat:http://www.earthing.com/And you too can enjoy this same satisfaction for the low low price of only $20 for anesdearthing wrist strap!Some guy in my girlfriend's yoga studio was pushing this crap today, claiming it can CURE hundreds of diseases, including ALS. If you couldn't tell already, I live in Boulder, CO...hippie capital of the world.

author: Maxlor
author_rank: Frequent Contributor
timestamp: August 18, 2014, 01:45:20 am
content: That sounds like a great idea! I imagine that in the target democraphic, a good number of people will get the power socket hole wrong, and darwinism will take its course...

author: XOIIO
author_rank: Super Contributor
timestamp: August 18, 2014, 01:51:37 am
content: Took a look at that website and saw the first few seconds of that video...Quote from: Maxlor on August 18, 2014, 01:45:20 amWe need to convince them that one on each wrist will be twice as effective, that will help speed things up

author: mij59
author_rank: Frequent Contributor
timestamp: August 18, 2014, 04:01:26 am
content: Seems not to cure mental illnesses.

author: G7PSK
author_rank: Super Contributor
timestamp: August 18, 2014, 07:55:58 am
content: It has got to be good, it's explained by a Aussie with a yellow DMM in this video.http://youtu.be/GnZjY_q2WQk

author: VK3DRB
author_rank: Super Contributor
timestamp: August 18, 2014, 12:08:14 pm
content: I did not realise I could prevent cancer and heart problems by walking barefoot. Gee, the secret has been kept from us all these years. Shame on science for not telling us!I want to ask him, "Doctor, do you soak up extra electrons when you step on dog crap? What about if I come across a pile of?This "doctor" speaks more hocus pocus than Benny Hinn.

author: Bukurat
author_rank: Regular Contributor
timestamp: August 18, 2014, 01:28:58 pm
content: Should be able to sell them a custom cut to length chain attached to a metal butt plug, that way they can keep their shoes on.

author: IO390
author_rank: Regular Contributor
timestamp: August 18, 2014, 05:50:59 pm
content: Quote from: Bukurat on August 18, 2014, 01:28:58 pmMight help keep all the BS in, tooI walk barefoot quite often in my garden, simply because I have a lot of space and it feels quite nice to walk on grass.This is just bullshit... It's like the rest of the 'health' industry, especially supplements. My dad's girlfriend (not my mother thank fuck) is really into her supplements, and shelooksunhealthy. She's always coughing too, not to mention the fact that she's thin as fuck. The irony is that she has a PhD in, wait for it, philosophy.These types of things always make me laugh, though. "Oh yeah, we're such great people and here's this great discovery. It's totally free too! But buy our stuff."

author: XOIIO
author_rank: Super Contributor
timestamp: August 19, 2014, 03:37:53 am
content: Quote from: IO390 on August 18, 2014, 05:50:59 pmUnfortunately wrong end to keep the bullshit in.
Schematic of sanctuary - Page 1
Forum section: electronics / general

author: calexanian
author_rank: Super Contributor
timestamp: August 18, 2014, 06:06:08 pm
content: Have you ever just sat at your desk, bench, or walked around staring at a schematic or bom, etc for an un nesicarialy long time just to avoid people. As in "He must be doing something important, or being productive in some way" Just so you can avoid doing any real work? Total brain off mode.. Some days just feel like that!

author: IO390
author_rank: Regular Contributor
timestamp: August 18, 2014, 06:27:04 pm
content: All the time. That's the primary purpose of my reference books.

author: David Hess
author_rank: Super Contributor
timestamp: August 18, 2014, 06:38:12 pm
content: Carrying a clip board seems to help make you look busy.

author: Rigby
author_rank: Super Contributor
timestamp: August 18, 2014, 07:17:08 pm
content: just look exasperated and people will:A) believe you're working harder than they areB) leave you alone

author: tszaboo
author_rank: Super Contributor
timestamp: August 18, 2014, 10:13:16 pm
content: Arent you bored out?http://en.wikipedia.org/wiki/Boreout

author: zapta
author_rank: Super Contributor
timestamp: August 19, 2014, 12:25:40 am
content: Quote from: calexanian on August 18, 2014, 06:06:08 pmThat's what Bose noise canceling headphones are forAs for not being productive, I try to avoid it, but freely surfing eevblog during long compilations.

author: free_electron
author_rank: Super Contributor
timestamp: August 19, 2014, 02:11:12 am
content: Some one needs to invent boss noise cancelling earphones ...

author: Richard Crowley
author_rank: Super Contributor
timestamp: August 19, 2014, 02:20:45 am
content: “When people you greatly admire appear to be thinking deep thoughts, they probably are thinking about lunch.”? Douglas Adams
Does anyone know of an IEC 60063 ('E' component value series) poster? - Page 1
Forum section: electronics / general

author: microbug
author_rank: Frequent Contributor
timestamp: August 18, 2014, 05:17:14 pm
content: I constantly find myself opening theWikipedia page on preferred numbersto find appropriate resistor values. This is getting a little tiresome and it's not an ideal format: does anyone have / know of an IEC 60063 (or a specific E-series; IEC 60063 is the standard that covers them all) poster that I can stick on my wall? Unsurprisingly, a Google search for 'IEC 60063 poster' returned no useful results.I suppose I could make one if there isn't one out there.EDIT: It turns out searching 'IEC 60063' returns several good posters.
Who is the most famous, most impressive australian for you? - Page 1
Forum section: electronics / general

author: ProBang2
author_rank: Frequent Contributor
timestamp: August 18, 2014, 02:00:27 am
content: Hello.Only for curiousity, please tell us:Who is the most famous, most impressive australian for you?Who is it? And why you are impressed? Maybe it is interesting, where you come from?(Australian or not?)Thank you for the effort to answer.Greetings,Hartmut

author: XOIIO
author_rank: Super Contributor
timestamp: August 18, 2014, 02:11:40 am
content: Why, dave of course!Wait, forgot the lipstick to kiss ass.lol

author: zapta
author_rank: Super Contributor
timestamp: August 18, 2014, 02:21:42 am
content: Steve Irwin.

author: ProBang2
author_rank: Frequent Contributor
timestamp: August 18, 2014, 02:29:46 am
content: Probably there are some other australians...I am mentioning him, too.Steve IrwinThis guy was enthusiastic and straight forward. Sometimes doing his job with a kind of joy like a child.Worldwide popular since his TV- appearence, he was still earth-grounded.Further: For his target (to save wildlife) he has done more in private than in public.

author: Rufus
author_rank: Super Contributor
timestamp: August 18, 2014, 02:31:41 am
content: Skippy.

author: liquibyte
author_rank: Frequent Contributor
timestamp: August 18, 2014, 02:33:45 am
content: Bob

author: Vgkid
author_rank: Super Contributor
timestamp: August 18, 2014, 02:37:59 am
content: Eric Bana, actor/car guy.

author: Cside
author_rank: Regular Contributor
timestamp: August 18, 2014, 02:49:08 am
content: Tony AbbottThe man is so up-to-date with the latest technology.

author: DavidDLC
author_rank: Frequent Contributor
timestamp: August 18, 2014, 02:57:23 am
content: Why a german guy is interested on the most famous australian ?Are you expecting that most of the people mention Dave ? You may have it, specially if you post this on his forum.Are we lacking posts ideas for this forum ?

author: ablacon64
author_rank: Frequent Contributor
timestamp: August 18, 2014, 03:00:44 am
content: I only know Dave Jones and Crocodile Dundee. It would be a good fight!

author: tautech
author_rank: Super Contributor
timestamp: August 18, 2014, 03:01:14 am
content: Here's a list, take your pick.Kiwis the Aussies have tried to claim1. Lamingtons2. Crowded House3. Phar Lap4. Pavlova5. Jane Campion6. Rebecca Gibney7. Keisha Castle-Hughes8. Split Enz9. The All Whites performance at the 2010 FIFA World Cup10. Hugh Riminton11. Sam Neil12. Alan Dale13. Keith Urban14. Sonny Bill Williams15. Brad Thorn16. Nathan Cayless17. Richard WilkinsKiwis the Aussies can have – take ‘em!1. Karmichael Hunt (rugby league and AFL)2. Quade Cooper (rugby union)3. Willie Mason (rugby league)Who wants them?1. Robbie Deans2. Russell Crowe

author: zapta
author_rank: Super Contributor
timestamp: August 18, 2014, 03:32:38 am
content: Gary The Goat.

author: kolonelkadat
author_rank: Regular Contributor
timestamp: August 18, 2014, 03:41:07 am
content: TISM
My Monthly Trip to the Electronic Surplus Warehouse - Page 1
Forum section: electronics / general

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: August 17, 2014, 03:49:11 pm
content: Another good trip to the Electronic Surplus Warehouse. Project boxes, many rolls of Kapton tape, 3M Teflon PTFE Glass tape and yet another PSU and a tested and working 2kVDC 500uF oil capacitor!The PSU is a Kepco ATE 150-1.5M 0-150VDC 1.5A power supply with CV/CC crossover and 10-turn adjustments pots and analog meters. It also has the remote control card installed!Tested the PSU over the entire range and it's spot on! Good specs too...I could not pass up the 2kVDC 500uF capacitor for 20 dollars! Time to get out the chicken stick!Good trip, I really like this place!

author: SeanB
author_rank: Super Contributor
timestamp: August 17, 2014, 05:04:23 pm
content: I was at the scrapyard Friday, and there was a nice Hitachi Mosfet amplifier, in somewhat used condition. Was looking to get it, but as it is about 20kg, and they charge per kilo i might see if it is still there next visit and negotiate a lower price. Then I will probably return most of it as scrap metal. Probably only keep the vertical mosfets.

author: N2IXK
author_rank: Frequent Contributor
timestamp: August 17, 2014, 06:56:38 pm
content: Nice caps, but I would be careful of possible PCB content, especially if you are doing "abusive" stuff to them that might cause a rupture/leakage. Shorting stick and rubber lineman's gloves definitely in order around that thing. The label said they had more of these? Quartershrinker or Gauss gun maybe?

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: August 17, 2014, 07:36:08 pm
content: Quote from: SeanB on August 17, 2014, 05:04:23 pmThe Mosfets would be worth it alone!

author: Terabyte2007
author_rank: Frequent Contributor
timestamp: August 17, 2014, 07:43:12 pm
content: Quote from: N2IXK on August 17, 2014, 06:56:38 pmPCB was a concern, but the MFG date suggests a 50/50 that it might contain PCB's, regardless, PCB's are harmless unless it leaks or explodes. It does not have any leaks that I can see nor do I plan on pushing it to its rupture point. A quartershrinker would be cool!BTW, the last one. A local university bought like 5 or 6 of them. This was the last one.

author: TerraHertz
author_rank: Super Contributor
timestamp: August 17, 2014, 11:35:15 pm
content: Quote from: Terabyte2007 on August 17, 2014, 07:43:12 pmJudging by the lightweight terminals, that cap isn't designed for impulse discharge use. If you try to use it as a quartershrinker, the internal leads may either vaporize or tear loose.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 18, 2014, 12:35:16 am
content: PCBs went away in the 60s or 70s... if it's around that date, and doesn't say "No PCBs", it's probably got PCBs.Tim

author: dannyf
author_rank: Super Contributor
timestamp: August 18, 2014, 12:38:15 am
content: QuoteVertical mosfets, made by anyone, but Hitachi in particular, aren't worth anything.Lateral mosfets, made by anyone, but Hitachi in particular, are a different story.
Drobo Mini RAID - Page 1
Forum section: electronics / general

author: IanJ
author_rank: Unknown
timestamp: August 17, 2014, 07:02:49 pm
content: Interesting wee unit offering a portable RAID system using 4off 2.5" HDD's. I quite like it.......and quite useful for the on-the-go video blogger............http://www.dpreview.com/articles/4193777512/accessory-review-drobo-mini-raid?utm_campaign=internal-link&utm_source=features-default&utm_medium=homepage-block&ref=features-defaultIan.

author: Zbig
author_rank: Frequent Contributor
timestamp: August 17, 2014, 08:04:26 pm
content: I'm a long time Drobo products' user (although not Mini) and like the idea and the product. One remark though: it's not RAID in the traditional sense. They call it BeyondRAID and it abstracts away all of the data architecture details from the end user. That's their philosophy and it's not necessarily a bad thing (I, for one, don't mind it at all), just don't expect to be able to choose between particular RAID levels (-0, -1, -5), etc. In fact, don't expect to be able to choose anything at all, other than single- or double-disk redundancy. Judging from their official forum I frequent, many people make the false assumption that's just another RAID box without doing any prior research and then complain they're not able to do this or that. Worth mentioning, especially on a forum for "techies".
Pulse Heat soldering - advantages - Page 1
Forum section: electronics / general

author: Jane
author_rank: Frequent Contributor
timestamp: August 15, 2014, 08:05:52 pm
content: As far as I understand Pulse Heat soldering is used for soldering FPC (Flexible Printed Circuit) on LCD using ACF( anisotropic conductive film) also called ACF bonding.Can anyone let me know why pulse heating is used? What are advantages ?Thank you for replies

author: ablacon64
author_rank: Frequent Contributor
timestamp: August 15, 2014, 09:58:01 pm
content: As I understand pulse heat soldering is good for those type of cables because pressure is maintained until solder gets solid again. I guess it's less costly because the tool tip is not hot all the time (like a regular soldering iron).I wonder how good a pulse heat soldering tweezer would be for SMD soldering. I imagine myself removing a couple of bad SMD caps and diodes in just a few seconds. And putting them back as quickly.

author: nanofrog
author_rank: Super Contributor
timestamp: August 16, 2014, 09:39:07 am
content: Feature of Pulse Heat Joining
Well, got an airsoft gun, guess it was just a matter of time until I hit my eye. - Page 1
Forum section: electronics / general

author: XOIIO
author_rank: Super Contributor
timestamp: August 15, 2014, 12:54:56 am
content: Yup, like a Christmas story all over again, though not in the conventional sense. I didn't hit myself in the eye with a bb by shooting, but by loading the magazine. The little spring release is on the other side which you don't really look at while loading, and when I had gotten up to 8 bbs or so, I guess my finger nudged it, and the shot up into my faceI just got a rain of bb's spraying me in the face, and stayed still for a couple seconds before facepalming and laughing at the situation, not the first time some have popped out, but first time I was hit by any. I'm just glad I had quite a few in, if there are only a couple they tend to take off pretty good.Who knows, it might be a relaxing spa treatment somewhere :p

author: TheRuler8510
author_rank: Regular Contributor
timestamp: August 15, 2014, 01:06:44 am
content: You are better off modding a Nerf gun. Nerf guns modded in this fashion beat any airsoft gun by a mile.I wonder how they do it...?Good Luck,

author: XOIIO
author_rank: Super Contributor
timestamp: August 15, 2014, 01:13:33 am
content: Quote from: TheRuler8510 on August 15, 2014, 01:06:44 amMost likely really easy to do ti with nerf guns, and I was a nerf fanatic, still have quite a few around that I've done some mods to, but I wanted to get something more realistic in terms of weight and size, not to mention having ammunition in a magazine.This is just a spring one, but it has a metal slide, at some point I am going to get a full metal gas blowback one, but this is fine for now, and the one I really want can't be shipped to Canada because, of all things, it fires to slowly.I mean, what the hell? Fires too slowly yet it's totally fine to take the orange ends off here.

author: justanothercanuck
author_rank: Frequent Contributor
timestamp: August 15, 2014, 06:35:18 am
content: Quote from: oblig simpsons quote
So.... anyone here know of techniconnection? - Page 1
Forum section: electronics / general

author: XOIIO
author_rank: Super Contributor
timestamp: August 14, 2014, 10:00:00 pm
content: Can't find any reviews or much information on this company but I just got an email from techniconnection, not much info given in the email but sounds like it could be interesting so I replied saying it sounded like it could be an interesting opportunity, and asking for more detail on the work that would need to be done.Quote