hybridfree/eevblog-posts huggingface dataset:
Video test generator signal on DVD disc ?  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 10, 2011, 02:29:13 am
content: Suddenly came to me the idea to create one DVD disc or many, with a prerecorded patterns similar to the ones of the video test generators.Does any one haves any idea of where I can find such patters ?

author: jahonen
author_rank: Super Contributor
timestamp: September 10, 2011, 07:37:34 am
content: A good idea but I think it has been done already:http://www.videoessentials.com/products_main.phpRegards,Janne

author: oPossum
author_rank: Super Contributor
timestamp: September 10, 2011, 12:14:52 pm
content: Aviais another audio/video setup and calibration disc.Both Video Essentials and Avia have detailed instructions on how to use the video test patterns. They teach you how to setup video and audio in a home theater system.

author: Unknown
author_rank: Unknown
timestamp: September 10, 2011, 12:23:37 pm
content: Quote from: jahonen on September 10, 2011, 07:37:34 amYeees, but a video/audio disk to open the soundstage, flatten response to 1GHz, reduce mains interference, provide crisp multidimensional subsonic, submarine, sublime image has yet to hit the market. Kyriako?

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 10, 2011, 01:50:25 pm
content: What I need mostly is an geometry pattern, so to be able to adjust analog TV sets.Something simple like many cubes together.I do have reference DVD disc for Home theater testing.

author: Lightages
author_rank: Unknown
timestamp: September 10, 2011, 02:21:08 pm
content: There are some available for various prices, some for free:http://www.calibrate.tv/index.htmlhttp://www.itworks.com/products/DVDref-suite.htmIf you have baseband video out on your computer you can use the Nokia Monitor Test:http://www.softpedia.com/get/Multimedia/Video/Other-VIDEO-Tools/Nokia-Monitor-Test.shtmlorhttp://www.softpedia.com/get/Tweak/Video-Tweak/Nokia-Test-Pattern-Generator.shtml
Nike shoes from Back To The Future - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: September 09, 2011, 06:35:38 pm
content: For theverykeen fans amongst us.http://a323.yahoofs.com/ymg/ukiemovies__9/ukiemovies-276801117-1315563758.jpg?ymvz3nFDQhXfb.Rnhttp://uk.movies.yahoo.com/blog/article/252367/nike-release-back-to-the-future-shoes.html

author: EEVblog
author_rank: Unknown
timestamp: September 09, 2011, 10:45:17 pm
content: SWMBO won't let me bid :-(Dave.

author: firewalker
author_rank: Super Contributor
timestamp: September 09, 2011, 10:54:46 pm
content: Quote from: EEVblog on September 09, 2011, 10:45:17 pmTrade it for a year of house keeping!Alexander.

author: Psi
author_rank: Super Contributor
timestamp: September 09, 2011, 11:59:45 pm
content: They don't actually do themselves up sadly.
Diptrace now has 3D preview!!! - Page 1
Forum section: electronics / general

author: wosser
author_rank: Contributor
timestamp: September 08, 2011, 06:27:25 pm
content: Just downloaded the latest (v2.2.0.0) release of Diptrace, I wasn't expecting much really.A few minutes later I spot a new icon on the toolbar "3D". So I instantly think it's going to be some isometric projection hack or something.Clicked on it (as one does) and nearly fell off my seat in surprise. It's a pretty decent interactive (zoom, spin, pan) 3D accelerated model of your PCB. And it's all nicely antialiased too. Slick.The model library isn't bad to start with but there are a few absent parts I would have liked but no big deal. I posted a quick blog about it just now...http://wardyprojects.blogspot.com/2011/09/protopeller-in-3d.html

author: Chet T16
author_rank: Frequent Contributor
timestamp: September 08, 2011, 08:49:58 pm
content: Awesome!

author: seattle
author_rank: Contributor
timestamp: September 09, 2011, 04:05:44 am
content: Sadly, they have gone and implemented 3D but there is no way to re-order pages of your schematic once you have created them, nor is there a way to add in multi-line text, nor can you search on something like "LDO" in your part library and have all the LDOs turn up.I really like Diptrace, but they put the cart way ahead of the horse with this feature.

author: Mechatrommer
author_rank: Super Contributor
timestamp: September 09, 2011, 09:08:45 am
content: 3d already available started from version 2.1.9.2. but i'm yet to figure out where the collection of 3d model for most components in the net. it uses 3ds format (and wrl as well, not sure what format is it), so maybe creating our own model in 3d studio max software will enable us to model anything we like. but i'm yet to study this. if its possible then its cool. but now all i have is 3d view of my pcb only.

author: wosser
author_rank: Contributor
timestamp: September 10, 2011, 09:34:13 am
content: I've just tried making a model in Blender (free and rather good 3D modelling app), exporting in 3DS format and importing into Diptrace - it worked! Awesome.Although this just forces everyone to add a 3d library to their already hard-to-maintain pattern and component libraries! Ahh well it's not to big a deal I guess, it's nice to have the freedom to make some really awesome models.
Metal Film Resistor - Change of Tc at 50% Power Rating - Page 1
Forum section: electronics / general

author: onemilimeter
author_rank: Frequent Contributor
timestamp: September 09, 2011, 08:30:53 am
content: Let's refer to the following resistor:WELWYN - PR5Y-100RBI - RESISTOR, 100R, 0.5W, 0.1%, 15PPMhttp://onecall.farnell.com/welwyn/pr5-10kbi/resistor-10k-0-5w-0-1-15ppm/dp/1634076If a current of 50mA flows through the resistor, the power dissipation will be 0.25W. Is there any rule of thumb that tells how much change of Tc (case temperature) of the resistor?Cheers.

author: mkissin
author_rank: Regular Contributor
timestamp: September 09, 2011, 08:47:18 am
content: Yep, if you pull up the datasheet (http://www.farnell.com/datasheets/66234.pdf) you can find the Thermal Impedance rating.In this case (0.5W version), it's 112 degrees C per watt, so you'll get a rise of 56 degrees above whatever the ambient happens to be.

author: onemilimeter
author_rank: Frequent Contributor
timestamp: September 09, 2011, 08:53:55 am
content: Quote from: mkissin on September 09, 2011, 08:47:18 amMany thanks. That's what I'm looking for.

author: onemilimeter
author_rank: Frequent Contributor
timestamp: September 09, 2011, 09:48:37 am
content: The following article gives the thermal resistances of various SMT packages:http://www.vishay.com/docs/28844/tmismra.pdfI wonder if there is a similar article for resistors in axial package. This will be useful as some manufacturers do not state the thermal impedance in their datasheet.

author: onemilimeter
author_rank: Frequent Contributor
timestamp: September 09, 2011, 09:51:48 am
content: Quote from: onemilimeter on September 09, 2011, 09:48:37 am
USB Port Control For Potential Projects - Page 1
Forum section: electronics / general

author: Keith
author_rank: Contributor
timestamp: September 08, 2011, 10:50:50 am
content: Hi - I can do some programming but not building device drivers. I would like to experiment with using the USB port to send and receive data to/from my projects. I guess I'm looking for the same functionality that I had with using Borland C and talking directly to a printer port by calling the hardware directly with DOS. Since Windows, I have not been able to talk to the hardware the same way and with each subsequent release, the hardware gets further away. I'm starting to explore this again just to have some fun. Can anyone provide me with any guidance on getting some software that I can use to talk to the USB port? I can write the UI that I want but I'm not skilled enough to write a device driver. Thanks

author: hightmare
author_rank: Newbie
timestamp: September 08, 2011, 11:19:04 am
content: ft232rl

author: firewalker
author_rank: Super Contributor
timestamp: September 08, 2011, 12:15:55 pm
content: There islibusbyou can use.http://www.libusb.org/http://www.libusb.org/wiki/libusb-win32Alexander.
putting transformer windings in parallel - Page 1
Forum section: electronics / general

author: Simon
author_rank: Unknown
timestamp: September 08, 2011, 06:45:22 am
content: Am i safe to connect the two outputs of a toroidal transformer in parallel ? such as this one:http://www.ebay.co.uk/itm/HIGH-QUALITY-500VA-TOROIDAL-TRANSFORMER-0-35-0-35-/250858319792?pt=UK_AudioElectronicsVideo_Video_TelevisionSetTopBoxes&hash=item3a68522fb0#ht_1326wt_906

author: Psi
author_rank: Super Contributor
timestamp: September 08, 2011, 06:49:40 am
content: yep, as long as you connect them around the right way.If you're not sure about the phase of each output (or it doesn't tell you), put a 230v lightbulb in series with the primary.If the light bulb turns on with no load then you have the secondary windings connected together around the wrong way (transformer is shorted).

author: Gall
author_rank: Frequent Contributor
timestamp: September 08, 2011, 07:08:19 am
content: Another safe way to determine the correct polarity is to use an AC voltmeter. Do not connect both ends at once, connect only one end of windings first. Leave another end of each winding not connected. Measure the AC voltage between dangling ends. If it is near zero, you have the correct phase and it is safe to connect. If it is near double winding voltage, swap ends of one winding.If the transformer is not connected at all, just connect windings in series and measure total voltage. Now you know phases.It works for relatively high quality transformers only. Low-quality units may have quite different voltages even at outputs with the same rating. Do not connect outputs together if you see different voltages on them.

author: Unknown
author_rank: Unknown
timestamp: September 08, 2011, 07:08:41 am
content: Quote from: Psi on September 08, 2011, 06:49:40 amIE: in phase. The TX diagram will usually show a dot beside one wire of each secondary winding. connect the dots for parallel.

author: ciccio
author_rank: Frequent Contributor
timestamp: September 08, 2011, 09:58:07 am
content: Yes, it is "near to always" safe for toroids, "far from always" for laminated.Toroids are wound with a machine that can wind only one core at once, and that usually require the presence of an operator (costly).To reduce the time needed for winding, the two secondaries are usually "bifilar wound" , that means that two wires are wound together at the same time. This guarantees that the two secondary are identical, and they can safely be wired in parallel.The same applies to dual-primary transformers: they can be wired in parallel (for 115 V) or in series (for 230 V).Regards
Dave's next shoes are coming-up - Page 1
Forum section: electronics / general

author: terriea
author_rank: Contributor
timestamp: September 08, 2011, 12:32:27 pm
content: Nike released a teaser video that will make every Back to the future Fanboys wet their pants (and trigger the self-drying device):This is surely the outcome of theNike patents self-lacing shoesstory.Can't wait to see some cannoning tests on theseStill on the geek fashion departmenthere is the best t-shit ever(no offense to the flux capacitor t-shirt) plus it refers to ausie band so I'm not that off-topicEDIT: Turns out the shoes are replicas of the ones from the movie. They does not include self-lacing feature, just ome fancy ligths. Just a few units will be produced and auctionaued on eBay. It's all for a good cause as the benefits will go to Michael J.Fox fundation for parkinson's resesarch. Surely the best way to get geeks unite for a good causehttp://nikemag.ebay.com/?_trksid=p5197.m1256
Chinese DIYers to transform knockoff cell phone with MTK chips into pocket scope - Page 1
Forum section: electronics / general

author: Storeinfinity
author_rank: Contributor
timestamp: September 02, 2011, 10:07:44 am
content: Recently people noticed on eBay and Chinese taobao a so called pocket size mini oscilloscope hit off thus people in ourdev.com bbs started multiple topics and gathered data base with its specs, PCB picture download, circuit pdf, codes, battery bugs,FILExxx.DAT BMP output, UI assessment demo exe, material cost including parts photos for DIYers, opening screen customization, hacked firmwares by diyers for update to 1.2 version.Some observes that all these scopes apply cell audio signal input as lead end, single channel, with an oscilloscope software based on its original cell phone operating system. BTW, most of these pocket mini oscilloscopes look like a mp3 player. On ebays they all look the same to me with different oem logos.Now people on line are wondering a change: directly hacking some cheap knockoff phones into a mobile oscilloscope with a bandwidth as 10MHz, dual channels so as to watch 1MHz, also a storage of 10 sets waves with 2 channels, touchscreen serves as buttons, battery life up to 8 hours.So far it is just ideas popping out and I personally quite look forward to that one since pocket mini oscilloscopes are not that appealing to be on ebay.

author: Hypernova
author_rank: Unknown
timestamp: September 02, 2011, 11:00:44 am
content: This is one fascinating spam bot.

author: johnboxall
author_rank: Unknown
timestamp: September 02, 2011, 12:11:47 pm
content: Craptacular

author: shadowless
author_rank: Regular Contributor
timestamp: September 02, 2011, 01:18:11 pm
content: thought this one was banned?

author: Bored@Work
author_rank: Super Contributor
timestamp: September 02, 2011, 03:49:12 pm
content: And by pure coincidence those fantasy cell phones will appear in a certain store real soon now?
Wit and Wisdom..... - Page 1
Forum section: electronics / general

author: kaptain_zero
author_rank: Regular Contributor
timestamp: September 02, 2011, 08:37:44 pm
content: I was listening to the radio this morning and heard that Red Green will be making an appearance with his Wit and Wisdom tour. For my US friends, Red Green hardly needs an introduction... for the rest, it may require a google search. To the point, Red Green was on the radio and was asked to give an example of Wit and Wisdom and both made me laugh pretty good. Here goes, but it is to the best of my recollection from this morning:Wit: "You know when your wife is having fun, and you're not? At that point, you're having way more fun than you would have, if YOU were having fun, and your wife wasn't!"Wisdom: "Never get between electricity and where it wants to go."Christian
Software engineering equivalent of EEVBlog - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: August 31, 2011, 09:01:14 am
content: Any recommendations for a software equivalent version of EEVBlog? I would to follow a software expert and hear his/her opinions on new software technology (or all things software), the same way Dave does it for electronics.

author: PeterG
author_rank: Frequent Contributor
timestamp: August 31, 2011, 09:04:55 am
content: Utube is full of videos on various aspects of software development. Just search for any topic and there will be a video on it somewhere.Regards

author: Unknown
author_rank: Unknown
timestamp: August 31, 2011, 04:07:21 pm
content: Yeah, and there are forums too. But it's just different without some enthusiast like Dave to give some commentary on it.

author: Time
author_rank: Frequent Contributor
timestamp: August 31, 2011, 04:16:16 pm
content: Software is not the same as hardware. You could probably never have an equally successful blog over software. For starters there is no need to ever video tape anything. Its all just words and characters.

author: Unknown
author_rank: Unknown
timestamp: August 31, 2011, 04:29:57 pm
content: Yup, I guess I'll stick with forums and newsgroups.But actually, people like Steve Gibson (Security Now podcast) who talks and describes assembly language, encryption algorithm, cryptography, PDP-8 language, etc really gets me excited over those areas. So, to me, having a person there talking about it really helps, and I believe it will ignite the younger audience's interest as well.Not necessarily have to be programming ... perhaps algorithms, optimizations, etc.Video is just not the same as webpages/forums.

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: September 01, 2011, 02:37:24 am
content: For security related stuff, search YT for hacker conference presentations, such has HOPE, etc. Some interesting stuff out there.GoogleTechTalkshas good material, although sometimes the audio quality of their vids is piss poor. People have been complaining about that for years and google still unable to fix something trivial as this.

author: Unknown
author_rank: Unknown
timestamp: September 01, 2011, 03:05:35 am
content: Awesome ... I'll check those out. Thanks!

author: Simon
author_rank: Unknown
timestamp: September 01, 2011, 06:41:56 am
content: maybe search youtube and you might come across a regular blogger or two
Flying Spaghetti Monster T-Shirt - Page 1
Forum section: electronics / general

author: wosser
author_rank: Contributor
timestamp: August 31, 2011, 07:31:32 pm
content: I have recently been converted to the Church of the FSM. Pasta-lujah!Anyway I was playing around with my EDA software just now and my auto-router, left to it's own devices while I went to fetch a beer, managed to construct a layout that bears the image of the Noodly one Himself!http://www.redbubble.com/people/wossy/t-shirts/7694312-noodly-designEager to spread the good word I made a T-shirt of it.Arrrrrr!(ps, I'm not making any money on this design, this is just a bit of fun)

author: EEVblog
author_rank: Unknown
timestamp: August 31, 2011, 11:37:48 pm
content: Sweet, I like it!Dave.

author: firewalker
author_rank: Super Contributor
timestamp: August 31, 2011, 11:49:59 pm
content: LoL! Excellent.Alexander.
Office/lab space - Page 1
Forum section: electronics / general

author: gamozo
author_rank: Regular Contributor
timestamp: September 11, 2011, 07:16:51 pm
content: I've been looking around to get some office/lab space for my electronics/computers and I'm trying to figure out what would be most practical. I've been looking around for some commercial offices for rent, and it looks like 0-250sqft[~23m^2] are in the practical range. I'm just looking for what people consider reasonable for a electronics lab. I was thinking 150sqft [~14m^2] (12.25'x12.25' [3.7mx3.7m]).I have a scope, soldering iron, lots of books, 4 monitors (for my computer), a bunch of laptops (usually stored away), and a couple boxes and cabinets for my electronics. I do plan to grow to more and more of a bench, I've yet to grab some voltage sources, function generators, etc.So, what do you think is a good footprint for a lab?

author: Computeruser
author_rank: Regular Contributor
timestamp: September 11, 2011, 08:40:57 pm
content: My hobby shop (machine, general mechanical and electronic) is about 12 feet wide. It is about 28 feet long, but remember that includes machine and general mechancial as well as electronic). So I think you could fit a decent electronic shop in that space. If the cost to have 250 square feet is acceptable, you might get a bit more than 12x12.My counsel would be to draw it to scale and put your bench, cabinets and equipment on the drawing. I made 3 carts for myself to move instruments around, but they take space as well. So draw everything out at 12x12 and see how it fits.... C
22k+1k+1k = 24k - Page 1
Forum section: electronics / general

author: ndictu
author_rank: Regular Contributor
timestamp: August 30, 2011, 09:09:32 pm
content: Quotehttp://dangerousprototypes.com/forum/viewtopic.php?f=56&t=2457#p26310

author: dumpystig
author_rank: Contributor
timestamp: August 30, 2011, 09:18:01 pm
content: That's some pretty delicate solder work, doubt if my hands would be able to accomplish that now at my age.

author: Time
author_rank: Frequent Contributor
timestamp: August 30, 2011, 09:22:01 pm
content: congratulations.

author: Conrad Hoffman
author_rank: Super Contributor
timestamp: August 30, 2011, 10:11:22 pm
content: Good job- it's a pretty common technique. I won't tell you how many resisters I've seen in series, but it's way more than three! Stacking them in parallel is also common.

author: ndictu
author_rank: Regular Contributor
timestamp: August 30, 2011, 10:28:50 pm
content: Quote from: Time on August 30, 2011, 09:22:01 pmQuote from: Conrad Hoffman on August 30, 2011, 10:11:22 pmJust to be clear, I didn't make this, I'm linking the original poster under the quote.But yeah, really nice joints on the top. I just noticed there is a pair of these things, the obvious one in the middle, and another one to the left just before the cap.Looks like it's a PTH board, why are those two resistors SMD? It would be easier to join together the leads on an axial resistor then to make 90° bends with SMD.

author: Zero999
author_rank: Super Contributor
timestamp: August 30, 2011, 10:58:08 pm
content: 24k is a standard E24 value, available from all good component distributors.It seems crazy to use three resistors. You could use two 12k in series or as it's a gain of 240 you require, 120k or Rf and two 1k in parallel for Rin or 360k for RF (use two 180k in series if you can't get it) and 1k5 for Rin. I'm sure there are other combinations you could use.

author: EEVblog
author_rank: Unknown
timestamp: August 30, 2011, 11:11:14 pm
content: If only I had a dollar for every time I've had to do that!Dave.
1080p only RSS feed for the blog? - Page 1
Forum section: electronics / general

author: SlimShader
author_rank: Newbie
timestamp: August 31, 2011, 07:48:34 am
content: Hi all,I'm trying to configure Miro to download only the 1080p version of the eevblog from YouTube etc, but can't seem to get it - it only gets the 360p version for some reason - has anybody had any luck with this other than picking it manually on YouTube each time?Cheers for any advice in advance!Colin

author: PeterG
author_rank: Frequent Contributor
timestamp: August 31, 2011, 07:55:41 am
content: I don't know Miro, but i use Flashvideodownloader. It is a nice Firefox plugin and it downloads the eevblog vids in Full HD 1080.http://www.flashvideodownloader.org/Regards

author: SlimShader
author_rank: Newbie
timestamp: August 31, 2011, 08:31:52 am
content: thanks for the info - if I can't get Miro to download the 1080p version I'll give it a try - obviously I use Miro as a hub for all my streaming content though, so I'd prefer to get that one working if possible.
Digitech QM1440 - are instructions available online? - Page 1
Forum section: electronics / general

author: Seeker7
author_rank: Contributor
timestamp: August 29, 2011, 12:20:54 pm
content: Hi, I recently got given a Digitech QM1440 Automotive Analyzer DMM - I don't have a user guide for this, and am trying to find one online without success. Can anyone help please?Is there an online resource for instructions for Digitech's meters? I couldn't find a site for them anywhere, which I thought was surprising...Thanks for reading/your help!

author: PeterG
author_rank: Frequent Contributor
timestamp: August 29, 2011, 12:24:04 pm
content: Digitech is a brand sold by Jaycar Electronics. If you contact them, they will usually send you a copy of the manual for a small fee.Regards

author: Seeker7
author_rank: Contributor
timestamp: August 30, 2011, 05:55:47 am
content: I already have, but it appears that this model is being discontinued with Jaycar here... they are looking, but I'm not hopeful. I have a copy, but at four pages an A4 sheet and not in order, it's... a bit untidy. If I can get an online copy, great, I'm happy to pay a reasonable amount for a copy, just have to see what happens... thanks anyway though PeterG!
the next rigol and instek oscilloscope?! - Page 1
Forum section: electronics / general

author: SnakeBite
author_rank: Regular Contributor
timestamp: August 29, 2011, 07:28:24 pm
content: hello,while i searched for my first digital oscilloscope i ran into this OWON oscillscope with 100MHz bandwidth 1Gs/s 10M Record length (WOW!!) and 8" color screen for 450$ . can you tell me if it worth buying??http://www.ebay.com/itm/New-100M-OWON-Digital-Storage-Oscilloscope-SDS7102-1G-s-/280720232929?pt=BI_Oscilloscopes&hash=item415c3ad1e1Ido

author: A Hellene
author_rank: Frequent Contributor
timestamp: August 29, 2011, 07:58:48 pm
content: Hello, Ido,Actually, this specific DSO is being currentlyreviwedin this very blog by our fellow-EEVBlogger marmad, where some very experienced people in this department offer their invaluable views and opinions!Apart from that, my suggestion would be to ensure that whatever you purchase is fully supported against defects, because this specific industry (and I am not talking about OWON in particular) has a very poor Quality Control --thus the very low price of their products.I am telling you this because I happened to purchase adefective devicerecently and I am unable to make any claims since I got it from an unauthorized dealer.-George

author: SnakeBite
author_rank: Regular Contributor
timestamp: August 29, 2011, 08:11:27 pm
content: thanks for the heads-upyes , the video review is marmad's too.i'm waitting for part 3 - the taking apart part!!!Ido

author: A Hellene
author_rank: Frequent Contributor
timestamp: August 29, 2011, 08:51:14 pm
content: You are welcome!I am also waiting for the third part of the review. I am not sure though that we will see this specific device cracked wide open any time soon; not while it is within the warranty period...-George

author: Kozmyk
author_rank: Regular Contributor
timestamp: August 29, 2011, 10:14:06 pm
content: Good work, nice review.I had decided against an Owon DSO before I saw your review.In fact they appear better than I had expected; yet to see Part 3 of courseI went for something different again.I'll say more after it arrives ...
UK Deal - Magnifier Lamp - Page 1
Forum section: electronics / general

author: Kozmyk
author_rank: Regular Contributor
timestamp: August 27, 2011, 05:19:52 pm
content: CPC are doing these at a discounted deal at the moment £16.Usually go for £35-£40Even Farnell are asking twice as much.PRO ELEC|HT8093|LAMP MAGNIFIER 12W 4" LENS | CPCMine turned up today, useful bit of kit.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 27, 2011, 07:32:44 pm
content: No picture ..

author: Kozmyk
author_rank: Regular Contributor
timestamp: August 27, 2011, 09:09:50 pm
content: There isn't a pic is there.Here's the same lamphttp://uk.farnell.com/lightcraft/lc8093/magnifier-lamp-desk-12w-uk/dp/1825816

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: August 27, 2011, 10:47:00 pm
content: I've seen these at around £15 from several places - CPC are just discounting down to the same level as others.

author: Kozmyk
author_rank: Regular Contributor
timestamp: August 27, 2011, 11:06:47 pm
content: Quote from: mikeselectricstuff on August 27, 2011, 10:47:00 pmI'm sure you're right but when I was looking for one and searched "magnifying lamp 8093" all I got was £29 upwards from UK sellers and eBay alike.The market's fickle like that ain't it?

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 28, 2011, 02:33:41 am
content: Just had a look on the picture, personally I dislike this version.You must be extremely space limited, so to not choose the real thing with the long arm 360 degrees rotation and free placement.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: August 28, 2011, 09:41:06 am
content: A couple on ebayHereandHere

author: Psi
author_rank: Super Contributor
timestamp: August 28, 2011, 10:14:25 am
content: Be careful to cover up the lens from the sun when not in use.They will burn your house down. Seriously.Some of them don't have any lens cover.Papers on my desk started smouldering once, lucky i was there to stop any fire from starting.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 28, 2011, 11:31:11 pm
content: In any case be warned about one more practical problem.And this is the lamp it self, the 22W round version is very common to find almost everywhere,the smaller than that, its hard to find.Have this in mind, and get always a spare lamp if you select the smaller ones.
Google Plus... - Page 1
Forum section: electronics / general

author: Precisiontools
author_rank: Regular Contributor
timestamp: August 12, 2011, 01:42:30 am
content: Anyone here using Google Plus? Know how to get an invite?

author: Unknown
author_rank: Unknown
timestamp: August 12, 2011, 01:55:52 am
content: You could Google ithttps://plus.google.com/up/start/?continue=https://plus.google.com/&type=st&gpcaz=2879de16.

author: RCMR
author_rank: Frequent Contributor
timestamp: August 12, 2011, 02:13:27 am
content: Quote from: Precisiontools on August 12, 2011, 01:42:30 amSend me a message with your email address and I'll invite you.

author: Precisiontools
author_rank: Regular Contributor
timestamp: August 25, 2011, 05:34:52 am
content: PM Sent...weeks ago actually...

author: johnboxall
author_rank: Unknown
timestamp: August 25, 2011, 07:58:52 am
content: Google+ invites available for one and all - send me an email john at tronixstuff dot com

author: ElektroQuark
author_rank: Unknown
timestamp: August 25, 2011, 08:16:40 am
content: I have some of them too, PM your email freely.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 25, 2011, 02:43:29 pm
content: Google touches personal data more aggressively than any other web mechanism,I prefer to not participate or keep a distance from it.

author: ivan747
author_rank: Super Contributor
timestamp: August 25, 2011, 09:08:32 pm
content: I can invite you, if you want.

author: Precisiontools
author_rank: Regular Contributor
timestamp: August 26, 2011, 04:16:03 am
content: Thanks for all the offers people...I choose to participate...

author: Unknown
author_rank: Unknown
timestamp: August 26, 2011, 10:02:35 pm
content: Quote from: Kiriakos-GR on August 25, 2011, 02:43:29 pmEver heard of Facebook?

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 26, 2011, 11:39:55 pm
content: Quote from: alm on August 26, 2011, 10:02:35 pmLOL.. I do not hide my age or the pictures of my DMM ...
ST decided to kill all their datasheet links - Page 1
Forum section: electronics / general

author: ivan747
author_rank: Super Contributor
timestamp: August 26, 2011, 02:33:18 am
content: It seems ST decided to have a new site. Now every single link I click either in Eagle, Google or anywhere else is broken. Why can't they just make a symbolic link and have everything working perfectly as TI does? And their datasheets are named after their code and not by the part / family name. Now I can't even Google for a current LD1117 datasheet because all I find is nasty scanned copies from 1998 or something like that on a bloated site full of adds and links to the AXX-something variations.Now their links are twice as long, guys!Well done, ST, you managed to piss off everyone who bookmarked YOUR parts.

author: EEVblog
author_rank: Unknown
timestamp: August 26, 2011, 06:01:03 am
content: Links on Digikey still seem to work.Dave.

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: August 26, 2011, 09:19:32 am
content: http://www.st.com/internet/com/home/home.jspIf this is their new site, I have to say, it's pretty piss poor. JSP, pop-up windows, Flash... everything a site shouldnotbe.Their part search seems to work only if you switch into Flash mode... and clicking on an item in the search result does not even work.

author: ivan747
author_rank: Super Contributor
timestamp: August 26, 2011, 11:07:06 am
content: Quote from: EEVblog on August 26, 2011, 06:01:03 amThey probably sent the new links to the distributors, but the google index is still messed up and the links people left on forums are all broken. On Eagle, the links in the description box are all broken and I bet the guys at Eagle will take a while to update them.Here's an old style link:http://www.st.com/stonline/books/pdf/docs/2572.pdfThis appeared 5th on Google.

author: Neilm
author_rank: Super Contributor
timestamp: August 26, 2011, 06:41:38 pm
content: Quote from: AntiProtonBoy on August 26, 2011, 09:19:32 amThey have obviously got some kid in who was able to fast talk them into using all the bells and whistles he could.They have even hidden or deleted obsolete components - no data at all, not even an acknowledgement that it existed in the first place. I was trying to find an equivalent to a FET they had discontinued and could not even find the datasheet for the original device using the search on the website.I ended up using a Fairchild device as I couldn't be bothered having to wait for the ST website.Neil
Claude Paillard makes his own triode vacuum tubes. Amazing! - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: August 27, 2011, 11:58:43 am
content: Greetings EEVBees:--I searched the forum and could not find any sign of this being posted previously, I apologize if it was.--Ham operator Claude Paillard (F90E) makes make his own lampes anciennes for his audiophile and ham equipment. This French gentleman is a truly amazing craftsman. He also built the vacuum pump and some of the other equipment you will see in the video.--The tune being played is "The Man I Love" by George and Ira Gershwin, from the 1927 Broadway Musical, Strike Up the Band. I do not know who the piano player is, but would like to. When our cat had kittens we named the little tom cat Liberace because he was the pianist. Best RegardsClear Ether

author: Jon Chandler
author_rank: Frequent Contributor
timestamp: August 27, 2011, 04:25:41 pm
content: It's amazing to watch this guy in action and what he does with a Swiss army knife! I've watched this many times on YouTube.I love the version ofThe Man I Loveused in the video. Thanks to Spotify, I listened to many (and I mean many!) versions and found several similar versions. This piece really doesn't benefit from any efforts to jazz it up - simple is best. My favorite piano version is by Eddie Heywood, similar but not exactly the same.These all kind of blend together after a while, but similar versions are done by thse artists:Ivar Anton Waagaard (this may be "the one")Paolo AlderighiJoel HastingsChuck FoldsMichael PelleraThelonius MonkOscar Peterson (Oscar Peterson plays the Gershwin Songbook)

author: SgtRock
author_rank: Unknown
timestamp: August 27, 2011, 05:10:49 pm
content: Dear Jon:--I have also listened to many of the recordings you named. I highly recommend the version by Jazz Great Art Tatum. Tatum as usual takes a highly idiosyncratic approach, but does not lose the spirit of the tune. Best RegardsClear Ether

author: IanB
author_rank: Super Contributor
timestamp: August 27, 2011, 06:25:04 pm
content: Quote from: SgtRock on August 27, 2011, 11:58:43 amYes, Claude's work is amazing. I posted a link previously inthis thread, but it didn't generate any comment. I suppose most people know about it already.
DMM brands on Twitter ?   - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 21, 2011, 08:04:40 pm
content: I have create my Twitter account for about two weeks.Currently I am following Dave - Agilent - Fluke , and I wonder about the other brands.I an searching about the UNI-T , but I can not find anything.If you have company links to share, please do so.

author: w2aew
author_rank: Super Contributor
timestamp: August 21, 2011, 08:46:15 pm
content: You can also follow @tektronix, and even me, @AlanAtTek.

author: EEVblog
author_rank: Unknown
timestamp: August 22, 2011, 07:42:21 am
content: planetextechAmprobe (zero tweets!)bkprecisionDave.
Which type of resistor used in this circuit? - Page 1
Forum section: electronics / general

author: onemilimeter
author_rank: Frequent Contributor
timestamp: August 20, 2011, 11:45:03 pm
content: LTA100P/SP1 is a current transducer. It is configured to give a secondary output current as shown in attached figure below. Part of the hardware circuit is also shown on the right of the figure below. Clearly, the Rmeas is 25 ohm and it is implemented by paralleling four 100 ohm resistors. What type of the resistors used to form the Rmeas?Cheers.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 21, 2011, 12:08:11 am
content: I have the feeling that those are made by Vishay Dale.Type ? not wire because the accuracy can not be that high.

author: lowimpedance
author_rank: Super Contributor
timestamp: August 21, 2011, 12:38:00 am
content: They are 0.1% rc55 type (look in RS Farnell etc) , quite a few manufactures of these. Needed in precision ccts like filters inst. amps etc.Come in many 'unusual' values.John

author: Zero999
author_rank: Super Contributor
timestamp: August 21, 2011, 05:37:26 pm
content: Quote from: lowimpedance on August 21, 2011, 12:38:00 amThey're typically found in E96 values and possibly E24 too. The usual cheap 5% tolerance resistors are typically only found in E24 values as well as special values such as 50 Ohm and 4 Ohm, 8 Ohm which are used as RF and audio dummy loads.E96 ( 1%): 100 121 147 178 215 261 316 383 464 562 681 825102 124 150 182 221 267 324 392 475 576 698 845105 127 154 187 226 274 332 402 487 590 715 866107 130 158 191 232 280 340 412 499 604 732 887110 133 162 196 237 287 348 422 511 619 750 909113 137 165 200 243 294 357 432 523 634 768 931115 140 169 205 249 301 365 442 536 649 787 953118 143 174 210 255 309 374 453 549 665 806 976http://en.wikipedia.org/wiki/E96#E_series

author: Unknown
author_rank: Unknown
timestamp: August 21, 2011, 06:25:11 pm
content: Making 5% resistors in E96 is mostly an exercise in statistics. Unless you're measuring a large number of samples, you wouldn't be able to tell whether they were rounded to the nearest E24 value.
Do you belong at the fun club of Jean Michel Jarre ?  - Page 1
Forum section: electronics / general

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 20, 2011, 05:08:40 pm
content: At 1980 my own father an freelancer cars electrician, with not knowledge of any foreign language, and with some very basic education,as at the year 1980 he was at his 40, he did found as very interesting the music of Jean Michel Jarre,and he even got the double case with the cassette tapes of the Equinoxe 4.Even today at 2011 that is 31 years later, I still found the Equinoxe 4, as fresh and alive sound,and it makes me feel like to was a floating electron.Just add the link of your own favorite title of Jean Michel Jarre music.Oradd the link of your most favorite songthat it was not madein your country ( Just one choice for every EEV member )Lets have some Fun ..

author: SgtRock
author_rank: Unknown
timestamp: August 20, 2011, 05:33:40 pm
content: Django Reinhardt--Probably the greatest guitar player who ever lived. Notice his left and is crippled, and he only has the use of the first two fingers.

author: Balaur
author_rank: Unknown
timestamp: August 20, 2011, 05:34:51 pm
content: I was (and still am) a huge J.M. Jarre fan. One of my favorite songs is Révolutions, Révolutions:I absolutely love classic "electronic" music. I find Vangelis' (Evangelos Odysseas Papathanassiou) music to be a timeless chef d'oeuvre: Chariots of Fire, Alpha, Metallic Rain, Will of the Wind, The city, and many more.I always get goose bumps when I hear Carl Sagan and Vangelis' themes on Cosmos intro:or on the "Pale Blue Dot" speech:Quote from: Carl Sagan

author: KJ6EAD
author_rank: Contributor
timestamp: August 20, 2011, 08:41:43 pm
content: Kiriakos hometown version?

author: Kozmyk
author_rank: Regular Contributor
timestamp: August 20, 2011, 10:04:36 pm
content: My favourite song of the electronic genre is "So Long Ago So Clear" by Vangelis and Jon Anderson (of Yes):from the album "Heaven and Hell"My favourite electronic album is "Phaedra" by Tangerine Dream:Also "Going For The One" by Yes, particularly "Awaken"Part 1Part 2Favourite piece music of all time "Portrait of Tracy" by Jaco PastoriusMore recently, only 20 years ago ...Also Aphex Twin stuff

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 20, 2011, 10:15:51 pm
content: Quote from: KJ6EAD on August 20, 2011, 08:41:43 pmTrue true ...By the way any member can edit and change his member name at any time.You have such a good taste in music, why not and one more earthy name.

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: August 21, 2011, 12:29:40 am
content: Quote from: Kozmyk on August 20, 2011, 10:04:36 pmMy vote goes to the Little Fluffy Clouds

author: tekfan
author_rank: Frequent Contributor
timestamp: August 21, 2011, 02:20:36 am
content: Undoubtedly the king of electromechanical instruments: the Hammond organJimmy Smith really takes of at 1:20Quote from: Kozmyk on August 20, 2011, 10:04:36 pmDon't forget about Herbie Hancock on the Fender Rhodes and Clavinet on that album:Also don't forget Wendy/Walter Carlos with the Switched on Bach Moog thing
TIME MACHINE  TOO COOL NOT TO SHARE - Page 1
Forum section: electronics / general

author: bearman
author_rank: Regular Contributor
timestamp: August 23, 2011, 05:41:00 am
content: I am a car nut and photographer along with electronics junkie. I was at a collector car show this past weekend and saw and photographed the greatest thing.A father and son team built a replica of a Delorean time machine. Pix attached I hope. Thought I would share here since Back to the Future is a regular topic here.Enjoy.B

author: PeterG
author_rank: Frequent Contributor
timestamp: August 23, 2011, 10:13:28 am
content: Seriously cool stuff...... great work...Regards

author: EEVblog
author_rank: Unknown
timestamp: August 23, 2011, 11:23:25 am
content: Freak'n Awesome!Only if I had the time and $$$$$Dave.

author: bearman
author_rank: Regular Contributor
timestamp: August 23, 2011, 11:58:06 am
content: DaveI talked with the owners and they spent 6 years modifying the Delorean. They actually rent this car out for events.The owners are in the middle of making an electric Delorean also. They already have a mostly working prototype.View their web site for details. There is a link to the Electric Delorean site within the main site.www.TimeMachineOption.comI mentioned your Vblog and the son looked it up right there at the show and they were impressed with your Outatime license plate and your lab gear in the background of your vids.B

author: FreeThinker
author_rank: Frequent Contributor
timestamp: August 23, 2011, 01:38:06 pm
content: Ok, I just want to know where they got the Flux capacitors from, been looking for some for yonks and every one is freshout.
Proton Boron 11 Fusion - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: August 20, 2011, 01:09:37 pm
content: Greeting EEVBees:--If this turns out to work, energy will be very very cheap.--Wiki has a very good article on the Polywell Fusion Project athttp://en.wikipedia.org/wiki/Polywell--Prominently mentioned in the article are Philo Farnsworth and Robert Bussard. Philo Farnsworth you may recall is credited with the invention of Electronic Television. As I boy I saw Farnsworth on the "I've Got a Secret" television show. You can see that show here:xttp://www.youtube.com/watch?v=pKM4MNrB25o--Farnsworth also invented a machine called the Farnsworth Fusor. High School Physics labs still build this table top machine today to demonstrate fusion. It can be built for less than $500 if you do some scrounging.--Robert Bussard did pioneering work in nuclear rocket propulsion. He also conceived of the Bussard Ram Jet. A so far "Science Fiction" Star-ship drive used prominently in Larry Niven's Ring World series.--Dr. Bussard improved upon Farnsworth's Fusor to produce the Polywell Fusion Machine. The hope is that this very small machine can produce huge amounts of energy by fusing Boron 11 nuclei with protons (hydrogen nuclei). These nuclei are subject to electrostatic pressure inside a magnetic cage. The results of the fusion of these two nuclei are three helium nuclei or alpha particles which are then decelerated and the energy collected as current. Thomas Lingon inherited the Polywell project after the death of Dr. Bussard. You can see part 1 of his 7 part talk on the Polywell here:xttp://www.youtube.com/watch?v=pKM4MNrB25o--Of course no one knows if this will turn out to be practical or not. But it is being persued under a Grant from the department of the Navy. This is not a perpetual motion scam. Best RegardsClear Ether

author: djsb
author_rank: Super Contributor
timestamp: August 20, 2011, 05:33:26 pm
content: Interesting stuff. I will be following this closely. I've found this forumhttp://www.talk-polywell.org/bb/index.php?sid=2c55c8816932ccb8799a305f82ce0e52and other linkshttp://www.strout.net/info/science/polywell/index.htmlHope they will answer some of my questions.David.

author: SgtRock
author_rank: Unknown
timestamp: August 20, 2011, 05:35:50 pm
content: Dear David:--Yes, that is the main one, I meant to include it.Best RegardsClear Ether
FREE pdf from Keithley on low resistance measurement - Page 1
Forum section: electronics / general

author: FreeThinker
author_rank: Frequent Contributor
timestamp: August 19, 2011, 03:55:10 pm
content: http://www.elektor.com/news/free-e-handbook-on-low-voltage-low-resistance.1923623.lynkx?utm_source=UK&utm_medium=email&utm_campaign=newsLatest email from elektor has this link, may be of interest. Get it while its hot!

author: Unknown
author_rank: Unknown
timestamp: August 19, 2011, 04:04:22 pm
content: Hey thanks a bunch! I'll put this to good use.
Any suggestions for a data logger? - Page 1
Forum section: electronics / general

author: Balaur
author_rank: Unknown
timestamp: August 18, 2011, 12:21:53 pm
content: Hello all,Collecting a set of physical data could be really interesting and helpful for a lot of activities and I was thinking of building/buying a data logger. Thus, I would like to ask your opinion, any hints and pointers.I'm familiar (in the sense that I've used & built custom solutions for my work) with computer-supported data acquisition, but this time I would like an autonomous data logger with storage & power for my hobbies (i.e. not too expensive).The planned applications could be the logging of:- solar panel output (voltage/current)- power consumption- temperature values- light- UART dataThe ideal solution could be a nice device with a few (up to 4?) analog inputs, sampling intervals from 1 sec to 1 hour and storage and power of up to a few days of continuous operation, including RTC time stamping. Relevant sensors (temperature, current, light) could be built and connected to the analog inputs.I'm aware of thehttp://www.sparkfun.com/products/10216Logomatic data logger. While not too bad, some changes are required: modify the maximal sampling interval of 1 second (too fast), provide an enclosure, etc.I'm perfectly able to build my own device, but I would really like to spend my free time on the other stuff.Other commercial products seems to be very limited (1 analog input) for low cost devices or too expensive for my taste.If you have other suggestions, I would be happy to hear them.Thank you,Dan

author: Unknown
author_rank: Unknown
timestamp: August 18, 2011, 01:28:30 pm
content: I haven't checked this exactly meets your specs, but it may be of interest.http://www.altronics.com.au/index.asp?area=item&id=K2572

author: Balaur
author_rank: Unknown
timestamp: August 18, 2011, 01:47:08 pm
content: Quote from: Uncle Vernon on August 18, 2011, 01:28:30 pmHey, it looks quite promising. A bit too recent though and with some issues to correct, according to the this forumhttp://www.thebackshed.com/forum/forum_posts.asp?TID=3611but definitely interesting.Thanks!

author: Unknown
author_rank: Unknown
timestamp: August 18, 2011, 01:51:30 pm
content: Here is a little software used to display the data.http://www.windmillsoft.com/daqshop/rs232-modbus.html#aWM7COMThe trial version is free.http://www.windmillsoft.com/daqshop/licence.html#aWMLicenc

author: IanB
author_rank: Super Contributor
timestamp: August 18, 2011, 03:31:48 pm
content: I came across this recently, that looks interesting:http://www.ladyada.net/make/logshield/http://www.adafruit.com/products/243

author: Balaur
author_rank: Unknown
timestamp: August 18, 2011, 04:31:02 pm
content: Quote from: IanB on August 18, 2011, 03:31:48 pmThank you for the suggestion. Cheaper and more straightforward than the Logomatic. I can definitely see a working scenario for this.Quote from: HAL-42b on August 18, 2011, 01:51:30 pmCould be very useful. I asked for a trial license. Thanks!Cheers,Dan