hybridfree/eevblog-posts huggingface dataset:
Metric Rack Mount Screws - Page 1
Forum section: electronics / general

author: AF6LJ
author_rank: Unknown
timestamp: November 03, 2016, 10:30:49 pm
content: You would think I would know the answer to this, but I don't...We had to move our repeater system from our supplied rack cabinet to the equipment bay of our host...Thankfully there were plenty of screws already in the rails for us tp use.However I need to know since I didn't bring my screw gage with me...What is the size and thread pitch of metric rack mounting screws

author: ZeTeX
author_rank: Frequent Contributor
timestamp: November 03, 2016, 10:35:36 pm
content: https://www.server-racks.com/rack-screws-10-32-12-24-m6.html

author: AF6LJ
author_rank: Unknown
timestamp: November 03, 2016, 10:51:32 pm
content: Thank You...

author: Monkeh
author_rank: Super Contributor
timestamp: November 04, 2016, 01:26:17 am
content: M5 or M6 (easy to measure - M6 is almost 1/4", M5 is noticably less), standard (coarse) pitch (0.8mm or 1mm respectively).I've intentionally never used anything except M6, even in the states.What that site is babbling about 0.1mm for I have no idea.

author: AF6LJ
author_rank: Unknown
timestamp: November 04, 2016, 02:15:09 pm
content: Thanks...

author: rob77
author_rank: Super Contributor
timestamp: November 04, 2016, 02:40:21 pm
content: from that website...Quotethat's a pure nonsense - that would mean 1 turn per 10mmthat's too steep even for child toysthe correct marking is M6 x 1mm

author: Delta
author_rank: Super Contributor
timestamp: November 04, 2016, 02:56:08 pm
content: Quote from: rob77 on November 04, 2016, 02:40:21 pmCorrect. Whilst Imperial thread sizes use TPI (threads per inch), metric sizes DO NOT use threads per XXX, but the thread pitch (distance between threads). It can get confusing sometimes!

author: SeanB
author_rank: Super Contributor
timestamp: November 04, 2016, 08:19:05 pm
content: Yes, normally a M6x1mm thread machine screw with pan head, with a screw length of typically 20mm, covers pretty much all rack mounting equipment. and will fit the captive nuts perfectly.Of course with old racks made up from reused parts from other racks you will find the odd cage nut that is a US size, and I normally fix those by replacing the nut with a metric one, or if I have none left run a M6 tap through the nut to make a somewhat skanky M6 thread for the screw. I do have a small assortment of imperial taps and dies, but those are generally not used much, unless I am making a bespoke hole for a thread I will also make, and the size is right for them, or for some US made equipment that uses them, though there I also have a few recoil sets ( bought cheap as well, as 30 year old stock off the dusty shelf) to handle the common sizes.
This Thing is Trash (litter-ally) - Page 1
Forum section: electronics / general

author: Cyberdragon
author_rank: Super Contributor
timestamp: November 04, 2016, 04:18:57 am
content: We have another entry in the ever growing list of utterly rediculous and stupid inventions.This has one use, for emergencies, and that's it. NOTE: product thoughts only, this guy is a bit of a nut so beware heavy sarcasm.

author: Halcyon
author_rank: Unknown
timestamp: November 04, 2016, 07:37:27 am
content: Yep, useless product.I also think the guy in the video needs to have his dosage of Methylphenidate reviewed because it doesn't seem to be working ;-)

author: Muttley Snickers
author_rank: Unknown
timestamp: November 04, 2016, 07:45:32 am
content: Yes, well he appears to be a nut that has received over 160,000 views in one day on that video alone and has over 1.5 million subscribers. Acting like a complete fool was once frowned upon but nowadays people other than clowns are obviously getting paid for it.After seeing this video I am considering swapping out my oil skin coat for a straight jacket.

author: Halcyon
author_rank: Unknown
timestamp: November 04, 2016, 07:56:51 am
content: Quote from: Muttley Snickers on November 04, 2016, 07:45:32 amI think I'll stick with intelligent videos. Even though Dave has a little over 388k subscribers, it goes to show, quality over quantity wins every time ;-)Although I do likeAshens'videos. He has a brilliant way of articulating things.

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: November 04, 2016, 08:29:31 am
content: Quote from: Halcyon on November 04, 2016, 07:37:27 amGive him speed. Would be hilarious to watch him peak then fall apart.
NASA Betting on Space Lasers for Superfast Communication - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 31, 2016, 11:08:42 pm
content: http://www.space.com/34528-nasa-lasers-superfast-spacecraft-communications.html

author: Brumby
author_rank: Unknown
timestamp: November 01, 2016, 01:42:23 am
content: Ah ... Higher data rate.Had me wondering for a second.

author: Vgkid
author_rank: Super Contributor
timestamp: November 01, 2016, 04:20:18 am
content: Neat.All we need are some space sharks...

author: BravoV
author_rank: Super Contributor
timestamp: November 01, 2016, 06:08:04 am
content: Will these probably inspire someone ... someday ... to sue Nasa because they claim that it damaged their eyes when seeing the sky ?..<duck n run away>...

author: timb
author_rank: Super Contributor
timestamp: November 01, 2016, 07:06:04 am
content: So, do we have to string fiber optic cable between satellites, or...?

author: Red Squirrel
author_rank: Super Contributor
timestamp: November 02, 2016, 11:55:48 pm
content: Wireless fibre optic.

author: GreyWoolfe
author_rank: Unknown
timestamp: November 03, 2016, 04:53:39 pm
content: Quote from: Red Squirrel on November 02, 2016, 11:55:48 pmSoon to be picked up by the audiophoolery crowd, if it hasn't already.
IPC training necessity - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: November 03, 2016, 12:48:05 pm
content: Has anyone here received IPC manual rework training? I was at a PCB show yesterday, and a local IPC training company tried to sell be their IPC 7711/7721 training service.I can already solder chip passives down to 0402, 0201 if lucky, QFN/DFN down to 0.4mm pitch, 0.8mm pitch BGA and 0.5mm pitch BGA chips up to 8mm*8mm.I can drag solder any leaded packages, I can also solder any through hole packages including many high thermal capacity connectors. I can tin all sorts of copper wires, even those made of shitty quality phosphorous contaminated recycled socket contacts.So the question is, do I need a $700+ IPC class to producereliablesolder joints?*PS: my professor really cares about doing things properly, so if this is really necessary, I can persuade him to pay for me, but I need to justify my one week of time at end of semester.
playstation eye - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: November 02, 2016, 09:58:13 pm
content: seen some videos online of the playstation eye and it looks great for a web camera used for less then $9nzd including shipping from the us to nzyou can pick one up not badand on wikipedia it says it does 640×480@75 fps really? for a cheap camera that is great as 640x480 is fine for me and can do 320×240@187 fps320x240 is a little low but at 187fps it be ok for some slow motion video 187fps is not going to be the best for slow motion but its better then 60fps slow motionare the fps wikipedia say correct? and has anybody ever used this camera before as a webcam? seem like the best option for me as i don't need an hd webcam and will only be using the camera lets say once a week or month or so

author: Bud
author_rank: Super Contributor
timestamp: November 02, 2016, 10:44:51 pm
content: I have it working with Skype on win7, it is a great camera. I believe i installed a 3rd party driver.

author: m98
author_rank: Frequent Contributor
timestamp: November 03, 2016, 11:54:30 am
content: It does work quite well in its specs. Used it once for a low-budget computer vision application, although the 3rd party driver, especially the SDK was a real PITA to get working, and did never really work reliably. Maybe they've fixed that since 2013.https://codelaboratories.com/products/
The Chicago Cubs win the World Series! - Page 1
Forum section: electronics / general

author: Tomorokoshi
author_rank: Super Contributor
timestamp: November 03, 2016, 05:03:04 am
content: Back to the Future was off by only one year! Or less than 1%! Or about -40dB centuries!

author: JoeN
author_rank: Frequent Contributor
timestamp: November 03, 2016, 05:07:05 am
content: Quote from: Tomorokoshi on November 03, 2016, 05:03:04 amI was just watching that. They almost gave me a heart attack. I wonder if anyone else here cares. I always have to keep in mind that there is an international audience here and not everyone cares about baseball or American football. But they seem to care about old HP and Intel and that is enough for me.

author: Ampera
author_rank: Super Contributor
timestamp: November 03, 2016, 05:13:10 am
content: Quote from: JoeN on November 03, 2016, 05:07:05 amEven though this is very off topic, would love to see this stay here. I watched it personally and have a PVR recording, that was one of the best games of anything I have ever seen.

author: zapta
author_rank: Super Contributor
timestamp: November 03, 2016, 05:24:09 am
content: Quote from: Tomorokoshi on November 03, 2016, 05:03:04 amWhich reminds this Nate Silver's forecasthttp://fivethirtyeight.com/features/the-cubs-have-a-smaller-chance-of-winning-than-trump-does/and this lady's bucket listLife is good.

author: JoeN
author_rank: Frequent Contributor
timestamp: November 03, 2016, 05:25:50 am
content: Quote from: TwoOfFive on November 03, 2016, 05:13:10 amMaybe the thread will be saved by the Back To The Future reference. That was a good tactical move by Tomorokoshi.

author: Skimask
author_rank: Super Contributor
timestamp: November 03, 2016, 05:51:02 am
content: Quote from: TwoOfFive on November 03, 2016, 05:13:10 amI don't know if it's off topic. The topic is "General Chat".That was one helluva game by any standard...one helluva series, and I'm not one to watch a complete game of anything. Last full game of baseball I watched was Game 7 of the 1987 World Series...from behind 3rd base...about 20 rows back...with my Dad.Both teams played great ball, offense and defense. Could've gone either way.

author: Vgkid
author_rank: Super Contributor
timestamp: November 03, 2016, 06:22:57 am
content: That was an exciting final game.

author: JoeN
author_rank: Frequent Contributor
timestamp: November 03, 2016, 06:26:58 am
content: Quote from: Skimask on November 03, 2016, 05:51:02 amThreads get locked from time to time even in general chat when there is no relationship whatsoever to science or technology. That's why making a reference to Back To The Future is so important.

author: george graves
author_rank: Super Contributor
timestamp: November 03, 2016, 06:51:05 am
content: I saw that other thread that was locked cause it was off topic. Aren't Dave's political/religious rants off topic too? Ahahaha!Anyways....Here is your BTTF link as to be not off topic.

author: Halcyon
author_rank: Unknown
timestamp: November 03, 2016, 07:07:50 am
content: Ahhh Back to the Future. Over 15 years old and still one of the greatest movies ever made.
Enclosed soldering iron holder? - Page 1
Forum section: electronics / general

author: george graves
author_rank: Super Contributor
timestamp: November 03, 2016, 06:49:08 am
content: I noticed that some soldering iron holders/stands have the hot end enclosed when it's on the stand.I assume it's to reduce the time the heater is on, extending the life of the heating element? Or maybe reduce power?Id there any advantage to doing something like that on something like a Weller wesd51?

author: notsob
author_rank: Frequent Contributor
timestamp: November 03, 2016, 07:05:26 am
content: They later stands for metcal and copies have magnets, which put the tip into a "sleep" mode [reduced temperature] to extend tip life
#Rant: Neosid - a company with an ultra fail website! - Page 1
Forum section: electronics / general

author: Yansi
author_rank: Super Contributor
timestamp: November 05, 2016, 12:44:05 am
content: Rant time this time!Today, I came across some Neosid helix filter part that I wanted to find a spec for. Google hasn't revealed anything, so I have proceeded to look for it on the manufacturers webpage directly. But fucking hell?! Their website is a nightmare!Neither their page contains a search engine (please correct me if I am wrong), nor can I contact them, because their web page has the emails encrypted with some f*cking javascript bullshit: The script does nothing in Opera browser and in Firefox, it does not display me the mail address, just wants me to create a f*cking google or yahoo mail account first that I don't have a tiny bit of interest owning.But wait, that's not all! Then I have found if you switch the page to English (I understand basic German, so haven't bothered switching the language on the site until that moment) that an extra sentence appears down there:"Looking for sales representative in Sweden. Please contact yilmaz.benzer neosid.de". Whoa la, finally we have one mail!Then I wanted to copy the mail address to clipboard (beacause the "mailto" link is still encrypted using the nonfunctional javascript crap) and... wait what! The standard blue bar for selecting a part of text is not shown. The page even tampers with such thing, making only the text to change color to blue and guess what, the email address is already printed in blue. That was the last bit that got me really pissed off!So what do you think about that? I think this is the most terrible web presentation of an electronics company I have come across in the last years (except some Chinese ones).

author: sleemanj
author_rank: Super Contributor
timestamp: November 05, 2016, 01:53:34 am
content: Decoding the silly javascript...Allgemein mailto:info@neosid.deVertrieb mailto:sales@neosid.deEntwicklung mailto:eugen.swoboda@neosid.deEinkauf mailto:annette.stammwitz@neosid.deQualitätssicherung mailto:olaf.schoen@neosid.deyes the website is not very good.NB: You can use google to search limited to a site, eghttps://www.google.co.nz/?q=site:neosid.de+SM-PIC1004H

author: Yansi
author_rank: Super Contributor
timestamp: November 05, 2016, 02:00:13 am
content: Sorry, haven't been in a mood to look for mails in any kind of javascript, so haven't bothered to open the source code at all. But thanks for decoding! I might still tell them to patch their shit up!
How come with all the semiconductor sector M&A no one has snatched up Zilog yet? - Page 1
Forum section: electronics / general

author: JoeN
author_rank: Frequent Contributor
timestamp: November 03, 2016, 01:06:25 am
content: Someone should pity-acquire them. They have to be feeling left out.

author: ataradov
author_rank: Super Contributor
timestamp: November 03, 2016, 01:21:51 am
content: They are already a subsidiary of IXYS.

author: EEVblog
author_rank: Unknown
timestamp: November 03, 2016, 01:23:31 am
content: Zilog are still around?

author: Ampera
author_rank: Super Contributor
timestamp: November 03, 2016, 03:34:54 am
content: Quote from: EEVblog on November 03, 2016, 01:23:31 amNot only is Zilog still around, they still produce the Z80 which is still used.

author: amitchell
author_rank: Regular Contributor
timestamp: November 03, 2016, 03:40:06 am
content: According to Wikipedia they have been bleeding cash for quite some time. Maybe nobody wants them.

author: JoeN
author_rank: Frequent Contributor
timestamp: November 03, 2016, 05:05:44 am
content: Quote from: ataradov on November 03, 2016, 01:21:51 amI know. But if I had titled the thread "How come with all the semiconductor sector M&A no one has snatched up IXYS yet?" it wouldn't have been as hilarious.
I can't seem to figure out what sort of memory this takes. [CLOSED] - Page 1
Forum section: electronics / general

author: Ampera
author_rank: Super Contributor
timestamp: October 31, 2016, 05:18:15 pm
content: http://www.ebay.com/itm/262694109159Working on a VLB based 80486 machine (don't hit me), and I found this graphics card that seems good, running an S3 Chipset on a Diamond board.http://www.vgamuseum.info/index.php/component/k2/item/567-diamond-stealth-64-dram-vlb-s3-vision864I found this similar card on this website claiming it's something called FPM, but searching didn't come up with anything.It's probably something really simple that I am totally missing, but I never used VLB card nor 80486's (I did have a PS/1 but I busted it sadly)

author: bktemp
author_rank: Super Contributor
timestamp: October 31, 2016, 05:28:45 pm
content: FPM = fast page modeThe KM416C256 used on the board are 256k x16bit fast page mode DRAMs.

author: Ampera
author_rank: Super Contributor
timestamp: October 31, 2016, 05:40:56 pm
content: Quote from: bktemp on October 31, 2016, 05:28:45 pmMany thanks! I foundhttp://www.ebay.com/itm/131332820929and I plan to get a couple for 2MB of video memory.

author: bktemp
author_rank: Super Contributor
timestamp: October 31, 2016, 08:28:07 pm
content: On the picture of the graphics card the memory is -6 speedgrade (60ns). The ones on the ebay link have -7 (70ns). So it may be too slow.

author: Ampera
author_rank: Super Contributor
timestamp: October 31, 2016, 08:37:14 pm
content: http://www.ebay.com/itm/172225519657This good?Didn't notice that, thanks for letting me know.

author: bktemp
author_rank: Super Contributor
timestamp: November 01, 2016, 06:23:46 am
content: That one seem to match the ones installed on the board.
Why are common-anode 7-segment LED displays are far more common? - Page 1
Forum section: electronics / general

author: technix
author_rank: Super Contributor
timestamp: October 31, 2016, 06:26:18 pm
content: I was pondering this question for quite a while since my DIY multimeter project started. In my original design, the core chip was ICL7135, which requires external BCD to LED decoder and drivers. I went for ULN2003 as low-side digit switches and CD4511 for high-side display decoding, which calls for common-cathode displays. Then my numerous trips to the local electronics store turn out that it is far more common to use common-anode than common-cathode displays. Why?

author: Ian.M
author_rank: Super Contributor
timestamp: October 31, 2016, 07:12:30 pm
content: It may have something to do with the inferior performance of P-MOS or PNP devices (of equal area) compared to N-MOS or NPN ones. This tends to make most logic families better at sinking current than sourcing it. As the sinking driver for common anode displays only has to handle one segment at a time, this means you can for many applications get away with only high side anode drivers for each digit and use the superior sinking capability to drive the segment cathodes directly.

author: technix
author_rank: Super Contributor
timestamp: October 31, 2016, 07:46:37 pm
content: Quote from: Ian.M on October 31, 2016, 07:12:30 pmHowever when I browse TI's product catalog all LCD decoders there are intended for common-cathode, and there is no convenient driver array chips like ULN2003 for high-side switching.

author: bktemp
author_rank: Super Contributor
timestamp: October 31, 2016, 08:01:50 pm
content: Quote from: technix on October 31, 2016, 07:46:37 pmUDN2981Much more expensive, but otherwise identical highside driver.
How to bulk save or archive forum's messages ? - Page 1
Forum section: electronics / general

author: BravoV
author_rank: Super Contributor
timestamp: November 01, 2016, 06:38:28 am
content: Is there any easy method to save all or by certain selections on the PM messages either inbox and/or sent box, rather than have to click each them one by one and save manually ?Or even better a SMF add-on that Dave willing to install.To Dave, look at the bright side, 'hopefully' this will make users to clean their PM boxes to ease your storage, not much though compared to attachments.

author: ez24
author_rank: Super Contributor
timestamp: November 01, 2016, 07:31:07 pm
content: I believe I asked this a couple of years ago and the answer I got was use Evernote. Never did so I am interested in new ideas.I think some are using the "Thanked" feature to do this (not sure how). I gave up trying to organize things. Oh I have printed out a few, that is the only I can do it. If Evernote comes up again maybe I will look at it again.Hope someone has a better idea.
Transactional Analysis - Page 1
Forum section: electronics / general

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: October 29, 2016, 05:40:15 pm
content: Hi,I know it may sound off topic, but I wanted to know if you know a nice video or power point or PDF explaining this topic more easily for kids. I think it's a great subject to learn at early age, and it will certainly impact our way of selling our electronic products buy making them more useful for others.Thanks for any great idea!

author: m98
author_rank: Frequent Contributor
timestamp: October 29, 2016, 06:05:18 pm
content: There's some really weird shit out there...Just spend the last half hour trying to understand what transactional analysis even is, sorta got it, but how is this of any relevance for kids or product developers? Teach them some Analysis first, definitely more relevant.

author: edavid
author_rank: Super Contributor
timestamp: October 29, 2016, 06:16:36 pm
content: I feel sorry for Iranians if they have to go through all the pop psychology business fads of the last 50 years. Imagine when the Revolutionary Guards have to take the Myers Briggs test

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: October 31, 2016, 08:49:22 am
content: edavidThanks for your opinionthen What do you suggest for the new world?
MikroElectronika click boards -  anyone here making any ? - Page 1
Forum section: electronics / general

author: ez24
author_rank: Super Contributor
timestamp: October 31, 2016, 04:53:31 am
content: HiIs there anyone here making MikroElectronika click boards. They can be made as long as credit is given and "Click" is not used.http://www.mikroe.com/click/thanks

author: Ampera
author_rank: Super Contributor
timestamp: October 31, 2016, 05:21:45 am
content: I've never seen that. No I do not make or know anybody who makes them, but they look pretty expensive on that site.Do look pretty cool though!

author: ez24
author_rank: Super Contributor
timestamp: October 31, 2016, 05:49:43 am
content: Quote from: TwoOfFive on October 31, 2016, 05:21:45 amI should have said they are for educational use so they have their place in life. I like them because some coding can be learned (with the Microchip Curiosity boards) without wiring. Just an option that allows this.
Recommendations for buying from Japan - Page 1
Forum section: electronics / general

author: gnavigator1007
author_rank: Unknown
timestamp: November 01, 2016, 04:07:03 pm
content: I've been looking to order several items direct from Japan and was hoping someone here might be able to recommend a decent forwarding/proxy service. I'm looking for a service that accepts paypal and will allow me to both order direct from japanese sites and allow me to bid on japanese auctions. Would also like to hear of any negative experiences with these services. Thanks!

author: ez24
author_rank: Super Contributor
timestamp: November 01, 2016, 07:25:22 pm
content: Watch out for warranties. You will have to ship back to Japan and back to you and pay a lot of shipping charges. Probably not worth it unless the item is over $1000. I have lost a couple of items (a tape recorder by Panasonic and a headphone by Sony) because the warranty was only good in Japan and the cost of shipping both ways was too high. I would suggest use Amazon if available, it may save you money in the long run.Unless you get a DOA warranty (not likely).

author: saturation
author_rank: Super Contributor
timestamp: November 01, 2016, 10:48:08 pm
content: For Japanese auctions I use Rakuten.com but they rarely have T&M equipment. I also bought a number of things from Japanese sellers who sell on the US sites Amazon.com and eBay.com
The best desoldering station... - Page 1
Forum section: electronics / general

author: ondreji
author_rank: Contributor
timestamp: October 30, 2016, 12:14:44 pm
content: quick and efficient:(the first minute shows what's possible...)

author: AntiProtonBoy
author_rank: Frequent Contributor
timestamp: October 30, 2016, 12:48:59 pm
content: Man, he goes through a lot of effort sorting them out. I wonder how much time it takes, and whether it is worth doing it in terms of profit.

author: nctnico
author_rank: Super Contributor
timestamp: October 30, 2016, 01:27:00 pm
content: This must be the first time I've seen someone work on a PCB with a jack-hammer.

author: Brumby
author_rank: Unknown
timestamp: October 30, 2016, 01:51:02 pm
content: Quote from: nctnico on October 30, 2016, 01:27:00 pmDefinitely a first for me.My first reaction was WTF? Then as he describes what he's doing, it makes perfect sense.It did round out my day, though.

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: October 30, 2016, 02:55:48 pm
content: Throwing thinks away is not for me .Lots of reasoning got me into scrapping , being around surplus stores , lately ham radio related .Then getting into repair of ham gear , test gear - learning to repair , practicing soldering / desoldering - I would rather damage beyond repair a scrap mother-board , than my computer that I am wanting to fix .Then this stuff starts piling up , and others start calling you to pickup / move there stuff etc. - making money just as labor .In any kind of mining , most everything is collected as very small percentages - oz. per ton .I've done that too , no. California , the majority of gold is dust & slightly larger , nuggets is a very small part of the volume .The trick is to constantly find more efficient ways to process / work - in any type of work .And the really hard part is having space for all this , not just the scrapping , but there are lots of good working gear that piles up , and with limited space , trying to figure what to keep & what to do with it .THERE IS NEVER TOO MUCH STUFF , JUST NOT ENOUGH SPACEI've worked with guys that had 2 20 acre lots filled with almost anything you could imagine for government & utility auctions .
Is arrow a reputable place to buy electronics. - Page 1
Forum section: electronics / general

author: tolerl
author_rank: Newbie
timestamp: October 29, 2016, 05:13:46 am
content: I'm from Maldives (if you don't know its a very small island country in Indian ocean near India). So if i buy anything online shipping cost has always been a big problem and not lot of useful choices are available here given the size of the country.I would like buy a Rigol DS1054Z but with shipping it cost around $515 (cheapest with very slow shipping). But Arrow is having a promotion with free international shipping so if I buy from them I'll save around $150 with some 10% discount code plus free shipping but promotion seems to end after 2 days.So does anybody have any experience with them and are they a reputable place to buy. I don't want lose my my money end up with nothing.

author: Bud
author_rank: Super Contributor
timestamp: October 29, 2016, 05:56:40 am
content: It is a reputable place, with occasional quirks , same as with other industrial suppliers.

author: DTJ
author_rank: Super Contributor
timestamp: October 29, 2016, 06:07:13 am
content: +1,www.arrow.comare a large reputable supplier.

author: tolerl
author_rank: Newbie
timestamp: October 29, 2016, 06:19:23 am
content: Thanx

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 29, 2016, 02:13:45 pm
content: I always got the impression that they prefer customers with higher quantity needs (>thousands of parts per year). But that's for commercial needs. If the offer is good, then you'll get what you ordered.Tim

author: CraigHB
author_rank: Regular Contributor
timestamp: October 29, 2016, 02:19:59 pm
content: Arrow comes up a lot when doing parts searches from those part finder sites like FindChips. They always have good prices, but they seem to cater only to corporate wholesale purchases as do a couple of the other vendors that come up with those searches. They don't support the little guys like Mouser and Digikey. In any case if they're selling anything retail I would be surprised if they were not reliable.

author: tolerl
author_rank: Newbie
timestamp: October 29, 2016, 03:38:35 pm
content: It seems they do sell for individuals too.https://www.arrow.com/en/products/ds1054z/rigol-technologies-incWith a coupon I can bring price down to $320 and with no shipping charge is extremely nice. Shipping is with DHL. Its will be like more then $250 saving with this kind of shipping.Even with slower shipping cheapest I found is $513 shipping with USPS priority but it will take more than a month. Last time I ordered something with USPS priority shipping from US it took 2 months. Si its extremely good nice.Let's see what happens. I'll order it tonight.
High Tech Heroes Seymour Cray - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: October 28, 2016, 12:51:02 am
content: 123

author: Tom45
author_rank: Frequent Contributor
timestamp: October 28, 2016, 02:26:10 am
content: Thanks for finding that.Working with CDC computers in the 60s and 70s I had heard a lot about Seymour Cray but I had never seen him speaking. Definitely an engineer's engineer.

author: MattSR
author_rank: Regular Contributor
timestamp: October 28, 2016, 07:30:52 am
content: Excellent find! I've been doing as much research on Cray as possible lately, so the timing of your post could not be better!

author: German_EE
author_rank: Super Contributor
timestamp: October 28, 2016, 06:51:14 pm
content: Some more Cray linkshttp://www.spikynorman.net/(hit the Cray button)http://faqs.cs.uu.nl/na-dir/computer/system/cray/faq.htmlAnybody who can design a supercomputer with nothing but a pad of paper and a pencil is OK by me, the world needs more engineers like Cray.

author: Tom45
author_rank: Frequent Contributor
timestamp: October 29, 2016, 03:21:25 am
content: The last video has this great photo of a Cray 2 under construction.Note the Tek 7104 in the background. Horizontal plugins are 7B15 and 7B10. I can't identify the vertical plugins.
Clock at the top of Hong Kong Central Plaza - Page 1
Forum section: electronics / general

author: NivagSwerdna
author_rank: Super Contributor
timestamp: October 07, 2016, 09:20:17 pm
content: Does anyone live in HK?I am building a clock which operates on the same principle as the clock at the top of Central Plazahttp://www.centralplaza.com.hk/eng/lightime.phpThe sequence of lights is shown in the description above but I seem to remember it also flashed as it changed... (possibly differently at the hours compared to quarter hours?)e.g. In the five seconds prior to the quarter hour the lights all go off and on??? something like that.Please could someone have a look and tell me!Thanks in advance

author: coppice
author_rank: Super Contributor
timestamp: October 07, 2016, 09:51:19 pm
content: I've been looking at that thing regularly since the time it was built, and I never realised it was supposed to tell the time.

author: NivagSwerdna
author_rank: Super Contributor
timestamp: October 08, 2016, 07:57:10 am
content: I used to leave work around White Red Red Red when going running. A quick look up and I would know if I was late.Please look out for the flashing if you are near it around the quarter, half or hour.

author: TerraHertz
author_rank: Super Contributor
timestamp: October 08, 2016, 09:43:00 am
content: With four bands, they could have coded the time HH:MM directly and unambiguously using the resistor color code for each digit. So 7:23 would be black purple red orange. 24 hour time also.'Brown' might be a bit tricky.

author: electr_peter
author_rank: Unknown
timestamp: October 08, 2016, 09:58:52 am
content: Is clock as shown on website useful at all? You cannot decode exact time even when you know color scheme because colors repeat too often. Also you should know color scheme in advance (good luck with that) and see the clock in the first place.Am I missing the point?

author: @rt
author_rank: Super Contributor
timestamp: October 08, 2016, 10:04:18 am
content: They could have done a lot of things such as made a proper clockQuote from: TerraHertz on October 08, 2016, 09:43:00 am

author: coppice
author_rank: Super Contributor
timestamp: October 08, 2016, 10:20:51 am
content: Quote from: @rt on October 08, 2016, 10:04:18 amMight there be a flaw in this idea? I wonder how big a proper clock they would have had to use for it to be readable from the ground?

author: NivagSwerdna
author_rank: Super Contributor
timestamp: October 28, 2016, 04:16:48 pm
content: Did anyone have a chance to observe the clock?I have a feeling it goes dark for 1 second before the 15 minute change and on hour changes it goes dark five times on alternate seconds 51,53,55,57,59 approaching the hour?Something like thatThx
Inside the CDC 6500 - Page 1
Forum section: electronics / general

author: wkb
author_rank: Super Contributor
timestamp: October 26, 2016, 08:01:57 pm
content: "Good luck" repairing that one. Those coax inter-cab cables need to be of the right length to ensure timing of the various signals is kept...

author: TerraHertz
author_rank: Super Contributor
timestamp: October 28, 2016, 07:40:39 am
content: "cut inter-bay cables" - which are each many-circuit coax. I wonder if they have original wiring diagrams?WITH the diagrams, it's going to be nightmare level. Without... they should not even attempt it.Also, diagnostics software?

author: Tom45
author_rank: Frequent Contributor
timestamp: October 28, 2016, 03:26:45 pm
content: I agree that those cut cables will be a real problem to repair.The video made a big deal about the Freon cooling Cray used. I remember once the refrigeration was intermittently failing and the CDC onsite techs were making no progress in finding the problem after several days of trying.So they called up a local refrigeration repair shop for a service call. When the guy walked into the computer room he was obviously very overwhelmed by all the computer equipment. But once they pointed him to the cooling units he was in his element and had it diagnosed and fixed in no time at all.
Promo Songs of Major Companies (Greater Union / Woolworths) [AU] - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: October 30, 2016, 03:01:10 am
content: This probably won't interest a lot of people however... I stumbled across a couple of files while cleaning up some "unorganised" folders on my NAS. A mate of mine worked for a company who produced and recorded promo material for various companies including Greater Union (now more commonly known as 'Event Cinemas') and Woolworths supermarkets. Most Aussies will remember these from the early 2000's.I think the Greater Union clip was used more for TVCs and during the pre-movie ads (trying to sell you popcorn) etc...Woolworths used variants of their jingle for various advertisements and the longer version (attached) was sometimes played between songs over their in-store audio systems.So for your listening pleasure, attached are some older promo material for the above-mentioned companies.(Sorry, I've had to re-encode them into low-ish bitrate MP3 to sit under the 1MB attachment size limit.)
Buying a LW-K305D PSU - is this eBay item in Australia? - Page 1
Forum section: electronics / general

author: DTJ
author_rank: Super Contributor
timestamp: October 28, 2016, 05:44:29 am
content: I'm looking at buying this LW-K305D 30V / 5A CC / CV power supply on eBay.I want to buy it from someone who has them in stock here in Australia. The eBay listing says the stock is in Australia but the eBay store is listed as being in China.So experienced eBuyers is it really here in Aus?http://www.ebay.com.au/itm/LW-K305D-30V-5A-Switching-DC-Power-Supply-Adjustable-Precision-LCD-Display-Tool-/201649157971?hash=item2ef339f753

author: steve30
author_rank: Frequent Contributor
timestamp: October 28, 2016, 07:38:17 am
content: I'd be inclined to say it is in Australia, but no guarantees.I've bought quite a few things from Chinese sellers who appear to have warehouses here in England, and give a choice of buying an item either from China, or from England.I did once buy an item from a seller who appeared to be English (with the item claiming to come from England), but it ended up coming from Switzerland, so you can never be too sure.

author: DTJ
author_rank: Super Contributor
timestamp: October 28, 2016, 08:31:08 am
content: Cheers Steve, I took the gamble and ordered.It probably does not matter too much where the stock comes from, old timers have old timer ways and I'd prefer it was from within Oz!

author: steve30
author_rank: Frequent Contributor
timestamp: October 28, 2016, 10:23:59 am
content: Let us know what happens. If it does come from China, at least it won't have as far to go as it would if I ordered it.

author: DTJ
author_rank: Super Contributor
timestamp: October 28, 2016, 10:30:52 am
content: I will do.
Instrument case Static control. Please Help! - Page 1
Forum section: electronics / general

author: calexanian
author_rank: Super Contributor
timestamp: October 26, 2016, 02:02:17 am
content: I just got a new instrument case for a new digital mixer and laptop and the thing is putting off enough static to push the cat across the floor. Its a Seahorse case. It is supposed to be the same spec as pelican and is specifically made for electronic instruments. Or so they claim. Is there anything I can do to help? Some kind of spray or wipe that is not just hocum snake oil.

author: Halcyon
author_rank: Unknown
timestamp: October 26, 2016, 04:57:00 am
content: Not sure about a permanent solution, but I've previously used a spray bottle with water and a small amount of dish washing detergent or laundry fabric softener on carpets and that's been quite successful. However if you're storing electronics in it and the case is airtight, humidity might be an issue for you.

author: calexanian
author_rank: Super Contributor
timestamp: October 26, 2016, 02:35:13 pm
content: Oh. Good idea. Fabric softener. I may first wipe it down with a dryer sheet. Thanks!

author: SeanB
author_rank: Super Contributor
timestamp: October 26, 2016, 08:00:36 pm
content: Not a drier sheet, but actual liquid softener, and wipe with a cloth dampened with it inside and out, and let dry. Works for me on carpeting to dump static charge on the odd day the humidity acually is low enough to allow it to build.Was not possible in school science to actually use the Van de Graaf generator in the class, as it would bleed off the charge as fast as it was transferred.

author: calexanian
author_rank: Super Contributor
timestamp: October 27, 2016, 02:21:35 am
content: I tried the dryer sheet and it worked.
Adam Savage's Zorg ZF-1 Prop Replica - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: October 28, 2016, 12:42:09 am
content: The persistence these guys have is remarkable

author: Rick Law
author_rank: Super Contributor
timestamp: October 28, 2016, 04:04:58 pm
content: Quote from: EEVblog on October 28, 2016, 12:42:09 amI like to see more of those guys. Their shows were educational and we miss them. In my daughter's younger days, their Myth Buster show was my daughter's informal physics lessons. We watch the show together, and we then discuss. What did you see there? Why? What could be the physical law controlling it? What are the constrains? What would break down their approach? What could make the biggest change in their results?... ... ... Their show makes discussing the physical world more interesting.
have i got a virus  - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: October 26, 2016, 08:12:05 am
content: sometime has happened like 6 times in the last 2 when browsing the net idm will pop up wanting to download this filehttps://r1---sn-uo1-53az.gvt1.com/edgedl/widevine-cdm/903-win-ia32.zip?cms_redirect=yes&expire=1477483732&ip=125.238.1.180&ipbits=0&mm=28&mn=sn-uo1-53az&ms=nvh&mt=1477469306&mv=m&pcm2cms=yes&pl=26&shardbypass=yes&sparams=expire,ip,ipbits,mm,mn,ms,mv,pcm2cms,pl,shardbypass&signature=31AF2297ADE41F400FFF186852BE820451DF5F1C.2828E93C4A78C0332D2F79F288928A5C4FA3B95A&key=cms1so what is the file and why does it keep coming up

author: Ian.M
author_rank: Super Contributor
timestamp: October 26, 2016, 08:22:31 am
content: http://www.google.com/search?q=%2Fedgedl%2Fwidevine-cdm%2F903-win-ia32.zipHowever the fact that you are so clueless about safe use of the internet, that you posted a potentially dangerous URL you think may be a virus as a link ready to infect anyone who clicks it, rather than putting it in code tags so it isn't directly clickable, means the odds are that even if that specific file is legitimate, you probably *do* have a virus . . . . .
What if 220V goes from your body to your head through your neck? - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: October 11, 2016, 10:38:17 pm
content: Jump to 1:40 if you are impatient. Jump to 3:30 to see this guy pokes his metalized fingers into a power socket.

author: Brumby
author_rank: Unknown
timestamp: October 12, 2016, 12:31:51 am
content: I was hoping we would see the removal of the tape.......

author: VK3DRB
author_rank: Super Contributor
timestamp: October 12, 2016, 10:19:35 am
content: Its all part of the training for Russian military jerks.

author: george graves
author_rank: Super Contributor
timestamp: October 12, 2016, 10:38:49 am
content: Someone send a sandwich to that poor kid.

author: RGB255_0_0
author_rank: Frequent Contributor
timestamp: October 25, 2016, 07:45:47 pm
content: Seems stupid shit is their past-time.
prices of electronics is getting cheaper and cheaper - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: October 25, 2016, 01:24:52 am
content: i remember back around 2011 might have been 2012 i wanted to buy a tv something like in the photo looked all over the net cheapest was one was going to cost $129nzd now you can get them for like 42nzdalso i can remember getting my first 1gb mp3 player back in 2006 and paying $90nzd now i can get an 4gb mp4 player for $9nzd

author: ZeTeX
author_rank: Frequent Contributor
timestamp: October 25, 2016, 09:33:32 am
content: Quote from: sony mavica on October 25, 2016, 01:24:52 ambut that's a good thing, its just a matter of time till 4K screens will be cheap like 128x64 OLED display.
Hack Wireless keyboards un safe - Page 1
Forum section: electronics / general

author: C
author_rank: Super Contributor
timestamp: October 25, 2016, 04:55:47 am
content: Headline isQuotehttp://www.theregister.co.uk/2016/10/24/hackers_pop_top_secure_wireless_keyboard_and_mouse_kits_gain_rce/QuoteQuoteQuoteGood reason to use wired keyboard & mouse

author: RoGeorge
author_rank: Super Contributor
timestamp: October 25, 2016, 09:28:21 am
content: Finally! It's almost 2 years since Samy Kamkar posted a video about how to build a sniffer for a wireless keyboard:
Hoarder sale - Page 1
Forum section: electronics / general

author: grouchobyte
author_rank: Regular Contributor
timestamp: October 24, 2016, 06:42:50 pm
content: A local Tektronix Hardware engineer passed away recently and his widow finally empties the house, garage and basement of his "junk". I guess he doesn't need it now.Talk about a nice score to those who got there first (premium test gear) and last( dumpster diving).http://pdxestateservices.com/hoarder-phase-2-oct-2223-2016/@grouchobyte

author: TerraHertz
author_rank: Super Contributor
timestamp: October 25, 2016, 12:33:33 am
content: Oh... my... god...But it's on a different continent.That guy liked browsing in hardware stores, without concern for the bank account. Possible a 'few' too many tools in some categories. But you can NEVER have too many G-clamps for instance. And he knew it. Sigh. There are some in that box I'd love to have. Can never find certain types in stores here, or online either. (I know, due to inadequate search efforts.)

author: Brumby
author_rank: Unknown
timestamp: October 25, 2016, 01:06:33 am
content: Far out.I'd like to show some of those photos to SWMBO - in defence of my 'accumulation' ... except I think it might backfire.

author: edy
author_rank: Super Contributor
timestamp: October 25, 2016, 01:10:53 am
content: This is a sickness. I mean, it's an awesome collection but who needs 50 identical tools in every category? At least they are sorted... Hope they make it into the right hands and not dumped in landfill. Surely if they can't sell they should give them away.

author: grouchobyte
author_rank: Regular Contributor
timestamp: October 25, 2016, 02:16:57 am
content: Quote from: edy on October 25, 2016, 01:10:53 amI was there near the end of the sale and got some decent stuff for pennies on the dollar. It was packed with many ex-Tektronix engineers ( many of which are friends that I worked with over the years) looking for that thing or widget to add to their own collection or speciality part needed to fix an old 500 series scope stored under the bed....... so when they go and kick the bucket and the remaining family member sells or dumps his "junk", she/he can finally get the cars parked inside the garage and regain the living room and bedroom space and or demolish the place. Turn that surplus into some quick cash.Amen@grouchobyte

author: CatalinaWOW
author_rank: Super Contributor
timestamp: October 25, 2016, 04:25:07 am
content: Thank heavens I didn't know about this. I would have brought stuff home. Because even though this guy had too many of many things, you can never have too many clamps. Plus some other stuff. From the few prices that I could read they were fairly reasonable on asking price, and I am sure they were negotiating.I would have really liked to look in the box labeled ODDWARE, just to see what was there.

author: Brumby
author_rank: Unknown
timestamp: October 25, 2016, 04:40:50 am
content: Quote from: CatalinaWOW on October 25, 2016, 04:25:07 amI saw that too..... and I was also curious.

author: ez24
author_rank: Super Contributor
timestamp: October 25, 2016, 04:44:41 am
content: Thank god I am not near there.
Can printer cartridges be reused without mishap? - Page 1
Forum section: electronics / general

author: sainbablo
author_rank: Regular Contributor
timestamp: October 26, 2016, 02:47:03 pm
content: A new replacement of well known printer/scanner cartridge, named after two letters of alpha beta, costs about usd 15.It gives me about 85 pages of A4 with 1 inch margin all around. High costs dampen enthusiasmRefilling is cheap but messy and more often than not ends up with leaks and ink smudges.I use an I/v syringe with fitted needle, through a black spot on the white label over the front of the cartridge and push in about1.8 mls of replacement ink which is meant for the purpose, made in korea.Am I missing something to ensure proper usage? Thanks

author: R005T3r
author_rank: Frequent Contributor
timestamp: October 26, 2016, 07:22:07 pm
content: There are refillable cartidges like these ones here:They mount reset chips and they have a pluggable silicon cap that prevent the ink from smudging: if you refill the ink from the front lable, you will end up with a mess.Run various cleaning. And refill the cartidges from the back not from the front hole the front needs to be clear because the ink needs to damp the sponge, and then you need to reseal it to prevent the ink from escaping when you will relase the cartidge ... If the smudges persists and during usage they get worse, this means the ink buffer is full and you can't replace it.If you need to print a lot and colour printing is not an issue, consider a laser printers when the inkjet breaks up: it works better, replacing the cartridge is very easy,if you don't want to spend a lot for original toners, there are compatible toners as well, it prints faster, the ink won't solidify if you use it once a year, the toner will last very long in normal conditions: 500 pages on average. Don't be fooled by ink jet tecnology prices