hybridfree/eevblog-posts huggingface dataset:
high voltage ma - Page 1
Forum section: electronics / general

author: Tyke118
author_rank: Newbie
timestamp: January 17, 2013, 08:13:38 am
content: I am trying to create a high voltage from 6 volt batteries, I can achieve with an earth but it needs to run inside a plastic housing, without an grounded earth outside it doesn't work, can I ground using the battery negative inside, it also has an LED running off the batteries?

author: amyk
author_rank: Super Contributor
timestamp: January 17, 2013, 11:02:20 am
content: Maybe you should learn more about the concept of ground before playing with high voltage...

author: c4757p
author_rank: Super Contributor
timestamp: January 17, 2013, 01:51:22 pm
content: Quote from: Tyke118 on January 17, 2013, 08:13:38 amUm... why?
New Electrifying Down Under Movie - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: January 17, 2013, 07:07:41 am
content: Greetings EEVBees:--I just saw the Sapphires. Great Australian movie, I highly recommend it. Very heart warming and funny. For the most part good family entertainment. Some of my Air Force friends who were in the 'Nam swear they saw a group very much like this one.“You can't help respecting anybody who can spell TUESDAY, even if he doesn't spell it right; but spelling isn't everything. There are days when spelling Tuesday simply doesn't count.”Winnie the Pooh 1925 -Best RegardsClear Ether
Craigslist Find - Page 1
Forum section: electronics / general

author: prenato
author_rank: Regular Contributor
timestamp: January 16, 2013, 04:12:09 am
content: I regularly scan my local Craigslist in search of test equipment deals. Today a gentlemen posted an add for a free (!!) RF signal generator that "may or may not work". I decided to take the 30 minutes drive and pick it up. After calling the person (very nice people by the way) I was given directions to this farm house, It was a nice drive through a bucolic landscape in Northern California. The RF generator was to be found "behind a rock" near the front fenceAnd there it was. Heavy piece of gear, so I figure there must be some "value" here, even if it doesn't work. Back in my garage I powered-up the beast. The good news: it powers up and the front panel controls seem to be working. The bad news: no front nor back main RF connector, so it must be missing something major (hybrid?). See attached photos. The device is an "Adret 740A", made in France (never heard of them before).Anybody has experience with these devices? Is it worth for me trying to fix it or should I just tear it down for parts? (I already have a functioning HP 1GHz RF generator).Paulo

author: smashedProton
author_rank: Frequent Contributor
timestamp: January 17, 2013, 03:06:52 am
content: Beauty! I love it. I wish i had room for something like that in my lab/bedroom/living room/gym/guest bedroom

author: scopeman
author_rank: Frequent Contributor
timestamp: January 17, 2013, 03:15:01 am
content: Adret's are really nice generators. Well built and designed, Good luck finding a manual though!Sam

author: prenato
author_rank: Regular Contributor
timestamp: January 17, 2013, 06:43:13 am
content: Hi Sam,The manual I found online. It's on the Adret website. The issue with the unit is that there is no Rf output... Kind of an issue for an RF generatorMust be difficult to find spare parts for this.Paulo
elektor magazine 25% off US & CANADA - Page 1
Forum section: electronics / general

author: Pat Pending
author_rank: Regular Contributor
timestamp: January 16, 2013, 06:08:06 am
content: www.elektor.com/25dealFound this within the sample mags stand at CES.$30 USD for a full year

author: kizzap
author_rank: Unknown
timestamp: January 16, 2013, 07:04:43 am
content: Only available to US and Canada membersIt will cost $90 $@#!ing dollars in Australia for a purely digital membership? (Not to mention $150 for a printed version to be sent to you)I honestly don't see a benefit to subscribing...

author: Mechatrommer
author_rank: Super Contributor
timestamp: January 16, 2013, 10:28:09 am
content: darn racism.

author: MikeK
author_rank: Super Contributor
timestamp: January 17, 2013, 12:50:56 am
content: Quote from: kizzap on January 16, 2013, 07:04:43 amLookup what it costs Americans to get Silicon Chip magazine. In the end you decide you either want it or not. It's a lot cheaper than what people waste on designer water or fancy coffee.
fx888 or fx888D? - Page 1
Forum section: electronics / general

author: ChrisW
author_rank: Contributor
timestamp: January 16, 2013, 05:57:51 am
content: Frankly other than a digital readout I don't know if it is worth paying the extra for the 888d verision. ($172 vs $220 before gst)What do you think? Analogue or go digital?-Chris

author: misisoso
author_rank: Contributor
timestamp: January 16, 2013, 06:17:52 am
content: Hello. If the display show also the soldering tip temperature, go for the digital. If the display is only for showing the preset temperature, go for the analog one. My opinion.

author: saturation
author_rank: Super Contributor
timestamp: January 16, 2013, 12:33:37 pm
content: Analog, the new digital one was discussed in the archives.

author: Dagon
author_rank: Regular Contributor
timestamp: January 16, 2013, 05:20:12 pm
content: Here:https://www.eevblog.com/forum/chat/hakko-fx-888-soldering-station-discontinued/

author: nanofrog
author_rank: Super Contributor
timestamp: January 16, 2013, 10:05:07 pm
content: Look at the thread, as well as the manuals (can get them on Hakko's site in .pdf), and see which you'd prefer. Iron wise, they're the same. So it will just come down to which control method is more comfortable/useful to you.FWIW, If you're truly interested in a digital model rather than a knob, you might want to take a look at the FX-951. It offers better heating technology (heater + sensor are built in the tip) as well as missing features in the FX-888D (sleep mode for example). Just a suggestion to consider if you'll be doing a lot of soldering. If not, skip this, as the price is $250USD (MSRP, and I can't ever recall seeing it at a discount/sale).
Mount PDIP onto SOIC board (opposite of most people!) - Page 1
Forum section: electronics / general

author: dack
author_rank: Newbie
timestamp: January 16, 2013, 06:45:27 pm
content: Does anyone know of a good way to adapt a PDIP-16 for mounting on a SOIC-16 board outline? I'm repairing some boards with failed SOIC-16 components. Unfortunately, these components are now only available in PDIP-16. The board isn't packed too tightly and there is some vertical space, so a "tall" adapter of some sort could work.

author: marshallh
author_rank: Unknown
timestamp: January 16, 2013, 06:51:26 pm
content: Just one? easiest to deadbug the new chip in a convenient spot next to it and use 30ga wirewrap wire.For several, make some pcbs with plated holes ove the SOIC pads, then whack off the edges to expose the plating, now you can solder it flush onto the pcb. Maybe solder a cheap flat flex cable to a mating pcb on the DIP.

author: dack
author_rank: Newbie
timestamp: January 16, 2013, 07:06:32 pm
content: I've got several of these, and I was hoping to do it a little neater than deadbug style. The plated thru-hole idea seems like a good one. I'll have to price it out and see if it's worth it for a small number of boards. Thanks!

author: UPI
author_rank: Regular Contributor
timestamp: January 16, 2013, 07:52:05 pm
content: This adapter has vias around the SOIC pins. Maybe you could trim out the SOIC pads between the vias to do the job?http://www.ebay.com/itm/SOIC8-SOP16-SO16-TSSOP16-SOIC16-to-DIP16-adapter-PCB-convertor-2-54mm-PIN-5pcs-/251214664273?pt=LH_DefaultDomain_0&hash=item3a7d8f9251Just a thought.

author: nitro2k01
author_rank: Frequent Contributor
timestamp: January 16, 2013, 08:03:10 pm
content: Which component is this?
315mA Fuse standard what are its origins? - Page 1
Forum section: electronics / general

author: PICmonster
author_rank: Regular Contributor
timestamp: January 15, 2013, 12:05:27 pm
content: Hi ThereI have had this question in my mind for some time and I have not really had a proper explaination, the question is simple.Where did the 315mA fuse standard come from, what are its origins and why so specific and not a round number, is there an equation related to this?

author: tom66
author_rank: Super Contributor
timestamp: January 15, 2013, 12:20:12 pm
content: Part of the Renard "10" series (a preferred number series.)R10: 1.00 1.25 1.60 2.00 2.50 3.15 4.00 5.00 6.30 8.00Quote from: Wikipedia

author: PICmonster
author_rank: Regular Contributor
timestamp: January 16, 2013, 01:10:42 pm
content: Thank you very much I have wondered about this for a while.
old tube radio - any trouble with 230V ? - Page 1
Forum section: electronics / general

author: rr100
author_rank: Frequent Contributor
timestamp: January 16, 2013, 05:13:37 am
content: It has switchable 110/127/220V and I'm sure it was never used on 230V. I guess it won't even notice the difference to our 230V but I thought about double checking here first.

author: Gall
author_rank: Frequent Contributor
timestamp: January 16, 2013, 12:52:22 pm
content: Usually this does not affect much. However it is easy to rewire to 237V. There may even be an undocumented 4th 237V switch position.
Hello - Page 1
Forum section: electronics / general

author: Daving
author_rank: Contributor
timestamp: January 16, 2013, 08:58:24 am
content: Hello! I've been watching the EEVBlog for about a year now, and find it quite enjoyable. I'm a (frustrated) student in EE. I enjoy all manner of analog designs and am gradually collecting books featuring Bob Pease and Jim Williams. My other EE interests include RF, analog computing, and asynchronous digital (regular digital is rather boring too me(anyone can count to 1!)). I interned at Microchip last summer (partly thanks to nepotism) and got to work on some interesting embedded applications, and have my first patent (I know I know OSH, but Microchip doesn't care if you use the patent as long as you use their parts to do it) application in. I've since done up a couple more boards. One is an assortment of sensors with an RF chip for a home automation application, and the other is an oscilloscope that's targeted to cost less than $20 so it can be used to demonstrate math applications in elementary and middle school classrooms as well as light an interest in electronics design among kids.That should be enough information for the E-stalkers to find me.Oh and of course, Thanks Dave for all the information you put out there.Edit: Somehow I overlooked the new member thread.
Agilent u8002a startup oddity - Page 1
Forum section: electronics / general

author: grumpydoc
author_rank: Super Contributor
timestamp: January 14, 2013, 05:08:35 pm
content: Well, my u8002a turned up today so naturally I wanted to have a tinker and check its performanceHowever I noted something of an oddity when looking at it's turn on behaviour. Set at 24V driving a dummy load I get this:With a rapid rise to about 8V, then much more slowly to the set voltage over about 80-100ms. Not what I expected and had me scratching my head a bit but Ithinkthe problem is my dummy load.Not having a "proper" dummy load which will sink 3-5A at 30V for higher current stuff I wind up using a combination of high wattage vehicle headlamps as I have them lying around - in this case a single 75W 24V truck headlamp.Initially the filament is cold and therefore low resistance so the voltage rises rapidly until the current limit kicks in at a little over 5A - 8V at 5A is enough to get the filament glowing so as its resistance rises the supply will be in CC mode and raise the voltage to keep the current at 5A. Finally once the bulb is up to temperature the current drops to about 2.8A1and the voltage steadies off at 24VDoes this sound correct?Guess I need a better dummy load! Truck electrical systems are at about 28V with the alternator running and the battery charging so 24V is under-running the lamp a little.
ESR Meter, Advice? - Page 1
Forum section: electronics / general

author: Hexureus
author_rank: Contributor
timestamp: January 14, 2013, 11:22:11 am
content: Hello,I recently saw a video of Dave of repairing a LG monitor, and in the video he used an ESR Meter to check the caps.I have been looking for one like it on e-bay but no luck.Although I found this onehttp://www.ebay.co.uk/itm/ESR-Meter-with-Electrolytic-Capacitor-Meter-black-/140862859482?pt=LH_DefaultDomain_0&hash=item20cc14a8daand I would like to hear any one's opinion about it.Thank you.

author: kripton2035
author_rank: Super Contributor
timestamp: January 14, 2013, 11:29:32 am
content: hello,here you have plenty of schematics to build your own,or commercial links to buy oneregards,http://kripton2035.free.fr/esr-repository.html

author: kripton2035
author_rank: Super Contributor
timestamp: January 14, 2013, 11:31:33 am
content: Quote from: Hexureus on January 14, 2013, 11:22:11 amthis one is quite expensive for the functions it has.
Looking at bridging courses .. - Page 1
Forum section: electronics / general

author: Things
author_rank: Regular Contributor
timestamp: January 14, 2013, 11:31:33 am
content: Hey guys,I've always wanted to do electrical engineering, but I'm really not a maths savvy person, as such I'm looking at doing a bridging course I hope will help. Has anyone here done a bridging course to get into EE?I'm trying to figure out what some stuff I should attempt to touch up on before going in, so I don't just confuse myself instantly.Being a bridging course, I'd think it would cater for people that maybe didn't do any highschool maths at all, or have simply forgotten heaps of it. I finished highschool in 2011, so even after 1 year my maths skills are pretty rusty (If they weren't always).A friend who is in his 2nd year of EE at the moment says the bridging courses will cover pretty much everything, but it'll be very fast paced.Just looking for some adviceCheers
New material for 3D printers. - Page 1
Forum section: electronics / general

author: Pat Pending
author_rank: Regular Contributor
timestamp: January 13, 2013, 07:53:58 pm
content: Who would have thought - paper!The results are quite remarkable, you do need reams of paper though.

author: Stonent
author_rank: Super Contributor
timestamp: January 13, 2013, 08:01:50 pm
content: Seems a bit wasteful unless they have a way to put in 1/2 size sheets or something like that. But at least the paper is recyclable.

author: mariush
author_rank: Super Contributor
timestamp: January 13, 2013, 08:03:07 pm
content: Paper is kinda thick.I wonder why they didn't think of doing it with scotch tape rolls.. it's already thin film, it's already sticky from factory, it can be cut easily with some laser..I guess the paper idea was not patented or something like that.

author: G7PSK
author_rank: Super Contributor
timestamp: January 13, 2013, 09:43:26 pm
content: Get a large one of those and use resin glue, and you could print spare panels for a Trabant, or more useful items like Furniture.

author: 0xdeadbeef
author_rank: Super Contributor
timestamp: January 13, 2013, 11:06:21 pm
content: The cool thing is that they can also print the paper with an inkjet before cutting/gluing and thus get fully colored 3D prints:
Snow on the  A 22Kv cabel.. - Page 1
Forum section: electronics / general

author: ErikTheNorwegian
author_rank: Frequent Contributor
timestamp: January 13, 2013, 08:05:32 pm
content: The most snow on a electrical cable was accumulated in Norway back in 1961.On the 22kV cable in Voss, norway, it accumulated 1,5 meter with snow and ice. The pictures are from Lønahorgi, 1410 metre over the sea. Every meter of ice wegth 305 kilo.That is equivalent with a WV beadle hanging side by side. The reason for the accumulation of ice that the cable itself was free spinning around it own center, allowing the ice to form equally around the cable without breaking of. If the cable was not spinning, the ice would have formed a wing like structure and broken off.After this they changed the way og putting up cabel in the montains.

author: M. András
author_rank: Super Contributor
timestamp: January 13, 2013, 09:21:21 pm
content: this is amazing, i wonder the poles and the holders didng gave up due to the extra weight. and no flashover

author: G7PSK
author_rank: Super Contributor
timestamp: January 13, 2013, 09:35:04 pm
content: I guess that proves that ice is a poor conductor of electricity as well as heat. Also proves how well the lines were engineered for such conditions.
Agent Jones, Dave Jones - Page 1
Forum section: electronics / general

author: McMonster
author_rank: Frequent Contributor
timestamp: January 13, 2013, 08:35:23 am
content: http://www.news.com.au/technology/spy-agency-asio-wants-powers-to-hack-into-personal-computers/story-e6frfro0-1226552661701Who knows, maybe recent problems with the website are the result of Dave being already employed in a spy agency, even if he doesn't know it?

author: EEVblog
author_rank: Unknown
timestamp: January 13, 2013, 08:57:51 am
content: Good luck with them getting that one through.Dave.

author: SeanB
author_rank: Super Contributor
timestamp: January 13, 2013, 09:12:20 am
content: The Germans did this and a whole lot of police were fired over it, the storm is still brewing over it there. You then will have a unbreakable defence against any thing on your computer:- that the ASIO must have placed it there, they will be unable to deny.

author: BravoV
author_rank: Super Contributor
timestamp: January 13, 2013, 11:30:32 am
content: It so easy & simple to prevent this, just stop being uncle sam's puppy, then all this stupid things become unnecessary and pointless.

author: Sionyn
author_rank: Frequent Contributor
timestamp: January 13, 2013, 12:20:25 pm
content: there afgter the plans for dave power supply and calculator

author: G7PSK
author_rank: Super Contributor
timestamp: January 13, 2013, 04:44:29 pm
content: All very well, but it's more than likely that the ASIO will cover it's tracks until the last computer in the chain before the target one, the Terrorists will find the apparent computer that hacked theirs and go round and put a bomb under the poor bastard that owns it or shoot them.
Computer Power Switch Plugs - Page 1
Forum section: electronics / general

author: Mike Warren
author_rank: Unknown
timestamp: January 11, 2013, 06:03:40 am
content: Does anyone know where to get the 2 pin plugs use for motherboard power and reset switches etc?I want just the housing and pins, no wire.http://www.moddiy.com/products/-Dupont-2%252dPin-Female-Motherboard-Power-Switch-Connector-%252d-Black.htmlThis is the sort of thing I mean, but I want to buy 100+ quantities and would hope to get them cheaper than that from a proper electronics wholesaler.I've just spent nearly an hour searching, but must be using the wrong search terms. These should be very common, considering how many computers are out there.I have used these in the past, but they sometimes don't fit as well as the proper plugs.http://www.altronics.com.au/index.asp?area=item&id=P5472

author: vk6hdx
author_rank: Regular Contributor
timestamp: January 11, 2013, 06:46:55 am
content: I found them on Digikey, bloody expensive though!Housing:http://www.digikey.com/product-detail/en/65039-035LF/609-2341-ND/1002656Pins:http://www.digikey.com/product-detail/en/47747-000LF/609-2301-ND/1002616There may be some cheaper / equivalent parts on there, I didn't spend much time looking.

author: notsob
author_rank: Frequent Contributor
timestamp: January 11, 2013, 07:05:14 am
content: Check out the listing at toby.co.uk - note last time I checked they didn't offer snail mail to oz and their rapid delivery price was almost like 'give us your first born'http://www.toby.co.uk/content/catalogue/products.aspx?series=1800-Hxx

author: UPI
author_rank: Regular Contributor
timestamp: January 11, 2013, 01:19:55 pm
content: http://www.ebay.com/itm/100Pcs-2P-Dupont-Jumper-Wire-Cable-Housing-Female-Pin-Connector-2-54mm-Pitch-/300774470766?pt=LH_DefaultDomain_0&hash=item46078e346e

author: madires
author_rank: Super Contributor
timestamp: January 11, 2013, 01:56:55 pm
content: And don't forget to buy the crimping tool too (around 20-30 Euros) if you don't got it already.

author: Mike Warren
author_rank: Unknown
timestamp: January 13, 2013, 04:46:27 am
content: Thanks for the replies. Searching for the text of the ebay link UPI supplied gives quite a few results at sensible prices.

author: kizzap
author_rank: Unknown
timestamp: January 13, 2013, 05:17:54 am
content: Something like these?http://au.element14.com/multicomp/2226a-02/crimp-housing-1-row-2-way/dp/1593506http://au.element14.com/molex/90123-0102/housing-polarised-2way/dp/3291327and the terminals:http://au.element14.com/multicomp/2226tg/crimp-terminal-24-28awg/dp/1593529?in_merch=true&MER=MER-L52-L5IB-PD-ACC-CNN

author: Mike Warren
author_rank: Unknown
timestamp: January 13, 2013, 05:26:05 am
content: That looks like the sort of thing. A bit expensive for production, but okay for small quantities. Thanks.

author: richms
author_rank: Contributor
timestamp: January 13, 2013, 09:32:09 am
content: Try these guys -http://www.pololu.com/catalog/product/1929-http://www.pololu.com/catalog/category/70
The Consumer Electronics Show (CES) 2013 - Las Vegas - Page 1
Forum section: electronics / general

author: Pat Pending
author_rank: Regular Contributor
timestamp: January 13, 2013, 08:29:35 am
content: The Consumer Electronics Show (CES2013) kicked off this past week and I was (un)fortunate enoughto spend a few days gradually getting sore feet.CES is that kind of show where there are simultaneous launches of the same technology (remember 3D TV).And the hype would have you believe that they claim to be the 'worlds first'. This time around,2013 was the year of the 4k displays, and in case you were wondering that's a measure of theapproximate horizontal pixel count - somewhere we switched from 1080 lines vertically to measuring pixels horizontally.This was also the year that Microsoft decided not to attend.If there was one main take away, it was that the Chinese TV companies are catching up faston the well known names in Japanese CE goods. They (the Chinese) were showing 4K displays ofequal fidelity to the big name Panasonic and Sharps. And as there are only a limited numberof panel producers, products will have roughly the same display performance, only to bedifferentiated by features, brand and by price. Inevitably, I'd argue that the Japanese CE companies should lookto exit the flat panel TV market much as Philips has done.Kickstarter brought the Pebble watch folks to CES, and their CEO got a few minutes morning airtime on CNBC.It was funny to observe the 'me too' watch prototypes from Toshiba and others.Even though Apple does not attend CES, a special iLounge is set aside for those 500 accessory companies that do.Every conceivable form and colour of iphone/ipad case can be had.Makerbot made a showing with a more expensive Replicator 2X priced at $2799. Although two independent 3D printer companies,whose printer appeared to be clones of each other, could be had for $1499.To top it off, the GoPro folks managed to fill the isles to standing room only with their camera give away.CES has products on display that beckon questions such as What is it? and Why?and comical wishy-washy, touchy-feely explanations of technology from the hired hands.And on a side note - soooooooo many DSLR video bloggers.There should be videos of everything on YouTube by now.
Extech MN47 - either I'm an idiot or there is no backlight (or both) - Page 1
Forum section: electronics / general

author: Jschool
author_rank: Contributor
timestamp: January 13, 2013, 03:03:02 am
content: Thought I'd pick up the MN47 as a backup meter since it seems to be the replacement for the EX330. There are some plusses and minuses in comparison to the 330 but mostly it is an improvement. This one includes a case, for one, and while the rubber housing is no longer removable, the probe holsters on the back are convenient and it sits on a desk much better than the 330. Also, the high voltage detector no longer uses a button that bypasses the off switch so off = off.OH AND IT HAS A BACKLIGHT.It says so right there on Amazon:http://www.amazon.com/Extech-MN47-Function-Compact-MultiMeter/dp/B003WFJ0UGAnd on TEquipment:http://www.tequipment.net/ExtechMN47.aspIn fact it says so repeatedly in product listings all over the web. That's one of the reasons I returned the 330 I had purchased to exchange it with the 47. But I don't need a light meter to measure the lumens this screen is giving off. I'm pretty sure it is ZERO, because there is NO BACKLIGHT.Good pictures of this meter were hard to find so I figured there was some hidden backlight switch or maybe it had ambient light detection or maybe it was some combo of buttons to turn it on. NOPE. No mention of it in the manual. No switch.Oh well. I still think it's an overall improvement. My biggest disappointment is... the internet lied to me.

author: Lightages
author_rank: Unknown
timestamp: January 13, 2013, 05:17:01 am
content: The data sheets on the retailer's website says that is has backlight, but on the Extech website the description is "high contrast" instead of "backlit". I'd say that somewhere along the line the specifications got changed and no one noticed at the retailers. I would complain to the retailer you got it from if they advertised the same and ask for your money back or compensation.
Low volume custom panel labels - Page 1
Forum section: electronics / general

author: Mike Warren
author_rank: Unknown
timestamp: January 11, 2013, 04:05:24 am
content: I'm looking for an economical supplier of a sticker to label the front panel of a project using this small hand-held case:http://www.altronics.com.au/index.asp?area=item&id=H0352I'd probably only want 100 at a time, unless there is a very good saving to go to 500 or 1000.There needs to be holes for 6 LEDs and one small push button.I've previously used engraved labels for a remote control (similar area, but 24 rectangular holes), but they were over $4 each. This project needs to bemuchcheaper. Lexan would be ideal, but I'm willing to go paper if the savings are good enough and the quality of the paper labels is reasonable.

author: SeanB
author_rank: Super Contributor
timestamp: January 11, 2013, 06:29:20 am
content: Have you tried a label printer in your area. A peel off label on a roll die cut to fit the pinout with a UV varnish overlay or a laminated top cover will work, though it may be expensive if they do not have a punch cutter for your particular size. You probably would have to order 1000, though you can seal them in a waterproof bag along with a desiccant sachet and store in the fridge to keep them usable longer. you will have to specify an adhesive that sticks to the substrate and punch the holes for the LED and pushbutton yourself though, unless you have this done in the cutting die which then becomes custom to you.

author: dr_p
author_rank: Frequent Contributor
timestamp: January 11, 2013, 08:26:10 am
content: You might get away without holes: I would print on A4 transparent film, don't punch a hole for the LED, it will just shine through. And the push button might work if it's flush with the panel when pushed. That way it sticks out a little when not pressed. Depending on your design it might look quite fine this way. And you can print them yourself. If not, maybe you can only drill the button, leave the LEDs covered.

author: Mike Warren
author_rank: Unknown
timestamp: January 13, 2013, 04:50:01 am
content: Thanks for the replies. I definitely need holes but would prefer not to punch them myself unless there is a major saving.
Hakko Desoldering Equipment - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: December 11, 2012, 09:02:59 pm
content: Greetings EEVBees:--I am thinking about buying some used Hakko desoldering equipment on eBay. I want to use a stand alone vacuum pump. I wanted to know if the Hakko FM-2024 Hand piece is compatible withe the 470 series vacuum units. Also I would like to hear from any who has used Hakko desoldering equipment."Happy for you to desoldering, please."Wun Hung Lo 1948 -Best RegardsClear Ether

author: Frank@Hakko
author_rank: Newbie
timestamp: January 10, 2013, 04:51:28 pm
content: Good Morning SgtRock,The FM-2024 hand piece is NOT compatible with the 470 series.If you have any further questions feel free to contact me anytime.

author: SLJ
author_rank: Frequent Contributor
timestamp: January 10, 2013, 11:28:05 pm
content: Frank, any news on what's replacing the Hakko FX?888?

author: willb
author_rank: Regular Contributor
timestamp: January 11, 2013, 12:17:05 am
content: I currently own a Pace SX-80 running off a ST-125 station and a Hakko 808. The Hakko requires a lot less maintencne, the Pace tips seem to clog too frequently to my liking. The Hakko tips in my experience also seem to last longer. The Pace unit feels more comfterble to me to use, but I really can't hold that against the Hakko being a totally different design. If it wasn't for the fact that I alao own pace irons, thermojets and tweezers, I would probably only use/keep the 808.

author: necroscope
author_rank: Regular Contributor
timestamp: January 11, 2013, 02:14:16 am
content: Quote from: willb on January 11, 2013, 12:17:05 amPace fixed the clogging problem with the introduction of the sx-90 tips,you can see the difference between the tips on this page herehttp://www.blackandco.com/govtsales/pace/PACE_SX-90_Solder_Extractor_Desoldering_Handpiece.htmMy sx-90 never clogs,they really have perfected the design.defiently worth upgrading tips.

author: Frank@Hakko
author_rank: Newbie
timestamp: January 11, 2013, 05:07:36 pm
content: Quote from: SLJ on January 10, 2013, 11:28:05 pmThe FX888 has been replaced by the FX888D. This unit is the same as the FX888 but DIGITALhttp://www.hakkousa.com/detail.asp?PID=5085&Page=1

author: SLJ
author_rank: Frequent Contributor
timestamp: January 11, 2013, 08:19:18 pm
content: Quote from: Frank@Hakko on January 11, 2013, 05:07:36 pmSorry to hear that. Digital readout is a plusbut a knob to adjust temperature is preferred by many.
Anyone here from Melbourne? - Page 1
Forum section: electronics / general

author: SoftwareSamurai
author_rank: Regular Contributor
timestamp: January 11, 2013, 12:46:07 pm
content: Do they really dance like this in Melbourne?

author: SeanB
author_rank: Super Contributor
timestamp: January 11, 2013, 01:36:17 pm
content: Nice footwork there, but the camera lens is full of dust. Needs a little front light as well to cut the back glare.

author: digsys
author_rank: Unknown
timestamp: January 11, 2013, 01:46:13 pm
content: Only when we're REALLY drunk I think !!

author: Mechatrommer
author_rank: Super Contributor
timestamp: January 11, 2013, 02:43:48 pm
content: ey sweety next time wear proper dressing, you dont wear ballet to shuffle or moonwalk. the bouncing is screwing the "subject matter" the pace of the music is also almost nearly in the "resonance" region. btw, this shuffle we usually have wedding events that allow dancing at the front. when shuffle music is ON, our 5-10 yrs old kids appear from every corners and nowhere into the middle until the dance floor is full, dancing frantically and very unsychronized can you imagine that? western influence and the net duh. synchronized/group shuffle is fun to watch though, but most of the time they simply look like madness.

author: SeanB
author_rank: Super Contributor
timestamp: January 11, 2013, 04:06:40 pm
content: Do a quick search on YT for "Pantsula" and enjoy............
What Did Google Earth Spot in the Chinese Desert? An Ex-CIA Analyst Isn’t Sure - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: January 10, 2013, 11:04:00 pm
content: http://www.wired.com/dangerroom/2013/01/google-earth-china-hunh/

author: Sionyn
author_rank: Frequent Contributor
timestamp: January 10, 2013, 11:14:39 pm
content: i bet their trying to model daves lab

author: Bored@Work
author_rank: Super Contributor
timestamp: January 11, 2013, 12:09:01 am
content: "it went up in what I’d call an incredible hurry"I call bullshit. Google is slow at updating satellite images. He should not have enough samples to judge how fast this was build using Google alone. The image we see at Google at the moment might be weeks or years old, and he would have to have not one, but at least two images from known dates to make that call.

author: tinhead
author_rank: Super Contributor
timestamp: January 11, 2013, 01:09:06 am
content: Quote from: Bored@Work on January 11, 2013, 12:09:01 amyep, it takes months.>> Re: What Did Google Earth Spot in the Chinese Desert? An Ex-CIA Analyst Isn’t Sure )why he can't simply call Chinese gov and ask them? Or even better, why is he not using the pictures from spy satelites? They much better, there is no need to use google crap for investigations.

author: andersm
author_rank: Super Contributor
timestamp: January 11, 2013, 01:17:08 am
content: Quote from: Bored@Work on January 11, 2013, 12:09:01 amGoogle Earth has had the ability to show historic imagery for maybe a couple of years now. It's just a matter of how often a particular patch of data has been updated.

author: Mechatrommer
author_rank: Super Contributor
timestamp: January 11, 2013, 11:53:15 am
content: the last time i checked google earth is where i live in now. it only showed flat land, no construction no tractor nothing, its been 3-4 years by then when the housings are fully completed.edit: and oh, you also want to check out whats on the saudi arabia deserts. you will want to "go up there in an incredible hurry"

author: SeanB
author_rank: Super Contributor
timestamp: January 11, 2013, 01:50:07 pm
content: Lo0oks like a waste dump for toxic/nuclear waste, with the buildings above built to provide a processing facility for future expansion. Trench, fill then cap and cast a concrete cover. Then build the processing facility for the next ones on top so you can maximise site utilisation.
Rigol DS1052E - Page 1
Forum section: electronics / general

author: snipersquad100
author_rank: Frequent Contributor
timestamp: January 10, 2013, 04:16:37 pm
content: Hi, can any one help?I bought a rigol ds1052e oscilloscope, unpacked it turned it on and the bloody menus are in chinees.as im in the UK English would be better.thanks guys

author: mianchen
author_rank: Regular Contributor
timestamp: January 10, 2013, 06:01:58 pm
content: Menu -> Utility -> Language

author: PA0PBZ
author_rank: Super Contributor
timestamp: January 10, 2013, 06:59:34 pm
content: Quote from: mianchen on January 10, 2013, 06:01:58 pmAnd Utility and Language in chinese is....?Ah ok, it's the utility button and then the 4th soft button, which says "Language" even when set to chinese.

author: Thomas
author_rank: Regular Contributor
timestamp: January 10, 2013, 07:05:54 pm
content: It says "Utility" on the button, in englishThen press the second lowest function button (number 4 from the top).Bah, too late

author: mianchen
author_rank: Regular Contributor
timestamp: January 10, 2013, 11:18:04 pm
content: ok, sorry I was too lazy to post more words with my phone.just follow 1 -> 2 -> 3 as shown in the picture.

author: PA0PBZ
author_rank: Super Contributor
timestamp: January 11, 2013, 08:31:10 am
content: No need to press the Menu button.
Not sure what this is ??? - Page 1
Forum section: electronics / general

author: TorqueRanger
author_rank: Frequent Contributor
timestamp: January 04, 2013, 12:35:34 am
content: I picked this up and I am not sure what it is beside the simply fact that it's a 15" monitor mounted in a full metal case... The thing turns on and seems to work but I found I have to sell it and not even sure what's it worth...

author: Stephenniall
author_rank: Contributor
timestamp: January 04, 2013, 12:52:51 am
content: Looks like a standard LCD Monitor, Probably not worth much nowadays. By the case, and the rubber membrane switches, I'm guessing this might have been out of maybe something commercial, Like a Point of sale system, Something along them lines ?Purely a guess.Stephen

author: TorqueRanger
author_rank: Frequent Contributor
timestamp: January 04, 2013, 12:56:52 am
content: Sorry I forgot to post a pic of the metal back on here ... But It's a portable monitor but for what I don't know ...

author: TerraHertz
author_rank: Super Contributor
timestamp: January 04, 2013, 02:21:11 am
content: Quote from: TorqueRanger on January 04, 2013, 12:56:52 amWell why don't you then?You also forgot to set your profile to say which country and city you are in. Which is kind of an important issue, for anyone considering buying a garden variety smallish LCD monitor, in unknown working state, that's worth very little but would cost a fortune to ship internationally. You're really only going to be able to sell that to someone who's able to easily come and pick it up in person.Incidentally, I'm looking for a cheap VESA mountable LCD monitor/TV, about 50cm/20" diagonal, BUT must have at least one composite PAL video input as well as the usual VGA/DVI (and maybe HDMI.) In South Sydney area.

author: randyhenke
author_rank: Newbie
timestamp: January 11, 2013, 05:26:37 am
content: As was said above it looks like a point of sale monitor they would use, however now days most of those are touch screen, which I couldn't tell from looking at the picture, but I don't think it is. With the connectors inside the case I doubt it was for personal use. I'm going to assume from it being in a metal case vs. plastic case and the connectors inside it might have been used as a display to showcase a new product inside a store.

author: Stonent
author_rank: Super Contributor
timestamp: January 11, 2013, 06:42:24 am
content: It's common to see monitors like this in a manufacturing environment.
Help Fixing Tektronic 2246 oscilloscope. - Page 1
Forum section: electronics / general

author: Agenthector
author_rank: Newbie
timestamp: January 10, 2013, 06:57:24 pm
content: I recently picked up an old Tek 2246 at a pawn shop for only 50 bucks and it has worked perfectly till today.The left half of the crt screen will no longer display the sweep and will look like noise while the right side of the crt will properly display the sweep. When the problem started, only a quarter of the crt was affected and it slowly increased to half the screen. I attached some screenshots of the scope with a 1kHz sine wave and the service menu. Any help troubleshooting this would be appreciated.

author: Thor-Arne
author_rank: Unknown
timestamp: January 10, 2013, 07:30:50 pm
content: That's about the strangest thing I've seen on a oscilloscope.Do you have the service manual for the scope (I'm looking for that to) ?

author: Homer J Simpson
author_rank: Super Contributor
timestamp: January 10, 2013, 07:36:17 pm
content: Try the Yahoo TekScopes forum.I hang out there a lot. A great resource for Tek repairs.KT

author: Agenthector
author_rank: Newbie
timestamp: January 10, 2013, 08:01:34 pm
content: @Thor-Arne: (http://elektrotanya.com/tektronix_2246a_sm.pdf/download.html) This is where I found the service manual.@ Homer J Simpson: Thanks Ill check it out.

author: Thor-Arne
author_rank: Unknown
timestamp: January 10, 2013, 08:23:12 pm
content: Agenthector, thanks a lot.Spent hours looking for it.

author: robrenz
author_rank: Super Contributor
timestamp: January 10, 2013, 09:01:32 pm
content: I don't know squat, but it looks like part of it is there may be a delayed/intensified sweep going on. Could be just a thorough switch cleaning session may get rid of part of the problem. That is no small task, I mean total disassembly, clean and lube of every pot and switch.
Help With MP1584 Data Sheet - Page 1
Forum section: electronics / general

author: SgtRock
author_rank: Unknown
timestamp: January 10, 2013, 01:00:18 am
content: Greetings EEVBees:--I am trying to repair a monitor scaler board which has the MP1584LN Stepdown Converter on it. My problem is that I do not understand why the Typical Application indicates 10 pins, and yet the physical package has only 8, see attached pictures. Would someone please explain? The full Data Sheet can be seen at the link below.http://www.datasheet.co.kr/datasheet-html/M/P/1/MP1584_MPS.pdf.html"I wear suspenders and a belt. I am a security man all the way"Justin Wilson (The Cajun Cook) 1914 - 2001Best RegardsClear Ether

author: ElektroQuark
author_rank: Unknown
timestamp: January 10, 2013, 07:37:00 am
content: Forget about pin numbers. Use pin names and your are done.

author: bitwelder
author_rank: Super Contributor
timestamp: January 10, 2013, 06:20:50 pm
content: If you check the datasheet, at page 15 the same 'typical application' shown on the front page is presented again, but this time using the 8 pins format, and the pin count to 8 seems consistent throughout the whole document (except the initial diagram). Follow the 8 pins schema.

author: SgtRock
author_rank: Unknown
timestamp: January 10, 2013, 08:43:06 pm
content: Greetings EEVBees:--Thanks all. I see now how obvious my error was. I was punch drunk from 10 hours of dis-assembly de-soldering, metering, and diagnosis. For any that are interested I was working on an Acer S231HL. You can find the full thread and pictures over at Badcaps.net. Thanks all for tolerating my ignorance."He was born ignorant, and has been losing ground ever since."Fred Allen 1894 - 1956Best RegardsClear Ether
HP Multimeter 3457A ERROR 9 - Page 1
Forum section: electronics / general

author: member_xyz
author_rank: Contributor
timestamp: January 10, 2013, 10:49:13 pm
content: Just received HP 3457A Bench Multimeter that keeps coming up with Error 9 "Not Calibrated" with beeping.Unit passes initial self test with no hardware errors.Error can be cleared briefly but reappears with change of input function and even change in input readings.Auto calibration doesn't change anything.Input measurements DCV, ACV and current are about 4-5% lower than should be. Haven't checked resistance measurement yet.Initial internal inspection does not reveal anything wrong at first glance.Power supply voltages +5V for Logic and Analog section appear OK so do +15V and -15V appear OK.Reference voltages +10V and -10V are about 150mV out and -1.25V is about 15mv out, not sure if they should be more accurate.Before I start looking into it in much more detail I would appreciate if anyone familiar with this multimeter can offer any advice.Cheers.

author: member_xyz
author_rank: Contributor
timestamp: January 11, 2013, 04:31:25 am
content: For testing purposes have roughly re-calibrated zero and gain for mid DCV ranges and it appears to be measuring OK and stable. Reference zener LM399H is spot on 7V and appears stable.At this stage it looks like all it needs is detailed calibration. Can't find any reference in service manual for error "9 NOT CALIBRATED", not sure if 9 is some item number as there is no mention of ERROR 9 anywhere, and there is only one item in the ERROR log?Intention is to use this meter in automated setup for low DCV, DCma and resistance where accuracy is not critical, 0.5% will be OK, so hopefully I can calibrate it against my very accurate HP 34401a.I would still appreciate comments from people that are more familiar and experienced with 3457A.Cheers.

author: poodyp
author_rank: Regular Contributor
timestamp: January 11, 2013, 05:14:13 am
content: Have you checked the EEPROM battery backup? If it's dead and the EEPROM is dead the meter will probably complain until a full calibration is done.

author: member_xyz
author_rank: Contributor
timestamp: January 11, 2013, 05:35:51 am
content: Battery is OK at 3.3VMeter is now behaving OK on re-calibrated DCV ranges.But it definitely needs full calibration.Any alternative ideas about calibrating difficult FULL ranges like 300v DC, don't have access to accurate 300v DC source?
Video from an engineer's perpective (From the Earth to the Moon) - Page 1
Forum section: electronics / general

author: rbola35618
author_rank: Frequent Contributor
timestamp: January 10, 2013, 06:23:43 am
content: I too sometimes feel this way when I design and build stuff; I have two supplies flying in space, one of them to Pluto.The Apollo program was the most exciting time for space exploration. I remember watching Neil Armstrong and Buzz Aldrin stepping out from the LM. What an engineering feat.It is sad that we no longer have the will nor the commitment for manned exploration of space.

author: EEVblog
author_rank: Unknown
timestamp: January 10, 2013, 06:42:59 am
content: I just watched this episode last night, it's a great series.I loved the engineering banter in that episode, trying to design the LM, even the wife found it quite funny.Dave.

author: rbola35618
author_rank: Frequent Contributor
timestamp: January 10, 2013, 06:51:52 am
content: This episode is my favorite from the series because the the engineering compromises that happen in real life engineering.

author: Psi
author_rank: Super Contributor
timestamp: January 10, 2013, 07:18:03 am
content: Discovery channel - 'Race to mars' is quite good if you can look past mediocre acting.It's a movie/miniseries about a manned trip to mars with realistic problems that might be encountered.Although, it's not of the same quality/budget as "From the earth to the moon"
Xantrex DCS DC Supply schematics/service manual - Page 1
Forum section: electronics / general

author: king.oslo
author_rank: Frequent Contributor
timestamp: January 10, 2013, 03:27:25 pm
content: Hello there,I scored a Xantrex DCS 3kW (Rebranded Chroma) DC supply on eBay. It fires up, but no VOUT. The Remote operation LED lights up, but seems impossible to switch off. It appears to have been dropped on its face at one point in its life.I have been poking around in there. When I pull up the non-inverting terminal of the switch mode converter to 3V from a bench PSU, I get an output voltage, but the 5V rail browns out (strange), and the converter makes a loud noise which kind of sounds like when cartoon character gets electrical shock. Strange.Anyways, does anyone have any schematics for these power supplies?Thank you for your time.Kind regards,Marius

author: SeanB
author_rank: Super Contributor
timestamp: January 10, 2013, 03:40:06 pm
content: Is it not set to remote operation, and you need to make a link or flip a switch to enable local control? Might need to connect a few terminals inside.

author: king.oslo
author_rank: Frequent Contributor
timestamp: January 10, 2013, 04:18:44 pm
content: Yes, that helped. Now it is no longer in constant Remote operation mode. Now it seems to be in current limiting, despite no load.

author: king.oslo
author_rank: Frequent Contributor
timestamp: January 10, 2013, 04:52:52 pm
content: Works now. Wohoo!And I got some schematics mailed over to me. The schematics are attached in case somebody finds themselves in the same situation as I was. This is relevant to all Xantrex DCS 3000W, and Sorensen DCS 3000W and all the other rebranded versions such as my Chroma 6230K.Thank you for your time.Kind regards,Marius