hybridfree/eevblog-posts huggingface dataset:
Do you know any graphic interface for HP 34401A using SCPI over RS-232? - Page 1
Forum section: electronics / general

author: carloscuev
author_rank: Regular Contributor
timestamp: November 14, 2012, 05:03:32 am
content: Hello, I recently purchased an HP 34401A from eBay, it works great but I'm trying to find some sort of PC software like the UltraDMM for Uni-T's and all that kind of PC software that comes with comms-enabled DMMs.I've fired up a serial terminal sent some commands and got back measurements, and I was sure there already was some kind of 3'rd party software that managed all the serial comms and enabled the user to easily data-log, plot, etc. using this SCPI protocol over RS-323, now I'm thinking I was wrong.Do you know about any software that talks SCPI over RS-323 to manage and get measurements easily from a DMM ?Thanks.

author: free_electron
author_rank: Super Contributor
timestamp: November 14, 2012, 04:02:00 pm
content: Download agilents benchlink for the 34401. That is what you are looking for. It's free.All their base machines come with benchlink

author: carloscuev
author_rank: Regular Contributor
timestamp: November 15, 2012, 12:09:34 am
content: Thanks man! I got my multimeter used from eBay with nothing but the unit and AC cable so have to figure out the PC Software side on my own

author: carloscuev
author_rank: Regular Contributor
timestamp: November 15, 2012, 12:49:18 am
content: Are you sure there's a Benchlink for 34401A ? I've only found it for 34970A/34972A

author: free_electron
author_rank: Super Contributor
timestamp: November 15, 2012, 01:45:25 am
content: http://www.home.agilent.com/agilent/software.jspx?cc=US&lc=eng&ckey=1000000875:epsg:sud&nid=-35491.536882050&id=1000000875:epsg:sudused to be called benchlink. i have the cd's somewhere. they now call it intuilink. still free . avaialble for a whole slew of machines. above link gets you the free download for the 34401

author: carloscuev
author_rank: Regular Contributor
timestamp: November 15, 2012, 07:04:09 pm
content: Quote from: free_electron on November 15, 2012, 01:45:25 amThank you very much, it's only a Excel or Word toolbar that enables you to log measurements, but sadly I can't make it work. I can control the DMM with terminal commands, but the Excel toolbar doesn't finds the instrument, Agilent IO Control software also finds the device and lets me send commands and read ID info correctly.
Service manual for LeCroy LA314H / Iwatsu SS-7847A Oscilloscope - Page 1
Forum section: electronics / general

author: ramos289
author_rank: Newbie
timestamp: November 13, 2012, 03:05:29 am
content: Anyone know where I can get my hands on a copy of the service manual for the LeCroy LA314H / Iwatsu SS-7847A oscilloscope? I have one for the SS-7810 which is similar but the reference designators on the schematics are different which makes it a royal pain trying to debug a problem with the power board. I'm more that willing to buy one but I've gotten no response from LeCroy.Thanks!- Brian

author: ramos289
author_rank: Newbie
timestamp: November 13, 2012, 06:13:40 pm
content: Ok never mind, LeCroy got back to me and I've purchased one for $106.
RIGOL 1308A Power Supply IP Address setting - Page 1
Forum section: electronics / general

author: frequencydrive
author_rank: Newbie
timestamp: November 13, 2012, 07:23:59 am
content: I have a Rigol 1308A triple output power supply. I have set the IP address on it (192.168.1.201) and can ping it from anywhere on my network. I set the IP address to "manual" and uncheck the DHCP and AUTOIP checkboxes. When I turn the supply off it clears the IP address and resets the power supply to DHCP so I can't ping it anymore or access it using Labview. Does anyone have experience with these power supplies? I tried saving the setting and then recalling them after turning it back on but apparently the IP address isn't a setting that gets saved when you save your settings. That really pisses me off. Do they think you want to manually enter the IP address every time you turn on the power supply?
How do you power up your projects from batteries? - Page 1
Forum section: electronics / general

author: aluck
author_rank: Regular Contributor
timestamp: November 12, 2012, 12:22:42 pm
content: I have a simple project built around ATMega8. It powers from a standard 9V battery with following 7805 regulator.Unfortunately, it has quite a lot of quiescent current. In a sleep mode ATMega consumes around 0.8 mA when powered from 5V source directly, but powered from 7805 it is more like 3.8-4.0 mA. It approximates for about 2 months lifetime for 9V battery.Is there any good way to minimize current?

author: deephaven
author_rank: Frequent Contributor
timestamp: November 12, 2012, 12:28:58 pm
content: Use a low quiescent regulator like an MC78LC50NTRG

author: aluck
author_rank: Regular Contributor
timestamp: November 12, 2012, 03:52:14 pm
content: Nice! Thanks.
Fake Mayan Conman Doing The Rounds  - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 11, 2012, 11:10:04 pm
content: so this guy calimes to be a descendant of civilization that collapsed and died 800 AD yeah........heres the blerbThe ancient Maya, with their advanced science, saw clearly the galactic and solar events leading up to the new age that will arrive around the 2012 date. Their calendars not only counted time with incredible precision but more importantly charted the fluctuations in human consciousness throughout time.

author: tom66
author_rank: Super Contributor
timestamp: November 11, 2012, 11:21:04 pm
content: I am having the most epic party on Dec 21st. Counting down the days til the end of the world. And if I wake up on the 22nd, I will be sorely disappointed.

author: Alana
author_rank: Frequent Contributor
timestamp: November 12, 2012, 12:51:44 am
content: Been there seen that...People want to have something special since typical spirituality, in my part of the world - christianity became obsolete and basically "lacks anything divine". So they listen to anyone who says something mistical, usually based on scientific facts mixed with pure fiction.

author: EEVblog
author_rank: Unknown
timestamp: November 12, 2012, 02:51:49 am
content: Dave.

author: cloudscapes
author_rank: Regular Contributor
timestamp: November 12, 2012, 04:16:25 am
content: Quote from: EEVblog on November 12, 2012, 02:51:49 am"That'sbehindyour question,isn't it?!?"love that guy!

author: Lightages
author_rank: Unknown
timestamp: November 12, 2012, 05:37:28 am
content: The funny thing behind all of this, is that archeologists found the "homework" that the calendar maker was doing before adding the information to the calendar proper. Anytime you see woowoo bullshit, the woowoo idiots like to ignore anything that is new and changes their basis for belief.

author: McMonster
author_rank: Frequent Contributor
timestamp: November 12, 2012, 09:24:19 am
content: Quote from: Sionyn on November 11, 2012, 11:10:04 pmEnd of the world is BS, but this isn't actually wrong, Mayan civilization is gone, but the people didn't die out and they still live there.

author: G7PSK
author_rank: Super Contributor
timestamp: November 12, 2012, 09:49:47 am
content: The end of the world is not bullshit, you just have to hang around long enough, like 4 billion years.

author: Kremmen
author_rank: Super Contributor
timestamp: November 12, 2012, 10:55:09 am
content: Quote from: McMonster on November 12, 2012, 09:24:19 amSure. But that is almost the same as saying the Cro-Magnon caveman civilization is gone but we all still live here. Any connection of these people to the ancient Maya is just quaint folklore and tourist show. The Maya culture is properly dead and gone.
Trains - Page 1
Forum section: electronics / general

author: poptones
author_rank: Frequent Contributor
timestamp: November 12, 2012, 07:34:11 am
content: Every night I seem to find myself watching train videos on youtube. I try to stop, I try watching kittens play and then some wise guy at youtube sticks a link to a train video in there.It's like it knows."Hey, watch me make this guy click a train video."Then, five minutes later, I realize I could just drive over to the track crossing and wait, or I can watch here anytime. It's like trains on demand. "Hey, check it out. I can have all the fun of waiting on a train crossing right here in my own living room."

author: Rerouter
author_rank: Super Contributor
timestamp: November 12, 2012, 07:42:52 am
content: while i do not understand your love of watching trains... i can contribute that youtube uses either your account or local cookies to keep track of what videos you have watched and will slip in links to ones similar to your popular subjects even when drastically off topic (link to mythbusters while watching op amp theory)

author: Psi
author_rank: Super Contributor
timestamp: November 12, 2012, 07:55:15 am
content: Yeah, if you watch videos about X you will find lots more videos about X in your random search results.

author: peter.mitchell
author_rank: Super Contributor
timestamp: November 12, 2012, 08:04:51 am
content: While you may always end up watching train videos, I generally end up on product reviews :S Of stuff I don't even want to buy!

author: Psi
author_rank: Super Contributor
timestamp: November 12, 2012, 08:31:46 am
content: I always end up watching sacriel's DayZ videos, then i have no time left to play the actual game myself

author: peter.mitchell
author_rank: Super Contributor
timestamp: November 12, 2012, 08:59:03 am
content: That game is just a hiking simulator with bits and pieces of redneck thrown in

author: Psi
author_rank: Super Contributor
timestamp: November 12, 2012, 09:00:36 am
content: hehe yeah. I cant explain why, but that game is just so addictive.
Flying pig? - Page 1
Forum section: electronics / general

author: spinnaker
author_rank: Regular Contributor
timestamp: November 11, 2012, 12:54:27 am
content: Hey Dave, where did you get the flying pig that appears in one of your videos? I want one!

author: Unknown
author_rank: Unknown
timestamp: November 11, 2012, 01:07:04 am
content: Quote from: spinnaker on November 11, 2012, 12:54:27 amYou could try contacting aMr W SwanC/O APHCanberra AustraliaHe is believed to be a world expert in procurement of these.

author: EEVblog
author_rank: Unknown
timestamp: November 11, 2012, 02:28:56 am
content: No idea, a colleague got him from an Asian market somewhere...Dave.

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: November 11, 2012, 02:30:33 am
content: Pink Floyd concert?

author: Ed.Kloonk
author_rank: Super Contributor
timestamp: November 11, 2012, 02:33:16 am
content: Quote from: Uncle Vernon on November 11, 2012, 01:07:04 amHahahaI always perceive him more like that Black Knight in that Monty Python movie when he speaks about the economy.

author: Psi
author_rank: Super Contributor
timestamp: November 11, 2012, 03:49:18 am
content: They have been around for ages, my sister bought one like 10 years ago.

author: vk6zgo
author_rank: Super Contributor
timestamp: November 11, 2012, 08:02:33 am
content: Quote from: Ed.Kloonk on November 11, 2012, 02:33:16 amIn speech,maybe,but Paul Keating LOOKS more like him!Way back in the day when Andrew Peacock was Opposition Leader & John Howard was his Deputy,I was struck by their distinct resemblance to Danger Mouse & Penfold ---- You don't need to be told which one was Penfold!

author: firewalker
author_rank: Super Contributor
timestamp: November 11, 2012, 08:09:30 am
content: Ebay has some flying pigs!http://www.ebay.co.uk/itm/Battery-Powered-Flying-Pig-/321003331706?pt=LH_DefaultDomain_3&hash=item4abd4a207aAlexander.
proper fuse for lead-acid battery - Page 1
Forum section: electronics / general

author: rr100
author_rank: Frequent Contributor
timestamp: November 10, 2012, 06:30:06 am
content: The talk about "proper" multimeter fuses got me thinking: I'm using a car battery as a buffer for a stationary project. Coming from both terminals I put some flat "automotive" fuses (I think around 10 amps).Will these protect against "straight shorts"? As in just break open the circuit without any other drama? I assume they'll just melt/vaporize and arching shouldn't be a an issue at such a low voltage. But is it anything I'm missing here?

author: HackedFridgeMagnet
author_rank: Super Contributor
timestamp: November 10, 2012, 06:39:14 am
content: should be fine. I assume they are designed for this.I think the fault currents for a car battery maybe in the hundreds of amps, not the thousands that are possible in a switchboard.

author: bilko
author_rank: Frequent Contributor
timestamp: November 10, 2012, 09:51:09 am
content: The fuses should be sized to protect the wiring. 10A fuses are OK providing that you are not using thin wire that will melt / burn before the fuse blow. I would use 2.5mm minimum wire for 10A fuse and install the fuse close to the battery.

author: SeanB
author_rank: Super Contributor
timestamp: November 10, 2012, 11:14:20 am
content: If you are using high current out of the battery use the bigger audio fuses, these are available in ratings from 20 to 100A and are gold plated so they suffer less from corrosion. Short wiring in thick cable from the battery to the fuse is recommended.

author: G7PSK
author_rank: Super Contributor
timestamp: November 10, 2012, 11:20:14 am
content: A car battery can give amperage into the thousand mark but the time required for the chemical reaction inside to get to this level will see the slowest of fuses in the tens of amps range blow long before this can happen.
Mastech MY-60 (Rapid 318) multimeter question - Page 1
Forum section: electronics / general

author: steve30
author_rank: Frequent Contributor
timestamp: November 10, 2012, 08:57:44 am
content: Does anyone own one of these multimeters?http://www.rapidonline.com/Test-Measurement/318-Digital-LCD-multimeter-31050If so, I was wondering what they are like for accuracy and build quality etc. According to the documents on Rapid's site, it looks like they have been making it since the mid 1990s. I wonder if much has changed in it since then.I'm not buying one as I already have much better multimeters, but I have recently been using a couple of these at college, so was wondering what they are like inside, and I'd rather not take apart someone else's.

author: ttp
author_rank: Regular Contributor
timestamp: November 10, 2012, 10:47:58 am
content: I got one very similar, clearly made by same people at same time. It uses standard IC's (TL062's, TL072's, one 4000 CMOS logic and "black blob" main IC, that's what I remember but there were more ICs) so it's quite possible it was designed late 1980's or 1990's. Definitely built to price from what I remember when I got it open. I've paid about 10 quid in aussie dollars, just don't remember how long ago I got it. I wouldn't rely on it as my only meter but I can check mine against calibrated Fluke and Keithley and it's not far out so I'm using it sometimes. It has many trimpots inside to calibrate but no description on PCB so it would be a time consuming process to find out what trimpot is related to which function. I've never bothered finding out as mine is close enough for what I use it for.

author: steve30
author_rank: Frequent Contributor
timestamp: November 10, 2012, 10:50:04 am
content: There's a Chinglish service manual linked on the Rapid site, and that confirms that the blob chip is an ICL7106.
Tutorial Videos on Basic Circuits - Page 1
Forum section: electronics / general

author: rbola35618
author_rank: Frequent Contributor
timestamp: November 10, 2012, 03:44:24 am
content: Below is a link to some videos that my professor Dr. Ken Noren posted on Basic circuits. He passed away in February of 2012. Was surprise to find these videos and thought that they would be usefull to people who may want to brush up on the subjects.The video I use the most in my line of work is the "DC none ideal Effects of Op Amps"http://vimeo.com/user5873846/videos/sort:newestRobert
Installing a touch screen on a laptop - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: November 08, 2012, 06:00:28 pm
content: Hello, As you all probably know Windows 8 has just come out. As of right now I have it but would like to use the touch fetchers on it. Unfortunately my lap top does not have a touch screen at the moment and I have been thinking of just upgrading the display. I have a HP pavilion DV7, and I know that there is a touch screen option for this computer. I have not been able to find online weather the touch display is actually compatible with my laptop or even find where to buy the display itself.If anyone can give me any information on upgrading to touch screen or if I should just sell this laptop and buy another laptop with a touch screen on it please replay.thank you

author: amyk
author_rank: Super Contributor
timestamp: November 09, 2012, 06:11:49 am
content: The easy way is obviously to just buy a new one, but if you're into electronics modding you might like the challenge. I haven't been able to find much mention of a DV7 with touchscreen (did you mean DV6?) but you can try finding the schematics and comparing. The touchscreen will likely use a USB interface along with the standard LVDS, and if the signals match up you might be able to do this.

author: G7PSK
author_rank: Super Contributor
timestamp: November 09, 2012, 04:47:40 pm
content: The only touch screens I have had any experience with are Panasonic toughbooks and the drivers for those come under mouse and touch pad.

author: whatchitfoool
author_rank: Contributor
timestamp: November 09, 2012, 06:16:47 pm
content: Its going to be cheaper, better, get it sooner, and will get a faster laptop if you just buy a new one.

author: NiHaoMike
author_rank: Super Contributor
timestamp: November 10, 2012, 01:55:38 am
content: Get a piece of glass or Lexan, a bunch of IR LEDs and phototransistors, some electronics, and have at it!http://themegdavis.com/multitouchscreen.htmlIt would probably take something bigger than a laptop screen to get a good resolution. A large monitor or TV would be a better candidate.
Green power export record - Page 1
Forum section: electronics / general

author: madires
author_rank: Super Contributor
timestamp: November 09, 2012, 02:04:59 pm
content: During the first three quarters of 2012 Germany exported 12.3TWh power (mostly green power) to EU neighbours. Just FYI for green power sceptics :-)

author: Unknown
author_rank: Unknown
timestamp: November 09, 2012, 02:47:50 pm
content: Quote from: madires on November 09, 2012, 02:04:59 pmThe point being? Have you factored in the cost of generation? Or the fact that much of the manufacture of all the green generation equipment was also exported to third world countries so it doesn't appear on any emissions tally?Don't get me wrong it's good that Wealthy Germany can take a lead and to some degree subsidise poorer neighbors. It is good that alternate generation technologies is being implemented, but don't go reading too much into a KW export figure.
ITead Sample/Reference Board - Page 1
Forum section: electronics / general

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 08, 2012, 02:56:43 pm
content: this is one from 2 open source board i got. pretty good as a quick reference esp beginner like me imho. it may show how much limit they can go to i think. but i hope i will never get the same 2nd board when i order from them again next time until i lost it.

author: FenderBender
author_rank: Super Contributor
timestamp: November 08, 2012, 04:31:51 pm
content: Do they give these away?

author: 8086
author_rank: Super Contributor
timestamp: November 08, 2012, 04:35:32 pm
content: Sounds like they were giving them away at a trade show or something.

author: jabramo
author_rank: Regular Contributor
timestamp: November 08, 2012, 08:03:35 pm
content: There's an option to make your board open source. They will make 12 boards and sent 10 to you and 2 to random people and you get two random boards

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 08, 2012, 11:13:36 pm
content: Quote from: FenderBender on November 08, 2012, 04:31:51 pmits one of the two random open source boards. so i got this reference board and another reprap board (posted on another thread). so basically the answer is yes (by ticking the open source board as jabramo explained) but if itead is me, i should not treat this board as free OSHW free package since its of no usefullness other than reference to company's detail. i should treat this as a special kind of "business card".

author: LEECH666
author_rank: Frequent Contributor
timestamp: November 08, 2012, 11:49:15 pm
content: I got that same board + 5$ redeemable code + some crimped jumper wires (female on both ends) as the super suprise gift for spotting an error in their (back then) new iMall shop.Cheers,Florian

author: tom66
author_rank: Super Contributor
timestamp: November 09, 2012, 12:15:02 am
content: Itead have certainly upped the quality; looks much better than their previous boards. And for what, $10 plus $5 shipping? Not bad....

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 09, 2012, 04:27:19 am
content: Quote from: tom66 on November 09, 2012, 12:15:02 ami'm not sure since this is my first order and a newbie. but i think their tin plating can be improved. inspecting my board, there slightly excessive tin/solder on the pads (through hole or smd) esp on bottom side. maybe for through hole parts this is no problem at all, but for smd where i want part to stick tight to the board (for efficient heat transfer), this can be a little extra effort, but i dont know i'm newbie. but its not that bad at all though. its not that excessive, only slightly, and i'm still ok with that. YMMV.

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 09, 2012, 04:53:25 am
content: and just lettin people know. i ordered many items from them including the pcb. i got one item wrong. i ordered 4x4 keypad but they packed 4x3 keypad, already notify them, see what they can do.
Smart Grid in the EU - Page 1
Forum section: electronics / general

author: Write_to_Smokegenerator
author_rank: Regular Contributor
timestamp: November 08, 2012, 02:24:06 pm
content: Hi everyoneI recently found out that I must've lived under a rock for a couple of years, didn't hear anything about this topic so far.I'm quite excited for that thing to happen, but I'm really easy excitedToday I learned that there are some projects about smart meters in my country so I did check the website from a local power supplier and they claimed that up to 2020 80% of the households in the Eu should have a smart meter for measuring energy demand. I did check out the documents they mentioned and found that goal up to 2020, I didn't bother to look for the 80% claim, but I'm sure it will be there as well, unfortunately I couldn't find any English links for that only German ones, so sorry maybe if you search a bit you'll find them. But I believe you can find some information here:http://www.smartgrids.eu/according to the English wikipedia the Italian project by the company ENEL is quite goodQuoteThe local power supplier claimed that the widespread installation of these meters could start in 2014.So my question is:Do you think it'll be possible for the EU to get the i done till 2020?Also will this have a huge effect on the energy efficiency that is claimed that smart meters would bring?also if someone has more information regarding that topic please sharecheers.

author: SLJ
author_rank: Frequent Contributor
timestamp: November 08, 2012, 03:36:08 pm
content: It will be great. And if your paranoid just remember they will be able to figure out all kinds of things about you. When you aren't home, the time you go to bed and get up, when you go to work, if your growing pot in your attic, the list is endless.

author: madires
author_rank: Super Contributor
timestamp: November 08, 2012, 03:45:31 pm
content: Quote from: Write_to_Smokegenerator on November 08, 2012, 02:24:06 pmYes.QuoteNo. The funny thing about smart meters is that they need more power than the classic ones. And they also need some way to communicate (GSM, Internet, WLL or PLC). People interested in their power usage already got one those inexpensive power meters for plugging into the wall socket.QuoteThere are a lot of security and data privacy issues. 1/3 of the smart meters in the US send their data unencrypted. Several smart meters are hacked succesfully. Websites of the utility providers too. When the hype started one major promise was that smart meters would select the cheapest tariff and control machines to save money, e.g. running the washing machine in the night when power is less expensive. Currently you can watch your power usage at a website and nobody needs to read your meter locally. And the fixed charge is higher. That's all. Great concept :-(
Old TV Tech ads - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: November 11, 2012, 06:49:41 am
content: Alan Garfield found this gem:Post you old TV tech ads here, the more cringe worthy the better!Dave.

author: firewalker
author_rank: Super Contributor
timestamp: November 11, 2012, 07:02:39 am
content: We never had those "stupid" types of commercial in Greece.A 1982 THOMSON - BRANDT tv-set commercial." THOMSON - BRANDT " ( 1982 )And a 1981 Siemens one." SIEMENS " ( 1981 )

author: david77
author_rank: Frequent Contributor
timestamp: November 11, 2012, 07:36:10 am
content: That Siemens ad is great, pity I can't understand a word.In the last image with th Siemens logo they even show my first set, the small one on the left. It was in use until 4 or 5 years ago when the DST failed. I replaced it with a bigger brother. Siemens actually never made a TV set they sold rebaged Blaupunkt sets. Wich was a good choice, AFAIK Blaupunkt installed Europes first computer controlled quality control in their production line around 1978 and were able to lower QC issues and later repairs quite dramaticly.My 1983 vintage Blaupunkt telly works brilliantly 29 years later.

author: Bored@Work
author_rank: Super Contributor
timestamp: November 11, 2012, 07:40:00 am
content: And a special kind of technology:And don't forget about the classic, non tech related::

author: firewalker
author_rank: Super Contributor
timestamp: November 11, 2012, 07:48:41 am
content: Quote from: david77 on November 11, 2012, 07:36:10 amIt says about the excellent know-howkand high standards of Siemens in telecommunication and electronics, at the beginning. Afters it points that you can make use of this acquiring a Siemens tv-set with perfect clear colors, a remote control, perfect sound etc.

author: IanB
author_rank: Super Contributor
timestamp: November 11, 2012, 08:02:27 am
content: Here's a failure to predict the future:

author: IanB
author_rank: Super Contributor
timestamp: November 11, 2012, 08:10:19 am
content: As for Paul Hogan, I always remember this one:

author: stixy
author_rank: Newbie
timestamp: November 11, 2012, 11:46:19 am
content: I came across this video last year. Some of the youtube comments suggest it isn't actually an ad. It's still brillant though!

author: LEECH666
author_rank: Frequent Contributor
timestamp: November 11, 2012, 12:13:22 pm
content: A classic ...... I bet you've seen it before.Cheers,Florian

author: madworm
author_rank: Frequent Contributor
timestamp: November 11, 2012, 06:20:01 pm
content: That man IS insane.

author: Achilles
author_rank: Regular Contributor
timestamp: November 11, 2012, 08:42:36 pm
content: Quote from: Sionyn on November 11, 2012, 08:37:54 pmI do prefer the Citroen-classics

author: peter.mitchell
author_rank: Super Contributor
timestamp: November 12, 2012, 08:20:52 am
content: Not as old but still funny none the less.

author: vk3yedotcom
author_rank: Frequent Contributor
timestamp: November 12, 2012, 09:32:32 am
content: Dick Smith Electronics - 1982
Just a Ordenry Day On The Tube, Then This - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 13, 2012, 06:26:16 pm
content: Darwin award, poor womanhttp://itm.im/drunk

author: Prizmatic
author_rank: Regular Contributor
timestamp: November 13, 2012, 08:00:08 pm
content: Drunk? Austerity measures, too tight to buy a treadmill.

author: SeanB
author_rank: Super Contributor
timestamp: November 13, 2012, 08:18:16 pm
content: At least he was not doing like the guy I saw this last week. Missed his turn off, no problem, turn and drive up the on ramp with his full mini bus taxi.Best was still when driving on the Great North freeway, when a taxi came out of a massive cloud of dust and bushes, woke up and saw he was on the wrong side of the road, turned and went back through the centre divider bushes and ditch to the other side.......Still trying to figure out how another one managed to park a Peugot 504 station wagon on top of the only Acacia tree for kilometres without breaking the fence next to the road. I know how the one got parked on the toll booth, but still cannot figure how that large ( really large, really really reallly large, extra wide does not come close) operator got through the cash window and not the locked door.

author: Unknown
author_rank: Unknown
timestamp: November 13, 2012, 08:19:33 pm
content: Bless him, he's just getting some training in for the work xmas party!

author: poptones
author_rank: Frequent Contributor
timestamp: November 13, 2012, 08:50:39 pm
content: Apparently we don't get any video this side of the pond.But on a brighter note, Keira Knightley's breasts...
Does Teardown Tuesday Have Some Competition ? - Page 1
Forum section: electronics / general

author: jeroen74
author_rank: Frequent Contributor
timestamp: November 06, 2012, 09:11:43 pm
content: Why didn't he show us the secret code?We still don't know what failed on the board. I wouldn't be surprised it's something simple.And this video is definitely not comparable to Dave's (or Mike's) teardowns

author: Monkeh
author_rank: Super Contributor
timestamp: November 07, 2012, 01:17:42 am
content: Competition? From the sledgehammer lunatic? Right.

author: Psi
author_rank: Super Contributor
timestamp: November 07, 2012, 01:22:18 am
content: Quote from: jeroen74 on November 06, 2012, 09:11:43 pmBecause it's a secret code
EE Jobs in Australia or elsewhere - Page 1
Forum section: electronics / general

author: pmichael
author_rank: Newbie
timestamp: October 31, 2012, 03:07:14 am
content: Hi Dave, or whomever sees this. I am a 29yr old EE in California and just got laid off from a robotics company that wasn't doing very well financially.A friend of mine, also from California, has been living and working in Australia for the past year and is absolutely loving it!He's been trying to get me to go out there, he raves about jobs being plentiful and well paid, and that I have to jump on it since the visa expires when one turns 30.He's in a different industry though, and all the links with EE jobs he's sending me are for construction and industrial stuff.My experience, 7 years of it, is with low-level embedded systems and processors, motor drivers, power supplies, sensors, op-amps etc. I'm an Altium expert, not Autocad.So, that being said, is my friend right? Are there EE jobs in Australia in the areas I'm interested/experienced in? What about other countries that are easy to get work in/move to? I wouldn't mind living abroad for a bit.Thanks and Cheers!-Pierre

author: EEVblog
author_rank: Unknown
timestamp: October 31, 2012, 04:19:07 am
content: Quote from: pmichael on October 31, 2012, 03:07:14 amOf course he does!We have the most livable cities in the world:http://en.wikipedia.org/wiki/World's_most_livable_cities#The_EIU.27s_Global_Liveability_ReportQuoteYes, there are always jobs in our field. Not nearly as many as the US, by several order of magnitude (seriously!), but we have them if you want them.http://www.seek.com.au/JobSearch?DateRange=31&SearchFrom=quick&Keywords=electronics&nation=3000http://mycareer.com.au/search/?s=777&sq=electronicsWill give you an idea, but many job don't end up advertised on there, they go beforehand to either someone in the know, or someone on the books on the recruitment consultants.You usually have to have a working VISA before anyone will even consider you.If you have niche skills, then it's not unheard of for a company to fly you over here for an interview and pay for your relocation etc.Dave.

author: pmichael
author_rank: Newbie
timestamp: November 06, 2012, 07:58:19 pm
content: Thanks Dave. This is helpful.
Rigol DS1052 AC voltage accuracy  - Page 1
Forum section: electronics / general

author: Oscar
author_rank: Newbie
timestamp: October 31, 2012, 08:09:32 am
content: Hello,What is the Rigol DS1052 accuracy of the VRMS measurement of an AC wave? Its specifications only cover the DC measurement accuracy.

author: tom66
author_rank: Super Contributor
timestamp: October 31, 2012, 09:46:07 am
content: I would think it would vary with the particular waveform.

author: Psi
author_rank: Super Contributor
timestamp: October 31, 2012, 09:53:29 am
content: dunno about Vrms but I've noticed the measurement resolution in general isn't very good.Vertical resolution is from 8bit ADC so if your scope is on 5V per div and the signal is only 5V high (1div) that's 255/8 = 0->31 range per div 5V/32 = 156mV stepsWhere as if the 5v signal is using all 8 divs its 5v/256 = 20mV stepsIf they're using screen data instead of raw ADC its a bit worse, as there are only 234 lines on the screenThis thread talks about the 8bit issue with scopeshttps://www.eevblog.com/forum/general-chat/rigol-ds1052e-inaccurate-voltage-readings/

author: Oscar
author_rank: Newbie
timestamp: November 06, 2012, 06:02:39 pm
content: Thankyou for the replies

author: Unknown
author_rank: Unknown
timestamp: November 06, 2012, 07:36:05 pm
content: AC voltage accuracy will depend on the frequency. You can find some frequency response plots for oscilloscopes, this should give you an idea of the error. For most low-end scopes, the error at the rated bandwidth should be about 30%. So for a 100 MHz scope, the amplitude of a 100 MHz sine will be 30% low. Best case (possibly low frequencies) may be equal to the DC spec, worst case will be 30% off. That's why there's no single AC voltage spec in the manual.Any quantization error will be in addition to the error induced by frequency response.
Looking for a schematic - Page 1
Forum section: electronics / general

author: HooRide
author_rank: Regular Contributor
timestamp: November 06, 2012, 05:25:41 pm
content: Hello all, I'm looking for a service manual for a Boston Acoustics GT-22 car amplifier. The site Dave got the service manual for the Yamaha receiver doesn't have any Boston gear. Anyone out there have any good resources?
eevblogs music... - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: March 02, 2010, 03:47:28 am
content: jajaja...the Codeorgan reads the content of any webpage and translates the content into music..."http://www.eevblog.com"sounds like this...http://www.codeorgan.com/?url=www.eevblog.com/

author: EEVblog
author_rank: Unknown
timestamp: March 02, 2010, 08:11:06 am
content: Awesome, I like it!I could use this as my new intro music!Dave.

author: Unknown
author_rank: Unknown
timestamp: November 03, 2012, 02:26:12 pm
content: thanks dave...

author: Monkeh
author_rank: Super Contributor
timestamp: November 03, 2012, 03:42:58 pm
content: Quote from: walterdelbono on November 03, 2012, 02:26:12 pmSlightly late reply.

author: baljemmett
author_rank: Unknown
timestamp: November 03, 2012, 03:49:20 pm
content: Holy thread necromancy, Batman!

author: LEECH666
author_rank: Frequent Contributor
timestamp: November 03, 2012, 04:06:43 pm
content: Link is dead ...

author: ablacon64
author_rank: Frequent Contributor
timestamp: November 03, 2012, 04:36:33 pm
content: We are 2 and a half years late... sigh....

author: SeanB
author_rank: Super Contributor
timestamp: November 03, 2012, 04:53:00 pm
content: It is dead, gone to meet it's maker - it is a Dead Link. The only reason it is still around is because it is nailed to the perch by the feet, in a blog posting here.It is an Ex Link!

author: LEECH666
author_rank: Frequent Contributor
timestamp: November 06, 2012, 12:52:50 am
content: He's dead, Jim.

author: Unknown
author_rank: Unknown
timestamp: November 06, 2012, 12:03:35 pm
content: ah Great! I was suckered too and clicked the dead link! - I feel such a fool! ;-)
We don't need no stinking manuals - Page 1
Forum section: electronics / general

author: JonnyBoats
author_rank: Regular Contributor
timestamp: November 05, 2012, 05:35:22 am
content: Amazing story of what happened when children in Africa were given computers without any instructions:http://dvice.com/archives/2012/10/ethiopian-kids.php

author: TriodeTiger
author_rank: Regular Contributor
timestamp: November 05, 2012, 06:22:27 am
content: I thought this was very interesting. Its amazing what you can do when you thought you couldn't when you're immersed in an unknown world...

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 05, 2012, 09:51:01 am
content: i was considering to buy the touch screen stuff for my kids. learning from past experience i opted to not to, otherwise i'll see pieces right after the purchase.

author: firewalker
author_rank: Super Contributor
timestamp: November 05, 2012, 10:04:55 am
content: Is this true or a hoax?Alexander.

author: M. András
author_rank: Super Contributor
timestamp: November 05, 2012, 08:56:54 pm
content: she discovered the programming of the application wtf? and wrote new parts for it. if its true take that child to a proper school and give a damn job at 1 of the big software developers

author: FenderBender
author_rank: Super Contributor
timestamp: November 05, 2012, 10:34:02 pm
content: Very impressive it is true. I find it very hard to believe. It's not that I don't think Ethiopian kids are smart...but rather, if this is the first time you've been exposed to electronics/computers of any sort...a mere 5 months to hack into the OS to unlock hardware features? Crazy talk. I don't think I can even do that and I've had almost 20 years of exposure to computers.Again, awesome if it is true, but it seems a bit hard to believe. I do believe the kids could figure out how to use the tablets relatively quickly. They are pretty intuitive, but hacking into them? Wow.

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 06, 2012, 04:58:08 am
content: i think it can be true. but the first thing you should teach them is.... internet.

author: poptones
author_rank: Frequent Contributor
timestamp: November 06, 2012, 05:45:34 am
content: What's so hard to believe once they've learned to read? Once they can read and spell google is the great equalizer.

author: firewalker
author_rank: Super Contributor
timestamp: November 06, 2012, 06:50:14 am
content: As someone else noted "How long took them to send the first spam/scam email"?Alexander.
Garmin GPS 12 Insane Prices!? - Page 1
Forum section: electronics / general

author: bullet308
author_rank: Frequent Contributor
timestamp: November 05, 2012, 12:37:39 am
content: Hi:Was looking at selling an old Garmin GPS 12 receiver and when I looked on eBay, was SHOCKED to discover that these ten+ year old technology is going for more money than a lot of lower end units, well over $100 each. I know it was state of the art in its day, but that day was over a decade ago. What is up with the popularity of these old and by most measures obsolescent GPS units?TIA

author: EEVblog
author_rank: Unknown
timestamp: November 05, 2012, 01:52:18 am
content: Maybe they have fond memories of it and trust it, and maybe that whole "the fish was this big" / "the GPS12 was so accurate..." thing.They could also have existing mounts for it on their boat or whatever?Garin still sell the eTrex "yella" a decade+ later to a similar nostalgic market.Dave.

author: TorqueRanger
author_rank: Frequent Contributor
timestamp: November 05, 2012, 02:13:46 am
content: Found thishttp://www.ebay.com/itm/Garmin-GPS-12-Handheld-s-GPS-Receiver-/321011505639?pt=GPS_Devices&hash=item4abdc6d9e7

author: bullet308
author_rank: Frequent Contributor
timestamp: November 05, 2012, 03:51:22 am
content: I have heard of nostalgia for many things...but a GPS?.

author: Unknown
author_rank: Unknown
timestamp: November 05, 2012, 03:45:18 pm
content: A good few years ago I sailed a boat back from the Mediterranean to England and used one very similar; they are pretty solid things! Once you use it to sail around rocky headland at night you start to become attached to it and it becomes your best friend! But even then old gear like this eats batteries and have slower acquisition times compared to modern units.
Fluke 23 specs - Page 1
Forum section: electronics / general

author: ttp
author_rank: Regular Contributor
timestamp: November 05, 2012, 12:19:12 am
content: I got an old Fluke 23 (first series I think, doesn't say Series II or anything else) that I've found about 15 years ago in the hole filled with grease, oil, metal sraps and general dust. Initial cleanup took a bit of effort but it still works fine. After all this years I realized I don't even know what accuracy it has, tried to google some data or user manual but the oldest I can find is series II. Has anyone seen anything on the net about this model or maybe remembers basic specs?

author: ModemHead
author_rank: Frequent Contributor
timestamp: November 05, 2012, 12:51:02 am
content: As far as I know the 23 is identical to the 77, except that it has a yellow case. This goes for the series II as well.Operators manual:http://assets.fluke.com/manuals/23______omeng0000.pdf

author: ttp
author_rank: Regular Contributor
timestamp: November 05, 2012, 07:47:44 am
content: Thanks ModemHead! You seem to have a good hand at finding Fluke manuals.
Most Bullshit - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 04, 2012, 09:58:18 am
content: very nice article on how this spook hunting show was exposed for the fraudsters they arehttp://badpsychics.blogspot.co.uk/2012/09/the-most-haunted-mole-finally-revealed.html

author: M0BSW
author_rank: Frequent Contributor
timestamp: November 04, 2012, 10:35:49 am
content: Quote from: mikeselectricstuff on November 04, 2012, 10:33:26 amThat sound like a madras in after action

author: M0BSW
author_rank: Frequent Contributor
timestamp: November 04, 2012, 10:38:37 am
content: Quote from: Sionyn on November 04, 2012, 09:58:18 amSo Mary like Dick , so does , Evette by the look on her face
What Scope Is This ? - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 04, 2012, 07:10:17 pm
content: I am not sure if this even a scopefrom this

author: free_electron
author_rank: Super Contributor
timestamp: November 04, 2012, 08:59:13 pm
content: the one at 2;40 and 3:24 is a Gould. the rest dunno..What is this band ? GWAR ? God what a racket. had to turn the sound off..

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 04, 2012, 09:57:30 pm
content: dragonforce its neoclassic in a style of guitar called shred which is the same stuff i play not every ones taste.its very technical type of music though some of notes are just added undeedsily if you watch him carefully he doesn't play all the notes this particular piece has 14 thousand notes for just one lead guitar.

author: MartinX
author_rank: Regular Contributor
timestamp: November 04, 2012, 10:42:30 pm
content: First we have a Wandel & Goltermann pegelmesser a selective AC voltmeter used for measuring analog mutiplexed communication lines then the Gould oscilloscope and the the mysterious instrument that may not be an oscilloscope, could be an elderly network or spectrum analyzer, I think I see a frequency scale. It seems to be able to be mounted in a panel so it could also be a radar or sonar display of some sort.
Electronic Water Conditioner  - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 02, 2012, 09:53:38 am
content: wrap it around your pipe to reduce scale apparently.....

author: Mediarocker
author_rank: Contributor
timestamp: November 02, 2012, 07:32:31 pm
content: What a crock. Where does the limescale go? Build up in the pipe? That's ridiculous.

author: LaurenceW
author_rank: Frequent Contributor
timestamp: November 02, 2012, 11:42:38 pm
content: Well, here is a rather lengthy web page debunking all the "quack chemistry" in a pretty thorough scientific way.http://www.chem1.com/CQ/magscams.htmlThe simple test for all of these devices is "show me the corroborated scientific evidence." They cannot - it isn't there.Bottom line is - it only works (in your head) if you think it does.Look, I've got fairies at the bottom of my garden, but I don't BANG ON about it.

author: gxti
author_rank: Frequent Contributor
timestamp: November 02, 2012, 11:49:58 pm
content: Should post stuff like this in the "snake oil" thread.

author: notsob
author_rank: Frequent Contributor
timestamp: November 03, 2012, 12:08:40 am
content: I only have this as second hand info, but permanent torroidal magnets around the polypipe on the input to water systems have been used in some mines in Australia for decades, where there is quite hard water, anecdotal reports suggest that they have saved considerable money on not having to replace components (such as taps, valves, etc) as often due to considerable reduction of the build up of minerals on the surfaces.
LPC1114, 600 mil to 300 mil... - Page 1
Forum section: electronics / general

author: firewalker
author_rank: Super Contributor
timestamp: November 02, 2012, 01:19:37 pm
content: Nice mod!http://blogs.yahoo.co.jp/yukukawano9/9722351.htmlAlexander.

author: amyk
author_rank: Super Contributor
timestamp: November 02, 2012, 01:51:58 pm
content: Shows how small the die actually is.

author: shebu18
author_rank: Frequent Contributor
timestamp: November 02, 2012, 03:26:45 pm
content: Then why didn't they made it directly 300mil instead of 600mil?

author: tom66
author_rank: Super Contributor
timestamp: November 02, 2012, 03:46:24 pm
content: Cost, possibly. Compatibility with other ICs, maybe.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: November 02, 2012, 04:37:45 pm
content: Quote from: shebu18 on November 02, 2012, 03:26:45 pmProbably to allow more routing space on the single layer PCBs typically used in the sort of consumer apps they're targetting, which are often not size constrained due to front panel layouts etc., but routing constrained to keep it on one layer.
UB-B Function Generator - Page 1
Forum section: electronics / general

author: M0BSW
author_rank: Frequent Contributor
timestamp: November 02, 2012, 10:54:50 am
content: Got in the post today from hong kong this little beast , very please with it , good wave form stable and works great my scope is a 10mhz Telequipment, the function generator is set to 10 Mhz, the frequency counter is at 10 Mhz ,shows in picture .00002/ .000.3, it eventually settled at .00000, but more likely to be the old frequency counter catching up, don't know if Dave has torn one of these down, but it works for me off to have a play.

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 02, 2012, 11:01:10 am
content: https://www.eevblog.com/forum/product-reviews-photos-and-discussion/review-of-dirt-cheap-chinese-'ud-b-dds'-freq-gen-off-from-ebay/its ud-b not ub-b

author: M0BSW
author_rank: Frequent Contributor
timestamp: November 02, 2012, 11:05:16 am
content: Quote from: Mechatrommer on November 02, 2012, 11:01:10 amtryed it a 2 Mhz and there is a slight ripple, at 1 Mhz it's ok, not as the same standard as my old UK Black*Star 2000, but it's OK for what I paid, about £23.00 UK

author: M0BSW
author_rank: Frequent Contributor
timestamp: November 02, 2012, 11:34:08 am
content: Yes it is UD-B sorry