hybridfree/eevblog-posts huggingface dataset:
software simulations - Page 1
Forum section: electronics / general

author: Specmaster
author_rank: Super Contributor
timestamp: September 28, 2017, 05:40:33 pm
content: Has anyone any experience of electronics simulation software that will allow a circuit to be built on screen and then simulate it running to test the theory and fine tune it before committing to purchasing parts and breadboarding it etc? The link here describes the type of software I'm talking abouthttp://www.new-wave-concepts.com/products.htmlIf so what is your opinion of such software and what would your recommendation or an alternative software package.At this stage I'm not particularly fussed about PCB construction, more of a possible replicate a circuit that is malfunctioning and then animate it and use the virtual to analyse the circuit at various points and assist in pinpointing the faults location etc?

author: rstofer
author_rank: Super Contributor
timestamp: September 28, 2017, 06:01:33 pm
content: One of the most popular simulation packages is LTspice - it's free and pretty much the standard around town.There is a very good group on Yahoo Groups with some folks who really know how it works.Not every possible device is modeled so there could be cases where it is useless. Or you have to build a model by scrounging information from a number of sources - including the Yahoo group.It doesn't do anything with respect to PCB layout.

author: ataradov
author_rank: Super Contributor
timestamp: September 28, 2017, 06:09:35 pm
content: LTSpice, but it is not a plug and play kind of thing. You need to understand that it is a numerical solver for a system of differential equations, so it comes with limitations.I guess all of the simulators will be based on the same principles, but commercial ones typically make a lot of effort to hide things, while LTSpice embraces them.

author: Neilm
author_rank: Super Contributor
timestamp: September 28, 2017, 06:33:37 pm
content: I have used Tina-TI for simulation that was somewhat more user friendly. However, I found it was so user friendly I couldn't do some of the advanced things I wanted to - so I also use LTSpice.Just remember, any simulation is only as good as the data you put in. If you make your model very relaistic, you will get a better result.

author: rstofer
author_rank: Super Contributor
timestamp: September 28, 2017, 10:21:41 pm
content: For everything else, there is Matlab.
Notice of PCBs shipping - Page 1
Forum section: electronics / general

author: GreggD
author_rank: Regular Contributor
timestamp: September 28, 2017, 07:30:19 pm
content: I ordered boards, 7 designs, 10 each, different thickness from ELECROW BAZAARI got a email from ELECROW saying they shipped with a tracking# a day or two before DHL-HK got them.They arrived 6 days ago and look great, took 9 days from order to delivery.Today 6 days after delivery I received a notification email that they had shipped from a credit card processor, fhtpay.hk with the DHL tracking#$65.01 US, I'm happy
Opossums just fine, oscilloscopes on decline - Page 1
Forum section: electronics / general

author: MrW0lf
author_rank: Frequent Contributor
timestamp: September 27, 2017, 06:48:57 pm
content: Im worriedhttps://trends.google.com/trends/explore?date=all&q=oscilloscope,soldering,opossumLevel of interest in oscilloscopes has leveled with interest in opossums...

author: buck converter
author_rank: Regular Contributor
timestamp: September 27, 2017, 09:00:35 pm
content: Like it or not, Arduino Trumps all. Times a changin!https://trends.google.com/trends/explore?date=all&q=oscilloscope,soldering,opossum,Arduino,Raspberry%20pi

author: MrW0lf
author_rank: Frequent Contributor
timestamp: September 27, 2017, 09:15:59 pm
content: Dev boards combined more popular than "drinking" (also on the rise btw)!https://trends.google.com/trends/explore?date=all&q=soldering,Arduino,Raspberry%20pi,drinkingBut "sex"trumpseverything with no remorse:https://trends.google.com/trends/explore?date=all&q=soldering,Arduino,Raspberry%20pi,drinking,sex

author: buck converter
author_rank: Regular Contributor
timestamp: September 28, 2017, 01:58:19 am
content: On the general maker level, making something with electronics now requires a lot less knowledge of electrical engineering.
It's waste the day away playing games on Google - Page 1
Forum section: electronics / general

author: Jwalling
author_rank: Unknown
timestamp: September 27, 2017, 10:55:09 am
content: A large number of games and other stuff to do today on Google. The boss will never know...

author: GreyWoolfe
author_rank: Unknown
timestamp: September 27, 2017, 06:02:48 pm
content: Wasting away in EEVBlog-ville among other and sundry web locations. The joys of working from home with my office mates--my dogs. My boss knows how to find me if needed.

author: CJay
author_rank: Super Contributor
timestamp: September 27, 2017, 07:03:09 pm
content: Build servers are down, can't do anything at work so youtube and eevblog have been hammered today.

author: bd139
author_rank: Super Contributor
timestamp: September 27, 2017, 07:21:51 pm
content: Lucky. I spent half the day fixing our build servers. Someone munted our semantic versioning code which caused a chain reaction of package upgrades and rebuilds. The other half was talking about ISO 27001 which I spend most of my time muted drilling holes in things.Now my daughter had hosed her laptop so all evening fixing that
Replaced soldering iron heater, now station going nuts - Page 1
Forum section: electronics / general

author: Fallingwater
author_rank: Contributor
timestamp: September 25, 2017, 07:09:06 pm
content: I have a cheapo "Lukey" 936A station (the station itself,the iron). It's always been marginal - I have to set it to 480 for it to behave like my *good* station when I set that one to 300. Said good station recently died. I have a TS100 on order to replace it, but while it gets here I wanted to fix the cheap backup. As luck would have it I bought a pair of replacement heaters (allegedly Hakko A1321) when I got the station, so I disassembled everything and hit the first problem - the stock heater has two transparent wires plus a blue and a red one, while the replacement has two blue (sensor) and two red (heater).I figured the transparent wires were the heater, but to be sure I plugged it in and measured VAC while it was running; sure enough, the transparent wires' pads read somewhere around 20VAC. There was apparently no VAC across the other two pins.There was another problem: the manual of the A1321 said I should be reading 2.5-3.5 ohm across the heater wires and 43-58 across the sensor wires. This was consistent with my readings for the replacement heater. The stock heater, however, has a reading of 18 ohm across the transparent (heater?) wires and 1.5 ohm across the blue/red (sensor?) wires.I was a bit puzzled and thought maybe the wrong readings were due to the stock heater being bad, so I swapped in one of the spares soldering the red wires where the old transparent ones used to be and the blue sensor wires to where the blue/red wires were.Now if I turn on the station the heater LED only stays lit for a short while before switching off and only blinks every now and then. The heater itself gets to scalding temperatures *blisteringly* fast - like, a couple seconds; I haven't yet enclosed it all and tried soldering with it, because I'm worried I'm going to kill the heater. It appears to be *strongly* overdriven.I assume the heater/sensor connections are right because there's no way the sensor itself would be able to heat up the ceramic if connected to the wrong pads (I imagine it'd just blow up), but then what about the ohm readings and the extreme amount of heat I'm seeing?I've no idea where I'm going wrong. Little help?

author: wraper
author_rank: Unknown
timestamp: September 25, 2017, 07:14:29 pm
content: You replaced heater with termocouple temperature sensor with heater which have thermistor sensor.

author: sleemanj
author_rank: Super Contributor
timestamp: September 25, 2017, 09:08:34 pm
content: Chinese A1321, A1322 are different, ostensibky even to Hakko A1321. Search forums for those model numbers it's been discussed in detail previously.

author: Fallingwater
author_rank: Contributor
timestamp: September 25, 2017, 11:05:54 pm
content: I had no idea, thought they were all the same. Thanks. Back to the stock heater we go, at least with that I could solder *some* things. Can't wait to get the TS100, sigh.
Did you know "caryKH" created the "scaleofuniverse.com"? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: September 25, 2017, 05:44:48 pm
content: I knew this kid was smart and talented but today I was looking at the copy write and saw htwins.net. I did not know this. I wonder how much money he makes off that site. For me its one of the coolest things I have seen on the internet and really the only realistic way I know of to get your brain to recognize the size of things. I always thought he was just some geeky youtuber. I guess he still is.https://www.youtube.com/channel/UC9z7EZAbkphEMg0SP7rw44Ahttp://scaleofuniverse.com/
Nintendo Medical - Page 1
Forum section: electronics / general

author: tooki
author_rank: Super Contributor
timestamp: September 24, 2017, 12:26:31 pm
content: I guess these days we can just buy an atmega and a decent little TFT!https://twitter.com/JanHenrikH/status/910754596422868992http://www.distractify.com/trending/2017/09/21/lSlMc/med-device-gameboy

author: MarkS
author_rank: Unknown
timestamp: September 25, 2017, 02:04:43 pm
content: Can you post a synopsis for those of us not on Twitter?

author: tooki
author_rank: Super Contributor
timestamp: September 26, 2017, 07:04:02 am
content: Oh. It’s got nothing to do with being a twitter member or not. The guy seems to have changed that post to private after I linked to it (and lots of media embedded it and referenced it) — I just wanted to link to the source and not a clickbait website, but oh well.Here’s an article:http://www.distractify.com/trending/2017/09/21/lSlMc/med-device-gameboy

author: MarkS
author_rank: Unknown
timestamp: September 26, 2017, 07:32:23 am
content: That's actually kind of brilliant, if you think about it. Why not a portable game system? It's an off the shelf system that is tested and works with minimal development time needed.https://webpages.uncc.edu/~jmconrad/ECGR6185-2013-01/Presentations/Chitale_Paper_Presentation.pdf

author: Red Squirrel
author_rank: Super Contributor
timestamp: September 27, 2017, 09:58:47 pm
content: Lol that's great!Wonder if they just ran across a supply of game boy screens and realized it would make sense to use them. This would not really affect the reliability of the actual medical device either if done right.Funny thing is, if one of us tried to sell something like this as a piece of medical equipment we'd be laughed at and they would never certify such a thing but if you're a big enough company you can mostly do what you want.

author: tooki
author_rank: Super Contributor
timestamp: September 29, 2017, 12:04:42 pm
content: It sounds as though many devices used not only the display, but actually the unit itself, including the cpu.
Ignored topics. Does anyone use it?  - Page 1
Forum section: electronics / general

author: wilfred
author_rank: Super Contributor
timestamp: September 24, 2017, 01:17:34 pm
content: /.

author: ez24
author_rank: Super Contributor
timestamp: September 24, 2017, 09:22:36 pm
content: Where do you find this info?

author: AlfBaz
author_rank: Super Contributor
timestamp: September 25, 2017, 01:16:49 am
content: Quote from: wilfred on September 25, 2017, 01:01:19 amThis is a screen shot of my view unread posts since last visit page. It appears you can ignore topics you haven' participated in

author: tautech
author_rank: Super Contributor
timestamp: September 25, 2017, 02:07:55 am
content: Quote from: ez24 on September 24, 2017, 09:22:36 pmhttps://www.eevblog.com/forum/chat/forum-update-new-ignore-topics-feature/msg651768/#msg651768

author: Jeroen3
author_rank: Super Contributor
timestamp: September 25, 2017, 06:01:33 am
content: I'm trying to not participate in obvioustopics where this feature is needed for.But sometimes... I have 10 of those now.

author: RoGeorge
author_rank: Super Contributor
timestamp: September 25, 2017, 06:35:43 am
content: Maybe all that is needed is moreAFK timeAFE time.
Thunderbird, did you know it can track RSS feeds? - Page 1
Forum section: electronics / general

author: wilfred
author_rank: Super Contributor
timestamp: September 15, 2017, 01:35:16 am
content: /.

author: cdev
author_rank: Super Contributor
timestamp: September 15, 2017, 01:36:48 am
content: Yes, and sometimes it starts doing it without being told to, it seems, which is creepy.

author: ataradov
author_rank: Super Contributor
timestamp: September 15, 2017, 01:57:32 am
content: I use TT-RSS for that. If something does not have RSS feed, I don't care about that something.

author: cdev
author_rank: Super Contributor
timestamp: September 16, 2017, 12:50:18 am
content: I would have to dig a bit but I can tell you that Thunderbird adds sites to its RSS feeds without my telling it to do so. Because it wasnt intentional I can only speculate what might have caused it. I only noticed it because I use wireshark sometimes for debugging network issues.

author: Raj
author_rank: Frequent Contributor
timestamp: September 25, 2017, 06:38:45 pm
content: I wish I knew this before giving up on an raspberry pi rss tracker project.maybe ill retry it
Looking for stranded cable, 1 pair, twisted, AWG24, 100M roll, ~US$100 - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: September 24, 2017, 10:32:43 am
content: I'm looking to buy some cable~100meter / 328ft roll.- AWG22-26- Twisted- Stranded cable (not solid core)- No shield required- 1 pair- International shipping optionSomething in the US$100 range.Having trouble finding anything suitable.If you want single conductor 100M roll it's like $20-30.And if you want 100m of 12core cable it's like $150-200but something as simple as 1pair twisted is quite hard to find under $200Any ideas?

author: DTJ
author_rank: Super Contributor
timestamp: September 24, 2017, 10:40:43 am
content: http://au.rs-online.com/web/p/twisted-multipair-industrial-cable/8124741/

author: BrianHG
author_rank: Super Contributor
timestamp: September 24, 2017, 12:04:38 pm
content: Here you go: Approximately 100$us for 6.1KM of wire.https://www.alibaba.com/product-detail/2CORES-blue-red-twist-pair-yarn_60460090306.html?spm=a2700.7724838.2017115.31.68e21f2cL00gQGAround 50$ for 0.5KM: (With outer jacket)https://www.alibaba.com/product-detail/High-quality-ul2464-24awg-2-pair_60638245444.html?spm=a2700.7724838.2017115.194.68e21f2cL00gQGIf you want to pay more per meter, you can order 100m at a time from here:https://www.alibaba.com/product-detail/E2479743-AWM-1015-1007-1569-stranded_60711611262.html?spm=a2700.7724838.2017115.114.68e21f2cL00gQG

author: rdl
author_rank: Super Contributor
timestamp: September 24, 2017, 12:09:24 pm
content: Here in the US, Mouser has Belden 8442MN in stock for under $30http://www.mouser.com/Wire-Cable/Multi-Conductor-Paired-Cables/_/N-9lx96Z1yzvvqx?P=1yotsiyZ1z0t1roZ1yxufheZ1yyf3fuZ1z0vt0dZ1z0vt0uZ1z0vsqlZ1z0vsp0Z1z0juks

author: BrianHG
author_rank: Super Contributor
timestamp: September 24, 2017, 12:23:56 pm
content: Quote from: rdl on September 24, 2017, 12:09:24 pm*** Warning, that's 100 feet, not 100 meters.

author: BrianHG
author_rank: Super Contributor
timestamp: September 24, 2017, 12:46:08 pm
content: Try getting a quote from these guys, they sell 200M at a time:https://www.alibaba.com/product-detail/ul-2464-AWM-22awg-2-core_60663635208.html?spm=a2700.7724838.2017115.29.4947469bwA4wpIThese guys will sell you 100m at a good price, but, it's shielded... (You can always ask them about unshielded versions...)https://www.alibaba.com/product-detail/Copper-spiral-shielding-wire-2-3_60575557227.html?spm=a2700.7724838.2017115.68.4947469bwA4wpI

author: Psi
author_rank: Super Contributor
timestamp: September 24, 2017, 09:05:44 pm
content: Thanks guys, i will review all of these after work!
Where did I see ... Oscilloscope probe video - Page 1
Forum section: electronics / general

author: BenKenobi
author_rank: Regular Contributor
timestamp: September 24, 2017, 12:48:30 pm
content: I recall watching a really good video that basically compared oscilloscope probes of varying frequency on a 100 MHz (I think) scope, it showed the impacts of putting 200 probes on a 100MHz box and so on - I think it was Dave that did this but I could be wrongI've searched high and low so this may be content in a vid with a title that doesn't reference this testing - don't know - old timers I guessCan anyone point me in the right direction please - not this wasn't a forum review or a text doc - I've a few of those filed away, this was a real time vid.It's OK I found it ...
Photoelectric cathode for low power vacuum tube? - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: September 24, 2017, 12:29:35 pm
content: Hi guys,I've been thinking - the point of the filament heater is to enable the release electrons from the cathode. Would it be possible to use a cathode that uses photoelectric release of electrons? Basically instead of heating a bit of metal to hundreds of deg.C, you could shine an LED (or other light source) on to a coated cathode and use such a tube for the same purposes you'd use a thermionic one, if obviously at much lower powers.It would draw much less power, start up instantly, have a longer life span. The downsides are obvious - much less power.Basically I've been thinking about how to make a very low power x ray source that could be used inside of a detector, and this came up as an idea - no filament, just the accelerating voltage, which would draw pretty much no current.I know there are phototubes, PMTs, etc. but they are used to actually measure light and not use the photoelectric electrons to do signal amplification and other tube functions.So, could such a tube work?Thanks ,David

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 24, 2017, 06:07:49 pm
content: It's not a bad idea for the x-ray tube. But, keep ions well away from the cathode.That, and the piss poor current density, are the limiting factors in general use. I suspect you wouldn't get better efficiency than a coated filament (battery powered, 1xxx series) type, except in broad daylight perhaps.I suppose you'd make the grid(s) as normal, and the plate as a mesh? Still not going to be much light reaching the cathode...Tim

author: NiHaoMike
author_rank: Super Contributor
timestamp: September 24, 2017, 06:26:00 pm
content: Field emission would probably be a better choice.https://en.wikipedia.org/wiki/Field_electron_emission#Large-area_field_emission_sources:_vacuum_nanoelectronics

author: daqq
author_rank: Super Contributor
timestamp: September 24, 2017, 06:51:54 pm
content: Huh, did not know about the field emission technique! Looks very nice!Note: I'm not actually building this, I'm just thinking about stuff at random.

author: Kleinstein
author_rank: Super Contributor
timestamp: September 24, 2017, 07:10:32 pm
content: X-ray tubes usually use quite some power - more like kW instead of mW. So who case about some 100 mW for a filament. A powerful LED / laser also needs some power. For efficient xray generation one usually need's rather high voltage.

author: Gyro
author_rank: Super Contributor
timestamp: September 24, 2017, 07:17:33 pm
content: Minature Cold cathode X-Ray tubes were used in the Soviet era...http://www.ebay.co.uk/itm/Miniature-X-Ray-tube-for-x-ray-photography-and-research-Cold-cathode-Rare-/252679396257?hash=item3ad4dd9ba1:g:UwIAAOSwd4tTtb1j
Disassembly of a Block II Apollo Guidance Computer - Page 1
Forum section: electronics / general

author: dave_k
author_rank: Frequent Contributor
timestamp: September 20, 2017, 03:55:41 am
content: Ahhh .. glorious 240P!

author: vk2amv
author_rank: Unknown
timestamp: September 20, 2017, 10:16:07 am
content: Quote from: dave_k on September 20, 2017, 03:55:41 amPerfect to put up on my 65" TV in the lounge room hahaStill an interesting video.

author: SeanB
author_rank: Super Contributor
timestamp: September 23, 2017, 04:40:28 pm
content: You can fly to the moon on 240P......
How Facebook is Stealing Billions of Your Youtube Views, I did not know this... - Page 1
Forum section: electronics / general

author: BrianHG
author_rank: Super Contributor
timestamp: September 24, 2017, 03:58:01 am
content: The pricks...

author: Cubdriver
author_rank: Unknown
timestamp: September 24, 2017, 06:04:13 am
content: Yet another reason to stay away from the Book of Faces.-Pat
I need to gradute. Change majors from Computer Eng to Computer Infromations - Page 1
Forum section: electronics / general

author: mlugo2
author_rank: Contributor
timestamp: September 22, 2017, 04:05:47 pm
content: I'm currently a senior Computer Engineering student and I have 2 more semesters to graduate (including this current one). The thing is I'm running out of money fast. Thanks to an internship at IBM this past summer I am able to pay for this semester. Because the Computer Engineering Degree requires 2 semesters of Senior Design I'll have take an additional semester.The Computer Information System Technology degree only requires one senior project. (I've thought about a computer science degree but it would require for me to take classes that I don't have prereqs for) My question is, would this hurt me in getting a job? Would companies look down on this?Thank you

author: tooki
author_rank: Super Contributor
timestamp: September 23, 2017, 03:57:29 pm
content: Depends entirely on what kinds of jobs you want in the short term.In the long term, probably not much difference, as work experience begins to overshadow education.
Things you should know about fuses [Bigclivedotcom] - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: September 22, 2017, 09:15:43 am
content: Dave, sorry to steal some of your thunder, but unfortunately Clive Mitchell hasn't got a forum but he does have quite a few followers here (and I believe he is a follower of yours). I absolutely love Clive's videos; he has this real "back to basics" way of presenting but still doesn't hold back on technical details. I've really learnt a lot from him. His recent video on fuses is no exception, he really does do excellent work.

author: Ampera
author_rank: Super Contributor
timestamp: September 22, 2017, 04:08:35 pm
content: He's like a mix between Ashens, PhotonicInduction, and EEVBlog. Three channels I love, three channels that go really well together.

author: kalel
author_rank: Frequent Contributor
timestamp: September 22, 2017, 04:22:20 pm
content: A lot of nice content indeed. I especially liked the Joule Thief and other simple creative projects that beginners can follow.

author: Ampera
author_rank: Super Contributor
timestamp: September 22, 2017, 05:29:02 pm
content: Quote from: kalel on September 22, 2017, 04:22:20 pmThe cyberpussy?
Help with a label marking - Page 1
Forum section: electronics / general

author: Jolle
author_rank: Contributor
timestamp: September 22, 2017, 11:27:13 am
content: Some of the electrical products produced by the company I work for has the attached mark on the label (together with the CE mark and other stuff) but nobody seems to know where it originates from. Does anybody on this forum recognice the mark? or can somebody point me in the direction of more information?Thank you!

author: Gribo
author_rank: Frequent Contributor
timestamp: September 22, 2017, 11:42:28 am
content: Does the product use plastics? Is it supposed to be recycled? There are similar markings on plastic products, denoting the plastic type for the recycling facility.

author: Jolle
author_rank: Contributor
timestamp: September 22, 2017, 11:59:02 am
content: Thank you for your response! Yes the product is build in a plastic chassis, but if i google plastic marking I end up with labels that look like this:Which are not a direct match to the one I am looking for, but it could be and old version of the mark or?

author: Benta
author_rank: Super Contributor
timestamp: September 22, 2017, 02:31:33 pm
content: The company that designed/printed the labels?
Wireless instruments and in-ear rack! - Page 1
Forum section: electronics / general

author: alexanderbrevig
author_rank: Frequent Contributor
timestamp: September 21, 2017, 10:29:56 pm
content: So, it is finally time. This rack has been in planning for a while now, but I finally got the format that I wanted.One main rack that is essential, which has the mixer (also audio interface to get backing tracks and clicks to us) and the guitar/bass effects [not yet fully populated].One wireless rack for microphones, guitars and bass.One rack for wireless in-ear monitoring.Pictures attached.I'm still missing an antenna combiner, some isolated splitters and a few patch panels. And to add the two missing axe-fx units to the main rack.

author: iampoor
author_rank: Frequent Contributor
timestamp: September 22, 2017, 07:47:27 am
content: Very NiceAre you planning on doing an xlr split snake for the drums/vocals to go to your in-ear mixer?Also, I am guessing you play guitar in a metal band?

author: alexanderbrevig
author_rank: Frequent Contributor
timestamp: September 22, 2017, 09:14:07 am
content: Quote from: iampoor on September 22, 2017, 07:47:27 amThanks!Yes, there will be splits for guitars,bass and vocals. Galvanically isolated to avoid ground loops with front of house. Though he will get vocals post mixer so we can apply some fx from time to time. Guitars and bass will be split after the AXEs.Quote from: iampoor on September 22, 2017, 07:47:27 amIndeed I Do!Here's our first single and music video from our upcoming album
Off to Melbourne - Looking for Techno shopping  - Page 1
Forum section: electronics / general

author: NW27
author_rank: Regular Contributor
timestamp: September 21, 2017, 12:19:04 pm
content: Hi allI'm off to Melbourne (CBD) on Sunday for a few days and whilst the wife is doing her style of shopping, I thought I my might go technical shopping.As per most other users on this forum, I have the electronics interest so I'm quite familar with Jaycar and visit the Sydney Altronics store about once a year when in the area.I have a 3d printer that l like enhancing so these kind of stores are always good.Many years ago I recall there was a surplus store down there with lots of gems ie power supplies, connectors, big motors etc.Also open for book stores with good selection of computer books etc.So where should I go in Melbourne?Happy to catch the tram/bus to the suburbs if required.Neil.Sent from my SM-N920I using Tapatalk

author: Trisc
author_rank: Newbie
timestamp: September 21, 2017, 02:31:57 pm
content: Quote from: NW27 on September 21, 2017, 12:19:04 pmRockby electronics in Clayton had a small "clearance" section for a while. Lots of random electronic components, small runs, batch ends etc. not sure if it's still going, might be worth a call.They do however have their 'weekly specials' flyer sent out on Friday avo via email.- see their website (be warned, it's not too user friendly but gets the info across). Great bunch of guys. Family owned and run business. I always try to send my business their way when I need something.Sent from my iPhone using Tapatalk

author: NW27
author_rank: Regular Contributor
timestamp: September 22, 2017, 02:17:16 am
content: Thanks GuysJust the style of information l was looking for.Sent from my SM-N920I using Tapatalk

author: Muttley Snickers
author_rank: Unknown
timestamp: September 22, 2017, 03:10:29 am
content: Quote from: NW27 on September 21, 2017, 12:19:04 pmI'm not sure that there is much to discover anymore in and around the city in regards to electronics gear as most of the good stuff stores vanished years ago, anyway if you have some time to kill then Radio Parts in Spencer St might be worth a look in but you can pretty much do that on the internet now anyway, I remember the good old days when human interaction and a bit of a chat was all the go, sad times we live in nowadays.Radio Parts.http://www.radioparts.com.au/
How do you check an androids phone SSID that it broad casts? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: September 22, 2017, 12:46:05 am
content: I'm trying to white list people from my wireless router. I don't use an android phone so is their any way to look in the settings of the phone to find what name the wireless router sees?ie:android-524184c3ccf2c969Or how would you do this for a PC using IP config?

author: alpher
author_rank: Frequent Contributor
timestamp: September 22, 2017, 01:15:26 am
content: If you could clarifyin, what do you mean by "whitelisted".If it means that a only certains MACs should be alowed to connect to your AP then all you have to do is to get their respective MAC addresses and that will be it.

author: Halcyon
author_rank: Unknown
timestamp: September 22, 2017, 01:17:45 am
content: You mean the host name of the phone? Depending on the version of Android, it may differ but usuallySettings > About Phone > Phone NameKeep in mind white-listing based on host name or MAC address is almost entirely useless and doesn't make your wireless network any more secure. Both are so easy to sniff and spoof, like literally, it takes less than a minute on a Windows machine.On Windows, go to a Command prompt and enteripconfig /alland your machine's host name is right at the top.

author: Beamin
author_rank: Super Contributor
timestamp: September 22, 2017, 01:29:46 am
content: Quote from: Halcyon on September 22, 2017, 01:17:45 amThese people have no idea on how to use the internet beyond typing in the user name and password. So the password will work and I can tell them their computer is broken because they see that the password works.
Autonomous Robots Are The Future! - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: September 22, 2017, 02:37:53 am
content: Autonomous delivery robots are the future...Humans to the rescue!

author: Cerebus
author_rank: Super Contributor
timestamp: September 22, 2017, 02:40:34 am
content: Whoops! At least it wasn't an armed autonomous robot...

author: ataradov
author_rank: Super Contributor
timestamp: September 22, 2017, 03:27:45 am
content: This is a stupid idea, but I guess somebody has to waste investor's money.Plus they are a traffic hazard, as shown in this video.And insurance company will have a field day here

author: MrW0lf
author_rank: Frequent Contributor
timestamp: September 22, 2017, 12:00:20 pm
content: All it needs is human with a flag walking in front

author: Red Squirrel
author_rank: Super Contributor
timestamp: September 22, 2017, 11:38:50 pm
content: Haha oops! They should at least have a flag or something so they can be seen from a car.
Could you make a race car game from google earth? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: September 19, 2017, 05:12:59 am
content: Do you think that would be possible? That would be the most kick ass game where you could race to your house from any where else in the country.

author: BrianHG
author_rank: Super Contributor
timestamp: September 19, 2017, 06:58:12 am
content: Like this:https://www.livescience.com/46714-virtual-training-indoor-cycling.html

author: Beamin
author_rank: Super Contributor
timestamp: September 19, 2017, 08:42:28 pm
content: Quote from: BrianHG on September 19, 2017, 06:58:12 amFuck that website. I was assaulted with so many ads trying to close the huge box on the bottom I gave up and shut my browser. I could read about two sentences of the article. No I don't want to give out my email so I can get more spam or I mean stay up to date with great new targeted content. .
Did anyone make ION GUNs or DEATH RAY projects from 1980s books ? - Page 1
Forum section: electronics / general

author: lordvader88
author_rank: Frequent Contributor
timestamp: September 17, 2017, 09:57:37 am
content: When I was a kid I had electronics books that said I could make such things. I suppose now that I know a bit I, should dig them upI will be very very disappointed tho if I can't make star wars and star trek weapons at home on a limited budget

author: German_EE
author_rank: Super Contributor
timestamp: September 17, 2017, 01:04:56 pm
content: <sigh>Prepare to be disappointed. If you could do this at home on a limited budget then the US DoD would not be spending millions of USD on directed energy weapons. Unless of course you discover something that doesn't obey the laws of physics, but please don't go there.

author: Brumby
author_rank: Unknown
timestamp: September 18, 2017, 08:23:45 am
content: I don't recall projects of that nature - but you can bet your boots they would be purely decorative. If you want something serious - then that's a whole different ball game.You might enjoy this:

author: mathsquid
author_rank: Frequent Contributor
timestamp: September 18, 2017, 11:31:04 am
content: I remember seeing these books:Build Your Own Laser, Phaser and Ion Ray Gun (https://www.amazon.com/Build-Laser-Phaser-Working-Projects/dp/0830606041)Lasers, Ray Guns and Light Cannons (https://www.amazon.com/Lasers-Ray-Guns-Light-Cannons/dp/0070450358/ref=sr_1_9?s=books&ie=UTF8&qid=1505734101&sr=1-9&keywords=gordon+mccomb)But I never built any of the stuff. Gordon McComb's "The Robot Builder's Bonanza" was a big influence on a younger MathSquid, but I never built any of the stuff back then because of lack of funds, supplies, etc.

author: eugenenine
author_rank: Frequent Contributor
timestamp: September 18, 2017, 12:45:52 pm
content: I checked out both of those from the local library repeatedly. Never did finish any of the projects though, just wasn't in a kids budget.

author: Cyberdragon
author_rank: Super Contributor
timestamp: September 18, 2017, 05:18:46 pm
content: Somewhere on Youtube there is a guy that built a homemade open-air gas laser out of nothing but a homemade HV supply and some simple hardware. Of course it was weak and unfocused, but if you were to put some optics on it, it might have a small chance of burning something (I think it was a UV laser).Not sure how long it would run before burning up though.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: September 18, 2017, 05:29:31 pm
content: Quote from: Cyberdragon on September 18, 2017, 05:18:46 pmQuite a while: atmospheric nitrogen is in ready supply!Tim

author: LaserSteve
author_rank: Super Contributor
timestamp: September 19, 2017, 02:35:14 pm
content: Yes..Did the YAG, Image Converter Tube, and HENE...Steve
Safe to take apart GE LED light bulb? - Page 1
Forum section: electronics / general

author: buck converter
author_rank: Regular Contributor
timestamp: September 19, 2017, 02:43:24 am
content: One of my GE LED stooped working, will not bother with warranty. I read some where a while ago that the coolant inside is toxic. Can I open it without touching the coolant, or is it a gas? Finally, anyone opened them before? it looks like brute force may be needed.

author: tooki
author_rank: Super Contributor
timestamp: September 19, 2017, 02:59:08 am
content: Quote from: buck converter on September 19, 2017, 02:43:24 amCoolant? What coolant? LED lamps typically use aluminum heatsinks to cool the LED chips, if they cool them at all.Are you maybe confusing LED and compact fluorescent lamps? The latter use tubes that contain a small amount of mercury vapor, and indeed should not be broken if at all possible, especially indoors.
How secure are bitcoins on the Trezor? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: September 18, 2017, 11:27:22 pm
content: Does anyone have one of these? I admit I have one and I'm not sure how it really works. What happens if the servers it uses go down or out of business? Would the bitcoins be safe as long as I don't lose it? It would seem the only way it would be bad is if you can't generate a new one from the seed.
Various board materials for prototyping? - Page 1
Forum section: electronics / general

author: kalel
author_rank: Frequent Contributor
timestamp: September 18, 2017, 04:10:22 pm
content: I'm curious about various board materials that can be used for prototyping, and any advantages/disadvantages.For example of an unusual one, here's a potato chip being used:I'd like to know about more materials that can be used, either something you have used yourself or seen (other than just the standard PCB materials and wood boards). It doesn't have to be optimal materials, just something that is usable.

author: matseng
author_rank: Frequent Contributor
timestamp: September 18, 2017, 04:29:28 pm
content: Acrylics... -https://github.com/loansindi/ps1_noise

author: Vtile
author_rank: Super Contributor
timestamp: September 18, 2017, 04:50:57 pm
content: Just about anything. Old CDs or DVDs comes to my mind with manhattan style droplets. If you are artistic enough you don't need a board at all, just flying wire construction.

author: kalel
author_rank: Frequent Contributor
timestamp: September 18, 2017, 08:01:43 pm
content: Quote from: Vtile on September 18, 2017, 04:50:57 pmIf using CDs, how do you drill the holes for components?

author: Vtile
author_rank: Super Contributor
timestamp: September 18, 2017, 09:15:27 pm
content: Quote from: kalel on September 18, 2017, 08:01:43 pmNo drilling, but using superglue to attach soldering pads. Do a web search for "manhattan prototyping".This thread might be interesting for you.https://www.eevblog.com/forum/beginners/has-anyone-ever-seen-this-construction-teknique-before/

author: rdl
author_rank: Super Contributor
timestamp: September 18, 2017, 09:56:25 pm
content: There are a number of people that create various electronics based sculptures these days but I wouldn't be surprised if Jim Williams was the first.http://www.edn.com/Home/PrintView?contentItemId=4411017Quote from: Vtile on September 18, 2017, 04:50:57 pm
Fluke 117 / 287 - Page 1
Forum section: electronics / general

author: FlashedBIOS
author_rank: Contributor
timestamp: September 15, 2017, 06:25:59 pm
content: Will this combination of multimeters be enough for basic computer tech work and maybe basic electronic work?

author: retiredcaps
author_rank: Super Contributor
timestamp: September 16, 2017, 04:26:38 am
content: Yes, absolutely except the 117 does NOT have a uA/mA range like the 287. I suspect most of the time for basic computer tech work, you will be measuring voltage and resistance.edit: forgot the "NOT" part above.

author: Electro Detective
author_rank: Super Contributor
timestamp: September 16, 2017, 09:06:28 am
content: Get both and you're set for just about any multimeter scenario

author: tooki
author_rank: Super Contributor
timestamp: September 17, 2017, 04:30:24 pm
content: Quote from: Electro Detective on September 16, 2017, 09:06:28 amWhat does a 117 do that a 287 doesn't?!?

author: shteii01
author_rank: Frequent Contributor
timestamp: September 17, 2017, 08:31:27 pm
content: Quote from: tooki on September 17, 2017, 04:30:24 pmVoltAlert feature. Non-contact live wire detector.

author: stmdude
author_rank: Frequent Contributor
timestamp: September 17, 2017, 08:44:08 pm
content: Quote from: shteii01 on September 17, 2017, 08:31:27 pmYup. That one has saved me a few times when I've had to play electrician in a friends incorrectly wired house.

author: Electro Detective
author_rank: Super Contributor
timestamp: September 17, 2017, 10:56:49 pm
content: Quote from: shteii01 on September 17, 2017, 08:31:27 pmPlus: 2 meters are always a good idea to have handy, for many reasons, most important to verify a measurement in question,AND verify both meters are working correctlyConvenience to measure current with one meter, voltage or temperature with the other, or simultaneous input and output readings without moving probes or clips etcBut the party really gets rockin with THREE meters

author: Shock
author_rank: Super Contributor
timestamp: September 18, 2017, 01:22:29 am
content: Quote from: tooki on September 17, 2017, 04:30:24 pmLow impedance is handy.

author: shteii01
author_rank: Frequent Contributor
timestamp: September 18, 2017, 02:59:27 am
content: Quote from: Electro Detective on September 17, 2017, 10:56:49 pmInterestingly, 117 does not do temperature, but 287 does. 116 does temperature, but does not have VoltAlert.

author: Electro Detective
author_rank: Super Contributor
timestamp: September 18, 2017, 05:11:02 am
content: Perhaps that's Fluke's way to encourage sales of 287 and 87V if the 117, 116, 115, 114 don't have enough frillsCome to think of it, owning all three 117, 116 and 115 would cover a lot of bases and may be cheaper or same dollars as one 87V or 287
How to become a Forum Supporter? - Page 1
Forum section: electronics / general

author: Ranayna
author_rank: Super Contributor
timestamp: September 17, 2017, 07:52:17 pm
content: Hi everyone,maybe i am going blind or something...I could have sworn that there was a Paypal Button on the CLICK HERE to subscribe section to actually subscribe at some point...When i go to that link now, I get no options and am redirected to my profile.I have heard that Dave wanted to stop with the Paypal support options, has that already happened? I cannot use Patreon, because I do not have a credit card...

author: hermit
author_rank: Frequent Contributor
timestamp: September 17, 2017, 10:47:44 pm
content: http://www.eevblog.com/Donate in the tool bar.
How do antennas work? - Page 1
Forum section: electronics / general

author: German_EE
author_rank: Super Contributor
timestamp: September 17, 2017, 01:01:16 pm
content: https://en.wikipedia.org/wiki/E-plane_and_H-planeWell, that's the scientific explanation but I did find a much better one.“The wireless telegraph is not difficult to understand. The ordinary telegraph is like a very long cat. You pull the tail in New York, and it meows in Los Angeles. The wireless is exactly the same, only without the cat.”Albert Einstein
Science Vs. Music - video on youtube - Page 1
Forum section: electronics / general

author: v81
author_rank: Regular Contributor
timestamp: February 03, 2016, 09:55:15 pm
content: Found this music video on youtube.Fact that it features a DS1052E makes it worth posting right?Add fire, water and electricity.CYMATICS: Science Vs. Music - Nigel Stanfordhttps://youtu.be/Q3oItpVa9fs

author: Brumby
author_rank: Unknown
timestamp: February 04, 2016, 01:01:41 am
content: I hadn't seen this effect before:

author: vk3yedotcom
author_rank: Frequent Contributor
timestamp: September 17, 2017, 10:39:52 am
content: His latest is Automatica.Essential viewing for robotics fans.https://nigelstanford.com/Automatica/
What about owon oscilloscopes XDS3104E need your advice please - Page 1
Forum section: electronics / general

author: dssence
author_rank: Regular Contributor
timestamp: September 16, 2017, 09:45:21 am
content: Hello my friends I'm from Argentina, I'm mostly doing chip level repairs, and also some embedded projects. I'm about to buy an oscilloscope. I've been struggling getting an affordable 100mhz 4 channels scope but there's many crappy chinese on the market.Sadly in my country I can only afford buying the following. Yes I know you may start telling about other brands.. but I can only find the followings- UNI-T UPO2104CS Supposedly has Ultra phosphor technology but support on the site it's crap no manual no youtube reviews..- OWON Latest model XDS3104E has a local distributor in my country covering warranty if anything happens. So this is my way to go.But I would like to ask you what do you think about the following this scope hasan 8-bit ADC , and the advertise as having multi- gradient it's a way of saying they have some ultra phosphor tecnology .http://owontme.com/products_owon_xds3000-e_series_4ch_12Also bus decoding its optional on the Owon and on UNI-T it's being implemented although unit is shitThis is what I'm talking about when I mean about intensity gradientThe guy from OWON support answered on email the followingQuoteQuoteThis is the video the guy sent where he " SUPPOSEDLY" shows this intensity gradient or ultra phosphor , do you guys see the intensity grading ? I don't I just see red solid waveformhttps://drive.google.com/file/d/0B7WSDcV1o91TXzcyNm5nUUItaEMtWVZDRzl1Z2RpQWZscTUw/view?usp=sharing
How to fill in the ReCaptcha verification code - Page 1
Forum section: electronics / general

author: ansonbao
author_rank: Regular Contributor
timestamp: September 15, 2017, 07:54:24 am
content: whatever I fill the words,it shows I am wrong,anyone can help me what is the right?

author: sleemanj
author_rank: Super Contributor
timestamp: September 15, 2017, 07:55:56 am
content: In the picture, you would typescarpone zonebut of course it will have changed again by now!Maybe the site which is displaying the ReCaptcha is broken.

author: ansonbao
author_rank: Regular Contributor
timestamp: September 15, 2017, 07:57:21 am
content: Quote from: sleemanj on September 15, 2017, 07:55:56 ambetween the two words with blank space?

author: sleemanj
author_rank: Super Contributor
timestamp: September 15, 2017, 11:51:31 am
content: Yes

author: alanb
author_rank: Frequent Contributor
timestamp: September 15, 2017, 11:54:42 am
content: Is your keyboard outputting English, the data entered on your picture looks Chinese?

author: tszaboo
author_rank: Super Contributor
timestamp: September 15, 2017, 11:56:54 am
content: If you cannot fill out a captcha, it just means you are a robot. If you are not aware of this, that just opens a new set of questions. I suggest the philosophy forum for those.

author: senso
author_rank: Frequent Contributor
timestamp: September 15, 2017, 01:09:41 pm
content: You might be using the wrong alphabet

author: Red Squirrel
author_rank: Super Contributor
timestamp: September 15, 2017, 07:25:23 pm
content: I hate some of these, especially the one with the images, because they fade in so slowly when they ask for more. Get rid of the fade crap and just show it already!
Trump Blocks Acquisition of Lattice Semiconductor - Page 1
Forum section: electronics / general

author: Sal Ammoniac
author_rank: Super Contributor
timestamp: September 15, 2017, 03:24:55 pm
content: Trump has blocked a takeover of Lattice Semiconductor (a maker of FPGAs) by a Chinese-backed venture capital fund citing national security.http://money.cnn.com/2017/09/13/technology/business/trump-lattice-china

author: A Hellene
author_rank: Frequent Contributor
timestamp: September 15, 2017, 04:19:14 pm
content: Well, this confirms, more or less, the speculation ofsome peopleabout the SELECTION of Trump in office (with his twoKabbalist daughters) in order for him to dismantle the economic domination of China --one way or the other.Just see his bravado stance at the (Marxist) N. Korean government, to which the (Communist) Chinese government states to be their allies.-GeorgeP.S. I hope that it is clear that I am talking aboutthe governmentsof these places above and NOT aboutthe peoplewho live there and who always pay the price of the unfortunate games their governments always play against or upon them...<EDIT>: Corrections and additions.
Cassini spacecraft's end of mission Friday 15th September 2017 - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: September 12, 2017, 03:57:12 am
content: After nearly 20 years in space, Cassini will be plunging into Saturn's atmosphere this Friday. The Canberra Deep Space Communications Complex will be tracking Cassini's final 9 hours where loss of signal is expected about 1155H 15/09/2017 UTC. Earlier today, Cassini's RADAR was switched off. The following instruments will remain on during the final plunge:Gas Spectrometer & Magnetosphere ImagerIR & UV SpectrometersDust AnalyserMagnetometerRadio & Plasma Wave AntennasRadio ScienceWe should receive the final radio signals back at Earth about 1 hour and 42 minutes after transmission stops from Saturn.https://saturn.jpl.nasa.gov/https://eyes.nasa.gov/dsn/dsn.html

author: Halcyon
author_rank: Unknown
timestamp: September 15, 2017, 12:22:39 pm
content: Cassini is gone. For those who still want to go back and watch, the live feed allows you to "rewind"