hybridfree/eevblog-posts huggingface dataset:
dightal camera what to choose  - Page 1
Forum section: electronics / general

author: sony mavica
author_rank: Frequent Contributor
timestamp: March 02, 2016, 12:27:52 am
content: i have sold off my old 5mp and 4mp and a cheap 1.3mp 720p camera and have made $90 that is really the most i would like to spend on another camera as i don't really take very many photos probably like 10\15 a week as i mostly take videosi can get the sony DSCW810B for $89nzdorThomson DCEX4 for $91nzdorNikon Coolpix L31 for $90nzdjust can't make up my mind what one would be the better camera to get

author: nctnico
author_rank: Super Contributor
timestamp: March 02, 2016, 01:39:48 am
content: I'm quite happy with the Canon Ixus 1000HS camera I bought a couple of years ago (10Mpixels). Perhaps it can be bought used within your budget. It works well for filming and taking pictures.

author: Muxr
author_rank: Super Contributor
timestamp: March 02, 2016, 05:31:54 pm
content: Canon Ixus are pretty good. I second that camera.Anyways. Nowadays smartphones will outperform entry level cameras. So if you have a smartphone with a decent camera, there is really not much point in getting a dedicated entry level point and shoot.At around $300 is where you start seeing dedicated cameras really pull away from your general smartphone cameras.You have to think about it, a $100 camera still has to implement the body, processor and the screen, which leaves very little budget to the actual optics and the sensor in order to outperform a smartphone cam. Smartphone cameras get the processor and the screen "for free" so they can afford to splurge on a decent sensor and decent optics.The one thing you will get on point and shoot cameras is a zoom lens. However that's a double edged sword. Prime lenses (fixed focal length or non zoom lenses) like the ones on smartphones tend to be faster (wider aperture, more light gathering) and sharper. It's just the nature of not having to implement the zoom. So for most of your shooting at around 28mm focal length which is roughly the common focal lenght on smartphones. The smartphone image quality will outperform these cheap point and shoot cameras.If I was buying a pocketable point and shoot camera today, I would get a Panasonic LX100, Sony rx100 or Ricoh GR (V), anything else is not worth it over the smartphone like iPhone for instance.
This is a picture of my starting a prop that will contain the LM3914 - Page 1
Forum section: electronics / general

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 05, 2016, 01:10:24 am
content: So since everyone has been so helpful in assisting me in finding the right stuff required to pull off my project, I thought it would be nice to share me fabing, and building the prop gun, before i start to place the electrical components inside it. I would like to thank everyone who helped me find the right stuff for this build.This is the mock up, using 3/4" steel tube, and a broken stapler..This is after some cutting, filing and, peice placements still got a ways to go but this is the up to date pointThis is a top view, the 9 holes is where the LED's will be going.when i get it along further I will update it again. and Thank you all again.
Project FAX - Page 1
Forum section: electronics / general

author: SopaXorzTaker
author_rank: Contributor
timestamp: March 02, 2016, 12:35:37 pm
content: Help Gough Lui make a gallery of a phasing-out technology, the fax!http://goughlui.com/2016/02/28/project-fax-is-now-online/
Dissimilarities between engneers and managers - Page 1
Forum section: electronics / general

author: IconicPCB
author_rank: Super Contributor
timestamp: March 02, 2016, 03:11:34 am
content: A man is flying in a hot air balloon and realises he is lost. He reduces height and spots a man down below. He lowers the balloon further and shouts: “Excuse me, can you tell me where I am?”The man below says: “Yes, you’re in a hot air balloon, hovering 30 feet above this field.”“You must be an engineer” says the balloonist.“I am” replies the man. “How did you know.”“Well,” says the balloonist, “everything you have told me is technically correct, but it’s no use to anyone.”The man below says “you must be in management.”“I am” replies the balloonist, “but how did you know?”“Well,” says the man, “you don’t know where you are, or where you’re going, but you expect me to be able to help. You’re in the same position you were before we met, but now it’s my fault.”
Procrastinate-o-meter - Page 1
Forum section: electronics / general

author: Artlav
author_rank: Frequent Contributor
timestamp: March 01, 2016, 06:48:16 pm
content: First step to solving a problem is to recognize you have a problem.I suddenly wrote a little program that would track and log what you are doing at your PC (specifically, current active window every second), because i felt i might be spending way too much time online.In theory it should be a nice self-diagnosing tool, and knowledge is power.In practice, it was likely a bicycle-reinvention form of procrastination in itself, cause i was writing it instead of doing something productive.Anyway,http://orbides.org/page.php?id=1008(Windows only, tested on W7 only)I hope someone will find that useful.

author: GreyWoolfe
author_rank: Unknown
timestamp: March 02, 2016, 01:56:39 am
content: We should probably bring this topic up later.

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 02, 2016, 01:57:40 am
content: Quote from: GreyWoolfe on March 02, 2016, 01:56:39 amyeah most deffinatly when im not procrastinating..onward to youtube.

author: HAL-42b
author_rank: Frequent Contributor
timestamp: March 02, 2016, 02:07:03 am
content: Does it do recursion?Because sometimes I'm procrastinating from my main procrastinations and I go and do side procrastinations

author: TerraHertz
author_rank: Super Contributor
timestamp: March 02, 2016, 03:33:58 am
content: Now I'm procrastinating by reading an eevblog thread about a procrastination logger utility.Has anyone written a web crawler to analyze what proportion of articles are about procrastinating?Right now I should be doing a bit of metalwork for a power board for a rack. But due to being eagerly awaiting a parcel delivery, I can't concentrate. So web browsing instead.
Inexpensive Paper Sensor Skin - Page 1
Forum section: electronics / general

author: ToeJam
author_rank: Contributor
timestamp: March 01, 2016, 10:33:28 pm
content: http://hackaday.com/2016/02/29/build-your-own-sensor-skin/Hi all;This subject has my brain doing somersaults.That it uses common materials for pretty accurate results is amazing.I'm going to be attempting to re-create these sensors at home as it fits with a wider project in robotics.Dave; A nice 'scope would come in handy for thisCheersToejamSouthern Scotland
Bad capacitors chemistry - Page 1
Forum section: electronics / general

author: MadModder
author_rank: Regular Contributor
timestamp: March 01, 2016, 07:48:07 pm
content: I've up until now believed that all those bad capacitors of dubious origins fail during operation. But when I discovered a pretty chubby capacitor in one of my home brew power supplies, and looked for a replacement in my parts bins, those from the same manufacturer (JAKEC) were all inflated. And they've never been used! Straight down in the parts bin from the shopping bag, some five years ago or so. Always kept in room temperature.What's up with that?Have the electrolyte inside reacted to oxygen if the rubber seal was not, well, sealing properly?

author: tautech
author_rank: Super Contributor
timestamp: March 01, 2016, 08:04:42 pm
content: Your problem is not unheard of.Much discussion on your and other cap issues in this recent thread:https://www.eevblog.com/forum/projects/capacitor-quality/
periodic table elements profile pictures? - Page 1
Forum section: electronics / general

author: tjeulink
author_rank: Contributor
timestamp: March 01, 2016, 11:00:34 am
content: what is with all the pereodic table elements profile pictures on here? im new and i noticed a lot of people have their own element so to speak

author: rs20
author_rank: Super Contributor
timestamp: March 01, 2016, 11:02:56 am
content: Try selecting a profile picture for yourself -- you'll see that as well as uploading your own, there's a bunch of pre-loaded options. Including all the elements, for some reason.

author: tjeulink
author_rank: Contributor
timestamp: March 01, 2016, 11:12:19 am
content: i seethanks for explaining haha

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 01, 2016, 11:36:14 am
content: IO4(-): because chemists do it periodically.

author: GK
author_rank: Super Contributor
timestamp: March 01, 2016, 11:55:06 am
content: Wonder what the Rodmunds are doing with themselves now that we have gone lead-free.

author: PointyOintment
author_rank: Frequent Contributor
timestamp: March 01, 2016, 05:44:30 pm
content: Since we have a thread for these, what do you all think of them?I think they're extremely ugly (bizarre octagon shape, red shadow, out-of-style aqua look) and the text on them is very badly kerned in some cases.

author: ataradov
author_rank: Super Contributor
timestamp: March 01, 2016, 06:33:57 pm
content: Quote from: PointyOintment on March 01, 2016, 05:44:30 pmYeah, ugly as hell. I thought it was some third-party service. If they are offered by defaults, I'd rather see pictures of kittens

author: Artlav
author_rank: Frequent Contributor
timestamp: March 01, 2016, 06:50:02 pm
content: Quote from: ataradov on March 01, 2016, 06:33:57 pmOr foxes.

author: tjeulink
author_rank: Contributor
timestamp: March 01, 2016, 07:48:04 pm
content: Quote from: PointyOintment on March 01, 2016, 05:44:30 pmyea they're pretty ugly, but i like how everyone just uses them for some reason.
Where are people getting their VR content? - Page 1
Forum section: electronics / general

author: fantis1337
author_rank: Contributor
timestamp: March 01, 2016, 12:29:32 pm
content: Hi, I'm new here and was just wondering where people are searching for Virtual reality content. Is there any hubs such as youtube and do they cost anything?I'm getting a gear vr headset by buying Samsung's new S7 edge and was hoping to stock up some VRIs there anything "must see "or something that you have to experience?

author: Kilrah
author_rank: Unknown
timestamp: March 01, 2016, 02:28:44 pm
content: I tend to download 360° videos from Youtube and then load them onto the phone, as it's much easier to then browse to them than with the interface that clearely isn't made for easily finding content.

author: fantis1337
author_rank: Contributor
timestamp: March 01, 2016, 04:26:54 pm
content: I'll take note of that. Can't wait to try it out.

author: Artlav
author_rank: Frequent Contributor
timestamp: March 01, 2016, 04:31:19 pm
content: Hm, i make my own.Unfortunately it only works with Oculus Rift, so no riding the Space Elevator for you.Seriously, is it that one where you put a phone into a rig with lenses?Should the game run on the phone itself, or do you connect it to a PC?Never actually played with this kind of a solution.

author: Mechanical Menace
author_rank: Super Contributor
timestamp: March 01, 2016, 04:58:09 pm
content: Quote from: Artlav on March 01, 2016, 04:31:19 pmYeah, but Samsung's rig also has better sensors than are built into a phone so it's sort of an upgrade over Google's cradboard.QuoteThey run on the phone. But I'm not sure if the apps are on the general play store of if there's a separate one just for the VR apps.

author: fantis1337
author_rank: Contributor
timestamp: March 01, 2016, 07:18:34 pm
content: If I like it enough and if I can justify the extra $600 I'll go for Rift.
Digital Engingeering Lab Book - Page 1
Forum section: electronics / general

author: docmur
author_rank: Regular Contributor
timestamp: February 29, 2016, 09:22:16 pm
content: Hey GuysI'm looking for an open source engineering lab book, that has security and just plan works, does any have recommendations?

author: Leiothrix
author_rank: Regular Contributor
timestamp: February 29, 2016, 09:33:21 pm
content: Security, on a book?Perhaps you could write in ROT13 or something
Building a lab on a budget - Page 1
Forum section: electronics / general

author: rrinker
author_rank: Super Contributor
timestamp: February 29, 2016, 05:05:31 pm
content: I originally started adding some of this to my post in the "What did you buy today" thread but it was going off topic so I figured, why not stick it in its own topic, maybe some others would benefit, plus I try not to be "that guy" who derails long running threads by my usual rambling on.So here is the entire content I had been about to post there:And I finally have the last missing piece to finish my equipment needs - just won an Agilent E3610A power supply. Was listed at $85 plus shipping, I offered $75 and they took it. Comes from a test and calibration supplier (though they aren't calibrating it at this price - they do offer to calibrate it but did not supply a price for the service), and is guaranteed to be tested and working. Also they mention their packing methods - so I don't think there is much risk in having damage from shipping. Another plus, it comes from NJ (and I am in the eastern half of PA). This unit will suffice for now for my generally low current low voltage projects, though I'm sure in the future I'll want something a bit more high power, and maybe programmable (just because).Overall, much like I do with my other hobby (model railroading), I think I've done quite well with eBay. My electronic needs aren't such that I need the latest state of the art equipment, nor the ultimate in accuracy (while a 7.5 digit multimeter is pure measurement porn, I don't do anything nor do I have any plans to do anything hat would ever require such accuracy), so the older but high quality equipment like my Fluke meters is plenty adequate for my needs. The only new item I have is my Siglent scope, everything else is at least a 'few' years old (Fluke 8012, 8060, and 45).The point, I suppose, is that for the hobbyist type person, by careful searching and shopping, plus patience (ALWAYS need patience with eBay, lest you become sucked up in bidding wars and pay way more than you should for something), you can have a supply of perfectly workable equipment without spending a small fortune. It all depends on your needs, of course. Most anything I have would be next to useless to my best friend, who works with microwave and high frequency RF stuff. But it's also his job, not just a hobby.
tongue in the right angle? - Page 1
Forum section: electronics / general

author: ZeTeX
author_rank: Frequent Contributor
timestamp: February 27, 2016, 07:35:43 pm
content: first I seen my dad putting his tongue in the right angle when doing something tricky, then I saw dave, and other youtuberswhere did it started and why ?

author: Gyro
author_rank: Super Contributor
timestamp: February 27, 2016, 09:58:03 pm
content: Yes there is a psychological/physiological reason for it, I saw it on a documentary recently, I'm pretty sure it was 'The Brain with David Eagleman'...http://www.bbc.co.uk/programmes/b06y8hyrIt struck a chord because I do it and so did my Dad. I think it has the effect of somehow blocking sub-vocalization to allow greater concentration on a spacial task, but can't remember the exact detail.EDIT: Ah, nearly right:http://www.sciencefocus.com/qa/why-do-i-stick-out-my-tongue-when-i-concentratehttp://www.thenakedscientists.com/forum/index.php?topic=25239.10;wap2

author: calexanian
author_rank: Super Contributor
timestamp: February 29, 2016, 05:50:50 am
content: Tongue angle is also affected by the brand and model of the tool being used for adjustment. Very critical.
Most noisy capacitor/PCB ? - Page 1
Forum section: electronics / general

author: Jaunedeau
author_rank: Regular Contributor
timestamp: February 26, 2016, 06:31:18 am
content: I just saw EEVlog #885 video, where Dave replace some ceramic smd cap to greatly reduce the humming from a multimeter.What if you want maximum sound emited from your capacitors ? Let's say I want to play the emperor's march not using brushless motors one a floppy drive / cnc, but I juste want the acoustic noise from the circuit to sound familiar and loud ?-Which are the more noisy capacitor I can find ?-Should I use different size / capacity for each different note ? OR maybe one for treble, one for mid, one for bass ?-I noticed that the caps don't emit sound when aire soldered to thin wires. I guess the PCB acts as a guitar's soundboard (and maybe some other effect occures ?). What should be the best thickness for pcb ? (thiner = noisyer ?) What would be the most noisy pcb shape ? (maybe you need to have a small tab with a resonati frequency equal to the note you want the cap to produce, then a larger pad to transmit pcb vibration to air ?)treg.

author: radar_macgyver
author_rank: Frequent Contributor
timestamp: February 26, 2016, 06:36:56 am
content: I would think they'd be Y5V or Z5U ceramics. These exhibit microphonics (tap them and they'll produce a voltage) so the opposite would be true as well.As for the PCB, perhaps a slot cutout on three sides with the cap in the middle? Size the cutout to match the frequency of interest. Have more than one, with different sizes for bass/treble?Would make a great easter egg to have your board sing to you

author: Jaunedeau
author_rank: Regular Contributor
timestamp: February 26, 2016, 07:47:20 am
content: I found a doc saying that :-Putting the cap in the center generates more noise-Lower voltage capacitor are noisyer-Putting 3 caps in parallal generated +14db sound-Thiner PCB means more noiseI now need to find long white, short white, and short black capacitor to make some keyboard shaped layout. Why don't mouser allow to search by color ?

author: Stonent
author_rank: Super Contributor
timestamp: February 27, 2016, 02:09:58 am
content: Might be fun to hard wire an SMT cap to the end of some coax and do some frequency domain analysis on it by stimulating it with perhaps a piezo transducer on a signal generator.

author: sarepairman2
author_rank: Frequent Contributor
timestamp: February 28, 2016, 08:39:15 pm
content: using a capacitor as a input device seems like an interesting idea.instead of buttons/etc you just use touch sensitive capacitors and scan for microphonics.They will never wear out or anything, since there are no moving parts. and no sensitivity to grime and whatnot. very cheap too.
Australia -not- Austria. Even CNN ! - Page 1
Forum section: electronics / general

author: cybermaus
author_rank: Frequent Contributor
timestamp: March 02, 2016, 06:44:31 am
content: http://www.news.com.au/entertainment/tv/cnn-is-very-confused-about-australia-and-austria/news-story/cd45b9f1f4d602d7d89c6c469c593c94

author: vk6zgo
author_rank: Super Contributor
timestamp: March 02, 2016, 07:26:16 am
content: Quote from: cybermaus on March 02, 2016, 06:44:31 amOf course,if us English speakers just used Austria's real name,Österreich,there would be no confusion.We can't really sneer---I've seen some silly captions on Oz TV.The best,although it was years ago,was when they put up the caption "The Legands",for a"veteran's"football match.I was always under the impression that a "Legand" was a member of a Roman Legion.In another embarrassing episode,the subtitling over a background briefing during the Queensland floods a few years back,inadvertently brought up the "N" word!

author: Halcyon
author_rank: Unknown
timestamp: March 02, 2016, 08:02:58 am
content: Speaking of ridiculous things on TV, I remember years ago watching Burke's Backyard with teletext captions turned on. I'll never forget when Don Burke chuckled, the captions read[DON GRUNTS AND SNORTS]. Someone at the subtitling centre having a bit of fun?https://www.youtube.com/watch?v=M6CF3uVyxsE&feature=youtu.be&t=2m31sOr if you prefer, the Full Frontal version:
Looking for good quality toroid transformer manufacturer in China - Page 1
Forum section: electronics / general

author: maxpayne
author_rank: Regular Contributor
timestamp: February 28, 2016, 10:36:51 am
content: I am looking for a good quality transformer manufacturer in China. I need to manufacture dc-dc boost toroid (12V to 40V push pull) transformer for commercial use. My present manufacturer didn't satisfied me as there is lot of leakage inductance which is causing trouble.Does anybody know any company in China as my production will be China based?

author: Tinkerer
author_rank: Frequent Contributor
timestamp: February 28, 2016, 05:19:44 pm
content: http://diyfan.blogspot.com/2012/02/adjustable-lab-power-supply.htmlI think, but I am not 100% sure that this guy ordered his toroids from China. Heres a link to the page his power supply project is on. I dont remember if he stated where he bought them from or not but I seem to remember them being order from one of the countries over there. This may or may not help so I figured I would post it.

author: maxpayne
author_rank: Regular Contributor
timestamp: February 28, 2016, 05:25:11 pm
content: Quote from: Tinkerer on February 28, 2016, 05:19:44 pmThanks. I will chk it out

author: maxpayne
author_rank: Regular Contributor
timestamp: February 28, 2016, 05:33:52 pm
content: Quote from: maxpayne on February 28, 2016, 05:25:11 pmDidnt find anything !
Automotive connector indentification (Reward for correct answer) ! - Page 1
Forum section: electronics / general

author: kilohercas
author_rank: Regular Contributor
timestamp: February 23, 2016, 09:08:57 pm
content: Hello. Some of you might now that i am working on project where i am converting Lenovo Phab Plus to car navigation system. So far so good, was able to achieve everything i want, but i was unable to find power and audio connector:This is 4mm pitch 16 contacts double connector, manufactured by some kind firm that logo is R or something. All other connectors are TE Connectivity AMP Connectors and JAE electronics.Here are few pictures. Car is Subaru BRZ Series BlueIf some one know where i can buy this, and it is in stock, i can send you high power mosfet's, STM32F4 micro-controllers, and so on as reward

author: kilohercas
author_rank: Regular Contributor
timestamp: February 25, 2016, 02:32:53 pm
content: any one ?

author: eugenenine
author_rank: Frequent Contributor
timestamp: February 25, 2016, 03:24:08 pm
content: Can't tell from the picture but are the pins hollow or is that just a reflection.Several manufacturers standardized on metripack, if they are not hollow it looks somewhat like that.

author: SaakNeMah
author_rank: Newbie
timestamp: February 25, 2016, 07:39:31 pm
content: Looks like a TE Multilock?They have the two 'tabs', like on the picture (some are broken though).Maybe a custom part, but seperate 10p & 6p connectors may work as well.Something like a 175657-1 or a 174465-1, not sure on the male vs. female (crimps vs. housing).RS has them in stock.Anyway, check it for yourself and take measurements, but I would bet on the Multilock

author: kilohercas
author_rank: Regular Contributor
timestamp: February 26, 2016, 05:09:31 am
content: Quote from: SaakNeMah on February 25, 2016, 07:39:31 pmYes, they look like this connector, but pinout , pitch is wrong. also key slots are in wrong place. I try to sweep TE catalog, but nothing matched...

author: Brumby
author_rank: Unknown
timestamp: February 26, 2016, 05:50:05 am
content: Just to clarify - Do you want the same connector as displayed - or the plug(s) that go into it?Like these:

author: Brumby
author_rank: Unknown
timestamp: February 26, 2016, 09:37:24 am
content: Thinking you want the connector as displayed....The best I've come up with is the inline (2 part) version: Metra 70-1761which seems to be available from a number of places such as:http://www.sonicelectronix.com/item_12502_Metra-70-1761.htmlandhttp://www.amazon.com/Metra-70-1761-Wiring-Harness-Speaker/dp/B0002BEQJ8Don't know about the R/A PCB mount version though.

author: danjenkins
author_rank: Contributor
timestamp: February 27, 2016, 12:42:00 am
content: Have you looked at Weidmuller?http://www.clrwtr.com/PDF/Weidmuller/Weidmuller-HSB-Heavy-Duty-Connectors.pdf

author: kilohercas
author_rank: Regular Contributor
timestamp: February 28, 2016, 09:45:47 am
content: Quote from: Brumby on February 26, 2016, 09:37:24 amThis is my backup plan, already get this from my lock electronics store, and will wire to simple IO connectors, and wire it to that connector
Are these things safe? - Page 1
Forum section: electronics / general

author: Digibin
author_rank: Regular Contributor
timestamp: February 29, 2016, 08:44:53 pm
content: A friend of mine is thinking of buying one of these high capacity LiPo battery packs along with this charger:http://www.hobbyking.co.uk/hobbyking/store/__66487__Multistar_High_Capacity_6S_16000mAh_Multi_Rotor_Lipo_Pack_AR_Warehouse_.htmlhttp://www.hobbyking.co.uk/hobbyking/store/__64345__Turnigy_Accucel_6_80W_10A_Balancer_Charger_LiHV_Capable.htmlInformation on the web page is limited. I don't know if these originate from China, my guess would be yes. I don't know if they have any protection circuitry built in (over discharge, under and over voltage protection).The charger page says it can balance up to 6 LiPo cells (the 16000mAh pack is a 6 cell pack) and it looks to have the right connector on the output side of the box (one for power and one for sensing cell voltages). But it doesn't mention anything about monitoring temperature, which I would have liked to see.Generally they look okay but the lack of information is unsettling. Since my friend isn't really into electronics I wanted to be sure they're safe for use by the general public. The charger is apparently RoHS compliant and CE marked. But if they come from China then there's just no knowing how safe they really are.Would you use them?

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: February 29, 2016, 09:21:22 pm
content: Dave did a teardown of a lower rated model where he said mostly positive things from what I remember.https://m.youtube.com/watch?v=3LfU4mjgpyMI bought the 50W model after the I saw the video and from my experience it seems like a good charger, you can specify the charging parameters via the onscreen menus or by hooking it up to your computer where you can also monitor the charging/discharging process.

author: retrolefty
author_rank: Super Contributor
timestamp: February 29, 2016, 09:44:29 pm
content: Turnigy is a 'good' name is the R/C hobby world for many years now, but it's all about the details.
My somewhat cool dumpster finds of today - Page 1
Forum section: electronics / general

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 01, 2016, 07:52:20 pm
content: still in the bagthis was really a nice find..well at least for me.i scavanged some old pots..but a pots a pot

author: wkb
author_rank: Super Contributor
timestamp: March 01, 2016, 08:53:52 pm
content: Pfui.... expensive hobby to can those I'd say! Nice find!

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 01, 2016, 10:42:01 pm
content: thank you, the only find i will not post is the GSU from a stinger missle that was tossed. as it might pose security risks. only people who have access to my photobucket can see that.

author: ToeJam
author_rank: Contributor
timestamp: March 01, 2016, 10:45:55 pm
content: Nice!

author: RobertoLG
author_rank: Frequent Contributor
timestamp: March 01, 2016, 10:48:34 pm
content: golden dumpster, huh?

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 02, 2016, 12:00:41 am
content: Quote from: RobertoLG on March 01, 2016, 10:48:34 pmyou would not believe the stuff the military base tosses out. i have 4 full reels of monolithic capacitors, and resistors that were never even opened. they tossed out 4, 50,000 watt mobile power units, i took them back to the shop i work at, but have no way of getting them to my house. no idea what to do with them.

author: RobertoLG
author_rank: Frequent Contributor
timestamp: March 02, 2016, 12:14:06 am
content: Quote from: Shadetreeprops on March 02, 2016, 12:00:41 amthat's cool! could you post some pics, at least the stuff that won't get you in trouble?

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 02, 2016, 12:27:26 am
content: Quote from: RobertoLG on March 02, 2016, 12:14:06 amfluxcapacitor84--theres my photobucket guest pass have at it. i update it everytime i find stuff, and then post it here.

author: AF6LJ
author_rank: Unknown
timestamp: March 02, 2016, 12:29:30 am
content: Nice

author: jambrose
author_rank: Unknown
timestamp: March 02, 2016, 01:04:43 am
content: Ooh! Nice, shiny, and pristine looking! I've been amazed at what you've been finding.

author: Shadetreeprops
author_rank: Regular Contributor
timestamp: March 02, 2016, 01:41:50 am
content: Quote from: Alex Eisenhut on March 02, 2016, 01:22:30 amOkay, since you posted a racoon, and you would not even believe why i find that so funny i almost spit up my coffee..If you are in the USA, and you pay the Small Flat rate fee. $6.00 USD to my pay pal, give me your adress. ill box em up and send em out too you. and so you do not think i am trying to get ya. I run a ebay store for vintage video games. GEEKERSGAMES LLC. just under GeekersGames.FYI- there are racoons all over the base i get stuff like this from. I have had to shoo away so many to get to some premo stuff in my 5 years.
Plumbum.... A "other Metal" by any other name would smell just as sweet. - Page 1
Forum section: electronics / general

author: Cliff Matthews
author_rank: Unknown
timestamp: February 26, 2016, 10:39:48 pm
content: This tongue-in-cheek solder review is worth a smile -http://www.amazon.com/review/R1VK2QLA5M0FFS/ref=cm_cr_dp_title?ie=UTF8&ASIN=B0149K4JTY&channel=detail-glance&nodeID=228013&store=hi

author: jambrose
author_rank: Unknown
timestamp: February 26, 2016, 11:08:45 pm
content: Haha Love it! Though they neglected to mention the toxicity of the flux in Pb-free solder.

author: JoeN
author_rank: Frequent Contributor
timestamp: February 26, 2016, 11:18:26 pm
content: I've read that exact review before. That is the solder I keep and reorder by default, though I keep a roll of the .4mm version too. Only one kind of solder, this one, the best, but two widths.
/diy/ vacuum tubes - Page 1
Forum section: electronics / general

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: February 25, 2016, 10:23:32 am
content: Found a cool post on the /diy/ board of 4chan:http://boards.4chan.org/diy/thread/946133/hi-diy-i-make-vacuum-tubes-i-make-other-things-asBasically OP makes his own vacuum tubes and documents the process here:http://simplifier.neocities.org/From what he showed the things work as well, super cool what you can make if you have the knowledge

author: ElectricGuy
author_rank: Regular Contributor
timestamp: February 25, 2016, 11:30:31 am
content: Check this videos also, if you into this kind of thing;https://www.youtube.com/user/glasslinger/videos

author: nowlan
author_rank: Frequent Contributor
timestamp: February 25, 2016, 01:04:35 pm
content: http://www.ruediger-walz.de/http://www.imajeenyus.com/vacuum/index.shtmlhttp://www.tubecrafter.com/http://www.jb-electronics.de/html/elektronik/nixies/eigenbau/index.htm?lang=enhttp://www.pwl.mikrokontroler.pl/pwl/pwl_e.htmhttp://www.pwl.mikrokontroler.pl/http://dalibor.farny.cz/another-nixie-tubes-made/

author: jwm_
author_rank: Frequent Contributor
timestamp: February 25, 2016, 01:10:03 pm
content: This is a very soothing series of videos showing one craftsman's process. I like how most of the equipment is custom hand made.part 1part 2

author: Andy Watson
author_rank: Super Contributor
timestamp: February 25, 2016, 01:36:04 pm
content: Quote from: jwm_ on February 25, 2016, 01:10:03 pmYes it's an awesome effort. He made the valves to mark the centenary (? I think) of their invention. He was attempting to use the tools and techniques that were available at the time of the invention - hence all the hand-made equipment - I think he had to compromise slightly with the turbomolecular pump, but it's still pretty impressive. Check out his website for more detail:http://paillard.claude.free.fr/

author: station240
author_rank: Unknown
timestamp: February 25, 2016, 01:59:58 pm
content: Curious there is no getter material on the inside.There is a youtube video somewhere that explains how they activate the getter when it is inside the tube, involves RF.
A google search revealed this ..... wtf I ask .... - Page 1
Forum section: electronics / general

author: xwarp
author_rank: Frequent Contributor
timestamp: February 25, 2016, 10:43:50 am
content: Apparently, someone is looking for advice on an ESR meter, and one of the replies is as listed as part of the search as shown in the picture.If I had known the 8842a 4 wire 2 ohm range tested ESR, I would not have bought the DE-5000....Am I missing something here?

author: tom66
author_rank: Super Contributor
timestamp: February 25, 2016, 10:49:59 am
content: Nope, an ESR meter measures high-frequence ac impedance.You need a high frequency test signal to measure it, an 8842A doesn't do that.

author: xwarp
author_rank: Frequent Contributor
timestamp: February 25, 2016, 10:55:43 am
content: I am a member of that forum. I found that thread and am disappointed that a well informed member that replied did not correct that fella for giving the o.p. bad information.Decent quality 4 wire meters aren't cheap and to have someone reply like that is reckless in my opinion.

author: kripton2035
author_rank: Super Contributor
timestamp: February 25, 2016, 11:08:30 am
content: Tom66 is right : the 8842A has a 2 ohms DC rangeyou need an AC signal to measure capacitor esr, and then a low ohm measurmentan esr meter measures AC ohms, generally around 100KHzthe DE5000 is an LCR meter, so far more capable than a simple ESR metersee examples on my esr repository (link below)

author: xwarp
author_rank: Frequent Contributor
timestamp: February 25, 2016, 11:17:47 am
content: Apologies if I did not convey the sarcasm in my original post better...
Brymen magnetic hanger german edition ? </sarcasm> - Page 1
Forum section: electronics / general

author: nogood
author_rank: Contributor
timestamp: February 23, 2016, 06:46:15 pm
content: Hi,I thought I would finally register on this Forum to ask if anyone could tell me what Brymen wants to tell me with their magnetic hanger molding.As a german I thought it was slightly weird. Is that an international sign for electricians ?Edit: This may seem funny (and it is), but I am genuinely curious as to why there are marks like this. Any ideas ?

author: Maxlor
author_rank: Frequent Contributor
timestamp: February 23, 2016, 11:10:14 pm
content: Never noticed it before, but yeah mine has the same symbols on it. It means nothing of course, but I still don't like the associations that come to me when I see that symbol.

author: nogood
author_rank: Contributor
timestamp: February 24, 2016, 01:09:11 am
content: I am wondering if the tooling to fit the magnet messed up some sort of logo, but on the other hand the similarity is really there. (what sort of logo would that be anyway)Edit: I figured it out ... I'm pretty sure that the "circle" at the bottom is the lower part of a stylized magnetSo the "lightning" is probably displaying it's magnetic field.Interesting what connections the mind draws if you can't assess the whole image.

author: Brumby
author_rank: Unknown
timestamp: February 24, 2016, 02:30:38 am
content: If you look closely, you will see that the top outer edges of the circular section are actually straight - so the horseshoe magnet shape is quite probable.I've traced out what it might have looked like originally.....Not sure if that makes it any better ...

author: RobertoLG
author_rank: Frequent Contributor
timestamp: February 24, 2016, 02:42:50 am
content: maybe some brotherhood of the bell secret code thing

author: nogood
author_rank: Contributor
timestamp: February 24, 2016, 03:00:23 am
content: Quote from: RobertoLG on February 24, 2016, 02:42:50 amYes probably indicating mind control raysQuote from: Brumby on February 24, 2016, 02:30:38 amYeah, I am pretty sure of that. Although I have never seen magnetic force drawn like thatAlso, why even bother when you have to drill a hole to fit a magnet ? Meh, I feel dumb now

author: RobertoLG
author_rank: Frequent Contributor
timestamp: February 24, 2016, 03:19:08 am
content: Quote from: nogood on February 24, 2016, 03:00:23 amyeah maybeLOL

author: rrinker
author_rank: Super Contributor
timestamp: February 24, 2016, 04:01:54 am
content: Quote from: RobertoLG on February 24, 2016, 03:19:08 amDo not aim that side at your head.
18000 Amps! - Page 1
Forum section: electronics / general

author: HP-ILnerd
author_rank: Frequent Contributor
timestamp: February 23, 2016, 04:49:34 pm
content: John from the NYC CNC channel got a tour of the machine shop at Lawrence Berekely Labs from OxToolCo's amazing Tom Lipton (at his day job), and among a whole bunch of other neat things, got to see one of the accelerator magnets! Chilled to 4 Kelvins, they shove 18000 amps through an alarmingly thin (now superconducting) lead! Some fascinating details on how some of that stuff works:

author: HAL-42b
author_rank: Frequent Contributor
timestamp: February 23, 2016, 11:10:56 pm
content: Tom is a cool dude. Makes me kinda jealous though...

author: crispy_tofu
author_rank: Super Contributor
timestamp: February 23, 2016, 11:34:04 pm
content: That is very cool, thanks.

author: sarepairman2
author_rank: Frequent Contributor
timestamp: February 24, 2016, 12:33:48 am
content: did anyone imagine themselves as the squirrel from the movie "ice age" trying to remove that acorn from the crevice when they showed that precision cnc machine that does the mirror like finish?
We got any home HVAC gurus in here? A wiring question... - Page 1
Forum section: electronics / general

author: cvanc
author_rank: Frequent Contributor
timestamp: February 23, 2016, 02:27:19 pm
content: My house has two absolutely identical HVAC systems (furnaces/central air/thermostats). However the wiring on the control board in the two furnaces is different. Specifically the "Y" terminal (cooling command) is wired different between the two systems.On one system, the Y wire from the thermostat is connected to the Y terminal on the control board, and the 2 wires from the compressor outside are connected to C and Y (I understand this to be the typical, expected wiring).On the other system, nothing is connected to the Y terminal on the control board. The Y wire from the thermostat and one of the wires from the compressor are wire-nutted together in midair. The other wire from the compressor is connected to C, and all other wires from the thermostat match the first system.Any ideas why I have that midair splice? And... for the life of me I can't see how the cooling could EVER work with it wired the way it currently is. And yet it seems to work fine.?

author: kolbep
author_rank: Frequent Contributor
timestamp: February 23, 2016, 02:38:09 pm
content: The Y terminal on the control board could just be a point where the thermostat and compressor connect together.Maybe the Thermostat is powering the Compressor directly, and has nothing to do with the control board.The manufacturers could have put the Y terminal there just to provide a neat place to join the compressor and thermostat wires. If that is the case, then in the 2nd case, the thermostat is still directly connected to the compressor.But, if you could post a pic, it will be more helpfulP

author: rrinker
author_rank: Super Contributor
timestamp: February 23, 2016, 03:04:24 pm
content: What he said. Sure sounds like it's just a convenient wiring point and doesn't actually connect to anything on the inside portion of the system.Mine's a lot different, because I have separate heating and cooling systems - I have FOUR thermostats - 3 heating zones plus the AC.

author: jmctech
author_rank: Contributor
timestamp: February 23, 2016, 03:37:20 pm
content: Your typical thermostat sends power down the y terminal (a/c compressor) and the g terminal (main fan on furnace) when the thermostat calls for air conditioning, the way you describe it it will work properly. Most furnace boards the y terminal is just a junction point. For the outside compressor and thermostat.Sent from my SAMSUNG-SM-N920A using Tapatalk
A very interesting 'maker' video. - Page 1
Forum section: electronics / general

author: hamster_nz
author_rank: Super Contributor
timestamp: February 23, 2016, 12:10:37 am
content: You've all seen the "I was born to be a Maker" videos.This is one you really want to see:He is really particular about the tools he uses too.

author: XOIIO
author_rank: Super Contributor
timestamp: February 23, 2016, 12:51:41 am
content: This is great, and I am now in serious pain as laughing, or even chuckling with this cold is pure hell.

author: breadbox
author_rank: Contributor
timestamp: February 24, 2016, 11:57:28 pm
content: That fellow should meet this fellow:http://www.independent.co.uk/life-style/gadgets-and-tech/features/how-to-make-a-toaster-1767243.html

author: strangersound
author_rank: Regular Contributor
timestamp: February 25, 2016, 12:09:18 am
content: He's toasted, alright. As a showcase for his production skills, it's definitely on point. Glad to see he did some wheat bread. I prefer my toaster oven, though. Not only can I make toast, I can make toast that has stuff on it...like a sandwich. The next level.

author: hamdi.tn
author_rank: Frequent Contributor
timestamp: February 25, 2016, 12:10:05 am
content: okay that was ...i have to respect how he look serious while talking about toasting bread
Raspberry Pi 3 is (almost) here - Page 1
Forum section: electronics / general

author: Puffin
author_rank: Unknown
timestamp: February 26, 2016, 08:48:59 pm
content: http://www.theregister.co.uk/2016/02/26/raspberry_pi_3/Includes BLE and Wifi

author: tom66
author_rank: Super Contributor
timestamp: February 26, 2016, 09:10:59 pm
content: I can see what appears to be a BLE chipset on the PCB, but I'm not sure if that's big enough to be a Wi-Fi device...especially given the size of what appears to be an SMT antenna. I hope it interfaces over PCI-E (internally) if the BCM2836 supports that, the USB Ethernet is quite slow.I'm really hoping they'll spin out a BCM chip with integrated 10/100/1000 Gigabit ethernet and SATA - I don't expect a fully fledged SATA connector but some kind of expansion port to support that would be super nice.

author: Stonent
author_rank: Super Contributor
timestamp: February 27, 2016, 02:05:49 am
content: Yeah I think that would be a nice add-on, having the ability to use a SATA drive directly.
LG announce modular smartphone - Page 1
Forum section: electronics / general

author: chris_leyson
author_rank: Super Contributor
timestamp: February 21, 2016, 02:20:53 pm
content: http://www.bbc.co.uk/news/technology-35623823Interesting to see one of the big payers pick up the modular concept.I wonder when we will see the Danaher 2ch scope prugin

author: Halcyon
author_rank: Unknown
timestamp: February 22, 2016, 11:07:44 am
content: I'm surprised it's as soon as the G5. I remember a similar Kickstarter project which had merit but no where near the hardware capabilities of the 'big players'. Good on LG. As much as I hate their televisions, they make an excellent Android handset... dare I say it... even better than Sony. I've got the LG G4 and it's brilliant. Stability is great, battery life is well above average (although not quite as good as the Sony Xperia's), still, I get 2-3 days out of a single charge. The camera however is the best I've *ever* seen in a mobile handset. Shits all over the Samsung's -- Apple's cameras are like dodgy VGA webcams in comparison.

author: dannyf
author_rank: Super Contributor
timestamp: February 22, 2016, 12:09:48 pm
content: It seems to be just gimicky. Iphones seem to have fine battery life, with good engineering.Marshmallows doze is being rolled out and doesn't seem to work that well - I have a g4 on marshmallow and it has worse battery life than it did on lollipop.The g4 is a disappointment for me coming from a g2 - that's a great phone with phenomenal battery life: very low DPI setting that redenders the high resolution screen useless, poor battery life, limited LTE bands, hot, to name a few.It liked its sim slot and dual sim - on the dual sim version - and CDMA / GSM compatibility.If I were a lg shareholder, I would seriously doubt lgs viability in the mobile handset business.
Difference between Electrical and Electronic engineers? - Page 1
Forum section: electronics / general

author: fubar.gr
author_rank: Unknown
timestamp: February 22, 2016, 06:59:58 pm
content: I always thought that Electrical engineers mainly deal with distribution transformers, electrical motors, power transmission lines, inverters and so on.Electronics engineers deal with MCUs, SMPS, filters, amplifiers, etc.But I came across this forum here:http://boards.straightdope.com/sdmb/showthread.php?t=784556If you read through the posts, they seem to use the term Electrical Engineer to mean both Electrical and Electronic Engineer.Here's an example:QuoteIs this some US vs Europe thing?

author: T3sl4co1l
author_rank: Super Contributor
timestamp: February 22, 2016, 07:17:39 pm
content: I'm an "electrical engineer" who does the techy (PCB level) stuff...The distinction is unused over here.Tim

author: German_EE
author_rank: Super Contributor
timestamp: February 22, 2016, 09:21:18 pm
content: I'm an Electrical Engineer who used to service elevators, before that I worked on printing equipment. Now that I'm semi-retired I no longer touch the heavy stuff and I'm concentrating more on ham radio and electronics.
Well, if you need it... Tesla car for kids - Page 1
Forum section: electronics / general

author: TinkerFan
author_rank: Regular Contributor
timestamp: February 20, 2016, 04:31:24 pm
content: http://spectrum.ieee.org/view-from-the-valley/transportation/advanced-cars/move-over-cozy-coupe-teslas-got-a-kiddie-carI useed to have one of thosehttps://en.wikipedia.org/wiki/Bobby-Car, but that seems obsolete.I've heared there were kids around that even used to build their own cars...

author: Simon
author_rank: Unknown
timestamp: February 20, 2016, 05:58:01 pm
content: Nice toy, which I was a boy again. Not so sure about the too accessible speed limit switch, it should be hidden away so that only parents can change it over.
where can I find cheap international shipping supplier like TME - Page 1
Forum section: electronics / general

author: nour
author_rank: Frequent Contributor
timestamp: February 19, 2016, 10:48:03 pm
content: I am currently buying almost all my stuff from TME.euthe shipping fee for the first 5 KG is 25$ which is very cheap comparing to othersSadly they are not as powerful as digikeyDoes anyone know another supplier like TME or betterthat ship internationally with low fee