hybridfree/eevblog-posts huggingface dataset:
where can I get a 5 pin female plug for ZD 912 solder station - Page 1
Forum section: electronics / general

author: philbaker
author_rank: Contributor
timestamp: November 01, 2012, 04:11:36 pm
content: I want to connect a different temp controlled iron to my Duratool ZD-912 station. The panel mounted socket has 4 male pins and a threaded outer sleeve. My Aoyue iron has a 5 pin screw on female plug. Is it possible to get a plug to convert the iron (or maybe to convert the station's socket).

author: amyk
author_rank: Super Contributor
timestamp: November 01, 2012, 04:25:11 pm
content: IIRC they are standard DIN plugs.But you will likely run into issues with heater and sensor compatibility (thermocouple vs thermistor, heater resistance/wattage.)

author: robrenz
author_rank: Super Contributor
timestamp: November 01, 2012, 04:33:01 pm
content: There are 2 different 5 pin din standards the angles between the pins is different, beware.

author: philbaker
author_rank: Contributor
timestamp: November 01, 2012, 04:45:23 pm
content: Ok thanks both for wuick replies, maybe I'll just get a new Duratool iron!

author: david77
author_rank: Frequent Contributor
timestamp: November 01, 2012, 05:53:58 pm
content: It is not a DIN plug you need. The Zhongdi stations use plugs like CB radio used it for microphones.Similar to this:http://www.maas-elektronik.com/NC-522-Mikestecker-8-pol.2.html

author: philbaker
author_rank: Contributor
timestamp: November 02, 2012, 12:14:49 am
content: David77, Thanks for your advice! I've ordered a mike plug - it looks right and is cheap. I 'll try it on the Aoyue iron and see how it goes.
They dont make capacitors like they used to. - Page 1
Forum section: electronics / general

author: G7PSK
author_rank: Super Contributor
timestamp: November 01, 2012, 06:11:29 pm
content: I have a vintage frequency meter from a war time power plant (1942) As it reads 51 HZ when connected to the mains and my other meters are giving 50 or 49.5 I decided to have look inside. When I opened it the first thing I saw was a capacitor or rather a Muirhead condenser rated at 250 volts 1.5 micro farad, the first thing I did was check this with my new ESR meter, which gave me 1.56 micro farad and an ESR of 0.26, so nothing wrong here. Rather good for a 70 year old capacitor or should that be condenser.

author: SeanB
author_rank: Super Contributor
timestamp: November 01, 2012, 06:19:53 pm
content: Probably the vibrating plate has worn or shifted with time. You might be able to calibrate it to read correctly again.

author: G7PSK
author_rank: Super Contributor
timestamp: November 01, 2012, 06:29:00 pm
content: No vibrating plate it is a moving coil and the capacitor and a number of inductance's producing two rotating field's in some fashion as far as I can tell. Don't want to take it down any further. I do have a 1937 unit that has a vibrating plate and 31 reeds set for 25 HZ most likely from a traction power house. I have attached a picture of the movement showing the coils.
Commercial LCR meters question. - Page 1
Forum section: electronics / general

author: firewalker
author_rank: Super Contributor
timestamp: October 26, 2012, 02:58:00 pm
content: The majority of commercial LC meters measure the impedance of the DUT on a range of frequencies,notthe resonant frequency the DUT produces. Correct?Alexander.

author: free_electron
author_rank: Super Contributor
timestamp: October 26, 2012, 02:59:31 pm
content: correct.if you want the resonance plot you need a vna style machine that can sweep. there are LCR machines that can do this. they are called parameter analysers .. and they start at 50k$ ...

author: PA4TIM
author_rank: Super Contributor
timestamp: October 26, 2012, 05:36:09 pm
content: Good LC meters measure impedance but split it up in reactance and resistance.If you measure at resonance you are left with the resistance. Or do you mean the meters that oscillate and measure the frequency shift caused by the added C or L, like the Tek 130 and many modern cheap uP based LC meters.A VNA or RF-IV meter will give resonance curvesWhy you ask ?

author: firewalker
author_rank: Super Contributor
timestamp: November 01, 2012, 04:00:43 pm
content: A friend of mine started from scratch to build one of those DIY frequency, L/C meters. He had some troubles with the counters/timers and asked my help. As a side effect I had a more general view to the way those meters works.There is a very popular design with an LM311 comparator configured as an L/C oscillator. Many people claim to be fairly accurate.I would thought that the LC-oscillator's frequency won't be stable enough. Maybe they are doing some tricks inside the code.Alexander.
Ersa Micro Tool iron - which station can I use it with? - Page 1
Forum section: electronics / general

author: philbaker
author_rank: Contributor
timestamp: October 31, 2012, 09:34:48 pm
content: I have a nice ERSA micro tool soldering iron, in excellent condition which came as part of a job lot of soldering equipment. Trouble is, I don't have a station for it. Conrad and Amazon sell the Digital 2000 Ersa station which looks very nice but at nearly £300 is outside my budget. Anyone know if this iron can be used on any other station (Eg the slightly cheaper Ersa RDS 80) or should I sell it / give it away to someone who can use it? It's too nice a quality product to bin.

author: M. András
author_rank: Super Contributor
timestamp: November 01, 2012, 11:17:13 am
content: i think the icon stations can support it but dont quote me on that

author: madires
author_rank: Super Contributor
timestamp: November 01, 2012, 11:34:03 am
content: Quote from: M. András on November 01, 2012, 11:17:13 amThe Micro Tool works with DIGITAL 2000 and i-Con 2.
Trick Or Tat - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 01, 2012, 09:57:25 am
content: Eat If You Dare......http://www.dailymail.co.uk/news/article-2222557/Three-inch-blade-bag-childrens-Halloween-sweets-bought-Poundland.html

author: firewalker
author_rank: Super Contributor
timestamp: November 01, 2012, 10:18:44 am
content: Probably it was supposed to reach a prisoner.Alexander.

author: Sionyn
author_rank: Frequent Contributor
timestamp: November 01, 2012, 10:21:23 am
content: you'd think it get caught by the metal detectors which i hear on any food production line
Has anyone ever seen this DMM? - Page 1
Forum section: electronics / general

author: SoftwareSamurai
author_rank: Regular Contributor
timestamp: October 29, 2012, 01:59:49 pm
content: TheDM620 "Data Logging Meter"from Circuit Specialists.Does anyone actually have it and care to post a review?

author: Lightages
author_rank: Unknown
timestamp: October 29, 2012, 04:03:01 pm
content: I cannot say anything other than it appears to be another too good to be true meters. From the fuse replacement diagram it appears to be using small fuses instead of the big HRC ones. They could still be rated the the correct voltage but who knows.It certainly looks like an interesting meter otherwise. The lack of selection dial for function selection seems a bit of a pain. But if it meets its specifications and has reasonable safety it could be a great buy.

author: Lightages
author_rank: Unknown
timestamp: October 29, 2012, 04:11:33 pm
content: I just a quick search for DM620 and it looks like a cheap rebadge for many companies. harry66 on this forum mentions it in a bad light. I would avoid it.

author: rsjsouza
author_rank: Super Contributor
timestamp: October 29, 2012, 05:08:37 pm
content: It may seem a nuisance, but the User's Manual is a poor scan of a printed manual..I don't know any serious manufacturer that does not have the source documentation of their own product (thus generating a true PDF).Also, the page saysManufactured in Korea by SMTECH. That is probably the ODM.As mentioned by Lightages, if you are looking for a data logger and will never use this in high voltages that could work. However, In my opinion I would probably save a bit more and bet in something from a more reputable brand (EX540 from Extech, for example).

author: SoftwareSamurai
author_rank: Regular Contributor
timestamp: October 29, 2012, 06:11:03 pm
content: Thanks for the info guys.I was curious because that's the first time I'd seen a DMM with that type of display.

author: arekm
author_rank: Unknown
timestamp: October 29, 2012, 06:58:09 pm
content: http://www.electronics-lab.com/blog/?p=20264

author: T4P
author_rank: Super Contributor
timestamp: October 30, 2012, 04:03:44 pm
content: I assume you haven't see the Fluke 287/289?

author: SoftwareSamurai
author_rank: Regular Contributor
timestamp: October 30, 2012, 05:07:16 pm
content: Quote from: T4P on October 30, 2012, 04:03:44 pmYou assume correct! Nice DMM, but a bit pricey.

author: T4P
author_rank: Super Contributor
timestamp: October 31, 2012, 03:09:02 am
content: It's a fluke after all.Dot Matrix displays are easy to implement but they have ghosting delays of several years ... plus a contrast ratio of 0 (essentially)Check out the U125XB series from agilent, OLEDshttp://www.home.agilent.com/agilent/product.jspx?cc=SG&lc=eng&nid=-33167.920237&&cc=SG&lc=enghttp://www.home.agilent.com/en/pd-1766293-pn-U1252B/handheld-digital-multimeter-45-digit?nid=-34618.920238&cc=SG&lc=eng7seg versionMan why dont we have color IPS screens on meters ... Throw in touchscreen to configure the meter but not replace the buttons
w00t to Dr. Charvat and The Amp Hour! - Page 1
Forum section: electronics / general

author: slateraptor
author_rank: Frequent Contributor
timestamp: November 08, 2012, 04:45:37 am
content: Just got this month's IEEE Spectrum in the mail and guess what I immediately recognized on page 3?http://spectrum.ieee.org/video/geek-life/hands-on/video-build-a-coffeecan-radarhttp://spectrum.ieee.org/geek-life/hands-on/coffeecan-radarGuess what was discussed on last month's The Amp Hour:http://theamphour.com/the-amp-hour-115-watcher-of-wraithlike-walls/Coincidence? I think not.
YIG oscillator - Page 1
Forum section: electronics / general

author: DanP
author_rank: Newbie
timestamp: October 31, 2012, 07:04:17 pm
content: Hi all,I have 2 YIG oscillators with the following markings:Avantek - YIG Tuned OscillatorModel Y084-1679Freq: I - 404672/AI think they originally came from some older Spectrum Analyzer dis-assembly, but I do not know what model.Anyone can help me with their datasheet or some info on them ?Thanks
HP 8656B or FLUKE 6060B Signal Generator. Opinions Please - Page 1
Forum section: electronics / general

author: prenato
author_rank: Regular Contributor
timestamp: October 30, 2012, 04:40:26 pm
content: I'm looking for a RF signal generator in the 1GHz range and two units stand-out in my search so far: HP 8656B or FLUKE 6060B Signal Generator. Does anyone have experience with either of them? Any recommendations or things to look out for would be appreciated.

author: PA0PBZ
author_rank: Super Contributor
timestamp: October 30, 2012, 06:16:39 pm
content: Not sure what your requirements are, but both the models you mentioned are huge. Did you look at for instance the Marconi 2022?

author: prenato
author_rank: Regular Contributor
timestamp: October 30, 2012, 08:56:17 pm
content: Quote from: PA0PBZ on October 30, 2012, 06:16:39 pmThanks PA0PBZ. I hadn't considered the Marconi 2022 but looks interesting too. It does seem a bit more expensive (about twice the price of the others judging from what I see on ebay). I do realize these units are huge. We have one (slightly higher end) hp unit at works with a label "2-person lift".... that ought to tell you something:)
Test & measurement running show - Page 1
Forum section: electronics / general

author: singera
author_rank: Contributor
timestamp: October 30, 2012, 08:26:28 pm
content: http://new-techevents.com/index.php/events/testing-2012its in israel 20 min of driving from the airport and from tel aviv, I think they will have agilent DSO for good price.
copper solder? - Page 1
Forum section: electronics / general

author: merser
author_rank: Contributor
timestamp: October 29, 2012, 08:39:06 am
content: Here's a story I saw and thought of eevblog forum. What do you think? Cool in one way but maybe not so good for reworking.http://phys.org/news/2012-10-scientists-revolutionary-nanotechnology-copper-solder.html

author: G7PSK
author_rank: Super Contributor
timestamp: October 29, 2012, 03:32:16 pm
content: Once fused you have effectively welded the component to the board. it will take a blowtorch to remove a component afterwards.No user serviceable parts inside will take on a new meaning. I wonder how they are getting over the problem of most powder metal fusing of needing pressure as well as heat that could be why they are having trouble with brittleness as there is no forging action with plain soldering operations. Perhaps the soldering irons of the future will have an ultrasonic vibrator in them in order to consolidate the copper paste solder at the point of melting.

author: Time
author_rank: Frequent Contributor
timestamp: October 29, 2012, 07:48:31 pm
content: Interesting. I think that stuff would be great in repetitive pulsed power applications.

author: sacherjj
author_rank: Frequent Contributor
timestamp: October 29, 2012, 08:22:38 pm
content: It would be more reliable than current high temp solder when making thermocouples and such for doing things that need above solder temps, like profiling reflow ovens and such.

author: david77
author_rank: Frequent Contributor
timestamp: October 30, 2012, 02:35:42 pm
content: Dr. Alfred Zinn - Good name for someone working on new soldering techniques. "Zinn" is German for "tin".
Ghetto probles - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: October 30, 2012, 04:39:03 am
content: What's their CAT rating?

author: SeanB
author_rank: Super Contributor
timestamp: October 30, 2012, 04:51:56 am
content: On the plus side though - Made in the USA!With Korean parts.

author: notsob
author_rank: Frequent Contributor
timestamp: October 30, 2012, 05:18:39 am
content: When the flash of light magically appears, hopefully we will get pics of the 'BIC-BANG !'

author: McMonster
author_rank: Frequent Contributor
timestamp: October 30, 2012, 05:48:08 am
content: Quote from: Psi on October 30, 2012, 04:39:03 amUnfortunately, ancient Romans had no concept of the number 0 and in turn no representation in their numerals.

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 30, 2012, 05:51:51 am
content: you should mention that the cable is audiophool class rating way better than chineseyou'll never suspect you'll might be surprised what'll come out of a ghetto!

author: Unknown
author_rank: Unknown
timestamp: October 30, 2012, 06:06:59 am
content: Quote from: Psi on October 30, 2012, 04:39:03 am0.7 Fine !!

author: Mediarocker
author_rank: Contributor
timestamp: October 30, 2012, 07:14:01 am
content: Quote from: Uncle Vernon on October 30, 2012, 06:06:59 amThis one had me chuckle

author: BalticLab
author_rank: Regular Contributor
timestamp: October 30, 2012, 02:39:21 pm
content: On a cold and gray Chicago morning a pair of cheaply made probes were born in the ghetto...

author: aluck
author_rank: Regular Contributor
timestamp: October 30, 2012, 02:45:42 pm
content: WOW, what a great idea for kickstarter!Sadly, the Chinese will copy it the next day.

author: robrenz
author_rank: Super Contributor
timestamp: October 30, 2012, 02:51:26 pm
content: Those are already available from the Bic division of Pomona of Fluke of Danaher.

author: T4P
author_rank: Super Contributor
timestamp: October 30, 2012, 04:17:57 pm
content: The funny thing is ... there are such probes ... ultra crap analog meters from china come with such exposed probes ...http://dx.com/p/mf-110a-mini-handheld-multimeter-80491This is just one of thebetterones, i have really seen more atrocious probes that resembles a BIC pen ...

author: nanofrog
author_rank: Super Contributor
timestamp: October 30, 2012, 07:16:49 pm
content: Quote from: robrenz on October 30, 2012, 02:51:26 pmGot a good laugh out of this.

author: aluck
author_rank: Regular Contributor
timestamp: October 31, 2012, 04:25:52 am
content: Quote from: robrenz on October 30, 2012, 02:51:26 pmThe latter is not a very popular company in Russia. It's name sounds just right about Russian F@#KTHAT.
Great service! - Page 1
Forum section: electronics / general

author: ttp
author_rank: Regular Contributor
timestamp: October 30, 2012, 03:41:01 am
content: Few days ago I bought a thing or two from voltagestandard.com online shop. Couple of days later got an email from Paypal with "refund" in the subject, my first thought was: Shit, stuff I want is out of stock! Next comes email from Doug which I read in more detail, it says:I refunded $4.00USD to your PayPal account for excess postage/handling that you paid- my web store tends to over estimate these costs.Regards,Doug MaloneWow, I call this a great service! Not many would bother.Any other good experiences out there?

author: TriodeTiger
author_rank: Regular Contributor
timestamp: October 30, 2012, 04:16:14 am
content: The converse; on an online shopping cart the designer/organisation forgot to change shipping costs for other countries (this was a UK company primarily serving UK customers.)After realising shipping to Canada had cost no more than domestically, I contacted the nice lady handling the orders and she kindly said "Oh don't worry! It is only a pound or two extra." and I was thanked for my concern.Alexander.
Demodulator Probe - Page 1
Forum section: electronics / general

author: prenato
author_rank: Regular Contributor
timestamp: October 26, 2012, 10:34:17 pm
content: I saw a youtube video where the author used a "demodulator probe" (I gather these are sometimes also called "RF detector probes") along with a sweep generator. This was to do a sort of network analyzer setup where the sweep generator produces a sine wave spanning a given frequency range (sweep) driving the DUT, and the "demodulator probe" at the output of the DUT drives the Y axis of the scope (X-axis driven by the sweep "ramp').I'm interested in building a setup like this in my lab (poor man's network analyzer of sorts). I found little information online on this type of probes. Does anyone on this forum have experience with these and can make a recommendation? I'm interested in something that can go up to 1GHz or maybe a little lower. Are there better ways of doing this short of buying a "proper" network analyzer (or spectrum analyzer with Tracking Generator)?Thanks in advance.

author: w2aew
author_rank: Super Contributor
timestamp: October 27, 2012, 02:29:42 am
content: These probes were a lot more popular decades ago when wide BW scopes were few and far between. Many manufacturers made them (Tek, HP, B&K, Eico, Heathket, etc). There are a lot of schematics of RF Dectectors/Demodulators available online. For the most part, frequency range and response flatness will be dominated by component selection and layout/construction details. You may find some nice detailed plans from amateur radio hobbyists online.

author: Unknown
author_rank: Unknown
timestamp: October 27, 2012, 12:38:30 pm
content: Tricky part may be calibration/adjustment for flatness. You would either need a flat source or another wide-band detector, typically a power meter, spectrum analyzer or network analyzer. Usually these instructions end with 'now connect your 1 GHz leveled signal generator and calibrated power meter and adjust for maximum flatness across the band'. Which defeats the point of DIYing one in the first place. I wonder if there are clever tricks to skip this.

author: robrenz
author_rank: Super Contributor
timestamp: October 27, 2012, 02:14:23 pm
content: Some applications like looking at the pulse timing of radio control (model aircraft,heli,car) transmitters on 2.4Mhz carrier might not need much precision. You just want to see the timing on a normal BW scope. So a very crude uncalibrated breadboard demod might be all you need.

author: prenato
author_rank: Regular Contributor
timestamp: October 30, 2012, 02:23:39 am
content: Thanks for all the responses! I ended-up buying this probe from eBay:http://www.ebay.com/itm/Demodulator-Probe-for-Tektronix-HP-and-all-BNC-oscilloscopes-/261120221626?pt=LH_DefaultDomain_0&hash=item3ccbfa61baJust received it today and so far seems to work ok. Pretty linear response down to about 0.3V or so. Now I'm keeping an eye on eBay for a good sweep generator...
have experience with an EIP 545A microwave counter? - Page 1
Forum section: electronics / general

author: slburris
author_rank: Frequent Contributor
timestamp: October 28, 2012, 03:32:41 pm
content: One has recently come into my possession via eBay. No options installed.The manual makes reference to option 14, which increases the gate timeto 10 seconds to increase the resolution. This doesn't appear to be anadd-on board that my counter is missing. Was this an order time optionthat's set in software? Or a jumper setting? Maybe a bit in the EEPROM,U10?I've tested the first two bands and they seem to work fine. The thirdband is 1Ghz to 18Ghz, and I don't (yet) have a 1Ghz or greater signalsource to test with.Seems like a nice counter. It's a bit noisy with the cooling fan -- gotta keepthat ECL logic from overheating! For 1Ghz or less, I'd probably stick tomy Racal/Dana 1992 counter, but above that this counter has higher resolution,and a much higher top end frequency (18 Ghz).Scott

author: PA0PBZ
author_rank: Super Contributor
timestamp: October 28, 2012, 07:25:42 pm
content: Maybe you can find something in the service manual?http://www.ko4bb.com/Manuals/EIP_PhaseMatrix/EIP_545/EIP_545A_Service_Manual.pdf

author: slburris
author_rank: Frequent Contributor
timestamp: October 28, 2012, 07:52:08 pm
content: I've read the service manual -- that's how I found out about option 14 :-)Scott
M2M IoT - Page 1
Forum section: electronics / general

author: Keith
author_rank: Contributor
timestamp: October 28, 2012, 11:59:49 am
content: Just curious. Was wondering if any of the hobby or pro folks in this forum are involved with, interested in, following the emerging Machine to Machine)M2M and/or IoT(internet of Things) activities. I find it interesting(i'm probably slow on the uptake here) and fascinating. I was looking at doing some home automation and monitoring projects for fun. I discovered a site called exosite. The site allows bi-directional dataflow to/from your sensors and utilize a set of monitoring dashboards that are ready to go. I find this fascinating and i was just curious about other perspectives on where this is all going. Regards....

author: Unknown
author_rank: Unknown
timestamp: October 28, 2012, 07:42:23 pm
content: I like the idea of machine to cloud stuff. It's would't be that hard though to create your own setup if you wanted.
T-962 - Page 1
Forum section: electronics / general

author: thenothed
author_rank: Newbie
timestamp: October 25, 2012, 02:39:15 am
content: Has anyone done any reflow with a T-962/ is there a better option/dollar / what kind of density does it max?

author: Spikee
author_rank: Frequent Contributor
timestamp: October 26, 2012, 10:23:16 pm
content: They seem to have some problems what i have read about it.It uses IR elements which heat up certain components to much and others not enough. It also does not have an convection fan so there are a few cold spots in the oven. The best thing you can do is build yourself one.Get and mini oven with ~100W /L and mod an high temperature (microwave) fan in it to provide convection. The more expensive option would be an microwave whit convection oven and an oven wattage of ~100w per liter.

author: peter.mitchell
author_rank: Super Contributor
timestamp: October 27, 2012, 02:45:28 am
content: Hmmm... toaster oven mod time anyone?

author: T4P
author_rank: Super Contributor
timestamp: October 28, 2012, 05:40:50 pm
content: The ovens with convection fans don't come cheap, or they only have switchable top or bottom heaters as far as i've seenBut it is a HELL lot cheaper than the T962 but you just have to do a few mods left and right (Simple PID controller, the ones you see on industrial equipment)
CA Police' need'  want new internet surveillance tools, say chiefs - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: October 28, 2012, 02:29:55 pm
content: Police agencies in Canada want to have better tools to do online surveillance. Bill C-30 was to include new legislation (specifically Section 34) that would give police access to information without a warrant. This can contain your name, your IP address, and your mobile phone number. This, of course, creates all sorts of issues with privacy online. The police themselves say they have concerns with Section 34. Apparently, the way it is worded, it is not just police that can request the information, but any government agent. Would you trust the government with this kind of power?"These ass-clowns just don't get it that while laws that enable them to use new technologies are reasonable, laws that bypass established due process aren't. I don't care that computers allow much more efficient investi-trolling. You still get a warrant, or you don't get the data, in my world. Anything else - C-30 or not - is illegal to me and puts the government and police in an adversarial position relative to their constituents.Either fight it now or explain to your children in a decade or two why you did not prevent a surveillance state, where there is no free speech and no tolerated dissent.are the lessons from 1940's been lost ?http://www.cbc.ca/news/canada/british-columbia/story/2012/10/26/bc-jim-chu-internet-surveillance.html
My Second Video Blog Entry - Vehicle Tracking Unit Teardown - Page 1
Forum section: electronics / general

author: kolbep
author_rank: Frequent Contributor
timestamp: October 28, 2012, 04:46:41 am
content: My Second Electronics Blog :Vechile Tracking Unit (And how to get one for free from any car)Tracking Unit Teardown. Enjoy, and please subscribe on Youtube to see my future videos.Let me know what you think (here, or in YT Comments)Peter

author: SeanB
author_rank: Super Contributor
timestamp: October 28, 2012, 05:44:57 am
content: Or look at a tree in the township and you find them hanging there.......

author: poptones
author_rank: Frequent Contributor
timestamp: October 28, 2012, 05:52:48 am
content: So when did they start putting these in "any" car? My 2005 Magnum did not have GPS, but it allegedly had one of these in it?

author: SeanB
author_rank: Super Contributor
timestamp: October 28, 2012, 06:00:50 am
content: 1990 or so. Very popular to "Get our own back" and unfortunately you have an issue with the locations of the unit being known to "The community of interest" from " Collusion" between "Certain members" of both parties.
LED "Solar Power" Torch - Page 1
Forum section: electronics / general

author: tom66
author_rank: Super Contributor
timestamp: October 27, 2012, 09:30:39 pm
content: I saw this at the local 99p shop, could hardly refuse, after all, looks like a decent solar cell and LEDs for 99p.Got it home and of course that was when I noticed something didn't look quite right on the solar cell, there was a little chunk of it missing out of the top. The torch still worked. I decided to crack it open.I found that the solar cell was indeed missing a chunk (see photo), but even worse than that, there appeared to be no connection between it and the torch electronics. Inside the torch, I found a single CR2016 non-rechargeable lithium cell, and three LEDs.The solar cell appears to be a real cell, but probably a rejected/failed one due to the missing chunk.I suppose, you cannot expect much for 99p!

author: senso
author_rank: Frequent Contributor
timestamp: October 27, 2012, 09:57:16 pm
content: Looks like recicled leds and the button sure look used as hell, and the solar cell probably was a larger panel..

author: tom66
author_rank: Super Contributor
timestamp: October 27, 2012, 10:12:49 pm
content: The panel is discrete. The model code is QFSolar 3722-9L. The 3722 looks like dimensions - the solar cell measures approx 40mm x 20mm which would be very close to 37mm x 22mm. So I think it's a genuine small cell, but broken/reject. The think is covered in flux residue, and the LEDs do look dodgy too.
satanic hand sign - Page 1
Forum section: electronics / general

author: elektronicks
author_rank: Contributor
timestamp: October 27, 2012, 06:54:15 am
content: what's with the satanic hand sign dave ?http://www.eevblog.com/images/Dave555.jpg

author: ftransform
author_rank: Frequent Contributor
timestamp: October 27, 2012, 07:07:24 am
content: lol I honestly thought that was some kind of gangsta pose at first.clearly he is involved with disorganized crime, fensing stolen test equipment

author: Tuomas
author_rank: Contributor
timestamp: October 27, 2012, 08:11:56 am
content: Dave has his thumbs pointing out, so that's not technically the "satanic hand sign".Dave doesn't really seem like a member of the occult anyways. That British guy who spends too much of his time in that darkly lit shed, mikeselectricstuff, on the other hand...

author: EEVblog
author_rank: Unknown
timestamp: October 27, 2012, 08:43:50 am
content: A poorly executed "hang loose"?Dave.

author: G7PSK
author_rank: Super Contributor
timestamp: October 27, 2012, 09:16:38 am
content: It's not the devilish hand sign it's the demon grin, he must have blown something up off picture.

author: poptones
author_rank: Frequent Contributor
timestamp: October 27, 2012, 09:40:27 am
content: That's not satanic. It's floppy the clown!https://www.youtube.com/qlQ1HPmxYPs

author: free_electron
author_rank: Super Contributor
timestamp: October 27, 2012, 10:31:53 am
content: Floppy the banjo clown! Blue man group is funnny. Look up 'twinky'...

author: ftransform
author_rank: Frequent Contributor
timestamp: October 27, 2012, 06:27:12 pm
content: for some reason I feel like mike belongs at a heavy metal concert

author: LEECH666
author_rank: Frequent Contributor
timestamp: October 27, 2012, 06:38:23 pm
content: http://en.wikipedia.org/wiki/Sign_of_the_hornsNot quite ... wrong direction.
who doesnt have mouse middle button and scroll wheel? - Page 1
Forum section: electronics / general

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 27, 2012, 12:01:17 pm
content: i scrolled the wheel with hope that the view will zoom out so i can see everything cropped out. no its scrolled down! duh! i'm in eevblog, not diptrace

author: deephaven
author_rank: Frequent Contributor
timestamp: October 27, 2012, 12:12:47 pm
content: CTRL Scroll Wheel works for me

author: krish2487
author_rank: Frequent Contributor
timestamp: October 27, 2012, 12:48:34 pm
content: I think thats more to do with your browser rather than the website....oryou are spending waaaay too much time on EDA packages!:-)

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 27, 2012, 01:20:22 pm
content: Quote from: deephaven on October 27, 2012, 12:12:47 pmduh i feel like newbie! i didnt know that exist. though i remember one time my browser's text got so tiny for no reason, maybe i accidentally pressed this combo. took me some time to find the menu to correct it.Quote from: krish2487 on October 27, 2012, 12:48:34 pmi dont count the hours but its been three days, i either sleep or diptracing

author: robrenz
author_rank: Super Contributor
timestamp: October 27, 2012, 02:32:36 pm
content: Quote from: Mechatrommer on October 27, 2012, 01:20:22 pmCTRL 0 restores the default. I had the same problem and asked the forum for help.CTRL scroll wheel is nice when people post oversize pictures, you can resize to see the whole picture width then CTRL 0 to get back to normal.

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 27, 2012, 04:33:39 pm
content: even better! now i wont care if its IE or diptrace, i can do the same, i only need to remember the CTRL key. thanks!

author: free_electron
author_rank: Super Contributor
timestamp: October 27, 2012, 04:38:06 pm
content: many packages also react ot shift scroll and alt-scroll ... illustrator uses alt scroll to scroll left right . ctrl scroll is zoom in out and i forgot wat shift scroll does ...

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 27, 2012, 04:57:51 pm
content: Quote from: free_electron on October 27, 2012, 04:38:06 pmbwahahaha!

author: free_electron
author_rank: Super Contributor
timestamp: October 27, 2012, 07:52:58 pm
content: @#$%^ chicklet keyboard

author: SeanB
author_rank: Super Contributor
timestamp: October 27, 2012, 08:27:24 pm
content: Fat fingers!

author: Mechatrommer
author_rank: Super Contributor
timestamp: October 27, 2012, 09:11:07 pm
content: i know that its quick typing but the problem when you dont check what you typed before post or watching videos at the same time.
Songle Relay - Page 1
Forum section: electronics / general

author: itdontgo
author_rank: Regular Contributor
timestamp: October 24, 2012, 05:21:38 am
content: Has anyone ever used a Songle relay? We currently use a G5LA but these are their much cheaper Chinese counterpart. Are they any good?

author: SeanB
author_rank: Super Contributor
timestamp: October 24, 2012, 11:36:24 am
content: Could be a fair relay, what are the rated specs and what is your use case. Pics of the relay stripped down as well will show if there is economy in manufacture.

author: peter.mitchell
author_rank: Super Contributor
timestamp: October 24, 2012, 02:36:44 pm
content: Not going to lie, when i saw the thread title, i thought it was a typo for single relay.

author: FenderBender
author_rank: Super Contributor
timestamp: October 25, 2012, 02:03:32 am
content: If seen "Songle" on a lot of eBay electronics with relays. I wonder too...

author: itdontgo
author_rank: Regular Contributor
timestamp: October 25, 2012, 07:39:07 pm
content: Quote from: peter.mitchell on October 24, 2012, 02:36:44 pmIt probably was somewhere down the line in China! I'm going to stick to the G5L for now as I'm only saving £100 on this batch and that's the cost of twp failed boards. Maybe when we're making a few thousand.

author: mariush
author_rank: Super Contributor
timestamp: October 26, 2012, 05:53:54 am
content: The Tenma linear power supply I bought from Farnell a few weeks ago uses Songle relays... pictures in the thread:https://www.eevblog.com/forum/product-reviews-photos-and-discussion/tenma-72-8695-2-x-32v-3a-5v-2a-mini-review-teardown/?topicseen
Workshop  is expanding - Page 1
Forum section: electronics / general

author: M0BSW
author_rank: Frequent Contributor
timestamp: October 25, 2012, 06:27:37 pm
content: My workshop radio ham shack is expanding , the latest piece is the Farnell TM2 it measures from 1 Mv to 300v, took it to friends who do proffesional calibrations, and it didn't need calibrating on any range, it's got to be and old piece of kit, I was advise that before using in the cold days I should let it sit there switched on for around 15 minutes in the house, spot on piece of gear))), think I'm going to back light the meter, as I'm doing with all my gear. Tarty gear.Paul
Camera Techinque Captures New View of Space And Time - Page 1
Forum section: electronics / general

author: Sionyn
author_rank: Frequent Contributor
timestamp: October 29, 2012, 09:22:15 pm
content: http://vimeo.com/9339256#

author: nixxon
author_rank: Frequent Contributor
timestamp: October 29, 2012, 10:19:02 pm
content: Some variant of slit-scan photography that was discovered almost 100 years ago?http://en.wikipedia.org/wiki/Slit-scan_photography

author: eliocor
author_rank: Unknown
timestamp: October 29, 2012, 10:58:20 pm
content: Even if different (but always related to space/time) I think some videos made byZbigniew Rybczy?skican interest you, especially the one calledTHE FOURTH DIMENSIONThe Fourth Dimension(1988).Unfortunately the excerpt shown on Vimeo has not the original music made by Michael Urbaniak but some else music!To my knowledge you will be able to find this almost impossible to find film (at least here in Italy) on eMule in complete form.Warning!The Fourth Dimensioncontains some artistic nudes (M/F): you were advised!

author: Unknown
author_rank: Unknown
timestamp: October 30, 2012, 12:03:53 pm
content: A very nice camera/processing technique, not sure about the great babble that goes with it (~17min) ; but I guess they have to sell it for lots money to the art suckers! ;-)
Boing microwave missile - Page 1
Forum section: electronics / general

author: Write_to_Smokegenerator
author_rank: Regular Contributor
timestamp: October 24, 2012, 12:25:22 pm
content: http://www.engadget.com/2012/10/23/boeing-tests-microwave-missile-that-knocks-out-electronics/Well, I don't like where this is going....(no more words needed)What are your thoughts about this?

author: madires
author_rank: Super Contributor
timestamp: October 24, 2012, 01:04:29 pm
content: No surprise at all. Let's call it the ultimate EMI test :-) I think that those microwave missiles won't have much impact on most military stuff since it's hardened against EMI from nuclear weapons. Looks more like interrupting communications or rendering some unprotected equipment useless.

author: M0BSW
author_rank: Frequent Contributor
timestamp: October 24, 2012, 02:35:49 pm
content: And this is just the stuff we are let to know about, what about all the hi tech stuff we don't know about, which I'm sure they have

author: SeanB
author_rank: Super Contributor
timestamp: October 24, 2012, 03:48:22 pm
content: So they took an old and grumpy moding microwave magnetron and have added a very noisy power supply and an antenna to it. This will stop all WiFi in range quite well. If t has enough energy to kill electronics it has enough energy to kill people. Would be cheaper and easier to replace the complex warhead with HE and aim it..........

author: SeanB
author_rank: Super Contributor
timestamp: October 24, 2012, 07:00:32 pm
content: Reply to that missile is a bog standard HARM closing in. That is why AWACs and ECM emitters stay far away from the action unless they only turn it on to active mode for confusion of incoming threats.

author: DavidDLC
author_rank: Frequent Contributor
timestamp: October 24, 2012, 08:31:00 pm
content: Time for the redundant systems, they turn one building off, I have the backup far away and hidden from them.

author: Sionyn
author_rank: Frequent Contributor
timestamp: October 25, 2012, 09:15:28 am
content: handy to implement to get rid of excessive cctv cameras

author: Psi
author_rank: Super Contributor
timestamp: October 25, 2012, 10:45:23 am
content: If you watch the video carefully when they show a room for of PC's getting killed you can see one of the computers gets so confused it ejects the cdrom drive while the disk is still spinning

author: Zero999
author_rank: Super Contributor
timestamp: October 25, 2012, 11:50:38 am
content: Quote from: SeanB on October 24, 2012, 03:48:22 pmIt takes far more energy to kill a person than to kill electronics. The 1MW microwave pulse only has to last for a microsecond or so to zap an IC but it would take much longer to kill a human.

author: Psi
author_rank: Super Contributor
timestamp: October 25, 2012, 12:35:42 pm
content: Quote from: Hero999 on October 25, 2012, 11:50:38 amYeah, If the cpu is 3ghz one clock cycle lasts 333 pico seconds.Of course the microwave pulse is repeating, but once or twice a second would be more than enough.
Time to get down to the course work - Page 1
Forum section: electronics / general

author: M0BSW
author_rank: Frequent Contributor
timestamp: October 24, 2012, 07:44:36 pm
content: OK , got to get down to the course work now, maths the theory, & physics, I may survive all this so I can qualifications to repair TV's which is my aim, loving it. at 58 I do have to read things 2/3 times.

author: tom66
author_rank: Super Contributor
timestamp: October 24, 2012, 07:46:36 pm
content: You need qualifications to repair TVs?I've done 35 as a hobby

author: M0BSW
author_rank: Frequent Contributor
timestamp: October 24, 2012, 07:48:11 pm
content: Yes if you want to work in a TV repair shop ,and get the good money, health and safety,I'm told by a friend of mine who owns a TV repair shop, I thought you would just go in and pick it up, the old days way, now their scared about everything where the public are concerned, quite enjoying it though, and I do go there weekends, see & experience it for real.

author: M0BSW
author_rank: Frequent Contributor
timestamp: October 24, 2012, 07:58:55 pm
content: I will add that my friend has kindly paid 50% of the course and is paying for the exams, he's more confident than me, at the moment

author: tom66
author_rank: Super Contributor
timestamp: October 24, 2012, 08:15:08 pm
content: What is the course in particular?

author: M0BSW
author_rank: Frequent Contributor
timestamp: October 25, 2012, 03:38:48 am
content: TV Repair certificate & general Electronics run by local adult education collegeInterview / Skills Assessment YesWhat will I need?4 or more GCSEs at A*-C grade; or BTEC First Diploma at merit grade; or an NVQ2 (before starting this course you will need GCSE Maths at A*-C grade)You will also need to attend an interview to make sure the course is right for you. If you have other qualifications and/or relevant experience you will be fully considered and may still be able to study for the course.What is covered?This course is a well-balanced mix of practical and academic work with access to well-equipped electronics and computer laboratories.Subjects covered include:· Mechanical principles· Electrical and electronic principles· Electronics· Micro-electronics· Software design and development· Electronic circuit manufacture· Analogue electronics· Digital electronics. Tv reair. Radio repair· Micro-controllers· Programmable controllers· Maths for technicians· Further maths for techniciansOptional modules are chosen by the College to reflect the needs of local employers.
What Is The Cause Of Vacuum Cleaner "Hissing" After 6 Months? - Page 1
Forum section: electronics / general

author: Boris_yo
author_rank: Frequent Contributor
timestamp: October 24, 2012, 11:07:51 am
content: Half year ago I have purchased UFESA cyclone technology vacuum cleaner and now it makes that hissing sound after several minutes being turned off and on in my every cleaning routine:It doesn't hiss right away when switching first time after week of not using it but after after a ranging from several seconds to a couple of minutes it starts hissing. Through cleaning routine it almost starts hissing immediately after being turned off and then on as I do short breaks in cleaning. This had me thinking of what could be causing hissing and I think that it has to do with deformed material as vacuum cleaner is still warm throughout cleaning routine. I have warranty on this product but before I drag it to technical service center I want to be sure that this hissing sound is a problem per se and gives a good reason to technical staff to take care of it.

author: SeanB
author_rank: Super Contributor
timestamp: October 24, 2012, 11:38:59 am
content: Replace bag time, or the seal of the cover has popped loose. Check as well the inlet to the pump for a small filter that is blocked. Check hose for obstructions.Anything else requires opening it and checking the seals around the motor assembly and the relief valve.

author: Boris_yo
author_rank: Frequent Contributor
timestamp: October 24, 2012, 11:55:31 am
content: Thank youSeanB.This vacuum cleaner does not have bags, it has unique HEPA filter within canister where all the dirt and dust are kept. The hose is fine but when I ran vacuum cleaner without canister, the hissing no longer took place. I don't understand how canister be problem because it is in good condition and did not undertake abuse. You can see the canister in picture that I have attached below.

author: SeanB
author_rank: Super Contributor
timestamp: October 24, 2012, 12:02:11 pm
content: Wash it, and replace the fine paper filter in the top section. It is probably blocked, and bypassing on the seals.

author: G7PSK
author_rank: Super Contributor
timestamp: October 24, 2012, 05:04:19 pm
content: The pressure relief valve is opening, my Dyson does the same when the hepa filter becomes clogged, something it does quite easily if you vacuum up fine dust like flour or ashes.

author: RCMR
author_rank: Frequent Contributor
timestamp: October 24, 2012, 08:21:35 pm
content: Check for snakes!The wife bought a bagless vacuum cleaner a while ago and we've gone back to bag-based ones.Too much hassle cleaning the damned filter all the time. With a bagged cleaner you just replace the filter and the bag in one easy motion. Quick, simple and not really that expensive.My time is too valuable to spend cleaning filters!
Ceefax Service to end after 38 years on BBC - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: October 23, 2012, 02:46:10 pm
content: http://www.bbc.co.uk/news/uk-20032882Quote

author: steve30
author_rank: Frequent Contributor
timestamp: October 23, 2012, 04:58:35 pm
content: This is a shame. I miss Ceefax.I was wondering what would happen to the 'Pages from Ceefax' programme that I tend to watch early in the morning, and according to my 7 day electronic programme guide, it looks like it has been replaced by a 'This is BBC Two'.

author: SeanB
author_rank: Super Contributor
timestamp: October 23, 2012, 05:41:33 pm
content: Funny thing is the digital STB's are quite capable of inserting the data into the video signal they make for composite video, and many do this by default. I think the only reason this is being turned off is because there is nobody watching it any more. When the BBC went to 625 lines from 405 they kept old transmitters running for decades. According to Television at the end when they finally turned them off ( no longer had spare Germanium transistors to keep the converters running) they estimated there were around 25 viewers left that watched off the air.

author: steve30
author_rank: Frequent Contributor
timestamp: October 23, 2012, 07:11:44 pm
content: I think some digital services (Sky digital maybe?) did broadcast a kind of teletext which found its way into the composite video signal. Never used that though.Much as I will miss the analogue service, I suppose it is time to move on. After all, our digital service has been around since the late 1990s and is getting rather old :p.

author: baljemmett
author_rank: Unknown
timestamp: October 23, 2012, 10:22:46 pm
content: Quote from: steve30 on October 23, 2012, 04:58:35 pmYes, the last Ceefax-in-vision programme went out at something like 4.30 on Sunday morning. Maybe it was Monday morning. I forgot to set the recorder, because I am an idiot.