hybridfree/eevblog-posts huggingface dataset:
MORE VINTAGE TEARDOWNS! :) - Page 1
Forum section: electronics / general

author: valvedoctor
author_rank: Contributor
timestamp: August 28, 2013, 09:01:23 pm
content: My suggestion is for you to do more vintage tear downs!I realize most of your audience are into more modern technology, but I think some tube/valve test equipment from HP, or something like that would be of interest, show these silicon fan-boys what made the world tick 60 years ago and beyond. Anything vintage for that matter is of interest to me! Communications receivers from the war-era, etc. The list goes on and on.BTW, I've been a viewer since the blog began and I love all the episodes, but the tear-downs and vintage stuff really gets me going.

author: c4757p
author_rank: Super Contributor
timestamp: August 28, 2013, 09:16:26 pm
content: Eh... forget all this electronics shit, I want to see a teardown of a horse! Let's see what made the world tick 200 years ago.

author: Unknown
author_rank: Unknown
timestamp: August 28, 2013, 10:35:37 pm
content: I think Vincent (free_electron) would gladly do teardowns of vintage tube equipment. He would go as far as disassembling all the tubes so you can see what's inside. With a hammer. No guarantees about it working after putting it back together.

author: kizzap
author_rank: Unknown
timestamp: August 29, 2013, 12:00:26 am
content: Quote from: c4757p on August 28, 2013, 09:16:26 pmscrew the horse, I want a molecule teardown, Let's see what made everything we are made of.-kizzap

author: SeanB
author_rank: Super Contributor
timestamp: August 29, 2013, 04:31:36 am
content: How about a slightly vintage TV set? It even came with windows in it, in 1995.http://flic.kr/s/aHsjHCgpB9

author: free_electron
author_rank: Super Contributor
timestamp: August 29, 2013, 01:52:42 pm
content: Quote from: alm on August 28, 2013, 10:35:37 pmYES ! HAMMERTIME !I'd go so far as to start with the tubes. The chassis and the rest would be vigorously attacked with a range of preciision tools going from a small ball peen hammer to a 60 pound sledgehammer.For larger equipment i may have to invest in pneumatic hammers or even one of those machines that are used to make very compact cars...Where's my box of hammers ?

author: free_electron
author_rank: Super Contributor
timestamp: August 29, 2013, 01:54:22 pm
content: Quote from: kizzap on August 29, 2013, 12:00:26 amPff ,wannabe.Do like the guys at CERN .. Their large hadron collider tears down matter on a whole new scale .... lets toss old vacuum tube stuff in the LHC and really tear it apart ....

author: ElectroIrradiator
author_rank: Frequent Contributor
timestamp: August 29, 2013, 04:16:46 pm
content: And now for something completely different: I will just leavethis little mind benderhere, for absolutely no good yet completely OT reasons.

author: mxbeanie
author_rank: Newbie
timestamp: October 07, 2013, 02:32:01 pm
content: An old tube T.V. set teardown would be sweet, or maybe a vacuum tube amplifier or radio. They are kinda basic, but it would be cool too see how crusty the power supply caps are in an old tube amp.
vBlog idea - SMD PCB assembly - Page 1
Forum section: electronics / general

author: vk2hmc
author_rank: Contributor
timestamp: October 09, 2013, 08:08:56 am
content: I'd like to see a SMD production line in action some day.

author: dr_p
author_rank: Frequent Contributor
timestamp: October 09, 2013, 08:22:34 am
content: meanwhile, in 2009:

author: vsq
author_rank: Contributor
timestamp: October 09, 2013, 08:57:24 am
content: And...

author: vk2hmc
author_rank: Contributor
timestamp: October 09, 2013, 12:20:38 pm
content: Dave Did, we even saw the 'backside' - thanks Dave :pWell as a newbie (poor excuse I knowI can change my request I hope..I accidentally went to the wrong site twice in an industrial park in Singapore.I got out on 5th floor on the first building and walked into a Seagate disk drive assembly plant.The hands on the lines freaked out and unfortunately security arrived and escorted us out...The next building ("C", I think it waswas the right building but the wrong floor.Upon leaving the lift at the 5th floor, there was a perspex screen around the exit of the lift for viewing.Hundreds of desktop computers were being made an hour with no people in sight.Everything was robotic. From placing the CPU, heat sink and ram through to packing the computer and loading the pallets.I do hope you can understand the airiness experienced. not a person in sight - just all these robots going berserk!It was very surreal, and I remember I stayed there even after the rest of the my party left, absorbing the ambiance.Eventually I felt guilty being late for the first class of a week training ): and left.Fortunately the trainer understoodThe sound of robot assemblies have a musical sound, perhaps a music video based on automated production?--marki
Lab update tour? - Page 1
Forum section: electronics / general

author: wblackledg
author_rank: Regular Contributor
timestamp: October 02, 2013, 06:33:09 pm
content: Dave,Now that things have settled down in your new digs, I was wondering if you could give us a tour of the new facilities including all the new toys you have? I realize it might force an all day clean up before hand but spring cleaning is always a good thing..Here is the original thread.https://www.eevblog.com/forum/blog/eev-lab-update/

author: mxbeanie
author_rank: Newbie
timestamp: October 07, 2013, 02:28:43 pm
content: I second that!
Multimeter input protection redux - Page 1
Forum section: electronics / general

author: Marco
author_rank: Super Contributor
timestamp: October 06, 2013, 12:00:15 pm
content: As I said in the #373 comment thread the original video left out a fair bit of the input protection circuitry, among which the use by Fluke of BJTs as zeners for final input protection of the ADCs which would certainly have been interesting enough to mention.I'm also rather interested in how higher digit CAT rated multimeters (such as Metrahit 30m) handle things, doesn't the tempco of the PTC at what I would guess is around 10000 ppm negative temperature coefficient (initially, before it goes up) start to affect precision? A quick look at some older service manuals for the fluke 8505A 6.5 digit bench meter showed it had "CAT forget about it" protection.
Suggestion for eppy #534 - Page 1
Forum section: electronics / general

author: Chipguy
author_rank: Unknown
timestamp: September 25, 2013, 08:14:20 pm
content: I would like a video "EEVBlog YouTube stats today and 500 episodes back" like in the EEVBlog #34.

author: M0BSW
author_rank: Frequent Contributor
timestamp: September 26, 2013, 07:31:40 pm
content: I think you should do a video on the "555", with the best interesting circuits for this marvellous chip, years ago the Transistor OC71, was the most popular transistor ever, I remember reading article one after the other in Practical wireless, about it,the 555 seems to have a similar affection with readers, so that's my vote 555, how about it Dave.

author: Chipguy
author_rank: Unknown
timestamp: September 26, 2013, 07:48:22 pm
content: Good idea, use episode #555 dedicated to NE555 stuff

author: firehopper
author_rank: Frequent Contributor
timestamp: September 26, 2013, 08:48:09 pm
content: http://shop.evilmadscientist.com/productsmenu/tinykitlist/652< how about this? I want one
advanced "fundamental" friday on TDR - Page 1
Forum section: electronics / general

author: wolf32d
author_rank: Contributor
timestamp: September 30, 2013, 11:05:27 am
content: What about a video on time domain reflectometry/reflectometers?

author: EEVblog
author_rank: Unknown
timestamp: September 30, 2013, 12:16:43 pm
content: I don't have one to demo. Used to have one, but sold it.Could cobble something together of course.Based on the latest video though, it seems the more "advanced" a FF video gets, the least popular it is.

author: Rerouter
author_rank: Super Contributor
timestamp: September 30, 2013, 12:41:45 pm
content: hook up your biggest pulse gen to the phone line through an AC coupler and measure the reflections with your fanciest scope, cant see why that wouldn't be popularwith all the people moping about how slow there broadband is could determine to the meter where the shitty twist and tape joint.At-least until telstra cancels your line rental for blowing up an input card

author: SeanB
author_rank: Super Contributor
timestamp: October 01, 2013, 06:27:11 pm
content: Going to be hard to pop a liner card, they have to survive 200VAC ring voltage applied to them. Normally only thing that pops them is lightning.

author: ve7xen
author_rank: Super Contributor
timestamp: October 02, 2013, 04:57:32 am
content: Alan W2AEW who hangs around here did a couple great videos on TDR:
Capacitor Values and Opamps Driving Capacitive Loads - Page 1
Forum section: electronics / general

author: wigman27
author_rank: Regular Contributor
timestamp: September 11, 2013, 11:48:31 am
content: HeyI am slowly working my way through all of the videos from the start :-) only 450 to go!! I am really enjoying them. So I am sorry if these videos already exist, if they do, could someone please guide me in the right direction :-)Recently there has been a bit of talk around why OP AMPS oscillate driving capacitive loads (like a MOSFET) mainly to do with driving Dummy Loads are the ones I have seen. Would it be possible to do a tutorial on phase shift and what is actually going on?Also, I watched your capacitor types tutorials which were great! however, would it be possible to do a tutorial on picking the best values, I know that its such a broad thing but for example a good filter cap setup for input filtration, good values for bypass and filter caps, and how to determine these values and what things should be considered, where and when to use the types you have described would be awesomeThanks Mate.Lee

author: Neilm
author_rank: Super Contributor
timestamp: September 11, 2013, 05:52:06 pm
content: Op amps go unstable due to the fact they have resistance at the output. This then creates a RC filter that connects to the feedback.Have a read ofthisapp note from Maxim. It explains how this works and gives simulations to show how this works.Neil

author: wigman27
author_rank: Regular Contributor
timestamp: September 12, 2013, 10:23:56 am
content: That is a fantastic document!Thank you

author: wigman27
author_rank: Regular Contributor
timestamp: September 12, 2013, 11:02:26 am
content: I think a tutorial on phase shift would be awesome, especially how it effects a DC driven OP-AMP and MOSFET Circuit.Its hard to try and get your head around phases and frequencies when dealing with DC.I can work out some of the hardest unbalanced delta and star power loads, sequence impedances and fault level calculations.. But can't get my head around working with frequencies and phase shifts in a DC circuit. Everything I have found talks about AC circuits.Thanks :-)Lee

author: wigman27
author_rank: Regular Contributor
timestamp: September 12, 2013, 11:14:30 am
content: One very basic thing I was neglecting to consider is the fact that DC and AC are exactly the same when you first turn the circuit on, is it the initial charge current and the out of phase current this causes that starts the initial oscillation? Then is basically drives itself thereafter?

author: Neilm
author_rank: Super Contributor
timestamp: September 12, 2013, 06:18:20 pm
content: Quote from: wigman27 on September 12, 2013, 11:14:30 amThere are some circuits that use that fact to start oscillation. There is one that uses 2 op-amps. One amp feeds the other and generates a sine (and cosine) wave at a reasonably stable frequency. (I just wish I could remember the name of it)Neil
Suggestion for a new forum - Page 1
Forum section: electronics / general

author: hans
author_rank: Super Contributor
timestamp: August 10, 2013, 04:52:13 pm
content: I spot a lot of threads about college, classes, education, career, and what not in "General Chat" (or even this forum too).So what about: have a career/education questions forum to filter them out.

author: Electro Fan
author_rank: Super Contributor
timestamp: August 27, 2013, 05:24:19 pm
content: This could be a discussion of education and career related advice, etc.; might also be a place for people to give others a heads-up on job opportunities.
EEVBlog Torrent Now Available - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: December 17, 2012, 10:23:40 pm
content: The 640x360 podcast feed is now available as a Bit Torrent from BitLove.orgFor those who prefer to get their files that way. And likely much faster too than the current cheap shared server were my podcast files are hosted.http://bitlove.org/eevblog/torrentDave.

author: Ross Dawson
author_rank: Newbie
timestamp: August 26, 2013, 07:14:02 am
content: Hi Dave.I have up to show 475 from your bit torrent feed. Alas nothing later.Have you abandoned this method of delivery or are you intending to update sometime in the future??Love your show especially your delivery style and the content value is immeasurable.CheersRoss (ZL3QK).

author: EEVblog
author_rank: Unknown
timestamp: August 26, 2013, 07:36:25 am
content: My ISP that hosts the files is blocking Bitlove on a mass scale. Nothing I can do about it but move hosts.

author: Ross Dawson
author_rank: Newbie
timestamp: August 26, 2013, 07:58:07 pm
content: Bugga.Would it be worth looking at an off shore vpn solution? Or have you already tried this and it didn't work out.Looks like I will have to keep on using youtube (I have subscribed to your channel so this shouldn't be a problem. I just prefer downloading that's all.

author: Monkeh
author_rank: Super Contributor
timestamp: August 26, 2013, 08:15:43 pm
content: Quote from: Ross Dawson on August 26, 2013, 07:58:07 pmYou can download from Youtube just fine.

author: Ross Dawson
author_rank: Newbie
timestamp: August 27, 2013, 05:35:55 am
content: Thanks Dave.Will do it that way for those I want to keep. My current internet connection is 128 Mbps down and 10 Mbps up so this seems to cope quite well provided there is enough upstream bandwidth.Oh by the way watched your teardown of the insulation tester, did you manage to repair the potting compound?!
GW Instek spectrum analysers - review/teardown - Page 1
Forum section: electronics / general

author: casuta
author_rank: Newbie
timestamp: June 02, 2013, 02:01:35 pm
content: Hello, is it possible that in the future, a review (or even a teardown) for a GW Instek budget spectrum analyser will be made available on blog ? I saw the Rigol DSA815 review and I was curious how Instek GSP-930 compares to it.

author: Hydrawerk
author_rank: Super Contributor
timestamp: June 02, 2013, 02:56:50 pm
content: Well, these spectrum analyzers are totally different, the GW Instek is much more expensive...

author: casuta
author_rank: Newbie
timestamp: June 02, 2013, 05:03:35 pm
content: You're right, only after I've posted I've noticed the price/features difference. Anyway, I've seen on the blog reviews for various GW Instek products and I thought that a SA might fit as well, if one can get a sample GSP-930.

author: videobruce
author_rank: Frequent Contributor
timestamp: July 03, 2013, 06:20:50 pm
content: Instek has a GSP-730 SA (3GHz) for $1k.;http://www.amazon.com/gp/product/B00C69IMVW/ref=olp_product_details?ie=UTF8&me=&seller=

author: Hydrawerk
author_rank: Super Contributor
timestamp: September 11, 2013, 08:31:37 pm
content: The GW Instek GSP-730 (3GHz) costs 1000USD.http://www.saelig.com/TSEQRFSAB/TSEQRF001.htmHas someone bought it? It is one of the cheapest spectrum analyzers.But I have read that the Rigol DSA815 is better value for money. Even if it is only 1,5 GHz and it costs about 1300USDhttp://www.rigolna.com/products/spectrum-analyzers/dsa800/dsa815/The DSA815 has better sensitivity and resolution bandwidth. Well, Rigol product have always been bang per buck, while GW Instek is not a top brand, but still rather expensive and maybe more long lasting ().But the cheapest SA you can get is ATTEN AT5006 for 675USD.http://www.china-oscilloscope.com/index.php?main_page=product_info&cPath=3_25_24&products_id=33It looks like a Hameg product from late 1980s
Hameg or other german equipment - rigol power supply - Page 1
Forum section: electronics / general

author: ddavidebor
author_rank: Super Contributor
timestamp: July 16, 2013, 09:44:35 pm
content: Hi daveHas been a looot from the latest german gear review or theardown.Hameg do a lot of "cheap" fantastic gear, super solid and well buildRhonde e swartz do things that inside are just pornographic... Things like all the vias aligned...Should be interesting.Ooh, and what about tha latest rigol power supply, the one like a spacecraft? It's too funky!

author: ddavidebor
author_rank: Super Contributor
timestamp: July 25, 2013, 10:59:50 pm
content: Dave, do you read every section of the forum expect this one, am i right?

author: dr.diesel
author_rank: Super Contributor
timestamp: July 25, 2013, 11:09:45 pm
content: I'm quite sure Dave would put the screwdriver to this in seconds if they'd send him one!

author: Unknown
author_rank: Unknown
timestamp: August 23, 2013, 02:45:19 pm
content: Hameg gear compared to Rigol and Agilent ones should be interesting...
More advices for beginners in electronics! - Page 1
Forum section: electronics / general

author: Tita
author_rank: Contributor
timestamp: August 02, 2013, 07:54:25 am
content: Hi!My suggestion is to make more videos for beginners in electronics:-troubleshooting tips;-how to obtainable the first job in electronics;-tell as more about your life experience;-global locations were we can find :cool jobs ,good pay ons,etc ;-more beginners lessons;-ETC!

author: Sigmoid
author_rank: Frequent Contributor
timestamp: August 09, 2013, 02:39:27 pm
content: Quote from: Tita on August 02, 2013, 07:54:25 amFirst job: Either go to a university, and while getting your degree, keep a watch out for companies looking for student interns. The best way to get a job, really.If you already have a degree, but have been working in another field for a long time, well good luck to you. Nobody wants to hire a "fallen engineer". Starting your own business may be the only viable way.If you don't want to go through too much formal education, I guess trying to get hired at a small (5-10 employee) company as a low level worker, and working up through the ranks may still be an option in this day and age.(My experiences are in software engineering, but I guess the job market is similar.)

author: smashedProton
author_rank: Frequent Contributor
timestamp: August 09, 2013, 02:44:58 pm
content: This topic should be renamed to "please do this for ne dave because I don't know how to use google".
Diptrace dollars for Dave? - Page 1
Forum section: electronics / general

author: tcleavela
author_rank: Contributor
timestamp: July 12, 2013, 05:10:07 pm
content: Hi all,Dave used to have a link to the Diptrace web page from his blog, so that he would get a cut from people who bought licenses. That link appears to be gone now; is it still possible to give Dave money by buying Diptrace?Thanks,Tom C.

author: crispytato
author_rank: Regular Contributor
timestamp: July 28, 2013, 12:32:11 pm
content: good question, I'd also like to know if this is possible, I was intending to get a copy of it some time soonish myself.peacechris

author: EEVblog
author_rank: Unknown
timestamp: July 28, 2013, 12:50:28 pm
content: Yes, the commission still works.The page is still there, but I'm not sure if the public can see it?http://www.eevblog.com/diptrace/If not, the link to use is:http://www.diptrace.com/order.php?en=1?source=eevblogThanksDave.

author: Krzysztof Szymiczek
author_rank: Newbie
timestamp: July 30, 2013, 10:18:46 pm
content: Hey Dave... Seems to have some technical issued with your DIPTRACE LINK.1. It's no more in the menu bar (it was there some time ago)2. The link you gave us on this page do not work:Not FoundSorry, but you are looking for something that is not here.3. Perhaps you should fix it to apear again in menu bar and to work... Maybe you loose some incomes during this error...regardsChris
YouTube videos marked as Private ..... wtf - Page 1
Forum section: electronics / general

author: PeterG
author_rank: Frequent Contributor
timestamp: July 30, 2013, 11:47:02 pm
content: <Rant>YouTube has a 'Feature' where people can upload a video and mark it as Private. There is a function where a video can be uploaded and automatically made public at a predefined time/date, however, subscribers get notified as son as the video is uploaded, NOT when it is available..... a few of the channels i subscribe to are using this feature and i can honestly say.......i pisses me off. I feel one of two things has to happen, either YouTube send emails out when the video is available or uploaders stop annoying there subscribers by using this feature.</Rant>P.S. It takes a bit to piss me off. But YouTube have done it.....

author: EEVblog
author_rank: Unknown
timestamp: July 30, 2013, 11:58:34 pm
content: That was me, sorry.I uploaded the video, released it, and then realised the youtube video stabilisation feature actually seems to work well on this video so I have applied it and it's processing again.It's set to private until it's done. Either way I'll get complaints...

author: PeterG
author_rank: Frequent Contributor
timestamp: July 31, 2013, 12:03:42 am
content: Sorry Dave, was not directed at you directly. But YouTube really need to address this issue.

author: ddavidebor
author_rank: Super Contributor
timestamp: July 31, 2013, 12:42:14 am
content: Ooooh can't we access it in unstabilized version?

author: EEVblog
author_rank: Unknown
timestamp: July 31, 2013, 12:44:54 am
content: Quote from: ddavidebor on July 31, 2013, 12:42:14 amAlright, so be it. I'm getting too many complaintsIt's not monetised either, youtube are so slow on that

author: Guppzor
author_rank: Contributor
timestamp: July 31, 2013, 01:17:45 am
content: Quote from: EEVblog on July 31, 2013, 12:44:54 amIt's YouTube, even if everything was perfect, someone would still complain that you were wearing the wrong coloured shirt...

author: vk3yedotcom
author_rank: Frequent Contributor
timestamp: July 31, 2013, 09:51:23 am
content: Quote from: Guppzor on July 31, 2013, 01:17:45 amSo true.Just last week I had a crazy guy complain (in Spanish) how very strange it was that I was explaining electronic block diagrams (with plastic boxes) outside on my patio's concrete pavers instead of doing it the 'civilised' way on a table.What he didn't know was that it had to be done on the ground due to tripod height and space required and I'd moved a table to clear space.Just as I was stewing up a vile ranty reply, Google Translate came to the rescue, revealing that he regularly trolled other people's videos. So instead of being dignified with a response his abuse got pulled!Fortunately rare for me but on the law of averages big raters would get lots - no matter how good.
Dave - this should be a humdinger  for 'ya....The BFC - Page 1
Forum section: electronics / general

author: george graves
author_rank: Super Contributor
timestamp: July 22, 2013, 11:21:18 am
content: Dave - this should be a humdinger for 'ya.....The BFCBFC aka.... the "Big Freaking Cap". offten a solution to a bad design. Right?I can just see you saying "Oh, the circuit doesn't work - just put in a bloody huge cap! Doh! What were they thinking?!?!??!"That's just an example of one short cut to a problem....I'm sure you know/seen many more shorts cuts using different bodge jobs - and not just green wires. Good ones, clever, or doggy. Using parts not as intended.Could be the start of a "engineering shortcuts" videos. When to use them, when not too, and past experiences. Would love to hear some electrical "duct-tape" stories!

author: EEVblog
author_rank: Unknown
timestamp: July 22, 2013, 01:06:15 pm
content: Err, link?

author: Amarbir[Lynx-India]
author_rank: Frequent Contributor
timestamp: July 22, 2013, 01:15:18 pm
content: Quote from: EEVblog on July 22, 2013, 01:06:15 pmLol ,Haa Haa Thats Our Dave

author: EEVblog
author_rank: Unknown
timestamp: July 22, 2013, 01:27:43 pm
content: Quote from: Amarbir[Lynx-India] on July 22, 2013, 01:15:18 pmAh, right, it's in the suggestions board.It's late, I need sleep...
500th LIVE SHOW - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: July 12, 2013, 07:48:06 am
content: Is tomorrow:http://www.eevblog.com/2013/07/10/500th-live-show/

author: WarSim
author_rank: Frequent Contributor
timestamp: July 30, 2013, 04:23:30 am
content: Just finished watching your 500th show. It took 2 days with my dodgy YouTube feed.I think you should just be able to say, no I don't want to, on the having someone edit for you question. Your content your decision.Here is a funny coincident over 4 decades ago I inhaled a peanut also. I am told it was considered an emergency back then. Doctors tried to help but they realized that tools small enough didn't exist. The only solution they had left was, they induced pneumonia so it would migrate up enough for me to cough it out. I am so glad the you son didn't have to go through the same ordeal. I am also pleased to hear the medical industry has created the tools to help.

author: c4757p
author_rank: Super Contributor
timestamp: July 30, 2013, 04:25:33 am
content: Quote from: WarSim on July 30, 2013, 04:23:30 amI'm not so sure about that....
Mailbag marathon? - Page 1
Forum section: electronics / general

author: dumle29
author_rank: Regular Contributor
timestamp: June 27, 2013, 08:59:45 pm
content: Hey there Dave, I thought that maybe you could do a mailbag marathonThat would let you get through that stack of yours. Could be fun to watch too. Say you did a livestream or something?

author: Unknown
author_rank: Unknown
timestamp: June 30, 2013, 12:44:42 am
content: I'm not necessarily for this, but I second the general idea. Dave has expressed puzzlement as to why the Mailbag is such a popular segment. Well, that's easy. We all get to be surprised along with him - there's truly no idea of what's going to happen when he opens the envelope or box. The lingerie proved that. And sometimes it turns into a really interesting mini-teardown.

author: EEVblog
author_rank: Unknown
timestamp: June 30, 2013, 01:04:24 am
content: The live streaming doesn't lend itself well to recording quality footage for main youtube upload.So it's a trade off between a few hundred people wanting to watch a live show and a few tens of thousands who want a more polished HD final video.

author: mickpah
author_rank: Regular Contributor
timestamp: June 30, 2013, 01:13:17 am
content: get Doug back on and blow something up , haven't seen some good destructive testing for a while. In a professional context of courseTaking it apart = good blowing it up = fun

author: Bored@Work
author_rank: Super Contributor
timestamp: June 30, 2013, 04:32:25 am
content: Quote from: mickpah on June 30, 2013, 01:13:17 amThis, kids, is what happens when someone watches too much mythbusters.

author: mickpah
author_rank: Regular Contributor
timestamp: June 30, 2013, 04:53:49 am
content: Quote from: Bored@Work on June 30, 2013, 04:32:25 amBeg to differ - EEV#84 a case in pointI've heard it said you don't learn anything if it works the first time if the learning experience is harmlessly percussive so much the better( like the big words to justify blowing shit up?) , now I really should get back in the ceiling and run that cable
Teardown of a Scientology E-Meter - Page 1
Forum section: electronics / general

author: Stonent
author_rank: Super Contributor
timestamp: June 20, 2013, 05:43:13 am
content: I think that would be an interesting teardown if only we could find one for Dave. (More-so for the commentary than what's inside)I've seen a teardown of an old one and it was pretty grubby work inside. But apparently they're constantly revising them.http://xenu.com-it.net/meter/e-meter_e.htm

author: c4757p
author_rank: Super Contributor
timestamp: June 20, 2013, 05:49:54 am
content: Quote from: Stonent on June 20, 2013, 05:43:13 amThe grubbier and bodgier, the more "special" and "scientific" it looks to someone who doesn't know jack shit about electronics.

author: c4757p
author_rank: Super Contributor
timestamp: June 20, 2013, 05:52:23 am
content: Quote from: Stonent on June 20, 2013, 05:43:13 amWell, I wasn't expecting that big old logic board. What the hell do the need that for?

author: AlfBaz
author_rank: Super Contributor
timestamp: June 20, 2013, 06:06:48 am
content: Quote from: c4757p on June 20, 2013, 05:52:23 amIt's a logic analyser... If you have any, you're out!

author: Neilm
author_rank: Super Contributor
timestamp: June 20, 2013, 09:52:49 am
content: Another example of an item designed for the Stupidity Tax

author: azi
author_rank: Contributor
timestamp: June 28, 2013, 06:29:20 am
content: I had to click on this thread because it immediately reminded me of radionics devices and aura photography equipment. I live in an area where these sorts of things are common. (Sedona, Arizona, USA)If you look inside a radionics device, you will typically see a crazy bunch of various components, wired together in a completely illogical manner. The "circuit" does not function in any manner, nor is it intended to. The people who make or sell them are happy to tell you that! Electronic functionality is not the point.Also, I've met various people here who sell "aura photos". Whenever I get a chance, I've asked them to explain how the equipment works, and they simply can't. I see absolutely no reason to believe it is actually doing what is claimed.But, the tourists who get the photos always seem happy the money was well spent. If that's what makes them happy, I don't mind.

author: c4757p
author_rank: Super Contributor
timestamp: June 28, 2013, 06:32:25 am
content: Quote from: azi on June 28, 2013, 06:29:20 amDamn, the pictures Wikipedia has are beautiful. I've got to get my ass back out to your neck of the woods again. I'm about due for an aura exam anyway...

author: Unknown
author_rank: Unknown
timestamp: June 30, 2013, 12:46:07 am
content: That was really interesting. It's funny how the board they designed is really crufty and crappy and handmade, but the board for doing the actual digital display is professional quality. And they charged $2500 for that??I get the image in my head of cult members slaving over a table tinning out traces by hand...
osciloscope comparison videos - Page 1
Forum section: electronics / general

author: ninonpas
author_rank: Contributor
timestamp: June 29, 2013, 02:59:27 am
content: hi davei think it would be absolutely great if you could do one big video or a series of videos comparing in one go diferent scopes of different makers and prices ranges like you did for a moment at the end of #487 – Tekway DST1102B Review and like you did for multimeters long time ago.maybe checking a list of the principal parameters and most commonly used settings and having them tested in paralel to all scopes and showing all the screens at the same time, that would be very instructive and helpfullthanks for your great work !
Supplier support - Page 1
Forum section: electronics / general

author: mswhin63
author_rank: Frequent Contributor
timestamp: June 23, 2013, 04:05:58 am
content: Hi Dave, I posted a message on the latest Siglent tech support crew and see you were happy to see level of involvement, I agree although under the current forum structure I can see some problems maintaining good support arena.Just a suggestion mentioned in the post could be create a section for each product issues and create child forums for each manufacturer. I don't know how to manage forums so I can offer suggestions but I can see issues being lost in amongst the pages and pages of a single thread. There are a couple already like this and difficult to troll through the information.I also noticed a lot of animosity comments on that post even before an issue was talk about. I suppose it wouldn't be to difficult to manage that as well. The poor guy/gal was overwhelmed with such negativity after the very first post.
Fundamental friday - Op-Amp building blocks  - Page 1
Forum section: electronics / general

author: eevblogfan
author_rank: Frequent Contributor
timestamp: June 21, 2013, 04:19:38 pm
content: HelloHey Dave , I really think you should do series of Op amps building blocks , it is too fundamental to skimp on and too useful to not spend time to explain the small issues within that section ,I hope you'll be able to shoot some blogs , but in the form of the 40+ min , the reason is this can not be covered by only 20 minutes of blog ( yes I am aware of the time you actually have to spend witch can be in the order of magnitude longer * Just saying * )I really appreciate your Giving to that small community as this blog was missing to many of us before we discovered your blogthank you A- lot for your help
Fundamental Friday on analog noise detecting and eliminating - Page 1
Forum section: electronics / general

author: 99tito99
author_rank: Regular Contributor
timestamp: July 13, 2013, 04:49:54 pm
content: Hi Dave: How about a Fundamental Friday on analog noise detecting and eliminating; e.g. filtering, common mode, mains noise, fluorescent lighting, in power supplies, improving in older equipment, etc. Cheers mate.
Agilent 34461a - Page 1
Forum section: electronics / general

author: sdscotto
author_rank: Contributor
timestamp: June 14, 2013, 03:31:34 pm
content: I sure hope Agilent sends you one of those new 34461a bench multimeters to review.

author: Circuitous
author_rank: Unknown
timestamp: June 14, 2013, 03:43:22 pm
content: You really are asking that?see:https://www.eevblog.com/forum/testgear/new-agilent-34461a-6-5-digit-bench-multimeter

author: sdscotto
author_rank: Contributor
timestamp: June 17, 2013, 05:29:41 am
content: YES, Circuitous, I really am asking that. It's why I took the time to make the post.I watch the EEVBlog (VIDEO being the key here), and this is a VIDEO blog suggestion group, right?I saw the Agilent announcement and wanted to see Dave be Dave touching buttons and commenting in real time rather than reading a bunch written opinions.Sorry to have bothered you. You can bang you head all you want, my suggestion still stands.

author: EEVblog
author_rank: Unknown
timestamp: June 17, 2013, 07:50:18 am
content: Quote from: sdscotto on June 17, 2013, 05:29:41 amHe means that I already have one, as I've mentioned in the posted thread.
Retro gaming on Google - Page 1
Forum section: electronics / general

author: SeanB
author_rank: Super Contributor
timestamp: May 15, 2013, 05:01:12 pm
content: Breakout, just go to Google image search and type in "Atari Breakout" into the search window, and have a few minutes of relaxation, complete with bleeps and bloops.....From....http://www.theregister.co.uk/2013/05/14/google_atari_easter_egg_jobs_cheating/

author: fenclu
author_rank: Regular Contributor
timestamp: June 13, 2013, 04:19:24 pm
content: It's so satisfying when you manage to hit a chord...
ESR and/or LCR meter shootout - Page 1
Forum section: electronics / general

author: kfitch42
author_rank: Frequent Contributor
timestamp: February 28, 2013, 06:25:41 pm
content: You have mentioned these devices few times, and it might be interesting to compare some of them. While you are at it you could delve into some of the devilish details of capacitors. Such as ESR of different types of caps, and what happens to ESR when caps are put in parallel.

author: don.r
author_rank: Frequent Contributor
timestamp: June 03, 2013, 02:51:23 pm
content: I agree. Its high time for an LCR shootout. With so many sub-$200 meters on the market now, its bound to draw some interest. Throw in some ESR-only meters as well, perhaps.

author: Unknown
author_rank: Unknown
timestamp: June 03, 2013, 03:00:41 pm
content: Did Dave ever do an LCR meter review beyond the low-end Extech one way back? If I recall correctly, he didn't make it past the teardown for either the IET or the Agilent. I might be wrong, though.

author: mariush
author_rank: Super Contributor
timestamp: June 03, 2013, 03:05:40 pm
content: It's months since a lot of us here suggested another multimeter roundup and we're still waiting.Can't do ten things at same time and do them well, I'd rather have Dave focus on the multimeter reviews and be done with that.

author: don.r
author_rank: Frequent Contributor
timestamp: June 03, 2013, 03:49:19 pm
content: He did a B&K I believe a long time back. He has done lots of MM shootouts but never an LCR. I think the time is right now (because I am in the market for one).
Special area for mods and hacks - Page 1
Forum section: electronics / general

author: DL5TOR
author_rank: Contributor
timestamp: June 20, 2013, 06:23:15 pm
content: Hello all,some posts in this form have made me thinking! (not good ?)There are some nice hacks/mods in this forum that well the manufacture should not see. So what if we make a new area for this kind of things that require a special status, say min 5 or 10 good posts. After reaching these posts the user can apply via PM to the moderator group and if a moderator thinks that the user is worthy for access then he can get access to this area.This is not intended to ban the users but to limit those that are really interested. And not those that are not active in this forum like for example manufacture XY that is only looking for the newest mods on his product to disable the possibility, but still allowing the general user to use it or to add his input.What do you think?

author: BravoV
author_rank: Super Contributor
timestamp: June 20, 2013, 06:36:10 pm
content: Won't work !Easy, just imagine you yourself is one of those company's employee and your boss is asking you to join this forum just to get the membership to that special section or you will get fired, do you believe is that too hard for you to get worthy status for the access ?

author: DL5TOR
author_rank: Contributor
timestamp: June 20, 2013, 06:39:00 pm
content: Quote from: BravoV on June 20, 2013, 06:36:10 pmI understand that it is not impossible for them to join but it makes it a lot harder

author: WBB
author_rank: Regular Contributor
timestamp: June 20, 2013, 06:48:37 pm
content: There is absolutely nothing going on here the manufactures won't find out about. Besides, it's much more beneficial to have the manufactures participating in the forum. Doing anything to turn them away would be nuts.

author: David_AVD
author_rank: Super Contributor
timestamp: June 20, 2013, 10:40:05 pm
content: If you don't want someone to see something, don't put it on the internet. That's the basic (practical) principle of it!
Maynuo M8831 "MicroAmp" Mobile Testing Power Supply - Page 1
Forum section: electronics / general

author: metalphreak
author_rank: Frequent Contributor
timestamp: May 31, 2013, 02:46:59 pm
content: http://www.maynuo.com/english/pro.asp?tid=69"Coming Soon"30V 1A (30W) doesn't sound exciting but...0.001mA readback resolution (1 uA!) - 0.5mV/0.02mA setting resolution steps.Built-in high-accuracy 5 1/2 voltmeter and milliohmmeter.high speed dynamic programming output(Voltage 0-30V, 1ms rising time)Sounds right up Dave's alley with his love of low power measurment stuffJudging by the rest of Maynuo's lineup, this should come in reasonably priced ($400-800 range?). Plus it doubles as a half decent 5.5digit voltmeter (obviously you don't get all the other features of a bench DMM).If anyone can get a freebie for a review, it would be youHmmm already for sale in a few places putting it around $650.
Only TearDowns ? - Page 1
Forum section: electronics / general

author: PA3BNX
author_rank: Regular Contributor
timestamp: May 26, 2013, 05:48:39 pm
content: Hello EveryBody,I like the tear downs very much here on EEVBLOGBut I even more like the building equipment from scratch video'sand new projects.I know building something takes much more time then teardowns.What should be a building video contain:Al the steps taken to get a good product or equipment that you canbuild and use !I know ready to build kits or designs takes a lot of time and experimentingand talking about the subject.We are very lucky to have a person like Dave Jones on the internet as techies.After all many thumbs up for Dave Jones EEVBLOG activities.

author: SeanB
author_rank: Super Contributor
timestamp: May 26, 2013, 06:14:04 pm
content: There have been design videos, and I learnt a lot from watching Dave try various avenues, and discuss each one as he did so. His failures are very instructive, you learn a lot from these.

author: casper.bang
author_rank: Frequent Contributor
timestamp: May 26, 2013, 07:15:26 pm
content: The actual engineering videos are also of most interest to me, but of course Dave only has 24h a day. However, lately he started doing the Fundamentals Friday videos and they are right up there in my opinion, as they typically contain an interesting mix of theory and practice (engineering!). I hope he continues that segment.
Possible Malware block? - Page 1
Forum section: electronics / general

author: KedasProbe
author_rank: Frequent Contributor
timestamp: May 26, 2013, 09:55:51 am
content: Hi,I'm getting this warning message every time I go to the mainwww.eevblog.comwebsite. (not the forum)Is this over-active protection of 'malwarebytes anti-malware pro' or is something going on?

author: Bored@Work
author_rank: Super Contributor
timestamp: May 26, 2013, 10:15:15 am
content: That is an IP address in China, owned by China TieTong Telecommunications Corporation.If we assume Dave doesn't have content or advertising from China embedded onwww.eevblog.com, and since Malwarebytes products are usually respected, I would be careful and assume something is going on.

author: Fraser
author_rank: Super Contributor
timestamp: May 26, 2013, 10:39:58 am
content: It may be just me, but I am seeing very slow loading of the EEVBlog main site whenever visited from the UK and I have a BT Infinity 40Mbs bearer that normally performs flawlessly. Running AVG and no threat report to date.

author: EEVblog
author_rank: Unknown
timestamp: May 26, 2013, 11:01:13 am
content: Quote from: Bored@Work on May 26, 2013, 10:15:15 amSiglent have just joined as an advertiser and their ad image is linked to their sitehttp://www.siglent.com/image/SIGLENT.gif

author: PA0PBZ
author_rank: Super Contributor
timestamp: May 26, 2013, 11:19:54 am
content: That's the one:nslookup siglent.comName: siglent.comAddress: 122.70.138.159

author: KedasProbe
author_rank: Frequent Contributor
timestamp: May 26, 2013, 01:20:50 pm
content: Quote from: PA0PBZ on May 26, 2013, 11:19:54 amCorrect, I get the same pop-up when pressing thathttp://siglent.com/link.

author: Lightages
author_rank: Unknown
timestamp: May 26, 2013, 05:47:28 pm
content: Malwarebytes has been getting worse for false positives lately, to the point of destroying some systems by removing needed files. I uninstalled it.
Show the mess - Page 1
Forum section: electronics / general

author: ddavidebor
author_rank: Super Contributor
timestamp: May 17, 2013, 07:17:03 pm
content: Hi dave.You should do a raw video when you clean the eevblog lab (whit all the things of the world on the floor).We all love see the mess in your lab, like in the gopro cam teardown.

author: bitwelder
author_rank: Super Contributor
timestamp: May 18, 2013, 07:58:06 am
content: "We all" ?How many are you there?

author: ddavidebor
author_rank: Super Contributor
timestamp: May 18, 2013, 11:55:47 am
content: Here we see the show in 4
Fundamental Ideas - Page 1
Forum section: electronics / general

author: MagicBlueSmoke
author_rank: Newbie
timestamp: May 13, 2013, 11:36:20 am
content: Hello Dave,You've got a terrific show going, and you just made it even better with this new segment. I really like your conversational "off the cuff" approach. It lowers the "stress level" of trying to learn something, and makes it easier to absorb and grasp the gist of things. If, later on, I need absolutely accurate terminology, I'll look it up in a reference book or textbook (which I can finally understand thanks to your videos getting me over the initial barrier to understanding this stuff).Since you asked for ideas, I thought I'd chip in with my wide-ranging lack of knowledge!Here are some things I'd like to learn about on Fundamental Fridays:* Pulse Width ModulationI know that it can be done with a 555, but I have no idea how it works. Maybe also cover different ways of doing it, what the benefits & drawbacks of each approach are. From what I understand so far, PWM is a very useful thing in all kinds of applications, like power supplies (would supplying a CW voltage multiplier with the output of a PWM make a proper "switching" power supply?), powering motors at variable speeds, dimming LEDs, controlling/driving stepper motors and servos, etc...* Controlling/Driving Stepper Motors and ServosWhat goes into controlling a stepper motor? How do each of the circuit stages work? Are controllers and drivers the same thing or are they completely different?* Constant Current Circuits* Constant Voltage Circuits* Inductance Circuits* LC Oscillators* Phase Locked Loops(Are these in the category of fundamental? Or are they a bit advanced for a fundamentals segment?)* Latches & Logic CircuitsHow the basic logic circuit elements (AND, OR, NOT, NOR, XOR gates) work at the transistor level.* Memory CircuitsDRAM, SRAM, EPROM, EEPROM, NAND Flash & NOR Flash* Anything with a 555 timerThere are LOTS of basic circuits that can be done with a 555 timer and just a few other components, and it would let the kids follow along at home with their 555's and breadboards.

author: ddavidebor
author_rank: Super Contributor
timestamp: May 17, 2013, 07:18:20 pm
content: Pwm can be explained in less than 1 minute

author: mswhin63
author_rank: Frequent Contributor
timestamp: May 18, 2013, 01:51:37 am
content: There are some early videos on couple of subjects already, PWM using a 555 is herehttp://www.eevblog.com/2012/11/29/eevblog-392-555-led-pwm-hack/done from a hack required which goes into fundamentals very nicely.Best to check earlier videos first. Some are hidden in hacks or other stuff.

author: nuhamind2
author_rank: Regular Contributor
timestamp: May 18, 2013, 03:57:33 am
content: How about Filter basic
Forum Inline-Image Fix Suggestion - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: June 02, 2013, 06:47:25 pm
content: This is just a summary of a suggested fix to stop inline images and attached images from not resizing correctly in the page.Steps.a). In the Admin area, if the "max_image_width" and "max_image_height" is set to 0, then it would need setting to something like 768, for both values.b). Then in the filehttps://www.eevblog.com/forum/Themes/default/scripts/theme.js~line 34, comment-out the line..Code:this.style.width = this.style.height = this.style.width == 'auto' ? null : 'auto';and add..Code:reqWin( this.src, 1024, 768, false);so basically it will now look like...Code:// this.style.width = this.style.height = this.style.width == 'auto' ? null : 'auto';reqWin( this.src, 1024, 768, false);Ideally you'll be testing this on a staging server with an duplicate of the forum software and upload 2 large images; one attached and one inline.So the first step is for an Admin?? to verify that "max_image_width" and "max_image_height" is indeed set to 0Obviously if this still doesn't make sense or you need more clarification then just PM me.
Where are the Brymen multimeters? - Page 1
Forum section: electronics / general

author: ivan747
author_rank: Super Contributor
timestamp: May 05, 2013, 06:32:05 pm
content: I was looking forward to watching the reviews of the Brymen multimeters Dave got in the mail. Will you ever do it, Dave?

author: ddavidebor
author_rank: Super Contributor
timestamp: May 05, 2013, 07:20:45 pm
content: I think he will make a shootout for price range

author: nanofrog
author_rank: Super Contributor
timestamp: May 06, 2013, 02:34:36 pm
content: He'd almost certainly use them in a shoot out (given the thread on this), which would take a good bit of time to do well.So perhaps it's best to be patient, and let Dave have the time he needs to get everything in and done.