hybridfree/eevblog-posts huggingface dataset:
Please allow .jpeg attachment in forum - Page 1
Forum section: electronics / general

author: spth
author_rank: Regular Contributor
timestamp: February 28, 2019, 10:39:34 am
content: .jpeg is a common extension for JPEG files. having to rename them to .jpg for use in this forum (since the forum software currently only allows .jpg, not .jpeg) in annoying.

author: Psi
author_rank: Super Contributor
timestamp: February 28, 2019, 11:01:19 am
content: .docx and .rar are also missing.

author: Jeroen3
author_rank: Super Contributor
timestamp: February 28, 2019, 01:11:40 pm
content: Quote from: Psi on February 28, 2019, 11:01:19 amThose I can understand. They are easy to exploit with malicious code. If you want to share documents with the internet, see Google Docs.But jpeg should be added. Maybe also HEIF, HEIC and .HEICS should be added for innovative support?https://www.eevblog.com/forum/chat/forum-admin-add-jpeg-file-extension-for-upload-pls/25/

author: EEVblog
author_rank: Unknown
timestamp: February 28, 2019, 02:05:36 pm
content: done

author: drussell
author_rank: Super Contributor
timestamp: February 28, 2019, 03:30:46 pm
content: Quote from: Jeroen3 on February 28, 2019, 01:11:40 pmSeriously?

author: Jeroen3
author_rank: Super Contributor
timestamp: February 28, 2019, 08:36:36 pm
content: Quote from: drussell on February 28, 2019, 03:30:46 pmUhm. Yes?It's perfect for sharing and collaborating on documents on the internet.If you want to share finished documents, use pdf.Quote from: EEVblog on February 28, 2019, 02:05:36 pmFor archive purposes, today supported:doc, gif, jpg, jpeg, pdf, png, txt, zip, tar, c, h, hex, bas, xls, odt, asm, wav, aiff, wma, mp3, flac, asc, ods, xlsx, py

author: beanflying
author_rank: Super Contributor
timestamp: February 28, 2019, 10:30:33 pm
content: Quote from: EEVblog on February 28, 2019, 02:05:36 pmCan I suggest that if it is not already done you block or at least require moderation approval for posters with with low post counts (sub 1 - sub 5?) adding attachments if you are going to allow this expanded range of files. Much as everyone should use common sense with downloads not everyone has thatAlso odf and docx would be the other two to complete the set.Quote from: drussell on February 28, 2019, 03:30:46 pmGood reasons to use Google docs occasionally for forum sharing due to the file size limit. I did this last week for a fat PDF for one of the members.
Deep space dial-up: How NASA speeds up its interplanetary communications - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: March 03, 2019, 12:42:35 am
content: Deep space dial-up: How NASA speeds up its interplanetary communications“Not much room to improve radio frequency tech... We're running out of low-hanging fruit."Jacek Krywko - 3/1/2019, 7:45 AMhttps://arstechnica.com/science/2019/03/how-et-phones-home-what-todays-interplanetary-internet-service-looks-like/3/
EEVblog #1179 - Mailbag - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: February 12, 2019, 03:41:54 am
content: Stempedia Electronics Learning Kit:https://thestempedia.comPowerfilm Solar flexible indoor solar panels and bluetooth development board.https://www.powerfilmsolar.com/specialty-markets/indoor-solar-panels/Synwit 25 cent ARM microhttp://smdprutser.nl/blog/the-arm-chip-that-wont-cost-an-arm-and-a-leg/https://lcsc.com/product-detail/Synwit_SWM050I2P7-65_C111818.htmlXmas tree light PCB:https://goo.gl/U8H48yCasio Calculator watch teardownFull length video cuts:Stempedia Evive:Powerfilm Solar:

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: February 12, 2019, 05:14:24 am
content: I would have loved that Indian Electronics Kit as a kid, which is much different then those "Radio Shack 500 and 1 basic starter" kits that I started with. Those Radio Shack kits never went above a certain level in learning which was their down fallThose videos are pure Camp !

author: reagle
author_rank: Unknown
timestamp: February 12, 2019, 05:18:15 pm
content: First time I noticed youtube ads in the middle of video - way more distracting than the usual ones at the beginning. Has that been going on for a while?

author: free_electron
author_rank: Super Contributor
timestamp: February 12, 2019, 05:23:24 pm
content: dave, you ding-dong .. that plastic red 3d printed thingie is the base for that christmas tree 1

author: orion242
author_rank: Unknown
timestamp: February 12, 2019, 06:30:28 pm
content: Stempedia EviveWTF is the phallic figure dancing around? I that's one of the most ridiculous things I have seen on ytube in recent memory.

author: MT
author_rank: Super Contributor
timestamp: February 12, 2019, 06:37:44 pm
content: Neo needs to be ditched and the whole thing uplifted from the "colory" bibbliboy toddlerydoi level.Whos their targeted market?The 4 year old or 5 or 6 or 7? Big difference!

author: orion242
author_rank: Unknown
timestamp: February 12, 2019, 11:46:13 pm
content: Neo even has a little sack.

author: Sjaak
author_rank: Contributor
timestamp: February 15, 2019, 08:44:28 pm
content: Thanks for covering the small ARM chip.I really like the way you pronounced SMDprutserthe 'u' is pronounced similar to the 'u' in summer. I won't go into details what 'prutser' means
EEVblog #1156 - Focal Professional CMS40 Studio Monitor Teardown - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: December 12, 2018, 10:02:49 pm
content: A look inside the die-cast alloy Focal Professional CMS40 Studio Monitor speakers.

author: Muttley Snickers
author_rank: Unknown
timestamp: December 12, 2018, 10:31:12 pm
content: Nicely made and they shouldn't rattle with all that goo and padding inside, that white stuffing material appeared to be Dacron by the way. You probably should have fired them up so we could all have a listen, a good excuse for a follow up and comparison perhaps.

author: EEVblog
author_rank: Unknown
timestamp: December 13, 2018, 12:32:14 am
content: Quote from: Muttley Snickers on December 12, 2018, 10:31:12 pmIt's hard to do proper speaker comparisons.

author: langwadt
author_rank: Super Contributor
timestamp: December 13, 2018, 01:34:20 am
content: If you wanted TRS input I suspect something from the Neutrik combo series will fit right in

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: December 13, 2018, 02:39:41 am
content: Sorry Willie Wonka didn't write that quote !A thing of beauty is a joy for everhttps://www.poets.org/poetsorg/poem/endymion-book-i-thing-beauty-joy-ever

author: EEVblog
author_rank: Unknown
timestamp: December 14, 2018, 08:57:12 am
content: Quite a few have asked for a comparison review and response test.I don't have the right gear for this, but I found this video which is pretty comprehensive:
Looking for specific (mailbag?) episode ("capacitor in a box") - Page 1
Forum section: electronics / general

author: exit_failure
author_rank: Regular Contributor
timestamp: December 13, 2018, 11:18:16 am
content: I've been searching for a couple of days now but I just can't find a specific episode. I think it was a mailbag episode where Dave opened some (more or less) fake and hilariously shitily built car filter thing which he called "basically a capacitor in a box" (which it was :-D ), if I remember correctly.I would be very thankful if anyone could point me in the right direction.
Dave’s vBlog on lead acid battery efficiency - Page 1
Forum section: electronics / general

author: DougSpindler
author_rank: Super Contributor
timestamp: December 04, 2018, 03:59:29 pm
content: I thought I watched a video where Dave gave a presentation on the efficiency of lead acid batteries. (I might be mistaken.) In the video Dave talked about the heat loss in charging leas acid batteries, up to 20% and the heat loss when discharging which iis also about 20%. So between charging and discharging lead acid batteries up to 40% can be lost as heat.Anyone remember the video and can offer a link? Or was this someone else.Thanks

author: thm_w
author_rank: Super Contributor
timestamp: December 04, 2018, 08:43:27 pm
content: I think round-trip efficiency is more like 80%, but there may be other factors mentioned in the video.~80%:https://batterytestcentre.com.au/project/lead-acid/76%:https://www.energyblueshelp.com/single-post/2017/09/04/Round-Trip-Efficiency-its-impact-on-cost85%:https://www.sciencedirect.com/science/article/pii/S2352152X17304437

author: DougSpindler
author_rank: Super Contributor
timestamp: December 05, 2018, 09:47:15 pm
content: I though Dave a really nice video explaining it. And it was 20/20 totaling 40% loss.
"EEVblog #600 - Opamps Explained"  - Page 1
Forum section: electronics / general

author: GigaJoe
author_rank: Frequent Contributor
timestamp: October 30, 2018, 07:46:13 pm
content: is any following episodes? or I miss it?

author: screwbreaker
author_rank: Regular Contributor
timestamp: October 30, 2018, 08:43:34 pm
content: Every video on the fundamentals section:https://www.eevblog.com/fundamentals/

author: GigaJoe
author_rank: Frequent Contributor
timestamp: October 30, 2018, 10:01:03 pm
content: ok , but there is no follow up video ....

author: EEVblog
author_rank: Unknown
timestamp: October 30, 2018, 10:39:02 pm
content: https://www.youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf

author: GigaJoe
author_rank: Frequent Contributor
timestamp: October 30, 2018, 11:35:44 pm
content: Right , thanks, but .... 600 are last .... there is no follow up or continue of this topic ... 600 video shows some intrigue moments in the end with promise to explain it later , and .... nothing ...Yes 27 years pass .... but I'm curious if I have a right answer , that kinda itchyUPD:EEVblog #528 - Opamp Input Noise Voltage Tutorialgreat , but didn't cover input current noise, and how resistor affected noise. it would be interesting as wellUPD2: does noise (voltage and current ) are different between inverting and non-inverting , single and dual power ?
The EEVblog Lab is moving - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: October 29, 2018, 01:17:05 am
content: The EEVblog Lab is moving!

author: MrMobodies
author_rank: Super Contributor
timestamp: October 29, 2018, 01:57:50 am
content: There is going to be lovely bright daylight in the background or reflection instead of those led's in the ceiling.I don't suppose you can do some live videos during the move? Oops silly me not possible.

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 29, 2018, 02:37:10 am
content: What's Dave going to do with all the junk in the bunker? I got dibs on the "Coach Feet" LOL

author: lowimpedance
author_rank: Super Contributor
timestamp: October 29, 2018, 03:02:59 am
content: Of course the most important question is .... Whats the new dumpster room look like ?.Sounds like the old one may need a few more empty bins very soon !.

author: Tony_G
author_rank: Super Contributor
timestamp: October 29, 2018, 04:47:44 am
content: Once you get 3 monitors you can't go back. I love my setup and had to rearrange my home lab to support it. Looking forward to the dumpster diving announcement for Sydney based forum membersTonyG

author: Artlav
author_rank: Frequent Contributor
timestamp: October 30, 2018, 06:31:16 pm
content: Sort and organize, hm?My approach to it is to packetize stuff by default.Every project gets it's own box.Every topic gets it's own box.Every part type gets it's own box.Boxes range in size from "CF card holder" all the way to "try lifting that".Do recommend, if you want to acquire a new good habit.

author: nctnico
author_rank: Super Contributor
timestamp: November 02, 2018, 05:21:54 pm
content: Quote from: EEVblog on October 29, 2018, 01:17:05 amHmm it seems the problem is too much bench space, too little storage for projects and way too much junk which needs to be chucked out. Dave, you are on the edge of becoming a hoarderI like the system Artlav has posted. I have a similar system in place to stay sane.

author: Brumby
author_rank: Unknown
timestamp: November 03, 2018, 12:11:43 am
content: As well as the containerisation ofjunkstuff, and the mandatory labeling (the number of times I have checked the same 3 tubs for something...!), I have strong feelings about colour coding if you can manage it. A target with a known colour (or combination of colours) can be spotted at a distance or partially buried whereas labels might be inaccessible until some shifting/digging has been done.
EEVblog #1133 Mailbag Monday - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: October 14, 2018, 09:23:30 pm
content: Mailbag Monday, teardown bonanza!SPOILERS:- West German Geiger Counter Teardown- 6:35 Leo Bodnar Oscilloscope 40ps Pulse Generator for oscilloscope bandwidth measurement.https://www.leobodnar.com- 11:32 Pocket Sprite Keyring Gameboy Teardownhttps://pocketsprite.com/- 14:31 Defibrillator Simulator Teardown- 21:23 - Philips CD Discman Teardown

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 14, 2018, 10:19:14 pm
content: Hello McFly it's still Sunday in the United States !

author: drussell
author_rank: Super Contributor
timestamp: October 14, 2018, 10:27:57 pm
content: NOTHINGTOSEEHERE...13:54 - Priceless...

author: Mr. Scram
author_rank: Super Contributor
timestamp: October 14, 2018, 11:01:41 pm
content: More Mailbags than I can poke a probe at. I think I like the new format!

author: nixfu
author_rank: Unknown
timestamp: October 15, 2018, 12:26:16 am
content: For those interested here is the ESP32 based gameboy emu:https://www.espressif.com/en/media_overview/news/pocketsprite-esp32-based-gaming-device

author: rjp
author_rank: Regular Contributor
timestamp: October 15, 2018, 01:36:09 am
content: Quote from: nixfu on October 15, 2018, 12:26:16 amseems very simmilar to this pre existing one.https://www.hardkernel.com/main/products/prdt_info.php?g_code=G152875062626all of which pale in comparison tohttps://github.com/jkirsons/doom-espidf

author: Kjetil
author_rank: Regular Contributor
timestamp: October 15, 2018, 08:55:58 am
content: Great to see that you put the coin into circulation

author: IanMacdonald
author_rank: Frequent Contributor
timestamp: October 15, 2018, 10:41:08 am
content: -Proper knife? That's a toothpick, Dave.Here's a proper knife...

author: Zom-B
author_rank: Regular Contributor
timestamp: October 15, 2018, 05:43:25 pm
content: To disassemble the Geiger counter, you first have to remove the knob and axle of the rotating drum, then the drum itself, and then tilt the double PCB up from the rotary contacts side. (I already desoldered lots of thin wires from the analog meter movement)The aperture is supposed to open all the way but the clutch that engages the knob (yes the knob, not the axle) got bent because it's not visible from the outside that it's even there.

author: JoeMuc2013
author_rank: Contributor
timestamp: October 15, 2018, 06:12:38 pm
content: NOTHING TO SEE HERE.I CAN TELL YOU THIS THING IS WAY MORE INTERESTING WITH THE DISPLAY THAN WITHOUT.Heh, good one

author: steve30
author_rank: Frequent Contributor
timestamp: October 23, 2018, 02:19:44 pm
content: Someone should make some DAC ICs called the DACedydoodah.
Lets push eevblog to Youtube educational program! - Page 1
Forum section: electronics / general

author: nuclearcat
author_rank: Unknown
timestamp: October 23, 2018, 02:56:52 am
content: Here is article at slashdot:https://news.slashdot.org/story/18/10/22/2123221/youtube-is-investing-20-million-in-educational-content-creatorsI think we all need to push EEVBlog as much as we can to be included in this program.I did tweet about thathttps://twitter.com/nuclearleb/status/1054565890572857345, but probably someone else can use better wording (as my english is terrible), and post here their appeals, so we can all repost to bring attention of program leaders to that. Maybe worth to call somehow on all forum for that?
I'm searching a video where Dave got several big FPGA boards from mailbag - Page 1
Forum section: electronics / general

author: Momchilo
author_rank: Regular Contributor
timestamp: October 16, 2018, 11:32:42 pm
content: Hi,the title says it all. I can't find the damn video. I think the boards came from a telecommunication system or something like this and he got them from mailbag. The boards are big, sexy and packed with FPGAs. If anyone can link or name the video from Dave, that would be great.Best regardsMomchilo
EEVblog #1137 - Mailbag Monday - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: October 22, 2018, 10:18:40 pm
content: SPOILERS:https://www.pirlcharger.com/12:20 iTron VFD Displays16:06 Oscilloscope Component Tester22:23 Random Chinese Mailbags

author: MT
author_rank: Super Contributor
timestamp: October 22, 2018, 10:42:00 pm
content: One of the days your going to cut your "diddlydo" off swinging that ass large knife so close!

author: coppercone2
author_rank: Super Contributor
timestamp: October 23, 2018, 02:06:34 am
content: I think the phone thing might be a microscope for your telephone, the protrusion from the LED could act like a stand off for the lens. Maybe its meant for repeatable shots with a know stand off distance in macro style if its not magnified, it seems to be made of the reattachable washable rubber. Maybe for taking pictures of currency?I don't like the USB thing because for something meant for a lab they could shield it and make better strain relief thats tighter around the USB. I had high hopes when I saw the torx screws.If you wanna make jones safer mail him one of these lol (great discussion in the comments too)https://toolguyd.com/how-to-open-really-thick-cardboard-boxes/

author: MiDi
author_rank: Frequent Contributor
timestamp: October 23, 2018, 10:41:11 pm
content: I like this tiny little clips from the curve tracer!How are they named - I have to get them!

author: KeithBrown
author_rank: Contributor
timestamp: October 24, 2018, 08:34:52 pm
content: As for a scope that can do differential and X vs Y: any Tek 7000 series with two vertical plug-ins, one needs to be a dual, in Add channel mode with ch2 set to invert. No time base needed, plug one of the verticals into the time base slot! Easy! Versatile! (That must be why I have three of them.)

author: MiDi
author_rank: Frequent Contributor
timestamp: October 29, 2018, 07:50:14 am
content: Quote from: MiDi on October 23, 2018, 10:41:11 pmAfter quite some time of searching:Hirschmann AGF 1 930476001
EEVblog Live Soldering Haasoscope - Page 1
Forum section: electronics / general

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: September 28, 2018, 08:11:07 pm
content: Here's about all I can do in 1 hour. I do have a life after all. I use have used Eagle since 3.xx and will until I can master Kicad.Here is a partial redraw of the mess. Please look at some YouTube videos for the proper way to draw a schematic.you can see the start of a bus being drawn (blue line). i don't want to go further.It should give a clue as to how long (using Eagle) to redraw it.Dave... Eagle is not hard to master IF: you don't try to use it as Altium.The Eagle GUI is all I use, dumbed down to a ver 3.xx view.And now a preview of our main attraction:Yes it is an open sore not a source.

author: haastyle
author_rank: Regular Contributor
timestamp: October 02, 2018, 07:36:27 pm
content: I made an attempt at cleaning up my schematic. Comments welcome!https://github.com/drandyhaas/Haasoscope/blob/master/eagle/max10adc_v9.0_schematic.pdf

author: Quarlo Klobrigney
author_rank: Super Contributor
timestamp: October 02, 2018, 07:49:04 pm
content: Please turn off pins in the layers and print again. I would have like to have seen Busses and not separate blocks with wires that just end in free air. PIN_ANALOG_IOEXP connector and others, have junction dots on the pins. This means that you have loose unconnected wires.Anyway, I guess you have time to redo it.Quote from: haastyle onTodayat 14:36:27

author: haastyle
author_rank: Regular Contributor
timestamp: October 02, 2018, 08:16:35 pm
content: Thanks!What do you mean by "turn off pins in the layers"?Those junction dots were superfluous and harmless; I just removed them.
EEVblog #1123
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: September 20, 2018, 12:46:15 am
content: A look at the recent EEVblog meetup and the projects people bought along to show off. And you won't believe which companies advertised at the event! :-DKickstarter Particle Accelerator:https://awesome.tech/BrunoPoweeer:https://www.youtube.com/user/bruno2bariMakersMuse:https://www.youtube.com/user/TheMakersMuseMickMake:https://www.youtube.com/channel/UC7GMT3ohvYEAJFDenzj9EMQ

author: Halcyon
author_rank: Unknown
timestamp: September 21, 2018, 11:54:40 am
content: I'm really annoyed I couldn't make it! I would have love to have met some of the wider EEVblog community, particularly Alistair, really interesting stuff!
New sub forum request for consideration - parts available/want-this-and-that - Page 1
Forum section: electronics / general

author: tkamiya
author_rank: Super Contributor
timestamp: September 15, 2018, 05:45:34 pm
content: I know there is a buy and sell section but they are not quite appropriate for this.I started offering parts - cheap - for EEVBLOG members. I am ending up with too many half-dead equipment that I'm not going to fix. They go into parts rack in my garage.Having said that, I know many people do this and it's really a handy way to hard to get parts. eBay asks for outrageous prices sometimes/often that it's not economically feasible. Would Dave/Mods consider having a section where we can advertise what we have and willing to part out? Conversely, a section for what we need and see if anyone has it?I think it's a worthy way for our forum to help each other.

author: drussell
author_rank: Super Contributor
timestamp: September 15, 2018, 05:55:20 pm
content: Quote from: tkamiya on September 15, 2018, 05:45:34 pmWhy would the current buy/sell section not be appropriate?There is no reason you cannot post things for low cost or free-just-pay-shipping or whatever... ??

author: tkamiya
author_rank: Super Contributor
timestamp: September 15, 2018, 10:03:00 pm
content: It's because the post will have to live for a while and it's not a "thing" I'm offering. Buyers will have to tell me what they are looking for. I guess it'll be ok though.

author: Brumby
author_rank: Unknown
timestamp: September 16, 2018, 03:45:11 am
content: Just check back periodically for people putting up aWantedToBuy post.Besides, putting up a post with some model/part numbers can be useful. Yes, it will drift down the sub board - but this can be searched. So - when putting up such a post, include text that will encourage inquiry from someone who finds it in a search 6 months down the track.
Local Time Display incorrect - Resolved - Page 1
Forum section: electronics / general

author: bhishmar
author_rank: Contributor
timestamp: September 01, 2018, 06:32:10 am
content: Don't know whether this is the correct place !!I am from India. (TimeZone: GMT +5:30 hrs)My Local time both in posts & profile is wrongly displayed.It shows as GMT+11:00 hrs. seems to be Sydney/Australia time.How to correct this?Can the administrators/moderators take notice.Update:-- There is no provision for any user to enter TimeZone.- But there is a provision to enter country in your profile.I assume, the forum software should take this entry to process local time.Somehow it is not doing this properly!!

author: JS
author_rank: Frequent Contributor
timestamp: September 01, 2018, 06:48:16 am
content: Mine is a bit off as sell, not as much as yours, but worse than that I'm seeing pm and am messed up, unless 3pm is supposed to be the middle of the night.JS

author: Brumby
author_rank: Unknown
timestamp: September 01, 2018, 07:02:15 am
content: The default forum time is for Sydney, Australia - and since that's where Dave is, it makes sense.You can vary your offset by navigating to your profile settings "Look and feel" and put a number of hours in the field provided. As you can see, you can put in negative and decimal values. You can also try clicking on "auto detect" to see if it comes up with the right value for you.Don't forget to click on theChange Profilebutton down the bottom of the page or your changes won't be saved!!I'm not sure what happens with daylight savings changes - but if you end up out of whack, it's just a matter of changing the offset twice a year....

author: bhishmar
author_rank: Contributor
timestamp: September 01, 2018, 07:31:58 am
content: Quote from: Brumby on September 01, 2018, 07:02:15 amThanks Brumby. Updated "Time Offset" in my profile to 4.5, & Now my time display is correct.

author: Monkeh
author_rank: Super Contributor
timestamp: September 01, 2018, 01:42:39 pm
content: Quote from: Brumby on September 01, 2018, 07:02:15 amFour times a year. Because using his local time zonedoesn'tmake sense.
EEVblog #1117 - PCB Power Plane Capacitance - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: August 31, 2018, 03:13:39 am
content: Are power planes in a 4 layer PCB any good as a capacitor?Can it work as one big bypass capacitor?A look at an discussion on PCB layer stackups, and some measurements on 4 and 8 layer PCB power planes with different prepreg thicknesses and how well they work as a capacitor.https://www.xilinx.com/support/documentation/application_notes/xapp623.pdfhttps://www.researchgate.net/publication/242415439_High_Performance_FPGA_Bypass_Networks

author: Bud
author_rank: Super Contributor
timestamp: August 31, 2018, 03:45:49 am
content: Thanks, but I am unconvinced about the connection wires from the calibration plane to the board. Seemed good 20 cm of loop wire to me, which resonated with the inter-plane capacitance and that created a dip in the chart. Proper calibration has to be done at the connection points on the board.

author: dardosordi
author_rank: Regular Contributor
timestamp: August 31, 2018, 04:34:22 pm
content: Yeah, can we see the capacitors hooked up to the leads to compare ?BTW, great video!

author: PA0PBZ
author_rank: Super Contributor
timestamp: August 31, 2018, 05:56:27 pm
content: So it looks like the board is a low Q capacitor. Would be interesting to see what a similar board will look like when populated with the bypass capacitors or even fully populated.

author: schratterulrich
author_rank: Regular Contributor
timestamp: September 05, 2018, 06:50:48 pm
content: I have written a tool to simulate the impedance of plane / cap combinations with irregular shapes. You can find it at leiterplatte.jimdo.com/pdn-sim/. Maybe it can be useful for someone.﻿You can see the effect of combining caps with interplane capacitance with this tool.
Measuring Room & Reference Monitor Speaker Acoustics - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: August 23, 2018, 04:47:09 am
content: Measuring the speaker and room acoustics of Dave's Rokit 6 reference studio monitors.Signal level microphone calibration, getting frequency response and waterfall plots to show the acoustic decay , and the difference with acoustic panels.NOTE: The difference in the "clean" first response and the "messy" subsequent responses is that the first one was left speaker only, and all further ones were with both speakers, so you expect a difference response.
EEVBlogAcademy - Page 1
Forum section: electronics / general

author: Pete F
author_rank: Regular Contributor
timestamp: August 14, 2018, 08:58:00 am
content: I’m interested in learning/refreshing a bit more of the theory + practice and was following through the EEVBlogAcademy videos. However it seems there was only 8 produced, is that correct? I must admit I didn’t really follow the flow of those videos, and the topics seemed to jump around a bit, but I thought the concept was excellent. I also didn’t understand who the presenter was, another David? Does he have his own channel?I like the way Dave covers his theory, a lot of this is just refreshing what I’d formally learnt decades ago, but that was a heck of a long time ago and a lot of it is new to me too. I remember absolutely hating digital theory for example but Dave/David at least makes it bearable.Is there some form of playlist anyone has created that organises all these tutorial style videos into some form of logical sequence, errr, pardon the pun?

author: RoGeorge
author_rank: Super Contributor
timestamp: August 14, 2018, 09:06:50 am
content: In the meantime, you can try these videos, too:https://www.youtube.com/user/w2aewespecially the ones named "Back to Basics".

author: Pete F
author_rank: Regular Contributor
timestamp: August 14, 2018, 11:00:38 am
content: Thanks very much, I’ve seen a few of his videos and he does a good job. It’s probably a bit more basic than I was looking for though.My background was in various areas of electronics at a trade/post-trade level, which is somewhat similar to these Blog Academy videos. Obviously we would go to much greater detail and somebody doesn’t watch a 10 minute video and expect to come out with the same knowledge as something that may have taken us a semester, but the point is both are relatively practical in their approach. I’d like to go back over a lot of that material, refresh and update my knowledge, plus drill down to greater detail if possible without losing the practical perspective.
suggestion for EEVDiscover videos - Page 1
Forum section: electronics / general

author: JPortici
author_rank: Super Contributor
timestamp: April 19, 2017, 11:12:30 am
content: One video i really enjoyed was the one where dave goes in the natural park to torture test a multimeter. I love those kind of places and i am definetly hitting that natural park the day i go to australia for vacation

author: jonovid
author_rank: Super Contributor
timestamp: December 19, 2017, 12:40:16 am
content: suggestion for EEVDiscover videoEEVdiscover Australian computer historythe 1949 CSIRAC Council for Scientific and Industrial Research Automatic Computerat the Melbourne Museum.http://www.ee.unimelb.edu.au/about/the Department of Electrical and Electronic Engineering - Melbourne. history

author: wilfred
author_rank: Super Contributor
timestamp: July 30, 2018, 01:29:12 pm
content: See if Jim Rowe has the prototype EDUC8. I think that would be something to see working.I'd still like to see him interviewed on the Amphour.He's not getting any younger.

author: EEVblog
author_rank: Unknown
timestamp: July 30, 2018, 01:35:39 pm
content: Quote from: wilfred on July 30, 2018, 01:29:12 pmHow old would Jim be now?The ACMS apparently have the original prototype.
-request- thermometer shootout - Page 1
Forum section: electronics / general

author: LaserTazerPhaser
author_rank: Regular Contributor
timestamp: July 29, 2018, 10:34:35 pm
content: dave did a few DMM 'shootouts' were he compared various DMMs of a certain price window, Im requesting the same with thermocouple thermometers. The reasoning is 1. not everybody has thermometer DMM 2. thermometers are quite indispensable 3. there are many (almost too many) to choose fromall should be thermocouple since IR is rather buggy and will simply not work properly if pointed at certain materialssome candidates:6802 IIFluke 52 IIut320Dht-9815gm1312tm-9-2CIm sure there are more but these are quite prevalentI suggest having >>1<< thermocouple buried in sand (or perhaps some other material which will not swing in temperature too rapidly) firmly in place, - the sand raised to some temperature and compare the results of the inexpensive thermometers to say maybe a fluke or keysight DMM thermometer using the same thermocouple by plugging the thermocouple to the various meters
eevBLAB  #43 - Kickstarter Vultures - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: December 27, 2017, 09:53:07 am
content: Dave shows some of the email from "Kickstarter Vultures" he got.Every success crowdfunding campaign will get inundated with emails from companies that are spamming their marketing, fulfillment and manufacturing services etc.Beware of the scammers!

author: chriswebb
author_rank: Unknown
timestamp: December 29, 2017, 12:19:04 am
content: This is the norm for startups that are somewhat successful as well. And god help you if you end up raising money, because they just get more desperate.One other thing they have in these emails I am not sure you touched on is that they usually include a small 1x1 white pixel in them that is associated with a unique URL, so they can see when you view the email if you don't have your client setup to not display images.

author: snoopy
author_rank: Frequent Contributor
timestamp: July 26, 2018, 01:05:58 am
content: This is all of the garbage they teach in those MBA courses that are now usually compulsory just to get a job these days
EEVblog #1109 - Spectrum Analyser Design Walk-through - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: July 23, 2018, 11:15:25 pm
content: A step-by-step walk-though of a typical modern low cost 3GHz "All Digital IF" spectrum Analyser design.

author: JS
author_rank: Frequent Contributor
timestamp: July 24, 2018, 03:05:11 am
content: At the end you mentioned nyquist, but as its already a band pass filter could very well be doing oversampling, and rhe IF being centered at 30MHz or 50MHz makes a ton of sense, as it could be at 10MHz and nyquist it is.. Checking the ADC datasheet should tell how high oversampling can go, usually limited by the sampling time but also the use of decimation and anti aliasing filters.JS
EEVblog2-Blurry font scaling problem - Page 1
Forum section: electronics / general

author: Peabody
author_rank: Super Contributor
timestamp: July 18, 2018, 09:16:17 pm
content: Dave, I just wanted to mention that while the video may look ok at 150% scaling on a 32-inch monitor, everything was impossibly small even at 150% scaling on my 15-inch, 1080P laptop viewed at fullscreen. I don't know what percentage of viewers use laptops, but this experience for us was not very good. I simply couldn't make out anything you were pointing out or doing. Everything was still tiny. I hope you will consider this in any future video involving sceen capture of the desktop or an app's display. Basically, please just preview what the Youtube video looks like on a much smaller screen.Edit: If I'm the only one viewing on a 1080 laptop, then obviously I withdraw my comment. I'm told by fellow Dave watchers in my town that most viewers have 4K now. Didn't know that.

author: rrinker
author_rank: Super Contributor
timestamp: July 19, 2018, 02:01:53 pm
content: On my 24" 1080 display it wasn't like I was reading what was showing on Dave's screen. I was more interested in what he was saying, as I am intimately familiar with the issue since at work I have my laptop plus two external displays that are different physical sizes as well as resolution, so the scaling settings can be great fun. At home I have no such problem, because when I replaced my displays at home, I bought two identical ones, and they are large enough that even my poor vision has no problem with 1080 at 100%. At work I am stuck with what we have sitting around. I wouldn't have even attempted this prior to Windows 10 - despite some issues with older apps as Dave demonstrated, the scaling functionality in Windows 10 is overall quite good.

author: EEVblog
author_rank: Unknown
timestamp: July 19, 2018, 02:18:56 pm
content: Quote from: Peabody on July 18, 2018, 09:16:17 pmIhadto do this video in 4K capture, as that's the entire point of the video, so that you can see the actual real difference.If you don't have a 4K monitor to see that then sorry, but that's just the way it is.I don't normally do 4K captures for this very reason, all my screen captures are normally 1080.It's a single take 2nd channel video, I was not going to put any effort into it.

author: David Hess
author_rank: Super Contributor
timestamp: July 19, 2018, 11:07:09 pm
content: I had a different problem unrelated to Dave's video. Youtube only provides the 4k video in the VP9 codec for which I have no hardware acceleration. Solving this might be possible with a change in OS and graphics driver but I am leery of doing that on old hardware. I have no trouble with 4k60p H.264.
ANSWERED - GTX-1050 vs GTX-1070 4K NVENC GPU Rendering - Page 1
Forum section: electronics / general

author: Fungus
author_rank: Super Contributor
timestamp: July 16, 2018, 11:24:55 am
content: I'm not sure you want toincreaseyour rendering time...PS: Good video. There's far too much voodoo nonsense spread about PC performance. People don't seem to understand the concept of "bottleneck".

author: IanJ
author_rank: Unknown
timestamp: July 16, 2018, 05:45:53 pm
content: Hi all,Just upgraded my PC from a slow GTX570 to a GTX1050TI today on my Win7 Dev PC (a dated i7 4770 4core 1150)Movie Studio Platinum 15.0 rendering a 22min Mp4 @ 1080p 50fps.Before: 1hr 35minsAfter: 18minsUsing NVenc with the 1050TI and GPU encoding enabled (about a minute faster than just the Cpu).Ian.

author: senso
author_rank: Frequent Contributor
timestamp: July 17, 2018, 01:40:04 pm
content: So..How/why is your CPU being hammered and the Video Encode of the GPU is just chilling?.

author: Fungus
author_rank: Super Contributor
timestamp: July 17, 2018, 02:06:34 pm
content: Quote from: senso on July 17, 2018, 01:40:04 pmThe CPU has to decode the raw video files produced by the camera.It's hard work (apparently).

author: senso
author_rank: Frequent Contributor
timestamp: July 17, 2018, 02:36:25 pm
content: That makes sense.

author: Howardlong
author_rank: Super Contributor
timestamp: July 18, 2018, 08:04:16 pm
content: I'm pretty sure I posted some timings on here a view months ago that very much reflect your findings, using a 1050ti, 1070 and 1080.One thing to note,as I'm sure you know, is that as soon as you do any effects, even as simple as text annotations, for that segment all bets are off. For simple cut editing without fancy transitions, PIPs, split screens, or other effects etc, there's no practical difference that I was able to determine.It does also very much depend on the software you're using, something that works well in , say Adobe Premiere might not work well in Vegas and vice versa.Also a setup that works great in 1080p does not mean it'll work well in 4k: the GPU encoders and decoders appear to be optimised for certain standard definitions in my experience.
Forum missing flag image (00.png) - Page 1
Forum section: electronics / general

author: Nominal Animal
author_rank: Super Contributor
timestamp: July 06, 2018, 10:09:54 pm
content: Those who have selected no country of origin, will show/forum/Themes/default/images/flags/00.pngas their flag. Because it does not exist, 00 is shown instead.Feel free to use the attached 116-byte, 16x11 transparent PNG image with a 4-pixel black dash in the center (), instead.(It was created in Gimp, and fixed using NetPBM tools. I dedicate it to public domain.)
EEVBLOG - Lab Power Supply and a Video Suggestion - Page 1
Forum section: electronics / general

author: Docara
author_rank: Regular Contributor
timestamp: June 30, 2018, 10:16:29 am
content: Hi Dave,Just watched your Lab Power Supply series on Youtube and absolutely loved it and was very impressed with your thought process and lateral thinking.I left electronics over 20years ago and just started to pop my head back up (shit things have moved on !!!), so videos like this really reinforce or remind me of forgotten techniques together with teaching me new ones - thank you.SuggestionI am going to ask a specific question on the forum but for a wider audience my request is for tutorials on terminology and the 'translating' decoding and of extracting pertinent information from Datasheets.Let me give you an example which is relevant to me. I would like to use Maxim's 1-wire devices in a hobbyist project for I'm working on. I need to communicate over (approx) 20m using so I will need to use the DS2480b to help with the transmission length and conditioning and to ease the pain of implementing a search algorithm.Three DS18b20 Temperature sensors, 1xDS2413 or 1xDS2408 (dual or octal PIO Switch) and probably a RTCC and EErom of some sort are required.Unless you know how to do this I challenge you to get a picture in your mind how to implement this system to search for new devices based on the info across the relevant DatasheetsThe closest I have come to is this vidbut he glosses over the important bits and uses Arduino libraries which I dont want to use.ThanksMatt
Forum Software Bugs? - Page 1
Forum section: electronics / general

author: westfw
author_rank: Super Contributor
timestamp: July 19, 2018, 12:08:07 am
content: I have a couple of consistent problems with the forum software:1) "preview" a post or copying from an existing posting results in changing the appearance, especially with respect to quoting and code inclusions2) "code" segments regularly (but randomly?) lose some of their newlines...Anyone else ? Anyone have solutions?

author: tautech
author_rank: Super Contributor
timestamp: July 24, 2018, 08:00:25 pm
content: There are many bugs in SMF SW.Quoting from another thread is best done by Quoting that post there and Copying all the content (links too) and Pasting it into your post.Hope that helps.

author: Brumby
author_rank: Unknown
timestamp: July 25, 2018, 12:44:44 am
content: Quote from: tautech on July 24, 2018, 08:00:25 pmYep. This is what I have done for some years now.
New 4k Camera test footage - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: June 11, 2018, 11:14:16 am
content: I just got a new 4k camera, a Sony HXR-NX80.I uploaded 4k footage, 1080p footage in both XAVC S and AVCHD and my original Canon HF G30:All shot with my usual lights and shooting conditions, direct upload, no processing.4K:1080P60 XAVCS1080P60 AVCHDCanon HF G30 1080P50 AVCHD

author: TiN
author_rank: Super Contributor
timestamp: June 15, 2018, 04:13:12 am
content: Looks good.Any particular reason why you went with NX80?

author: NiHaoMike
author_rank: Super Contributor
timestamp: June 15, 2018, 04:59:57 am
content: Any reason for going with a camera with a permanently attached lens instead of something like a GH5s with user replaceable lenses? Is the ability to change lenses not particularly useful for your uses?One 4K camera I find really neat is the new Blackmagic that's supposed to come out soon. In particular how it supports recording directly to an external SSD.

author: EEVblog
author_rank: Unknown
timestamp: June 15, 2018, 05:26:56 am
content: Quote from: NiHaoMike on June 15, 2018, 04:59:57 amCorrect.That and the fact that video cameras are just more usable in almost every aspect compared to DSLR's. There are many reasons why videos cameras still exist and are used by almost everyone who shoots video professionally on a daily basis.

author: EEVblog
author_rank: Unknown
timestamp: June 15, 2018, 05:30:30 am
content: Quote from: TiN on June 15, 2018, 04:13:12 amQuality in-built micon top. Easy last scene review. Removable XLR rig. 60Mbps 4K mode (lower the better for my use). Stupidly fast autofocus. And a whole host of other small reasons.

author: larsdenmark
author_rank: Regular Contributor
timestamp: June 15, 2018, 09:57:50 am
content: It looks great!How do make room for the camera when shooting overhead videos like this? There can hardly be any room for yourself ;-)

author: MT
author_rank: Super Contributor
timestamp: June 15, 2018, 02:53:35 pm
content: Video ok but audio is left tilted with pan pumping effects to center/right, something thats tiresome with headphonesin both Q1 videos. Proper external wide stereo mike will solve that i suppose.

author: schmitt trigger
author_rank: Super Contributor
timestamp: June 15, 2018, 03:37:42 pm
content: What has really saved Sony from oblivion is its professional video business, specifically the cameras. They are simply top notch.
EEVblog #1094 - Casio FX260 Solar II Calculator Experiments - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: June 09, 2018, 02:37:19 am
content: Some experiments on the Casio FX260 Solar II scientific calculator.Improving the solar capacity, trying out a Tritium nuclear battery!, current measurement, and probing of the PCB and LCD signals.BONUS FX991EX Teardown and soldering iron burn!

author: max666
author_rank: Frequent Contributor
timestamp: June 09, 2018, 07:11:00 am
content: If we're talking tantalum and super cap, isn't going overboard on capacitance detrimental to low light performance, due to higher leakage current of the cap?

author: EEVblog
author_rank: Unknown
timestamp: June 09, 2018, 10:02:17 am
content: Quote from: max666 on June 09, 2018, 07:11:00 amCould be in theory, but tantalum leakage is in the order of a uA or less. Niobium oxide is usually slightly higher.Operational current was measured at 30 times that, so should be fairly negligible. Closer margin in lower light, but I don't think it'd be a problem. Worth checking though.

author: Fungus
author_rank: Super Contributor
timestamp: June 09, 2018, 10:55:31 am
content: Does it still charge the cap when it's switched off?Turn-on delay will be zero if so.
How do I add an avatar? - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: June 04, 2018, 04:57:58 pm
content: I have clicked on every option in profile and home and settings. Can't seem to find it. Also this was as close to a site specific forum as I could find to post questions about the eevblog forum..

author: tek2232
author_rank: Contributor
timestamp: June 04, 2018, 05:07:12 pm
content: I think it is Profile Info and then Modify profile.

author: Brumby
author_rank: Unknown
timestamp: June 05, 2018, 01:18:34 am
content: Hoverover "Profile" (don't click) and a window will pop up. One of the options in that window is "Forum profile". Click on that.

author: Beamin
author_rank: Super Contributor
timestamp: June 05, 2018, 01:59:43 pm
content: For some reason the hover over function wasn't working until I restarted my browser. Strange I knew it was something simple
eevBLAB #47 - Youtube Are Watching You - Page 1
Forum section: electronics / general

author: ebastler
author_rank: Super Contributor
timestamp: May 30, 2018, 08:04:30 pm
content: @Dave -- I just had a quick glance at the HTML source of your blog page, looking for the new "nocookie" version of the Youtube links.Now that you have realized how Youtube shamelessly tracks users of your page, even if they don't play the videos -- do I see correctly that you STILL have not switched to the "privacy enhanced" links?! Would you mind...?

author: ChunkyPastaSauce
author_rank: Unknown
timestamp: May 30, 2018, 08:27:18 pm
content: Maybe someone has made a privacy browser plugin or script to replace all youtube urls with the no-cookie versions?