This cant be right ? - Page 1
Forum section: electronics / general

author: blaklite
author_rank: Newbie
timestamp: June 21, 2016, 10:41:49 pm
content: I bought myself a FrSky DHT module, which arrived today.Knowing that I will have to be making some mods to it I took it out of its shrink wrap, but to my dismay I noticed what I thought was a tombstoned cap =(Pulling out my trusty usb magnifier, to my amazement, at position C63 I saw this abomination ...Anyone else seen similar? will it still work =) we are yet to see...

author: rx8pilot
author_rank: Super Contributor
timestamp: June 21, 2016, 10:56:02 pm
content: That is a work of art. I have stacked caps during prototyping, but that looks like a blind monkey soldered it.Sent from my horrible mobile....

author: Brumby
author_rank: Unknown
timestamp: June 22, 2016, 12:03:57 am
content: O.....K.....Interesting..... I think.

author: wraper
author_rank: Unknown
timestamp: June 22, 2016, 12:15:07 am
content: This is not thombstoned cap (when SMD part lifts vertically and only one terminal is soldered). This is an orgy of 3 caps on top of each other soldered by filthy soldering iron.

author: TerraHertz
author_rank: Super Contributor
timestamp: June 22, 2016, 12:55:40 am
content: It's nice of them to pour that clear goop over it all, so there's no risk of the dirty flux wearing off. Perhaps they thought that would make the stack-o-caps less likely to break off?My next question is why do people post photos on eevblog by hosting them on sites like photobucket, when eevblog has permanent photo-hosting built in?And why my usual browser is blocking content likehttp://i158.photobucket.com/albums/t104/BLaKLiTe/shared/module_zpslxzdenlz.jpg,so I don't see these pics at all unless I switch to another browser.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: June 22, 2016, 12:59:18 am
content: FrSky stuff usually works, but they achieve a price point that is generally well below the leading vendors in their field. Do you think they do that by magic?

author: ez24
author_rank: Super Contributor
timestamp: June 22, 2016, 01:07:46 am
content: Quote from: TerraHertz on June 22, 2016, 12:55:40 amThey do not know any better. It should always be pointed out to them when they do not host on eevblog.

author: blaklite
author_rank: Newbie
timestamp: June 22, 2016, 08:20:52 am
content: @ez24 @TerraHertzBecause smart arses should learn to keep their bright ideas to themselves.What was a light hearted look at some stoopid soldering, now becomes a pissing match about image hosting..ffs

author: Psi
author_rank: Super Contributor
timestamp: June 22, 2016, 08:44:00 am
content: Obviously three 1nf caps was cheaper than one 3nf cap on the production day

author: CatalinaWOW
author_rank: Super Contributor
timestamp: June 22, 2016, 05:25:09 pm
content: Or there was a delivery schedule and they had 1s on hand and no 3s available for 6 weeks. Or the guy who gets them past some customs agent has a brother in law with a warehouse full of 1s. Lots of possible reasons for this, and while it isn't perfect it meets a need.

author: suicidaleggroll
author_rank: Super Contributor
timestamp: June 22, 2016, 06:25:31 pm
content: Quote from: TerraHertz on June 22, 2016, 12:55:40 amQuote from: ez24 on June 22, 2016, 01:07:46 amOr this isn't the only place they're posting it and want to kill two birds with one stone...

author: ez24
author_rank: Super Contributor
timestamp: June 22, 2016, 07:54:02 pm
content: Quote from: suicidaleggroll on June 22, 2016, 06:25:31 pmI see

author: Delta
author_rank: Super Contributor
timestamp: June 24, 2016, 06:25:16 am
content: What does DHT mean? Dead High Tension? (above EHT)

author: janekm
author_rank: Unknown
timestamp: June 24, 2016, 10:05:58 am
content: Quote from: CatalinaWOW on June 22, 2016, 05:25:09 pmNone of those are very plausible reasons (plenty of stock in Shenzhen), the only thing I could imagine is that they found they needed really low ESR / inductance (after all there seems to be another footprint for a larger sized cap right next to it, so why wasn't that one used?).

author: XOIIO
author_rank: Super Contributor
timestamp: June 24, 2016, 12:46:34 pm
content: Quote from: TerraHertz on June 22, 2016, 12:55:40 amWhen I've tried previously I get a size exceeded limit, plus, why not offload the work to another server and save eevblog's servers the work, even if it is negligible.

author: TerraHertz
author_rank: Super Contributor
timestamp: June 24, 2016, 03:02:07 pm
content: Quote from: XOIIO on June 24, 2016, 12:46:34 pmSo learn to resize photos. Not like it's hard. Try Irfanview, it's freeware and very good.http://www.irfanview.com/QuoteMultiple reasons. Primarily because when they are on a different site, notoriously that means they will become unavailable at some future time and from then on they are missing in the thread.Another reason is, like I mentioned happens for me, sometimes particular servers are blocked. I think I might have put photobucket in my block IP list as a result of some obnoxious advertising, so this thread has no pics unless I switch browsers. And I couldn't be bothered checking.Besides, you say you care about eevblog server load, but you don't bother resizing pics down to a sensible filesize, so apparently don't care about download/bandwith costs of all the readers who end up seeing your pics.

author: ez24
author_rank: Super Contributor
timestamp: June 24, 2016, 08:17:07 pm
content: QuoteThis is a hard concept for people. They buy a camera because if has a bigger image, so they think bigger is better. I hosted a site for a friend and she never could understand this. In the end I had to take her site down because she kept uploading 4 meg pictures and my server size limit max'd out.Too bad this is so hard to get across to people. I gave up on Wordpress because it kept every size and copy on the server. So towards the end she would upload a 4 meg picture and go through 6 resizes and the picture would end up taking 20 megs! She never could understand the concept.Someday I will go for Joomla because I understand it can limit the upload size to what I want.There are websites that will resize so no software is needed. FYI I use Faststone

author: timb
author_rank: Super Contributor
timestamp: June 25, 2016, 01:31:44 am
content: Quote from: ez24 on June 24, 2016, 08:17:07 pmYou can set Wordpress to delete the copies if you want. There's even a few good photo management plugins out there.

author: ZeTeX
author_rank: Frequent Contributor
timestamp: June 25, 2016, 09:51:28 am
content: Before I saw that those are just capacitors I taught this is literally some kind of monster, no joking, took me a few seconds to understand those are capacitor, it looks like microwaved zombie

author: cimmo
author_rank: Frequent Contributor
timestamp: June 29, 2016, 05:39:00 am
content: Quote from: blaklite on June 22, 2016, 08:20:52 amNope, there ARE practical reasons why the OP's choice wasn't optimum. When photobucket is down - as it is right now, then the images just aren't available.Putting things in the one place makes a lot of sense.

author: VK3DRB
author_rank: Super Contributor
timestamp: June 30, 2016, 10:24:47 am
content: None of you know anything about electronics. A blind monkey knows stacking the capacitors is part of a tuned circuit where if the sides are high enough, they will short out to the metal case making the entire thing radiate microwave energy at 1.21 jiggerwatts, drawing power from the stack of fux capacitors.Seriously, I did find that comment earlier on that it looked like it was soldered by a blind monkey hilarious. I will use that on a few colleagues in jest at the appropriate time."You code looks like it was written by a blind monkey""What, did you outsource your soldering to a blind monkey?""A blind monkey can see I deserve a pay rise""A blind monkey could run this company better than you do."Using the last one might be CLM (career limiting move).

author: FireFlower
author_rank: Regular Contributor
timestamp: June 30, 2016, 08:22:17 pm
content: Looks delicious, abit more flux on the top and it would be just goo pile

author: XOIIO
author_rank: Super Contributor
timestamp: July 02, 2016, 08:48:03 pm
content: @terrahertz and @ez24 are you kidding?No shit it's not hard to resize a picture, but it is more effort than just uploading it to a site and copying the embed code. What's the big issue you take up with this anyways? Aside from the fact that reducing the size will usually reduce the quality.Did some bad man do bad things to you because you used imgur and now you have flashbacks because people don't upload to the forum or something?

author: helius
author_rank: Super Contributor
timestamp: July 02, 2016, 08:59:00 pm
content: Ad hominem much?

author: XOIIO
author_rank: Super Contributor
timestamp: July 02, 2016, 09:02:54 pm
content: Quote from: helius on July 02, 2016, 08:59:00 pmConsidering they started with "learn to resize pictures" and "it's a hard concept for people", if they are going to start talking derogatorily to people they can expect it back.

author: helius
author_rank: Super Contributor
timestamp: July 02, 2016, 09:05:38 pm
content: It's not about insulting people, it's about arguing from irrelevant points. Psychoanalyzing people because you have a different position could not ever be relevant to the subject.

author: XOIIO
author_rank: Super Contributor
timestamp: July 02, 2016, 09:08:59 pm
content: Quote from: helius on July 02, 2016, 09:05:38 pmWell if a civil tone had been kept throughout I wouldn't have any trouble being civil, but apparently they just couldn't help but talk down to people who don't follow what they do.

author: chris_leyson
author_rank: Super Contributor
timestamp: July 02, 2016, 09:17:43 pm
content: The two lower capacitors look like they are COG/NPO because they are pink in colour, the one on the top maybe an X7R or similar dielectric because it's brown in colour, it might be for tuning or decoupling depends where it is in the circuit. It's not often you see modifications like this on production PCBs unless it's low volume product or it's cheaper than respinning the board design.Once a colleague of mine who's job it was to lay out PCBs told me about the teepee or wigwam mod where there were two SMD components in series arranged as a triangle, he must have seen the look of disbelief on my face because the teepee mod was followed by "and there was the Stonehenge mod" three components in series, well I guess it saves on board space

author: Howardlong
author_rank: Super Contributor
timestamp: July 02, 2016, 10:02:25 pm
content: Quote from: TerraHertz on June 22, 2016, 12:55:40 amQuite easy, 95% of the time I post from an iThing, and eevblog doesn't seem to accept pictures directly from such devices, or at least not that I have been able to figure out.So I upload to Photobucket direct from the iDevice that I took the picture with, and paste the link. In my experience, only a lower resolution version is embedded. If you click to look at the original image in photobucket and then download you get the original resolution.If your browser, or other infrastructure, chooses to block embedded photobucket images then that isn't a content provider problem. I know photobucket isn't great, but it is, so far, the path of least resistance that I've found to get content to forums from a mobile device.If anyone has other suggestions, I'd be delighted to hear them, because frankly photobucket sucks as a content provision service, but it sucks slightly less than anything else I've tried!

author: chris_leyson
author_rank: Super Contributor
timestamp: July 02, 2016, 10:43:13 pm
content: I cut and paste into Microsoft Paint to resize and then save as PNG, easy.

author: Howardlong
author_rank: Super Contributor
timestamp: July 03, 2016, 12:26:32 am
content: Quote from: chris_leyson on July 02, 2016, 10:43:13 pmBut you also had to get the picture onto your PC first which is a PITA.Sure, it's not hard, but it all takes time. The more steps, the longer it takes. It is somewhat bizarre that something as apparently simple as taking a picture and getting it into a forum takes so many manual steps. This is not a criticism of EEVblog, more a general comment on all forums.This should be a simple one step task these days.

author: chris_leyson
author_rank: Super Contributor
timestamp: July 03, 2016, 12:35:37 am
content: QuoteMaybe mouse over right click and save as, depends on your operating system maybe. Designing PCBs in 3D is more of a PITA, it takes a lot more mouse navigation and clicks and swapping between design packages, but that's my job. Meant that in Uncle Buck context rather than Conway Twitty

author: chris_leyson
author_rank: Super Contributor
timestamp: July 03, 2016, 01:35:51 am
content: QuoteI can see what you saying and maybe I said the same thing in a different context, a mouse over and right click should bring up a menu that you need in the given context rather than what some software developer thinks you need. Image processing should be easier. EDA tools should be easier as well, take Orcad PCB for example, to change a via size you have to edit the constraints options for vias then right click, delete via, right click, add connection, right click add via, what the hell happened to right click and select via ?

author: zapta
author_rank: Super Contributor
timestamp: July 03, 2016, 01:36:20 am
content: Quote from: ez24 on June 22, 2016, 01:07:46 amWe know that it's easier to upload to let's say imgur than eevblog. IIRC Dave is OK with it.

author: XOIIO
author_rank: Super Contributor
timestamp: July 03, 2016, 01:42:04 am
content: Quote from: zapta on July 03, 2016, 01:36:20 amI can't see why he would even have an issue with it. If anything it takes the load off of his servers and also fills up space elsewhere.

author: Brumby
author_rank: Unknown
timestamp: July 03, 2016, 01:44:43 am
content: Quote from: chris_leyson on July 02, 2016, 09:17:43 pmI just can't get the mental image of a Stonehenge mod out of my head.I love it.Now ... here's a question: Can anybody think of a circuit where a Stonehenge component layout would haveoperationalmerit?

author: XOIIO
author_rank: Super Contributor
timestamp: July 03, 2016, 01:49:35 am
content: Quote from: Brumby on July 03, 2016, 01:44:43 amRF stuff.There has to be one somewhere in the voodo world of RF stuff.

author: Brumby
author_rank: Unknown
timestamp: July 03, 2016, 02:25:45 am
content: Yes - my mind went straight to RF too, but not beingau faitwith RF voodoo I could not venture any thoughts on the matter.I still like the idea, though.I'm sure we could come up with some gimmick circuits, though - or maybe just do a complete sculpture of Stonehenge on a board for the fun of it.....

author: Brumby
author_rank: Unknown
timestamp: July 03, 2016, 02:27:55 am
content: Next would be Manhattan.

author: Howardlong
author_rank: Super Contributor
timestamp: July 03, 2016, 07:14:05 am
content: Without seeing it in context of the other parts around it it's not possible to say if this is some kind of RF specific hack, but from what I see I doubt it is.