hybridfree/eevblog-posts huggingface dataset:
(Unintentional) Comedy in data sheets - Page 1
Forum section: electronics / general

author: AndyC_772
author_rank: Super Contributor
timestamp: November 23, 2021, 11:37:22 am
content: Just spotted this buried in the reference manual for an STM32 microcontroller:"It must be used only if the product supply voltage is below 2.5 V.Setting this bit when VDD is higher than 2.5 V might be destructive"I couldn't help but chuckle. Anyone else spotted anything in a data sheet that was meant to be funny, or wasn't meant to be but was anyway?

author: Yansi
author_rank: Super Contributor
timestamp: November 23, 2021, 11:41:20 am
content: I do not see anything funny about it.Better tell us which datahseet and where have you seen it.

author: mzzj
author_rank: Super Contributor
timestamp: November 23, 2021, 11:57:45 am
content: Quote from: Yansi on November 23, 2021, 11:41:20 amhttps://comm.eefocus.com/media/download/index/id-1014214

author: HwAoRrDk
author_rank: Super Contributor
timestamp: November 23, 2021, 12:02:35 pm
content: Face colour is what now??

author: penfold
author_rank: Frequent Contributor
timestamp: November 23, 2021, 12:06:29 pm
content: In theLM339 datasheet, page 14 near the bottom...QuoteIt's the only time I've seen such a recommendation, made me chuckle to think of the number of support requests of "your comparator is rubbish, it only works for a millisecond after I switch it on, then nothing" before they decided to update the datasheet.

author: SiliconWizard
author_rank: Super Contributor
timestamp: November 23, 2021, 06:43:01 pm
content: We probably all have a different sense of what funny is.

author: Terry Bites
author_rank: Super Contributor
timestamp: November 23, 2021, 09:14:47 pm
content: All datasheets have WTF in there somewhere. No laughing matter.Here's a few infantile lav joke companies.Every datasheet's a winner here:www.fart-neon.com/en/products-power/products/The foward slash is a recent edition - their original website had a locations drop down "fart all over the world"SeeThen there'swww.sick.com(something to do with pricing I believe) and the classic Bulgin knob catalogue. Sadly out of print. For uk, kiwis and aussies-www.waynekerrtest.combased in Bognor, where else?

author: thm_w
author_rank: Super Contributor
timestamp: November 23, 2021, 09:55:23 pm
content: Quote from: mzzj on November 23, 2021, 11:57:45 amFunction is HAL_SYSCFG_EnableIOSpeedOptimize ( * @brief To Enable optimize the I/O speed when the product voltage is low.)Which leads us to SET_BIT(SYSCFG->CCCSR, SYSCFG_CCCSR_HSLV);I guess its driving extra current into the IO? Maybe bypassing a series resistance on the pin?So presumably at 3.3V it could burn something out.
Looking to isolate a pin in a header - Page 1
Forum section: electronics / general

author: jamiec
author_rank: Contributor
timestamp: November 19, 2021, 06:51:02 am
content: Hi,I am doing a mod on an NES Kiosk and I am needing to isolate a couple of pins from the connectors.There is 16 72-pin connectors and I would love to find a way to isolate a couple of pins without having to desolder every one of them. I cannot cut the pins as I cannot gain access to underneath the connector, I also cannot just de-solder 1 pin and slide it out the connector as they are pushed in from the bottom. Also the traces are top side and I really want to avoid cutting them.The holes do have some space around them but not enough for heat shrink tubing.Does anyone have any tips?I have included a photo of the pin I am looking to isolate.

author: tggzzz
author_rank: Super Contributor
timestamp: November 19, 2021, 11:17:18 am
content: Custom extender PCB, with jumpers to cut/make connections.

author: nctnico
author_rank: Super Contributor
timestamp: November 19, 2021, 11:24:54 am
content: What do the connectors look like at the other side? If they are card edge slots, then you can use polyimide (kapton) tape to isolate one of more fingers.

author: Gyro
author_rank: Super Contributor
timestamp: November 19, 2021, 12:02:41 pm
content: I have some small bits of thin walled heat resistant translucent sleeving that is slim enough to fit between connector pins and 1mm holes. No idea where I got them, but it must be available somewhere.

author: nctnico
author_rank: Super Contributor
timestamp: November 19, 2021, 03:26:18 pm
content: Quote from: Gyro on November 19, 2021, 12:02:41 pmSomething like this:https://paramounttube.com/kapton-tube-polyimide-tubing/. First hit from Google looking for 'kapton sleeving'. 'Polyimide Tubing' likely results in even more hits.

author: t1d
author_rank: Super Contributor
timestamp: November 20, 2021, 08:15:04 am
content: Quote from: Gyro on November 19, 2021, 12:02:41 pmAlong with this suggestion, there are tools called "Hollow Needles." They are tubes that fit over the pin and into the pad hole. Reflow the solder, while it is still molten, insert the pin to break the solder joint. Test for continuity and add the heat shrink over the pin.Here is an example:https://www.amazon.com/Tegg-Non-Wetting-Desoldering-Dismantling-Maintenance/dp/B07JF9BJCY/ref=sr_1_2?keywords=pin+desoldering+tubes&qid=1637395873&sr=8-2
SOT 23-5 identification Help required. - Page 1
Forum section: electronics / general

author: amiloduk
author_rank: Newbie
timestamp: November 16, 2021, 09:22:32 pm
content: Hi, I have a SOT23-5 SMD chip I'm trying to identify any help would be greatly appreciated.It is an S10BLY Sot 23-5 I think is a boost converter but am not sure, to be honest here are some pics of it and the circuit it's in.

author: amyk
author_rank: Super Contributor
timestamp: November 17, 2021, 01:16:56 am
content: APS2415?
The Ubiquitous Accuracy vs. Stability Plots - Page 1
Forum section: electronics / general

author: metrologist
author_rank: Super Contributor
timestamp: November 17, 2021, 03:25:29 pm
content: I've seen these around and noticed our marketing group using them in a presentation. For now it's internal, but I see some of the content will be targeted for public release. How embarrassing is it to use these plots? I'm really just seeking confirmation. I would not use them, but would need some motivation to force a change here.It's the plots on NIST, and I found them in an earlier publication from Carlton University. They are sprinkled around so much I'm sure there is no copyright protection.https://www.nist.gov/pml/time-and-frequency-division/popular-links/time-frequency-zThanks

author: metrologist
author_rank: Super Contributor
timestamp: November 18, 2021, 12:18:17 am
content: You guys are exactly right. I needed a few moments to myself and the answer would be clear, so I'm directing them to make something different!
OrCAD Automatic Footprint and Symbol Download Feature - Page 1
Forum section: electronics / general

author: dezagha30
author_rank: Newbie
timestamp: November 15, 2021, 08:51:38 pm
content: Hi Everyone,I just wondering if anyone here uses OrCAD for PCB design and if so would you find it beneficial if Cadence or someone else made a feature that would automatically download component CAD files like symbols and footprints and insert them into you library instead of you manually downloading and importing the CAD file from Ultralibrarian or Octopart?I'm planning on building out this software, if there is enough interest

author: Just_another_Dave
author_rank: Regular Contributor
timestamp: November 15, 2021, 09:01:22 pm
content: Component search engine has an application similar to the one that you describe (it imports the footprint and schematic symbol of a component automatically) and it reduces a lot of repetitive work. However, some of them have mistakes, so it should be used carefullyYou can find it here:https://componentsearchengine.com/

author: dezagha30
author_rank: Newbie
timestamp: November 16, 2021, 09:15:21 pm
content: Thanks for sharing the site. What I am describing will integrate with OrCAD specifically but component search engine seems like a good place to source component on the back end of the application

author: nctnico
author_rank: Super Contributor
timestamp: November 16, 2021, 09:41:32 pm
content: There is a similar thread in the EDA section already!
Commodore DAC-612 calculator from 1969 - Page 1
Forum section: electronics / general

author: VK3DRB
author_rank: Super Contributor
timestamp: November 15, 2021, 12:23:10 pm
content: What a remarkable calculator. I thought Commodore started with the Commodore 64 kiddies in the early 80's but I was surprised they go back to 1958.That calculator is super fast for its time because it is all hardware based. The many calculators appearing in the 70's, like my scientific Farad-808 (I bought it in 1976, but its TI CPU goes back to around 1974, and the calculator is still used it on my desk today) used machine language firmware to make calculations and so was noticeably much slower a lot more more powerful. The method of doing the root of a number in those calculators was pure genius.The multiplication bug could be pretty easily debugged if the author got a schematic, tracing out the circuit would take a lot more work. I would put my hand up to debug it for free if I got a schematic.The HD3112 chip details are here. Quite advanced for 1969...http://madrona.ca/e/eec/ics/serialadders.html

author: Haenk
author_rank: Super Contributor
timestamp: November 16, 2021, 12:23:24 pm
content: Commodore did not build these machines, it's a rebadged Casio 122.I'm not sure, when they really started making their own machines, might be as late as the first MOSTEK-based devices.
Nikon battery mating contacts - anyone know what they are? - Page 1
Forum section: electronics / general

author: VK3DRB
author_rank: Super Contributor
timestamp: November 15, 2021, 03:36:36 am
content: Hi.I am designing a battery powered product that will use an external charger and Li-Ion or Li-Po batteries (preferably about 7V, 2Ah). Low volume, so I am considering piggybacking off the Nikon camera battery which ticks all the boxes.I have having a real difficult time finding the mating PCB mount contact block for a standard 7V Nikon battery EN-EL15.There are five contacts, each 2mm apart. The mating contacts look like blade types as shown in one of the images.I know manufacturers in China use these blade type connectors in their aftermarket Nikon battery chargers. But I cannot find any info on the connector.Does any body know where I can source where I can source these blade type connectors (in the charger, not in the battery) and what the part number is?Any help greatly appreciated.cheers,Dave

author: amyk
author_rank: Super Contributor
timestamp: November 15, 2021, 04:57:17 am
content: Looks like they are just called "blade type battery connector". There's 2mm and 2.5mm pitches.https://www.alibaba.com/product-detail/MISTA-5Pin-pitch-2-0mm-Laptop_62024908878.html

author: VK3DRB
author_rank: Super Contributor
timestamp: November 15, 2021, 05:27:48 am
content: Wow thanks! That is a start. I will contact them about a 5-pin version of "SMT battery connector", although a pin-through hole version is not out of the question. Maybe get a drawing and get some samples in. This battery connector does not have locating protrusions at each end.If it goes well, I owe you a beer.
Sam DLP TV: “No Input Devices…” - Page 1
Forum section: electronics / general

author: iXod
author_rank: Frequent Contributor
timestamp: November 15, 2021, 04:51:07 am
content: Samsung HLS5087 DLP TV was working just fine for years. After being unused (but not unplugged) for 4 days, it now won’t show Over The Air signals (just snow—yes, analog snow) or HDMI sources. When I press the Input Select, it displays this: “No input devices connected,” although my standard HDMI devices are connected (same cables, same devices, same ports).Although this problem isn’t a problem with HDMI cables or sources (I’m not getting OTA signal either), I swapped HDMI cables and checked for loose connections. Also unplugged mains power for an hour. No joy.What is strange is that until today, if no inputs were connected, the TV would show solid black screen and would rotate between the inputs, displaying the channel number; or “HDMI1”; or “HDMI2”. In the years I’ve owned this TV it has never displayed the “No input devices…” message.I entered Service Mode and selected Factory Reset. No joy.Anybody experienced this message on their Samsung TV before?And please, no hate for DLP.Thanks.
Chipageddon, Digikey, and ADI - Page 1
Forum section: electronics / general

author: jrs45
author_rank: Regular Contributor
timestamp: November 22, 2021, 05:08:40 pm
content: I placed an order for some ADI DSP's back in May, with a promised delivery date in September.September comes and goes, I ask DK "what's up? I haven't heard anything!""OH, YOUR PARTS ARE DELAYED UNTILQ4 2023. BUT IF YOU ANSWER THIS LIST OF QUESTIONS ABOUT HOW IMPORTANT THESE ARE TO YOU, AND WHAT YOUR APPLICATION IS, AND MAYBE PAY MORE, WE'LL SEE WHAT WE CAN DO"How is this possibly an acceptable business practice? Did DK or ADI sell them out from under me? Now I have to beg and plead to reduce their 2.5year leadtime, when I was promised 4 months?I'm pretty pissed about all this, and am unsure if I should be more pissed at DK or ADI./rant

author: thm_w
author_rank: Super Contributor
timestamp: November 22, 2021, 10:16:49 pm
content: I doubt DK is to blame here, they probably just went off the numbers given to them from ADI.Then either someone bought them out from under you, as you say, or they weren't able to make them due to increased IC manufacturing demand.Whats the part number?

author: ANTALIFE
author_rank: Frequent Contributor
timestamp: November 23, 2021, 12:10:10 am
content: Oof that's a crappy situation to be in... Might be worth having a look on netCOMPONENTS if you want stock soonerhttps://www.netcomponents.com/

author: jrs45
author_rank: Regular Contributor
timestamp: November 23, 2021, 05:46:04 pm
content: Quote from: thm_w on November 22, 2021, 10:16:49 pmThanks. ADAU1451/2 or equivalent (full speed version). This is probably ADI shenanigans.

author: eti
author_rank: Super Contributor
timestamp: November 24, 2021, 05:53:04 am
content: Chips-a’geddon harder to find 😛
Anyone built the Wharton LED clock from SDG Electronics? - Page 1
Forum section: electronics / general

author: killingtime
author_rank: Regular Contributor
timestamp: November 14, 2021, 08:47:05 pm
content: Hi,I came across the project below from a YT blogger. He's designed and built his own Wharton style LED clock w/WIFI time sync. YT vid in the link.https://sdgelectronics.co.uk/wharton/He's offered the build files for use with JLCPCB so others can make their own. All but 2 components are assembled by JLCPCB if you upload the BOM. You need to add an ESP32 and a light sensor. The cost for 5 assembled w/delivery to the UK comes to 35GBP ea, but you have to add the above components to that and program the ESP32. Source supplied as well. Add a box with perspex...PSU...Just wondering if anyone has done it.He's made one with a matrix display as well, but I cannot find the build files, so the above clock is the one without the matrix display.It uses the ESP32 to connect to your WiFi AP/Router. Presumably that means you have to re-program the ESP32 when you change the router ssid/username/password.Interesting project.Regards.
What's all this Kammagottsa stuff, anyway? - Page 1
Forum section: electronics / general

author: dr_when
author_rank: Newbie
timestamp: November 10, 2021, 04:22:40 pm
content: Dave uses the line "this sh#t has gone Kommagottsa" or something to that affect. It always drives me nuts because I cannot think of what that might reference (Star Trek?). If he means Komagata (Maru)... then I don't get it. Splain?

author: pqass
author_rank: Super Contributor
timestamp: November 10, 2021, 04:26:17 pm
content: Scroll down on this page:https://www.dictionary.com/browse/gutser

author: noidea
author_rank: Unknown
timestamp: November 10, 2021, 04:31:14 pm
content: You need to understand how we speak in Straya, he is saying "come a gutsa/gutser"https://www.urbandictionary.com/define.php?term=come-a-gutsa

author: dr_when
author_rank: Newbie
timestamp: November 10, 2021, 04:42:28 pm
content: Well, I'll be darned. Would not have guessed it was an Aussie thing.. but then again...Thanks! Now I can use it safely in mixed company

author: pqass
author_rank: Super Contributor
timestamp: November 10, 2021, 04:56:22 pm
content: Be on your guard. These easygoing 'strayans will get you in a heap of trouble. Especially the last one.https://www.buzzfeed.com/bradesposito/outrageous-words-that-are-said-every-day-in-australia

author: langwadt
author_rank: Super Contributor
timestamp: November 10, 2021, 05:21:33 pm
content: https://youtu.be/DHQRZXM-4xI

author: eti
author_rank: Super Contributor
timestamp: November 10, 2021, 05:37:38 pm
content: “Come a gutsa” is colloquial slang for “come a cropper” (slang from here in England), I’d think. It means you’ve slipped up, made a mistake or something has turned out not as expected, usually in the negative . Yeah, English is a weird language, but I’ll give my Ozzie brothers one thing - at least they can speak PROPER English, unlike our other cousins

author: Sal Ammoniac
author_rank: Super Contributor
timestamp: November 10, 2021, 08:37:16 pm
content: Damn, what a disappointment. I thought I was going to see a post in the style of Bob Pease...

author: basinstreetdesign
author_rank: Frequent Contributor
timestamp: November 11, 2021, 02:13:23 am
content: Quote from: eti on November 10, 2021, 05:37:38 pmAnd which other cousins would that be, pray tell.

author: AlfBaz
author_rank: Super Contributor
timestamp: November 11, 2021, 02:27:19 am
content: As kids come a gutsa was generally reserved for when we fell off pushies(bicycles) and skate boards

author: eti
author_rank: Super Contributor
timestamp: November 13, 2021, 01:48:53 am
content: Quote from: basinstreetdesign on November 11, 2021, 02:13:23 am😁 The ones who cannot spell nor pronounce words properly, and make zero effort to do so, even when they know full well that they’re saying it incorrectly. We all know who they are - don’t pretend.
Another investigation into cheap light pucks - Page 1
Forum section: electronics / general

author: msuffidy
author_rank: Frequent Contributor
timestamp: November 14, 2021, 02:55:12 am
content: The other day I was at the dollar store when I noticed a VERY cheap light puck I felt the need to experiment with. It was similar to the one I had before but it had a 'fade' function that clearly dithers between colors. It has always been my dream to control the exact color of the light puck through the remote. So I really don't expect it to be possible, but there is a SLIM chance you could alter the firmware on the puck and make the pwm feature yourself and alter the NEC remote 32 bit value to some sort of RGB like 6 6 6 bit value or something. So I was looking around and no one seems to have information on what is inside these things. I don't really want to mess mine up, but it expect it to be mask rom and not even re programmable. So you would at best be able to hotwire the driver transistors with a new board inside you make yourself? Also I wanted a rom dump to see if there are any undocumented codes. Here is a video about the new puck.
Ceramic Filter - Does anyone recognise this manufacturer logo? - Page 1
Forum section: electronics / general

author: TheBay
author_rank: Unknown
timestamp: November 10, 2021, 09:44:08 am
content: I've repaired quite a few radios that have had the infamous Toko ceramic filter failure, where the plastic is hygroscopic and causes internal contamination of the ceramic filter. This is a common issue with quite a few Kenwood and Yaesu transceivers.Usually I could get replacement parts from the manufacturer of the radio, however it seems stock of 2 of these filters have run out and they are sending out the Toko filters that have this issue (Must be really really old stock as Toko was taken over by Murata a few years ago)I had 2 "New" filters arrive from Kenwood this week that had black legs and contamination had already taken place in storage!.Murata did/do make these filters but I'm struggling to find anywhere that stock them.The good filters I've used have a logo that look like "CD" but I have no idea who actually make them, I'm struggling to find the following 2 parts:M55GWM50GTI can easily get hold of the following as spare partsM50EWM55EWCan anyone identify the logo at all, picture attached.Alternatively does anyone know where I can buy all 4 from Murata? They are listed on a Polish store but they just tell me it's a placeholder and they do not actually stock them.I don't like fitting the generic "LTW" filters from the far east.
VFD failure mode - Page 1
Forum section: electronics / general

author: l0rd_hex
author_rank: Regular Contributor
timestamp: November 11, 2021, 10:04:03 pm
content: Hello electro-pals,I am visiting the in-laws and their GE SCB1001MSS01 microwave / oven has some issues with the VFD display. The rest of the oven functions work and I've done some voltage tests on the various circuit boards and connectors. Thankfully, GE (well, LG probably) included some schematics with voltages in an envelope inside the metal shell. The high voltage area on the display board looked OK, there is 50-80 V DC being generated for the VFD. The board itself gets 5V from another power board so I'm thinking the problem might be on the display board but not with the high voltage as the VFD lights up and prints characters but they are sometimes jumbled. The screen doesn't seem to refresh properly either, a character gets written and is briefly visible but doesn't stay on screen. I've taken a video of the screen here:https://drive.google.com/file/d/19Pmr6pW-cfShygAIXzkR9QbIK9W0dZeI/view?usp=drivesdkI am thinking the shift registers (td62c950rfg) are borked but I didn't see any obvious damage. Picture of the board here:https://drive.google.com/file/d/19_Wc6zzwG3qXSFhNBKhnQCixacqNfwoi/view?usp=sharingI'm hoping someone has seen this type of failure mode and might know what part of the VFD circuit I should direct my attention to.Thanks!

author: jmelson
author_rank: Super Contributor
timestamp: November 12, 2021, 12:05:29 am
content: I'd strongly suspect tired electrolytic capacitors, first. This board is certainly powered on 24/7, so that could deteriorate them. I see 3 on the display board, but there might be mre on the CPU board.Jon
The world longest lasting battery, 176years old!  - Page 1
Forum section: electronics / general

author: ErikTheNorwegian
author_rank: Frequent Contributor
timestamp: November 15, 2021, 01:21:51 pm
content: There’s a bell in the Clarendon Laboratory at Oxford University that has been ringing since 1840. The researchers don’t know the exact composition of the cell that’s powering the bell. They are also afraid that opening the bell might ruin the setup. Its power source holds the Guinness World Record for the “world’s most durable battery.”https://en.m.wikipedia.org/wiki/Oxford_Electric_Bell

author: Gyro
author_rank: Super Contributor
timestamp: November 15, 2021, 02:12:42 pm
content: Ha, yes, that does pop up occasionally. From the date of the last thread it ought to be 181 years by now!https://www.eevblog.com/forum/chat/the-battery-that_s-lasted-176-years/

author: eti
author_rank: Super Contributor
timestamp: November 16, 2021, 04:45:57 am
content: Tom Scott needs to buy some new clothes. 😁
RTR - European commissioner for competition meeting with Time Cook - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: October 02, 2021, 12:43:32 am
content: I'll let louis explain the call for action in the video, butTLDRLouis just had a legal report completed about all the things Apple does to hinder repair with examples, references and case law. And the same day the report was finally finished the European commissioner for competition is meeting with Time Cook in New York. Louis wants the community to try push to get the European commissioner to visit him to present and discuss the report with her.

author: jh15
author_rank: Frequent Contributor
timestamp: October 02, 2021, 01:07:42 am
content: Glad you posted, I was wondering about to do it here too. To those in the dark, can you explain this? What can we do? I just commented, and shared to my wife, who watched it. Hoping for YouTube algorithm.Do we of USA have any say in this meeting? Is she flying in and out in one day or meeting elsewhere? Why Tim cook only or are there more, can we be more?

author: jh15
author_rank: Frequent Contributor
timestamp: October 02, 2021, 01:11:11 am
content: Oh, and this month, I am supposed to get my Framework laptop, talk about anti Apple design.... I shall now look to post about it somewhere here.

author: jh15
author_rank: Frequent Contributor
timestamp: November 08, 2021, 03:50:56 am
content: I've had my framework laptop awhile. surprised I am not seeing anything about it here. I'll start a thread.

author: SilverSolder
author_rank: Super Contributor
timestamp: November 08, 2021, 12:32:59 pm
content: Quote from: jh15 on November 08, 2021, 03:50:56 amThe Framework laptop sounds like an interesting idea. I hadn't heard about it... looking forward to the thread!
“Mikeselectricstuff” - humble genius  - Page 1
Forum section: electronics / general

author: eti
author_rank: Super Contributor
timestamp: November 01, 2021, 05:29:01 am
content: @mikeselectricstuffI want to recognise Mike of “mikeselectricstuff” - many know him. Mike, you’re savant level genius, and yet you’ve always come across as humble and keeping under the radar, never a know it all.Amazing. Thank you for your work.PS: Mike, I’m currently listening to “The Amp Hour” episode 412 - you’re EXTREMELY articulate, fascinating to listen to and you’ve got such a friendly, unique, endearing chuckle. 😁👍👍♥️

author: GlennSprigg
author_rank: Super Contributor
timestamp: November 06, 2021, 10:09:40 am
content: Yep, he is good! Some people have the ability to convey things in a non-condescending manner, while still getting the message across!!I used to be so amazed about one of my initial apprenticeship instructors many years ago!! I used to watch him, while some other peoplemight berate/abuse some kids for slackening off and acting dumb... Instead, he would approach them saying something to the likes of..."What are you making there 'Johnny'... "Oh, and how does that work?, and what is it going to be part of??"... "Oh, that's really important then,you must be proud of how you are fitting in with us!". The next think I knew/saw, that lad was happily/proudly & effectively doing his workagain, and feeling good about himself and his part in the scheme of things!! This is no bullshit story. His name was Alan Hudd, and was a seniorinstructor in our own workshops, of E.T.S.A. (main elect. authority back then), at around(?) 1975. Such a kind and effective Man!!

author: SilverSolder
author_rank: Super Contributor
timestamp: November 06, 2021, 11:12:36 pm
content: Mike is an inspirational character in the electronics space and his enthusiasm is infectious. +1 for recognizing!
Apple M1 Hype vs Privacy - Which Wins? - Page 1
Forum section: electronics / general

author: tooki
author_rank: Super Contributor
timestamp: November 04, 2021, 07:30:59 am
content: Quite a mishmash of facts, errors, misunderstandings, speculation, and deliberate mischaracterization, with a huge foundation of paranoia. BLE has been in use longer than contact tracing. The image scanning was never rolled out. Etc etc etc.

author: MT
author_rank: Super Contributor
timestamp: November 04, 2021, 04:50:41 pm
content: Quote from: tooki on November 04, 2021, 07:30:59 amHow did Brax get it so wrong?

author: tooki
author_rank: Super Contributor
timestamp: November 04, 2021, 06:07:49 pm
content: Easy! By ignoring facts that disprove his narrative. Paranoia is a sad affliction, really.He also just plain got numerous facts wrong, like claiming that Apple first used Bluetooth LE for Find My services. Or the photo scanning thing, which was never implemented after all.I’m in no way opposed to people giving Apple’s security a good hard look. Keep them on their toes. But do it honestly. And he’s not honest.

author: Someone
author_rank: Super Contributor
timestamp: November 04, 2021, 09:04:44 pm
content: Did not watch video posted into forum without any commentary or introduction. Did look at the "comments" and introduction text on the video(s) by that video producer, its an echo chamber in there! Like the followers are living in an entirely isolated community that doesn't even look to others for information (personality cult/sect).Quote from: MT on November 04, 2021, 04:50:41 pm1) Post a naked video with no other comment2) refer to comments on said video with "explain it to me"'So what are you adding to this MT?

author: Someone
author_rank: Super Contributor
timestamp: November 04, 2021, 09:07:23 pm
content: Quote from: tooki on November 04, 2021, 06:07:49 pmGoing by the content on that youtube channel, its hard to see if they are a rabid rooting/linux/freedom fanboy or a paid shill/troll. Either way not going to bother looking into it further when its so clearly biased.

author: eti
author_rank: Super Contributor
timestamp: November 04, 2021, 10:53:26 pm
content: #1 Who cares.#2 Who cares.#3 Who cares.{...}#99 Who cares.#100 Who cares.

author: MT
author_rank: Super Contributor
timestamp: November 05, 2021, 04:01:29 am
content: Quote from: Someone on November 04, 2021, 09:04:44 pmWhat are you adding with your bickering.Good grief!

author: eti
author_rank: Super Contributor
timestamp: November 05, 2021, 04:04:29 am
content: Quote from: MT on November 05, 2021, 04:01:29 am“Bickering”? Look up the definition, and stating “ Who cares“ Definitely ain’t it.

author: Cerebus
author_rank: Super Contributor
timestamp: November 05, 2021, 04:16:41 am
content: Quote from: eti on November 05, 2021, 04:04:29 amYou have to make allowances for MT not being a native English speaker. He meant to say "wittering" or "mithering".
Adam Savage Explains Möbius Strips and Klein Bottles - Page 1
Forum section: electronics / general

author: Homer J Simpson
author_rank: Super Contributor
timestamp: November 04, 2021, 01:16:39 pm
content: Interesting watch from Adam." a classic physical example of a non-orientable surface "

author: Tom45
author_rank: Frequent Contributor
timestamp: November 04, 2021, 03:38:26 pm
content: Cliff Stoll sells a wide variety of Klein bottles and related things athttps://www.kleinbottle.com/I ordered from him in the past and the experience is in keeping with Cliff Stoll's quirky persona.Adam Savage's video prompted a "flood" of orders:2021-Nov-2 -- Adam Savage! Yikes ... thank you! A tsunami of Klein bottle orders has arrived - more than two dozen! I'm working hard to fill these, but I'm way behind. Worse, I will be out of town on Wednesday & Thursday (Nov 3 and 4). Please realize that I do everything -- yep, I'm the only one here; this week I'm a full time packing & shipping clerk!As of 4PM Pacific time on Tuesday Nov 2nd, I'm all caught up -- I've sent out all Klein bottle orders. So I will now head over to the post office (aagain!) and then pack for my 2-day trip. I'll return on Thursday evening; any orders that arrive while I'm gone -- I expect to send them out on Friday and, perhaps Saturday.SO: While I'm away (Wed & Thurs), you can order from this website and I'll do my best to send your Klein bottle to you when I return - likely Friday or Saturday. (I have closed my Amazon listing while I'm away. In general, orders through amazon are more difficult for me).Many thanks for your understanding and patience! -Cliff (around 4PM on Tuesday Nov 2nd in Oakland, Califonrina)
Not a bug - Page 1
Forum section: electronics / general

author: PlainName
author_rank: Super Contributor
timestamp: November 04, 2021, 10:29:15 am
content: My Epson printer was doing strange stuff. Kept coming up with the message in the photo - "Do not use a pen or other objects on the touchscreen" - and periodically ejected a blank sheet of paper. WTF?!?Then, as you can see from the very bottom of the photo, I caught the blighter in the act. We have a fair few of different types, but generally they like to keep out of my way (and I like that too!).
Eurocircuits had a fire - Page 1
Forum section: electronics / general

author: Jeroen3
author_rank: Super Contributor
timestamp: October 29, 2021, 07:32:19 am
content: So, eurocircuits had a fire... for those that not order in china.https://www.eurocircuits.com/blog/update-on-fire-in-our-hungarian-factory/Doesn't appear that bad, they're cleaning up fast.Problem is going to be getting replacement machines today I guess with the part shortages.I can't really tell what kind of machine burst into flames.

author: jmelson
author_rank: Super Contributor
timestamp: October 29, 2021, 03:53:26 pm
content: What the HECK did they have in there that could support such a big fire? Is it all the prepreg that went up? Solvents? or what?Jon

author: perieanuo
author_rank: Frequent Contributor
timestamp: October 29, 2021, 04:06:34 pm
content: almost all their primary materials are flammable (highly)

author: PlainName
author_rank: Super Contributor
timestamp: October 29, 2021, 11:07:05 pm
content: Pity the fire didn't do for the photo panels, that continuously flick left and right, on that page.

author: tooki
author_rank: Super Contributor
timestamp: November 03, 2021, 07:26:39 pm
content: The TL;DR is that the machines for HASL and hard gold fingers burned to death, the rest is back up and running.
Anything interesting in bits of mass spectrometer support gear? - Page 1
Forum section: electronics / general

author: daqq
author_rank: Super Contributor
timestamp: November 01, 2021, 08:30:16 pm
content: Hi guys,On a local trade forum I noticed bits of a mass spectrometer system, including a QMH 400-5 (https://www.fe.infn.it/u/barion/docs/QMA/QMG700/RFgenerator.pdf) being sold, as I understand it a bit above scrap value. Included are some of the photos of the devices available.Ideally, someone who could really use the devices in their proper application would take these devices. But if no one takes them... well... might as well take them and see what's inside. The alternative as I understand it is the scrapyard. edit: And there's a time limit, till the end of this week.My question is whether or not there are any particularly interesting things inside this sort of thing?Before anyone asks: Yes, it would be a shame to tear them down for a few misc parts, but what's the alternative? I may keep them for some time, but the damn things are huge, probably weigh a ton, so not for long if I don't find an application for them.Thanks,David

author: daqq
author_rank: Super Contributor
timestamp: November 02, 2021, 09:02:00 pm
content: Anyone?

author: RJSV
author_rank: Super Contributor
timestamp: November 02, 2021, 11:14:44 pm
content: Actually, I did search on the RF Gen, has a (vacume I assume) waveguide, and numerous safety warnings.My experience (Systron Donner) was with self contained Helium Leak detection where a Quality Control Tech would spray helium from a wand, up and down some piping / housings.The mass spec. unit was portable in that it was huge but could be (barely) wheeled thru a doorway.So, it was specialized for helium, with a (needle moving coil) type meter, front and center. You spray, and cross your fingers...no wooooo tone or meter movement meant your welds we're good.The devices were gas pressured fire / overheat detectors.Hey...where's your vacume stuff: pumps gauges, lines and all kinda valves ?Maybe package as 'portion of a system', plus an older PC Tower, and a...old CRT monitor...oh wait, that's just some junk, behind the Mass Spectrometer System...
SLAC: Fabricating the Linear Accelerator - Page 1
Forum section: electronics / general

author: MathWizard
author_rank: Super Contributor
timestamp: November 06, 2021, 02:39:04 am
content: A great video of making a very big and expensive machine, the Stanford Linear Accelerator

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: November 06, 2021, 03:53:08 pm
content: Love it. Really ticks all my boxes. Physics, refined engineering, 1960s, that background music.... I wanted to go out and enjoy the day but now I'm stuck.
Identify EEPROM - Page 1
Forum section: electronics / general

author: l0rd_hex
author_rank: Regular Contributor
timestamp: October 28, 2021, 10:24:24 pm
content: Hello friends,The tiny robot that lives in my 2000 Honda Accord is sick. The robot, or what some might call "an ecu" has this 8 pin jobbie on it. Does anyone recognize it? The part number appears to be 3917 and the S logo is familiar but I can't place it.

author: eti
author_rank: Super Contributor
timestamp: October 28, 2021, 10:48:30 pm
content: I found various stuff - try this;https://www.google.com/search?q=honda+accord+ecu+eeprom+1999&sxsrf=AOaemvL3Hl1hsRa8dMdGWxEBgLdOtkazfw:1635461260898&source=lnms&tbm=isch&sa=X&ved=2ahUKEwi8lv_7l-7zAhUToFwKHU5oACQQ_AUoAXoECAEQAw&biw=1600&bih=1032&dpr=1

author: Benta
author_rank: Super Contributor
timestamp: October 28, 2021, 11:16:17 pm
content: Who's been fiddling with it?The upper four leads are bent, someone desoldered the lower four pins and lifted the device, did something with it, bent it back and resoldered it in an amateurish way.I'd ask the previous owner what this is about. Some kind of "Tuning"?

author: l0rd_hex
author_rank: Regular Contributor
timestamp: October 29, 2021, 06:01:10 pm
content: Mmm no one has fiddled with it, recently anyways. It still had the conformal coating from the factory (you can see it a bit at the left of the chip). This is actually on the immobilizer daughter board. Unfortunately the robot no longer recognizes the RFID tag inside my keys. It's been an intermittent problem but I want to fix it permanently as I'd like to sell the car (robot and all).I've seen else where that the immobilizer emulator chips send out a 1kHz 50% duty cycle square wave at 5V on one of the pins to tell the main cpu robot that the key is valid while the engine is running. I'm going to take a stab at mocking one up with an ATTINY85 'cause why not. I'm just curious how the rest of the circuit works at this point.
Google Doodle  - Page 1
Forum section: electronics / general

author: jpanhalt
author_rank: Super Contributor
timestamp: November 04, 2021, 09:45:53 am
content: "Google Doodle celebrates 'father of fiber optics' Charles K. Kao" (ascii binary in green)

author: jpanhalt
author_rank: Super Contributor
timestamp: November 04, 2021, 09:03:31 pm
content: Do you have an alternative? A library is an alternative, but it doesn't seem you go to there much either.Edit: Written in response to a now deleted post by another member.

author: magic
author_rank: Super Contributor
timestamp: November 05, 2021, 06:56:33 am
content: You mean, an alternative for Goolag?There is obviously none. Just accept that they are the only game in town and consume their doctored search results, childish graphic design and silly "doodles"

author: RJSV
author_rank: Super Contributor
timestamp: November 05, 2021, 07:59:22 pm
content: Oh, thought it had been a LATHE there...
Liquid tin solidified - Page 1
Forum section: electronics / general

author: matthuszagh
author_rank: Frequent Contributor
timestamp: October 29, 2021, 01:21:43 am
content: A few months ago I used MGChemicals liquid tin (https://www.mgchemicals.com/products/electronics-prototyping/electroless-plating/421a-liquid-tin/) to tin plate the edge connectors of several extender cards. I then left this in the pyrex container, stored it in a dark place and then pulled it out again today to do the same. But, it had solidified (image attached). The consistency is a bit like a gel.Is there a way to prevent this so that I can reuse the liquid tin, or do I have to discard it each time after use? During the tinning process it was exposed to sunlight. But I stored it in a dark place.

author: james_s
author_rank: Super Contributor
timestamp: October 29, 2021, 01:43:15 am
content: Did you seal it in an airtight container when you stored it? If you don't do that, some of the components will evaporate.

author: matthuszagh
author_rank: Frequent Contributor
timestamp: October 29, 2021, 01:45:01 am
content: Quote from: james_s on October 29, 2021, 01:43:15 amThat probably explains it. No it's one of those pyrex containers with a rubber top. I doubt those are air-tight. That's good to know.

author: Nusa
author_rank: Super Contributor
timestamp: October 29, 2021, 01:58:42 am
content: Add water (deionized preferred) until you have close to the volume you had when you stored it. Give it a few minutes to soak in, then mix best you can by swishing or using a safe-material tool. See if it works.

author: Ian.M
author_rank: Super Contributor
timestamp: October 29, 2021, 01:59:45 am
content: That Pyrex dish has a large surface area, and even with a close-fitting lid, I'd bet it lost a lot of water due to evaporation.Try re-dissolving the residue in a *small* volume of deionised water. Gentle heating in a waterbath may help. If it dissolves, check if its still active by applying a drop to a freshly prepared bright copper surface. If so, I'd bet it will keep much better in a small tightly stoppered jar.If not, it will be desirable to minimize the bath volume, by making a narrow shallow enclosure only slightly longer than the edge connector, as its quite likely that you'll find that used plating solution doesn't store well even in a sealed container.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: October 29, 2021, 04:33:24 am
content: Yeah, dissolve it in water, can't hurt to try I suppose. Beware, it may have oxidized, so have lower activity than before.Probably best is to just, you can wipe that stuff on, right? Just soak some paper towel and go, no need for immersion?Tim

author: Gary350z
author_rank: Regular Contributor
timestamp: October 29, 2021, 03:03:49 pm
content: The technical datasheet says "Volume lost due to evaporation can be replaced with DI water".
AD swallows MAX - Page 1
Forum section: electronics / general

author: Terry Bites
author_rank: Super Contributor
timestamp: August 31, 2021, 02:04:55 pm
content: Wow AD acquired Maxim. Is this a good thing? I've no love for MAX but they have some smart engineers.The market narrows again of course. Let hope TI doesnt eat them all.

author: rsjsouza
author_rank: Super Contributor
timestamp: August 31, 2021, 02:28:01 pm
content: Somewhat old news.https://www.allaboutcircuits.com/news/adi-to-acquire-maxim-integrated-for-21-billion-in-major-semiconductor-deal/EEV thread:https://www.eevblog.com/forum/chat/analog-devices-in-talks-to-buy-maxim/

author: bombledmonk
author_rank: Regular Contributor
timestamp: September 01, 2021, 05:16:25 pm
content: It's new old news because the deal was finalized and announced as official this week. At least I won't have to worry about visiting the incorrect Maxim website and hitting the corporate naughty blockers anymore.

author: schmitt trigger
author_rank: Super Contributor
timestamp: October 28, 2021, 06:44:30 pm
content: Quote from: bombledmonk on September 01, 2021, 05:16:25 pmHa! That has already happened to me too!But back to the original post: Yes the market is narrowing. Long term I ignore whether this will be either good or bad news. Ignore which competing devices could be discontinued.At least ADI appears to have respected Linear Tech’s culture and portfolio. Please note that I have said: It appears.
SiLabs stock price JUMP - Page 1
Forum section: electronics / general

author: Bassman59
author_rank: Super Contributor
timestamp: October 27, 2021, 05:17:13 pm
content: Dunno how many of you follow the casino called the stock market, but SiLabs' stock is up almost 22% TODAY.

author: floobydust
author_rank: Super Contributor
timestamp: October 27, 2021, 05:35:57 pm
content: Theirearnings callcame out, seemed okay. $185 million in Q3 revenue, growth of 39% year-on-year. Unless someone is acquiring them and it's insider trading?Yet another wireless protocol, to mystify dumb investors. Watch out Zigbee LOL"In Q3, we also announced the xG23, the latest addition to our award-winning Series two wireless platform. The xG23 is a sub-gigahertz wireless SoC that brings an industry-leading combination of wireless range, energy efficiency and security. This new solution can operate over a mile for more than 10 years on a coin cell battery while supporting our industry-leading Secure Vault security features. And because it's from Silicon Labs, the xG23 supports a wide range of protocols, including Amazon Sidewalk, mioty, wireless M-Bus, Z-Wave and Proprietary IoT networks. It's the optimal feature set for a growing number of smart city and industrial deployments as well as home and commercial building automation. Next, we announced our unified software development kit, or Unify SDK, which brings a new level of interoperability between industry protocols. Silicon Labs is committed to simplifying wireless connectivity."

author: Bassman59
author_rank: Super Contributor
timestamp: October 27, 2021, 06:07:28 pm
content: Quote from: floobydust on October 27, 2021, 05:35:57 pmWhen I saw the headline, my first thought before RTFA was "somebody is buying them."QuoteUnify = vendor lock-in. I suppose I should be glad I do not do IoT.
A very nice article appreciating “Mr. Carlson’s lab” - Page 1
Forum section: electronics / general

author: eti
author_rank: Super Contributor
timestamp: October 27, 2021, 03:56:44 am
content: We all know Paul Carlson, aka “Mr. Carlson’s lab” (or should, in any case), but it’s nice to see someone else’s appreciation of him too:https://theoutline.com/post/6127/a-good-place-mr-carlsons-electronics-youtube-makes-ever-problem-seem-manageable

author: andy3055
author_rank: Super Contributor
timestamp: October 27, 2021, 04:10:15 am
content: Yes, his channel is very addicting.

author: eti
author_rank: Super Contributor
timestamp: October 27, 2021, 04:16:59 am
content: Quote from: andy3055 on October 27, 2021, 04:10:15 amIt's certainly addictive, I agree.