hybridfree/eevblog-posts huggingface dataset:
Export from AU - Tariff / CN23 Form - Page 1
Forum section: electronics / general

author: greencardigan
author_rank: Contributor
timestamp: August 15, 2018, 12:34:43 am
content: Hi,I'm selling some Arduino shields, Arduino clones, and other small boards on Tindie. I've had my first international orders, Thailand and South Korea.Any advice completing the CN23 Customs Declaration form? I've been scratching my head for yonks and still haven't sorted it out.1. Do I need to classify the boards as a 'Commercial Item' if I'm not a business?2. If it is classified as 'Commercial Item', is the HS Tariff number based on the destination country or origin country?3. For Thailand I planned to use tariff number 8542.31.00QuoteFor South Korea I used planned to use 8542.39.30Quote

author: sleemanj
author_rank: Super Contributor
timestamp: August 15, 2018, 12:48:56 am
content: Maybe it's different in AU, but here in NZ it's a CN22 and the HS stuff isn't required for low value export, just the value and description.Only above $1000 from memory is full on export stuff required.(Actually just checked my last label printed and it's CN23 here for courier exports, but again HS isn't needed)

author: greencardigan
author_rank: Contributor
timestamp: August 15, 2018, 01:04:21 am
content: Thanks,I've already printed my labels with the HS Tariff numbers on them but will have a chat to the post office while I'm there.There shouldn't be any tariff fee anyway, just want to do the right thing so everything goes smoothly.

author: greencardigan
author_rank: Contributor
timestamp: March 08, 2019, 10:48:21 am
content: Just for the record, if been using tariff code 854231 on all my overseas parcels so far (approx 30) and have had no issues.

author: OwO
author_rank: Super Contributor
timestamp: March 08, 2019, 12:42:06 pm
content: CN23 is one of the reasons I avoid courier shipping. With small packet or ePacket which use CN22 all you need to write is a several word description of the product, and I generally just write "tool" for test equipment
YouTube Copyright rent. - Page 1
Forum section: electronics / general

author: promacjoe
author_rank: Regular Contributor
timestamp: March 07, 2019, 08:46:04 pm
content: Last night, I was looking for reviews on the new corelcad 2019 addition. Along with what I wanted, I got how to download the software for free, And how to crack the software. So many, that it was difficult to separate what I wanted, and what I did not. So I investigated a little further, and found hundreds of videos on how to crack software. It seems to be hypocritical of YouTube to sanction someone for telling how to legally download videos, and then allow people to post videos on how to Illegally download and crack software.This is something that should be addressed by YouTube.

author: Mr. Scram
author_rank: Super Contributor
timestamp: March 07, 2019, 09:17:29 pm
content: Please don't encourage YouTube to heavy handedly remove even more videos. It's never just the videos that should be removed.
Ultimate continuity tester hides many tricks up it's sleeve 10-2-2008 - Page 1
Forum section: electronics / general

author: flashdrive71
author_rank: Newbie
timestamp: March 07, 2019, 01:35:08 pm
content: Hi to all members:Does anyone have copy of Electronic Design Magazine 10-2-2008 so they could email me copy of fig1 and fig2 schematics missing from article?Its missing from online article and Electronic Design does not have it in their library. I am building continuity testers but I never scene one that uses a 1 1/2 volt power source using two transistor non-inverting amplifier to cause oscillations. I only scene 3v, 6v and 9v power source. So I very interested in seeing these schematics. If you read the article you will see this one of kind continuity tester. Thanks for any help from members.

author: Gyro
author_rank: Super Contributor
timestamp: March 07, 2019, 01:38:57 pm
content: Hi, I've already replied (with schematic) to your other post.https://www.eevblog.com/forum/oshw/continuity-tester-with-glitch-capture/msg2250480/#msg2250480

author: flashdrive71
author_rank: Newbie
timestamp: March 08, 2019, 12:01:18 am
content: Gyro:Thanks for schematic of continuity tester. I never though any member would have the article. I used have all my ED before I moved 2 times. Sorry I double posted I did not mean to. Now that I saw the schematic this is a really interesting circuit.
Pen Testing - Page 1
Forum section: electronics / general

author: ebastler
author_rank: Super Contributor
timestamp: March 04, 2019, 08:23:07 pm
content: Only mildly electronics-related, but a good dose of nerd content. And maybe even some practical relevance for your home!And no, this "pen tester" is not interested in writing implements...

author: dave3533
author_rank: Contributor
timestamp: March 06, 2019, 02:55:42 am
content: The upside down static duster can method for getting past IR door circuits was awesome!

author: GlennSprigg
author_rank: Super Contributor
timestamp: March 06, 2019, 12:54:57 pm
content: I may be off-base here, (but 'tangents' are my thing)...'Electronics' means nothing, when various 'mechanical' means circumvent.I used to be responsible for, (amongst many other things!), many types of access systems forPrisons, Banks, high-rise buildings etc etc. 'KeyPads' in the field, always made me laughWhy?... Because often people had dirty fingers, and so the '4' (typical) numbers always lookeddifferent on the keypad! Say the 'dirty' numbers were '2,4,6,8'. So, the 'CODE' was 2,4,6,8or 2,8,6,4 or 2,8,4,6 etc... Cracked in 20 seconds !!!! I would regularly try to educate the buildingowner to at least get the Cleaners to CLEAN all KeyPads !!... Sigh...Or that building exit doors have to be fail safe, with MagnaLocks or 'Power-To-Lock' door-strikes.So cutting the wires to them, gives you physical access ! (Alarms not withstanding).Or that 'Card' access with a lot of systems can range from a 'cleaner' having access to a 'room',through to a general manager having access to 'all' company/bank buildings/areas...They often utilize a 'common' code for all their buildings/areas, as well as a computerized ID forthe individual employees. So, SIMPLY cutting the 'Comms' cables from the 'building', (to the centralprocessor system/building), means that ANY card will give you access to EVERYWHERE !!The easiest was 'bluff'...(It's ok. It was my job). I would walk into a vault, or control room, andopen my attache case of tools. Sometimes people 'look' at you, but think... "Well he is in here, so Isuppose he is supposed to be"... but very rarely was I questioned ! It's called 'Complacency'
10 finger typing online lessons - Page 1
Forum section: electronics / general

author: Zucca
author_rank: Unknown
timestamp: March 01, 2019, 10:22:05 am
content: For those who didn't learn it at school.https://www.typingclub.com/It's excellent and free. I am doing it during work break and I love it.

author: JVR
author_rank: Regular Contributor
timestamp: March 05, 2019, 10:19:30 am
content: This is kicking my ass. I can type at a good rate of knots with my homebrew style, but I think this is what I needed to learn to type correctly.

author: m98
author_rank: Frequent Contributor
timestamp: March 05, 2019, 11:37:55 am
content: This lets me understand how people get repetitive strain injury from typing...Great coordination exercise, though.

author: r3bers
author_rank: Contributor
timestamp: March 05, 2019, 11:20:24 pm
content: In Russia we have software for many languagehttps://solo.nabiraem.ru/This company works from early 90...

author: dave3533
author_rank: Contributor
timestamp: March 06, 2019, 02:53:31 am
content: While I did learn to type in school, I've developed bad habits that I'm not sure are correctable (always using left shift for capitalization for example). I'd also like to learn the top row special characters. I suppose I need to consciously work at it. I'll have to check out TypingClub. I did try a game-ified typing instructor called Typer Shark which was pretty fun years ago, but didn't really feel it was showing me the correct way to practice.
Multimeter 121GW Screen Sharing - Page 1
Forum section: electronics / general

author: Sac
author_rank: Contributor
timestamp: March 06, 2019, 12:36:36 am
content: This is my first post to this group so Howdy all!!!Question... How can i screen share my GW121 multi-meter to a External screen?? At the moment in screen sharing my Samsung S9-10 something to a chrome cast device on my Monitor. This is pretty laggy and was wondering is there was a better way to do it..Thanks AllSnowie

author: r3bers
author_rank: Contributor
timestamp: March 06, 2019, 02:10:38 am
content: Some projects is here:https://github.com/search?q=121gw&type=RepositoriesThere is good project from Paul Danielshttps://github.com/inflex/BK-390AIt used on Louis Rossmann streams. Maybe it not difficult to fork and modify it for 121GW protocol from serial bt
Lost posts? - Page 1
Forum section: electronics / general

author: Tomasu
author_rank: Newbie
timestamp: March 05, 2019, 03:21:50 pm
content: I could swear I had posted on here in the past, but it's been a (long) while. Has there been a forum reset that I forgot about or missed?

author: wilfred
author_rank: Super Contributor
timestamp: March 05, 2019, 11:38:53 pm
content: Can you give us a list of those youareaware of?It is unlikely you would have lost posts and if you did, no-one else seems to have. Do you find yourself losing other common houshold things such as car keys and spectacles?
Hiding threads on main page? - Page 1
Forum section: electronics / general

author: digsys
author_rank: Unknown
timestamp: February 26, 2019, 03:27:40 am
content: Is there any way to "disable" threads from showing up on the front page? I rarely have time to use the "previous" function, and miss a lot of new stuff.This is not a complaint, I sometimes follow the long threads, but it does get "difficult". I've peeked around, but can't see anything obvious. Tks

author: wilfred
author_rank: Super Contributor
timestamp: February 26, 2019, 06:11:37 am
content: Not sure what you mean byfront pagebut if you, like me, go to "Show unread posts since last visit." then there is the option of taggingunreadthreads for ignoring.After that you won't see them in future. But if you go back in via the forums home page (front page?) you will see them.So the threads that generate a lot of replies and constantly show up in the unread posts list will be far less obtrusive. I have found it very useful for threads that I have no interest in or where a few people monopolise them for a personal bunfight, or those predestined to run off into the weeds.You maintain the list of ignored threads via your forum profile.

author: digsys
author_rank: Unknown
timestamp: February 26, 2019, 07:52:28 am
content: Quote from: wilfredQuoteYeah these .. BoardIndex or home page ..

author: digsys
author_rank: Unknown
timestamp: February 28, 2019, 12:24:38 pm
content: No solution?

author: digsys
author_rank: Unknown
timestamp: March 05, 2019, 01:25:43 pm
content: I bet some would have liked a solution now :-)
Electronics in the 1930's - Page 1
Forum section: electronics / general

author: larrybl
author_rank: Regular Contributor
timestamp: March 04, 2019, 09:04:22 pm
content: I was cleaning out a shed and came across my old foot locker and I found a manual that I had had sense I was a child, (now in my 60's) I thought the section on Television was a very interesting read. I would like to pdf. this book but it is over 1000 pages.

author: Andy Watson
author_rank: Super Contributor
timestamp: March 04, 2019, 09:46:24 pm
content: Already been done:https://archive.org/details/RadioPhysicsCourseGhirardi/page/n1

author: larrybl
author_rank: Regular Contributor
timestamp: March 05, 2019, 12:39:55 am
content: Well drat, guess the hard copy isn't worth much.

author: bob91343
author_rank: Super Contributor
timestamp: March 05, 2019, 01:34:33 am
content: Ghirardi's book was considered the 'bible' for radio. My dad had a copy and looked at it with awe. Nearly everything in it is useful today. He wrote other books, I think one was called Practical Radio Servicing. Of course, Terman's books were also excellent and still in use. I have a copy of Terman and refer to it occasionally.

author: amyk
author_rank: Super Contributor
timestamp: March 05, 2019, 01:36:08 am
content: Quote from: Andy Watson on March 04, 2019, 09:46:24 pmThat's a newer edition, it'd still be good to scan the older one and compare differences (plus some material of historical interest may only be present in the older one).
Scientists finally figure out why grapes make plasma in the microwave - Page 1
Forum section: electronics / general

author: Beamin
author_rank: Super Contributor
timestamp: February 20, 2019, 01:47:56 am
content: Here is the paper and for people with short attention spans a veritasium video he just made where he reexplains the trick.Basically the index of refraction of the grapes changes the 12 cm wave length down to about 1.2 cm and the water in the grapes makes it so you don't need perfectly sized grapes to make it work. Also the Na and K ions help create the plasma.https://www.pnas.org/content/early/2019/02/13/1818350116https://youtu.be/wCrtk-pyP0I

author: Beamin
author_rank: Super Contributor
timestamp: March 04, 2019, 06:45:46 pm
content: I just tried this and couldn't get it to work and now the microwave smells bad.Has anyone tried this who works with high power RF like putting something in front of the wave guide to some crazy LOS communications transmitters? Why can't you stand on the top of FM radio/TV towers when they are on if it's only 100~ MHZ ; too low to cook things/people? We used to climb those as kids and I always remember seeing those yellow FCC warning signs that say "RF environment or high RF energy area", and making sure to stand/climb/hang behind the bubbles/horns. My friend once climbed in front of one that no else was crazy/stupid enough to; he had chocolate candy in his pockets that had melted and complained of having a head ache when he was up there. Have no idea what Hz as there were tons of antennas up there and other towers pointed in that direction. At the base of those towers you could hear noise through the speakers of the car radio... when it was off or even missing the head unit.

author: shakalnokturn
author_rank: Super Contributor
timestamp: March 05, 2019, 12:05:35 am
content: If you're subjected to enough energy, whatever the wavelength, you'll end cooked.
SOAR 1320 logic analyser user manual - Page 1
Forum section: electronics / general

author: gkmaia
author_rank: Frequent Contributor
timestamp: March 04, 2019, 07:27:08 pm
content: I on a quest to get this little guy back on duty.I finally managed to get it back working from a few dead components.I do know how logic analysers work but this one has it is own set features I have no idea how make good use of it.I am in need of a user manual. I know it is a long shot as this thing seems to be pretty rare.But if any of you have seen one, know someone who has and has a manual I would appreciate any help.I also know SOAR has done some other analysers with similar functions a manual from those would also help.
Warning: Fake LM2937 are on the market without reverse polarity protection. - Page 1
Forum section: electronics / general

author: Psi
author_rank: Super Contributor
timestamp: February 17, 2019, 02:21:36 am
content: As the topic says,Just a warning that fake LM2937 regulators are out there.They don't include the reverse polarity protection, any reverse polarity causes them to explode.I expect they also don't include the 60V transient protection too, but this is harder to test.They are likely just some other random regulator stamped to look like a LM2937 since the LM2937 is quite expensive due to automotive rating.I just found out because a unit from the latest batch of products blew up on me.The PCBA BOM had in big bold red letters that this part is critical and must be genuine.I might post a video of genuine vs fake chip exploding from reverse polarity later.The PCB was populated at a popular PCB assembly house that we all know. I'm still deciding if i will name them and am waiting to hear back from my email.But yeah, if you sell a product that uses the LM2937 regulator and don't do a reverse polarity test as part of production processes you should start doing it and check existing products.It's an easy thing to miss as the product will works fine otherwise. Except maybe being more prone to random failures without the 60V transient protection.

author: CJay
author_rank: Super Contributor
timestamp: February 18, 2019, 10:47:43 am
content: Ouch, any pics of the fakes?

author: Refrigerator
author_rank: Super Contributor
timestamp: February 18, 2019, 07:49:15 pm
content: Quote from: Psi on February 17, 2019, 02:21:36 amPlease do.

author: Bassman59
author_rank: Super Contributor
timestamp: March 04, 2019, 06:52:53 pm
content: Please post the name of that assembly house.

author: wraper
author_rank: Unknown
timestamp: March 04, 2019, 06:58:25 pm
content: Yep, post the name. Regardless if they handle this situation well, it will be just the same as with Chinese ebay sellers. They'll fix it for you and will happily continue to use/sell fake crap for others.

author: schmitt trigger
author_rank: Super Contributor
timestamp: March 04, 2019, 07:09:31 pm
content: Your video should be done in your best Hindenburg disaster narrator's voice:It's smoke, and it's in flames now; and the component is releasing its magic smoke, not quite to the center of the body. Oh, the humanity! And all the technicians in the lab screaming around here.
Short distance low bit rate digital transmitter/receive modules simple interface - Page 1
Forum section: electronics / general

author: Axk
author_rank: Regular Contributor
timestamp: March 03, 2019, 07:17:38 pm
content: I need to transmit/receive maybe 10 bytes a second the range is a meter or 2m max.Need something with as simple interface as possible but reliable enough that I don't have to deal with noise issues and such on the receiving end.Would drive the transmitter from a small FPGA so need a simple interface to fit into the FPGA together with other things.Familiar with Nordic Semiconductor modules like this one and would go with it,but the interface might be a bit too complex to fit into the FPGA:https://www.sparkfun.com/datasheets/Components/SMD/nRF24L01Pluss_Preliminary_Product_Specification_v1_0.pdf

author: ogden
author_rank: Super Contributor
timestamp: March 03, 2019, 07:48:56 pm
content: RF transceiver IC's have more or less similar complexity at the interface side. If FPGA softcore CPU is not solution for you, then you can use "wireless MCU", likehttp://www.ti.com/product/CC2510.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: March 03, 2019, 09:06:55 pm
content: Is line of sight okay? Infrared sounds good if so.Tim

author: radiolistener
author_rank: Super Contributor
timestamp: March 03, 2019, 09:39:19 pm
content: ultrasonic transmission also can be used.You can buy these ultrasonic TX/RX sensors for example:https://www.aliexpress.com/item/16MM-direct-probe-ultrasonic-sensor-transceiver-split-25KHz-another-transceiver/32644794200.htmlEach lot consist a pair of TX and RX sensor.Their working frequency is 24 kHz, but also can work on 12 kHz and 16 kHz.Measurement is taken with connect sweep gen output to TX sensor and input to RX sensor.

author: Axk
author_rank: Regular Contributor
timestamp: March 03, 2019, 10:03:53 pm
content: Unfortunately line of sight is not an option.Those Nordic Semiconductor chips are probably a simpler interface than I imagined. I won't use a softcore because I will be trying to fit my design in LCMXO2-256 with other ADC interfacing logic and it shouldn't be difficult to implement basic SPI in the FPGA if it fits.

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 03, 2019, 10:32:01 pm
content: Another option is to use cheap 433MHz modules.

author: Axk
author_rank: Regular Contributor
timestamp: March 03, 2019, 10:39:54 pm
content: The 433MHz ASK ON/OFF modulated ones? I wonder if I'll be able to reliably receive the signal without much error-handling logic.I would probably leave the idea of the receiver/transmitter setup for my project and use one of those UART Bluetooth modules and an Android app to receive the info from the transmitter. The only downside I will have to pick my FPGA's clock frequency so that it can be divided down to one of UART standard frequencies.
Little Giant -- The transistor 1959 - Page 1
Forum section: electronics / general

author: newbrain
author_rank: Super Contributor
timestamp: March 03, 2019, 10:36:34 am
content: Hey! That's my old scope in the background at 4:37!Fairchild 304A (mostly known as Dumont), not an atom of semiconductors in view inside that old clunker!

author: bsfeechannel
author_rank: Super Contributor
timestamp: March 03, 2019, 03:53:16 pm
content: Being a non-native speaker of English I went to check and was relieved to confirm that the pronunciation is "tranZIStor", not "trans sister".

author: Homer J Simpson
author_rank: Super Contributor
timestamp: March 03, 2019, 09:42:03 pm
content: part II
Source for precrimped quick disconnect/ring/spade terminal leads? - Page 1
Forum section: electronics / general

author: iampoor
author_rank: Frequent Contributor
timestamp: March 03, 2019, 04:48:06 am
content: HelloI am wondering if anyone has any sources for reliable suppliers that sell precrimped quick discconect (.250) and or ring/spade terminal leads. I am looking for a wire gauge of around 16-20awg, and a length of 6 to 24inI have search digikey and mouser, and come up with very few options.https://www.digikey.com/product-detail/en/jst-sales-america-inc/ASRSFSRSF20K305A/455-3208-ND/6194863ANyone know of a reliable company that supplies precrimped leads? I need some for some low volume production, and was hoping to avoid buying a VERY expensive crimper!
russia to centralize satillite comms - Page 1
Forum section: electronics / general

author: coppercone2
author_rank: Super Contributor
timestamp: March 02, 2019, 05:42:04 pm
content: https://tech.slashdot.org/story/19/03/01/2223258/russia-limits-operations-of-foreign-communications-satellite-operatorsWill they put a giant reflector over all of russia next?

author: Jeroen3
author_rank: Super Contributor
timestamp: March 02, 2019, 05:49:14 pm
content: Seems like Russia does not likeStarlink. And already put legislative countermeasures in place.However, can this technically be enforced? Here in the netherlands there are threedish fieldsfor satellite communication espionage. Don't know exactly what their capabilities are though.

author: coppercone2
author_rank: Super Contributor
timestamp: March 02, 2019, 06:37:40 pm
content: thats probably because of SHAPE being in that country

author: radiolistener
author_rank: Super Contributor
timestamp: March 02, 2019, 10:44:28 pm
content: Quote from: coppercone2 on March 02, 2019, 05:42:04 pmthey can disallow to use devices for such communication. But if it will become world standard, how they will prohibit to use such equipment on the aircraft for example? They cannot demand to power off all such equipment while aircraft in the Kremlin regime area, and cannot use jamming, because this equipment may be used for aircraft safety

author: Brumby
author_rank: Unknown
timestamp: March 02, 2019, 11:46:40 pm
content: Quote from: blueskull on March 02, 2019, 11:12:21 pmSince the ban already exists, the government can exercise its powers under that ban at any time they wish.I'll bet pounds to pence if they have any reason to suspect something nefarious might possibly be going on, those powers will surface in very short order. That's the convenience of having such laws in place.

author: coppercone2
author_rank: Super Contributor
timestamp: March 03, 2019, 12:43:39 am
content: I think the police are generally not well funded in china considering most of their budget goes towards pro party laws.
3D Printed Human Ears from Vegemite beginnings? - Page 1
Forum section: electronics / general

author: beanflying
author_rank: Super Contributor
timestamp: March 02, 2019, 05:58:08 am
content: Much as we all had a bit of fun with Vegemite printed Circuits in this threadhttps://www.eevblog.com/forum/chat/3d-printing-vegemite-electronics-on-breadboard/to do with this Video and Australian University of Wollongong playing in their labhttps://youtu.be/TpCDg69hj1EWhat this may have led to from the Same Uni using the same types of Syringe printing to start making actual body parts. In this case replacement internal prosthetic ear frames. Being a news item it lacks much detail but really interesting to keep an ear out for more informationYes I did have to go there.https://youtu.be/MD_9q5096zIVegemite clearly an inspirational product
British lighting companies don't seem to employ Electronics Engineers...why not? - Page 1
Forum section: electronics / general

author: ocset
author_rank: Super Contributor
timestamp: March 01, 2019, 09:15:07 pm
content: HiIn UK today, there are huge numbers of lighting companies, all of which call themselves “lighting designers and manufacturers”For example, there’s………………………Acdclighting.co.ukhttps://londonlighting.co.uk/https://www.endon.co.uk/https://www.keslighting.co.uk/https://www.darlighting.co.uk/https://www.whitecroftlighting.com/…and literally 100’s and 100’s more.None of them seem to employ any electronics engineers.When you look on linkedin, none of these companies seem to have any electronics engineers.So who designs the ballasts and the LED drivers for them?Is all their stock from China? (ie all the ballasts and LED drivers and Switch mode power supplies)

author: nctnico
author_rank: Super Contributor
timestamp: March 01, 2019, 09:44:22 pm
content: A lighting designer isn't about designing electronics but choosing the right lamps and fixtures for a particular purpose. They don't need EEs for that. EEs would probably suck at that job.

author: Gyro
author_rank: Super Contributor
timestamp: March 01, 2019, 09:56:03 pm
content: Looking at the links. All of those companies are retailers / distributors. If you look at their ranges, they buy from many different manufacturers.

author: Benta
author_rank: Super Contributor
timestamp: March 01, 2019, 09:57:13 pm
content: Lighting design is about optics. Whether they use a halogen bulb or an LED solution is moot, the light sources come from outside.
Rechargeable 9V Lithium batteries & handheld meters. - Page 1
Forum section: electronics / general

author: shakalnokturn
author_rank: Super Contributor
timestamp: March 06, 2019, 01:47:38 am
content: I started considering using Li-ion / Lipo batteries instead of the disposable 9V alcalines in my handheld equipment.Had a quick look on AliExpress, some have µUSB charge sockets (convenient but wastes some volume that could be dedicated to the cell) others don't, capacities go as high as 1.2Ah if that can be trusted.Most are rated for 8.4V maximum but some are rated at 9V output, do these have integrated boost electronics?This battery type is quite prone to accidental shorting if left lying around, is there a decent short circuit protection?If you've tested any please let me know...

author: NiHaoMike
author_rank: Super Contributor
timestamp: March 06, 2019, 05:19:44 am
content: From another thread:https://lygte-info.dk/review/batteries9V/Common9VIndividualTest%20UK.html

author: helius
author_rank: Super Contributor
timestamp: March 06, 2019, 05:54:15 am
content: Industrial (alkaline) 9V batteries come withplastic coversto protect against shorting. They should also be used on lithium-ion substitutes where such protection is even more important.
CE approval consultant - Toronto area? - Page 1
Forum section: electronics / general

author: Jester
author_rank: Frequent Contributor
timestamp: March 01, 2019, 12:41:54 am
content: Can anyone recommend someone/firm experienced in getting products approved for the European market (CE mark). Needs to be somewhere near Toronto/GTA.Two products:1) 50W power supply2) Residential LED lightAssuming the products will meet the safety and EMC requirements (already passed pre-scan), roughly what budget $, to produce the appropriate CE documentation and have official compliance reports for safety and EMC? (per product)

author: alpher
author_rank: Frequent Contributor
timestamp: March 01, 2019, 01:44:43 am
content: CE is a rather voluntary thing, I wouldn't worry about it at all.Get a decent approval mark (CSA, ULc, ETL or something similiar) and slap a CE sticker on it if it makes you feel better.

author: Silveruser
author_rank: Regular Contributor
timestamp: March 01, 2019, 04:37:30 am
content: Google "CE marking Canada" gives a few results. Can't recommend anyone buthttps://www.tradecommissioner.gc.ca/world-monde/133383.aspx?lang=eng.is a government site with some info.
A Trillion Humans Across The Solar System. - Page 1
Forum section: electronics / general

author: coppercone2
author_rank: Super Contributor
timestamp: March 01, 2019, 02:14:04 am
content: this reminded me of my favorite short storyhttps://www.physics.princeton.edu/ph115/LQ.pdf

author: unitedatoms
author_rank: Frequent Contributor
timestamp: March 01, 2019, 02:30:43 am
content: Humanity can perfectly sustain in trillions counts of total population, we just need to figure out how to reduce average person's size to be less than 5 millimeters.
Record PC Video with MIC chat as I go - Page 1
Forum section: electronics / general

author: NivagSwerdna
author_rank: Super Contributor
timestamp: February 27, 2019, 01:53:42 pm
content: I have to explain a few concepts that involve doing stuff on a PC... basically it will be approx 30 mins sessions during which I will type things into the PC and watch things happen during which time I will narrate what I am doing with a headset.I will be using Windows 10 (although the actual stuff is within a VMWare Player Window). Due to my amateur nature is likely that I will mess a few things up so I will need to be able to chop out chunks when I redo them and possibly add the odd caption.The final product doesn't need to look professional as the audience is just a few people.Any suggestions? I can pay for software but it needs to be <$200 and preferably nearer zero.Thanks in advance

author: EEVblog
author_rank: Unknown
timestamp: February 27, 2019, 02:14:20 pm
content: OBS to record the screen capture and audio, and maybe DaVinci Resolve to edit it, both free.

author: NivagSwerdna
author_rank: Super Contributor
timestamp: February 28, 2019, 10:00:54 pm
content: Used OBS for the first time. Awesome. Thanks so much for pointing me in the right direction.

author: NivagSwerdna
author_rank: Super Contributor
timestamp: February 28, 2019, 10:39:05 pm
content: Just trying out Resolve now... My default settings were not helpful.... but the following video seems to help...
New Makerspace in Va - Page 1
Forum section: electronics / general

author: The_Welding_Library_Guy
author_rank: Contributor
timestamp: February 28, 2019, 09:48:50 pm
content: Hey all,I have been working for a while to get a makerspace opened up at the college I both attend and work at. I acutely found out about the job I now have. Because almost two years ago I came up to library to speak with the director about a makerspace. At the time it wasn't in the cards but now almost two years later. I'm setting up the makerspace that brought me here. Kinda funny how things come full circle sometimes.Any ways. The makerspace is called the Make It! Creative Lab. For the first few years the plan is keep it a relatively small maker space that is housed in our main campus library. But we do have preliminary plans to expand into a larger makerspace complete with wood and metal working tools and other equipment that isnt feasible to have in a library (welders and books don't go well together) The long term plan is to have this full sized makerspace become a main feature of our extended campus.Just the other day we put in the purchasing order for two 3-D printers with multi material heads, A CNC router and CNC laser cutter head, and other smaller items such as a shop vac, tools, and of course safety gear. I am also personally donating some equipment and am working on getting more equipment and parts in for an electronic education table. I am hoping that over time I will be able to get a hold of a function generator, power supply, arduino breakouts to build out the EE table in to a great resource.My hope is that the equipment we ordered will start arriving over spring break next week and I will be able to get right to work on setting it up. Accounting for potential delays, setup and calibration, and other factors. I'm shooting for a opening as early as 2-3 weeks from nowOne of the cool things about our maker space is that we are an academic library so naturally it is a resource for students, but I was able to get it set up in a way that we are able to welcome community makers with open arms! So if you are in the area or even just passing through come by and see us. The library is Wampler Library on the MECC campus in Big Stone Gap VA. We are kinda cradled in the East TN, East KY, Southwest VA areaAlso I am only one guy and so I cant possibly be a expert in everything that we are eventually going to cover in the Makerspace. So if any you did have a desire to become involved and help out whether that be support with expertise, equipment, resources, offering to teach a workshop, Ideals, or suggestions. please feel free to contact me. I want to build a lasting makerspace that is built by makers and for makers and I think the only way to do that is to get input from other makersThanks guys(attached below are photos of the space the Make It! Creative Center has been allocated)
[Mac Users] Help on an eGPU - Page 1
Forum section: electronics / general

author: blueskull
author_rank: Unknown
timestamp: February 28, 2019, 04:48:17 pm
content: Mac users on this forum, please suggest me a suitable eGPU solution.My system is a 2018 Mac Mini i5 (8GB/256GB, upgraded with 32GB).So far, all apps I run are smooth, including Altium (2D PCB) in Parallels.The only thing that I'm not satisfied is gaming performance.I don't play triple A titles. CS:GO, HL2 franchise and classic Warcraft III are all I need.War3, being a 2003 game, runs smoothly, as expected. HL2 franchise runs reasonably well, and I have no complaints.The real PITA is CS:GO. It can sustain 60fps, but the stutter is utterly unbearable, especially when competing with other players online.Therefore, I need an eGPU for this game.So far, I have a Lenovo GTX1050 dock, but unfortunately Apple basically said FU to Nvidia and its users, so it's not gonna work.I then bought a Gigabyte RX580 eGPU. Considering its $399 price, it's a bargain.However, as I start to use it, its flaws show up. One particularly unbearable being its power cycle bug.It doesn't go quiet under 0% load. The GPU fan is okay, but the PSU fan is noisy.It fails to enumerate if computer is power cycled and the eGPU is not. Therefore, I have to power cycle the eGPU every time I power off my computer.I didn't have to power off my Mac every night if the fan wasn't so loud, so it sucks, doubly.Not to mention that its RGB controlling software supports Mac, but the app doesn't work, so all settings must be done on another Windows PC.No Thunderbolt FW update tool for Mac, no MCU FW update tool for Mac, and not even RGB controller for Mac.---------------------------------------------------------TL;DR:I need an eGPU that is:1. Small. I'm moving back to China in a few months, and I need to pack things. Apple's official Black Magic is way too big, so does Razor Core X and Sonnet Breakaway.2. Designed for Mac, and actually works flawlessly with a Mac.3. Future proof. I prefer officially upgradeable, or at least upgradeable with a risk. If the GPU is soldered or connected with a non-MXM, non-PCIe connector, I'm not in.4. While I prefer it to be cheap, I don't really have a budget limit. Any price I can justify is okay.Any suggestions?

author: netdudeuk
author_rank: Frequent Contributor
timestamp: February 28, 2019, 06:04:00 pm
content: I'd say have a look at this long thread specifically related to the new Mac Mini.https://forums.macrumors.com/threads/external-gpu-egpu-resources.2154653/
Can I use Paypal with easyEDA? - Page 1
Forum section: electronics / general

author: PerranOak
author_rank: Frequent Contributor
timestamp: February 27, 2019, 04:42:00 pm
content: A quick Q.I can't find data on their site and nothing conclusive by searching the web.I want to use PayPal to order PCBs but don't want to get to the end and find I can't?Cheers.
Why does this website do this ? - Page 1
Forum section: electronics / general

author: lordvader88
author_rank: Frequent Contributor
timestamp: February 25, 2019, 10:50:30 pm
content: Every time I post a comment, the site exists the thread i just posted in. I've never been on any other forum that does that, and it's annoying.

author: RoGeorge
author_rank: Super Contributor
timestamp: February 25, 2019, 10:57:48 pm
content: Type your comment, click on the "+" for "Attachments and other options", then check the checkbox named "Return to this topic."

author: ataradov
author_rank: Super Contributor
timestamp: February 25, 2019, 11:22:44 pm
content: Is not there a setting for this in the profile?Yes, I remained on the topic. Let me figure out where it is.Profile -> Modify Profile -> Look and Layout -> Return to topics after posting by default.
Yokogawa DL1540CL Oscilloscope worth to buy ?  - Page 1
Forum section: electronics / general

author: pepslight
author_rank: Newbie
timestamp: February 24, 2019, 10:45:21 pm
content: Hello,I'm on the search for a good Oscilloscope on a tight budget. I saw someone selling and Yokogawa DL1540CL Oscilloscope. Has anyone any experience with this Brand or Oscilloscope ?Here are the specsThank you very much for your attention

author: Fludo
author_rank: Regular Contributor
timestamp: February 25, 2019, 05:26:33 pm
content: Yokogawa is a really great scope manufacturer, in my previous department we had over $300,000 worth of yokogawa scopes/data recorders/power analyzers.I liked them so much I bought a DL7200 and use it as my primary scope at home. I've used the DL2000(newer version of the DL1540) and it was definitely my favorite due to screen size/portability. The only problem I ran into was that the discontinued models will have zero support from Yokogawa service, and certain parts can be hard to find. There won't be any schematics, but nothing has failed in my scope since i bought it.

author: pepslight
author_rank: Newbie
timestamp: February 25, 2019, 07:36:27 pm
content: Awesome thank you very muchI will try to win this Auction

author: SiliconWizard
author_rank: Super Contributor
timestamp: February 25, 2019, 07:50:16 pm
content: This is a great scope. We had one at work like 10 years ago. Would still be perfectly usable today. Beware it has limited sample rate (200Msps max IIRC), but if it fits your requirements, it's pretty good otherwise. It also is much lighter and smaller than most of its competitors of the day, so it will not take a big chunk of your bench space.
How do you upload pictures here ? - Page 1
Forum section: electronics / general

author: lordvader88
author_rank: Frequent Contributor
timestamp: February 25, 2019, 08:39:56 pm
content: Can I upload them directly from my PC or do I have to put them on some sharing site, and if so whats a low-hassle 1 that u don't need to sign up for ?

author: helius
author_rank: Super Contributor
timestamp: February 25, 2019, 08:42:05 pm
content: Click "Reply" to open the full post edit page, and click the + under the text box that says "Attachments". Click "Choose File" and select the picture from your computer.

author: lordvader88
author_rank: Frequent Contributor
timestamp: February 25, 2019, 09:11:07 pm
content: Ok thanks, now to get my microscope working with my PC, so I can save pictures
Regardless Brexit (aka FX rates fluctuation), they keep a min order size same - Page 1
Forum section: electronics / general

author: olkipukki
author_rank: Frequent Contributor
timestamp: February 24, 2019, 12:29:13 pm
content: It seems they do not bother to increase a minimum order size, cannot say same for listing pricesMouser:QuoteDigi-Key:QuoteP.S.It would be great to buy $60 cash for £33... ok, just $50 would be fine too
Eltek MultiSite monitor software price - Page 1
Forum section: electronics / general

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: November 30, 2018, 09:19:15 am
content: Hi,I wonder if any one in here has used this peace of software from Eltek, it's used to monitor up to 25000 sites,https://www.eltek.com/globalassets/imported-documents/open/ds-4061xx.ds3-1-6-1.pdfwhat sot of prices should I expect when I want to ask to buy this? any info?

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: February 25, 2019, 01:25:23 pm
content: Any Ideas about the price?

author: Jeroen3
author_rank: Super Contributor
timestamp: February 25, 2019, 01:48:03 pm
content: You should ask them. Not us.

author: ali_asadzadeh
author_rank: Super Contributor
timestamp: February 25, 2019, 02:04:42 pm
content: QuoteI have asked and they did not responded!
Please name (or link to) a short project - Page 1
Forum section: electronics / general

author: RoGeorge
author_rank: Super Contributor
timestamp: February 24, 2019, 12:53:02 pm
content: Collecting ideas of fun or interesting projects that are less than a day-work short.You know what, changed my mind: Everything goes, including longer projects or even bucket-lists!

author: RoGeorge
author_rank: Super Contributor
timestamp: February 24, 2019, 02:58:40 pm
content: He-he, this thread was a bet.Two hours have past, won the bet!

author: T3sl4co1l
author_rank: Super Contributor
timestamp: February 24, 2019, 03:07:10 pm
content: Assorted power supplies? I knocked together this module over the last week, about:12V input, 150-800V output, about 50W capacity. UC3843 based flyback (the two transistors are in parallel, and the output is +/- flyback, ground referenced for + output only).Cutesy kits? Learning projects? Oscillator, timer, amplifier, counter, wire up an MCU, sensor, IoT thing, what catches your fancy?Tim

author: NiHaoMike
author_rank: Super Contributor
timestamp: February 24, 2019, 04:07:42 pm
content: It's easy to hack Homeplug adapters to work over telephone lines, effectively making a really cheap source of high speed short haul modems. The particular pair shown gets about 600Mbps of real world bandwidth - a little more than 10000 times of what used to be considered the limit! (Granted, that's short distance.)

author: HalFET
author_rank: Frequent Contributor
timestamp: February 24, 2019, 04:24:27 pm
content: An analog vocoder is also kind a fun to make.
Is it possible to get more space for personal messages?  - Page 1
Forum section: electronics / general

author: Philipp23
author_rank: Newbie
timestamp: February 24, 2019, 04:24:03 am
content: HelloAs the title says, is there a way to get more space for personal messages? I have two messages inbox and the forum software says the inbox is already 40 percent filled. Maybe a donation to the EEVblog or the forum?I hope this is the right place to ask for this, I did not find another thread that had the same subject.Kind RegardsPhil

author: ataradov
author_rank: Super Contributor
timestamp: February 24, 2019, 05:00:04 am
content: Where do you even see this percentage? I have a ton of messages and they all are there. I did not even know there was a limit like that. It may be indeed something for new members.

author: BravoV
author_rank: Super Contributor
timestamp: February 24, 2019, 05:04:54 am
content: The OP just has 4 posts as I write this, hence limited PM access.This to minimize those spammer who freshly joined just to spam the forum.To OP, just wait and post abit.
Bunnie Huang on the supply chain security - Page 1
Forum section: electronics / general

author: bitwelder
author_rank: Super Contributor
timestamp: February 21, 2019, 02:23:56 pm
content: 'Bunnie' Huang at Bluehat IL 2019, on the many ways offered by the typical supply chain to subvert/modify/implant an IChttps://youtu.be/RqQhWitJ1As

author: TimNJ
author_rank: Super Contributor
timestamp: February 22, 2019, 08:59:39 pm
content: Very interesting. Was not aware of all of the packaging technologies available, and how (seemingly) accessible they are.
LCD class action lawsuit - Page 1
Forum section: electronics / general

author: lordvader88
author_rank: Frequent Contributor
timestamp: February 22, 2019, 02:00:43 pm
content: I missed this, no idea. Good for 12voltvids, he fixes a lot of stuff including LCDs

author: jackthomson41
author_rank: Regular Contributor
timestamp: February 22, 2019, 03:31:56 pm
content: some description would be nice as the video is quite boring and I can't keep up my interest.What is an Embedded System?

author: tsman
author_rank: Frequent Contributor
timestamp: February 22, 2019, 03:45:32 pm
content: Looks to behttp://www.lcdclassactioncanada.comOnly people that actually win in these class actions are the lawyers who'll take a large cut of the total awarded. Everybody else just gets a token amount refunded. In some cases, the "refund" has been stupid things like a discount on the store of the manufacturer

author: rhodges
author_rank: Frequent Contributor
timestamp: February 22, 2019, 06:10:35 pm
content: I think I got around $200 or so from the US LCD class action lawsuit. That was a few years ago, so I don't remember the exact amount, but it was more than I expected. During the time span, I probably bought three or four LCD monitors and one TV.