hybridfree/eevblog-posts huggingface dataset:
What is the difference between Hakko FX888D-29BY/P and FX888D-23BY? - Page 1
Forum section: electronics / general

author: cvanc
author_rank: Frequent Contributor
timestamp: January 19, 2018, 12:02:43 am
content: Hi all-What is the difference between these two (almost identical) models? The info I've found on the Web does not make it clear... thanks.

author: tooki
author_rank: Super Contributor
timestamp: January 19, 2018, 02:51:47 am
content: Didn’t think to google eevblog, didja? This came right up:https://www.eevblog.com/forum/projects/difference-between-hakko-fx888-29byp-and-fx888-23by/It says the difference is in the packaging style, that’s it.

author: MarkF
author_rank: Super Contributor
timestamp: January 19, 2018, 03:01:04 am
content: I haven't checked your exact part numbers. But,TEquipmenthas different numbers which have different accessories and tips.Also, ask for their eevblog discount.

author: cvanc
author_rank: Frequent Contributor
timestamp: January 19, 2018, 04:24:05 am
content: Quote from: tooki on January 19, 2018, 02:51:47 amI... did notBut I did do a general Google ("Googling"?) and it didn't show up. Odd.

author: tooki
author_rank: Super Contributor
timestamp: January 19, 2018, 02:02:30 pm
content: That is odd.But yeah, google site search (“searchterm site:example.com”) is one of my favorite things. 99% of the time it’s better than a given website’s own search. :/
aoyue int857a++ hot air station help needed. - Page 1
Forum section: electronics / general

author: Pandor
author_rank: Contributor
timestamp: January 10, 2018, 09:58:54 am
content: Hi,I've just bought a aoyue int857a++ station from the euro (german) supplier willtec.Now, i'm having difficulty figuring out how i'm supposed to mount the bracket/holder for the handpiece. As the unit did not come with any mounting hardware, nor are there any apperent screw holes on the left hand side of the unit...Maybe i got a bad unit from the factory?I contacted willtec, but all the do is tell me where to mount it, and send me stock pictures.If anyone with this unit could make a clear picture of how the bracket for the handpiece is mounted to the side of the unit, it would be greatly appreciated.Thanks in advance.

author: Pandor
author_rank: Contributor
timestamp: January 16, 2018, 08:44:47 pm
content: All fixed.It took a few mails, and a video for WilTec to understand what the problem was, but they finally shipped the hardware I needed.Had to take the backcover off to slide in the nuts where the holder should mount to.Case closed.
morse-code ribbon cable (for lack of a better description) - Page 1
Forum section: electronics / general

author: free_electron
author_rank: Super Contributor
timestamp: January 10, 2018, 08:34:14 pm
content: any idea where i can find this cable ( on 100m rolls. preferrably on ebay )

author: elecman14
author_rank: Unknown
timestamp: January 10, 2018, 09:04:47 pm
content: No luck on ebay. I looked for the product on Taobao and found out that it is referred to as UL2468 or 2468-26. Here is a source that you could order from:https://world.taobao.com/item/45414262362.htm. I have no experience with this seller (just picked a random one).

author: tooki
author_rank: Super Contributor
timestamp: January 12, 2018, 11:09:08 pm
content: Out of curiosity, what's the purpose of the markings?

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: January 13, 2018, 04:03:06 am
content: For the colour blind?

author: free_electron
author_rank: Super Contributor
timestamp: January 15, 2018, 08:14:00 pm
content: Quote from: Neomys Sapiens on January 13, 2018, 04:03:06 amthis is cheaper than colored ribbon cable and easier to make. the marking is just an ink squirter.note that this cable is NOT 2.54mm pitch ! it is not for double row idc connectors but for those single line crimp connectors like JST PH XH and likes. It is a 2mm pitch.this is used to make harnesses. you split off the wires one end can have a 16 pin and a 4 pin and the other side a bunch of 3 pins , 4 pins or whatever. they are commonly used in TV and audiovisual equipment to interconnect circuit boards.i want to use them in a 3d printer. i have a large 20 pin on one side and then a bunch of 2 3 4and 5 pins on the other end going to various elements. the striping makes it easy to keep follow the wires...
SORTED: Blackjack BK4050 (fuse help) - Page 1
Forum section: electronics / general

author: cowasaki
author_rank: Frequent Contributor
timestamp: January 12, 2018, 11:26:17 pm
content: Probably about a year ago I stole the fuse from my BK4050 to repair a computer that was needed urgently. I kept the blown one in a safe place to order a replacement but forgot and obviously I've now forgotten where the safe place is. There is no sticker stating the rating but looking at it I think I can guess that it's a 20mm glass fuse. I would also guess that it's a 3amp but it could possibly be 5amp. If someone who has one could possibly check it would help me out.Many thanks.

author: vindoline
author_rank: Unknown
timestamp: January 13, 2018, 01:51:54 am
content: Sorry, I don't have that model. But just give Circuit Specalists a call. I'm sure they can help you.

author: cowasaki
author_rank: Frequent Contributor
timestamp: January 16, 2018, 12:56:11 am
content: Quote from: vindoline on January 13, 2018, 01:51:54 amI did do originally but they didn't know. They were very helpful though and a few days later I've come home to an email telling me the size and rating. I worked out that it was a 5/20 fuse and was sure it would be 3 or 5 amp. They confirmed it was 3 amp so I can replace that tomorrow to mend my son's phone :-)
Ascom UNITE Connectivity Manager - Page 1
Forum section: electronics / general

author: Lord of nothing
author_rank: Super Contributor
timestamp: January 11, 2018, 12:01:05 pm
content: HiSome special question again.I know everyone will ask them self what an Ascom UNITE Connectivity Manager is.Its simple answer. Ascom offer Wifi Phones who I got cheap from Ebay. There is an USB Programmer who cost new ~100€but is necessary to change the settings. The Main problem is just Voice work with an Astarisk the other things refuse to work. Ascom told me for the other features like Text Messages and what I need PTT the Ascom UNITE Connectivity Manager is required. It look like its just an peace of hardware with proprietary stuff inside.So does anyone here know how the Ascom UNITE Connectivity Manager work? Or an huge VoIP Forum who someone could know about? My biggest concern is there are some Licence or other stuff required to get it work who is not available. I got from Ascom the Software for the Phones with an trick but i think the dont give me Software for that.

author: stj
author_rank: Super Contributor
timestamp: January 11, 2018, 05:05:06 pm
content: so it's a voip handset?how does it link, wifi to your router - then pots?or is it linking to the world using SIP etc?a link would be interesting!

author: Lord of nothing
author_rank: Super Contributor
timestamp: January 11, 2018, 09:23:51 pm
content: what kind of link do you need?The Phones are the well known i62.The are SIP Phones and support some other standard to but i dont know how the called.I am not home now to look into the phone. I run an Virtual PBX just for internal communication.For external we use your Cellphone. The Phone are just "normal" Wifi Clients (without an Browser!!!!).Roaming and Power Saving Mode requiere some special IEEE Standard who I have not in my mind right now.

author: Lord of nothing
author_rank: Super Contributor
timestamp: January 13, 2018, 04:07:59 pm
content: @stjIf you have questions about the Phone I try to answer it. Now I am back home and can look into the Config Software.

author: stj
author_rank: Super Contributor
timestamp: January 13, 2018, 07:13:03 pm
content: you answered them,i had not heard of that fone.
Yihua 937D+ display issue - Page 1
Forum section: electronics / general

author: ghozer
author_rank: Newbie
timestamp: January 13, 2018, 02:25:53 am
content: Hi, new time EEVblog forum user, but long time watcher here..I recently got a Yihua 937D+, and the center digit on the display is messed up, I removed and inspected the control board and can't see any obvious faults, dry joints or issues, and wondered if anyone has any ideasIt heats up, and seems to work fine otherwise - the seller gave a 70% refund (they said it would cost more to return and replace, hah)
Soldering/Rework Equipment Question - Page 1
Forum section: electronics / general

author: MedSpark
author_rank: Contributor
timestamp: January 12, 2018, 05:02:26 am
content: We just built a soldering/rework station and I'm wondering if there's anything else we should add to be as efficient and capable as possible with respect to electronics prototyping.We do plan to purchase a dedicated hot-air/rework system, reflow oven, and improved fume extractor eventually.FM-206 3-Port Rework SystemFM-2027 Soldering Iron (70W)T15-BCM2 Shape-2BC Bevel with indentT15-BCM3 Shape-3BC Bevel with indentT15-D08 Shape-0.8DT15-D16 Shape-1.6DT15-D24 Shape-2.4DT15-DL32 Shape-3.2DLT15-JS02 Conical Bent Tip R 0.2/30 Degree, 1.6 x 7.9 mmFM-2030 Soldering Iron (High powered 140W)T22-D52 Shape-5.2DT22-K Shape-KFM-2024 Desoldering ToolN3-08 NozzleN3-16 NozzleN3-23 NozzleFM-2029 Rework Tool (Hot-Air Type)N4-01 NozzleN4-02 NozzleN4-03 NozzleN4-04 NozzleFM-2032 Micro Soldering Iron (48w)T30-IT30-JT30-D06T30-KNNordson EFD Ultimus Ultra 2400 Fluid Dispenser (for Flux and Solder Paste) / Vacuum Pickup Tool (for Small SMD Components)Nikon SMZ-10 Microscope with 6.6x to 40x Zoom and Ring IlluminatorAdditionally:TweezersMany Sizes of Foam SwabsIPA BottlesNitrile Gloves (S/M/L)Plastic and Fiberglass BrushesSolderSolderwickThanks in advance for the help!
High Quality Desoldering Station? - Page 1
Forum section: electronics / general

author: lmaokore
author_rank: Contributor
timestamp: January 07, 2018, 08:21:25 pm
content: Looking for a high quality desoldering station <$1000 without the need for seperate shop air. I've seen the ZD985 but it seems to need a lot of maintenance and low quality. The FR-300 also has issues with clogging. Any good options?

author: RayRay
author_rank: Frequent Contributor
timestamp: January 09, 2018, 04:02:34 pm
content: Well, you've got the Chinese S-995A/S-993A/S-998P
Digital x-ray panel sensors teardown & reverse-engineering - Page 1
Forum section: electronics / general

author: ChunkyPastaSauce
author_rank: Unknown
timestamp: January 06, 2018, 07:45:53 am
content: TestDisk has saved me many times (https://www.cgsecurity.org/wiki/TestDisk) with data loss on HFS FAT32 and NTFS.....supposed to handle ext 2 file recovery.ext4magic (http://ext4magic.sourceforge.net/ext4magic_en.html) and extundelete (http://extundelete.sourceforge.net/) work for ext 3 & 4, but have never used them -http://troglobit.com/2016/03/24/disaster-recovery/Maybe consider imaging partition first, but only if doing so writes nothing to the partition being imaged... (using dd?...not familiar enough with linuxhttps://wiki.archlinux.org/index.php/disk_cloning).Nm saw someone say it's ubifs on youtube. Nand dump from other unit?.. maybe apps wont be on the bad blocks.
[PRODUCT REVIEW][JUNK] Microscope Polarizer 78 LED Ring Light  - Page 1
Forum section: electronics / general

author: sn4k3
author_rank: Frequent Contributor
timestamp: January 04, 2018, 07:59:31 pm
content: Today i receivethis producta Microscope Polarizer 78 LED Ring Light, in a hope to remove light reflections with minimal setup and things on the way like a gooseneck... Packing was great and secure but my happiness goes down when i see dirt on lens, finger prints and dust from inside. I had instantly clean lens with proper solution still not from inside, just the front and back sides.The led ring is robust and thick, way better than the cheap 20€ led rings.It fits well at my lens (Please note this don't include the plastic ring to protect the main or barrow len body, you need to buy one or use the already inlcuded from other led rings).So far:Good:LED Ring Body, PSU bodyBad:Maybe PSU could fit inside ring, dirt on lens!, no plastic ring protector, PSU metal case without earthMy setup:AmScope SM-4TP with 0.5x Barrow LenA cheap 144 LED Ring from china1080p Camera with 0.35x c adaptorHow do i test:Lowest and Max zoom, Always with max brightness from both led rings. Images was taken with my microscope camera but from eyepieces the results are the same.So attach this thing was easy like any other led ring, it's the same fixture method.After install it i have turn on my camera and my trusty dell monitor, still another surprise... Glare on lensThe glare gone when turn on LEDs and ajust swivel but i can fell my eyes different it don't seen right when you first put your view on that thing, with some time working under it your brain will ignore and make a perfect image but that can damage our eyesight so this is a bigNext i tried to compare images from both LED rings to see if this polarizer lens does something but the poor quality of it made me return back to what i had.It even can't perfect focus!The focus problem is another bigAnd last there are some image comparing:So in conclusion don't buy this, it's junk!Good if you can replace the lens yourself for a high quality ones because the included lens are junk.Also the max led setting is not very bright due only 78 lens instead of 144.Moving forward, soon i will test another LED Ring Polarizer with 144 leds that seens high quality with a cost of 250 EUR, huge price difference and lens seens much better...
Colophonium bottle panelling - needs attention? - Page 1
Forum section: electronics / general

author: Kuro
author_rank: Regular Contributor
timestamp: January 04, 2018, 06:04:57 pm
content: I bought a bottle of colophonium (from Interflux, ROL0), it hasn't been used and is nearly entirely full. It's not been used yet. Now I noticed that the bottle has panelled on three sides, either because the plastic is allowing some gas to pass through the plastic of the bottle or because the colophonium reacts with the oxygen that's remaining under the cap. Considering how little there can be under the cap, I'd say some component of the colophonium is gassing through the plastic.Do I need to worry about what's coming out (as in reacting with other materials in the closet)? Would it be better to rebottle colophonium in glass bottles, also because this would increase shelf life?

author: tooki
author_rank: Super Contributor
timestamp: January 04, 2018, 07:06:48 pm
content: FYI, colophonium is called “rosin” in contemporary English, at least in the contexts of electronics, music, cooking, and sports. (In English, colophonium is considered an archaic word for it. Most people won’t know it. I only do because of German.)Rosin doesn’t evaporate. (Give it enough time and it becomes amber, remember?) So it is necessarily the solvents that are escaping. I guess a better bottle wouldn’t hurt. Glass would work, but my flux came in HDPE bottles, and it’s fine several years later. Same with IPA stored in that.

author: Kuro
author_rank: Regular Contributor
timestamp: January 04, 2018, 08:03:49 pm
content: Thanks! I'll hunt for a more suitable bottle then before I have to use solid flux
3in1 853D scam or not? What do you think? - Page 1
Forum section: electronics / general

author: vgamesx2
author_rank: Regular Contributor
timestamp: December 29, 2017, 07:08:54 am
content: Edit: One the sellers I mentioned has already pulled the listing or was banned, so now there's only the one and thus I updated the link to go directly to the listing.Edit2: The listing was removed and still had plenty of stock just a few hours earlier, so I'm gonna go out on a limb here and say it was probably a scam,I really wish it were true.So... I was thinking about getting a hot air rework station when I stumbled upon a couple listings for those 3in1 stations which have "too good to be true" written all over them at the insanely low price of under $30, what do you guys think? It must some sort of scam right..? Neither sellers have much in the way of feedback and the one from billyjack was apparently listed just yesterday.Although that said, it does seem worth the risk in hoping it's legit since it (hopefully) shouldn't be too difficult to get my money back.https://www.ebay.com/itm/3-in-1-853D-SMD-DC-Power-Supply-Hot-Air-Iron-Gun-Rework-Soldering-Station-Welder/263407947058?hash=item3d54564d32:g:ZnAAAOSwY~1aRKGE

author: Mr. Scram
author_rank: Super Contributor
timestamp: December 29, 2017, 08:38:00 am
content: Quote from: vgamesx2 on December 29, 2017, 07:08:54 amAll the other listings are rougly $100 and there is a single postive feedback comment on the cheap seller. It has all the signs of being a scam.

author: carlz0r
author_rank: Newbie
timestamp: December 30, 2017, 09:40:17 pm
content: I have the 2-in-1 version (no DC power supply), got it off Aliexpress for roughly $75 CAD. Works pretty well, though when the reflow gun gets up to temperature it puts a lot of noise back into the mains, the LED light in my room starts to pulse quite badly.
Dynamic Receivers - Page 1
Forum section: electronics / general

author: granlo78
author_rank: Newbie
timestamp: January 03, 2018, 05:27:14 am
content: Does anyone know where to purchase a top of the line dynamic receiver?

author: Richard Crowley
author_rank: Super Contributor
timestamp: January 03, 2018, 06:28:05 am
content: There could be a dozen very different meanings of "dynamic receiver".Please explain what you mean sufficiently so that we can understand.

author: granlo78
author_rank: Newbie
timestamp: January 03, 2018, 08:38:23 pm
content: I am referring to dynamic receivers in headsets like the one found on this page.https://www.stetron.com/stetron-introduces-new-dynamic-receiver/

author: Richard Crowley
author_rank: Super Contributor
timestamp: January 03, 2018, 10:07:39 pm
content: Depending on what you mean by "top of the line", I suspect that the drivers used high-end headphones are custom OEM designs that are not available to random buyers. Depending on why you are asking, you could consider using replacement drivers for your favorite headphones (depending on availability and economics for your undisclosed project).There are probably dozens of vendors in Asia who make headphone drivers like that. Note that many or most of them probably have minimum quantity purchases of hundreds, thousands or even 10s of thousands of units.
Modded Velleman LAB1 - Page 1
Forum section: electronics / general

author: thobo
author_rank: Contributor
timestamp: February 19, 2015, 03:57:18 pm
content: Inspired by BitBasteleiI modded my Velleman LAB1 having more handy voltages and a DMM without needing a 9V batterie, changed 3V to 3.3V and 4.5V to 5V on the PSU part. Have not modded the Label for 3.3V but could paint over the "4." from the 4.5 setting with an Edding to get 5V Label.The isolated DC DC converter is supplied by 9V AC used by the Backlight, rectified the voltage is high enough, because the DC DC converter is a 12V to 12V type. The 12V is then regulated to 9V by a 78L09 to get a clean Input voltage for the DMM.For isolating it against other stuff inside the Device I putted the PCB into a plastig bag and used a zip tie for fixing it. Because the DMM consumes only a few mA's, heat is not a topic.On the PCB of the Power supply, on the left bottom side are the R3 and R4 which needs to be replaced, they are the bottom part of the voltage divider used for the LM317. The top resistor of the voltage divider is fixed to 68 Ohms (R2). R3 is 96,3 and should be replaces with 111,52 and R4 is 176 and should be replaced by 204 Ohms.The result is not that bad, especialy the 5V are spot onBTW I would never recommend this Lab1, because its not its money worth, just a cheap 3,5 digit DMM, a poor PSU with discrete Voltages and a soldering iron which is ok, but not the reason to buy it.I had it for several years and used only the iron, but with the modds its more handy for just fast setups on breadboards.

author: thobo
author_rank: Contributor
timestamp: February 19, 2015, 04:02:50 pm
content: Some more pics

author: thobo
author_rank: Contributor
timestamp: March 04, 2015, 08:55:23 pm
content: A little add on, a voltmeter shows real output voltage.

author: reseto
author_rank: Newbie
timestamp: December 30, 2017, 11:30:56 pm
content: Quote from: thobo on February 19, 2015, 03:57:18 pmHello @thobo,Could you tell me the list of components you used...In your images I see:- 78L09- B1212LS-1W- Diodes:value?- big electrolytic capacitor:value?- small electrolytic capacitor:value?- "orange" capacitor?:value?Also, if is possible the circuit diagram, although maybe I can extract it from one of the images you published.Thanks
Weller wmd3 - Page 1
Forum section: electronics / general

author: Charlie86
author_rank: Regular Contributor
timestamp: December 27, 2017, 09:15:24 am
content: Hi,I have 2 questions about this station.1. What does it mean "duty time 30sec." on a label? I a m not allow to use hot air or vacuum for more than 30sec in raw? This is pretty short time,..2. Second question, is it possible to modify station to supply vacuum for pick up tool? Like newer weller stations? Can I attach pick up tool to vacuum desoldering nozzle?Thank you

author: rbm
author_rank: Regular Contributor
timestamp: December 27, 2017, 04:51:33 pm
content: 1. Yes, the manual publishes the duty cycle as 30 seconds ON and 30 seconds OFF for the pump. It's physically small and cooling is at a premium in such a small enclosed space.2. That should be possible. The specified vacuum is 0.7bar with 20l/min flow. That should be sufficient for adapting a vacuum pickup. I have two of the WRS1002 stations that preceded this one and was looking at this modification.

author: Charlie86
author_rank: Regular Contributor
timestamp: December 28, 2017, 12:04:02 am
content: Thank you for yours informations. Can you suggest any god pick up tool? Weller wvp is a little bit overpriced for me

author: rbm
author_rank: Regular Contributor
timestamp: December 28, 2017, 01:07:03 pm
content: Hi,I've not built a DIY vacuum pickup so I don't have any experience to share. I might end up steering you in the wrong direction if I took a guess. Other people have converted manual pickup tools for use with an aquarium pump and maybe those Internet articles are a good starting point for your experimentation. Hopefully, though, someone else with experience will comment in this thread.
Choosing a borescope/inspection camera  - Page 1
Forum section: electronics / general

author: e100
author_rank: Frequent Contributor
timestamp: December 27, 2017, 07:03:25 am
content: Does anyone have any recommendations for a camera that can be used to inspect those hard to reach places inside equipment?The cheapest ones I see on Ebay seem to use a Wifi transmitter which presumably requires a corresponding app running on a mobile phone screen. Is it worth spending the money on one with a built in display?

author: mrubbert
author_rank: Contributor
timestamp: January 01, 2018, 10:14:09 pm
content: You will have much better display on phone or tablet.I did order 4th one, now with wifi and hopefully i can use my dirty samsung garage tablet without OTG. Only for compabillity issues for that device.They explain better somewhere in this link-page, i am not saying this is right for you. Some focus only in short distance and others not - focal distance, so read about what you need.https://wiki.ezvid.com/best-inspection-cameras-for-androidOr google test of inspection camera.

author: AllTheGearNoIdea
author_rank: Unknown
timestamp: January 03, 2018, 07:47:10 pm
content: I have bought a couple of the type that have a long cable with camera at one end and lcd monitor at the other. I have been very disappointed with picture quality poor contrast and resolution. I would just say try before you buy unless very cheap. I think the gun people tend to have good quality bore scopes but very expensive. I have also seen medical endoscopes on eBay from time to time prices vary but I assume they have amazing optics.Chris
MILL-STD-2000 difference ? Weller WXMP vs WXMP MS - Page 1
Forum section: electronics / general

author: ErnieEngineer
author_rank: Contributor
timestamp: December 20, 2017, 07:40:15 pm
content: After a lot of poking around it looks like there is two versions of a soldering iron that appear to be practically identical. The version with the trailing “MS” adheres to some military standard and costs more.Is there *really* a difference, or are they just charging more because govt customers will pay more?Sure they are both fine, but this has me curious if anyone knows the truth.Thanks!See :http://www.testequipmentdepot.com/weller/pdf/wxmpmsset_data.pdf(MILL version)http://www.testequipmentdepot.com/weller/soldering/soldering-iron-sets/wx-micro-solder-iron-12v-55w-200-to-850degreef-wxmpmsset.htm(MILL version)http://www.testequipmentdepot.com/weller/soldering/soldering-iron-sets/wxmpset-wx-series-micro-solder-iron-40w-0052920499.htm(regular version)

author: Mr. Scram
author_rank: Super Contributor
timestamp: December 20, 2017, 07:42:25 pm
content: Just like is the case with calibration reports, pieces of paper that supply traceability and accountability are worth something. I'm not sure that's the case here, I'm curious to learn whether there is any physical difference.

author: Fludo
author_rank: Regular Contributor
timestamp: December 21, 2017, 03:59:03 pm
content: It could just be a calibration of the iron after manufacturing, or they use a more accurate feedback sensor.Here's what the spec calls outMIL-STD 2000 requires that the soldering iron:Idling tip temp be within +- 5.5C (10F) of set valueThe resistance between tip and workstation ground never exceed 5 ohmsThe potential difference between tip and workstation ground never exceed 2mV RMSIron design should provide zero voltage switchingESD safe
Best coil for pick-up EMF fields (in a amplifier)? Telephone Pick-Up Coil, DIY? - Page 1
Forum section: electronics / general

author: Tobias Claren
author_rank: Newbie
timestamp: December 17, 2017, 08:01:01 pm
content: Hallo.There are "telephone pickup-coils".But in different versions.For example:"CP-22" with 20x22mm:Coil DCR : 390ohm+/-10%L=112mH +/-10% @1KhzQ=1.5 +/-10% @1Khz"CP-36" with 36x25mm:Pick up coil DC resistance (DCR) approx : 250?+/-10%L= 120mH +/-10% @1KhzQ=2.1 +/-10% @1Khz"Q" = Quality?Are there other qualities?Better quality? Higher than "2.1"?Better to solder yourself?Higher sensitivity on many frequencies.Thanks,Tobias Claren
YIHUA 908D soldering iron auto sleep/shutdown? - Page 1
Forum section: electronics / general

author: seanspotatobusiness
author_rank: Regular Contributor
timestamp: December 15, 2017, 12:56:53 pm
content: I was hoping someone with the YIHUA 908D soldering iron might tell me does the iron have separate sleep and shutoff functions (i.e. after 10 minutes the temperature drops to 200 °C or whatever and after 20 minutes it switches off completely) or is it just one of those? If it's just one of those functions then which is it? Thanks!
My Flux Syringe gizmo... :) - Page 1
Forum section: electronics / general

author: ChrisLX200
author_rank: Unknown
timestamp: December 01, 2017, 12:54:59 am
content: I got fed up trying to control the flow of my (expensive) tacky flux from a stiff syringe, so I made this adapter which uses a screw threaded housing for the syringe. Slip the syringe in and screw the top on, an easy turn of the top dispenses small amounts of flux. Sorted

author: Whales
author_rank: Super Contributor
timestamp: December 01, 2017, 08:34:30 am
content: QuoteLathe envy increasing...

author: cowana
author_rank: Frequent Contributor
timestamp: December 01, 2017, 09:12:29 am
content: Looks like one of these:https://www.banggood.com/Magnetic-Heat-resistant-Silicone-Pad-Desk-Mat-Maintenance-Platform-Heat-Insulation-p-1151450.html?I have the slightly smaller version (without the screw holding area), and it's excellent:https://www.banggood.com/DANIU-34x23cm-Heat-Insulation-Silicone-Pad-Desk-Mat-Maintenance-Platform-BGA-Soldering-Repair-Station-p-1105515.html

author: ChrisLX200
author_rank: Unknown
timestamp: December 01, 2017, 09:20:07 am
content: Quote from: 3roomlab on December 01, 2017, 08:38:54 amIt's one of those silicone solder mats, supposedly heat resistant up to about 500degC. Yep, a China product bought off ebay

author: Pitrsek
author_rank: Regular Contributor
timestamp: December 15, 2017, 10:07:53 am
content: Are those silicone mats ESD safe?
uRad Air Quality Monitoring - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: November 10, 2017, 09:01:42 am
content: Radu was kind enough to send me the new model A3 air quality monitor. It has sensors for Gamma radiation, formaldehyde, CO2, tVOC Air quality +temperature, barometric pressure, air humidity, and a laser scattering sensor for PM2.5 particulate matter.https://www.uradmonitor.com/productsVery cool!See my live data here which is installed on the balcony outside my office.https://www.uradmonitor.com/?open=820000BE#

author: thm_w
author_rank: Super Contributor
timestamp: November 15, 2017, 12:43:35 am
content: Was going to add noise measurement to my meter as well, its a good idea for industrial environments.Personally I found CO2 and PM2.5 to be the most useful for air quality issues where I am.https://hackaday.io/project/21912-portable-air-quality-monitor/Your numbers look very good, where it is. I would install the monitor inside the lab though, that is where I would be most concerned about soldering smoke, lack of ventilation, etc.Unless you have heavy industry or wildfires in your area, outdoor quality willgenerallybe good.

author: EEVblog
author_rank: Unknown
timestamp: November 15, 2017, 01:08:50 am
content: Very cool full dashboard display:https://www.uradmonitor.com/tools/dashboard-04/?open=820000BE

author: nidlaX
author_rank: Frequent Contributor
timestamp: November 15, 2017, 05:37:56 am
content: Looking good! What's the cost of the A3?

author: radhoo
author_rank: Contributor
timestamp: December 09, 2017, 09:32:03 am
content: Hello nidlaX, you can get them on IGG at a lower rate:https://www.indiegogo.com/projects/air-quality-monitoring-network/x/7951265#/. This batch will roll out in April and includes the Ethernet/Wifi variants.Otherwise, I have a few on sale on the website directly:https://www.uradmonitor.com/products/?sel=4&pp, and on Tindie.

author: madsbarnkob
author_rank: Frequent Contributor
timestamp: December 14, 2017, 07:31:23 am
content: Wow!I really like the new dashboardEdit, fixed after restarting browser, just had too many tabs open at the timeChanging date range does however not update the graph, there is the little loading icon, but graph and date range does not change. (Google Chrome Version 63.0.3239.84 (Official Build) (64-bit))Really suits my old first version unit:https://www.uradmonitor.com/tools/dashboard-04/?open=11000003#I hope this new dashboard will also be available through the API at some pointAt the moment I have the graph embedded on my own website, in wordpress,http://kaizerpowerelectronics.dk/everyday-science/radiation-monitoring/I am writing a guide on how to do this for the uradmonitor blog.
Hot air rework option/alternative question  - Page 1
Forum section: electronics / general

author: Nightmare4u2c
author_rank: Contributor
timestamp: December 09, 2017, 02:39:02 am
content: Ok another hot air rework slash heat gun question. There is heat guns with more control over heat and air flow available and don't have the safety issues that come with the China stations. Question is how much more control do you need outside of different tip sizes? Or is it a comfort issue?https://www.lowes.com/pd/Kobalt-1-500-Watt-Professional-LCD-Heat-Gun/50157920https://www.homedepot.com/p/Wagner-Furno-750-Heat-Gun-0503064/206723944https://www.homedepot.com/p/Milwaukee-Variable-Temperature-Heat-Gun-with-LED-Digital-Display-8988-20/100609355

author: Nusa
author_rank: Super Contributor
timestamp: December 09, 2017, 06:18:31 am
content: Those are all intended for paint stripping and general handyman type applications. They're not suited for pcb rework, although people have occasionally tried to use them that way out of ignorance, desperation, or as a joke (most videos are in the last category...they only do as well as they do because they're already experts).You need stable temperature control, air flow control, and an appropriate nozzle for the task. Your general purpose nozzle is probably going to be smaller than your little finger.

author: Electro Detective
author_rank: Super Contributor
timestamp: December 09, 2017, 09:08:29 am
content: There are variable control heat guns available for paint stripping and heat shrinking,and nuking garden weedsI have a Black And Decker model, and quite confident it would perform ok with a nozzle addon come Jerry Rig mod to direct the heat where it needs to go on a PCB.Yes, it's not as good/accurate as my proper dial up temp controlled thingie, but hey, whatever gets the job done if short on tools...assuming you want to get paid

author: AndyC_772
author_rank: Super Contributor
timestamp: December 09, 2017, 12:49:08 pm
content: I've had good results reflowing larger components with a Steinel HG 2310 LCD. Crucially, it has highly controllable air flow and temperature, which a cheap paint stripper won't.It'll still blow small parts across the PCB, but for reflowing components like D2PAK, it's not a bad option IMHO.

author: Nightmare4u2c
author_rank: Contributor
timestamp: December 10, 2017, 03:23:16 am
content: Quote from: AndyC_772 on December 09, 2017, 12:49:08 pmOk so there's a good point the one you referenced appears to have a thermocouple built in to maintain temp. Which I don't think the paint stripper versions have.Ultimately I'm looking for the best bang for your buck setup like everyone else. I know you can make things do what you need in a pinch. I've thought of the China hot air systems, but, not looking to add to my project list either.
Win 7 x 64 drivers for sonix Camera sn9c102 - Page 1
Forum section: electronics / general

author: SPRX
author_rank: Regular Contributor
timestamp: December 20, 2017, 12:26:15 pm
content: I have a Microscope (3.5X-180X TRINOCULAR BOOM STEREO) with a sonix Camera sn9c102, but cannot use it with Win 7 x 64 now.I purchased it few years before, and drivers comes with it is, i think, xpI have searched drivers in the I'net, but it is very hard to find any compatible driver for x64 win7.Any idea, or known driver for this puppy if someone tackle similar issue getting it back to live.( Hardware id shown in the device mgr is: USB\VID_0C45&PID_602D&REV_0101 )

author: cdev
author_rank: Super Contributor
timestamp: December 20, 2017, 01:11:34 pm
content: Can't you find them on the microdia web site?
Mantis Classic - glass filters - Page 1
Forum section: electronics / general

author: philpem
author_rank: Frequent Contributor
timestamp: December 06, 2017, 11:35:00 pm
content: Hi folks,I've just been gifted a "well loved" Vision Engineering Mantis - what appears to be the old Classic model. It has 2x and 4x objectives (though naff all working distance on the 4x, sadly) fitted, and even came with the table mount. Screwed into the bench rather nicely.Sadly the two glass filters are broken. They look like CTB filters - tungsten to daylight balancing filters - but in an odd shape.Does anyone have a couple of spares knocking about, or know of a spares source?I'm also toying with the idea of modding the illuminators - make up a custom light with both UV (for checking conformal coatings) and white (for everything else) LEDs. Has anyone gone down this road? Looks like it'd be easy to bring a few wires out of the switches.Cheers,Phil.
Advice needed for Power Supply and Desoldering and Isolation - Page 1
Forum section: electronics / general

author: skozzy
author_rank: Newbie
timestamp: November 30, 2017, 02:57:29 am
content: Will keep it simple. Seeing there is so much 'fake' rip offs getting around a novice like myself is likely to get stung and waste money.So, I am after advice 'where' and 'what' to purchase for:1. Electric Vacuum Desoldering station.2. Isolation Transformer3. Bench Power Supply(s), Not sure on the voltage/amp ranges needed, I have several pinball machines I have collected over the years that need some TLC on the boards as well wanting to play around more with DIY projects, specially solar stuff and possibly Lithium battery projects as well.Cost is a big thing being a pensioner and need to look for low price range stuff. (hobby level gear).Yes I did read and search etc. and the more I read the more confused I get.

author: Mr. Scram
author_rank: Super Contributor
timestamp: November 30, 2017, 04:29:45 am
content: It's a bit of a shot in the dark for others when so little information is supplied. Can you tell us what you've looked at and what's confusing you, what your workshop currently contains, what projects other than pinball machines you might want to tackle and why you need the indicated supplies?

author: jcw0752
author_rank: Contributor
timestamp: December 06, 2017, 04:01:43 am
content: I have been very satisfied with the Zhongdi ZD 985 desoldering station. Here in the US they cost about $150 and are marketed under several aliases. Consumables are reasonable too. For my own shop I have modified a POWERVAR conditioner into an isolation transformer. For bench experimentation a two channel 30 volt 3 amp power supply should work well for you. If you have the time you can build one using parts and pieces. Here is a picture of the desoldering station. The bench supply in the picture was built for $35 using salvaged parts and DC to DC converters and meters from China.John
Recommendation for Small SMT Line - Page 1
Forum section: electronics / general

author: radiostuff
author_rank: Contributor
timestamp: November 26, 2017, 09:06:13 pm
content: Can anyone with firsthand knowledge recommend an SMT equipment manufacturer for small-to-medium production volume? On a monthly basis, we'll be doing about four protoboards and 5000 production boards per month. We build on 4-layer boards, use large BGAs for RAM(BGA-96), and stick to 0402s for passives. On average, we have 100 uniques per board, with a total part count of 400.Also, has anyone used the LPKF PCB fabrication machines?

author: garboui
author_rank: Regular Contributor
timestamp: November 27, 2017, 12:15:14 am
content: Check out the ASM line of machines. Their small E-Siplace machine likely will do that volume and will definitely have the placement capability.

author: radiostuff
author_rank: Contributor
timestamp: November 27, 2017, 12:23:52 am
content: What would you estimate the cost of that machine to be?

author: garboui
author_rank: Regular Contributor
timestamp: November 27, 2017, 12:35:18 am
content: PM sent
Unknown DC Power supply - Identification help? - Page 1
Forum section: electronics / general

author: eamondo2
author_rank: Newbie
timestamp: November 28, 2017, 03:10:30 am
content: So the electronics shop where I work has a lot of random hardware in storage, everything from an espresso machine to chemical synthesis equipment. Looking to make some space, I dug out this sealed box that contains what appears to be a high voltage DC power regulator/buffer. Approximately 9 450v 1500uf capacitors, impressively solid bus bars, and a massive heatsink sitting over several SKIIP39GA IGBTs. I have tried to ascertain a model name from the silkscreen markings on the mainboard, but have not found any results. Any help in identifying it would be appreciated, if it is worth something it would be a shame to scrap it for parts towards repairs. I've attached photos of the main sides of the board, as well as a closeup of the serial number.https://imgur.com/a/jHtH2

author: Gregg
author_rank: Super Contributor
timestamp: November 28, 2017, 03:19:53 am
content: It looks like it is for a 3 phase UPS.

author: eamondo2
author_rank: Newbie
timestamp: November 28, 2017, 03:07:07 pm
content: Doing some more digging, I believe it to be part of an Eaton Powerware UPS. The only photos of a similar board I have found are for the 30KVA model, which has a similar board but with fewer capacitors and a smaller heatsink.This is the link to the blog with a teardown of what seems to be a smaller model.http://kaizerpowerelectronics.dk/electronics/teardown-eaton-powerware-30-kva-ups/The board I have would seem to be part of a much higher capacity model.EDIT:Looking at the information on the original shipping box, the board seems to be from an EATON 9395 Power Xpert UPS. Still trying to find a part name so we can maybe sell it instead of scrapping. I figure it could be worth something, as it is brand new still in a anti static wrap.

author: madsbarnkob
author_rank: Frequent Contributor
timestamp: November 28, 2017, 09:13:31 pm
content: Hi EamonIt was my blog post that you found.EATON 9395 Power Xpert is a serious system and I think it would be hard to find someone with a installation like that, that needs that exact part. They would most likely just call Eaton for repair/service/spare parts.I think it represent a very little value, even if taken apart for the components, especially because the skiip IGBT modules are hard to reuse due to their pressure point contacts and the electrolytic capacitors are small.Either you strike luck and sell it at 50% of list price from Eaton (if you can even find out what that it) or I guess it will be around maximum 50-100$ worth in components to the right buyer.
IPL head teardown (How does it produce light?) - Page 1
Forum section: electronics / general

author: discomike
author_rank: Contributor
timestamp: November 19, 2017, 05:08:35 pm
content: So I found this IPL machine in the electronics recycling bin and I decided to take a few useful/interesting parts. It's supposed to produce broad spectrum pulsed light and I thought I would contain a normal xenon flash bulb to do so. It turns out that it doesn't and a quick google did not turn up an answer to how it works - so i'm asking for your help in explaining it.Overview of parts.Head with coolant hoses coming in.Head removed, wires coming in are 2 thick ones going to the light source, and narrow ones to peltier cooler.Bottom part removed (peltier cooler connects to the "nozzle" part (touching the skin) and prism to cool it.Prism is broken, not sure if this was the reason it was discarded or it happened afterwards. I used to have a collegue who designed these machines and he mentioned they had lots of problems with the reliability of the prisms and the suppliers not meeting their specifications.View down the light source, only two wires coming in and a resistor connected across the terminals (see first pic).Reflective foil on the outside of the prism to keep light inPretty =)The light thingy has glass rods glued to the front (are they lenses or is light produced in them?).They are placed over the gaps between the metal bars (is that where the light is coming from?).Metal bars are held on with conductive foam/glue.Beneath it is some other metal and maybe ceramic substrate/isolator. Cables are connected to either side as seen, is there some high voltage that causes arcing to produce light? This is in open air? Cables are 12 AWG which suggests decent current (and low voltage? they are not marked with any voltage but have fairly thick silicone insulation).What a coincidence.And that's all.Any input or comments is very welcome.

author: ruffy91
author_rank: Regular Contributor
timestamp: November 19, 2017, 07:51:15 pm
content: Looks like a solid-state laser.The rods are doped laser rods.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: November 19, 2017, 08:29:21 pm
content: Looks like high power laser diodes, or possibly just LEDs - bare die sandwiched between the metal blocks.I think the clear rods may simply be for focussing, though they could be doped for wavelength conversion.Peltier element will be for temp stabilisation to get the right wavelength.

author: discomike
author_rank: Contributor
timestamp: November 20, 2017, 09:12:23 pm
content: Ah thanks for the info, so this is probably a dermatological laser instead of an IPL. The machine was missing the front panel and control boards so I was just assuming it was supposed to produce a broad spectrum (uncoherent) light.I found a patent description on google with this picture (patent for a selft-contained unit):https://www.google.com/patents/US7118563And this excerpt from the description:QuoteThanks again, and I'll have a look under the microscope if I can see anything on the bars =)
Hacking Weller HAP-200 to work with WMD-3 station? - Page 1
Forum section: electronics / general

author: Lomax
author_rank: Frequent Contributor
timestamp: May 15, 2016, 12:14:26 am
content: I'm somewhat underwhelmed by the power of the HAP-1 "hot air pencil" that came with my Weller WMD-3 station, and curious about the possibility to get a HAP-200 to work with it. They're both 24V tools, and the WMD-3iscompatible with 180W irons - another 20W doesn't seem all that much (10%)... Famous last words and all that. I think the power requirement of Weller tools is encoded by a resistor value in the tool itself - if I were to mod a HAP-200 to say it only needs 180W, would the WMD-3 accept it, and more importantly, would it blow up?

author: tito39
author_rank: Newbie
timestamp: October 12, 2017, 09:59:42 pm
content: Hi I have "WMD-3" Weller and HAP-200 (not working) /Did you find out way how to tweak value .Thanks

author: Lomax
author_rank: Frequent Contributor
timestamp: November 20, 2017, 11:08:56 am
content: No, I haven't - I am hesitant to fork out for a HAP-200 before I know if it can be made to work. Weller use a resistor in the tool to tell the station how much power the tool requires. I suspect you can convince the station to supply power to a HAP-200 if the resistor is changed so that it looks like a 180W tool - but what value to use?Edit:Here are a couple of photos of the innards of my HAP-1. It seems likely that the power requirement is encoded by the two 200k ohm SMD resistors (a voltage divider?).
Dymo Rhino 5200 issue - Page 1
Forum section: electronics / general

author: jmoreland79
author_rank: Regular Contributor
timestamp: December 12, 2014, 04:51:22 pm
content: We recently purchased this labeler based on reviews and it's advanced capabilities. I was previously using an old Brother P-Touch PT-85 which was fine but has a basic feature set.The feature set of the Rhino is great, however the print quality leaves much to be desired. I've tried different tape cartridges and I still get the same result. I tried cleaning the print head and there was no change. The troubleshooting guide directs to use the "special brush" included with the labeler, but I didn't not receive this brush in the kit.Any ideas? I'm attaching sample photos of each. The Brother's print looks great while the Rhino's is "splotchy". Is this just the quality I should expect? Pretty poor for a $100+ US unit.

author: ajb
author_rank: Super Contributor
timestamp: December 15, 2014, 03:36:12 am
content: Haven't seen that on our Rhino 6000. Looks like it happens mainly on vertical areas, where more of the print head elements would be on at once. . . battery fully charged?

author: jmoreland79
author_rank: Regular Contributor
timestamp: December 15, 2014, 04:59:40 pm
content: Quote from: ajb on December 15, 2014, 03:36:12 amIt was the battery, apparently. I connected the AC adapter and it prints fine. I will give it a good charge and see what the result is.The battery was at 8.15V and it's a 7.4V battery, so I thought that would be sufficient voltage for it to operate normally...guess not.Thanks

author: ElektronikLabor
author_rank: Regular Contributor
timestamp: December 16, 2014, 08:27:56 pm
content: Quote from: jmoreland79 on December 15, 2014, 04:59:40 pmIs it possible to measure the battery voltage during the printing process? Maybe the voltage could drop while printing.

author: tech5940
author_rank: Unknown
timestamp: November 18, 2017, 02:36:31 am
content: I realize this is an old post but I purchased this labeler recently and wasn't 100% happy with the print quality on Vinyl labels. Anyway if you press and hold 8 while turning turning it on (release once on) you can adjust a setting up to 1200 which cleaned up the fine printing on my unit. Just wanted to share this tip I came across. It was actually listed as a solution for the 6000 by it worked fine on my 5200.