hybridfree/eevblog-posts huggingface dataset:
Aoyue Int2703A+ 220V to 110V - Page 1
Forum section: electronics / general

author: u666sa
author_rank: Frequent Contributor
timestamp: November 05, 2024, 06:51:11 am
content: I'm moving from one country to another country. This station served me well since 2014. Back in the day they used to have transformers sold right on official Aoyue website, you want 220V you could get it, you want 110V, you could get it. Nowadays, I contacted them, they don't carry transformers, but they could sell you a 110V station no problem. So I'm doing some research, in particular, do I want to take it with me and stick to WQ tips (T2 and WQ are kinda outdated these days in terms of size, also hot air is kinda outdated). Size wise, if transformer is taken out, it is light enough to be luggaged. So several questions.1. To change from 220V to 110V is it just transformer swap or would I also need the board?2. Where to get 110V transformer?3. I look at eBay, and no bueno finding a cheap used or broken station. Perhaps there are other places to search?Station is outdated, but good and usable, and if I don't take it with me, I just leave it with me, or sell it maybe for 50 bucks, which is a shame.

author: tooki
author_rank: Super Contributor
timestamp: November 05, 2024, 01:04:46 pm
content: The problem here is that swapping the transformer alone won’t make it work: the heating element in the hot air handpiece is mains-powered and would have to be swapped out, too.Why not just run it on a good-size step-up transformer?

author: thm_w
author_rank: Super Contributor
timestamp: November 05, 2024, 09:21:09 pm
content: Sell it locally if you have budget.Newer stations are way better than these.
KSGER STM32 V3.1S And QUICKO Tips Compatibility Question - Page 1
Forum section: electronics / general

author: AstutePauciloquent
author_rank: Contributor
timestamp: October 31, 2024, 06:41:29 am
content: Hello everyone,I have a question about the compatibility between KSGER And QUICKO Tips. I own a KSGER STM32 V3.1S and I recently purchased two QUICKO T12-BCM2 Hoof tips. Connecting them to the iron gives a flashing error message. I'm guessing these tips are not compatible with the iron?I will share a quick video I sent to the store owner on Aliexpress so you can get a good understanding of what is happeningI also contacted KSGER and they told me these QUICKO T12-BCM2 tip will be compatible.Should they be compatible, or are both of these tips faulty, what do you think?Thank you.

author: E-raticWarrior
author_rank: Newbie
timestamp: November 03, 2024, 05:21:12 am
content: Bump the temp down to about 300C on the station and just leave it for a bit with the tips in.

author: floobydust
author_rank: Super Contributor
timestamp: November 03, 2024, 07:31:14 am
content: It's not a compatibility issue.T12 clone carts are known to have bad connections inside that seem to go away after a while. It might be contaminated spot welds, see pic for what people find inside.It can also be the collar connections to the handle socket.Run it for a while and see if it calms down.

author: E-raticWarrior
author_rank: Newbie
timestamp: November 05, 2024, 11:45:25 am
content: That's insane! Look at the oxidation on the connections, that would never work properly at all.

author: floobydust
author_rank: Super Contributor
timestamp: November 05, 2024, 06:05:36 pm
content: It's residue from the spot welding. I think the two wires are Kanthal.I did see some people fix their cartridges by soldering those crimps but you have to wreck it taking it apart and I forgot if solder actually works on nichrome/kanthal wire.It's a very common T12-clone complaint to get heater error etc with a new cartridge, and after some time it mysteriously stops happening.

author: AstutePauciloquent
author_rank: Contributor
timestamp: November 08, 2024, 09:17:39 pm
content: Quote from: E-raticWarrior on November 03, 2024, 05:21:12 amOh WOW, this worked! Thanks so much. Now I understand what the seller was trying to tell me about wearing them in. We got HOOF TIPS!Thanks Everyone!
2in 1 rework soldering station HELP - Page 1
Forum section: electronics / general

author: 808PunaBoy
author_rank: Newbie
timestamp: November 02, 2024, 11:32:45 pm
content: I brought a HZXVOGEN 2in1 rework/soldering station and right out of the box. It will not heat or power the heat gun. I power it up from the main\back switch and then the front rework switch that displays --1, and as soon as the power switch is activated it reads “off” on the display. When I turn the front rework station switch off it then displays “- -1” again. Why will it not heat up or power on the wand? However the soldering iron side works flawlessly! I’m guessing the wiring to the front rework station switch is incorrect. But that’s my guess not my diagnosis, please all and any evpertise knowledge is greatly appreciated in rectifying this debacle…. Please and Thank you. -808PunaBoy

author: thm_w
author_rank: Super Contributor
timestamp: November 05, 2024, 01:35:30 am
content: - Contact the place you bought it from and see what they say- Unscrew the handle and probe the pins on the handpiece side, you should find one thermocouple (<5 ohm) and one heater coil (~70 ohm).If not maybe take apart the handle and look around inside, just don't do anything with it plugged in.Lots of threads around for similar products:https://www.eevblog.com/forum/beginners/my-chinese-2-in-1-hot-air-rework-station-not-heating-out-of-the-box-please-help/https://www.eevblog.com/forum/reviews/858-hot-air-gun-handle-first-run-burn-in-smoke/https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/equipment-usage-soldering-techniques-and-reviews/22997-faq-atten-858d-problem-s-e-or-5-e-or-stuck-in-498-c

author: u666sa
author_rank: Frequent Contributor
timestamp: November 05, 2024, 07:02:44 am
content: It should have two fuses on its back side. One fuse should be accessible without taking the station apart, but the other two should be on the board itself. Provided that the heating element is good, it could be one of the fuses. Remove back cover, check fuses the on the board.
What could be making this noise ??? - Page 1
Forum section: electronics / general

author: MathWizard
author_rank: Super Contributor
timestamp: November 22, 2024, 11:34:06 pm
content: I'm in my house and I keep hearing through the wall, from another apartment, what sounds like 60Hz hum.At 1st I was imagining it's the Fog horn that's miles away, getting amplified by my concrete basement, but I was half asleep.But I unplugged everything by an adjoining wall, thinking it was some transformer. But I still hear it. It turns on for about 6-8 seconds, IDK for sure if it's always the same, but about that. Then it's all quiet for about say 1min 10sec. IDK if the off time is always the same either, but it's pretty close to it. I've only been noticing this for a couple of days.If I wasn't in the middle of doing some AVR coding, I might try hooking up a little mic circuit, and looking at it on a scope.But could it be a fridge or deep freeze ?? Would any of them only be on for a few seconds, then off from a little over a minute, for 2 days or more ??

author: thm_w
author_rank: Super Contributor
timestamp: November 23, 2024, 12:05:25 am
content: Either record with PC then FFT, or get out your phone and run an FFT app. This will tell you the exact frequency and let you time the on/off durations.Seems far too short of a on/off time for a fridge, usually those are in the 10-30min+ cycle time I would think.

author: Bud
author_rank: Super Contributor
timestamp: November 23, 2024, 12:32:28 am
content: Could be a failed furnice cycling trying to start.Or a failed garage door opener.

author: edpalmer42
author_rank: Super Contributor
timestamp: November 23, 2024, 02:02:29 am
content: Yes, it could be a fridge or deep freeze.If the compressor seizes up, it tries to start and draws maybe 20 - 25 amps compared to a normal running current of 1 - 2 amps. After a few seconds of this, the thermal cutout kicks in and disconnects the power. After it cools down enough, everything restarts.This is normal if you just had a power failure, but it clears itself after less than an hour with no damage. If it's been going like that for a couple of days, the compressor, the deep freeze, and the food, is garbage.

author: MathWizard
author_rank: Super Contributor
timestamp: November 26, 2024, 04:36:19 pm
content: On Sunday it seemed to come on a bit more often, but whatever it was, it's gone away since sometime yesterday. I'll have to listen and see if now it runs for a few minutes and shuts off for ages like my fridge.
Looking for Shure UR1 service Manual (transmitter for the UHF-R wireless mics) - Page 1
Forum section: electronics / general

author: SiliconKnight
author_rank: Newbie
timestamp: November 01, 2024, 10:15:54 pm
content: I am starting to work on repairing some wireless microphones, and Shure UHF-R system is the most common that I'm coming across. I have the service manual for the UR4D receiver, but I'd like to get my hands on a Service Manual for the UR1 Bodypack transmitter and UR2 Handheld transmitter. Does anyone know where to get these? TIA.
Data point: trustworthy Chinese eBay vendor - Page 1
Forum section: electronics / general

author: Analog Kid
author_rank: Super Contributor
timestamp: October 22, 2024, 07:08:27 pm
content: I recently received some chips I ordered from an eBay seller from China. I eagerly awaited their arrival with the hope that the chips weren't fakes. (I ordered 5 74HC4067N MUX chips for a potential inverter project. The total cost was less than $8, much much better than anything else I could find online.)Well, they came, I tested them and they work. So I thought I'd note this seller to anyone who is looking for relatively inexpensive NOS chips and such. The seller is "ICInventory".Of course, this only one instance, but judging from both their feedback and from the communications sent between us, I feel this outfit can be trusted.

author: wraper
author_rank: Unknown
timestamp: October 22, 2024, 07:18:46 pm
content: Judging from photos this seller sells salvaged e-waste as brand new parts, example:https://www.ebay.com/itm/276393035859IME nearly all Chinese sellers sell mix of counterfeits and genuine stuff. Something working on a first glance does not mean it's good and genuine.Overall I suggest buying SMD parts from reputable place instead, 74HC4067N is obsolete, so chances of getting genuine brand new ICs are slim, but you could easily buy genuine ICs in SMD package cheaply at say LCSC.QuoteMeans nothing, you'd see significant percentage of negative feedblack only if seller blatantly scams people with f-off attitude when caught by more knowledgeable buyers. And actually seller has some negative feedback about counterfeits.

author: Analog Kid
author_rank: Super Contributor
timestamp: October 22, 2024, 07:53:49 pm
content: Well, as always, caution is advised. Maybe I just got lucky and got the "stopped clock" good parts that day ...

author: Haenk
author_rank: Super Contributor
timestamp: October 30, 2024, 11:34:08 am
content: This might work the other way round, too.Purchased a couple of parts declared as "desoldered" - instead received new (original) parts instead.(I did intentionally buy desoldered parts, as they were uncommon, and too cheap to fake them for a profit, even for chinese standards, only 10% of them being "good" would have been a good purchase...)But in general, I agree, you often don't what is pictured or described...
HP 6024A repair - Page 1
Forum section: electronics / general

author: paweljasinski
author_rank: Newbie
timestamp: November 03, 2024, 09:28:42 pm
content: Hi,I recently salvaged an HP 6024A from a dumpster.After replacing some burned-out and busted components, it’s still not fully functional.I’ve got the service manual from Agilent, but unfortunately, it’s missing the most crucial part—the schematic.Does anyone happen to have a schematic they could share?Thanks in advancePawel

author: coppercone2
author_rank: Super Contributor
timestamp: November 03, 2024, 09:31:05 pm
content: http://ridl.cfd.rit.edu/products/manuals/agilent/power%20supplies/cd1/service/6023ser.pdfmaybe its close?

author: paweljasinski
author_rank: Newbie
timestamp: November 03, 2024, 10:25:26 pm
content: Thanks! This helps. I have already started to draw schematic and power mesh topology matches. The values and reference numbers are off.
Where to buy replacement desoldering gun for ZD-985 desoldering station? - Page 1
Forum section: electronics / general

author: djc6
author_rank: Newbie
timestamp: October 28, 2024, 02:15:35 pm
content: I have a ZD-985 desoldering station, and I can't find anywhere that sells the replacement gun - like the one below. Can't even find them on aliexpress.https://memotronics.com/replacement-gun-for-zd985/Was the ZD-985 and all its parts discontinued? Anyone know of a compatible seven pin gun?

author: OZ1LQB
author_rank: Regular Contributor
timestamp: October 28, 2024, 03:08:28 pm
content: hi.try asking herehttps://www.zhongdisolder.com/product/top-notch-zhongdi-zd-985-desoldering-repair-station-powerful-80w-200w-heat-up-factory-direct/they are helpful and they make the desoldering stationi think the gun is zd552b and you can get the heatingelement alonei also found them on ebayhttps://www.ebay.com/itm/266983810158?https://www.ebay.com/itm/276653658098?

author: djc6
author_rank: Newbie
timestamp: October 28, 2024, 03:35:44 pm
content: Thanks for the listing! Unfortunately, I am in USA and those sellers won't ship here. I've not been able to find a listing for the complete desoldering gun that will ship to USA.
Can one use a hot plate for a solder pot? - Page 1
Forum section: electronics / general

author: Cricri
author_rank: Contributor
timestamp: October 24, 2024, 11:50:53 pm
content: I am considering buying a solder pot and had previously dismissed buying a hot plate as I thought I just wouldn't use it enough to justify it.But then I wondered: if I just bought a pot (I mean just the a spare pot, the container) and a hot plate, couldn't I just use this pot on a hot plate?In which case, I could use the hot plate as bought a hot plate (obviously!) and also for heating the solder pot, and that would make it much more usable to me.Any reason why this would be a poor (or even terrible) idea?Thanks!

author: pqass
author_rank: Super Contributor
timestamp: October 25, 2024, 01:45:19 am
content: You can get a solder pot for < $30 on amazon. Even cheaper on aliexpress.No need to heat the room with a hot plate nor devise a temperature controller for it.

author: fourfathom
author_rank: Super Contributor
timestamp: October 25, 2024, 07:03:20 am
content: I got one of those solder pots on Amazon (and a bar of solder) and it works very well. I sometimes have to wind a bunch of toroid inductors or RF transformers and I use the pot to tin the leads. It does take at least ten minutes to get a cold pot of solder to melt, so I do batches of coils at a time. If I'm just doing one or two I scrape and use my iron to tin the leads.

author: Cricri
author_rank: Contributor
timestamp: October 25, 2024, 08:26:28 pm
content: Thanks to those who responded, although that didn't really answer my question. Yes I can get a solder pot for cheap, but if I was getting a hot plate, could I use it to occasionally heat up a solder pot container. Ergo not having 2 machines = less space, and if I have to buy only one, that would mean the hot plate does 2 things whereas the solder pot does only one.

author: thm_w
author_rank: Super Contributor
timestamp: October 25, 2024, 09:08:42 pm
content: Can't see why it wouldn't work unless your solder pot is too large so it sinks too much heat away from the hot plate.Also a bit of danger as the solder pot could slide and fall off.
Does anyone make an ESD safe electric precision screwdriver? - Page 1
Forum section: electronics / general

author: Hootis Tigglebits
author_rank: Contributor
timestamp: October 23, 2024, 03:51:09 pm
content: I've been looking for an ESD safe electric precision screwdriver that accepts 4mm micro bits, but cannot find any. I have a cheap Wow stick now that get's the job done, but it isn't ESD safe. If possible I'd like to keep the price under $150. Does anyone know of any on the market?

author: artag
author_rank: Super Contributor
timestamp: October 23, 2024, 06:37:02 pm
content: Do you mean something likehttps://uk.rs-online.com/web/p/screwdriver-sets/2272046?gb=s?

author: Hootis Tigglebits
author_rank: Contributor
timestamp: October 23, 2024, 11:56:08 pm
content: No I mean electric as in powered.

author: thm_w
author_rank: Super Contributor
timestamp: October 23, 2024, 11:59:25 pm
content: OP is talking about 4mm bits, and an electric driver4mm manual is easily found:https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2949/System%204%20Handles%2CMicro%20Bits.pdfWiha 758 01. Electric is a different story.Use 1/4" or HIOS if you can. Or not care about it because it probably doesn't matter as long as you are wearing a strap.Are you sure wowstick is not ESD safe anyway? Have you measured the tip to handle resistance?
Atten ST-909 / MULTICOMP PRO MP741034 soldering station - Page 1
Forum section: electronics / general

author: Hydrawerk
author_rank: Super Contributor
timestamp: October 12, 2024, 03:07:18 pm
content: Hello is anyone familiar with the Atten ST-909 / MULTICOMP PRO MP741034 soldering station?https://de.farnell.com/multicomp-pro/mp741034/l-tstation-90w-240v-ac-500-c/dp/4261026https://www.atten.com/product/st_909_digital_soldering_stationhttps://dedjh0j7jhutx.cloudfront.net/1523686242733039616%2F8491706501feb776a9c91a69dd5b23fa.pdfWhat cartridges does it use?? Is it compatible with Hakko T15 series tips?

author: Hydrawerk
author_rank: Super Contributor
timestamp: October 12, 2024, 03:16:52 pm
content: Well, the cartridge seems to be not compatible with anything I know.

author: marck120
author_rank: Regular Contributor
timestamp: October 14, 2024, 12:14:04 pm
content: The price is good, the station is powered by a linear transformer and the tips are not very expensive, maybe 90w is not enough.https://it.farnell.com/multicomp-pro/mp741034/stazione-saldatura-90w-240vac/dp/4261026From what you wrote the problem is that the tips are not very well known, there is no compatibility with other handles and soldering stations, maybe it is better to choose a station compatible with the popular T12 and C245, even better if the station is compatible with the original JBC handles. Maybe in a few years it will go out of production and the tips and handles will no longer be available on the market.For the same reason I had discarded the ATETOOL AE970D:https://eleshop.eu/ele-ats1.html
What width size solder wick do you use the most? - Page 1
Forum section: electronics / general

author: artvandalai
author_rank: Regular Contributor
timestamp: October 15, 2024, 12:45:59 am
content: What brand and width size of solder wick do you find using the most?

author: themadhippy
author_rank: Super Contributor
timestamp: October 15, 2024, 01:08:21 am
content: Chemtronics chem-wik yellow/1.5mm .https://www.chemtronics.com/chem-wik-rosinIve tried a few other brands but nothing seems to work as well for me

author: tooki
author_rank: Super Contributor
timestamp: October 15, 2024, 06:53:26 am
content: MG Chemicals, Chemtronics, Edsyn are all good.As for size: I have them all and use them all. The wick size needs to match the joint being cleared. Too wide and you contact adjacent things you don’t want to wick off. Too thin and you saturate the wick way too soon, so you have to use up a lot more wick, and have to heat the joint much longer than necessary. (Don’t forget that the price of solder wick is largely independent of width (with many, you pay about the same for the same length regardless of width), so wide wick sucks up a lot more solder per dollar.) Onoy the very widest wick (which many companies don’t make) is disproportionately expensive.

author: David Hess
author_rank: Super Contributor
timestamp: October 15, 2024, 07:19:17 am
content: I am currently going through a spool of Techspray Pro Wick size #4, which is 0.098" 2.5mm.

author: wasyoungonce
author_rank: Frequent Contributor
timestamp: October 15, 2024, 10:15:42 pm
content: I use #3 ….says chemtronics but probably fake. No problem. Either dip a length of it in rosin flux or wipe gel Rosin flux along it. It sucks solder like pulling a sailor off ya sister!Best trick ever.
Solderwerks BK-3090 Replacement Desoldering Gun Element Source - Page 1
Forum section: electronics / general

author: scopeman
author_rank: Frequent Contributor
timestamp: October 11, 2024, 06:25:46 pm
content: HELP!I purchased a desoldering gun kit from Circuit Specialists (USA) a Solderwerks BK-3090. Mine is the black model not the silver model but I am sure that electrically they are the same. They say it's been discontinued and the part is not availble which really tee's me off as I have only used it for a dozen times or so. When it worked it worked pretty well. They still have the product on the web site in Europe but no listing of parts there. I would bet that this product was made under other names as well. Below is a link to the web site listing. I just can't believe that they would not stock parts long term for soldering equipment.https://www.circuitspecialists.eu/blackjack-solderwerks-bk-3090-high-powered-desoldering-suction-gun-and-soldering-iron-with-led-lightsAny help would be appreciated!SamW3OHMP.S. I went ahead and ordered a Hakko unit but I really would like to get this working again as I can use it other places.

author: thm_w
author_rank: Super Contributor
timestamp: October 11, 2024, 08:54:53 pm
content: Do a google image search and you'll find a number of products that resemble that.Take the element out and measure its resistance, to confirm its blown. Maybe post a photo here, so others can see what it looks like.

author: scopeman
author_rank: Frequent Contributor
timestamp: October 12, 2024, 10:16:50 pm
content: Well that's what I plan to do. I ordered one off of Amazon for the S-993A. I just hope it is the 110V version. My element is open but I do have a friend that has one so I plan to do the measurements there. The S-993A has screw on tips so I ordered some of those too. I plan to put some copper based never-sieze on the threads as I could see this being a problem. Hopefully the parts will work. It seems that there are quite a few competitors in the portable desoldeing gun business. Most look like the same one, just re-badged.Since I really needed the unit for an intensive repair project I went ahead and bought the Hakko FR-301. I can say it is worth the difference in price. Night and day in performance. As a test run I removed over 200 various parts from a couple of doublesided PCB's I had in my junk box and it worked like gangbusters. As a desoldering gun it seems equal to the PACE I have on the bench so far.The only complaints I have is the stand is a joke, the BK3090 one is much better. And the case is cheap blow molded so no room for accessories or a good stand and a roll of solder. I wish companies would think more about how people use portable devices as you always need accessories and spare parts therefore room for them.Thank you for responding!SamW3OHMP.S. I don't think I will go the Circuit Specialists route the next time I need soldering equipment. They seriously let me down on the BK3090. It's still on the EU site but missing from the USA site and I searched for a couple of hours last night and could not find anything specific on the unit. So much for Solderwerks!
V-tek TM-50 Manual SMD Carrier Taping Machine Teardown / Rattle Inspection - Page 1
Forum section: electronics / general

author: KG7AMV
author_rank: Frequent Contributor
timestamp: October 12, 2024, 01:35:58 pm
content: I got this for my BPM 3800 to make my own.Not sure if its going to work was a gamble but here is the unboxing and Teardown. The Teardown starts at 8min 30seconds to find the rattle.Blog Post with More Photos.https://www.stevenrhine.com/?p=134893Will do a second video on the main board. prob publish it Sunday/Monday.
BPM Microsystems 3800 MK2 APS Chip Programmer Teardown / Inspection - Page 1
Forum section: electronics / general

author: KG7AMV
author_rank: Frequent Contributor
timestamp: October 07, 2024, 09:47:10 pm
content: I've made an exciting upgrade to my chip programming farm! Here's Part 1 of an inside look at the BPM Microsystems 3800 MK2 APS. While I plan to dive deeper into its parts and components in future posts, for now, I'll be focusing on learning / mastering its operations. Join me on this exciting journey!This is whats under the hood on these very expensive programmers.
Xerox WorkCentre 3045 paper jam on the fuser rollers. - Page 1
Forum section: electronics / general

author: ARF
author_rank: Regular Contributor
timestamp: October 05, 2024, 08:21:57 pm
content: Hi guys, I know that this is an unusual topic for this forum, but maybe someone is familiar with these printers.I bought a printer with this problem and I want to fix it.I know for sure that the problem is not in the fuser and its temperature. Too much toner sticks to the sheet of paper and because of this the sheet sticks to the fuser. The sheet is constantly black, covered in toner, despite the fact that I try to print a blank sheet.What are the typical problems?
Slide rule - Page 1
Forum section: electronics / general

author: mzdenkov
author_rank: Regular Contributor
timestamp: September 29, 2024, 07:05:38 pm
content: Hi,I've bought this slide rule from the pictures bellow for my collection.It has some scales that i haven't seen before. Do you have anyidea for what it was used for?Best Regards.

author: tggzzz
author_rank: Super Contributor
timestamp: September 29, 2024, 07:20:14 pm
content: For various types of power calculations, based on measurements from RF receivers and audio amplifiers.

author: mzdenkov
author_rank: Regular Contributor
timestamp: September 29, 2024, 07:36:41 pm
content: Thank you kind Sir.Now i have a clue where to look next for more info how to use it in "basic" calculations.Best regards.

author: Stray Electron
author_rank: Super Contributor
timestamp: September 29, 2024, 08:12:16 pm
content: Quote from: tggzzz on September 29, 2024, 07:20:14 pmI agree. 50 Ohms is a common impedance for receiver inputs and for RF transmission lines. I'm sure that someone will correct me if I'm wrong but I thought audio systems commonly used 66 Ohms for low impedance inputs and outputs.

author: tggzzz
author_rank: Super Contributor
timestamp: September 29, 2024, 08:19:27 pm
content: Quote from: Stray Electron on September 29, 2024, 08:12:16 pm600ohms was common for audio frequency equipment, e.g see the bottom right socket on a HP651A oscillator

author: Stray Electron
author_rank: Super Contributor
timestamp: September 30, 2024, 01:48:29 am
content: Quote from: tggzzz on September 29, 2024, 08:19:27 pmAhh. You're right. It's been so long since I worked around any audio stuff that I didn't remember the right number.

author: Smokey
author_rank: Super Contributor
timestamp: September 30, 2024, 04:21:31 am
content: Quote from: tggzzz on September 29, 2024, 08:19:27 pmNice Wein!
ID an IC from a welder machine... - Page 1
Forum section: electronics / general

author: whatboy
author_rank: Regular Contributor
timestamp: October 17, 2024, 05:40:01 pm
content: I hava a PUK U5 welder machine, no power at all, fount MC dead (STM32F407ZGT6), replaced it with new one, but now the machine powers on with white screen, nothing happens, my guess is the the SRAM chip is fried too, but it has a weird enclosure, at least am not able to find datasheet... part number is LY61L102416ALL-12 but it is a 48 pin TSOP, and the datasheets on the internets, are 36 pins... any one can help me out???

author: gamalot
author_rank: Super Contributor
timestamp: October 17, 2024, 06:14:24 pm
content: https://www.lyontek.com.tw/pdf/hs/LY61L102416A-1.6.pdf

author: thm_w
author_rank: Super Contributor
timestamp: October 17, 2024, 08:38:25 pm
content: If the MCU died then nothing can be done, code was programmed in there that you no longer have access to.If you are incredibly lucky someone else can read back or find that code, but it is unlikely.Maybe ask the company if they have a firmware update file or are willing to send out repair parts to you.

author: whatboy
author_rank: Regular Contributor
timestamp: October 17, 2024, 10:14:03 pm
content: Thank you very much!!!

author: nctnico
author_rank: Super Contributor
timestamp: October 17, 2024, 10:20:20 pm
content: I'd place the original MCU back and check crystal, boot mode selection and reset lines. If the reset lines and boot mode lines are OK but the crystal is doing nothing, then replace the crystal. In some cases crystals can be prone to failure. As others wrote, the MCU has the software inside. If that really is dead (which almost never happens), then the only way out is to find a replacement board.

author: whatboy
author_rank: Regular Contributor
timestamp: October 18, 2024, 07:48:19 pm
content: It is dead, short 0 ohms!, damn it!!!
Atten GT-5150 desoldering station - Looks great, but no reviews? - Page 1
Forum section: electronics / general

author: MrQuan
author_rank: Contributor
timestamp: December 30, 2022, 10:07:29 am
content: I'm looking to replace my very old and rusty Rhino ZD-985 desoldering station.My first option was to look at JBC, as I have a JBC soldering station that I'm happy with, but found their desoldering gear prohibitively expensive (~$3000 AUD), so now I'm looking for more affordable options.I have been recommended the Hakko FM-2024 desoldering gun by someone. The cheapest station set this comes in is the FM-204 for ~$1300 AUD. So a definite contender.Then I saw the Atten GT-5150 desoldering station for ~$1100 AUD, and was surprised by how professional it looks. I have an old Atten AT-858D hot air station from many years ago, still going strong. But that was *cheap*. Their new gear looks very professional and pricing increased to match.I also noticed that the Atten desoldering gun is 150W vs the Hakko at 70W. Atten interface also looks much more capable. There are a few promo videos on YouTube showing it's features.However, I can't see any reviews or videos that show the Atten actually put through it's paces. So I'm interested to hear if anyone here has used one, or knows if they perform well. Your thoughts are appreciated.

author: richardlicker
author_rank: Newbie
timestamp: November 07, 2023, 05:16:06 pm
content: would love to hear anyone's review of this. I've been trucking along with one of the updated proskit models, and while they are better than nothing, I have to use it i conjunction with a hot air to get any reasonable performance. the FR-410 looks promising but it's been a decade since I've used hakko anything, since they have been drastically overpriced and underperformers compared to the stuff coming out of china. I've been using an atten 862D for years now and it is better in every way than my old hakko 810D, despite costing 1/4 of the price, but considering the atten GT-5150 is only a few hundred less than the hakko, the hakko might be a safer choice.it's weird how swamped the market is with soldering equipment, yet there are hardly any options for desoldering

author: sigsauer
author_rank: Newbie
timestamp: September 17, 2024, 08:09:53 am
content: Did you finally buy it? I'm looking at it now.

author: Shock
author_rank: Super Contributor
timestamp: September 28, 2024, 05:55:21 am
content: The 150W could be neither the heater or the vacuum power and heater, for all you know it could be the power the tweezers use or just overrated or exaggerated station spec like other chinese brands.For a thousand bucks you'd want it to be rock solid. This should be like a $300 product on Ali not have some eye watering markup on a reseller.It's laughable that it's still basically a knockoff of both Hakko desoldering iron and JBC soldering iron with a Metcal like model number in a chinesium plastic case with what seems an smps and tiny pump.
Behold, my stuff: - Page 1
Forum section: electronics / general

author: Bryn
author_rank: Regular Contributor
timestamp: September 24, 2024, 01:11:59 pm
content: I see you have a bag bearing the site's name... official merchandise? Dave will be happy

author: madires
author_rank: Super Contributor
timestamp: September 24, 2024, 01:23:32 pm
content: For the genuine OSHW Transistortester firmwares please check outhttps://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/.

author: xrunner
author_rank: Super Contributor
timestamp: September 24, 2024, 11:38:47 pm
content: When I ran across this thread title, I was a little hesitant to look - what am I going to see here? ...

author: Retro Jack
author_rank: Contributor
timestamp: September 24, 2024, 11:39:41 pm
content: Quote from: Bryn on September 24, 2024, 01:11:59 pmLOL - it came with the multimeter. 😋

author: Retro Jack
author_rank: Contributor
timestamp: September 24, 2024, 11:40:40 pm
content: Quote from: xrunner on September 24, 2024, 11:38:47 pmLOL - you'll never be that lucky!
Digitally controllable polarization filter or LED ring light for microscopes - Page 1
Forum section: electronics / general

author: nitro2k01
author_rank: Frequent Contributor
timestamp: September 14, 2024, 11:00:59 pm
content: I just had an idle thought as I rotated a board to get the right angle to be able to read a component marking. What if I had a ring light for the microscope where I could control the angle of the light by which of the LEDs are lit? This could then be controlled with a jog wheel off to the side where it could be turned without the risk of dislodging the thing being worked on or the microscope. You could have controls for the angle and the width of the "beam". Alternatively, a polarizing filter could be similarly controlled electronically using a round single segment LCD glass. And this could also potentially be automated, where a device could quickly sequence a full 360 rotation and take pictures at intervals to facilitate future reverse engineering just from the pictures. Does anything like this exist currently as an accessory to microscopes?

author: Someone
author_rank: Super Contributor
timestamp: September 14, 2024, 11:42:50 pm
content: Automation = spendyhttps://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=12829Why not just use a manual rotated holder?

author: nitro2k01
author_rank: Frequent Contributor
timestamp: September 15, 2024, 12:07:28 am
content: Quote from: Someone on September 14, 2024, 11:42:50 pmThat seems like a mechanical device with positional feedback and a fancy control interface, which means money++. My idea for the polarization would simply be a round LCD glass where you control the bias level. The simplest version could be more or less just a potentiometer controlling the LCD. The LED idea would require some more smarts, but not more than a hobbyist could cook up their own board for and order from whatever manufacturer, and control with an Arduino or whatever. It doesn't have to be expensive at all. And for both ideas, no mechanical rotation is necessary.Quote from: Someone on September 14, 2024, 11:42:50 pmFor the LED idea, you have a cable to contend with, which makes rotating the whole ring light module difficult. You could solve it more simply with a mechanical shutter that you rotate but you'd also want to easily switch to a full light mode.

author: thm_w
author_rank: Super Contributor
timestamp: September 16, 2024, 09:22:32 pm
content: You can buy this for $20:https://www.aliexpress.com/item/1005006605074650.htmlBeware: color temperature and CRI are garbage.But it works fine for reading IC markings.

author: jpanhalt
author_rank: Super Contributor
timestamp: September 16, 2024, 09:45:12 pm
content: Absolutely, in pathology we have used a manually adjustable polarizers for years. I can see no reason to make it digital, unless you are using digital/analog automated optics to read something.
EPROM Programmer - need a recommendation please - Page 1
Forum section: electronics / general

author: SolderSucker
author_rank: Regular Contributor
timestamp: August 06, 2020, 03:30:32 pm
content: I'm on the hunt for a USB-powered/interfaced programmer which will handle EPROMs of up to 42-pins (or even more). I don't want to spend a fortune but I also want one that's reliable and preferably has reasonable to good support from the manufacturer in the form of updates as required. A bonus would be if it also tests static RAMs and even TTL logic chips.Any recommendations please?

author: RomDump
author_rank: Regular Contributor
timestamp: August 06, 2020, 06:06:28 pm
content: Quote from: SolderSucker on August 06, 2020, 03:30:32 pmI assume you aren't looking at theXGecu TL866II.Then check out theConitec Galep5. I don't think it tests TTL though.

author: SolderSucker
author_rank: Regular Contributor
timestamp: August 07, 2020, 10:16:52 am
content: Thanks, the Galep-5 is unfortunately rather expensive and, as you say, it won't test TTL or RAMs, the Chinese one you linked to won't test RAMs. I guess I'll have to try some cheap Chinese model with the required functions and hope it's okay.

author: sn4k3
author_rank: Frequent Contributor
timestamp: August 07, 2020, 03:54:28 pm
content: At this point TL866II not worth when XGecu T56 is out.XGecu T56 will test SRAM56 PinQuoteRead full spec here and see if got what you looking for:http://forums.xgecu.com/redirect.php?tid=19&goto=lastpost#lastpost

author: lunacyworks
author_rank: Contributor
timestamp: September 21, 2024, 11:14:08 pm
content: Will the T46 also do the same but with less pins? (Test SRAM)
Sunkko 950T Pro - Page 1
Forum section: electronics / general

author: Randy222
author_rank: Frequent Contributor
timestamp: November 11, 2024, 03:46:27 pm
content: Anyone use the the Sunkko 950T Pro?From what I can tell it's like many other low-end T12 solder station, but just looking for some reviews from those who may have it.I noticed the iron has a rather thin body and many do prefer thicker grip area.Good, bad, alternatives, etc.

author: thm_w
author_rank: Super Contributor
timestamp: November 12, 2024, 09:53:09 pm
content: Doesn't make sense to me to spend $70 on it.Either get a cheaper T12 station or a T245 for the same price (geeboon, etc.).
What METCAL workstand model? - Page 1
Forum section: electronics / general

author: Everbrave
author_rank: Regular Contributor
timestamp: September 16, 2024, 04:48:13 pm
content: Anyone knows what Metcal workstand model is that?It looks like WS2 for SP-200 but not quite.Thanks in advance

author: helius
author_rank: Super Contributor
timestamp: September 16, 2024, 05:12:31 pm
content: You were very close: it's the PS-WSK1 for the PS-800 and PS-900.

author: Everbrave
author_rank: Regular Contributor
timestamp: September 16, 2024, 08:21:02 pm
content: Quote from: helius on September 16, 2024, 05:12:31 pmThanksDo you know by chance if it possesses the auto sleep property ?

author: thm_w
author_rank: Super Contributor
timestamp: September 16, 2024, 09:38:40 pm
content: Quote from: Everbrave on September 16, 2024, 08:21:02 pmGoogle says no:https://www.farnell.com/datasheets/70988.pdfOr you can just take a chunk of steel, bring it near the stand, and see if it has any magnets inside.

author: Everbrave
author_rank: Regular Contributor
timestamp: September 17, 2024, 09:58:36 am
content: Quote from: thm_w on September 16, 2024, 09:38:40 pmI don't have it; saw it on an auction. Yes, Google told me that too, but sometimes its inaccurate
Upgrade from Metcal SP-200 - Page 1
Forum section: electronics / general

author: Everbrave
author_rank: Regular Contributor
timestamp: August 19, 2024, 10:36:28 am
content: The questions I’m asking myself and seeking your opinion to answer are:1) what is the upgrade path from Metcal SP-200 for a hobbyist, the PS-900 or the MFR-series?2) Will I notice the upgrade to the higher power?3) Is an upgrade necessary at all?What do you think?Thanks

author: thm_w
author_rank: Super Contributor
timestamp: August 19, 2024, 09:20:51 pm
content: I think we already discussed in your other thread:https://www.eevblog.com/forum/reviews/metcal-gt-90120-is-still-a-metcal/Go plug in a watt meter and start soldering stuff you normally solder. If you don't max out the input (60W in? somewhere around there), then you won't notice a significant difference in performance.Of course, power will always max out when turning on, so heat up time will be a bit faster.https://www.reddit.com/r/AskElectronics/comments/531rf0/looking_to_buy_a_metcal_any_opinions/https://www.ellsworth.com/globalassets/literature-library/manufacturer/oki/oki-product-guide-hand-soldering-and-rework-ps-900-and-mfr-series.pdf?srsltid=AfmBOooHyfVsnPXbCjfMIhF5dHxwGoegk8qtJUsvuJa-pjrLwUjZdYs7

author: Everbrave
author_rank: Regular Contributor
timestamp: August 19, 2024, 10:48:21 pm
content: Quote from: thm_w on August 19, 2024, 09:20:51 pmI get that regarding power; any thoughts regarding ps-900 vs. Mfr?Thanks

author: Everbrave
author_rank: Regular Contributor
timestamp: September 16, 2024, 12:23:58 pm
content: Now, I’m able to answer my own question since I got a -very- good offer on the MFR-1110, so I bought itThe answer is, in my case, although I notice the difference in the heat-up and soldering duration in favor of the MFR due to the higher power, I would not consider it worth the upgrade if I had to pay the regular price!Other things are, I like the slimmer SXP cartridge of the MFR compared to the SSC of the SP-200. Also, the MFR is quite; no transformer buzzing!All in all, I like my new MFR very much
iFixit FixHub: 100W USB-C soldering irons, power bank, web console control - Page 1
Forum section: electronics / general

author: nidlaX
author_rank: Frequent Contributor
timestamp: September 12, 2024, 07:12:06 pm
content: https://www.ifixit.com/products/fixhub-power-series-portable-soldering-stationNow I have to debate between this and a T420D. Using USB-C to communicate between the power bank and iron is a pretty nice touch!

author: thm_w
author_rank: Super Contributor
timestamp: September 12, 2024, 10:11:52 pm
content: Do you *need* a portable station? If no, then don't buy this. Tip selection is limited and performance is completely unknown.The ergonomics of the handle look terrible, appears to be solid aluminum.QuoteIf you are in the market for a T420D, this is a completely different use case.For $25 you can get decent portable T210 irons and add your own 18V tool battery to power them.

author: nidlaX
author_rank: Frequent Contributor
timestamp: September 13, 2024, 06:04:17 am
content: Quote from: thm_w on September 12, 2024, 10:11:52 pmAgreed, I came to the same conclusion after I read the specs more carefully. The proprietary tips are a big no-no in an era where you can get tons of JBC compatible irons for cheap. The iron itself also doesn't seem to offer any controls, only if you use it together with the power bank.

author: bitwelder
author_rank: Super Contributor
timestamp: September 13, 2024, 07:55:17 am
content: Just saw a review of it on Hackaday:https://hackaday.com/2024/09/12/review-ifixits-fixhub-may-be-the-last-soldering-iron-you-ever-buy/

author: janoc
author_rank: Super Contributor
timestamp: September 13, 2024, 11:24:37 am
content: Quote from: bitwelder on September 13, 2024, 07:55:17 amThey mention all sorts of things in the review - yet completely neglect to show how that thing actually solders.That's more a regurgitated press release (and there are tons of these the last few days, iFixit's marketing really did a good job to raise the buzz about the product) than anything actually relevant. The gizmo is packed with features like the browser interface (because, obviously, that is how you want to set the temperature of your iron, right?) but for the price and the proprietary tips that will be gone the moment iFixit discontinues this product you could buy a much better iron, IMO.They clearly market it at people who solder once in a blue moon and who buy these USB irons, not knowing any better.

author: thm_w
author_rank: Super Contributor
timestamp: September 13, 2024, 09:21:58 pm
content: I can't get a good view of the back of the unit but I see two holes and a USB C port. Are those grounding points or just case screws?If they are screws, and they don't include a grounded USB-C power adapter (mentioned in the video above). Then most people will end up using and un-grounded adapter and the station won't be ESD safe at all.
types of power supplies - Page 1
Forum section: electronics / general

author: arivel
author_rank: Regular Contributor
timestamp: September 13, 2024, 10:50:17 am
content: hello everyone.can you tell me how many types of power supplies exist nowadays?. I need to know both for the dual ones and for the unipolar ones.I only know two types, the old linear one with transformer, diode bridge and smoothing capacitors, then the PWM DC-DC that does the double conversion, first in high frequency sinusoidal and then DC.if there are no other types of these already mentioned I already know something but I would like to know from you what the strengths and weaknesses are.

author: tooki
author_rank: Super Contributor
timestamp: September 13, 2024, 11:03:04 am
content: https://en.wikipedia.org/wiki/Power_supplyhttps://it.wikipedia.org/wiki/Alimentatore_elettricoIf you have specific follow-up questions, we will help. But don’t expect us to do your basic research for you!
Honest review about NORVI devices - NOT COMMERCIAL ADV - Page 1
Forum section: electronics / general

author: Houseman
author_rank: Regular Contributor
timestamp: September 12, 2024, 09:03:00 am
content: Hi forum.We are going to build in an industrial facility a small PLC that needs to be - by client request - cost effective.I found this small device from the company NORVI from Sri-Lanka. And we focused on this particular device herehttps://norvi.lk/industrial-esp32-norvi-iiot/that has a fraction of a cost rather than other big brands like Siemens or Bosch or other.I have seen that is mostly used in IOT but also in industrial branch. Has all necessary FCC certifications, so before using it I would give a try.I know by Siemens you pay for the quality but really there is no need here for a high power PLC. It has to be very basic.It has to be reliable (need to steer only a couple of valves). Have you ever experienced use of this device?I wanted to know really (please no fake adv) if it has all the specs that suits the use.Best regards and thanks.Steve