hybridfree/eevblog-posts huggingface dataset:
Installation of instant water heater for shower without protective earth - Page 1
Forum section: electronics / general

author: TheAmmoniacal
author_rank: Unknown
timestamp: December 24, 2024, 07:46:19 am
content: I'm here visiting a country in Southeast Asia, and in the house I am staying the water heater socket is broken/corroded (working intermittently, with visible corrosion on the live connection). I started replacing the broken socket for the water heater (Panasonic DH-4HS1P), but then I noticed that the heater has been installed without any earth connection. From the wall there's just a live and neutral (brown and blue) going into a circuit breaker (2P, 20 A; just to protect the wire, not an RCD/GFCI) then into the water heater. The water heater earth wire (ground, PE?) is not connected to anything.In the instruction manual for the heater (found herehttps://www.panasonic.com/content/dam/Panasonic/ph/en/PDF/productPDF/2023/Operating-Instructions-DH-4HS1.pdf) it says "The Unit must be earthed."Is it safe to just fix the connection and wire it back as it was? What do people think? Apparently it's been used like this for years. What are the real and relevant safety issues?Could the corrosion itself be a result of missing PE? Leakage currents mixed with the humidity causing electrolysis or arcing?Any advice on how to proceed?

author: tooki
author_rank: Super Contributor
timestamp: December 24, 2024, 08:09:49 am
content: https://www.eevblog.com/forum/projects/suicide-shower-hear-teardown/There are a number of threads that discuss suicide showers.Diodegonewild did a few videos about them, too, including testing and measurement in use:
Need schematic of  Elnec DIL48/PLCC84 ZIF PLD-2 (Ord. no. 70-0085) - Page 1
Forum section: electronics / general

author: sohailsystem
author_rank: Newbie
timestamp: December 30, 2024, 04:05:37 pm
content: Please share it if anyone have it DIL48/PLCC84 ZIF PLD-2(Ord. no. 70-0085, I don't want to spend $200 on only socket

author: sohailsystem
author_rank: Newbie
timestamp: December 31, 2024, 02:13:43 am
content: I want to read my xc95108 plcc84 and write program in new chip , means cloning of chip

author: squadchannel
author_rank: Frequent Contributor
timestamp: December 31, 2024, 02:35:57 am
content: if it's not XC95108"F", it will can read via JTAG.it may or may not be readable. if the security bit is enable, there is nothing you can do.

author: sohailsystem
author_rank: Newbie
timestamp: December 31, 2024, 02:56:07 am
content: It can't be read in isp mode, but on socket mode can be read in elnec, and I have definitely sure that I have unlocked master chip

author: asis
author_rank: Frequent Contributor
timestamp: January 03, 2025, 10:39:55 am
content: Hi,All Elnec adapters are chipped.-It's easier to find LabTool48 (XP/UXP) and make an adapter for it.

author: sohailsystem
author_rank: Newbie
timestamp: January 04, 2025, 12:04:45 pm
content: Does this same adaptor should work on elnec?

author: asis
author_rank: Frequent Contributor
timestamp: January 05, 2025, 10:32:13 am
content: Probably not.New BeeProg 2/2C - in any case check the authenticity of the adapter.https://www.eevblog.com/forum/reviews/new-beeprog-2-disappointment/-There is an example of the implementation of the mechanism for bypassing this protection for XELTEK.https://habr.com/ru/articles/430634/https://www.eevblog.com/forum/repair/china-xeltek-superpro-5k-6k-cx-dx-adapters-unmatched-adapter-error-fix/
data cable for digital indicator gauge? - Page 1
Forum section: electronics / general

author: JBeale
author_rank: Frequent Contributor
timestamp: December 21, 2024, 11:30:22 pm
content: I recently got a 1" (25.4 mm) travel digital dial indicator that reads out in mm or inches. It has one little door holding a button battery, and it seems to have an un-advertised feature hiding behind door #2, which looks like 4 PCB edge contacts, likely for a data transfer cable. I assume this is something that someone uses in some factory tooling somewhere. Possibly logic-level RS232 data, but the company isn't interested in supporting it for all customers so they don't sell the cable for it. Anyone hacked into this? The brand is "Qnkaa".I got it as Amazon item# B0CC5JVM3V Electronic Digital Dial Indicator with Magnetic Base Holder Fine Adjustable Long Arm 0-1" / 25.4mm Inch/Metric Conversion Professional Gauge 0.01mm/0.001"

author: Roehrenonkel
author_rank: Frequent Contributor
timestamp: December 22, 2024, 08:41:18 am
content: Hi,maybe this fits:https://de.aliexpress.com/item/1005002989551967.htmlGood luck

author: JBeale
author_rank: Frequent Contributor
timestamp: December 22, 2024, 04:11:00 pm
content: Yes, that one is the closest thing I found, but in the photos you can see the indicator end of that cable assembly uses a micro-USB connector, while my meter has only 4 flat pads on the PCB. I agree it is plausible they could actually be electrically, if not physically compatible.

author: Roehrenonkel
author_rank: Frequent Contributor
timestamp: December 22, 2024, 06:16:36 pm
content: Hi,if you don't mind attaching a connector this might help:https://hackaday.io/project/511/logsorhttp://www.dl1dow.de/artikel/messuhr_interface/index.htmGood luck

author: JBeale
author_rank: Frequent Contributor
timestamp: December 22, 2024, 11:23:40 pm
content: Excellent, thank you! I see this meter has indeed been analyzed and the data port can work, that is exactly the information I was hoping to find.regards,John
Australian AC power board failure - Page 1
Forum section: electronics / general

author: jonovid
author_rank: Super Contributor
timestamp: December 15, 2024, 03:20:43 am
content: the power board went open circuit after only a short period of time of a less then 600w load.cycling of the on board switch with some plug packs & a computer.the failure was in the rocker switch.dust particles can get down between the plastic switch case and the plastic switch rocker. sitting on the electrodes at the bottom.the fix was to bypass the switch by some resoldering. as the reassembling the cheap plastic rocker switch was unsuccessful.Australian branded Jackson power board is considered reliable with better quality more robust plastic housing then cheap no-name boards.with its own 10amp circuit breaker.

author: wilfred
author_rank: Super Contributor
timestamp: December 15, 2024, 03:40:22 am
content: They're all built a cheaply as possible and the best you can hope for is to buy it from a bigger retailer like Woolworths and hope they at least checked them over for safety and to preserve their own reputation. At least you can easily then get a refund/replacement.If it was only a short time and before you dismantled it I would have taken it back you probably would have readily got your money back. These big retailers have no trouble pushing returns back on the supplier. What they can't afford is wasting staff time on refunds.This would be the one place where those triangular tamper-resistant screws would be a good thing. Keeping the return option open before it's too late.

author: Gyro
author_rank: Super Contributor
timestamp: December 15, 2024, 12:31:56 pm
content: Frankly that's pretty standard for supermarket / DIY store stock. You were unlucky - the normal failure mode for those switches is the contacts welding closed on high inrush loads.The soldering is pretty crap, but effective. The cable strain relief is suspect (you want one with visible screw clamps). The VDR does have a thermal fuse heatshrinked in close contact but soldering the PCB to potentially flexing contact strips is not great.I think you'll struggle to find better without close examination, or buying a more 'pro grade'. Check ebay for used server rack power distribution strips.

author: Brumby
author_rank: Unknown
timestamp: December 22, 2024, 09:27:37 pm
content: Quote from: wilfred on December 15, 2024, 03:40:22 amOnly if you don't have a set like this....

author: wilfred
author_rank: Super Contributor
timestamp: December 22, 2024, 10:58:41 pm
content: Well, hopefully by the time you've found them you have time to think on it, and you decide to return it instead of opening it up.
FREE! items to good homes - Page 1
Forum section: electronics / general

author: Analog Kid
author_rank: Super Contributor
timestamp: December 21, 2024, 09:48:22 pm
content: I've got two things that I have no use for that may be useful to others, and I'd be quite happy to drop them in the mail to anyone who might want them.First item is a small module, an Espressif ESP-WROOM-02, which I believe came out of a Roomba vacuum that was given to me:Second item is a Linx development board, marked "MS/HS master development system":So far as I know, these are both working. Both have no visible signs of damage. Of course, I can't be sure about this, but hey, they're free!If you want either one send me a PM. The only thing I won't do is mess with any customs stuff, so if that's the case for the country you live in, sorry.
blink outdoor 4 / hack ? - Page 1
Forum section: electronics / general

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: December 20, 2024, 02:28:02 am
content: One of those Amazon [ little info before buying ] deals .Took out of box to get setup to use , & found that it did very little without paying for a subscription .Put back in box to return , got a refund - but was told do not return ?So now I thinking about if there might be a way to use without subscription and have just couple basic functions - would like to set up to record locally through WiFi , or BlueTooth - the only option to record was to internet storage with subscription .Looking for ideas / options ?

author: u666sa
author_rank: Frequent Contributor
timestamp: December 20, 2024, 10:06:31 am
content: Sell that thingBuy couple of small or tiny cameras for a notebook, the smaller the better. From Sony VIAO usually smallest.They are USB. So you can connect them with a quality USB 2.0 4.5 meter cable to an old notebook.Using Xeoma software, which is free and paid, depending on version, you have yourself a video surveilance system.Now keep in mind, you can make that cameras looking like a regular cable, so they are hidden, plus your notebook has a battery, so no power outtages can disable it, and also you can mess with camera filters and make them night vision.

author: u666sa
author_rank: Frequent Contributor
timestamp: December 20, 2024, 10:07:42 am
content: As far as your Wifi high tech camera stuff. In comes me and using Wifite2 and airgeddon jamming you, stealing your cameras, and your porch chair.
Reviewi on decent desoldering tools (set) - Page 1
Forum section: electronics / general

author: marhuum
author_rank: Contributor
timestamp: October 31, 2024, 01:22:40 pm
content: One knowledgeable and kind enough to shed some lights on reviewing few decent desoldering tools sets that'd would expectedly solve all real desoldering works and problems, preferably could give comparisons out of them in the availability, price, commonness, and pros & contras ?Any sincere help will definitely sincerely be appreciated and gratified. thanks in advance

author: Giallograle
author_rank: Contributor
timestamp: November 04, 2024, 03:45:28 pm
content: I'm interested in the same.Was thinking about getting a Hakko FR-301, and wondering whether there are any quality Chinese products/brands at a similar or lower price which offer both SMD and through hole functionality?

author: u666sa
author_rank: Frequent Contributor
timestamp: November 06, 2024, 04:59:26 pm
content: Kaisi K-331 is great manual sucker.https://aliexpress.ru/item/1005006203288797.html

author: Giallograle
author_rank: Contributor
timestamp: November 08, 2024, 04:00:06 am
content: The Quick TV2 (200W) and 201B (120W) look better value than the Hakko 301, no need to use a 120/240V converter, and at the upper end of the Chinese manufacturers.Has anybody used both? Or can comment on the choice?

author: Orange_times
author_rank: Newbie
timestamp: December 18, 2024, 10:15:06 am
content: Seems the quality is good, this guy seems to be satisfied with it
Oldish JBC CD-BD soldering station hackable to be compatible with tweezer tools? - Page 1
Forum section: electronics / general

author: Darkwing
author_rank: Contributor
timestamp: December 12, 2024, 02:03:20 pm
content: Dear folks!I own aJBC CD-DB Compact Soldering Station(that is meanwhile discontinued). I now want to use a tweezer tool, like theAM120, on it."Officially" there is no tweezer tool for it, but I wonder if someone has experience and can tell, whether it will work anyway – or if it is at least worth trying.There's a newer compact soldering station, theCP series. It almost looks identical, but the 5-pin plug for the tools are different. Is it worth trying to make an adapter of some sort, to be able to plug in the tweezer tool occasionally?Backside old CD-BDBackside CPFor Reference:Manual CD-BDandManual CPIs it hackable?Thanks for any suggestions!

author: thm_w
author_rank: Super Contributor
timestamp: December 12, 2024, 10:56:39 pm
content: Here someone said didn't work on CD-2C:https://www.eevblog.com/forum/beginners/soldering-station-jbc-cdb-vs-cds-which-one-to-get/msg3090086/#msg3090086Here said it works on 2D:https://www.eevblog.com/forum/projects/diy-jbc-nano/msg1188340/#msg1188340But maybe thats newer than what you have?You could connect a 68k resistor and see if the station displays the tool type or not (https://lajtronix.eu/2024/02/08/jbc-3-tool-selector/), does it show tool type when you plug in the handle? Or take apart and look inside.If it doesn't support then not sure if you can make an adapter, you could parallel the heaters, but, it might be too much current for the station.

author: Darkwing
author_rank: Contributor
timestamp: December 14, 2024, 11:57:18 am
content: Thank you! There's a lot to go through here for me, will have a look!Alternatively: can you maybe recommend a hung-lo tweezer tool, that's at least usable for occasional little jobs?

author: thm_w
author_rank: Super Contributor
timestamp: December 16, 2024, 10:51:02 pm
content: For under $100 probably this is the only semi decent one right now:https://www.eevblog.com/forum/blog/eevblog-1650-sequre-ht-140-smd-desoldering-tweezers-review/Next step up is around the $250 level.

author: Darkwing
author_rank: Contributor
timestamp: December 17, 2024, 01:50:38 pm
content: Thank you very much!
Solder Peak SP-1010DR backlight blinks randomly with AC switch off?! - Page 1
Forum section: electronics / general

author: atarian
author_rank: Contributor
timestamp: December 15, 2024, 05:10:06 pm
content: This is really hitting my nerves. Sudenly, blue display backlight randomly goes up for a fraction of a second, once every while. It does that when the unit is switched off properly, just sitting cold on my desk. I am not making this up. I opened the unit and clearly, AC-L (only) is switched wire to PSU. Can someone please tell me what to look for?

author: thm_w
author_rank: Super Contributor
timestamp: December 16, 2024, 10:44:42 pm
content: Is there a cap across the switch?Maybe measure resistance/capacitance across the switch, see if its normal or off.You can also do what I advise: plug all soldering equipment into a switched power bar, and only use the power bar to switch all equipment on and off (including a light + fan).
939D+ Extension Cord - Page 1
Forum section: electronics / general

author: sabarrett328
author_rank: Newbie
timestamp: December 10, 2024, 05:06:10 pm
content: Hi All,I'm a hobbyist that tinkers with electronics, wood, metal, cars, microcontrollers, and any other sort of item. My old soldering iron finally had too many melted spots in the cord that I got poked from, so I decided to order a 939D+. I like the station, but the cord for the iron is so short, it makes it awkward working on my bench. I was thinking of making up an extension cordset, but I'm at a loss finding the connectors. I was stumbling around Digikey and have not found what looks like the connector yet. Does anyone know what the connector is? Is there any reason I should NOT do this?

author: thm_w
author_rank: Super Contributor
timestamp: December 10, 2024, 10:11:58 pm
content: Looking at photos online it seems to be standard GX16 or maybe GX12 5 pin.Easily available from aliexpress.You'll have to measure the connector to see what diameter it is.https://bulkman3d.com/product/gx16-male-and-female-connector/

author: sabarrett328
author_rank: Newbie
timestamp: December 12, 2024, 08:45:41 pm
content: Thanks for the assistance. Those sure look correct. I'll have to measure these when I get home and see what it is.

author: sabarrett328
author_rank: Newbie
timestamp: December 13, 2024, 02:40:00 pm
content: Based on measurement, its the GX16. One on the way. Now to find some decent wire for the extension...Thanks again.
Recommendations for Soldering Iron and Hot Air Station for Automotive Electronic - Page 1
Forum section: electronics / general

author: ukmechanicalengineer
author_rank: Newbie
timestamp: December 14, 2024, 01:32:47 pm
content: Hello everyone,I'm diving deeper into automotive electronics repair and am seeking advice on proper tools to invest in—not the best tools for all the money in the world, but not cheap, one-time-use options either. My focus will be on repairing dashboards, engine ECUs, airbag modules, multimedia units, soldering out EEPROMs, small processors, SMD components, and connecting programmer wires to boards. My tasks will include reprogramming, key cloning, and fine soldering work.For the hot air station, I’ve almost settled on the Atten 862D, as it seems to offer good airflow, power output, and reliability. However, I’d appreciate any feedback or alternative suggestions.Now, I’m looking for recommendations for:Soldering Iron:Reliable and precise, suitable for both small SMD components and occasional through-hole repairs.The main concern I have, based on reviews I’ve read and watched, is the risk of current leakage from the tip, which could damage sensitive components.Budget is flexible, but I’m looking for good value for money. I’m currently considering soldering irons from Sugon, Aixun, Atten, or Quick, paired with 245, 215, or 110 handles that can use original JBC tips.Accessories:Soldering tips (which ones would be the most versatile for automotive work?)Flux types (gel/paste/liquid) for cleaning and enhancing solder joints.Solder wire (specific alloys or brands you’d recommend for automotive PCBs?).Magnifying tools or microscopes for detailed work.Anything else I should consider for starting with ECU and dashboard repairs?I’m based in the UK, so I’d also appreciate any recommendations that are easy to source here. I’m searching for equipment that’s reliable and won’t need replacing after just a few months.I’d love to hear about your setups or lessons learned, especially if you’ve worked on car electronics.Thanks in advance for your advice!
Teardown: Recom 480V 3 phase to 24V 960W PSU - Page 1
Forum section: electronics / general

author: NiHaoMike
author_rank: Super Contributor
timestamp: December 08, 2024, 04:05:26 am
content: I managed to get two of those PSUs for $3 each from the Arrow Electronics sale. Partly to mod one into an auxiliary power supply for solar applications, partly to understand how such high voltage PSUs are designed.To open it up, remove 4 screws on the back (heatsink), then wiggle the cover free of the terminals.I'm surprised to see a huge empty space inside (maybe the case is shared with a higher power version?) and even more surprised to see the high voltage transistors attached to the heatsink with only a thin silicone pad in between. I recall a teardown of a different high voltage PSU using much thicker ceramic slabs for coupling the transistors to the heatsink.The HV board, oddly enough, has the fuse on the output of the bridge rectifier. That I don't understand, it means a short in the rectifier itself would not be protected against (which would make quite a fireworks show on a 480V supply!) and the fuse would have to be rated to break DC current. (The three black things on the input are ferrite beads for EMI.) The high voltage transistors are FQA11N90 in a full bridge configuration, which at 900V rating doesn't leave much margin at the claimed 575V maximum input rating, especially with no snubbers. The thing in the middle that looks like an iron core transformer is a choke for passive PFC.A UCC3808A-1 is the controller with a 4060 dithering the switching frequency.The LV board is about what you would expect, transformer, rectifier, output filter, and feedback. The rectifiers are DSSK60-015A in center tap configuration.

author: MathWizard
author_rank: Super Contributor
timestamp: December 13, 2024, 02:15:12 pm
content: $3 each, thats a steal, IDK really what they are for, but even if you bought them just to reuse the parts, I'd be thrilled. I wish I lived nearer to major cities, or back when it was worth repairing common electronics.
cheap Kmart AM FM radio teardown - Page 1
Forum section: electronics / general

author: jonovid
author_rank: Super Contributor
timestamp: December 16, 2024, 06:47:03 pm
content: I assume that the radio IC with its text scrubbed is a multiband 16 pin BK1198 the same chip sold by Jaycar for its cardboard AM/FM kit radiocheap Kmart radio has good sensitivity on both AM & FM but will go into self oscillation when its two AA calls get low.opportunity for DIY

author: shabaz
author_rank: Frequent Contributor
timestamp: December 16, 2024, 08:42:50 pm
content: From the layout in the photo, I recognize the IC, it's possibly Si4825, or a clone of it. By chance I used the same IC once, for a little toy radio for kids.The circuit diagram is attached, it's likely that most of the radio portion may be near-identical to the one on your board.It is quite a nice IC for DIY construction, with zero trimming unlike older radio receiver circuits.Not great performance, but reasonable enough for a low-cost pocket radio.
Aifen A11 USB Pencil Iron C210  - Page 1
Forum section: electronics / general

author: OneGeekGuy
author_rank: Regular Contributor
timestamp: December 11, 2024, 10:11:02 pm
content: Hi everyone,I just received one of these Iron Solder Pencils, one of tens you can buy online, just wanted to check how it works. I did not find much info about it, and did not have much time to test it, but I wanted to share some pictures in case someone is interested.It uses C120 tips, but I do not check if JCB tips work here, the one which come included are from MAGMA.The devices from construction perspective is really, really simple, and looks a bit flimsy.I will do some test during this week:- Temperature- Power- Tip to ground resistance (Here I have always the doubt if needs to be measure with the device powered or not)For the moment and due to lack of time I leave here the pictures

author: OneGeekGuy
author_rank: Regular Contributor
timestamp: December 11, 2024, 10:12:36 pm
content: Adding 3 extra pictures due to size limitation. Good quality (I hope)

author: thm_w
author_rank: Super Contributor
timestamp: December 11, 2024, 10:58:42 pm
content: Nice photos, it does look incredibly simple.C210 tips, it will definitely work with JBC originals, but at this price point its hard to justify spending more on an original tip than the iron itself.Power with voltage will be the interesting one. Some drive the C210 at over 60W.The Ksger C210 was solidly made aluminum, but they don't sell that model anymore. The newer one looks cheap in comparison:https://www.aliexpress.com/item/1005005519807256.html
Good sources for JBC compatible cartridges on AliExpress? - Page 1
Forum section: electronics / general

author: SuperFungus
author_rank: Contributor
timestamp: November 12, 2024, 01:45:31 am
content: I just got an AiXun 420D and I'm looking to get some more cartidges for it. it came with several, but all of the "knife" or "conical" variety. I would like to get some chisel and hoof tips as well.Does anyone have any preferred sources for these cartridges at reasonable cost? There seem to be a million different sellers on Aliexpress, and it would help to which stores and brands to avoid or seek out.

author: thm_w
author_rank: Super Contributor
timestamp: November 12, 2024, 10:04:03 pm
content: Stick with the larger brand names from reputable sellers: i2c, aixun, etc. Certain shapes like hoof you may not find at all in clone tips, so get original JBC.I bought a few from Yuanpin but their QC is questionable and I don't trust that you'll even get what you order in the photo:https://www.aliexpress.com/item/1005007090056428.htmlhttps://www.aliexpress.com/item/1005007094753179.htmlThere are a lot of original tip sellers popping up, maybe consider them:https://www.aliexpress.com/item/1005004638991582.htmlhttps://www.aliexpress.com/item/1005006014411718.html

author: thm_w
author_rank: Super Contributor
timestamp: December 11, 2024, 01:44:33 am
content: I received an original C115 tip, cost was ~$30:https://www.aliexpress.com/item/1005005900373122.htmlSome shapes are up to $43.Visually it clearly is better than the OSS tip, in finish and in design. The OSS has rough surfaces. Length is the same but the OSS is proportioned differently, to the point it doesn't work with the stand removal tool on the aixun T380.Tinned section of the OSS is larger, which can be good for general use.OSS tip resistance: 2.95 ohmJBC tip resistance: 3.52 ohmPerformance of the real JBC tip is significantly better.For some reason the OSS tip just bounces between 20 and 60 percent power draw, the JBC is constant at ~50%. This makes me think its a bug or current limit within the T380 though. I don't have another station to compare to yet.For $4 is the OSS C115 tip usable? Absolutely. I would start with that and upgrade if you need more.JBC left OSS right:
De soldering station solder peak sp 1020D question  - Page 1
Forum section: electronics / general

author: Tailosdk
author_rank: Newbie
timestamp: December 13, 2024, 09:19:26 pm
content: I just bought the Solder Peak 1010DManual seems quite lacking in the assembly part.I have a rubber disc with a hole in it I have no idea where is to be placed (see picture)Anyone know?

author: mahi
author_rank: Regular Contributor
timestamp: December 13, 2024, 10:04:46 pm
content: The rubber disc is the seal that goes into the front of the desoldering gun. See this video for details:https://youtu.be/I6_d4zF04Mo?t=566You can also see it in picture 12 ofSolder Peak SP-1010DR (ZD-915 rebrand) teardown.

author: Tailosdk
author_rank: Newbie
timestamp: December 14, 2024, 08:37:35 pm
content: Ah thanks! Lifesaver right there.
Bead Thermocouple Velcro Strap - Page 1
Forum section: electronics / general

author: brims
author_rank: Contributor
timestamp: December 06, 2024, 03:23:24 pm
content: I regularly use beaded thermocouples at work, the bare bead is fine except that I run through a lot of electrical tape attaching them for the few minutes I need to take readings. The Fluke clamp is nice, but expensive and won't fit most of the pipes I need to take readings of. I like the velcro strap version, but I'm not spending $140+ for a pair of them when I could buy 100 bead thermocouples and 10 miles of electrical tape for that price.I have been searching for the brass ferrule, for lack of a better description, that these velcro thermocouples use to attach the beaded thermocouple to the velcro strap but can't seem to find anything. My question is, does anyone have any idea what this piece is called, where to source them, or any other information? Thanks in advance.

author: thm_w
author_rank: Super Contributor
timestamp: December 06, 2024, 10:33:51 pm
content: It would help if you linked the fluke product in question or added a photo:https://www.myflukestore.ca/p4132/fluke_80pk-11_type-k_velcro_thermocouple_temperature_probe.phpyoutube.com/watch?v=5neEm_Tzp00So it looks like its for wrapping around a pipe.I don't think the brass part is necessarily needed? You could use a thermal pad behind the sensor. But maybe that part would give it better contact. Anyway, you can either find different thermocouple type with a flat bottom, or use the crimp you are talking about, and secure it to the velcro with thread or glue.https://www.digikey.ca/en/products/detail/te-connectivity-amp-connectors/41559/288437https://www.aliexpress.us/item/3256803237040242.htmlhttps://www.aliexpress.us/item/3256804356401949.html
Looking for a manual for Fujitsu ePS80WL DC power - Page 1
Forum section: electronics / general

author: whowe
author_rank: Contributor
timestamp: August 16, 2021, 03:22:44 pm
content: I just got an old DC power. It's cool. But I can't find a manual. By any chance, some friends here in eevblog has a manual for it?

author: NoobnFish
author_rank: Newbie
timestamp: December 28, 2024, 07:42:22 am
content: https://wenku.baidu.com/view/4020efa10029bd64783e2cf0.html?_wkts_=1735371242587check this link. It works fine.
Recovering a 1.9kWh li-ion battery to repurpose it. - Page 1
Forum section: electronics / general

author: najrao
author_rank: Regular Contributor
timestamp: December 11, 2024, 12:07:02 pm
content: I have this 'Cube2' EV 2-wheeler battery, history unknown. It has 168 × NCR18650BD 3180mAh×30A Panasonic cells, in 14S×12P formation, and has a nominal rating of 50.4V, 38Ah. The BMS and external communication interface are out of this world, as is the whole construction and packaging.I may have recovered the neglected battery by slow, monitored charging. I put in some 12Ah over 16 hours, starting with 500mA and ramping up to 2A over the hours. It is now at a rest voltage of 49.7, a little under 3.6V per cell. I charged with the BMS bypassed. The 12 parallel banks are remarkably well voltage-balanced, the spread being less than 40mV.I have stopped further charging for now, and the self-leakage over 24 hours was 80mV in 50V! A short burst of fast charging at 6A incremented the voltage only 400mV, so degraded internal cell resistance does not appear to have set in. I do have a 54.6V 6A li-ion charger, and can tweak the voltage up a little for full charge of 14S battery, or leave it alone for extra battery life.Now, the BMS board has no strange connections from the battery: other than the two power wires, there are just the normal inter-cell taps to a dedicated socket, and four 6k ntc thermistors to another. However, another socket branches out to a display and 'communications' board. This has 4+2 bicolor LED's and a bluetooth chip and much else! I don't know the much else just yet. Connections to the outside world are at a dedicated 'power' socket, which also has four 'signal' pins, detail unknown. With these latter unused, the BMS does not turn its power switches ON for charging or discharging.The manufacturer's colorful webpages hide every technical detail meticulously, and 'download datasheet' which is offered after registration, does not work. I am not familiar with the practice of other manufacturers, and so know no more.If only I can get the BMS to do its stuff and let me charge and discharge safely, I would put this battery to use to power a big UPS.I do have two other 7S 40A balancing+BMS boards. Perhaps there is a way of operating them in series for the 14S needed?Any insights and advice would be immensely helpful, thank you sirs.Edit 1: 12//, not 14, corrected.

author: thm_w
author_rank: Super Contributor
timestamp: December 11, 2024, 10:25:16 pm
content: Anything on the microSD card?You can try to trace the four signal pins, see if they end up on a CAN transceiver or if they go to IO.Can you add a photo of the communications board. Maybe if you figure out how to power that up, it will use some generic bluetooth app?

author: najrao
author_rank: Regular Contributor
timestamp: December 12, 2024, 06:03:09 am
content: [ Specified attachment is not available ]Thank you, thm-w.These are deep waters, and I never learned to swim!I attach more pictures, both sides of the two boards. And a correction: the bluetooth chip is on the back of the main BMS board, not the comm one.
Crimp tool hex size for outer ferrule of RG-316 - Page 1
Forum section: electronics / general

author: matthuszagh
author_rank: Frequent Contributor
timestamp: November 29, 2024, 10:32:01 pm
content: I've got a Daniels HX4 and am looking to crimp the outer ferrule for RG-316. Can someone confirm the die hex size I should use for this? I think it's 0.178" (the Y204P), but I'm not sure. Can some confirm? Thanks.Also, is there a good way to determine this for general cables based on the cable dimensions?

author: shabaz
author_rank: Frequent Contributor
timestamp: November 29, 2024, 11:12:44 pm
content: I don't have that tool so I don't have a part-number, however, in terms of dimensions, it should be in the CAD drawing of the connector (see example screenshot). Usually, for RG-316 connectors, it would be a 0.128" across flats hex crimp.

author: matthuszagh
author_rank: Frequent Contributor
timestamp: November 30, 2024, 09:33:59 pm
content: Thanks - that's helpful. Unfortunately the connector I'm looking at does not provide that info in the drawing. But, I would expect it's the same. I think the appropriate die is the Y196 then.
Can you identify this Weller station? - Page 1
Forum section: electronics / general

author: salomonander
author_rank: Regular Contributor
timestamp: November 29, 2024, 11:06:26 pm
content: Hey there,i was offered the „WXR3“ station that does not add up for me. The frontpanel says WR..?M (WR 3M) but the connections are WX generation and the seller claims that its indeed a WXR3. Anyone have an idea if this is legit?Cheers

author: mahi
author_rank: Regular Contributor
timestamp: November 30, 2024, 08:28:38 am
content: I see a WX handpiece (with some missing bits), WX-style connectors and no LEDs above the connectors. This is a WXR 3.But you are right that the front panel says WR 3M. My guess is that the original WXR 3 front panel was damaged and replaced by a WR 3M one (just the black plastic part). They are identical apart from the print.If you are still in doubt, ask for a photo of the display while powered on. The WXR 3 has a graphical display, while the WR 3M has a 7-segment display.
Maglite ML50L 2-cell C Eco mode does not work. Replaced under warranty. - Page 1
Forum section: electronics / general

author: Hydrawerk
author_rank: Super Contributor
timestamp: November 16, 2024, 08:16:10 pm
content: Hello, I bought a new Maglite ML50L 2-CELL C flashlight and there seems to be a problem. TheEco mode stopped working!What could happen?? Anyone had this problem?Otherwise I was able to choose general, outdoor, law enforcement and tactical function sets. At Outdoor and tactical set I got a strobe mode at three clicks. That is OK.At general and law enforcement there should be eco mode at three clicks, but there is nothing, LED stays off.I only get full power at one click and low power at two clicks.There seems to be a firmware problem probably???

author: Hydrawerk
author_rank: Super Contributor
timestamp: November 16, 2024, 10:46:26 pm
content: Now I use two Ansmann maxE HR14 mono C Ni-MH 4500 mAh 1.2 V. They are new and charged in my home charger. It did not help, the Eco mode still does not work!

author: thm_w
author_rank: Super Contributor
timestamp: November 18, 2024, 11:19:25 pm
content: So just out of the box it didn't work?But you said "stopped working" which implies it originally worked.Either way sounds like a warranty issue.

author: Stray Electron
author_rank: Super Contributor
timestamp: November 18, 2024, 11:26:15 pm
content: I don't know about today but Maglite used to give a lifetime warranty. I called them about 2 years ago and they sent me some parts for my 40+ year old 5 D-cell Maglite at no charge.

author: Hydrawerk
author_rank: Super Contributor
timestamp: November 24, 2024, 01:33:03 am
content: Maglite ML50L was successfully delivered back to the local distributor. He said that the flashlight still behaves the same. Eco mode does not work. It will be probably repaired or I might get a new one. I will see in some 30 days.

author: coppercone2
author_rank: Super Contributor
timestamp: November 26, 2024, 03:57:12 am
content: it probobly means a PWM transistor got fried and its ONThese flashlights tend to blink the light from the battery in square wave control. $

author: Hydrawerk
author_rank: Super Contributor
timestamp: November 29, 2024, 10:25:27 pm
content: The distributor sent me a new Maglite ML50L 2-cell flashlight. Now all light modes work, including Eco mode. I use Ansmann maxE HR14 mono C Ni-MH 4500 mAh1.2 Vcells.
QUICK 861 Pro is fake or not? - Page 1
Forum section: electronics / general

author: sam the one
author_rank: Newbie
timestamp: August 23, 2024, 05:45:33 am
content: https://www.aliexpress.com/i/1005006635381312.htmlI cant find this products anywhere, except aliexpress.I asked Quick, but I received no answer.So maybe this is originbal Quick product, but they does not upgrade their own website?....

author: kripton2035
author_rank: Super Contributor
timestamp: August 23, 2024, 07:04:48 am
content: in europe you can find them on eleshop for examplehttps://eleshop.eu/quick-861dw-hot-air-station.htmlless stress if any warranty claim is needed !

author: sam the one
author_rank: Newbie
timestamp: August 23, 2024, 07:13:58 am
content: NO!Is not the same model.

author: kripton2035
author_rank: Super Contributor
timestamp: August 23, 2024, 11:01:58 am
content: then is seems this "quick 861 pro" is a chinese made model, only copying the original quick modelsif it is not available on reputable sellers like eleshop, then it's certainly not genuine !at around the same price (look at other models of quick on eleshop) I wouldn't buy out of europe...

author: wraper
author_rank: Unknown
timestamp: August 23, 2024, 11:13:37 am
content: Looks the same as Quick TR1300A but with a different display. I don't think it's a clone. Note that Quick has multiple regional websites with different list of models. Also they have poor search optimization, so rarely appear in search results.

author: thm_w
author_rank: Super Contributor
timestamp: August 23, 2024, 11:46:22 pm
content: Union and phonefix are selling it, so I'm sure its legit:https://www.unionrepair.com/quick-861-pro-lead-free-smart-hot-air-desoldering-station.htmlWe already have an existing thread here:https://www.eevblog.com/forum/reviews/quick-861pro-1300w-voice-commands/

author: EEVblog
author_rank: Unknown
timestamp: August 24, 2024, 01:37:01 am
content: Quick are sending me one of these. I haven't heard of any fakes?

author: DaneLaw
author_rank: Frequent Contributor
timestamp: September 04, 2024, 08:37:50 am
content: Quote from: kripton2035 on August 23, 2024, 11:01:58 amWhere do you think Quick is from??I was under the presumption that Quickisa Chinese company with more than 3 decades on its back, and these days one of the biggest soldering tool-companies in China, if not the biggest.So no real worries in the fact that a Chinese company is also getting their products made in China .. Its more or less the norm when it comes to Chinese products as they optain a lot of system-headwind from staying regional.. Chinese companies tend not to outsource production, as we love to do here in the West, like there is no tomorrow.

author: Feuerbard
author_rank: Contributor
timestamp: November 29, 2024, 12:17:25 pm
content: https://quick-global.eu/product/quick-861-pro-intelligent-rework-station/i buy one for about 230$ and it work ok and look and feel like original
Dnipro-M tools, any opinions? - Page 1
Forum section: electronics / general

author: Tation
author_rank: Regular Contributor
timestamp: November 29, 2024, 01:24:49 pm
content: TL;DR: is Dnipro-M a reputable tools manufacturer?Long version:Recently a big subset of my hand tools were stolen, so in need to replace them, from hand screwdrivers, thru grinder and drill, to air compressor. Most of them were old, so not many battery operated items, but in 2024 seems reasonable to substitute some by cordless ones.And recently discovered, really near to my family home in Madrid (ES), a Dnipro-M store full of tools. Prices seemed reasonable, but what surprissed me was for a business of this kind opening a shop here. Serious hardware stores here are more and more scarce and, when one needs some tool, usually ends in a large surface like Leroy Merlin, full of crap, or buys the Lidl version, but this, a single brand tool store? Here? Now? Really?So, I'm curious about this brand/franchise.Does anybody have any experience with these Dnipro-M tools?Thanks & regards.
Does anyone know anything about the company raytron - Page 1
Forum section: electronics / general

author: JXstaystonight
author_rank: Contributor
timestamp: November 23, 2024, 05:37:31 am
content: They claim to have released the world's first 6 micron uncooled IR detector, just this past September.I haven't found any others earlier.

author: JXstaystonight
author_rank: Contributor
timestamp: November 23, 2024, 05:47:37 am
content: Started noticing this company from tiny2c. Looking at their website, it seems like they have a presence in many directions.https://en.raytrontek.com/

author: JXstaystonight
author_rank: Contributor
timestamp: November 23, 2024, 05:48:24 am
content: A website for what appears to be their subsidiary that makes detector moduleshttps://www.raytron-microelectronics.com/
MEI/Marpet/Mech-El 1204B wire bonder mystery cables - Page 1
Forum section: electronics / general

author: ezalys
author_rank: Frequent Contributor
timestamp: November 13, 2024, 10:49:45 pm
content: I recently purchased a 1204B wire bonder at an auction and it seems to be missing a bunch of parts. In particular, it's missing whatever these two cables plug into. Any idea what this might be? My impression is it might be an NEFO supply, judging from some pictures, the Uthe 228-1, but I can't find any for sale. Can it operate without the NEFO supply? It looks like the NEFO supply is an option -- can it use an internal EFO supply, or does the NEFO supply option remove the internal EFO supply?How complex are these NEFO supplies? Could you build one? Could you adapt one from another wire bonder?

author: super7800
author_rank: Regular Contributor
timestamp: November 23, 2024, 05:47:50 am
content: I have a fully functional 1204w wedge bonder (considered trying to upgrade it to ball bonding). From what I know, the external 228 is optional. Good luck finding one, but if you look at what the supply actually does, it would be straightforward to create your own. Both mei and uthe are still around I think, and are likely more than happy to sell you parts (for a premium, I'm sure)Let me know if you need any pictures of the assemblies. Of note, your dampers are probably dried out. I found using high-quality oil was able to bring them back to life. Not so relevant for a ball bonder, but I found for my wedge bonder using light bulb filament to clean the tips worked quite well.
Casio fx-61F - The best calculator ever made for electronics engineers? - Page 1
Forum section: electronics / general

author: kuzibro
author_rank: Newbie
timestamp: March 26, 2023, 11:24:08 pm
content: Hi everyone,I know Dave loves the classic Casio fx-61F from 1988 - really the only calculator from a major brand ever designed specifically for electronics engineers.I made a video about it from the point of view of a calculator collector some of you may find interesting. If you are interested in calculators I also have a lot of other videos, mostly about vintage HP and Casios.

author: martinot
author_rank: Regular Contributor
timestamp: November 11, 2024, 07:41:41 am
content: Quote from: kuzibro on March 26, 2023, 11:24:08 pmGreat review! Thanks!
What's wrong with this Newvicon tube camera? - Page 1
Forum section: electronics / general

author: Ben321
author_rank: Frequent Contributor
timestamp: December 29, 2022, 08:15:01 am
content: I bought this small handheld Newvicon tube video camera from eBay, and it worked perfectly for the first few minutes it was on, and then it started to lose the red color channel, and now it has no red color output. Everything is a shade of blue, green, or cyan. I displayed this picture as a test picture (attachment called Test Image.png) on my computer monitor in Photoshop, and then captured it with the camera in question along with a USB video capture dongle. This is the resulting picture (attachment called Captured Image.png). As you can see, there's missing red in the picture. I was hoping here I might find someone familiar enough with imaging-tube based cameras, that they could maybe tell me what would cause the loss of a color channel. Other than that one problem, it works as expected.

author: Ben321
author_rank: Frequent Contributor
timestamp: December 31, 2022, 10:11:59 am
content: Does nobody know what is wrong with this camera, based on the description I gave and pictures I posted?

author: jonpaul
author_rank: Super Contributor
timestamp: January 09, 2023, 01:42:52 am
content: bad tube, or lose connection eg tube socketj

author: Beauregard42
author_rank: Newbie
timestamp: November 09, 2024, 04:40:18 am
content: It may be a potentiometer inside the camera. This kind of tube used a color filter over the tube, with a WHITE-CYAN-GREEN pattern. They subtracted the cyan from the white to get the red channel, and the green from the cyan to get the blue channel. Open it up and check all the caps and pots.
4K UltraHD USB3.0 1080p 60fps HDMI capture card on MacroSilicon MS2131 chip - Page 1
Forum section: electronics / general

author: u666sa
author_rank: Frequent Contributor
timestamp: November 06, 2024, 12:49:16 pm
content: So this teardown and firmware dump for one of these USB3.0 (USB 3.2 Gen 1) 1080p 60fps HDMI capture cards from aliexpress, also amazon eBay and whole bunch of other online places.https://aliexpress.ru/item/1005003604965409.htmlThese capture cards come in black, two shades of blue, and perhaps in other colors. Also, in same aluminum body there could be different implementations on different chips and with different capabilities. This particular teardown is on card based on MS2131 chip.http://en.macrosilicon.com/info.asp?base_id=2&third_id=76WARNING: You can easily buy a capture card on a different chip and have a bad experience with these. Review different available chips above and only buy in places where people did a teardown, such as the ali link above.JZY-2131 HDMIAUDIO-20230920-705The board is modified with heatsink over the chip. From factory it comes without heatsink. These cards have two firmwares, with one firmware only 50 fps 1080p is possible, while with other 60 fps 1080p is possible. Also, on one firmware during startup there are color test bars, while with the other firmware only blank screen during startup.Operation is straight forward, you plug in the HDMI and plug in the USB 3.0 and everything works out of the box. HDMI bypass is condensed or compressed and looks ugly, so I don't recommend using that feature unless you absolutely have to.USB version is 3.2 Gen 1.Supported resolutions.I've been using it with my microscope camera for recording in OBS for 7 months and had no problems, other than some screen flicker with some green lines when hot, but that got solved with a heatsink.Firmware:MS2131_hdmi_to_usb.zip(72.18 kB - downloaded 155 times.)chip is ZB25WD40read with T48Two versions, 60fps and 50fps.