hybridfree/eevblog-posts huggingface dataset:
Good Molex Crimp Die Sets? - Page 1
Forum section: electronics / general

author: eng101
author_rank: Newbie
timestamp: January 09, 2020, 05:09:49 pm
content: 1) Looking for third party die that will crimp Molex SL (70058 family ->https://www.digikey.com/short/zcn1t0) and/or Molex Mini-Fit Jr (5556 family ->https://www.digikey.com/short/zcn18q) in a single action (both wire and insulation), an alignment blade would be awesome too. Someone mentioned that Pressmaster has a die that might work for some of these but I haven't been able to identify which one.2) Would be great if there was corresponding electric crimp tool similar to the one linked here that took above die (this one is pneumatic which would be ok but I'd rather not have to hook it up to the compressor)https://www.amazon.com/IWISS-AM-10-Pneumatic-Terminals-Ferrules/dp/B00K0EQ6W2Looks like Molex had something like this in the past (https://www.digikey.com/product-detail/en/molex/0638161500/WM15281-ND/5291152) but seems to be obsolete now, also absurdly expensive. The dream would be one that takes Molex SL crimps on tape, feeds them and lines them up with the die. Seems like there are lots of cheap Chinese wire strippers and cutters but not many crimpers. This might be a fun intern project if we can find a good die to design around!!We're in a narrow spot where our volume and leadtime means it barely makes sense to make the drawing and outsource the cable harness but also high enough that it's a pain to waste a day of engineer time crimping.

author: langwadt
author_rank: Super Contributor
timestamp: January 09, 2020, 06:06:53 pm
content: I'd like to know if you find something. I've been looking for a cheap crimp tool for mini-fit jr. but I have yet to find anything that is even close to as easy and quick as the "official" $400 molex one

author: jfiresto
author_rank: Frequent Contributor
timestamp: January 09, 2020, 06:48:01 pm
content: A quick search found thisTaiwanese+German Mini-Fit Jr. crimping tool. For the price it is worth a shot. The company, MDPC, write that they "ship to every country in this world." Shipping from Germany to most countries can be quite reasonable.EDIT MDPC also ships out ofother countries.
iPhone X Goes in and Out of Charge - Page 1
Forum section: electronics / general

author: bostonman
author_rank: Super Contributor
timestamp: January 08, 2020, 07:10:19 pm
content: I don't have an outlet near me at work and use the USB to charge my iPhone X.Recently my system was updated including Win10. Now the phone constantly shows 'allow phone to access......' and it seems the phone is going in and out of charge.It's obviously the computer because it began after getting a new PC. Is there a power setting that needs to be changed?

author: Veteran68
author_rank: Frequent Contributor
timestamp: January 08, 2020, 08:40:04 pm
content: Have you installed iTunes on the PC? I'm pretty sure that iTunes contains an Apple device driver that helps recognize your devices so that it doesn't nag you constantly. Anytime I plug my iPhone or iPad into a PC (like my work computer) that doesn't have iTunes, I have to constantly answer the nag. Since I only charge and don't sync to my work computer, I stopped plugging into it and just an external charger.Also, many USB ports on PCs charge newer iPhones poorly. Starting with the iPhone X, they can now pull more charge current than just the 1A of the older models, so I've seen them be finicky with some PC USB ports, and complain about not being able to charge.Finally, try another cable if you haven't already. iDevices are also finicky about cables and the slightest cable damage.
Casio WV-200E-1AVEF vs. Casio G-Shock GW-M5610 - Page 1
Forum section: electronics / general

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 26, 2019, 11:49:10 pm
content: Hello, I would like to buy adurableradio controlled digital wrist watch. Should I buy CasioWV-200E-1AVEFor CasioG-Shock GW-M5610? Or any other model? I think that only Casio produces this kind of watch.Is the tough solar useful? I have seen many reviews on youtube and people were quite happy with G-Shock GW-M5610.

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 28, 2019, 03:14:07 pm
content: No owner here?

author: SpecialK
author_rank: Regular Contributor
timestamp: December 28, 2019, 03:46:07 pm
content: I have a WVA109HA that I wore every day for three or four years. I would still be wearing it if the band hadn't wore out. I should really get a replacement strap, the Casio doesn't seem to use the standard attachment. None of my twistoflex bands seem to fit.It's really great knowing what the precise time is. In my work, it's great for spotting an untrained clock such that the problem can be resolved.

author: sarahMCML
author_rank: Regular Contributor
timestamp: December 28, 2019, 05:53:23 pm
content: Quote from: Hydrawerk on December 28, 2019, 03:14:07 pmI've had a WVA106HA for must be 8 or 9 years now. It's very similar to SpecialK's in that it has hands and the small digital readout at the bottom, but it also has a small window showing a 'receiver dish' which flashes when it updates. I'm on my second watch strap now, the first broke about 18 months ago, and it cost me ~£12 for a replacement. I've only replaced the battery once as well!Regards,Sarah.

author: coolyota
author_rank: Contributor
timestamp: January 06, 2020, 08:11:41 am
content: I have the GWM5610 watch. Best bang for bucks.Solar rechargeable battery, multiband 6, 200m water resistance.I have the watch time synced with internet time every night. You can find the source code herehttps://github.com/hzeller/txtempus

author: Hydrawerk
author_rank: Super Contributor
timestamp: January 06, 2020, 10:43:28 pm
content: Nice!
Scienscope SSZ-2 Parts Needed - Page 1
Forum section: electronics / general

author: Unknown
author_rank: Unknown
timestamp: January 06, 2020, 09:10:21 pm
content: I purchased a used Scienscope SSZ-2 Trinocular scope. I got it for a good price because the camera tube is missing. I suspect that parts, like that tube, are used by several of the scope manufactures.Does anyone know where to source parts like that?Here is a pic showing the hole where the missing part goes.ThanksJohn
Looking for a good desoldering station - thinking of the SS-331B/H/E ie newZD985 - Page 1
Forum section: electronics / general

author: Acecool
author_rank: Regular Contributor
timestamp: January 05, 2020, 08:51:51 am
content: I'm looking to buy an SS-331 series desoldering station. I was thinking of getting the Hakko gun for $250, but it is super big and bulky... and the review posted said the older variant of the cheap variant has a higher suction than the Hakko units.I do understand the one big issue is Hakko will build up to that full force before opening the gates so the few ms it takes to get up to speed doesn't cause slower air / suction to cool the solder and the cheap units don't do this. I'm looking at buying a station, because this is easy to create a fix / hack. Just a simple vacuum chamber and pressure switch / cutoff. The pressure switch controls when the vacuum turn son, and the button is tied into a valve. this way there is immediate pressure at your disposal. Also, why I want a station - there is room to built it inside the unit.The one issue I'm having is that I can't find the SS-331E variant anywhere. The E variant is 110v input. The B / H variants are 220-240.At least, this is how it is listed on the documentation on AliExpress, Amazon, etc..I am curious if this is accurate... A lot of power supplies take 100 to 240 input, and they are cheap to make. Worst case I could replace the power supply that comes in the unit with the appropriate one if it doesn't do it passively or have a manual switch - but this adds cost...I'm looking at a lot that start at around $90 USD with shipping, all the way up to $120 USD. Then there are outliers which are $250+...Does anyone have this unit and can tell me if it can be switched to 110, or not? I've watched reviews and they simply show the sticker which shows 240v... or a brief look inside which doesn't tell me a whole lot.Thanks!
QUICK 861 ADAPTOR SOURCING - Page 1
Forum section: electronics / general

author: GOD
author_rank: Contributor
timestamp: February 14, 2020, 02:08:18 am
content: YoThinking about getting a quick 861dw to replace my 968da+. I also do bga work from time to time. The problem with the quick is the nozzle compatibility compared to the Hakko fr 810b has an adapter to use older style hakko nozzle. Doing some research there is the adapter called the nk 850 but my problem is that sourcing that adapter is impossible in Australia or even in china.

author: sn4k3
author_rank: Frequent Contributor
timestamp: February 16, 2020, 01:16:39 am
content: my station come with that on box.https://eleshop.eu/quick-nk-850-adapter-nozzle.htmldon't know if they ship to your country but worth the try
JBC AD2700 - replacement for PIC/uC or program/software - Page 1
Forum section: electronics / general

author: MarkFalk
author_rank: Contributor
timestamp: January 02, 2020, 01:26:14 pm
content: Unfortunately I have killed the input-port for temperature-adjustment of the PIC in my JBC AD2700 :-(. Of course the PIC is read-protected, so I need a replacement - either a PIC or it´s software or a compatible software.Can anyone help?
The Art of Electronics, 3rd edition, considered incomplete - Page 1
Forum section: electronics / general

author: Blofeld
author_rank: Regular Contributor
timestamp: April 10, 2015, 08:28:44 am
content: Now that I have your attention, let me stress that this is a great book of the highest quality, much more complete than most other books. There is, however, something that you should know before ordering the book (instead of having a "WTF?" moment when reading it):The authors had made the decision to move some of the advanced material in some chapters on analog electronics into the upcoming book "The x-Chapters" which will be available in a few years. If they had not, there is no way that the book could have been finished by now.These are the affected chapters:Chapter 1: FoundationsChapter 2: Bipolar TransistorsChapter 3: Field-Effect TransistorsChapter 4: Operational AmplifiersChapter 9: Voltage Regulation and Power ConversionBut even the book as it is now contains an incredible amount of information, probably too much for most people to digest.In case you are interested, I have written more about the book in my review here:http://www.wisewarthog.com/electronics/horowitz-hill-the-art-of-electronics-3rd-edition.html

author: Blaffetuur
author_rank: Regular Contributor
timestamp: April 10, 2015, 09:36:51 am
content: Is there any news on the release date of the student manual?

author: Blofeld
author_rank: Regular Contributor
timestamp: April 10, 2015, 09:50:29 am
content: Quote from: Blaffetuur on April 10, 2015, 09:36:51 amDave said it would be around August 2015 (that was end of January):http://www.eevblog.com/2015/01/29/the-art-of-electronics-3rd-edition-is-almost-here/But the only thing that I found in the preface of the book is that it will be in 2015.

author: Mechatrommer
author_rank: Super Contributor
timestamp: December 27, 2019, 12:36:54 pm
content: i just got a digital copy of AOE3 and quickly compared it with AOE2. most chapters are rewritten, some figures and sub chapters are removed and added, its understandable. but the last 3 chapters are entirely missing...13) HIGH FREQUENCY AND HIGH SPEED TECHNIQUES14) LOW POWER DESIGN15) MEASUREMENTS AND SIGNAL PROCESSINGthese are not unimportant nor irrelevant subjects so i wonder if they will be included in X-version? if no, then this is a total disappointment, we cant throw aoe2 just yet and will use up more spaces. i searched in eevblog archive about the differences between aoe2 and 3 i cant find its mentioned how surprising. and i think this is the best thread to address it.i got the answer here:https://www.cambridge.org/my/academic/subjects/physics/electronics-physicists/art-electronics-x-chapters?format=HBis no. so where they had gone? blended in to the existing chapters?
Chinese DIN-rail overvoltage, undervoltage and overcurrent protectors - Page 1
Forum section: electronics / general

author: LeonR
author_rank: Regular Contributor
timestamp: November 05, 2019, 08:54:19 pm
content: I've came across some of those on Aliexpress, like these:https://www.aliexpress.com/item/4000173768389.htmlhttps://www.aliexpress.com/item/33038568196.htmlhttps://www.aliexpress.com/item/4000273878324.htmlAre they any good for OVP/UVP? I haven't found a video showing what's inside them.

author: LeonR
author_rank: Regular Contributor
timestamp: November 17, 2019, 02:53:10 pm
content: No one with hands-on experience with those? I'm interested on using something like that on my circuit breaker box.

author: salavat
author_rank: Contributor
timestamp: December 28, 2019, 09:04:03 am
content: I can comment only on TOMZN breaker. I ordered 2 contactors (switching relays), one got installed (25A NO/NC), another is noname current/power/voltage meter.Voltage meter (however it was after power regulator, which cuts off parts of a sine wave AC signal) was about the same as measured with UNI-T UT210E meter (measured voltage and current).25A relay is noisy during switch on (never had those type of relays, may be it is normal).TOMZN was a deliberate choice of the brand since I've seen reviews and inners of their components, which seems to be OK.
LPKF S103 Solder Paste Dispensing-How? - Page 1
Forum section: electronics / general

author: djsb
author_rank: Super Contributor
timestamp: December 23, 2019, 07:51:58 pm
content: I'd like to use our LPKF S103 for Solder paste dispensing. I have the syringe that came with the machine that attaches to the head and there is an air compressor attached lid that fits onto the syringe. How do I prepare the data in CircuitPro software? What does CircuitPro need to work out where to place the solder paste (the centre of each SMT pad)? Are there any tutorials or step by step instructions for this? Thanks.PS I mostly use Kicad and export gerber and excellon files as usual. I'm using the latest LPKF CircuitPro software.
Eico Model 460 oscilloscope, year 50's or 60's? - Page 1
Forum section: electronics / general

author: gtr
author_rank: Contributor
timestamp: December 23, 2019, 04:31:21 pm
content: Good morning all,Recently I bought an Eico model 460 oscilloscope and I would like to know if there is anyone who would be able to tell me which year it is.Thanks in advance! :-)
Probe Master coupon code? - Page 1
Forum section: electronics / general

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 01, 2019, 06:37:20 am
content: I want to buy a comprehensive set of test leads from their website and was hoping someone had a coupon code I could use at checkout.Cheers!

author: ender4171
author_rank: Contributor
timestamp: December 20, 2019, 01:57:44 pm
content: I don't think they have a generic code, but when you make your first purchase they give you a coupon code to use on your second (I want to say it was 10-15% off?). If you are going to be buying a lot of stuff, I would either make a small order first and use your code on the second or just call and talk to them. Their customer service is best in class, for sure. If you are ordering enough, I am sure they would be willing to talk about a discount. That said, your definition of "a lot" may be completely different than theirs!
Carbon Film Heating Pad - Page 1
Forum section: electronics / general

author: metrologist
author_rank: Super Contributor
timestamp: December 21, 2019, 12:31:10 am
content: One of Big Clive's videos inspired me to buy one of those laminated carbon film heating pads.It doesn't get warm at all, but if I sandwich a part of it between my hands, it definitely gets warm in that spot while I'm holding it. I placed an aluminum block on it on hardwood floor and it does not get warm at all. Does that sound right?Also, the seller rolled it loosely and then stuffed it into the common plastic shipping bag. Of course it got squished and there are two creases, like it got folded in three - they are not fully sharp creases though and about 1/2 way across the lamination has blistered because of this. Maybe that is the problem? It's 35W, 65cmx28cm.
ADI files a lawsuit against Xilinx - Page 1
Forum section: electronics / general

author: Bud
author_rank: Super Contributor
timestamp: December 09, 2019, 12:30:47 am
content: Analog Devices is suing Xilinx for patent infringement on analog to digital converters in Xilinx high end productshttps://www.analog.com/en/about-adi/news-room/press-releases/2019/12-5-2019-adi-files-patent-infringement-lawsuit-against-xilinx.htmlA link to the filing is provided inside, surprizingly a quite an easy read.
Metcal 500P ? - Page 1
Forum section: electronics / general

author: unknownparticle
author_rank: Frequent Contributor
timestamp: December 16, 2019, 03:59:33 pm
content: Recently, I bought the above soldering station as I have always wanted what I consider to be the best soldering tool available. As it was an almost new example, complete with 2 hand pieces, at a very good price I took the plunge. I haven't ben disappointed!So, it might be just me, but I find the Metcal website terrible, very difficult to find out what is compatible with what! Therefore, a question, is Metcal MX-H1-AV Advanced hand piece compatible for use with my MX500P?

author: oPossum
author_rank: Super Contributor
timestamp: December 16, 2019, 04:11:53 pm
content: Yes, the MX-H1-AV is compatible. Most accessories for the MX-5000/5200 will work with the MX-500. The only exception I know of are the high power handpieces that have two cables.

author: unknownparticle
author_rank: Frequent Contributor
timestamp: December 16, 2019, 06:12:01 pm
content: Thanks, much appreciated.
Crimp dies for JST-XH pins? - Page 1
Forum section: electronics / general

author: peterloron
author_rank: Newbie
timestamp: December 02, 2019, 07:44:47 pm
content: Hello. I have a nice Connex/Amphenol hand crimper. I need to crimp some JST-XH connector pins. I see there are crimp dies specifically for this, but I've only seen them available together with the whole tool. Does anyone know where I might be able to get a set of dies for this purpose?Thanks.!

author: notsob
author_rank: Frequent Contributor
timestamp: December 02, 2019, 08:10:32 pm
content: not sure of dies - but I use engineer brand crimp pliershttp://www.engineer.jp/en/products/pa09e.htmlChart of terminationshttp://www.engineer.jp/en/products/pa09_20applicatn_chart.htmlI got them from japan via Rakuten global

author: thm_w
author_rank: Super Contributor
timestamp: December 03, 2019, 10:51:23 pm
content: I'm sure the engineer ones are decent quality but are more hassle to use as you have to crimp twice.Better off with a dedicated ratcheting crimp plier, then you don't need to unscrew and swap jaws.Something like this:https://www.aliexpress.com/item/32867809648.html(TU-190-08).

author: peterloron
author_rank: Newbie
timestamp: December 08, 2019, 09:01:26 pm
content: Thanks. I might pull the trigger on that. I think I found the right dies for my existing ratcheting crimpers for a few bucks, so I'll see how that goes first.
Aifeng power supply makes more noise than my children - Page 1
Forum section: electronics / general

author: Klompenzijncool
author_rank: Newbie
timestamp: December 03, 2019, 09:18:54 pm
content: First of all this is my first post on this blog so don't shoot me if I made a mistake posting this.I fell into that Chinese trap again. I bought a cheap switching power supply from Ali Express and I should have known...It goes by the brand name AIFENG and spits out 48 volts DC and 7,5 amps.It seems very noisy to me, but I'm just an electronics beginner.Can someone tell me if this noise is normal or if this thing belongs in the trash.I attached two screenshots. One with the power supply on and one with the supply off.Thanks

author: German_EE
author_rank: Super Contributor
timestamp: December 07, 2019, 07:25:56 pm
content: Welcome to the world of cheap power supplies. It is possible to clean this up but some work may be required.1) Determine if the noise is coming from the mains input or the low voltage output. Some cheap power supplies have little or no mains filtering so this will need to be added using a good external filter.2) Ground everything including the case of the power supply, the filter from (1) above and, if possible, the negative side of the output to mains earth.3) Take a look at the output capacitors and if they're cheap crap replace them with low ESR Panasonics.4) Add 100 nF decoupling capacitors across every large electrolytic, each diode in the mains rectifier and across the outputs.5) Add type 47 ferrite beads to every wire you can plus the gate/base of the power devices.6) If all else fails consider adding an LC low-pass filter to the DC output but be aware that this will cause voltage drop. Connecting remote sense wires to the output may create a power oscillator due to delays in the control loop, don't ask me how I know this.
Rock 2 30W USB-C Quick Charge / USBPD charger  - Page 1
Forum section: electronics / general

author: thmjpr
author_rank: Regular Contributor
timestamp: November 16, 2019, 11:44:12 pm
content: Specs:USB-A output: 4.5V-5A, 5V-4.5A, 9V-3A, 12V-2.5AType-C output: 5V-3A, 9V-3A, 12V-2.5A, 15V-2A, 20V-1.5AProtocols:- USB PD 30W- QC3, QC4 30W- Huawei SCP/FCP 20WParts:-SW3516controller- 3x 22uF 400V 105C Richcap RK- 1x FCON SCA 470uF 25V- 2x ABS210 2A rectifier (why two in paralell??)- 2x 14N04ST FET (should be 42V 14A)- 3.1A fuse + PTCThey claim "two intelligent chips" but I can only see the one QFN on the top.The main chip can measure: voltage, current, and temperature (6mV, 2.5mA resolution) and control voltage in 0.2V steps.Clearance between L and N isn't great (see BD1), but primary - secondary clearance is very good.Measured minimum voltage: 3.6VMeasured maximum voltage: 12V so far (it should do 20.5V, but I need to investigate the library I used)https://www.aliexpress.com/item/33010885309.html(use daves affiliate link below)For $15 its great value.But I still need to: get it to output 20V, and measure ripple, maximum current outputs.

author: ralphrmartin
author_rank: Frequent Contributor
timestamp: November 17, 2019, 06:40:27 pm
content: I hate things of this kind with built in power pins. They often just fall out of the wall (or travel adapter) as they are too heavy, or they obscure other sockets of a multi-way adapter.Why cant manufacturers just put a standard power cable connector on them? This also allows different cables for different countries to be readily used.I'd also note that devices that provide full 100W PD are now on the market for not too much more. E.g.https://www.aliexpress.com/item/33057616517.html

author: thmjpr
author_rank: Regular Contributor
timestamp: December 06, 2019, 07:20:02 am
content: Update:I've received a RDTC66USB tester. USB-PD works at 15 and 20V as expected.But QC2 or 3 still do not work above 12V. Which is odd because the datasheet for the SW3516 specifically calls out that it supports these protocols:QuoteI can't see anything in the datasheet that would let you configure the chip to disable these modes, so I'm quite stumped as to how PD 20V can work but QC2 20V does not.There is also PE mode which might be worth looking into:QuoteBut the protocol is completely different, its using "vbus current modulation" compared to varying D+ and D- voltages:https://www.gearbest.com/blog/how-to/what-is-the-difference-between-the-mainstream-fast-charging-technologies-3182
Accessing the data from a eMMC bga - Page 1
Forum section: electronics / general

author: briandorey
author_rank: Regular Contributor
timestamp: December 05, 2019, 03:26:57 pm
content: We did a teardown on one of the Amazon Echo Input devices and the eMMC came off by accident when trying to remove one of the heatshields and so we tried to wire it to a MicroSD adapter and was able to access the Echo's OS on the desktop computer!The eMMC IC is 11mm x 10mm x 0.8mm. 153 pins, 0.5mm ball pitch and the wire used was 0.1mm enamelled wire.More info about the teardown is on my blog athttps://www.briandorey.com/post/amazon-echo-input-teardown
PACE MBT 350 Vacuum Help - Page 1
Forum section: electronics / general

author: sonicj
author_rank: Frequent Contributor
timestamp: December 08, 2019, 12:09:29 am
content: So, I just received my new Pace SX-100 solder sucker, hooked it up to my used MBT350 and no pumping action.Opened it up to find component C22 let out the magic smoke and took the part numbers with it. Anyone happen to have a schematic or a photo of their MBT350 main board? Looks like KJHsomething but can't find any other SOT23 parts on the board with that part ID.I took a look at the MBT-250 service manual, still trying to decipher the differences. Thanks!

author: PA0PBZ
author_rank: Super Contributor
timestamp: December 08, 2019, 12:03:55 pm
content: It's a slow Sunday anyway so I took mine apart:A quick search said SMB7000/MMB7000 and it sure measures like one:Disclaimer: I didn't not remove it from the pcb so I can't be 100% sure.

author: sonicj
author_rank: Frequent Contributor
timestamp: December 08, 2019, 11:37:00 pm
content: Dude, Thank you so much! I know its not easy to get that front panel board off and take measurements... I really appreciate it!

author: sonicj
author_rank: Frequent Contributor
timestamp: December 11, 2019, 02:33:15 am
content: *UPDATE* So i did some digging in my scrap bin and found a M5C on a old video card which I think should be close enough... Replaced it, and.... Nothing!Poked about with the DMM and found a P channel mosfet (Q14 FR5305) with the gate shorted to drain. Ordered some replacements from Digikey, but I grew impatient and borrowed one from the unused channel 2. Popped it in, pressed the button and scared myself when the pump motor ran for the first time!Not sure why I didn't put this in the repair section... Anywho, here's the parts I ordered if anyone in the future comes looking for MBT350 dead pump info.https://www.digikey.com/product-detail/en/diodes-incorporated/MMBD7000-7-F/MMBD7000-FDICT-ND/717887https://www.digikey.com/product-detail/en/infineon-technologies/IRFR5305TRPBF/IRFR5305PBFCT-ND/812554I bought this unit at the Orlando Hamfest for like $30 and now have a idea why it was so suspiciously cheap... I had been looking for a cheap MBT250 for like a decade, and was super stoked when I found this 350. Desoldering 28pin dips with plated through holes is pretty awesome! I regret not buying the Hakko rework unit the guy had too, but I was parked like a mile away and could only fit one in my bag. Ohh well, I'll find something cool again next year.. Thanks again to PA0PBZ for the help!

author: PA0PBZ
author_rank: Super Contributor
timestamp: December 11, 2019, 07:48:11 am
content: Thanks for letting us know!

author: eKretz
author_rank: Frequent Contributor
timestamp: December 12, 2019, 03:22:59 pm
content: Good job! Congrats on the score.

author: Shock
author_rank: Super Contributor
timestamp: December 12, 2019, 08:33:55 pm
content: Congrats, got to be happy with that! If you don't have a SX100 stand yet or thinking of buying a TJ70 contactneo_he offered a stand for free a few weeks back.Mentioned in this post.
Microfiches - Page 1
Forum section: electronics / general

author: Ben sage
author_rank: Contributor
timestamp: December 05, 2019, 05:00:17 pm
content: Hi guys I just found a Microfiche for 15$ I was wondering if I cud use it like a microscope and if it would be good it’s a canon pc 70 printer thanks

author: Stray Electron
author_rank: Super Contributor
timestamp: December 05, 2019, 05:38:01 pm
content: It s going to depend on what type media the MF is set up to use. Some use MF sheets, other uses MF on a spool (like movie film) and others use smaller film that's in a cartridge. In fact, IIRC there are two different type cartridges. some all?) MF machines are built so that you can change the mechanism to use different media (with extra cost optional parts). But usually if you buy a used one you only get the setup that's currently on it. I need a MF that reads sheets but the only machine that I found for sale at a reasonable costs had the reel setup on it. The used market (E-Greed and the like) seems to like that the parts are made of gold and wants about $600 for the lensboard and lens that I need.PS does the printer on your's work? Mine doesn't seem to and none of the few machines that I've found in this area having working printers.
Is this a genuine Hakko FM-203? - Page 1
Forum section: electronics / general

author: Sk8er000
author_rank: Newbie
timestamp: November 29, 2019, 01:28:03 pm
content: Hello,I've recently bought my first Hakko soldering station, and I decided to buy an Hakko FM-203 from USA bidding a pretty good price (but not for a clone..).Yesterday I've received the package and everything seems to look and work fine. I was pretty happy until I checked if my station is compatible with the FM-2030. To check if the 150W soldering iron FM-2030 is compatible you have to perform one of this 2 task:1) look for a black circle near the serial number under the station2) check the firmware at the boot of the station and it must be 3.00 or higher (I have 3.20)unfortunately for me is impossible to perform the check 1) because my station has NO serial neither under the station or in the box. As you will see from the photos there's the trace that there was something in both places (some left glue from the sticker on the bottom of the station and ripped paper on the box).I've asked to the seller but I haven't received any answer yet.Here's the pictures I've made to my station please help me to understand if it's a genuine product without the serial or a clone one:https://drive.google.com/folderview?id=1W9Z49F_ObnTkwH_zM5THdOLxRQo1WWbuI've read numerous posts regarding FX-888D, FX-951 and FG-100 clones, but never something regarding a FM-203 from USAThank you in advance

author: Black Phoenix
author_rank: Super Contributor
timestamp: November 29, 2019, 03:05:39 pm
content: It looks original to me.The Serial No on the Unit and on the Box were removed probably not because they are fake products but because they are probably surplus from some company or "fallen from a truck" and that way are untraceable.

author: Sk8er000
author_rank: Newbie
timestamp: November 29, 2019, 03:14:39 pm
content: Thank you very much!Even if it comes with no serial (so no warranty for a new product) I'm fine for the price I've payed. I would have lost the warranty anyway replacing the 120V transformer with a 230V (original from Hakko)
Unknown thermocouple any idea what it is? - Page 1
Forum section: electronics / general

author: Shock
author_rank: Super Contributor
timestamp: November 29, 2019, 05:47:39 am
content: I recently purchased a Fluke 52 Digital Thermometer with a hidden fault and ended up with this plus a wire type thermocouple in the box.Anyone seen these before or know what brand/model it is? I assume the cover is to either protect from the elements or for some type of ambient measurement. Seems to work fine and it detects as k type.

author: Jay_Diddy_B
author_rank: Super Contributor
timestamp: November 29, 2019, 08:33:14 am
content: Hi Shock,It is for measuring the temperature of a surface. You use it without the cover and press the probe onto the surface until the standoffs hit the surface.It is K type, identified by the yellow plug. You need a cable made with K type wire and K type plug and socket. This keeps all the metals the same in the cable.Jay_Diddy_B

author: Shock
author_rank: Super Contributor
timestamp: November 29, 2019, 09:22:06 am
content: Oh interesting, it seemed fairly accurate in free air with the cover on, I assumed it was to slowly detect ambient air temp in the capsule. You are right it does need an extension cable, it's inflexible using it straight in the socket as well, too easy to break.Any idea what these are actually called? Trying to find a picture or some info on them.
How I increased the working distance of my B&L Stereozoom microscope - Page 1
Forum section: electronics / general

author: mcovington
author_rank: Regular Contributor
timestamp: November 27, 2019, 09:52:19 pm
content: As you know, a magnification-reducing auxiliary lens increases the working distance of a stereo microscope. Here's how I got 40 mm more working distance...There is no 0.7x lens on the market for the Bausch & Lomb Stereozoom, so I designed one. To be precise, I designed a lens to go in the cell in place of my 2x lens (which I never used) and was prepared to have an eyeglass maker make it, but then found the exact thing on Surplus Shed. More here...http://www.covingtoninnovations.com/michael/blog/1911/index.html#x191120
Microscope Ring Lighting - An Interesting Discovery - Page 1
Forum section: electronics / general

author: German_EE
author_rank: Super Contributor
timestamp: November 12, 2019, 07:27:42 pm
content: If you are looking for a ring light for your microscope then start searching for 'Angel Eyes' in the diameter you need. These are normally used for car headlights on BMW vehicles (plus others) but you can get them in various diameters and they should work well as ring lights.They are of course 12V so you will still need to arrange a power supply and some mounting hardware.Edit: Seehttp://www.microscopy-uk.org.uk/mag/indexmag.html?https://www.microscopy-uk.org.uk/mag/artaug16/dw-LED-rings.htmlfor some ideas and results

author: Daruosha
author_rank: Regular Contributor
timestamp: November 27, 2019, 07:09:22 am
content: Awesome paper for upright compound microscopy. I don't have phase objectives, but it worth the try.For stereo microscopy, I'm not sure how much it's better than the classic 144 LEDs ring.

author: richnormand
author_rank: Unknown
timestamp: November 27, 2019, 09:36:05 pm
content: I found them quite useful for close-up photography of pc boards components and stuff in the lab.You have to apply the proper colour correction as they tend to be cool-white and harsh.Although they are 12V units I find that I get ample light with a 9V battery. Battery lifetime is not an issue either with the handy toggle switch below the camera body. The whole battery assembly is held by a screw in the tripod mount.Just make sure you leave enough wire lenght to acomodate the lens movement during focussing.
Weller WT1010 vs Ersa I-Con NANO vs Ersa I-Con 1V - Page 1
Forum section: electronics / general

author: CLYEAP
author_rank: Newbie
timestamp: November 26, 2019, 11:55:48 am
content: Good day everyone reading this! =)As an enthusiast engineer with some DIY and freelance work, looking for some advice from fellow experts in this forum regarding to the soldering station worth starting with.Currently deciding between (included Malaysian Ringgit for better comparison)1) Weller WT1010 with WTP90 pencil (~2000 MYR)2) Ersa I-Con Nano (~1500 MYR)3) Ersa I-Con 1V (~2500 MYR)A little background of work is doing both SMD and THT soldering, quite often. Looking forward for soldering station with good thermal recovery.The current thoughts after reading so many forums and review online,1) Weller have slight cheaper tips and the WTP90 seems like having better soldering tip retainer that last longer.2) Ersa I-Con Nano is more affordable but lack of comparison between Nano and WT1010. Plus, some feedback from others that the Ersa I-Con Nano have some ticking sound after some time.Feel free to correct me and share some thoughts in this. Thanks!
Changing Quick 861 from F to C - Page 1
Forum section: electronics / general

author: Peacefrog
author_rank: Contributor
timestamp: November 23, 2019, 08:26:35 pm
content: Sorry if I missed this discussion - I just bought a Quick 861, and while it’s working really well it’s stuck in Fahrenheit. Is there a way to switch it to C?

author: sn4k3
author_rank: Frequent Contributor
timestamp: November 24, 2019, 07:25:07 pm
content: Hold down channel 2 and 3 for a few seconds. It'll switch from F to C1 and 2 un/mute beeps

author: Peacefrog
author_rank: Contributor
timestamp: November 24, 2019, 09:02:02 pm
content: That's amazing - thank you so much! Also, apologies for the duped post; was searching on my 'phone and couldn't see it.

author: sn4k3
author_rank: Frequent Contributor
timestamp: November 24, 2019, 09:44:13 pm
content: Quote from: Peacefrog on November 24, 2019, 09:02:02 pmNo problem, it worked right? Because i can't change back to F but it's ok as i want at ºc
Vision Engineering Dynascope (TS series)  - Page 1
Forum section: electronics / general

author: SquattingDog
author_rank: Contributor
timestamp: November 22, 2019, 02:03:06 am
content: Looking for those owning a Vision Engineering Dynascope (TS series) stereoscope. I would like to know exactly what controller I need to buy that operates my oblique attachment. Naturally I am able to manually operate it but would like to have the correct controller. The wires are cut on my oblique motor. There are a couple different models on eBay but I have no idea which one is the proper one. Seems they are always missing the cables too so I don't know if that will be an issue *IF* I find the proper controller and keypad.
ABB TRIO 20 kW Solar Inverter - Unboxing and Teardown - Page 1
Forum section: electronics / general

author: madsbarnkob
author_rank: Frequent Contributor
timestamp: October 24, 2019, 07:11:15 am
content: Three-phase string inverter, 20000Wac, 2 MPPT, 4 DC inputs for each MPPT, RS485 communication interface, IP65 (NEMA4x) environmental protection degree, integrated DC and AC disconnect switch, DC and AC surge arrester (type 2), string fuses (4+4 on each MPPT) and single string current monitoringFull details:https://new.abb.com/products/6AGC002904/trio-20-0-tl-outd-s2x-400-inverterThe IGBTs and diodes used in the inverterConclusion: Impressions are real good, extremely high quality, focus on safety and made serviceable to reduce life time costs compared to throwing out and buying new units.

author: jonroger
author_rank: Regular Contributor
timestamp: November 17, 2019, 02:21:31 pm
content: Note "ABB exits solar inverter business". Perhaps this says something about the economics of building high quality electronics in high wage countries.

author: Nauris
author_rank: Regular Contributor
timestamp: November 20, 2019, 05:31:08 pm
content: Quote from: jonroger on November 17, 2019, 02:21:31 pmI think it says something about the economics of building low quality electronics in high wage countries.Warranty costs just eats any change of turning profit. It was a big mistake for ABB to acquire that business in the first place.EDITAs part of that exit ABB agreed to pay Fimer $430 million to cover warranty liabilities.

author: coppice
author_rank: Super Contributor
timestamp: November 20, 2019, 06:40:13 pm
content: Quote from: Nauris on November 20, 2019, 05:31:08 pmSounds like some really high quality electronics. I wonder why Fimer would want to take on this business? If these products are such stinkers, isn't this going to tar them with a bad name?
"Cheap" Industrial Gear who use Optical Image Sensor to harvest them? - Page 1
Forum section: electronics / general

author: Lord of nothing
author_rank: Super Contributor
timestamp: November 16, 2019, 04:02:44 pm
content: HiIn the past some people on Youtube showed that in some Medical Analysis System is a Camera (Sensor) embed for Hight Res Images of some Samples.Is there some Website or what ever who show what is possible and easy to harvest?I am looking for some Sensor or even a Module who is capable in a very low light environment (aka Night) making some Image of "low" flying Air planes.~12km hight and 5km - 10km distance.Thanks
Metcal mx-500p11 - Page 1
Forum section: electronics / general

author: yo0
author_rank: Regular Contributor
timestamp: November 13, 2019, 07:39:41 pm
content: I have the opportunity to buy a mx500, the psu is used but according to the vendor working perfectly, he gives me a new handle and 6 type 700 new bits of my choice, I only use leaded solder and mostly through hole parts, the asking price is 155usd free shipping. He gives me warranty of return and money back, do you think the system (for my uses) and price are ok?Any opinions will be really appreciated.PS.No handle stand included. But I can improvise or modify some unused stands I have lying around.Best regards.Pio

author: gibbled
author_rank: Regular Contributor
timestamp: November 13, 2019, 09:08:18 pm
content: Great deal. I'd jump on it.

author: GreyWoolfe
author_rank: Unknown
timestamp: November 13, 2019, 10:57:52 pm
content: I have one, BUY IT!!!!!! You can also get a sleep base from Thermaltronics that will work with the RM-3E wand.

author: yo0
author_rank: Regular Contributor
timestamp: November 13, 2019, 11:17:16 pm
content: Thanks both of you!do you think the 700 (1xxx) chisel series are suitable for leaded solder and through hole soldering?Or other series is preferred? 600 perhaps?Best regards.Pio

author: gibbled
author_rank: Regular Contributor
timestamp: November 14, 2019, 10:43:16 pm
content: I use the 700 series tips for leaded solder with no problems. For through hole I like the sttc-136.

author: yo0
author_rank: Regular Contributor
timestamp: November 14, 2019, 11:17:10 pm
content: Thank you!!!Pio

author: yo0
author_rank: Regular Contributor
timestamp: November 15, 2019, 03:24:34 am
content: Already bought, the seller give me 2 extra tips brand new for a total of 8, thank you for your valuable comments and help.Best regards.Pio

author: GreyWoolfe
author_rank: Unknown
timestamp: November 16, 2019, 01:38:47 am
content: Kind of late to reply, but I use 600 series tips for leaded and I have 1 800 tip for lead free (I do very little lead free soldering).

author: Someone
author_rank: Super Contributor
timestamp: November 16, 2019, 04:06:07 am
content: 700 for everything that doesn't involve plastic
1300W Hot air stations - Page 1
Forum section: electronics / general

author: robertson.alan@gmail.com
author_rank: Contributor
timestamp: November 11, 2019, 07:54:26 pm
content: HIHas any one got any experience with below 1300W Hot air stations.YIHUA 993DMBeen around a while with sane handle as the Quick 861DW but 1300W, Three versions base version same price as Quick 861DWhttp://yihua-gz.com/Products_detail.asp?id=646&sortid=275Quick 861XNew Version with 1300W, different handle attachment style than 861DW. I can't see this listed on the Quick Global Website so is it a genuine quick product.https://www.aliexpress.com/item/33049890900.html?spm=a2g0o.productlist.0.0.247e7bbetV06Uo&algo_pvid=e088ac51-a4ba-4a35-aece-3cdda318792a&algo_expid=e088ac51-a4ba-4a35-aece-3cdda318792a-17&btsid=6c2e4630-cf4e-45d1-9c1f-7da21028f4a3&ws_ab_test=searchweb0_0,searchweb201602_6,searchweb201603_55Quick TR1300AMany selling sites say 1300W but it is actually 1000W same handle as 861DW

author: janoc
author_rank: Super Contributor
timestamp: November 11, 2019, 10:26:21 pm
content: Well, no experience with these but Yihua is bottom of the barrel stuff. You would be lucky if it is even wired correctly and won't electrocute you or blow up on the first power up ... That Quick is likely way better quality than anything Yihua has ever made, even if it is less powerful (if you really need 1300W, you can probably buy a paint stripping heat gun - those are around 1500-2000W).

author: robertson.alan@gmail.com
author_rank: Contributor
timestamp: November 12, 2019, 05:10:00 pm
content: HIThere is also this one 1200WBST-836https://www.aliexpress.com/item/32919021140.html?spm=a2g0o.productlist.0.0.5057525bS1BauB&algo_pvid=9ebc902e-d0ec-4d9b-9787-fd91590a2643&algo_expid=9ebc902e-d0ec-4d9b-9787-fd91590a2643-28&btsid=ef388377-ad87-4938-889d-0696d782f85d&ws_ab_test=searchweb0_0,searchweb201602_6,searchweb201603_55From what I have been reading you need the higher power for Mobile Phone repair these days, removes the BGA components faster with less chance of dammage to PVCB

author: janoc
author_rank: Super Contributor
timestamp: November 12, 2019, 05:26:17 pm
content: Quote from: robertson.alan@gmail.com on November 12, 2019, 05:10:00 pmPeople like Jessa Jones have certainly no issues with the 1000W original Quick hot air station for that job, repairing iPhones and iPads. She even explicitly recommends the original 861DW. Phone BGAs and PCBs are not *that* big to require huge amounts of heat. For complex things where the risk of damaging the board is high, you will want to use a preheater and not a jet engine sized heat gun.If you want to remove and replace GPUs and similarly sized BGAs, then a hot air station is the wrong tool for the job anyway and you will only butcher the board, regardless of wattage.The BST-836 has been reviewed (basically a cheaper Quick 861 knockoff with some quirks):
unidentified Vintage Mantis microscope - Page 1
Forum section: electronics / general

author: vivi-d
author_rank: Regular Contributor
timestamp: November 11, 2019, 02:01:29 pm
content: Hello, I would like to find lenses for this scope. Unfortunately, I could not find a model number for the scope, only a serial number.Does anybody know how to find the model number or how to find lenses? Thanks!

author: Pinkus
author_rank: Frequent Contributor
timestamp: November 11, 2019, 02:59:09 pm
content: it is the "old" Mantis Vision scope.Find attached the manual and service manual. It includes the available lenses.I would highly recommend to get the 6xSLWD lens (super long working distance) if possible as it doubles the working distance compared to the regular 6x lens.

author: vivi-d
author_rank: Regular Contributor
timestamp: November 11, 2019, 04:47:03 pm
content: Awesome! Thanks for your help!
Help me identify this strange tube - Page 1
Forum section: electronics / general

author: Calambres
author_rank: Frequent Contributor
timestamp: November 03, 2019, 11:29:12 am
content: I've recently received a batch of NOS tubes. Between them there was this weird tube I cannot identify.As you can see below, the only writing is 31878-D, hand written.Any clues?

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: November 03, 2019, 11:39:33 am
content: Looks like a discharge tube, used for UV/broadband or specific wavelengths depending on the gas fill and electrode materials. Typically used in spectrometers in chemical analysis gear, or maybe UV chart recorders.

author: Calambres
author_rank: Frequent Contributor
timestamp: November 03, 2019, 11:46:20 am
content: Quote from: mikeselectricstuff on November 03, 2019, 11:39:33 amThat makes sense knowing where it came from...Thanks, mate! It is of no use to me but good to know nonetheless.

author: Andy Watson
author_rank: Super Contributor
timestamp: November 03, 2019, 01:33:24 pm
content: I think Mike is on the money. With three wires coming from the base I think it might be a deuterium lamp - used for calibrating spectrometers and such like.

author: Calambres
author_rank: Frequent Contributor
timestamp: November 03, 2019, 06:53:32 pm
content: Yep, I thinkyou both are right. They're quite expensive too!Thanks!

author: PedroDaGr8
author_rank: Super Contributor
timestamp: November 07, 2019, 10:18:29 pm
content: Quote from: Andy Watson on November 03, 2019, 01:33:24 pmNot just for calibrating spectrometers, they are used as the UV source in almost every instrument where broad-spectrum UV sources are needed (i.e. UV-Vis Spectrophotometers, LC Absorbance detectors, Fluorimeters, etc.). As a chemist, I use at least one instrument with one of these every single day.The design lacking a base and using spade connectors indicates a far older model instrument. Modern instruments will use either a "molex style" or proprietary connector. They also normally include a molded or metal base to ensure optimal alignment of the bulb.See some examples of deuterium lamp types here:http://www.spectrolamps.com.au/deuterium-lamps/The most devious deuterium lamp I have seen is this one:The connector is not custom but highly expensive, there is also an inline DRM chip in the wires inside of the connector.

author: Calambres
author_rank: Frequent Contributor
timestamp: November 08, 2019, 06:45:52 am
content: Quote from: PedroDaGr8 on November 07, 2019, 10:18:29 pmAs a matter of fact, I inherited this tube from a relative who owned a small factory that made, as well as many other instruments, Colorimeters and Fluorimeters.