hybridfree/eevblog-posts huggingface dataset:
Affordable lab power supply, 1 channel, 0-60 Volts  - Page 1
Forum section: electronics / general

author: Ranayna
author_rank: Super Contributor
timestamp: July 22, 2021, 02:00:51 pm
content: Hi,while i own a Rigol DP832 with which i could couple the channels, it is just to fiddly and too loud to work with most of the time, especially when i do not need its relative precision.I also have a cheap 0-30 single channel supply that is just dead-easy to use, but i now have need for a 0-60 volt supply. Actually 0-50 would already be enough, but those seem uncommon.My current use-case requires less than 1A, but some additional power might be useful in the future.I know to avoid the absolute cheapy like this:https://www.amazon.de/-/en/MCH-K605DN-Precision-Supply-Adjustable-Stabilized/dp/B07PG8XT28But there are many supplies similar to that:https://www.amazon.de/-/en/Laboratory-Adjustable-Alligator-Overload-Protection/dp/B08GHN5HMNWith additional fine knobs:https://www.amazon.de/-/en/Laboratory-laboratory-adjustable-electronics-electroplating/dp/B081N2Q5LVWhat would be an acceptable device, if possible for a budget of around 100 Euro?Settings via coarse and fine knobs would be preferred over digital setup by far.No special requirements about precision.Semi-passive fan (or outright fan-less) would be great, otherwise a reasonable fan noise, less than the Rigol please.Reasonable build-quality with no obvious safety issues.There is a boatload of these supplies available on Amazon alone. Are there any that stand out in a positive sense?

author: Gregg
author_rank: Super Contributor
timestamp: July 22, 2021, 07:36:04 pm
content: Gophert makes some 60V switching power supplies within your budget. I have a couple of lower voltage Gophert power supplies and they are reliable; maybe not the smoothest output, but pretty good for the price.VoltLog did a video about one he has as well as a post on this forum.

author: Jeroen3
author_rank: Super Contributor
timestamp: July 22, 2021, 07:41:41 pm
content: Why not replace the fan in the rigol for a noctua one?https://www.eevblog.com/forum/testgear/dp832-fan-replacement-2018/Otherwise, reichelt sells peaktech, may be something, the 6227 perhaps?

author: Ranayna
author_rank: Super Contributor
timestamp: July 23, 2021, 06:32:15 am
content: I have seen the Peaktech 6227. That would be my *utmost* budget limit.But that frontpanel looks, well, odd. I would have no use for those 2 USB Slots, and they axed a second knob for those...I have now looked at some Gophert supplies. They are aparently fan-less, so that would be a plus in my opinion. That might even outweigh the single knob interface.But i am reluctant to order one of those directly from china.
Microscope Eyepiece Screws 1.6 x 3mm - Page 1
Forum section: electronics / general

author: nealz
author_rank: Unknown
timestamp: July 14, 2021, 10:55:40 pm
content: I just wanted to give back some information to the Forum.I have had a minor annoyance wit my Amscope SM-8TPZ Simul-Focal Microscope that I fixed today. I took some trial and Error and I didn't want anyone to go though the same issues I had.The Eyepieces do not have screws locking them into the scope. I was always felt like they would fall out.I found that 1.6mm x 3mm screws on amazon are a perfect fit.Hope this info helps someone in the future.Neal

author: highpower
author_rank: Regular Contributor
timestamp: July 15, 2021, 07:32:10 am
content: Good to know. Fortunately my scope came supplied with two thumbscrews from the factory. (SM-4NTPZ-144)Seems kind of silly that they don't include the screws with every scope though.

author: jpanhalt
author_rank: Super Contributor
timestamp: July 15, 2021, 09:42:14 am
content: My job required daily use of microscopes. I never felt the need for screws to hold the eyepieces. Besides, what are some downsides:1) Difficulty removing the eyepieces for cleaning or changing2) Wear particles falling onto the prism (or other internal optical components)
Unusual Ohm Clock - Page 1
Forum section: electronics / general

author: kultakala
author_rank: Regular Contributor
timestamp: July 07, 2021, 01:26:41 pm
content: Hi,Dont know if this is the correct sub forum...I noticed this project from john bradnam on hackster:https://www.hackster.io/john-bradnam/ohm-clock-a7beeaThere are so many cool clocks with LEDs and nixie tubes etc. but this one seems to be a new unusual idea.A clock showing the time with resistor color codes

author: themadhippy
author_rank: Super Contributor
timestamp: July 07, 2021, 05:08:02 pm
content: Unfortunately it cant mix brown or grey, for brown i guess a dark yellow but grey?

author: TimFox
author_rank: Super Contributor
timestamp: July 07, 2021, 05:13:57 pm
content: Not politically correct, since it does not comply with the ADA for vision-impaired users.

author: Gyro
author_rank: Super Contributor
timestamp: July 07, 2021, 05:36:01 pm
content: Quote from: themadhippy on July 07, 2021, 05:08:02 pmYes, brown is dark yellow, so I guess grey would have to be dark white. Maybe it needs some black light to keep the intensity even.

author: Skashkash
author_rank: Regular Contributor
timestamp: July 07, 2021, 08:02:18 pm
content: Brown; color is weird

author: ledtester
author_rank: Super Contributor
timestamp: July 08, 2021, 02:44:10 am
content: It would be cool if you could also use your multimeter to read the time.

author: themadhippy
author_rank: Super Contributor
timestamp: July 08, 2021, 02:49:38 pm
content: QuoteBut black light would just add ultra violet so you end up with a whiter white.

author: esepecesito
author_rank: Regular Contributor
timestamp: July 08, 2021, 03:02:17 pm
content: Quote from: Skashkash on July 07, 2021, 08:02:18 pmcame to post this video!

author: Neilm
author_rank: Super Contributor
timestamp: July 08, 2021, 06:33:10 pm
content: Quote from: ledtester on July 08, 2021, 02:44:10 amI had a multimeter like that many years ago. The clock was the best feature

author: johnboxall
author_rank: Unknown
timestamp: July 15, 2021, 01:37:15 am
content: Quote from: TimFox on July 07, 2021, 05:13:57 pmI'm colourblind, and think this clock is a great idea. No matter what you make, it won't be right for someone. So just enjoy making stuff.
KSGER 2.1S Solder station Capacitor question - Temp rating - Page 1
Forum section: electronics / general

author: Urshurak776
author_rank: Contributor
timestamp: July 13, 2021, 03:25:16 pm
content: Hi all,I have a spare power supply board and want to replace the three main caps. The 400V 82uf and the two 1000uf 35v caps. I have a Nichicon 400V 82uf cap at 105C (o issue with these) and two Rubycon caps at 1000uf 35v, however, these two are 85C caps. The ones on the board (even though junk caps) are rated at 105C. Could I use the 85C Rubycons in this unit?Thanks for any insight.

author: SteveyG
author_rank: Unknown
timestamp: July 13, 2021, 08:27:51 pm
content: It should be OK. I suspect the Rubycons will have a longer rated life than whatever was in circuit before anyway.

author: DavidAlfa
author_rank: Super Contributor
timestamp: July 13, 2021, 09:13:27 pm
content: I would worry if my station gets to 85ºC.The 105ºC versions are more rugged, but 85ºC caps shouldn't be a problem in this application.

author: Urshurak776
author_rank: Contributor
timestamp: July 13, 2021, 09:26:32 pm
content: Thanks everyone. I was going to use them but then someone on the bad caps forum said they would be hesitant to use them because they have no ESR rating and that is important in this power supply? The part number from Digikey is 35PK1000MEFCCE10X20.I still would think it would be better than the Cheng-X ones in the power supply currently.....My current KSGER 2.1S has these in them:https://www.ebay.com/itm/283799940916(JCCON (Sanyo) 1000uf 35V 105C Low ESR.) I have a few extra. Maybe stick with these? The stock is those Cheng-X ones.

author: Urshurak776
author_rank: Contributor
timestamp: July 14, 2021, 12:24:37 pm
content: Turns out Panasonic makes an FS series that has all the right specs. I may grab some and check them out. Thanks all for your time.

author: mastershake
author_rank: Frequent Contributor
timestamp: July 14, 2021, 03:59:25 pm
content: i used the nichi's in mine to replace the couple bad ones i had. then i went ahead and just replaced all of the ones i had in the ksger's (i have a 5 of them in use in different places where i dont care much if one gets damaged or stolen etc where i would be very upset if one of my more expensive stations were) 105 is prob overkill but why not lol. i did however solder in a few ruby's for a friend when his station had them go bad (ksger 2.1) and he has had it in use for a couple years now with no issues at all those were 85C. i did the heatsink mod on his also and grounded it.
The LED light cannot be seen on a quality logitech optical wireless mouse - Page 1
Forum section: electronics / general

author: abdulbadii
author_rank: Frequent Contributor
timestamp: July 08, 2021, 08:56:36 pm
content: How come the LED light cannot be seen on the quality Logitech optical wireless mouse, but brightly seen on a (China) low quality one?

author: Gyro
author_rank: Super Contributor
timestamp: July 08, 2021, 09:37:47 pm
content: IR LED?

author: tooki
author_rank: Super Contributor
timestamp: July 11, 2021, 06:13:46 pm
content: Quote from: abdulbadii on July 08, 2021, 08:56:36 pmThe higher end Logitech models these days use infrared lasers, not visible LEDs. You can usually see it on a digital camera though.
indent crimper settings/compatability with solder BNC center pin - Page 1
Forum section: electronics / general

author: coppercone2
author_rank: Super Contributor
timestamp: July 08, 2021, 12:23:51 am
content: I am using the 31-202 connector from amphenolhttps://datasheet.octopart.com/031-315-RFX-Amphenol-RF-datasheet-5670.pdfI have been soldering them, but I am wondering if you can do a 4 indent crimp on this connector. I have the tool, and it has a setting scale, but usually they tell you what to set it to for the crimp you buy and they also sell go-no go gauges to make sure you have the correct setting for crimps.. anyway this information is not available, is it possible to figure out.. or even compatible?I can do a few experiments but they are wasteful since if I wreck the pin I need to throw everything out, I would like to get it right close to the first time if its possibleI was just gonna set it to the wire gauge and see if it works but I am not sure if maybe the barrel is too thick for a solder compatible contact.. its for 20 awg stranded rg400

author: coppercone2
author_rank: Super Contributor
timestamp: July 08, 2021, 03:07:46 am
content: and they also want dies for the crimp connectors, I looked em up, it does not appear to be a indent crimper. Why is that? I would assume a barrel is compatible with both types of crimps but does it depend some how on thickness?I bought some 4 indent crimp connectors and they look pretty similar
Microscope Field of View Different on Camera vs Eyepiece - Page 1
Forum section: electronics / general

author: nealz
author_rank: Unknown
timestamp: July 11, 2021, 04:30:29 pm
content: I have a Amscope SM-8TPZ Simul-Focal Microscope. I have been happy with the Microscope but no so much with the Camera. I decided to upgrade to a HY-5299 Microscope Camera.Hayear Camera is working fine but the Field of View (FOV) on Camera is half 40mm vs 70mm though eyepieces.I have a FMA050 .5 reduction lens on the Camera.Does anyone have any suggestions for getting the Camera FOV similar to Eypieces? How do you have your camera mounted to your Microscope?I'd be interesting in hearing about you Microscope setups and how your FOV compare.

author: Hamelec
author_rank: Regular Contributor
timestamp: July 11, 2021, 04:41:00 pm
content: You have some possibilities:- buy a reduction lense with ~ .3 magnification(something like that:https://www.ebay.com/itm/173822595854but i dont know anything about picture quality)- buy a camera with a sensor size of 1.75x of the actual size

author: SteveyG
author_rank: Unknown
timestamp: July 11, 2021, 06:10:17 pm
content: I did a few videos on this topic, but definitely get rid of the terrible Amscope adapters.This one is probably most relevant, but there's also some learnings in videos #113, #093 and #078The Eakins adapters will let you match the FOV.Camera Adaptor for Microscopes:https://bit.ly/2KBZQMQYou may need a 5mm C to CS adapter kit from ebay, depending on the camera. They're usually about $1

author: nealz
author_rank: Unknown
timestamp: July 11, 2021, 07:43:13 pm
content: Thanks for the info @hamelec and @steveyg.Does this look like the same adapter?https://www.amazon.com/Microscope-Adapter-Trinocular-Interface-Adapters/dp/B088C19QV6/ref=sr_1_9?dchild=1&keywords=0.35+microscope+c-mount&qid=1626032830&sr=8-9I'm in USA so Amazon in the cheapest due to shipping.Neal

author: SteveyG
author_rank: Unknown
timestamp: July 11, 2021, 10:19:17 pm
content: Possibly, but double check the fitting on the microscope, there's two different sizes for the camera port! Yours looks like it could be the smaller type

author: nealz
author_rank: Unknown
timestamp: July 11, 2021, 10:26:14 pm
content: Checked Measurements with Calipers. Looks good.Thanks for all your hard work and sharing your knowledge!Neal

author: nealz
author_rank: Unknown
timestamp: July 14, 2021, 12:32:00 am
content: @steveyg I just installed the new camera adapter and the Quality and Clarity is amazing! FOV is really close.Thanks again!

author: SteveyG
author_rank: Unknown
timestamp: July 14, 2021, 09:36:59 am
content: Great, glad it worked!
EFORE SR 927950 DC Supply - Page 1
Forum section: electronics / general

author: kaadam
author_rank: Contributor
timestamp: August 04, 2015, 01:49:00 pm
content: Hi!Has anyone any documentation (schematics, manual, etc.) about the EFORE SR 927950 DC Supply? You can find pictrues here:http://www.tdm-electronics.com/katalog3/v/ZASILACZE/Zasilacz+54+V+28+A+EFORE+SR+927950/We use it as battery charger, one unit has borken, and i want to repair it. I can't find any reliable documentation about it. So if you have any, can you share with me?Thanks!

author: vehiculeselectriques
author_rank: Contributor
timestamp: July 05, 2021, 12:54:01 pm
content: Hello,i have 2 of them and impossibe to find manual data, seems very rare material,do you find any info since 2015 ?
Weller ec2001 rebuild - Page 1
Forum section: electronics / general

author: prosodyspeaks
author_rank: Newbie
timestamp: July 03, 2021, 09:19:00 pm
content: hii have an ooooold weller ec2000 with ec2001 pencil, it served me well for many years, but i broke the heater assembly trying to remove a tip.i got a replacement heater, ec234, expecting it to plug right in, but discovered i needed a new barrel-nut assembly, Ba60, so i got that too. then i found that the new heater has 2 fixing screws while the old one - and thus my handle - has 3. so i bought a new handle, tc218. now i find that the new heater and tc218 handle have what seem to be push-fit pins, while my ec2001 has a ceramic board and simple solder connections.how do i connect my old sensor assembly (which is the most costly part to replace) with the new heater and handle? are there some kind of terminals i can put on the bare wires to mate with the pins of the heater ec234 inside the black plastic housing of the handle tc218? i attached a picture of the replacement cord assembly ec233 i can see the terminals on 3 of the wires but have no idea how to source them?!thanks for any help/advice
Station with a pump on budget and compatbile with JBC tips  - Page 1
Forum section: electronics / general

author: dinth
author_rank: Contributor
timestamp: July 01, 2021, 08:58:31 am
content: Hi. Im on a very limited budget for my electronics hobby and limited space on my desk, but i still appreciate using some good equipment when soldering.I used to have a soldering station with additional hot air from Aliexpress, but since the quality was not the best and it was taking a lot of space on my desk, a while ago i have decided to invest some money and - since i dont do a lot of large smd chips, ditch the hot air - and instead buy the following:* Pinecil for soldering away from my desk* T245 tip + components for building an Unisolder.This sounded like a best "value for money" move i can make - not loosing much, gaining a lot (space on my desk, quality irons which heat up quickly and maintain the temperature + mobility) and it only stretched my budget for soldering tools by a bit.I have already done all of that, but as soon as i sold the hot air i have realized that I'm not longer able to desolder even a simple 8 pin through-hole resistor matrix with the tools I've got. I havent thought about it earlier, but I do quite a lot of desoldering, so this is a major problem for me and i dont have money within my soldering equipment budget to fix it. Obviously, im aware that i will need to spend some extra money, but i want to find an optimal solution to get a quality desoldering gun, but saving money and desk space.The perfect solution would be a JCB station (so i can still use T245 handle and tips which i bought) with desoldering pump but for around £100 used (something like Hakko 470/808 but from JBC), but i cannot find anything from JCB with a build in pump that cheap. Are there any other brand stations or opensource projects which work with T245s and support desoldering pumps?

author: wickated
author_rank: Frequent Contributor
timestamp: July 01, 2021, 10:12:44 am
content: diy this onehttps://aliexpress.ru/item/1005002382830287.html

author: dinth
author_rank: Contributor
timestamp: July 01, 2021, 11:40:14 am
content: Sorry im somewhat confused about what is that (and the english description on Aliexpress is quite bad). Is that a whole soldering iron controller? Why is it so small? And can it be wired to a desoldering gun?

author: wickated
author_rank: Frequent Contributor
timestamp: July 01, 2021, 12:29:59 pm
content: it is controller board compatible with t12/jbc/fm2024 and additional stackig board with pump/valve controller. if u stack both and also by fm2024, and pump motor u can wire this all in allin1 combo. noone said it would be easy in any way. but cheap yeah.
solid machined aligator clips? - Page 1
Forum section: electronics / general

author: coppercone2
author_rank: Super Contributor
timestamp: June 29, 2021, 06:17:27 am
content: I know they exist because I have one that I got on ebay for an oscilloscope probe but I want like regular alligator clips but not bent out of stamping but solid. they both have their merits because the stamped ones are captive but still

author: bob91343
author_rank: Super Contributor
timestamp: June 29, 2021, 06:19:28 pm
content: There are plastic ones also.

author: TimFox
author_rank: Super Contributor
timestamp: June 29, 2021, 06:24:24 pm
content: I have seen solid parts in Kelvin clips on eBay.
Who Made This? - Page 1
Forum section: electronics / general

author: bobcat2000
author_rank: Regular Contributor
timestamp: June 23, 2021, 05:21:59 am
content: I am still shopping for a replacement soldering iron.This one is shiny and is less than 40 clams.https://www.amazon.com/s?k=B08MTTXFW6&ref=nb_sb_nossI am wondering who made this. Yihua? I am concerned about I cannot find the replacement handle, tips, or any spare part.

author: bob91343
author_rank: Super Contributor
timestamp: June 23, 2021, 05:31:46 am
content: Looks like Sealody. Or Yihua. Looks like a bargain.

author: wickated
author_rank: Frequent Contributor
timestamp: June 23, 2021, 05:55:36 am
content: just an usual 936 hakko handle, 900m tips

author: bobcat2000
author_rank: Regular Contributor
timestamp: June 23, 2021, 06:22:28 am
content: Found it.The unit is $40.They want another $40 for just the handle.Some reviews say none of the replacement tips fits the handle. (maybe fake reviews).I don't find any shiny one like this from Yihua. But Yihua only wants around $20 for the replacement handle. Much cheaper.So, this Sealody SSA60 is a throw-away item.https://www.amazon.com/Soldering-Iron-Handle-Station-SSA60/dp/B08TV4HRYX/ref=sr_1_4?dchild=1&m=A7LMAL3UOCLC7&qid=1624428699&refinements=p_4%3ASEALODY&s=merchant-items&sr=1-4

author: bobcat2000
author_rank: Regular Contributor
timestamp: June 23, 2021, 06:41:21 am
content: I found who made it.It is a Bakon BK60. There is no info though.Do they make their own? or do they buy from the others?Are parts interchangeable from the other brands?

author: bobcat2000
author_rank: Regular Contributor
timestamp: June 23, 2021, 05:12:10 pm
content: Look like they have 2 models. BK60 and BK90. The Bakon uses different tips. The reviews say 900M tips don't fit.

author: Shock
author_rank: Super Contributor
timestamp: June 23, 2021, 07:19:15 pm
content: Looks like just another Hakko 936 knockoff. A 907 style iron with 900L sized sleeve and tip. The 900M/T18 are smaller tips. But since the heater is non standard it might not fit the smaller tips anyway.
Any good dealer in EU for Vision Engineering mantis elite parts - Page 1
Forum section: electronics / general

author: Tooms
author_rank: Unknown
timestamp: June 22, 2021, 07:22:38 pm
content: HiI got my self an Vision Engineering Mantis Elite V2 and need to buy some parts for it like lens protector, so anyone there can recommend some good dealer in EU Vision Engineering Mantis Elite stuff ?ThanksThomas
1/2/3/4 ft US equipment power cord sets. - Page 1
Forum section: electronics / general

author: WattsThat
author_rank: Frequent Contributor
timestamp: July 04, 2021, 12:11:11 am
content: Wanted to clean up the mess of cords behind all my test gear and found these for under $2 each.Yeah, so they’re only 18 ga but since it’s not audio gear, they should be finehttps://www.monoprice.com/product?p_id=5278#features

author: bob91343
author_rank: Super Contributor
timestamp: July 04, 2021, 02:09:52 am
content: Interesting that the prices seem unrelated to the length. And the shipping probably kills it anyway.

author: highpower
author_rank: Regular Contributor
timestamp: July 06, 2021, 12:54:49 am
content: I just looked at an 8ft cable and they estimated shipping at $6.48 to the Midwest. The main page shows free shipping to the continental US for orders over $39.
Good single or double arm helping hands that clamp on desk? - Page 1
Forum section: electronics / general

author: Humanoid
author_rank: Regular Contributor
timestamp: May 06, 2021, 06:21:53 am
content: The more I work on stuff, the more I find I need some helping hands, especially when I have a large piece and a small piece that need to connect and I'm lacking a third appendage.Most helping hands I see look cheap, too flimsy, too rigid, or look like an octopus. I need something simple and effective.Any suggestions for a single arm or double arm setup that can clamp to side of a desk, easily be articulated, yet strong enough to not move once set? Would prefer if they don't cost a fortune. One arm should be fine, but two is okay. This would be for holding small items, not cinderblocks.

author: redg
author_rank: Regular Contributor
timestamp: May 07, 2021, 01:37:25 am
content: The term "helping hands" seems fairly specific to the soldering crowd. What you're looking for is known more widely as an articulating arm. Maybe have a search for that term onB&H Photo'ssite.Lee Valley Toolsmight have something suitable as well. There's alsoPanaVise, whose products are apparently popular among people who solder.

author: Fulmir
author_rank: Contributor
timestamp: May 19, 2021, 05:46:16 pm
content: There's various options on Amazon if you search for "third hand clamp" or "helping hand clamp". I've personally got a non-clamp on setup and I'd recommend going for something with the same kind of arm:https://smile.amazon.com/Soldering-NEWACALOX-Flexible-Assembly-Modeling/dp/B08MQM3ZS7/Those things are pretty solid and hold position well enough, and if you get one that doesn't for some reason you can return it.They will move a *little* if you bump them, but most of mine only move like 5-10mm at most and that's just flex in the materials. The resting point doesn't easily change on most of them.If you need something more steady or larger than that then you may want to look at rigging something up with some lamp/webcam arms and attaching clips to the ends, or going for a more expensive options.

author: wickated
author_rank: Frequent Contributor
timestamp: May 19, 2021, 07:23:36 pm
content: there are 2 types of holder you need to use.1) heavy plate with vice-clamps2) crocko clamps for everything else without any useless attachemnts with stiff nut holders, not "octopus". i use this one and also clamp it to desk edge

author: Old Printer
author_rank: Frequent Contributor
timestamp: June 13, 2021, 01:01:34 am
content: I recently bought one of these on Amazon after looking at them for years. The brand is QuadHands, and they come in various sizes and number of “hands”. Not cheap, but very well made. The base plate is nice and heavy, and the arms attach by super strong magnets so you can arrange them how you prefer.
JBC peripherals connector pinout - Page 1
Forum section: electronics / general

author: ckambiselis
author_rank: Regular Contributor
timestamp: March 02, 2019, 05:36:18 pm
content: Hi,I'm looking to buy a JBC DDE system and was astounded by the fume extractor switch unit price (400e), for what it actually is, a relay that turns a passthrough AC plug on and off. So I was wondering if someone has looked in to the peripherals connector, is it just a couple of HIGH/LOW outputs like on the Wellers or is there any kind of data going through, since in the menu of the main unit you select the type of accessory and you can daisy chain them.ThanksOscar

author: Didgitalpunk
author_rank: Contributor
timestamp: June 12, 2021, 02:31:06 pm
content: bit late to the party, but the peripherals are definitely not just switches. MSE-A has a PIC inside, and it definitely talks to the DDE station. (source: I own both)
Soldering iron and hot tweezers thermocouple type  - Page 1
Forum section: electronics / general

author: szafranski
author_rank: Contributor
timestamp: July 23, 2020, 05:01:42 pm
content: Hello,does anyone know what type of thermocouple is implemented in:1.) Zhaoxin 936D soldering iron2.) Gordak 902 hoting tweezers?I would like to use custom controler for those so I have to know.Thanks!

author: firepower
author_rank: Regular Contributor
timestamp: June 09, 2021, 07:10:45 pm
content: http://kazus.ru/forums/showthread.php?t=116545
Tweezers.. regular cold ones... non lcr.. for picking things up off the table - Page 1
Forum section: electronics / general

author: I_Saldana
author_rank: Contributor
timestamp: May 28, 2021, 08:59:11 am
content: My recent experience with stocking up on tweezers from all over the world.Erem, Erem/weller budget, hakko, Engineer brand titanium, chinese "titanium", chinese cheap ones...Advertised : antistatic, not magnetic, acid resistant, heat resistant..Actually cares about: Grabs the ones that open widest each time.

author: wickated
author_rank: Frequent Contributor
timestamp: May 28, 2021, 06:06:44 pm
content: Quote from: I_Saldana on May 28, 2021, 08:59:11 amceramic ?

author: I_Saldana
author_rank: Contributor
timestamp: May 28, 2021, 06:47:03 pm
content: 1 pair , sure. it's sitting pretty on the side of the jar.My point being, how wide they open is my main criterium yet it's not mentioned in advertising. I saw people mention it in some reviews. Tweezer reviews are few.

author: rvalente
author_rank: Frequent Contributor
timestamp: June 01, 2021, 09:52:33 pm
content: My dentist gave me a few old dental tools in the past. That stainless alloy is soooooooo freaking good! Get yourself a explorer to scrap pcbs and stuff, its really good and useful.

author: Whales
author_rank: Super Contributor
timestamp: June 02, 2021, 02:06:52 am
content: Quote from: rvalente on June 01, 2021, 09:52:33 pmThis. I've been using ex-medical ones for years (from a friend who has a friend in eye surgery). They throw lots out, but they're really good quality.Just don't accept them if they have not been cleaned

author: I_Saldana
author_rank: Contributor
timestamp: June 02, 2021, 02:37:00 pm
content: Quote from: Whales on June 02, 2021, 02:06:52 amThis is genius. I'm seeing my proctologist next week, Maybe he can hook me up with gear to fix my desolder gun suction issues.Seriously though.. My dentist already gave me hollow blunt needles. I'll ask her if she can buy a few tweezers for me with her next order. They'll be a good addition. erm... do they "open wide"?

author: Doctorandus_P
author_rank: Super Contributor
timestamp: June 03, 2021, 11:16:02 am
content: Also get a few hemostats.

author: dinth
author_rank: Contributor
timestamp: June 10, 2021, 08:10:52 pm
content: Ive been almost exclusively using Xytronic (not to be mistaken with X-tronic from Aliexpress) tweezers for almost 20 years now and i really like them. Sure probably you can find better ones from CK or another "big" brand, but CK is five times more expensive than Xytronic.
Magnetic Materials Tester - Page 1
Forum section: electronics / general

author: ornea
author_rank: Unknown
timestamp: June 03, 2021, 02:50:50 am
content: Picked this up from the local hackerspace hackme bench.Anyone any ideas how to use it or what other tasks it might be useful for.

author: coppercone2
author_rank: Super Contributor
timestamp: June 03, 2021, 02:57:43 am
content: you characterize a magnetic material inside of some fixture that connects to the device, its likely meant to measure transmission parameters across frequency and temperature and field strengthprobobly specially made to catagorize magnetic mixtures from someones manufacturing process (they have a prototyping plant to make a unique composition)

author: Berni
author_rank: Super Contributor
timestamp: June 03, 2021, 07:19:40 am
content: It seams like it can apply a AC current at a selectable frequency while also interfacing with a thermocouple.Since it has a heater switch too i would assume that this connects to some test fixture that heats a sample while measuring its magnetic properties using a induction coil. Likely used for finding the curie point of a alloy sample.So not really all that usefull, but you can tear it apart for some nice pots, switches, knobs and a nice transformer.

author: ornea
author_rank: Unknown
timestamp: June 03, 2021, 07:29:51 am
content: @Berni, have since been considering turning it into a T12 soldering iron station. As you say its got pots, thermocouple J K amplifier, heater circuit, PSU and transformer with many taps. Maybe jam a ESP8266 in there to read the output of the thermocouple and control the heater. Just not sure how to read the pot position as only a single ADC,

author: coppercone2
author_rank: Super Contributor
timestamp: June 03, 2021, 07:50:24 am
content: i think its curie point now

author: ornea
author_rank: Unknown
timestamp: June 03, 2021, 08:01:09 am
content: @coppercone2 curie point checker, that sounds very plausible. It looks like it came from a place of educat'n
Need feedback from Hakko FR-301 users - Page 1
Forum section: electronics / general

author: zero9
author_rank: Contributor
timestamp: June 01, 2021, 10:49:44 am
content: Few days ago had to remove ram sockets from some server pcb.As you all know it is a bit struggle to remove them, remove all solder from vias.Found out Hakko FR-301https://www.hakko.com/english/products/hakko_fr301.htmlWill it be enough power, heat capacity to remove parts like RAM sockets etc from boards which have bigger GND polygons and many layers?I know FR-400, but it is out of my budget.Also, if there are some other suggestions under 1000$ mark, let me know.

author: bateau020
author_rank: Frequent Contributor
timestamp: June 01, 2021, 02:19:49 pm
content: Personally never had problems with it. I might be giving advice you already know, but make sure you make circular movements around the pin you want to desolder, and use a nozzle that is adapted to the job. For DIP sockets the standard nozzle is OK. For connectors you often need an oval/elongated nozzle.edit: We're talking about through hole, right? For SMD this tool will be of very limited use.

author: wickated
author_rank: Frequent Contributor
timestamp: June 01, 2021, 03:01:58 pm
content: preheater table would be much more usefull then this

author: zero9
author_rank: Contributor
timestamp: June 01, 2021, 03:59:57 pm
content: Quote from: bateau020 on June 01, 2021, 02:19:49 pmthanks for Your input. Have You used it for power hungry PCBs as i mentioned above?Yes, through hole!Quote from: wickated on June 01, 2021, 03:01:58 pmnot an option here - that PCB was huge, not a regular ATX. But that is not the topic.

author: bateau020
author_rank: Frequent Contributor
timestamp: June 01, 2021, 04:04:33 pm
content: well, sometimes you need to heat it a little longer and "help" by adding new non-lead free solder (to lower the melting temperature and help it flow), but I've never had a problem. Never desoldered large heatsinks though....

author: thm_w
author_rank: Super Contributor
timestamp: June 01, 2021, 09:34:12 pm
content: What iron do you have, and when you try to heat up the pin with that iron will it melt easily or not?Its listed as 110W, including the pump, so it may be about the same as a typical decent iron, or slightly better.If the pin is tied to multiple internal layers, it just might not be possible without preheating.If you don't care about the socket surviving, that makes your life a bit easier, you can crank the temperature up.

author: bateau020
author_rank: Frequent Contributor
timestamp: June 02, 2021, 06:01:52 am
content: Having found no detailed specs, and in order to take all ambiguity away, I decided to measure it.When at temperature, pump off, it draws 110W when heating. Pump takes 10-15W on top of that. (When cold, the heater draws about 250W, but that is irrelevant)
best multimeter - Page 1
Forum section: electronics / general

author: harrysmith
author_rank: Contributor
timestamp: May 07, 2021, 12:13:25 am
content: Hi everyone.what are the multimeter at the good quality price of the moment. with an accuracy satisfied in measurement

author: pqass
author_rank: Super Contributor
timestamp: May 07, 2021, 12:42:25 am
content: There are soooo many multimeters around. It will depend on what's important to you.See the multimeter speadsheet here:https://www.eevblog.com/forum/testgear/multimeter-spreadsheet/FYI: The best one is:https://www.keysight.com/ca/en/product/3458A/digital-multimeter-8-5-digit.html

author: BlackICE
author_rank: Regular Contributor
timestamp: May 07, 2021, 10:36:13 am
content: The best multimeter is certainly out of my price range and I would never have a need for that kind of precision.

author: Teti
author_rank: Regular Contributor
timestamp: May 15, 2021, 08:46:21 pm
content: To be honest I was always craving for some nice 6.5 digits bench DMM, but in the end budget went down the drain and I've end up with cheap 4.5 bench DMM and hey it works just fine and does all I need.I need accuracy for 2 digits after decimal point.

author: coromonadalix
author_rank: Super Contributor
timestamp: May 21, 2021, 05:17:46 am
content: check the eevblog meters list ??https://www.eevblog.com/forum/testgear/multimeter-spreadsheet/

author: nightfire
author_rank: Frequent Contributor
timestamp: May 24, 2021, 01:09:25 am
content: It is like with cars- there is no best car at all- it all depends on the usage scenario.Thats like stating that a Rolls-Royce is the best car in the world- unless you drive through rough terrain where a Landrover or Mercedes G-Model or Unimog will be the best you can get for your money...So question is: What is your priority? Do you want to have ultimate precision, ruggedized portability in an industrial environment, or maybe some good quality affordable device for hobby use?

author: Gyro
author_rank: Super Contributor
timestamp: May 24, 2021, 09:12:31 pm
content: Don't bother, the OP rarely comes back to his threads.

author: rvalente
author_rank: Frequent Contributor
timestamp: June 01, 2021, 09:46:14 pm
content: Well, certainly there is no best oneThere are budget meters, electrician meters, meters focused in hvac, automotive and so on..Brymens usually are good bang for buck, in quality and functionality. Take a look at the eevblog ones.For gen purpose in electronics, anengs seems to be very usable.Vintage meters you could check the fluke 8000s, like the super common 8020, 8024 and 8060I often suggest the fluke 17b, for friends as is usually found in the local market, with warranty, invoice and good enough probes.Someone would say to you the 87V is the "best", os a good and reliable meter but, expensive.Well, take a look on these suggestions

author: nigelwright7557
author_rank: Frequent Contributor
timestamp: June 01, 2021, 09:54:21 pm
content: I just use a sub £10 multi meter off Ebay.Works fine for me.Same goes for soldering iron, I paid about £10 for mine, had it many years and rarely needs a new bit.
Soldering Station: X-Tronic 4040-PRO-X Platinum - Brand Known? - Page 1
Forum section: electronics / general

author: DW1961
author_rank: Frequent Contributor
timestamp: May 28, 2021, 01:24:08 am
content: I have another chance at some electronics equipment from a program I'm in for Amazon. This time a soldering rework station. I already have two of the transformer (heavy) type. One is a digital readout and the other is nearly the same, but with only a dial indicator.They are all transformer type.I have these:This just a no name but works fine, but no digital temp read out.I don't like that because it's hard to find the last place I was on. I'll never use it except as a backup iron (50 watt):https://www.amazon.com/gp/product/B08868BVRT/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1And this one, which works really well so far, but has been discontinued by the maker for a newer model. This does have the digital read out (55 watts):https://sealody.com/product/digital-soldering-station-with-pure-aluminum-soldering-standIs the X-Tronic brand soldering stations respected, or just another Chinese no name brand (which doesn't mean it's bad, of course)?X-Tronic 4040-PRO-X • Platinum Soldering ad Rework Station 75 watt ($230.00):https://www.amazon.com/dp/B08RCBPGSYThen a Fairly well known Chinese brand Soldering and Rework Station, no solder side watt given, ($120.00):YIHUA 995D+ 2 in 1 Hot Air Rework and Soldering Iron Stationhttps://www.amazon.com/dp/B0919MS875And then this soldering station, which is a no name, but at least it's marketed well, 60 watt ($50.00):https://www.amazon.com/dp/B08K8Z3L8XThey all take the Hakko 900 series tips, which I own.I'm just thinking into the future. Since I already have two solder stations, and at least one I like, the Sealody above, I'm not sure I need another one. I would consider it if I knew it was a step up from what I have and would last virtually forever. Then I'd know I'd never have to by another one. Al of them are more powerful than the ones I have now.Any suggestions or ideas would be great.

author: thm_w
author_rank: Super Contributor
timestamp: May 28, 2021, 09:18:53 pm
content: Don't get a 2-in-1.If you can find a Quick/Aten/BST863 or similar thats been well reviewed on here go for that instead.https://www.eevblog.com/forum/reviews/best-bst-863-hot-air-station/25/

author: DW1961
author_rank: Frequent Contributor
timestamp: May 28, 2021, 11:20:53 pm
content: Quote from: thm_w on May 28, 2021, 09:18:53 pmThese are free items. They come and go. The Xtronics is already gone and no longer available to me.I'd rather have components too, not the 2 in 1. From now on, I'll disregard the 2 in 1 models.

author: DW1961
author_rank: Frequent Contributor
timestamp: May 30, 2021, 02:24:16 am
content: Quote from: thm_w on May 28, 2021, 09:18:53 pmThis just popped up for the program. It's the X-tronics brand, heat gun only.https://www.amazon.com/dp/B093QF3ZK2
Found a UK workbench in the US. Can someone help me find a specs sheet? - Page 1
Forum section: electronics / general

author: Fulmir
author_rank: Contributor
timestamp: May 17, 2021, 08:25:40 pm
content: I found a weird Workbench/Workstation. It's very clearly from the UK, and probably from the early 2000s, but it's in the United States. I'm trying to find a specs sheet or any additional info on the thing but so far I'm coming up completely empty, which is pretty weird.Pictures are attached below. I didn't think to grab a shot of it but it has what are pretty clearly two ESD studs on the two right corners of the main work surface. It also appears to be adjustable by pulling up on the front of the bench and sliding it up and down, though I'm not positive that's how it works. Does anyone have any info on what this thing is, who made it, and what the specs are?Pictures of the bench in question:https://imgur.com/a/CZce6Os
ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown - Page 1
Forum section: electronics / general

author: TheEPROM9
author_rank: Frequent Contributor
timestamp: May 08, 2021, 04:14:29 pm
content: I have also included dumps from the EPROM's

author: bsdphk
author_rank: Regular Contributor
timestamp: May 09, 2021, 05:52:48 pm
content: The CDP1802 is a wonderful chip.It has 16 registers 16 bit each, and then it has a 4 bit register which tells you which register is the program counter right now

author: bsdphk
author_rank: Regular Contributor
timestamp: May 09, 2021, 08:45:30 pm
content: I have added the proms as an example to my PyReveng3 archaeology disassembler:https://github.com/bsdphk/PyReveng3/tree/master/examples/L1A1_Fuze_Setter

author: TheEPROM9
author_rank: Frequent Contributor
timestamp: May 10, 2021, 09:15:56 am
content: Nice & I see it's Python. I will have a play with that one.

author: TheEPROM9
author_rank: Frequent Contributor
timestamp: May 10, 2021, 09:17:41 am
content: Quote from: bsdphk on May 09, 2021, 05:52:48 pmI am discovering these have a bit of a following in the retro computer comuity. I wonder if I should pillage it from the device & use it in a project. Seems a little mnore advanced than the usual 8-bit CPU's like the Z80 or the 6502.

author: coppercone2
author_rank: Super Contributor
timestamp: May 23, 2021, 08:18:57 am
content: i like how they drew a little moon and sun on it. i wonder if the version for nuclear rounds has something like this
Soldering station to replace a Draper 40w which has died - Page 1
Forum section: electronics / general

author: Bebop
author_rank: Newbie
timestamp: May 11, 2021, 11:19:49 am
content: Hi all,Sorry I know that this isn't exactly the most original post and I have read through some previous threads about soldering irons, but I've had this Draper 40W soldering stationhttps://www.drapertools.com/product/61478/Soldering-Station-(40W)for about 2.5 years, only really been using it 18 months and it's stopped working.I'd like to replace this one with a budget of about £50. I've taken a look on ebay but it's mainly new clones and the second hand ones are mainly high end ones out of my price range.I have been looking at various different options but I'm trying to work out what I should be looking for, I understand controlable temperature rather than just controllable wattage is better.I'd appreciate any suggestions of budget solder stations which would be a good shout and any thoughts on what features/specs I should be focusing on.Thanks!
Quick 861DW build quality - Page 1
Forum section: electronics / general

author: CliffClavin
author_rank: Newbie
timestamp: May 06, 2021, 02:26:37 pm
content: Hello,I was looking for a Hot Air Soldering station. I've chose the Quick 861DW because of their seemlingy good build quality and their good components (compared with the Atten ST862, which was my other option).Today I received my item and it had a two scratches on one side and what I dislike even more, it was not possible to open the station, because 2 of the 8 housing screws were overturned and therefore it was impossible to unscrew them.So, dear Quick 861DW owners, did you make the same expierence?Kind regardsCliffClavin

author: Ground_Loop
author_rank: Frequent Contributor
timestamp: May 11, 2021, 10:53:32 am
content: I got one a couple months ago. No scratches. I've seen the tear down and had no interest in taking it apart, so can't speak to the screws. I use it and it works. This being my only experience with hot air systems, I have nothing to compare to. At this point I'm happy with it.
RTD-to-Digital Converter - Page 1
Forum section: electronics / general

author: harrysmith
author_rank: Contributor
timestamp: May 31, 2021, 08:05:52 pm
content: Hi everyone, I have a small project to realize. and I want to do it with the MAX31865 and linked it with a temperature sensor. and I want to know if any one already realize it to have more of his experience THANKS

author: ebclr
author_rank: Super Contributor
timestamp: June 01, 2021, 06:18:15 am
content: https://learn.adafruit.com/adafruit-max31865-rtd-pt100-amplifier/arduino-code

author: jpanhalt
author_rank: Super Contributor
timestamp: June 01, 2021, 06:42:17 am
content: You have an identical thread here:https://www.eevblog.com/forum/projects/max31865-rtd-to-digital-converter/msg3580356/#msg3580356Multiple threads don't help.
Netatmo Weatherstations - do you have one? - Page 1
Forum section: electronics / general

author: kaz911
author_rank: Super Contributor
timestamp: May 05, 2021, 09:05:38 am
content: Hi,I have an interesting issue with my Netatmo Weather-station. Specifically the latest generation (V3) that has been modified to support Apple HomeKit.I have a few Netatmo's weather stations dotted around with family and outbuildings - but the latest V3 seem to have an issue - which the other ones do not.I think something is either wrong with mine specifically - or in general. So I would like to figure out if it is a general issue - so please chime in if you have Netatmo (especially the V3 hardware)The Netatmo weather is supposed to be able to measure noise from 35-120dB. And my V1's and V2's do. But my V3 does not - at least not when it is connected to Netatmo's power supply (and a few other USB power supplies)But when I power it from a battery bank - it DOES follow the specifications and goes to about 36dB as minimum. Else it stays around 42-43 dB when mains powered. It will occasionally dip into the low 40's but only if my house is electrically very quiet... (Boiler not running) - the dB measurements seems to be lifted by about 3-6dB vs a generation 2 - but only while on mains power. So the curves are "correct" but offset on V3 vs v2.So I think Netatmo has budged the input power filter on the Micro USB V3 units. Maybe they used the same circuit as V1/V2 despite a bigger processor in V3? (and maybe more power consumption)So if any of you have Netatmo's please feel free to chime in.I do not want to open mine yet as it is still in warranty - but I have been "fighting" with Netatmo about this since December. And now it is time to check if it is a general issue - or just mine that is defective.So please post your min noise observations on Netatmo together with the HW version number.thank you!

author: bateau020
author_rank: Frequent Contributor
timestamp: May 07, 2021, 05:26:31 am
content: Don't have the device, so cannot help you with the numbers you ask, but there are some things you can try without voiding warranty:use a snap-on ferrite bead. Just clip it on the PSU cable (or better, make one loop), close to the device. Might help. Might also not help. But is cheap and easy to test.get a better PSUadd a USB power supply filter as close to the device as possible (not the audio anti-jitter thingies, you need a power line filter)

author: kaz911
author_rank: Super Contributor
timestamp: May 08, 2021, 07:43:26 am
content: Yes I know the possible "solutions" - but I want to figure out if it is a general issue across all V3 units or just mine that is daft.Right now I have a V2 sitting next to the problematic V3.. Both with original power supplies - and then V3 switched to battery power at midday.