hybridfree/eevblog-posts huggingface dataset:
Good electronics calculator/reference apps for Android? - Page 1
Forum section: electronics / general

author: HwAoRrDk
author_rank: Super Contributor
timestamp: September 15, 2017, 02:14:48 pm
content: Can anybody recommend any good cheap/free electronics calculator/reference apps for Android?I have been using one calledElectroDroidfor a while, but although it has a wealth of features, it's not the most satisfactory of apps to use. It has a few annoying quirks I could do without, and it's generally a bit slow and janky (especially when entering values in input fields; it sometimes takes a few seconds just to show the damn keyboard), which is frustrating when you just want to make a quick calculation. I think the app is one of those that is just a wrapper for the system default web browser displaying HTML & Javascript, not native code.There seems to be hundreds of apps in this genre on the Google Play store, and I could spend days trawling through them and trying a bunch of them out. So many choices it's almost paralysing.

author: NivagSwerdna
author_rank: Super Contributor
timestamp: September 15, 2017, 02:50:20 pm
content: Free42

author: lupinehorror
author_rank: Contributor
timestamp: September 18, 2017, 12:07:02 pm
content: i think electrical electronic calc is very good. it also has theory sections. even paid for the pro version to support the dev.

author: HwAoRrDk
author_rank: Super Contributor
timestamp: September 18, 2017, 02:20:10 pm
content: This one?https://play.google.com/store/apps/details?id=com.schiller.herbert.calcparaeletronicafreeLooks good, but no RC/LC/RLC low/high-pass filter calculator.

author: Shock
author_rank: Super Contributor
timestamp: September 18, 2017, 04:28:14 pm
content: You can get various emulator apps and "load" the calculator of your choice as well.

author: lupinehorror
author_rank: Contributor
timestamp: September 19, 2017, 06:17:38 am
content: @HwAoRrDk yup that's the one. wouldn't hurt to have it installed even if it doesn't tick all your boxes
Atten 8502d (Tenma 21-10130 UK+EU) Any experience? - Page 1
Forum section: electronics / general

author: kPATm
author_rank: Regular Contributor
timestamp: September 13, 2017, 05:29:03 pm
content: Hello. Iv been offered one of these Rework stations. Does anyone have any experience with this model and can give me a few pointers. Tip Cost and if the tips are interchangeable with other models. Thanks

author: kPATm
author_rank: Regular Contributor
timestamp: September 18, 2017, 10:20:15 am
content: Didn't a few members buy one of these from TopLoser?

author: Ice-Tea
author_rank: Super Contributor
timestamp: September 18, 2017, 10:43:03 am
content: Eh...https://www.eevblog.com/forum/reviews/quick%27n-dirty-review-atten-8502d/

author: kPATm
author_rank: Regular Contributor
timestamp: September 18, 2017, 11:10:53 am
content: DOH! Sorry I did do a search obviously I wasnt searchy enough. My apologies

author: Ice-Tea
author_rank: Super Contributor
timestamp: September 18, 2017, 11:31:52 am
content: The Search-Fu takes a long time to master, young Padewan...
Sample book for through-hole/axial components? - Page 1
Forum section: electronics / general

author: kreyszig
author_rank: Regular Contributor
timestamp: September 09, 2017, 04:31:02 pm
content: So far I managed to design a few circuits using only a few components, but as I am starting less trivial projects I need to get lots of basic components. For now I would like to minimize space usage, so I was wondering if it could be a good idea to use some sample book for through-hole/axial components? I saw many SMD component sample books on Ebay, but I am not sure if there are books that could work well with through-hole/axial components. Any idea/suggestion? Basically I am just looking for a space efficient way to deal with hundreds of different components without ending up wasting a lot of time searching for a given component value.Thanks!

author: TimNJ
author_rank: Super Contributor
timestamp: September 14, 2017, 03:40:51 pm
content: How about baseball card/trading card binder sleeves and then get a whole bunch of resistors (and other parts) on cut tape? Then you can label each pocket?

author: tszaboo
author_rank: Super Contributor
timestamp: September 14, 2017, 03:53:36 pm
content: What for? Companies, like farnell dont have minimum order quantity, and the few times TH resistors are used, you can just order them and have them next day.

author: kreyszig
author_rank: Regular Contributor
timestamp: September 14, 2017, 10:18:03 pm
content: Quote from: NANDBlog on September 14, 2017, 03:53:36 pmI live in Canada and shipping cost for a few components is prohibitive (shipping cost can easily represent 5-10 times the total cost of the items), unless I order from China, in which case I have to wait for a month...

author: senso
author_rank: Frequent Contributor
timestamp: September 15, 2017, 12:59:07 pm
content: Try Mouser, for Europe anything over 50 or 60€ is free shipping, so, make a project(dont rely on the cart to save things..) and just keep adding everytime you need something, when you are over the threshold, order it, its 3 days from USA to Europe, to Canada might be 1 day..
Pro'sKit SS-257 Soldering Station - Page 1
Forum section: electronics / general

author: Hydrawerk
author_rank: Super Contributor
timestamp: September 14, 2017, 10:00:35 pm
content: Any opinions onPro'sKit SS-257Soldering Station?https://www.amazon.in/Proskit-SS-257B-Soldering-Station-Stainless/dp/B01L6TGV7Yhttps://www.gmelectronic.com/soldering-station-proskit-ss-257bhttps://www.yeint.fi/fi/tyokalut-2/juottaminen-1/juotinasemat/juotinasema-digit-75w-esd-usbhttps://www.prokits.com.tw/Product/SS-257B/#!
Looking for a good assorted electronic component kit... - Page 1
Forum section: electronics / general

author: kreyszig
author_rank: Regular Contributor
timestamp: September 09, 2017, 04:39:33 pm
content: I am looking for a good basic assorted electronic component kit for prototyping so I don't have to constantly mail order separate components and I was wondering if their are known good ones? So far the one I have found that looked the best is this one:http://www.ebay.com/itm/2400pcs-ASSORTED-ELECTRONIC-COMPONENT-KITS-TRANSISTOR-IC-DIODE-LED-RES-CAP/172844801491?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649Any comment/suggestion?Thanks!
[AUS] Hakko Spares - Page 1
Forum section: electronics / general

author: dave_k
author_rank: Frequent Contributor
timestamp: August 22, 2017, 12:31:51 am
content: Recently I bought a Hakko FR-400 de-soldering station (very happy with it) and now I need to buy some new filters for it. The unit was purchased from RS but bizarrely they don't stock very many spares .. poo.Specifically looking for part number A5019 and A1519.Looking for recommendations for an Australian company to buy genuine spares from. Any ideas?

author: dave_k
author_rank: Frequent Contributor
timestamp: August 22, 2017, 12:49:21 am
content: Posted too soon .. found Mektronics in Sydneyhttps://www.mektronics.com.auSeems they don't put all the spare parts available on their site, but were able to help over the phone.

author: digsys
author_rank: Unknown
timestamp: August 22, 2017, 02:07:12 pm
content: We use both Mektronics and Oritech.https://www.oritech.com.au/Oritech have a broader range of tools etc

author: wasyoungonce
author_rank: Frequent Contributor
timestamp: August 23, 2017, 08:15:33 pm
content: Upton has Hakko A1549...http://www.uptonaustralia.com.au/catalogsearch/result/?q=A1519Ohhh...forgot...good old WEShttps://www.wes.com.au/

author: all_repair
author_rank: Frequent Contributor
timestamp: September 09, 2017, 07:10:25 am
content: I bought a FR410, I am facing the same problem as you.I am not sure is Hakko wanting to seriouslu sell this or not. or they are facing problem because of their very high price of acessories of this new family. I want to stock up the nozzles. The nozzle price is very high compare to their old family. I wrote to the local Singapore office, there was no reply. So I put a note at the hakko main website to the japanese. Then I managed to get a reply from the Singapore asking for my list. I gave her an order list of 2 of each nozzles, and told her to bring in for me. But there was reply fom Hakko Singapore for 6 months now. Now Hakko is playing a silly game to control their pricing worldwide, I used to buy direct from US or from China as I could get better price and service. For the new FR410 and FR400, the price in Japan and Singapore is better, but they still many time that of the old nozzles. I think I have placed too much faith in Hakko this time. My FR410 is an white elephant now. Just found that my old 474 could be repaired as the silicone film were damaged.
Quick 861dw Hot Air Station - Page 1
Forum section: electronics / general

author: Markybhoy
author_rank: Regular Contributor
timestamp: September 06, 2017, 02:47:54 pm
content: Does anyone have a Quick 816dwI got one recently and there is a nasty smell from it, maybe its the rubber on the hose ?Anyone else experience this ?Was a bit sutprised how strong it was!

author: agehall
author_rank: Frequent Contributor
timestamp: September 06, 2017, 07:32:51 pm
content: Have one and there is no smell coming from mine.

author: KL27x
author_rank: Super Contributor
timestamp: September 06, 2017, 08:46:00 pm
content: I have experienced a foul odor from an X tronic hot air station. I, too, believe it came from the rubber hose. It went away after a few months.I believe the smell is cancer, personally.Some say it is just the air of Shenzen district, trapped in the plastic bags.

author: Markybhoy
author_rank: Regular Contributor
timestamp: September 07, 2017, 11:12:38 am
content: Quote from: agehall on September 06, 2017, 07:32:51 pmIm actually getting a replacement sent out so will see how that goes.

author: Markybhoy
author_rank: Regular Contributor
timestamp: September 07, 2017, 11:13:48 am
content: Quote from: KL27x on September 06, 2017, 08:46:00 pmThink I have some of that trapped in a rubber esd mat
Equivalent crimping tool to Huber Suhner - Page 1
Forum section: electronics / general

author: Rémi
author_rank: Regular Contributor
timestamp: August 18, 2017, 07:42:49 am
content: Hi,I need to crimp a Huber Suhner BNC connector (http://www.hubersuhner.com/ProdDet/4649164) but looking at the price of their crimpiung tools I was wondering if we can find something equivalent cheaper. The insert needed is the 76-Z-0-2-1, it is the size 1/2A (see picture attached for dimension).Thanks in advance for your help

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: September 08, 2017, 02:19:38 pm
content: Been there done that.Exactly same insert. Found one at Daniels that should crimp ok (because HX-3 pliers already in place), but both sides declined to commit.Suhner just repeated their sales mantra 'we recommend that you use...' and the DMC sales rep said that he also thinks that it would work out, but that it must be tried and blah blah blah...Changed the connector to a prefab assembly, so not my problem anymore.
Replacing Zhongdi ZD-987 iron with one of another brand - Page 1
Forum section: electronics / general

author: ElectricMist
author_rank: Newbie
timestamp: September 07, 2017, 03:50:41 pm
content: Hello,I own a zhongdi zd-987 soldering/desoldering station. I bought it for cheap, almost new, in a second hand store and I m quite happy considering the price I paid for it.The desoldering gun is very useful, the iron is ok, the temperature grow fast and doesn't drop too much when I use it but the tips are very very bad. I bough some new Duratool ones from Farnell but this is the same sh**t. They wear out very quickly and don't really stick the solder. I use it for smd works, I do most of the passive work with hot air (W.E.P 858D) but I prefer to do fine pitch MCUs and other ICs with the iron.Here is my question :Is the station could be in way or an other compatible with an iron of another brand ? The iron is 24v and I found on eBay some cheap 24v irons (for Atten or Aoyue station) compatible with Hakko tips. Is there a way to adapt these (or a Weller wp80 - not cheap but I really like this one) on a Zhongdi station ? What about the wiring of the heater, the temperature controller, calibration ?I tried to contact Zhongdi for a schematic and a wiring diagram of the iron jack, with no luck.I Hope someone could help,CheersGuillaume
Normal for JBC DI 3000 to overshoot coming out of sleep? - Page 1
Forum section: electronics / general

author: johnson
author_rank: Newbie
timestamp: March 16, 2015, 01:09:38 am
content: I purchased a used JBC DI 3000 soldering station last week with a 2245 handle (current one is T245) and it is overshooting by 35*C consistently every time when going out of sleep and takes about 14 seconds for the temp to come back down. This happens with the two different tips that came with the station (used). The sleep temperature is set at 220*C and if I set the working temperature to 300*C, it'll overshoot to 335*C.If I set it to 350*C, it'll overshoot to 385*C.If I set it to 400*C, it'll overshoot to 435*C.The only thread I could find talking about this issue is from a couple years ago and it seems to be doing the same thing with the same station. It's very concerning that the JBC display shows 385*C and the actual temperature on the probe is over 400*C.https://www.eevblog.com/forum/testgear/need-a-new-soldering-station-)/15/particularly this videohttp://i-tool.de/mediothek/videos/video2.wmvHere is a video of my station.

author: AndyC_772
author_rank: Super Contributor
timestamp: March 16, 2015, 08:24:04 am
content: Many people solder many things with equipment that's far worse. I wouldn't give it any further thought; the tip won't stay that hot once you start using it.

author: johnson
author_rank: Newbie
timestamp: March 17, 2015, 07:15:44 am
content: I have to give it further thought because I work on mobile phones and am starting to do board level repair with some component sizes being 0402, 0201, and 01005.

author: abyrvalg
author_rank: Frequent Contributor
timestamp: March 18, 2015, 09:16:45 am
content: Have you fried anything with this overshoot? The most common tools in small mobile repair shops are "936-style" chinese Hakko clone iron and "852-style" hot air blower (guess their characteristics), but they are still getting the mobiles from "broken" to "working" state with these crap tools somehow.Anyway, why not ask JBC themselves?

author: sunspots
author_rank: Contributor
timestamp: September 05, 2017, 11:23:47 pm
content: Quote from: abyrvalg on March 18, 2015, 09:16:45 amSorry to bring up an old thread but I'm wondering what makes these tools crap? Just because they are Chinese knock-offs or because there is something wrong with the 936/852 products? I'm only asking because I recently purchased some of these tools used (they are authentic Hakko however) and I'm wondering if I should have gone with something more modern. They work for me well thus far.
Favorite test clip leads/minigrabbers - Page 1
Forum section: electronics / general

author: ezalys
author_rank: Frequent Contributor
timestamp: October 16, 2017, 09:46:55 pm
content: Hey everyone!What's everyone's favorite brand of test clips for various power ranges? I'd like to make a collection of banana to minigrabber cables but some minigrabbers I've run into seem to be more robust than others. Any favorites? Digikey part numbers would be appreciated.

author: Jay_Diddy_B
author_rank: Super Contributor
timestamp: October 16, 2017, 10:35:02 pm
content: Hi,For general purpose work I like genuine e-z-hook cables. I like the XR size. They are quite substantial.I have been very happy with the quality. Really well made. Expensive in my opinion worth the money.Digikey number: 461-1159-NDFor other leads I like to make my own.Mueller BU60 clip (Digikey 314-1033-ND)Insulator (Digikey 314-1038-ND) or (Digikey 314-1037-ND )Banana Plug Johnson (Cinch) Digikey J145-NDHigh voltage flexible test lead wire (surplus)Very specific, again expensive, but very good.Regards,Jay_Diddy_B

author: bd139
author_rank: Super Contributor
timestamp: October 16, 2017, 11:01:43 pm
content: Pomona 3782.

author: Jay_Diddy_B
author_rank: Super Contributor
timestamp: October 17, 2017, 10:22:41 pm
content: Hi,Here are a few more pictures of my favorite leads.This first picture shows a Pomona clip (Red) and the E-Z-Hook (Blue). The leads on the E-Z-Hook are more substantial without being a problem.Here is a clip lead to banana plug:Here are pictures of the components used to make it:Regards,Jay_Diddy_B

author: Jay_Diddy_B
author_rank: Super Contributor
timestamp: October 17, 2017, 10:31:44 pm
content: Hi,Here is a picture of a couple of big clips that I found at a Hamfest. They are Mueller 100 Amp clips part number 21c:I have shown a regular clip to give you an idea of the scale. They are made from solid copper.Regards,Jay_Diddy_B

author: tggzzz
author_rank: Super Contributor
timestamp: October 17, 2017, 11:10:46 pm
content: For 1.27mm pitch components, I like the Tektronix 206-0364-* grabbers. But nothing that size will be very robust, nor suitable for substantial power.

author: tggzzz
author_rank: Super Contributor
timestamp: October 17, 2017, 11:08:26 pm
content: For 1.27mm pitch components, I like the Tektronix 206-0364-* grabbers. But nothing that size will be very robust, nor suitable for substantial power.
Instrument for radio amateurs and electronics. - Page 1
Forum section: electronics / general

author: tigr
author_rank: Regular Contributor
timestamp: July 09, 2017, 12:06:00 pm
content: Radio amateurs and professionals who deal with electronics need different tools. In the first place, they are good screwdrivers and "eyes".

author: tigr
author_rank: Regular Contributor
timestamp: July 13, 2017, 10:39:53 pm
content: Clips for the repair of small boards.

author: tigr
author_rank: Regular Contributor
timestamp: July 22, 2017, 10:06:55 am
content: Sheap soldering station for SMD.And good solder.

author: tigr
author_rank: Regular Contributor
timestamp: August 05, 2017, 12:10:38 am
content: Hand drill PCB 0,3-3,2mm.

author: tigr
author_rank: Regular Contributor
timestamp: August 17, 2017, 11:03:57 pm
content: A simple tester with sound indication.You can check the resistance, capacitors, diodes, transistors.The red test probe indicates the polarity of the diodes.

author: tigr
author_rank: Regular Contributor
timestamp: August 26, 2017, 07:11:43 am
content: Solder aid tools.

author: tigr
author_rank: Regular Contributor
timestamp: September 04, 2017, 06:14:15 pm
content: Stripper.
Pace ST45 - Page 1
Forum section: electronics / general

author: BurningTantalum
author_rank: Frequent Contributor
timestamp: January 29, 2017, 01:05:18 pm
content: Does anyone know if a Pace ST45 has a dual primary transformer that can be jumpered for 240V or 115V ?Regards, BT

author: chris_leyson
author_rank: Super Contributor
timestamp: January 29, 2017, 01:24:16 pm
content: My ST75 service manual doesn't show the transformer primary windings in the schematic so I pulled the covers off, it's got a dual primary transformer so I would guess that probably the other PACE power supplies have dual primaries.

author: BurningTantalum
author_rank: Frequent Contributor
timestamp: January 30, 2017, 12:23:47 am
content: Excellent, thanks for that Chris.BT

author: tevito06
author_rank: Newbie
timestamp: July 02, 2017, 06:15:05 am
content: Dear:The pace mod. ST30 also has double turn on the primary transformer.Greetings.

author: texaspyro
author_rank: Super Contributor
timestamp: September 03, 2017, 05:39:58 pm
content: Most of the earlier Pace stations only have single primary transformers. The 220V units have model numbers that end in "E" (E for export).
Branded/Named 858D hot air stations VS Generic/Nameless 858D hot air stations - Page 1
Forum section: electronics / general

author: Vishal Dhayalan
author_rank: Newbie
timestamp: September 01, 2017, 04:14:26 pm
content: Hi everyone, I'm new to the blog but have been following Dave's videos for a long time now. No surprise i cam across his review on the Atten 858D hot air station! Been wanting to buy one for quite a while as I have a low budget and that's pretty much the one that fits... I'm stuck on whether to buy a 858D which has a name such as 'yihua', 'atten', 'youyue' etc printed on it OR a Genric, nameless one that has quite a good number of reviews (I guess cos it's way cheaper than named ones)??Youyue brand 858D (?32.84, inc additional heating element + 6 nozzles):https://www.aliexpress.com/item/700W-Hot-Air-Gun-YOUYUE-858D-220V-ESD-unlead-adjust-temperature-Soldering-Station-Welding-gun-LED/32797600905.html?spm=a2g0s.13010208.99999999.288.cx9KohUnamed 858D (?23.31, no additional stuff):https://www.aliexpress.com/item/Domestic-service-858D-SMD-Soldering-Desoldering-Station-Hot-Air-Rework-Gun-3-Nozzles/32692633841.html?spm=2114.search0104.3.2.VoeHAH&ws_ab_test=searchweb0_0,searchweb201602_3_5460015_10152_10065_10151_10130_10068_10209_10192_5470015_10190_10307_10301_10137_10303_10060_10155_10154_10333_10334_10056_10335_10055_10336_10054_10059_5490015_10332_100031_10099_5380015_10103_10102_10052_10053_10107_10050_10142_10051_10324_10325_10326_10084_10083_10080_10082_10081_10110_10111_10112_10113_10114_10179_10312_10313_10314_10184_10078_10079_10210_10073-10333_10102,searchweb201603_21,ppcSwitch_7&btsid=661a161b-634d-42bb-a802-1a46ba80991c&algo_expid=03b774d9-a98f-4a00-bc3c-558e90fd26bd-0&algo_pvid=03b774d9-a98f-4a00-bc3c-558e90fd26bdAny help as soon as possible would be very appreciated! Key questions:1. Any fundamental or important differences between the two (named VS unnamed, in general) ?2. I know none is guaranteed safe and I'm going to test earthing and AC wiring anyways, but anything else regarding safety that I'm not aware of?Would be of great help if anyone can link the product they had bought under ?30 and is good! Thank you so much.

author: Vishal Dhayalan
author_rank: Newbie
timestamp: September 01, 2017, 05:59:35 pm
content: The '?' before prices are GBP (Great British Pound)

author: don.r
author_rank: Frequent Contributor
timestamp: September 02, 2017, 07:03:33 pm
content: See this threadhttps://www.eevblog.com/forum/reviews/cheap-hot-air-stations-atten-858d-vs-ripoffs/
Hakko FX-951 Cheat Sheet - Page 1
Forum section: electronics / general

author: Kryoclasm
author_rank: Regular Contributor
timestamp: September 01, 2017, 06:47:49 pm
content: Well, I was getting frustrated with my 951 soldering station, because I can't ever remember all the settings. The OEM instructions are seriously overly cumbersome.I made myself a cheat sheet so I can keep under the station for when I need to make another change in like 2 years from now.If anyone cares, I attached a copy.Hope it is useful to yall.
Witch used solder station Power Source? - Page 1
Forum section: electronics / general

author: Nuno_pt
author_rank: Frequent Contributor
timestamp: August 30, 2017, 03:06:50 pm
content: Hi all,I'm looking to buy a new solder station to replace my chinese Atten rework station, and I'm considering buying a Metcal or Pace system, but not shure witch one.For the Metcal it's the MX-500P (11 or 21 doesn't mater since the 11 can be converted to 230V), for Pace would be something around PPS-85E. But for now would only be the Power unit since they run low on ePay.I saw that the Iron for the MX-500 is around $80 and also the same for the stand (other iron or tweezer can be bought at a later stage), for the Pace the SP-2A or 1A are only from China or Asia and seem more expensive.Would it be an advantage the 3 channels from Pace (this would be a full rework station in one unit) vs the MX-500, I would be better buying other desolder station and other hot air station (Pace or not), instead of having the 3 systems together in the PPS?Any opinion or comment?
Motor duty cycle "S1" on air compressor? - Page 1
Forum section: electronics / general

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 29, 2017, 10:09:44 am
content: I started a thread previously asking for recommendations regarding buying a new air compressor.Now that I have bought one, I would like to understand what ecactly is meant by the S1 written on the air compressor's tank.I tried deciphering it using my old compressor that had a S3 30% marking on it so I thought that should mean it had a periodic intermittent duty of 30% so for 3 minutes of on time it need 7 of rest before the cycle starts over again.S1 seems to be continuous duty so does that mean I can run the compressor for as long as I wish since it will eventually reach a temperature equilibrium or is the motor only rated for continuous duty and not the pump itself?

author: BradC
author_rank: Super Contributor
timestamp: August 29, 2017, 10:19:03 am
content: Any decent compressor should be rated for continuous duty. The pump will heat up until it reaches equilibrium.Remember to run it in and change the oil before you give it a good thrashing.

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 29, 2017, 10:22:28 am
content: Quote from: BradC on August 29, 2017, 10:19:03 amI did not read in the manual that it needs to be broken in or that it needs an oil change afterwards.Is it really necessary? I've already let it run for about 20 minutes at a steady 90 PSI so I guess it's too late for that...

author: BradC
author_rank: Super Contributor
timestamp: August 29, 2017, 11:07:48 am
content: Dunno. My manual said to run it unloaded for about 20 mins, then load it up and run it against half pressure for about 20 minutes, then change the oil. Unless you plan on using it hard for the rest of you life you'll probably be ok.

author: drummerdimitri
author_rank: Frequent Contributor
timestamp: August 29, 2017, 11:10:23 am
content: Quote from: BradC on August 29, 2017, 11:07:48 amI will not be running it more than an hour a week so shouldn't be an issue.Also, my guess is if they thought it was important to do so then they would have mentioned it in the manual so I am sure they know better...
Digital rpm meter suggestion required - Page 1
Forum section: electronics / general

author: anishkgt
author_rank: Frequent Contributor
timestamp: August 28, 2017, 05:48:22 pm
content: Hi all,I am looking for distal rpm meter, a basic one to check rpm of spindle and circular saw. Would this be okhttps://www.ebay.com/itm/140666635376Or are there anything better. How about UNI-T brands ?https://www.ebay.com/itm/262153666095Sent from my iPhone using Tapatalk
knobs for pots or encoders - Page 1
Forum section: electronics / general

author: mySystemEngineer
author_rank: Contributor
timestamp: August 30, 2017, 11:11:54 am
content: i've purchased this encoder:ebayit has a cross section of a semi-circle:do you know where on ebay i can purchase a knob for it?all knobs fit the regular full circle shape pots.thank you

author: ataradov
author_rank: Super Contributor
timestamp: August 30, 2017, 12:00:30 pm
content: They are called D shaft knobs. There are lots of sellers, but they all mostly sell the same 2 or 3 types.

author: ataradov
author_rank: Super Contributor
timestamp: August 30, 2017, 12:26:13 pm
content: There are plenty of press fit ones, like this, for examplehttps://www.ebay.com/p/5-Pcs-Adjustable-Turn-Rotary-Knob-for-6mm-D-Shaft-Potentiometer-/624040511?&hash=item2a7f3a7429:g:CBwAAOSwnF9Y6iNg&_trkparms=pageci%3Afd464aa6-8d7d-11e7-bc5f-74dbd1803c3e%7Cparentrq%3A33186a7915e0a9c953b10730fffee1a0%7Ciid%3A1&trdt=0&rdtsrc=vi&iid=182523163689All that say "6mm D shaft" will work.

author: mySystemEngineer
author_rank: Contributor
timestamp: August 30, 2017, 12:39:27 pm
content: thank you wilfred and alex

author: Richard Crowley
author_rank: Super Contributor
timestamp: August 30, 2017, 12:56:11 pm
content: We are all assuming that this has a 6mm diameter shaft.The Ebay listing fails to mention the shaft diameter, but that is a reasonable assumption.Note that many vintage pots, switches, etc. had 0.25 inch (6.35mm) diameter shafts.So there will be knobs made for 1/4 inch out there as well.A 1/4 inch knob will typically fit on a 6mm shaft with a bit of "slop" (or eccentricity).

author: Richard Crowley
author_rank: Super Contributor
timestamp: August 30, 2017, 03:42:40 pm
content: Quote from: wilfred on August 30, 2017, 01:13:21 pmMouser lists 517 of them (more than half of the total selection).
Problem with focus nikon smz-1 - Page 1
Forum section: electronics / general

author: toly084
author_rank: Newbie
timestamp: August 18, 2017, 04:34:23 pm
content: Hi all, I need help. I have nikon smz-1, this microscope do not have focus on all range of zoom. First, the picture in oculars was misalign, I solved this. But without manual it is enough hard. May be someone have manual for repair oc this microscope? I found on this forum manual for smz-10, but it is different.

author: eKretz
author_rank: Frequent Contributor
timestamp: August 19, 2017, 10:42:51 pm
content: I have one with the same issue. I have done some tinkering with adjustments but haven't found a way to fix it either. I also have a convergence misalignment at one end of the zoom. Did you find how to adjust that perchance?
Hakko Europe distribution - Page 1
Forum section: electronics / general

author: lacek
author_rank: Regular Contributor
timestamp: September 07, 2017, 10:29:50 am
content: I have found Hakko FX-951 in a German shop priced at 445 Euro (edit: its 410 now, wow) and in Hungarian for 316 EUR. In both cases I followed the official distribution channels starting from Hakko main webpage. Neither of these products should be counterfeits. What else would explain the price difference?https://tbk-onlineshop.de/produkt/paket-hakko-loetstation-fx-951-inkl-loetkolben-fm-2028-und-loetspitzen/http://hakkoshop.eu/index.php?route=product/product&filter_name=fx-951&product_id=225

author: sotos
author_rank: Frequent Contributor
timestamp: September 07, 2017, 11:56:56 am
content: Quote from: lacek on September 07, 2017, 10:29:50 amLook also here at 279 € .http://www.batterfly.com/shop/hakko-fx951?filter_name=FX-951

author: Gromitt
author_rank: Regular Contributor
timestamp: September 07, 2017, 12:26:05 pm
content: Quote from: sotos on September 07, 2017, 11:56:56 amPlus VAT.And the other prices includes VAT. The Hungarian one costs 249 € ex VAT so that's the cheapest.

author: lacek
author_rank: Regular Contributor
timestamp: September 07, 2017, 12:45:58 pm
content: Yes. But why the price differs so much bettween two EU countries? VAT, custom fees, distribution costs should be very similar.

author: stj
author_rank: Super Contributor
timestamp: September 07, 2017, 01:39:14 pm
content: just greed - places charge what they think they can get.

author: pfrcom
author_rank: Contributor
timestamp: September 08, 2017, 02:29:48 am
content: Are you comparing apples with apples ?TBK show accessories, including two tips (T15-B2 & T15-D24)Is HakkoShop's price for station only, with everything else extra cost ?That is catch with buying FX951 here from Australian vendor, tips not included

author: lacek
author_rank: Regular Contributor
timestamp: September 08, 2017, 10:24:41 pm
content: Apparently yes, but even with extra tips the price difference is currently over 170 EUR. The prices in German shop seem to vary daily on the other hand..

author: bd139
author_rank: Super Contributor
timestamp: September 08, 2017, 10:58:11 pm
content: The crappy distribution and inconsistent pricing of Hakko stuff in the EU as well as numerous hooky clones was what made me buy a Weller in the end.You can pick up a WSD 81 for 295€ + VAT from RS and if it fucks up in the next few years they will just swap it out no hassle.
Rework Station: Metcal HCT900 vs Quick861DW - Page 1
Forum section: electronics / general

author: codlong111
author_rank: Newbie
timestamp: August 14, 2017, 04:50:29 am
content: Hi guys, so like the title, I need to get a new rework station for pcb repair. Most of my repairs will be phone and laptop pcb. So basically need a station that accurate and fast heating. I did quite a bunch of research and heard a lot of good stuff about this Chinese Quick 861DW guy, I was about to buy it but I'm in Australia/Melbourne, and you know that it is really hard to get these equipment over here so of course I have to buy it from ebay, but again, most seller is oversea, takes really long to ship and apparently they don't even mention about the warranty term. The price is also quite high as well since It got so famous. I was a bit hesitate and today Mektronics (largest OZ tools and equipment supplier) has Metcal HCT-900 on sale. Here are some of my thought:+Metcal HCT-900: (oz stock for $530 Aud)https://www.mektronics.com.au/catalog/product/view/id/7372/s/oki-hot-air-convection-tool-220v/category/13/Australia Stock12 months Aus warrantyFast shippingNot a lot of reviews, so I have no idea how well it perform+Quick 861DW: (China stock of course, eBay ranges from 350-550)China StockPretty hard to find in Australia, only eBay has itWarranty term is unclearShipping from 7 days to 30 days (depends on seller)Lots of good review.So yeah, which one do you think I should pick? Metcal HCT-900 and QUICK 861DW. Any input would be greatly appreciated, and of course you can just give me another good station advise, but again it has to be easy to pick up in AustraliaThanks guys

author: codlong111
author_rank: Newbie
timestamp: August 14, 2017, 11:22:46 pm
content: Mmmm, anyone has any idea?

author: codlong111
author_rank: Newbie
timestamp: August 15, 2017, 09:38:37 am
content: Thank you so much for your reply. Yeah, I initially wanted to go for Quick as well, but it is extremely hard to get one in Australia. Any recommended online store that does international shipping? As for the preheater, I already owned the the Hakko FR 830 unit.
Stag Orbit 48 Eprom Programmer Software Upgrade - Page 1
Forum section: electronics / general

author: znac049
author_rank: Newbie
timestamp: August 14, 2017, 07:55:47 am
content: Hi,I have a Stag Orbit 48 Eprom Programmer. I want to burn some old TMS2516 Eproms but it turns out I need a newer version of the programmer software than I have - I have version 12.0 and support for the 2516 was added in version 24. I've Googled unsuccessfully and contact a guy who has a couple of pages dedicated to this device but with no luck.Does anyone have, or know where I can find, a version 24 or newer software update for the Stag? I have the Windows software (StagCom+) running happily on my Win7 Pro 64-bit all ready to update the programmer as soon as I can find the software update file.Thanks for reading-Bob

author: neslekkim
author_rank: Super Contributor
timestamp: August 14, 2017, 11:34:06 am
content: not the dat file that is here?http://matthieu.benoit.free.fr/stag_orbit_48_Programmer.htm

author: znac049
author_rank: Newbie
timestamp: August 14, 2017, 05:51:14 pm
content: Sadly no. That's just a file that allows client software to map human readable device info into device codes understood by the programmer. However, that file is for a much later revision of the programmer firmware (29.00) than the one I have (12.0). It's very tantalising because I can see my target device listed.If I attempt to perform a programmer update from the StagCom+ windows client, I get told to browse to the folder containing the "Update Files" (plural). When I pick an empty folder just to see what happens, I get a cannot locate file "FLASH119.SBN". I don't know if that's the only file I need or if its just the first of several. At least that's another clue...-Bob
Recent score/purchase - Page 1
Forum section: electronics / general

author: willie_phistterbut
author_rank: Newbie
timestamp: August 08, 2017, 09:21:14 pm
content: Yesterday I got a bunch of eval boards and a Hakko FM-204 with the desoldering lead, a solder feeder, electric tip cleaner and a few misc. stands. I found a soldering tip and realized that it might be used in place of the desoldering iron portion. Is that possible? Or do I need to pick up the soldering lead for this thing too? Two full boxes of random prototyping and eval boards. Out of my mind with electron lust right now lol There were a few dinkey soldering kits too I'd like to put together, that's why I ask. The tip is probably not one I'd use everyday.

author: Shock
author_rank: Super Contributor
timestamp: August 10, 2017, 10:43:42 pm
content: Quote from: willie_phistterbut on August 08, 2017, 09:21:14 pmAre you talking about sticking a soldering heater into the desoldering irons heater socket? I don't think it was intended to be used like that.The HAKKO FM-2027 is the common iron that is supported on this station, you will need a different holder for it as well, so something like the FM2027-04 kit.http://www.hakko.com/english/products/hakko_fm204_parts.html#productNav
Can CCTV  "see" at night when lighting is non constant? - Page 1
Forum section: electronics / general

author: ocset
author_rank: Super Contributor
timestamp: August 09, 2017, 08:18:41 pm
content: Hello,Our LED current looks like the following due to being from an offline regulator with no output capacitance.Will CCTV cameras be able to film activity in the streets at night-time with this kind of heavily amplitude modulated lighting?

author: abraxa
author_rank: Frequent Contributor
timestamp: August 10, 2017, 08:02:39 am
content: The period is about 10 ms, which means there'll be a flicker of about 100 Hz. I'd say that this is okay because the camera sensor operates at frame rates <= 30 Hz.However, those current spikes are worrisome. If this is a commercial product, I'd be willing to bet that you'll face issues with EMC.

author: tyrel
author_rank: Contributor
timestamp: August 10, 2017, 09:42:23 am
content: You may get flicker in your video, depending on the frame rate and exposure time of the camera. You would have the same problem with incandescent or fluorescent lighting (fluorescent is the worst).Since your light source flikers at 100Hz, make sure that you use a frame rate that is a divisor of this frequency (e.g. use 25 frame/s, not 30 frame/s), and that your exposure time is at least 0.01s, and you should have no problem.

author: Hydron
author_rank: Super Contributor
timestamp: August 10, 2017, 09:49:19 pm
content: In low light you normally won't see strobing as shutter speed will be slow (1/frame rate). As the scene gets even dimmer cameras can even average/expose multiple frames, essentially trading off frame rate for sensitivity. Can make it difficult to recognise moving targets!It's not uncommon for cameras to have a setting for power line frequency for some sort of flicker filter. This is probably of most use when there is significant light (so short shutter speed) but that light is flickery.
Tool to turn Straight Lead into Crimped/Bend leads - Page 1
Forum section: electronics / general

author: EEVaditya
author_rank: Regular Contributor
timestamp: August 08, 2017, 05:05:29 pm
content: Hello,Recently I was looking for Transient Voltage Suppressor (P/N: ERZV14V470) crimped/bend lead but everywhere the straight lead (P/N:ERZV14D470) was available.So is there any tool to turn Straight leads of components into crimped / bend leads which would be handy in case of ceramic disc cap, MOVs etc.

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: August 08, 2017, 05:43:05 pm
content: Can't say for sure, as the datasheet doesnt show the form of crimp/bend that applies here, but EREM has a series of pliers for that (for example, to modify TO220 into SM parts).

author: M4trix
author_rank: Frequent Contributor
timestamp: August 08, 2017, 06:10:22 pm
content: Something like dis ?http://www.olamefusa.com/e_forming_handtools.htm

author: nanofrog
author_rank: Super Contributor
timestamp: August 08, 2017, 08:09:26 pm
content: If you want to cut the leads separately,lead forming pliersare what you'd want to search for. However, if you'd rather it form & cut in one operation, search forstand-off cutter.FWIW, I've the latter type; one fromSchmitz(labeled CK Tools) and the other from Belzer (German made, pre-Apex acquisition;Brazilian site). Schmitz makes an excellent product, and offer excellent value as well IME (a number of other brands are just rebranded Schmitz at a higher price of course). Erem makes their own, but are quite pricey.Piergiacomi may be less expensive, but do note they're made of stamped steel and may not have quite as wide a jaw as forged models (could take a bit more time to line up properly before squeezing the grips, which might mean something to you if there's a lot of them to do).BTW, jewelry makers' tools may pop up in your searches, and some of it is usable for electronics (might be able to find a bargain for nylon jaw for lead straightening or making a C bend for example, as well as more common profiles of precision cutters & pliers such as smooth jaw versions of flat, snipe, and round nose).Edit: Added snipped photo from Schmitz's site.

author: Cubdriver
author_rank: Unknown
timestamp: August 09, 2017, 05:08:38 pm
content: For kinking component leads I got a pair of these a few years ago; I'm happy with how they work:https://www.amazon.com/Xuron-573-Xuro-Former-Lead-Former/dp/B000IBOPFW/ref=sr_1_6?ie=UTF8&qid=1502297353&sr=8-6&keywords=xuron+leadThis is the result:-Pat
YwRobot breadboard power supply - Page 1
Forum section: electronics / general

author: cdev
author_rank: Super Contributor
timestamp: August 18, 2017, 08:56:08 pm
content: Due to a credible negative review of this products potential failure modes I am revising this post to not be positive. If you are considering buying it, pleaseread this reviewso you have a better idea of what can go wrong with it before you do.I recently bought this nifty device that sits to the side of a breadboard, accepts a standard DC power plug with any voltage from 7-12 volts or so and supplies two regulated (or non-regulated) sources of power to the power rails on the side.It cost me under $2, including shipping, which is a low price considering its utility, it seems. However, it has some issues. It has a USB connector but I am going to cover it.When the jumpers are set - it does supply regulated power, the power rails are changeable and the voltages within spec.Quality looks adequate- the solder connections look durable.Of the two AMS1117 labeled voltage regulator chips, one appears to be recycled, but they both work fine so far.This is the device I have..http://www.petervis.com/Raspberry_PI/Breadboard_Power_Supply/YwRobot_Breadboard_Power_Supply.html
Is this ESD mat any good? - Page 1
Forum section: electronics / general

author: microbug
author_rank: Frequent Contributor
timestamp: July 12, 2017, 03:39:15 pm
content: I'm looking for an ESD mat to protect my bench, and found this on eBay:link.Is it any good?ThanksEdit:This onelooks better (a complete kit). What about it?

author: Ian.M
author_rank: Super Contributor
timestamp: July 12, 2017, 04:51:05 pm
content: Maybe, maybe not. Seehttps://www.eevblog.com/forum/reviews/cheap-esd-mat-from-ebay-to-protect-my-desk/It doesn't mention its heat resistance so the odds are its the cheap and nasty vinyl mat. Even so its many times better than no mat at all - just don't solder anything on it without a stainless tray or sheet to protect it. (not anodised Aluminum - the oxide layer would insulate it from the mat and could defeat the ESD protection)

author: microbug
author_rank: Frequent Contributor
timestamp: July 12, 2017, 04:57:44 pm
content: This onementions resistance to high temperature. Could it still be vinyl?

author: Ian.M
author_rank: Super Contributor
timestamp: July 12, 2017, 05:03:15 pm
content: That looks like the good stuff - "150C No defect, 200C No defect, 250C No defect, 300C Very slight, 400C Slight indent, 500C Burnt." means it will withstand momentary contact with a soldering iron tip at 370 deg C (700 deg F) and has no problems with conducted heat or solder splashes.Its got two studs fitted so you can use one for grounding the mat and the other for a wrist strap (not supplied).

author: microbug
author_rank: Frequent Contributor
timestamp: July 12, 2017, 05:25:38 pm
content: Thanks, ordered that one. The seller is also on eBay and has their own website, prices are the same across each.

author: Mark
author_rank: Frequent Contributor
timestamp: July 19, 2017, 02:04:31 pm
content: PC Valet is a good seller, I have a few of their mats including the high-temp one, very happy with all of them.

author: mySystemEngineer
author_rank: Contributor
timestamp: August 02, 2017, 06:52:38 am
content: i have this onehttp://www.ebay.co.uk/itm/381465289780and it's not so heat resistant. you can see it is very soft.the best mats are the ones used as anti-static floor in surgery rooms.they are very hard, durable and heat resistant.if you can, get some scraps of it.
HAKKO FX-1002 New IH Micro Soldering Iron - Page 1
Forum section: electronics / general

author: simone.pignatti
author_rank: Frequent Contributor
timestamp: August 01, 2017, 04:54:15 am
content: There is something new for lovers of induction heating systems. Hakko has released a new micro iron which works with the FX-100.Link to HAKKO websiteFX-1002http://www.hakko.com/english/products/hakko_fx1002.htmlFrom HAKKO website:What is IH (High-Frequency Induction Heating)?Unlike resistance-based heating systems that control temperature by turning heater power on and off via a sensor, with an induction heating system the soldering tip itself produces heat and maintains a constant temperature, enabling a small soldering tip to handle high thermal capacity, high-density substrates.
ID this plug (socket) please. - Page 1
Forum section: electronics / general

author: midsomerdave
author_rank: Newbie
timestamp: July 27, 2017, 06:41:34 pm
content: Hi, can anyone tell me the correct name/manufacturer of the item in the below pic please? It's for the low voltage control/power cable (5 pin, 14mm across the pin area) from an Eliza-Atlas Copco ELI25 electric screwdriver. Many thanks. Dave.

author: Prime
author_rank: Regular Contributor
timestamp: July 28, 2017, 09:20:56 pm
content: It's a DC power connector (or a microphone plug) but I have no idea who made them originally

author: NavyBOFH
author_rank: Contributor
timestamp: July 29, 2017, 04:27:19 pm
content: Without getting into measurements, this looks like your plug almost 100%http://www.ebay.com/itm/M16-16mm-5-Pin-Screw-Type-Electrical-Aviation-Plug-Vc-Nice-Connector-New/281662206161For the future: those locking collar-type DIN connectors with the key in them to ensure they're plugged in only one way are known as "aviation connectors". A lot of them are used on cheaper soldering stations and other projects... but I hope this helps you!

author: SL4P
author_rank: Super Contributor
timestamp: July 30, 2017, 01:53:05 am
content: AFAIK, they were calledACMEplugs/connectors.
Residential LED lighting:  How much do they fade with age? - Page 1
Forum section: electronics / general

author: cvanc
author_rank: Frequent Contributor
timestamp: July 20, 2017, 04:33:02 pm
content: Are my eyes deceiving me or are the LEDs I installed in my house about a year ago not as bright as they used to be?I remember early LEDs had "fade as they age" issues. Is there still some of that to be expected? Are general trends known & quantified (i.e. 15% loss after 1,000 hours, or something like that)?Thanks.

author: coppice
author_rank: Super Contributor
timestamp: July 20, 2017, 04:36:39 pm
content: A lot of early domestic lighting LEDs faded quite rapidly. Just a few months operation was often enough to see obvious fading. These days they seem to have largely overcome this issue. All LEDs, from the earliest red ones, fade slowly with time, but as long as they are kept within their specified temperature range the process should be very slow.