hybridfree/eevblog-posts huggingface dataset:
Looking for a good book on the oscilloscope - Page 1
Forum section: electronics / beginners

author: golash
author_rank: Contributor
timestamp: February 24, 2015, 03:25:05 am
content: HiJust getting started electronics and would like a good book on oscilloscopes. I've been online looking andit seems most of the oscilloscope books are older versions. Anything new available. Covering the latest technology.Thanks

author: mtdoc
author_rank: Super Contributor
timestamp: February 24, 2015, 03:41:45 am
content: XYZs of Oscilloscopes

author: Cliff Matthews
author_rank: Unknown
timestamp: February 26, 2015, 12:59:08 am
content: Well that's 60 pages of goodness, and I can say thanks too!

author: 2Bad4u
author_rank: Newbie
timestamp: February 26, 2015, 02:57:04 am
content: Just what I was looking for and thanks for posting.
looking for a  good company that makes pcb's - Page 1
Forum section: electronics / beginners

author: Twisted_Wizard
author_rank: Newbie
timestamp: July 22, 2018, 10:20:53 pm
content: Hello, I want to design a simple PCB for a commercial product and am looking for one stop solutions for having it made. I'm looking at using magnets to connect to a board that is under 15 mm squared?

author: Pirateguy
author_rank: Regular Contributor
timestamp: July 23, 2018, 05:34:57 pm
content: hi, i am working with wizard on this project, and what we are looking for is to learn how to shop for the right company to producesome small orders of pcb's.the product will consists of small boards (no smaller then 1"x1" though) with some battery tabs and a hand full of discrete components.and we are looking for a 1 stop solution.how does one go about shopping for this kinda thing?is there a guide anywhere?

author: floobydust
author_rank: Super Contributor
timestamp: July 23, 2018, 06:07:38 pm
content: PCB Shopperdoes price comparisons between PCB fabs, it can save some time.

author: Pirateguy
author_rank: Regular Contributor
timestamp: July 24, 2018, 03:20:33 am
content: one look at that tells me wiz needs to learn more about the whole process of having a product produced.Didn't Dave Jones have a video about that a few years ago?i seem to remember one where he goes over the entire process in detail, but i can't seem to find it now...
Looking for a good PMIC usb type C IC. - Page 1
Forum section: electronics / beginners

author: steamedhams
author_rank: Regular Contributor
timestamp: November 22, 2021, 04:40:44 pm
content: Looking for a good PMIC usb type C IC. Avoiding USB C PD...Not a flat pack.What are most people using? I still dont see lots of hobby projects with type c connectors.

author: Keivinstib
author_rank: Newbie
timestamp: November 26, 2021, 12:53:46 pm
content: Today, an increasing number of devices and applications are adopting USB Type-C connectors for many good reasons:With reversible plugs, it can be plugged into a device any which way: both sides are up;Can carry up to 100W of charging power (from 5V/0.5A up to 20V/5.0A);Able to merge both legacy Type-A and -B functions in a single port and can even change roles on the fly.
Looking for a good source of electronic parts. - Page 1
Forum section: electronics / beginners

author: Greate
author_rank: Contributor
timestamp: March 19, 2012, 10:42:40 pm
content: I am looking for an online store to where I can but electronic parts (transformer, semiconductors, wires, soldering materials, pcb etc).I don't like ebay since the purchase will be made thru the company. The store shoul be able to ship to northern California.Please recommend...Thanks!Sent from my A100 using Tapatalk

author: sonicj
author_rank: Frequent Contributor
timestamp: March 19, 2012, 10:58:39 pm
content: http://www.eevblog.com/wiki/index.php?title=Component_Distributors#USA_.26_Canada_5

author: olsenn
author_rank: Frequent Contributor
timestamp: March 19, 2012, 11:50:02 pm
content: try futurlec.com. They are slow but have an insane amount of items and are extreamly cheap. Check out the following post:https://www.eevblog.com/forum/buysellwanted/where-to-buy-components/msg85526/#msg85526

author: ivan747
author_rank: Super Contributor
timestamp: March 20, 2012, 12:26:47 am
content: For one-off projects, try Jameco. They sell generic parts quite cheap and they are not far away from California, I think.Jameco.com

author: Ajahn Lambda
author_rank: Regular Contributor
timestamp: March 20, 2012, 01:11:03 am
content: Just my own opinion and whatnot, but I'd never buy electricalcomponentsfrom eBay unless I could drive to the seller and personally inspect the item(s), and if it's a semiconductor, they've got to be an authorized seller to get my business. Too many counterfeit parts on the market for me to take chances, and it's not worth saving a few pennies or dollars only to wind up with unhappy customers and myself a shitty reputation for cutting corners. That said, I do have a short list of local shops with eBay store fronts; these are places where I know the owners and employees, and the ones I keep doing business with are reputable. Sorry for the digression.For electrical & electronic parts, I really like Future Electronics, especially for the little oddball parts they (and no one else) carry. Plus they have an office right here in Grand Rapids. Yay! My other primary sources are Mouser, Newark, Digikey, Allied Electronics, and occasionally Arrow. Sometimes you can get lucky and find a cool doodad on Amazon for a decent price, like non-specific lab or office equipment, but again, caveat emptor.For non-electronic stuff (cases, hardware, raw materials), I havemanysources. I do keep a 'green book' of good American suppliers handy for just about everything I've run across, from aluminum to zirconium, as well as a second 'black book' of suppliers toneveruse again.
Looking for a LED controller chip or a LED controller idea - Page 1
Forum section: electronics / beginners

author: Pygmalion
author_rank: Regular Contributor
timestamp: March 29, 2023, 07:15:57 pm
content: Hello all,I recently bought a LED ring lamp (https://www.aliexpress.com/item/1005003177106858.html). It is a nice design, but it stopped working after about an hour and I have already received the refund.Being an electronics enthusiast, I wanted to see if I could fix it. I found that all the contacts are OK, all the LEDs are working. The obvious conclusion is that the LED controller chip is dead.However, I could not find the chip type on the net - it is probably an OEM product made specifically for the lamp manufacturer.It's a bit of a shame to throw everything away because of a faulty chip, so I'd like to ask you for suggestions on what to do. Do you know of a good and simple LED controller chip? There are two types of LEDs in the ring, one warm and one cold colour. Originally the chip could control the colour temperature by turning on one kind, the other kind or both, and it could also control the brightness. So I assume the output of the chip was a simple PWM of the 5V input voltage. The resistors for the LEDs are already in the ring.I could also draw a circuit diagram if you think that would be useful.Best regards

author: barshatriplee
author_rank: Regular Contributor
timestamp: March 30, 2023, 09:15:13 pm
content: Not sure. You can check this one :https://se.rs-online.com/web/p/led-driver-ics/1223047

author: Pygmalion
author_rank: Regular Contributor
timestamp: March 30, 2023, 09:44:48 pm
content: Thank you for the suggestion. But it's too complicated, because in my case both the input and the output are 5V. The chip just chops the voltage into PWM. Worst case, I will just use a 555 timer and a potentiometer in an astable mode.
Looking for a meanwell 1500w to 2000w switching power supply or close to quality - Page 1
Forum section: electronics / beginners

author: New Nubby
author_rank: Contributor
timestamp: September 20, 2022, 04:43:05 pm
content: Hi guys,I am looking for a decent adjustable power supply like meanwell or meanwell in the 1000w/2000w. Found some chinese no name brands CHUX power supplies on ali express. Though i have no clue what are some good enough Chinese brands. I know meanwell is a trusted brand. But i can't find where to find or look for meanwell 1000w/2000w or something close enough to meanwell quality or who sells them 2nd or brand new.These pictures below is what i have managed to find. I have little experiencewith 1000w/2000w adjustable power supply prices or where to seek decent quality and decent prices. Using it for a DC RC charger. Was going the ex server route but they are 12v and require a bit of time/skill to link up enough for 36v. Ta

author: dietert1
author_rank: Super Contributor
timestamp: September 20, 2022, 05:17:49 pm
content: COTEK makes power bricks with UART programming. I have seen 1.5 and 3 KW unit (AEK series). When using 800 W units i found them very good quality, except those small fans were a bit noisy.Regards, DIeter
Looking for a quad opamp rail to rail 3.3v - Page 1
Forum section: electronics / beginners

author: sean87
author_rank: Regular Contributor
timestamp: August 21, 2016, 10:37:26 am
content: Hi guys,I am looking for a cheap, Quad OpAmp chip which can be supplied from a single +3.3V and can amplify up to supply voltage (rail to rail).Something like LM324 but I think it is not rail to rail?Thanks!

author: bktemp
author_rank: Super Contributor
timestamp: August 21, 2016, 10:42:12 am
content: LMV324

author: Zero999
author_rank: Super Contributor
timestamp: August 21, 2016, 10:46:26 am
content: MCP604http://ww1.microchip.com/downloads/en/DeviceDoc/21314g.pdf

author: newbrain
author_rank: Super Contributor
timestamp: August 21, 2016, 12:38:57 pm
content: Quote from: Hero999 on August 21, 2016, 10:46:26 amStill Microchip, if a wider GBW product is needed (10MHz) with lower noise and offset:MCP6024.About 3dB more expensive, though.

author: Kalvin
author_rank: Super Contributor
timestamp: August 21, 2016, 01:47:41 pm
content: Edit: Sorry, no DIP packages available.TLV4316, GBW=10MHz, SR 6V/us, RRIO, 1.8V - 5.5V, $0.54/1ku.http://www.ti.com/product/tlv4316TLV4314, GBW=3MHz, SR 1.5V/us, RRIO, 1.8V - 5.5V, $0.48/1ku.http://www.ti.com/product/tlv4314TLV4313, GBW=1MHz, SR 0.5V/us, RRIO, 1.8V - 5.5V, $0.41/1kuhttp://www.ti.com/product/tlv4313TLV6004, GBW=1MHz, RRIO, 1.8V - 5.5, $0.38/1kuhttp://www.ti.com/product/tlv6004
Looking for a reasonable power grid model up to 500kHz - Page 1
Forum section: electronics / beginners

author: gustavrsh
author_rank: Newbie
timestamp: January 09, 2024, 08:22:24 pm
content: Hi! I'm working on Power Line Communications simulations and I'm having trouble modelling the low voltage power grid. I've found reference impedances for 50Hz, but I need a decent circuit model for frequencies up to 500kHz. I know impedance varies in time and frequency, but I need a ballpark model that could be used for comparing different power supply topologies with the presence of a signal from 0 to 500kHz.I know it's not a trivial question, but maybe the EMC nerds could help me. Any literature related to this is appreciated.Note: I'm not looking for s-params, characteristic impedance, etc; I'm looking for a actual model with an ideal voltage supply and resistances, capacitances and inductances. I'm using PSIM.

author: wasedadoc
author_rank: Super Contributor
timestamp: January 09, 2024, 10:58:42 pm
content: There are several situations including:1. Substation to premises.2. Within small residential premises.3. Within large residential premises.4. Within commercial premises using office type equipment.5. Within commercial premises using machinery.6. Topology. Ring or star?Etc, etc.
Looking for a replacement capacitor - Page 1
Forum section: electronics / beginners

author: FrankvHoof
author_rank: Contributor
timestamp: May 20, 2018, 10:32:05 am
content: I'm trying to replace this cap that was inside of an axel grinder and broke open circuit. It's an axial capacitor for AC, but it has 2 inputs & 2 outputs.I've been looking around sites like digikey, but I can't seem to find another capacitor like it.Does anyone know where I can get a replacement for this? Or would I be better off replacing it with 2 capacitors?

author: Brumby
author_rank: Unknown
timestamp: May 20, 2018, 10:54:45 am
content: How was it connected?

author: FrankvHoof
author_rank: Contributor
timestamp: May 20, 2018, 10:59:47 am
content: It was hooked up straight to the plug (coming from the wall-AC).Leaving it out means the grinder works (so I'm guessing it's used for filtering, and not having it might shorten the lifespan of the motor?)

author: FrankvHoof
author_rank: Contributor
timestamp: May 20, 2018, 12:11:21 pm
content: Here are some more pictures of the grinder for reference.It was hooked up at the back of the grinder, at the AC input, held by a little metal retention clamp(Yes, I know my camera sucks. It's an old Galaxy S2, new phone's in the mail.)(Yes I know I need to hook up ground before using it.)I've been finding it really hard to come across a dual-pole axial cap like this, does anybody have any ideas?

author: capt bullshot
author_rank: Super Contributor
timestamp: May 20, 2018, 12:24:50 pm
content: That's your typical EMC filter capacitor as they were made in former times. These wires are just "through" connections, there are no modern equivalents.You can leave it out (won't harm the grinder, but maybe disturb radio reception), or replace it with a modern X rated capacitor of same value. Connect it in parallel with the wires.

author: FrankvHoof
author_rank: Contributor
timestamp: May 20, 2018, 01:02:11 pm
content: So something like this?https://www.ebay.com/itm/Polyester-Safety-Capacitor-MKP-250V-275V-280V-0-1-0-33-0-47-1-2-2-22-47-nF-uF/252689533747?hash=item3ad5784b33:m:mshilaYABb0NfAQ34tBHWCAWith 330nF being the closest value to 250nF I could easily find.

author: capt bullshot
author_rank: Super Contributor
timestamp: May 20, 2018, 02:16:46 pm
content: Yes, 220nF would also do the job. The exact value doesn't matter too much here.
Looking for a replacement obsolete MOSFET - Page 1
Forum section: electronics / beginners

author: Dave Wave
author_rank: Contributor
timestamp: October 02, 2025, 01:24:50 am
content: I need to replace an obsolete N-Channel MOSFET SUB75N08-10.There is no direct replacement.Can someone help me pick a compatible replacement? I need a TO-263 package and a good quality part.Thanks!

author: Uunoctium
author_rank: Frequent Contributor
timestamp: October 02, 2025, 02:15:55 am
content: What about SQM60030E_GE3 from Vishay/Siliconix? TrenchFET, automotive specified, avalable at Mouser

author: Dave Wave
author_rank: Contributor
timestamp: October 02, 2025, 10:44:02 am
content: Thanks, nice part and good environment ratings!

author: Doctorandus_P
author_rank: Super Contributor
timestamp: October 05, 2025, 05:13:37 pm
content: Mosfets have improved quite a lot over the last 20 to 30 years. They can withstand more voltage, and carry more current. Threshold voltage is usually around 4V, but there are "logic compatible" FET's with a lower threshold voltage.For the rest, for fast switching, the gate capacitance is an important factor. But overall selecting a FET for switching applications is not very critical.
Looking for a replacemnt LCD for a Tele-Radio remote controll - Page 1
Forum section: electronics / beginners

author: littleMax
author_rank: Contributor
timestamp: April 06, 2020, 08:20:59 pm
content: Hello!I work in a repair shop of a trucking company. We have also some recycling and construction machines. One is a wood... chipper (but in big)It has a remote control that is made by the company "Tele Radio", it is an older version of this modell:https://www.tele-radio.com/products/tiger-g2/tiger-g2-transmitter-10x2-step-buttons-display-sil3-ple/One of the operaters manged to crack the LCD screen and i thought it would be easy to just buy a new LCD via mouser or similar. But i can not find a matching one. The main problem is that board which the LCD dot matrix solders to, is specialy made for/by Tele Radio and everythig has "Tele-Radio"-partnumbers. So im asking for much i think... but maybe you guys can tell me if it is possible to just source the LCD dot matrix?Pictures time:
Looking for a *scalar* signal generator - Page 1
Forum section: electronics / beginners

author: rfscalardna
author_rank: Newbie
timestamp: January 22, 2019, 11:42:38 am
content: Hi, I wishing for one of you to be of assistance. I am looking for a signal generator that:1) Programmable by C/C++/Python through software. Something like redpitaya2) Scalar3) Frequency range of 10,000hz (or lower) to Mhz rangeRedpitaya is all I could find but it's not scalar. Anyone?

author: kony
author_rank: Regular Contributor
timestamp: January 22, 2019, 07:15:51 pm
content: From what deduction does the scalar requirement originate from?

author: Doctorandus_P
author_rank: Super Contributor
timestamp: January 23, 2019, 12:41:26 am
content: I bought the cheapest version of the JDS6600, which goes from almost DC to 15MHz for EUR 60.It has an USB connector on the back which I have never used.It's not the best function generator ever, with it's R-2R network the output is quite noisy at low levels, but it delivers an amazing bang for the buck. For low levels you could use an attenuator on the output.The wallwart delivered with this function generator is crap though, but there is plenty of room inside for a little transformer with low capacitance to Mains and a LM7805.What does "Scalar" mean in the context of a signal generator?You may be able to do something usefull with a chip like the MCP4922.This is a resistor string ladder DAC which can be used in "multiplier mode". This means that it is not referencing from a DC voltage source, but from an externally applied signal and the output is divided by the resistor ladder.MCP4922 only has a 450kHz bandwidth though, but it should not be difficult to find chips with a higher bandwidht.

author: Mechatrommer
author_rank: Super Contributor
timestamp: January 23, 2019, 06:24:35 am
content: Quote from: Doctorandus_P on January 23, 2019, 12:41:26 ami guess it means normal signal generator, "NOT" vector on which VSG can provide IQ or phase accurate or defined modulator and SSG dont. when looking at the other thread where users testing the bode plot capability on their not so cheap killer in town scope, i remember in those days i programmed DDS 3x25 AWG to do the same with $400 Rigol DSO up to iirc 25-50MHz.

author: Doctorandus_P
author_rank: Super Contributor
timestamp: January 23, 2019, 01:33:14 pm
content: So I typed in:https://duckduckgo.com/html?q=scalar+signal+generatorand found:http://rheslip.blogspot.com/2015/08/the-simple-scalar-network-analyzer.htmlThen did a bit more reading:https://en.wikipedia.org/wiki/Scalar_(mathematics)And it all confirms Meatrommer's guess. A scalar is a imple number, and probably amlitude is meant in this context.That simple-scalar-network-analyzer project does look like a fun project, with impressive properties for such a low budget.Decent frequency range, complete with Python integration, and draws amplitude plots with TkInter. Looks like exactly what OP whishes for.Typing this post took more time than finding that project.
Looking for a similar chip to MIC29152WT. - Page 1
Forum section: electronics / beginners

author: igorbog
author_rank: Contributor
timestamp: February 10, 2012, 09:42:31 am
content: Hi .I'm looking for a similar ic to MIC29152WT. for this projecthttp://tgbuilds.wordpress.com/category/projects/diy-bench-supply/thanks

author: Bored@Work
author_rank: Super Contributor
timestamp: February 10, 2012, 10:33:21 am
content: The Linear LT1963A (adjustable version) looks similar. You have to compare datasheets to be sure.
Looking for a smaller keyed inline connector than using a standard JST part. - Page 1
Forum section: electronics / beginners

author: castingflame
author_rank: Regular Contributor
timestamp: July 18, 2020, 07:04:47 am
content: Hi allI have a requirement for an inline connector for one of my projects. At the moment I am just using a JST XH pair but it is too bulky.The connectors will only need to carry a maximum of 5v @ 50mA (actually 20mA) so lets say 250mW. The important thing is that it needs to be keyed so that it can not be connected incorrectly. With that in mind, I can not use Dupont/pin header type solutions. Additionally Dupont would end up being too bulky as they are quite long.It does not have to be 2.54 pitch, in fact, I would say that 2mm pitch would no doubt be preferable as the overall size would no doubt be smaller.In a perfect world I would like to be able to get them from AliExpress as I will need to get several hundred of these but if that is not possible and the parts are only available from conventional suppliers it will will still be considered.Cheers

author: MarkR42
author_rank: Regular Contributor
timestamp: July 20, 2020, 02:50:25 pm
content: There are similar, smaller pitch connectors from JST, down to 1.5mm, maybe 1mm pitch, they work in much the same way as the JST-XH,The only problem is you need a very small pitch crimping tool for some of those tiny sizes, and they're easily damaged

author: castingflame
author_rank: Regular Contributor
timestamp: July 22, 2020, 10:29:33 am
content: I've gone with a 2mm JST PH connector.
Looking for a SMD fuse, but which one? - Page 1
Forum section: electronics / beginners

author: tecneeq
author_rank: Newbie
timestamp: December 23, 2022, 10:02:27 am
content: I bought a Creality Ender 3 V2 for 80€ yesterday, the seller said he thought the display or mainboard was broken.Got it home, took out the mainboard and hooked it's USB port up to a powerbank. Things started to blink, the board was doing something. Hooked up the display, it lit up and worked. So then i took out my power supply, set it to 24v, but the board was dead.Looking closer, i saw what appears to be scorch or solder marks around F2, which should have been a self resetable SMD fuse, marked T20.So i bridged the fuse and the board booted up. Seems the fuse did what it was supposed to do.The problem is, i have no idea what replacement part i have to order. It probably protects the 3.3V voltage regulator for the STM32Fxx. What does the printed T20 mean?

author: PA0PBZ
author_rank: Super Contributor
timestamp: December 23, 2022, 11:27:45 am
content: That is a 2A PTC resettable fuse. Probably blown because some wires were swapped, read this:https://www.reddit.com/r/ender3/comments/pl79kq/blown_electronic_on_board_upgraded_from_114_to/[edit: picture added]

author: tecneeq
author_rank: Newbie
timestamp: December 23, 2022, 05:20:40 pm
content: Thanks, that's it!
Looking for a SMD version of a JST VH 3.96 - Page 1
Forum section: electronics / beginners

author: sschueller
author_rank: Newbie
timestamp: November 26, 2023, 12:30:59 pm
content: Hi everyone,I am looking for a SMD equivalent of a JST VH 3.96 like this one:I need 6 pin.Does anyone know where I can get them or what i need to search for? I know they do exist as I have LED panels with SMD versions of this connector but it probably has a different name.I first thought the LED panels I have just use the right angle version soldered to the PCB but this is not the case. The plastic on the SMD version touches the PCB which would not be the case if I soldered the right angle version to a PCB.Closest I found is:https://www.lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_Megastar-ZX-VH3-96-6PLT_C7429654.htmlbut that doesn't fit.Thank in advance.

author: findAround
author_rank: Contributor
timestamp: April 24, 2024, 05:13:31 am
content: Did you have any luck finding this connector? I'm looking for a similar one.

author: Smokey
author_rank: Super Contributor
timestamp: April 24, 2024, 05:19:07 am
content: I think this is the right pitch.https://www.digikey.com/en/products/detail/gct/BH010-06-C-0850-0840-0573-G/12819978You don't get the locking tab, but you could glue the thing in place and it would probably work.
Looking for a SMD version of a U2008B - Page 1
Forum section: electronics / beginners

author: pienari
author_rank: Regular Contributor
timestamp: April 24, 2024, 02:24:13 pm
content: I have repaired old Weller hot air station but haven't found U2008B smd.Can anyone tell is that part available anywhere in europe?.Ali-exp sells but i afraid of counterfeit parts.

author: xvr
author_rank: Frequent Contributor
timestamp: April 24, 2024, 05:53:15 pm
content: They are listed asobsolete. You will be very lucky if you could find any.> Ali-exp sells but i afraid of counterfeit parts.It's better, than noting

author: pienari
author_rank: Regular Contributor
timestamp: April 24, 2024, 07:49:07 pm
content: That part is hard to find and i think there is no other compatible part?.I asked few suppliers but they told part is eol.

author: Nominal Animal
author_rank: Super Contributor
timestamp: April 25, 2024, 12:20:25 am
content: So, the part numbers are U2008B-MFP, U2008B-MFPY, U2008B-MFPG3, U2008B-MFPG3Y, I belive? It looks like Atmel manufactured these in Heilbronn till 2008, with Telefunken Semiconductors GmbH & Co. KG continuing the manufacturing 2009-2012; so there might be both "ATMEL" and "TFK" branded genuine SOIC-8 ICs out there.Aside from eBay/AliExpress, rxelectronics.com, good-chips.com, veswin.com, depu.net all claim to have new old Atmel/Microchip ones in stock, but you'd need to request a quote.

author: pienari
author_rank: Regular Contributor
timestamp: April 25, 2024, 09:32:12 am
content: No luck with Rxelectronics.Thanks for your kind inquiry.It is regret to inform you that U2008B-MFPY is no stock and the product status is obsolete.Im still waiting to Veswin reply.
Looking for a software to analyse acquired data - Page 1
Forum section: electronics / beginners

author: glatocha
author_rank: Regular Contributor
timestamp: November 12, 2013, 09:00:31 am
content: Hi,not strictly electronics, but have no idea where else to ask. I am having also nothing from google (probably wrong asking).I am looking for a software for analysing acquired data. I have a table with thousands of rows and few columns of data. I would like software to plot it, have some markers like oscilloscope to get the value, maybe also calculate the differences in Y and X axis.I know very nice ibaAlalyser but it only works with the data acquired by ibaPDA.Excel graphs are nice, but can't take the values, no markers etc.Will be very thankful for any adviceGreetings

author: Balaur
author_rank: Unknown
timestamp: November 12, 2013, 09:08:25 am
content: Gnuplot.Lots and lots of it!

author: Kohanbash
author_rank: Regular Contributor
timestamp: November 12, 2013, 01:49:00 pm
content: QuoteWhy can excel not take the values? You can add extra markers by creating a new series for labels/markers.Also Octave is a nice tool for processing data and generating plots. Octave is a free tool similar to matlab.

author: Andy Watson
author_rank: Super Contributor
timestamp: November 12, 2013, 02:27:22 pm
content: Another vote for Gnuplot. And if that is too simple move on to Octave, or if you are really serious about stats, R

author: c4757p
author_rank: Super Contributor
timestamp: November 12, 2013, 02:37:51 pm
content: Mathematica only aboard your pirate ship, because you can't afford it. On the topic of things you can't afford, MATLAB. Both are awesome. Octave is a good, free sub for MATLAB.I wouldn't advise Gnuplot. Esoteric scripting, kind of a pain in the ass, and limited beyond plotting (not great for analyzing). Octave uses it to plot, IIRC, which is a better way in my opinion.

author: F4CPY
author_rank: Contributor
timestamp: November 12, 2013, 03:39:14 pm
content: What do you think about SCILAB:https://www.scilab.org/en/scilab/features/scilab/visualization

author: kfitch42
author_rank: Frequent Contributor
timestamp: November 12, 2013, 07:48:12 pm
content: octave (just like matlab, just cheaper):http://www.gnu.org/software/octave/If you are pythonically inclined then give SciPy/Matplotlib a try:http://www.scipy.org/

author: miceuz
author_rank: Frequent Contributor
timestamp: November 12, 2013, 10:06:44 pm
content: I use ipython notebook with inline pylab.
Looking for a switch that cut off the power when reaching a voltage - Page 1
Forum section: electronics / beginners

author: crozenfox
author_rank: Newbie
timestamp: August 20, 2024, 08:18:42 pm
content: Hi guys,I have a fridge in my car, unfortunately when I leave it on for 5 hours the battery becomes completely empty. The car battery is old (7 years).I'm looking for a switch that cut of the power when it reach a certain (low) voltage, so my battery will always have enough current to start the car. Is there any device switch with a small lcd screen showing the voltage ?I would like to buy it from Aliexpress.The fridge is a 5A 12VThnx.

author: Gyro
author_rank: Super Contributor
timestamp: August 20, 2024, 09:11:28 pm
content: Such devices are very common on Amazon, and therefore Ali too. You can get them with built-in voltage display or just buy a separate voltmeter module, also very common in LED - I don't know about LCD but the LED display current consumption is insignificant compared to a fridge.Just go and search for 'low battery cutoff' (or French equivalent).
Looking for a switch - Page 1
Forum section: electronics / beginners

author: Jimbz
author_rank: Contributor
timestamp: September 02, 2013, 11:44:02 pm
content: Greetings forum, I request assistance in finding out what a certain switch is called.Basically I require a mains switch that can be attached to a wall/ceiling that has a pulling chain on it to turn on/off a exhaust fan (wall mount) that will suck moisture out of the bathroom. I assume it has somekinda springing action in there, as one pull downwards will both be the on/off switch. Anyone has any clue what such a thing is called ? Or maybe a fan that already has a chain attached to it ?Thank you for reading, sorry if this does not fit the "begginer" section

author: Jimbz
author_rank: Contributor
timestamp: September 02, 2013, 11:46:47 pm
content: Actually nvm, turns out it wasnt all that hard to find, delete this thread if you may
Looking for a tool, but don't know the name of it - Page 1
Forum section: electronics / beginners

author: Gunhed
author_rank: Newbie
timestamp: December 31, 2019, 11:02:45 pm
content: Hello and happy new year!I'm looking for something, that can realign the feet of an IC again.Both sides are realigned at the same time.All google searches were fruitless and I cannot find it any more.Can anyone help out and name the darn thing for me please?Kind regardsMatthias

author: TopLoser
author_rank: Unknown
timestamp: December 31, 2019, 11:08:15 pm
content: Spiratronics IC Straightener Toolhttps://www.amazon.co.uk/dp/B0093Z7JH0/ref=cm_sw_r_cp_api_i_Ns9cEbW8JXJ35

author: Gunhed
author_rank: Newbie
timestamp: December 31, 2019, 11:22:16 pm
content: Thank you!That was exactly what I was looking for!No wonder I couldn't find it, with this crazy name!

author: JustMeHere
author_rank: Frequent Contributor
timestamp: January 01, 2020, 12:51:04 am
content: I've used a breadboard before to do this.

author: Jwillis
author_rank: Super Contributor
timestamp: January 01, 2020, 01:00:18 am
content: All this time I used a pair of pliers with tape on the jaws and theirs a tool for this?

author: Fraser
author_rank: Super Contributor
timestamp: January 01, 2020, 01:29:49 am
content: There are different versions of the “IC Pin Straightener” I have used both the plastic ‘squeeze’ type and the twin ball bearing types. Both work but the ball bearing design is more solidly constructed and works very well indeed. The Radio Spares unit I have covers both narrow and wide DIL chips by providing a double sided tool with a suitable spacing on each side. Radio Spares called the unit a “Lead setting tool” and I remember it being quite expensive.Pictures attachedFraser

author: ender4171
author_rank: Contributor
timestamp: January 03, 2020, 04:12:07 pm
content: That bearing style tool seems like it would be an easy thing to 3D print. I will have to model something up and share it back here!

author: tooki
author_rank: Super Contributor
timestamp: January 04, 2020, 09:20:52 pm
content: Quote from: ender4171 on January 03, 2020, 04:12:07 pmI’ve already seen 3D models online somewhere for those things. Do a little googling, now that you know it’s called an “IC straightener”.

author: GreyWoolfe
author_rank: Unknown
timestamp: January 04, 2020, 09:37:17 pm
content: I have the same double sided plastic unit that Frasier uses. It received a lot of use back in my ITT Technical Institute days and it works very well, plus they are cheap. Don't forget an IC extractor tool, they come in handy also.
Looking for a user manual, MCP SG1639A Function Generator - Page 1
Forum section: electronics / beginners

author: adrianarcher
author_rank: Contributor
timestamp: May 16, 2018, 07:17:50 pm
content: Hi,I'm looking for a user manual for the MCP SG1639A/B.It was also sold under the Tekpower and Sinometer brands, and as the Lafayette FG-39B.I did the regular google searches and emailed MCP and Tekpower but didn't get anything back yet.Anyone have any tips about where I could find a manual?Thanks,Adrian

author: adrianarcher
author_rank: Contributor
timestamp: May 18, 2018, 03:37:58 pm
content: I finally received a message from MCP, and they emailed me a .doc file of the manual. The english isn't the best but I have cleaned it up and attached a PDF here, in case anyone in the future wants a copy.Adrian
Looking for a variable DC power supply kit - Page 1
Forum section: electronics / beginners

author: Gravity1337
author_rank: Newbie
timestamp: October 12, 2013, 06:23:27 am
content: Are there any recommended kits for a variable DC supply that I can build myself? I'm not quite at a spot where I can design my own yet and want to have more flexibility than an ATX conversion. I think something in the 12-15V and 500mA-1A range should be more than enough for my needs. I'd love to learn a bit by building it but wondered if there is a "this is the one to get" kit out there.

author: mtdoc
author_rank: Super Contributor
timestamp: October 12, 2013, 06:30:07 am
content: No personal experience with it, but I've heard good things aboutthis Elenco power supply kit

author: Gravity1337
author_rank: Newbie
timestamp: October 12, 2013, 06:34:18 am
content: That's definitely the direction I'm looking for. Of course meters and current limiting would be super great, but this is certainly a start.

author: mtdoc
author_rank: Super Contributor
timestamp: October 12, 2013, 06:44:29 am
content: Easy to add an inexpensive lcd panel meter to that kit - as others have done. Adjustable current limit? - well, that's another matter...

author: Unknown
author_rank: Unknown
timestamp: October 12, 2013, 07:28:18 am
content: For that money I'd rather buy a cheap Chinese power supply from manufacturers like Mastech and Korad.This power supply, for example. Reviews of this seller and of Mastech power supplies have been reasonably positive (for their price), but I have no idea about the Volteq branded units. Forum user Saturation seemed quite happy with his Mastech-branded unit.This would at least be a proper bench power supply with panel meters and variable current limit.

author: mtdoc
author_rank: Super Contributor
timestamp: October 12, 2013, 07:41:16 am
content: Quote from: alm on October 12, 2013, 07:28:18 amAgreed. But he did say he wanted to build a kit....If learning is the goal, I'd say buy the cheap Chinese supply, a breadboard and some components. Breadboard a a few power supply designs and go from there...

author: Wytnucls
author_rank: Super Contributor
timestamp: October 12, 2013, 08:02:13 am
content: I would go with the Elenco if you want to get yours hands dirty and learn a little on the way. Plenty of space inside to modify it later to suit your requirements.You could also build your own from scratch without much difficulty, using parts from obsolete electronic appliances in the house.If you need current limiting functionality straight away, then the Chinese power supply is the easiest solution.

author: Gravity1337
author_rank: Newbie
timestamp: October 12, 2013, 08:19:06 am
content: Thanks for the input. Those Chinese supplies are hard to beat for the price for sure. I'd really love the uSupply build that Dave was doing a while back, but it seems to have stalled somewhere along the way. I guess you could call that the "dream kit". Granted, something simpler for starters would probably be better for me anyway.
Looking for a very small Bluetooth receiver with amplifier - Page 1
Forum section: electronics / beginners

author: subspace
author_rank: Newbie
timestamp: February 25, 2025, 09:27:06 pm
content: Hi I am looking for a very small Bluetooth audio receiver with a a built-in amplifier, preferably no bigger than about 15mmx40mmx4mm, something that could power a small speaker salvaged from a mobile phone or laptop. I thought I had found what I was looking for herehttps://www.ebay.co.uk/itm/176827839202but it appears to only output line-level outputs in spite of the title.Edit: I think it is actually higher than line-level but still somewhat disappointing in terms of loudness. Nowhere near as powerful as my DFPlayer mini which is about the same size.
Looking for a very small cylindrical stepper motor with max amount of torque - Page 1
Forum section: electronics / beginners

author: Marc Adamson
author_rank: Newbie
timestamp: April 25, 2021, 12:04:28 pm
content: Hello,I'm looking for a stepper motor to fit into a cilynder with a max diameter of 22mm or so. I'm looking for a holding torque of no less than around 15 N-cm. The best contender I've found so far is this Faulhaber stepper motor:https://www.globalspec.com/specsearch/partspecs?partId={CE180744-C899-4535-89F0-02E4D8D069FF}&comp=38&vid=340&srchwebhitid=876924677&srchitem=6&sqid=67785705It's quite an expensive option, and I was wondering if anyone new of other models that could fulfil my needs?Also, the Faulhaber AM 2224 has a step angle 15 degrees (24 steps per revolution). I'm looking to microstep it in order to achieve a higher resolution. I understand that microstepping reduces torque. Is there any other consideration when choosing a stepper motor with a fairly low number of steps per revolution?Many thanksMarc

author: wizard69
author_rank: Super Contributor
timestamp: April 25, 2021, 09:04:39 pm
content: You will likely need to add a gear box if that motors resolution is too low. As for other steppers, you will have to shop around, off the top of my head I don’t know of a specific product. Note too that gear boxes will impact your max velocity but might afford you more stepper options.

author: Marc Adamson
author_rank: Newbie
timestamp: April 26, 2021, 08:18:03 am
content: Thanks Wizard69,I hadn't considered using a gear box and that would definitely afford more stepper options with increased resolution and torque, especially since I don't need too much velocity.
Looking for Alcatel OEI-3601005-0A00A01 information/datasheet - Page 1
Forum section: electronics / beginners

author: samsagaz
author_rank: Contributor
timestamp: March 09, 2016, 10:41:59 pm
content: Hi guys, i have an old Rectifier 48V 12A used in telecom, this come with an 15+2 Pins connector. Someone have the pinout info of this rect?Its an Alcatel OEI-3601005-0A00A01 i searched google without luck :/i just found +12 in pin 1, 7 and 9 and 0,4 in pin 13.
Looking for an amplifier module to drive A piezoelectric ceramics （PZT) - Page 1
Forum section: electronics / beginners

author: alleycat
author_rank: Newbie
timestamp: October 08, 2023, 11:17:27 am
content: I am an graduate student from China and new to this community. Now looking for an amplifier module to drive a piezoelectric ceramics（PZT) . PZT will be work at 1-10MHz (or 1-5MHz will be OK)，~25Vpp.I have a NF WF1974 signal generator producing DC-30MHz 10Vpp signals.Apart from Feeltech (FPA series) and Juntek (DPA 2698) , what else can I choose？DIY will not be an option and amplifier from companies outside China will be better.Thanks for your patience and friendly responses.
Looking for an oscilloscope. - Page 1
Forum section: electronics / beginners

author: sahko123
author_rank: Frequent Contributor
timestamp: August 24, 2016, 11:50:02 pm
content: I'm making this thread so that people could post about oscilloscopes that they are looking for or that they are selling so that those looking to sell or buy one, can buy or sell quickerThere are a lot of people on this forum that are new to electronics who are looking to buy their first scope and people who are trying to sell there old scopes so this is where they meet!Hope this is of some help to people searching to buy or sell a scope(I am one)

author: MK14
author_rank: Super Contributor
timestamp: August 24, 2016, 11:56:25 pm
content: There is already an official place for doing such transactions, here...https://www.eevblog.com/forum/buysellwanted/
Looking for automotive oscilloscope... Any ideas?  - Page 1
Forum section: electronics / beginners

author: Pcaiman
author_rank: Contributor
timestamp: May 25, 2019, 12:02:52 pm
content: Hi forum, i looking for automotive oscilloscope, the principal idea is for work in cars/trucks and motorcycle, and need that be handheld.The first option for my was fluke 98 automotive, but the price in Ebay 1000 usd for 30 years old tool is not choice for me.The second option is hantek 2d82 automotive, but i read a topic in eev and describe the series 2000 like a toy...https://m.es.aliexpress.com/item/32967310745.html?trace=wwwdetail2mobilesitedetail&spider=y&productId=32967310745&productSubject=Hantek-2D82auto-4in1-handheld-automotive-oscilloscope-80Mhz-digital-250MSa-s-portable-3in1-2c42-2d72-2d42-2c72Please Any ideas

author: TK
author_rank: Super Contributor
timestamp: May 25, 2019, 12:42:21 pm
content: micsig released the ATO1102 and ATO1104 automotive portable tablet format oscilloscopes.

author: digsys
author_rank: Unknown
timestamp: May 25, 2019, 12:52:31 pm
content: I know it's not a handheld, and for all my vehicle work, I gave up on those and use an OWON SDS8102V (cheaper ones are SDS7102 etc etc)I'd never go back - features / price / screen size etc etc

author: garethw
author_rank: Regular Contributor
timestamp: May 26, 2019, 06:49:06 am
content: We are going back some time, but, I used to have a Snap-on Vantage. It was a battery powered 2 channel automotive scope. You might be able to pick one up on eBay.

author: Laszlo
author_rank: Contributor
timestamp: May 27, 2019, 05:49:32 pm
content: I second TK's opinion. Just buy a micsig, and you won't regret it.Hantek is also an option but I was not impressed with the models I've seen from that brand.I've bought my micsig 2 channel oscilloscope for 200 gbp from aliexpress and they shipped it in a week.Sent from my S60 using Tapatalk

author: Ice-Tea
author_rank: Super Contributor
timestamp: May 27, 2019, 07:01:57 pm
content: Tektronix THS720 series?

author: Laszlo
author_rank: Contributor
timestamp: May 28, 2019, 07:09:10 pm
content: Tektro is nice, but if budget not an issue then why don't you treat yourself with one of these:Fluke 125B.Or if you have a particularly generous budget, go and buy the fluke 190.We got one at work and it's nice. But, not nearly as nice as my micsig scope. Also its user interface isn't that great either. But it's fluke so the input protection is quality.Sent from my S60 using Tapatalk
Looking for calibration assistance in Philadelphia area - Page 1
Forum section: electronics / beginners

author: Bootalito
author_rank: Unknown
timestamp: January 19, 2018, 02:00:02 am
content: I completed a 5V precision reference project (ref:https://www.eevblog.com/forum/metrology/5v-precision-voltage-reference/). My intention was to use a customers metrology lab to calibrate it as close to 5.00000V as posible with the 20 turn pot inside. However I found out that their metrology lab is not equipped with anything over a 4.5digit DMM (Basically their "metrology lab" is more of an in-house logistical service to outside calibration labs).So I'm approaching the 1000h burn in period with nothing better than a BM867s and a BM257 to calibrate with, which of course is no calibration at all. So I'm looking to meet someone in the Philadelphia or Lancaster PA area who has 6.5d(or better, 7.5d preferred really) meter that is calibrated or at least have a high degree of confidence in, that I could impose upon to complete the last leg of my little DIY project. I really just need to turn on a meter and my project for 15min to warm up, then adjust a pot.I live west of Philadelphia about 50min, and work west of Philadelphia 35min, but of course would be willing to travel an hour or two. Please PM me, or email me TerryJMyers AT gmail.com. Thanks again!
Looking for cheap yet reliable socket and connector for 50 high current signals - Page 1
Forum section: electronics / beginners

author: sean87
author_rank: Regular Contributor
timestamp: May 09, 2017, 11:38:29 am
content: I am working on a simple project that requires some high-current signals to be passed between 2 PCB's in a 1-meter distance. There are in total 50 signal wires in 2 channels (channel A is 26 wire, channel B is 24 wires). There are about 50 signal wires to be connected between these boards. I have already purchased the wires, and they are AWG18 or 16...or should I say a tad bit thicker than your normal jumper wire, to make sure the 1A current would not be a problem in long run.THE PROBLEMI can not figure out what would be the best through-hole socket and its matching connector for this job. It should have the following properties:- Minimum 1A rated- It should have locking mechanism- The matching connector should allow easy installation of AWG18 wiresWHAT SO FAR?I am thinking about 3x20 pin ATX power supply connector and socket, just like what you find on a PC motherboard:Unfortunately, I could not find this item on digi-key or Farnellmaybe you can helo me to find it on those websites?Furthermore, I really would like to know if you might have a better idea, please let me know the name/picture or item id of the socket and matching connector that you think would do better than that ATX PSU connector!Thanks!

author: ebclr
author_rank: Super Contributor
timestamp: May 09, 2017, 11:42:31 am
content: https://pt.aliexpress.com/item/2pcs-24Pin-24-Pin-Power-Supply-PCB-Solder-ATX-L-Angled-Plug-Connector/32614609004.html?spm=2114.02010208.3.2.ZaDH41&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10065_10151_10130_10068_436_10136_10157_10137_10060_10138_10155_10062_10156_10154_10056_10055_10054_10059_10099_10103_10102_10096_10147_10052_10053_10107_10050_10142_10051_10084_10083_10080_10082_10081_10178_10110_10111_10112_10113_10114_10181_10037_10183_10182_10185_10033_10032_10078_10079_10077_10073_10070_10123,searchweb201603_4,ppcSwitch_5&btsid=405f20b6-a00e-4a5f-8871-2b3b5cd774de&algo_expid=f2dcceae-1aa7-47c7-b3e0-65c53f3063ea-0&algo_pvid=f2dcceae-1aa7-47c7-b3e0-65c53f3063ea

author: ovnr
author_rank: Frequent Contributor
timestamp: May 09, 2017, 11:51:10 am
content: If all you need is 1A per pin, just use normal 2.54mm headers.If you want something more substantial, I quite like the Micro-Fit connectors:https://www.digikey.com/product-detail/en/molex-llc/0430452412/WM4716-ND/531416Available from 2-24 pins per connector.If you want ATX-style connectors, trythis search.