hybridfree/eevblog-posts huggingface dataset:
Custom Firmware for RuiDeng Riden Power Supply WIFI Modules - Page 1
Forum section: electronics / testgear

author: LucaDev
author_rank: Newbie
timestamp: November 18, 2022, 08:28:59 am
content: Inspired by UniSofts custom firmware for the Riden RD60xx Power Supplies I wanted to have a look at the WIFI Module. To be honest: I hate the OEM software - it feels outdated and thrown together. Besides that I hate having to specify the IP of the computer/phone which will control the power supply upfront in a IMHO very over-complicated and buggy way.Instead I first created a fully featuredesphome.ioconfiguration for the ESP8266 that powers the WIFI module. Using ESPHomes included webserver component I am able to control the power supply from any device (yay) with a very rugh webinterface (nay). I also added some additional features like automatic network time syncronization on bootup (Who has those CR1220 for the RTC anyway?!).I'm currently working on a custom webinterface which will run as a esphome component and replace the default webserver with a fully featured and responsive web interface.I have a couple of questions for those interested:1) Are you interested in me sharing the esphome configuration without the custom webinterface and a "how-to flash the WIFI module" upfront? (It's easy. You need a USB to serial converter and a paper clip)1.1) Anybody interested in a DIY Wifi Module tutorial?2) If you're interested in using the webinterface I'm currently working on: What features are a must have? What does the perfect webinterface look like for you? Im neither a web developer / designer nor a professional electricial engineer by any means so design ideas would be great!It's my first post on here - I'm sorry if this is the wrong catergory for my post. @Mods: Feel free to move it in that case.

author: ranseyer
author_rank: Newbie
timestamp: January 20, 2023, 07:40:47 am
content: Very cool idea. Did you had an progress, or is there a git/webpage for this ?
HP3460A 3460B - Page 1
Forum section: electronics / testgear

author: 5065AGuru
author_rank: Frequent Contributor
timestamp: January 19, 2023, 05:53:19 pm
content: Hi, One of the first high accuracy DVMs I used back in the day. I've been checking on eBay for a couple years now and have never seen one! Were they that rare or did they all get scrapped?Cheers,Corby

author: Kleinstein
author_rank: Super Contributor
timestamp: January 19, 2023, 06:38:32 pm
content: I would not expect a large number of these build. They were likely quite expenside and the 3455 came out only some 5 years later.I don't think that many got scrapped (except for the military of cause) - more like a collectors item relatively early and not longer in real use a long time.

author: factory
author_rank: Super Contributor
timestamp: January 19, 2023, 07:46:59 pm
content: There is one that has been on ePay.de for far too long*, might be the high price, it's the H04 version (1,200,000 count).eBay auction: #113017786447*since at least 26 Aug, 2018 according to the listing revision summary.David

author: Kleinstein
author_rank: Super Contributor
timestamp: January 19, 2023, 08:31:31 pm
content: A slight surprize to find such a meter in Germany. Usually there are only few if the better HP / Fluke and the like used meters available in Europe and shipping from the US makes it quite expensve.Here it looks like the other way around. Probably easier to sell in the US and a very limited market in Europe for a more collectable than usable meter, though the specs are not that bad.Definitely an impressive meter for it's time.At that age one may have to check if it contains a mercury reference cell, as shipping these is illigal with many carriers.

author: MadTux
author_rank: Frequent Contributor
timestamp: January 19, 2023, 08:36:07 pm
content: Weird, dude on ebay has a perfectly working Fluke 5440B and an uncalibrated DVM.First thing I'd do is to calibrate that damn thing, maybe it would sell more easily then, for 1200€

author: Kleinstein
author_rank: Super Contributor
timestamp: January 19, 2023, 09:23:48 pm
content: Chances are the calibration could be via old style trimmers. With the value that for off, chanes are the trimmer range would not be sufficient. It could also be more like a repair (e.g. supply hum).A more or less working condition would be nice, but a calibration is not really needed.

author: factory
author_rank: Super Contributor
timestamp: January 19, 2023, 10:09:07 pm
content: Quote from: Kleinstein on January 19, 2023, 08:31:31 pmThe reference is a 6.2V Zener in an oven.David
Rigol DS1102e Scope Locked & Cannot Unlock HELP! - Page 1
Forum section: electronics / testgear

author: MaverickNH
author_rank: Newbie
timestamp: January 19, 2023, 08:13:42 pm
content: I installed the latest firmware on my Rigol DS1102e Scope. It rebooted with the keyboard locked and the unlock process doesn’t work, nor will it detect a USB Drive to reinstall the FW. Is there a secret factory reset process?Rigol Technical Support had no answer…out of warranty with $250 minimum fee plus shipping is too much.Thanks!
Is it possible to use Riglol to unlockDP831 PSU - Page 1
Forum section: electronics / testgear

author: 2N3055
author_rank: Super Contributor
timestamp: July 01, 2016, 04:12:55 pm
content: Hello !I searched for quite a while and couldn't find any information whether Rigol DP831 can be unlocked with riglol same as DP832...They share the same firmware and all...Thanks for the answers !!P.S. I'm new to the EEVblog so please be patient till I learn the ropes...

author: TurboTom
author_rank: Super Contributor
timestamp: July 01, 2016, 11:15:04 pm
content: At least DP811 works. I guess that's true for all the DP800 series.Cheers,Tom

author: 2N3055
author_rank: Super Contributor
timestamp: July 02, 2016, 07:54:02 pm
content: Thanks a lot Tom!!If I find out for sure I will post the info...Take care!!Sinisa

author: smile
author_rank: Regular Contributor
timestamp: December 29, 2016, 06:54:13 pm
content: Quote from: 2N3055 on July 02, 2016, 07:54:02 pmWell did i work on DP831?

author: 2N3055
author_rank: Super Contributor
timestamp: December 29, 2016, 07:40:28 pm
content: Sorry for that, I forgot to post..Yes, it worked flawlessly.. Also, I would recommend to put keys on a USB stick ( there is Rigol document explaining it), and just load them.. It is much easier than entering them trough DP UI...Have a good one!!

author: radef
author_rank: Newbie
timestamp: January 18, 2023, 06:06:42 pm
content: So you were able to turn a DP831 into a DP831A, correct? (or into 832?)

author: thm_w
author_rank: Super Contributor
timestamp: January 19, 2023, 12:22:35 am
content: Quote from: radef on January 18, 2023, 06:06:42 pmYes 831A.We have many threads:https://www.eevblog.com/forum/testgear/need-help-hacking-dp832-for-multicolour-option/425/Use the print button and search for DP831.

author: radef
author_rank: Newbie
timestamp: January 19, 2023, 05:18:45 pm
content: Thanks for confirming.And many thanks for the pro-tip:print button then searchThat's excellent!
Signametrics SMU2055 6-1/2 Digit DMM Software - Page 1
Forum section: electronics / testgear

author: I_V_O
author_rank: Newbie
timestamp: January 19, 2023, 08:30:27 am
content: Hello ALL,I have a Signametrics SMU2055 6-1/2 Digit DMM. It has a USB interface.Keysight BenchVue will talk to this DMM if I have the proper USB driver.Windows 10 does recognize the instrument connected to USB but can not find any drivers.Same problem with Labview instrument drivers. I can not get past the USB connection.I do not necessarily need the BenchVue or Labview if a standalone app displays the instrument panel.Any thoughts would be much appreciated.Thank you

author: coromonadalix
author_rank: Super Contributor
timestamp: January 19, 2023, 11:21:32 am
content: Not sure if they are USBTMC driver compatible ?Or this river if you click on : "Download the Driver File only - Free" but its the same as the next keysight link ....?https://www.driverguide.com/driver/detail.php?driverid=1824439&auth=At82snaUidNtrCvtF7wFYmllar0f3%252BrewfY6ssl80ASil5fBMpx%252FQyeu%252FV8jsDzPdS4UWO1B%252BDbpO%252BSNCBN0cMwF%252FY07zaLamjWuoR5t5GaB3ZyVULzGc7roGuG9Z1p3https://www.keysight.com/zz/en/lib/software-detail/driver/signametrics-pxidmm-instrument-drivers-for-smu2060-series-dmms-2148786.htmlyou need to be registered for downloading it ...Signametrics drivers are a pain in the @%^^% to get
Fluke 91 Series II? - Page 1
Forum section: electronics / testgear

author: wd5jfr
author_rank: Regular Contributor
timestamp: January 18, 2023, 02:51:10 am
content: Bought one at a hamfest and it should be useful. Works well on all the functions I've been able to test (confirmed with my Fluke 189II) but I'm curios why I have to use a scope probe to measure voltages over 3 volts rather than the regular test leads or am I using it incorrectly? It didn't have a probe so I'm using a Tektronix P6100 and it appears to be making connection with the red non-metallic BNC input. If using the recommended PM8918 probe is better I wonder if anyone has a surplus one for sale and also interested in a DEMO BOARD and protective surround case.ThanksHank

author: bdunham7
author_rank: Super Contributor
timestamp: January 18, 2023, 03:28:46 am
content: Quote from: wd5jfr on January 18, 2023, 02:51:10 amThe banana jacks are intended for ohms, diode, continuity, temp and external shunt functions. All normal voltage functions are through the BNC connector with a suitable probe.https://assets.fluke.com/manuals/scopemt2umeng0000.pdf
Getting acquisition dumps / Reading DAV files [from Multimetrix 2025 DSO] - Page 1
Forum section: electronics / testgear

author: antoine22
author_rank: Newbie
timestamp: November 24, 2022, 10:09:34 am
content: Hi,I've seen a few topics under metrology about oscilloscopes in general, hopefully this is the right place, otherwise please let me know.So, I've a Multimetrix DSO (2025 model, I agree that it may not be a well known one, but these days the innards of many instruments are the same, just branded differently),it can save data to USB as CSV or DAV files.I have done pretty basic DSO stuff, capturing some one shot data at slow time base, putting it into "stop", zooming in the signal by changing the time base and time offset. So far so good.I saved the data to CSV but I notice the files have only 16K points, so I'm not getting all of the signal I can explore on the scope itself.The signal is not periodic so I'm sure the data must be in memory somehow.Question: Does that kind of behaviour rings a bell to anyone ? Considering I can zoom into the signal, there must be many more points somewhere in the scope's memory, right ?I also saved to another format, .DAV, and the file is a bit larger, but still under 64Kbytes, and does not look compressed, so still may be lacking points, and I did not find how to read it anyway .Am I not understanding something basic about how DSO work ?Thanks for your help !: by searching for .DAV format I arrived here:https://siglentna.com/operating-tip/oscilloscope-binary-data-format/and then herehttps://siglentna.com/wp-content/uploads/dlm_uploads/2021/09/How-to-Extract-Data-from-the-Binary-File.pdfbut the format does not match my dumps.

author: antoine22
author_rank: Newbie
timestamp: November 30, 2022, 03:57:15 pm
content: Nobody ?Any suggestions at all ? Did I ask the question wrong ?

author: iMo
author_rank: Super Contributor
timestamp: November 30, 2022, 04:04:07 pm
content: There is a better section to ask your question - Test equipment, for example..

author: Andy Watson
author_rank: Super Contributor
timestamp: November 30, 2022, 04:26:22 pm
content: Quote from: antoine22 on November 24, 2022, 10:09:34 amBut it only has an "Acquisition memory depth 16K pts"Can you change the display to dot mode ? I suspect that the scope is joining the dots when you zoom-in.

author: antoine22
author_rank: Newbie
timestamp: January 19, 2023, 07:33:41 pm
content: Quote from: Andy Watson on November 30, 2022, 04:26:22 pmThanks for your reply and sorry for the late reply, got caught up in job insecurity...I need to get the setup again to try, but assuming that the scope joins the dots, would it be reasonable to expect that those same dots would be dumped to CSV ?The CSV is totally flat (aside from quantisation noise), while scrolling horizontally I can get to the portion where the signal is, and visualise it properly.
Upload waveform to Rigol DG811 using SCPI - Page 1
Forum section: electronics / testgear

author: seackone
author_rank: Newbie
timestamp: January 17, 2023, 04:13:17 pm
content: I recently bought an Rigol DG811 AWG and I try to upload custom waveforms to the device. It works with rigol ultra station. I also managed to create my waveforms in matlab and export them to an *.csv file (with the correct header information) to an usb stick. But is there any chance to direct upload my waveforms to the device using SCPI commands? I guess there is a solution with::MMEMory:DOWNload:FNAMe:MMEMory:DOWNload:DATAhttps://iosignal.fi/wp-content/uploads/DG800_ProgrammingGuide_EN.pdf(page 2-37)But I have no Idea how to use it. Do you have maybe an example for me?best regards
Owon XDM3051 & Siglent SDM3055 bench multimeters: two of a kind? - Page 1
Forum section: electronics / testgear

author: RobertPS
author_rank: Contributor
timestamp: May 01, 2019, 02:03:05 am
content: Taking apart an Owon XDM3051, I was surprised to find an almost identical acquisition board compared to the Siglent SDM3055.Was this some kind of joint development? Or did they shop at the same source? Who knows.It's funny to see how Owon owonised it with some of their own components and their standard case and interface.Owon puts the digital brain behind the front panel and uses a separate interface board. Siglent combines the two.The voltage reference used is a MAX6325CSA. The fan is noisy and I will replace it or remove it.

author: pfabri
author_rank: Newbie
timestamp: January 16, 2023, 02:23:19 pm
content: Did you go ahead with replacing/removing the fan? If so, I'd be really interested to hear about your findings. Thanks a lot!
Full (old) Keithley product catalog(s) - Page 1
Forum section: electronics / testgear

author: MrYakimovYA
author_rank: Regular Contributor
timestamp: January 15, 2023, 02:21:41 pm
content: Hello everyone!I can't find full old (not acquired by Tek) Keithley product catalog(s). I'm just interested what measurement equimpents were produced by this company.I know about DMMs, electrometers, voltage/current sources, SMUs. I suspect there were something else. Maybe some amplifiers, filters and so on.I'd be appreciated just for only plain text list by categories, for example:DMMs:Keithley 196SMUs:Keithley 236Electrometers:Keithley 617Picoammeters:Keithley 480, 486, 487.

author: alm
author_rank: Super Contributor
timestamp: January 15, 2023, 04:49:37 pm
content: I have digital copies of Keithley catalogs from 1983, 2011, 2013 and 2014 that I downloaded at some point, for example seehere, and a not quite complete set of paper catalogs from 1966 until 2002 that I bought on eBay as a lot a while ago. Some of them included price lists. I don't have the time or equipment to scan them, but let me know if there's something specific you want to know.

author: MrYakimovYA
author_rank: Regular Contributor
timestamp: January 16, 2023, 06:21:37 am
content: I't hard to say something specific I want to knowBut I try. I'm interested in amplifiers (DC...at least 100 kHz), filters (LPF, HPF, Bandpass like Stanford Research SR6xx programmable filter), precision or low noise power supplies. If only there are such equimpent...

author: alm
author_rank: Super Contributor
timestamp: January 16, 2023, 10:07:37 am
content: I know they had some low-current amplifiers, low-current sources and high voltage power supplies. Did you check the 1983-1984 catalog? Based on what you learned from that, around what year would you want me to check? What models did you already find?

author: tooki
author_rank: Super Contributor
timestamp: January 16, 2023, 10:23:46 am
content: The biggest collection of Keithley documentation I’m aware of ishttps://xdevs.com/doc/Keithley/It hashttps://xdevs.com/doc/Keithley/Catalog/Keithley1983-84_Catalog_text.pdfAt minimum, the list of folders gives you an extensive list of model numbers you can Google.

author: MrYakimovYA
author_rank: Regular Contributor
timestamp: January 16, 2023, 10:48:36 am
content: Quote from: alm on January 16, 2023, 10:07:37 amYes, I looked at 1983-1984 catalog. I found some equipment that are the most interesting for me:1. Kithley 220 - Programmable Current Source.2. Keithley 230 - Programmable Voltage Source.Also I found Keithley 225, 227, 261, 247 - voltage and current sources; Keithley 427 - high speed current amplifier.Unfortunatelly, no filters, no general purpose amplifiers.
Kode TIA Model 2001 ? - Page 1
Forum section: electronics / testgear

author: wd5jfr
author_rank: Regular Contributor
timestamp: January 15, 2023, 09:10:10 pm
content: Can't find any info on this other than it's a disk and magnetic tape drive tester. Is anyone familiar with it and ca nit possibly have any other use than salvage?thanksHank
Unlocking late unit SDG2042X - Page 1
Forum section: electronics / testgear

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 11:18:24 am
content: Is it possible to unlock a late manufacture SDG2042X to extend the frequency range upwards? I went through the previous threads I could find on this topic but although I am able to login to the SCPI Instrument screen via Putty, entering the commands does not result in being able to view or edit any data, no data appears on the screen to be able to scroll down to using the arrow. I also found that it is not possible to roll back the firmware to versions 15R2 or 16R2, only as far back as 17R5. Having said that, i'm apparently able to login via Putty using any of the later firmware files including 37R3. It simply doesn't respond with any data to edit. Screen print attached.

author: tautech
author_rank: Super Contributor
timestamp: January 15, 2023, 11:42:52 am
content: Oh really, just download the programming guide:https://int.siglent.com/u_file/download/22_08_26/SDG_Programming%20Guide_PG02-E05A.pdfP12 gives you all you need.

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 12:10:17 pm
content: Thanks, but same problem

author: tv84
author_rank: Super Contributor
timestamp: January 15, 2023, 12:30:36 pm
content: In a SCPI "shell" like you have you can ONLY issue SCPI commands.That's not a linux shell!

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 01:05:05 pm
content: Thanks, so I need to be using a linux shell. Any suggestions for running one under Win 7? Or am I looking at a Linux PC/lappy to run it.

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 01:36:46 pm
content: I just tried Cygwin (inetutils version) but no joy so far

author: Martin72
author_rank: Super Contributor
timestamp: January 15, 2023, 03:50:22 pm
content: When you want to upgrade it to 120Mhz, just do this:https://www.eevblog.com/forum/testgear/siglent-sdg2042x-hack-door-closed/msg4599439/#msg4599439

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 04:08:19 pm
content: Thanks. I think that is for the SDS2000X scope? I have the SDG2000X Gen

author: Martin72
author_rank: Super Contributor
timestamp: January 15, 2023, 04:45:31 pm
content: Hi,I know...Look again at my post there, I´ve upgraded my SDG2042X, not a scope.

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 07:23:34 pm
content: Thanks, i'm not sure I follow that approach or can see where the script used is, but I will keep it in mind for an attempt if the method i'm trying fails.

author: Martin72
author_rank: Super Contributor
timestamp: January 15, 2023, 07:27:27 pm
content: It´s so easy that even I could do it...

author: kloss
author_rank: Contributor
timestamp: January 15, 2023, 08:39:35 pm
content: Do I need Python? I have never used that
Hantec Sale ?? - Page 1
Forum section: electronics / testgear

author: Geektronix
author_rank: Contributor
timestamp: January 15, 2023, 02:09:24 am
content: Anyone got a line on a place(s) that put Hantek gear on sale? Looking for a low-cost oscilloscope, probably a DSO2D10. Lowest price I've seen so far is on Amazon.

author: Algoma
author_rank: Frequent Contributor
timestamp: January 15, 2023, 05:36:26 am
content: Aliexpress or Banggood are usually the best sources for sales, depending on time of year.usually $100 less than Amazon,. I even had mine pass customs without the usual extras you'd pay with amazon anyway.This was the store I ordered mine from was "Hantek Official Store":https://www.aliexpress.com/item/1005001844918818.htmlDHL shipping though, eww. Might be worth searching for a few better sales from other vendors.Avoid any DHL shipping to Canada, its fast, but they LOVE to collect extra fees and taxes, and delivery fees.. and processing fees.. and extra bonus fees. Then they add taxes to their fees.. and another fee to collect the taxes.. Their hidden fees they add post-shipment are astronomical and tend to far exceed even the value of an item.

author: BillyO
author_rank: Super Contributor
timestamp: January 15, 2023, 04:19:48 pm
content: All couriers are the same with the extra fees. DHL are at least, as you say, fast.to the OP, did you read the main thread about this scope here? I'd say it's something to avoid. Maybe look at a Siglent or Rigol.What area of Canada are you in? If you are in or near Toronto there are lots of great used options available at any given time.

author: tatel
author_rank: Frequent Contributor
timestamp: January 15, 2023, 10:22:55 pm
content: Just for curiosity looked at it. I see they have Aliexpress Standard Shipping for some 30 extra bucks. I would choose that without any hesitation. I have had bad experiences with DHL and FedEx. Actually if I can get anything delivered only via a western courier, purchse isn't made

author: Geektronix
author_rank: Contributor
timestamp: January 15, 2023, 11:37:25 pm
content: Quote from: BillyO on January 15, 2023, 04:19:48 pmYes, have read lots on this model; for the cost, it'll do exactly what I need. I have another higher end Tek scope for things that really count.Quote from: BillyO on January 15, 2023, 04:19:48 pmWest Coast. There are some used options here (a lot more in Seattle) but it's all stuff I'm not really interested in.
Looking for Tektronix TLACAL Files on Application Install CDs V5.6, V5.7 or V5.8 - Page 1
Forum section: electronics / testgear

author: calibrationfixture
author_rank: Regular Contributor
timestamp: January 14, 2023, 06:26:08 am
content: Hi,This Software isn't available onwww.tek.com(with one exception, see below), but can be found separately on the TLA Application Install Disks. I allready have TLACAL V4.4, V5.1 and V6.0. V6.0 (downloadable from tek) doesn't support the TLACAL2 (P6800 Series) and TLACAL3 (P6900 Series) Fixtures to the same extent as the earlier V5.1 and V4.4. Hoping that TLACAL V5.6, V5.7 or V5.8 support the later introduced P6960DBL, P6962DBL, P6960HS and P6962 Probes.Is anybody in the possession of these?Calibrationfixture

author: calibrationfixture
author_rank: Regular Contributor
timestamp: January 15, 2023, 05:53:52 am
content: Hi,Thank you for your reply, but these don't contain the TLACAL Files. Only TLACAL V6.0.213.0 is listed. The only source for this Software are the original Application Software Install Disks. The way I acquired V4.4 and V5.1. The last with the help of others.Greetings,Calibrationfixture
HP/Agilent half width gear rack mounted. Middle bracket? - Page 1
Forum section: electronics / testgear

author: EE4all
author_rank: Regular Contributor
timestamp: January 08, 2023, 11:50:18 pm
content: Ok, I have a lot of HP and Agilent gear rack mounted. Some of it is half width, so I have a piece of gear on the left side, and another on the right. I have always assumed HP had a center piece that just keyed into the other gear piece to hold them together, but never had seen one or found it with a search. Recently, I found a few of these on an old HP piece of test gear. I assume this is it. Where can I find more? What the heck did they call it, or is the part number?

author: themadhippy
author_rank: Super Contributor
timestamp: January 09, 2023, 12:16:43 am
content: Not what your looking for,but apart from manufacturer specific,you can get universal joiners for examplehttps://www.canford.co.uk/Products/2026151/45-3360_CANFORD-JOINING-PLATE-For-half-rack-width-panel-1U

author: EE4all
author_rank: Regular Contributor
timestamp: January 09, 2023, 04:04:45 pm
content: Right, that one won't help.It's amazing that one can find rack mount flanges galore on eBay for far left and right, but not these center joining brackets.

author: EE4all
author_rank: Regular Contributor
timestamp: January 09, 2023, 04:10:19 pm
content: Ok, after a bit of extra searching, I did figure this out.It's called a lock link kit. The part number is 5061-9694.

author: TheSteve
author_rank: Unknown
timestamp: January 09, 2023, 04:13:38 pm
content: I get the feeling users ran without any center lock 99% of the time.

author: EE4all
author_rank: Regular Contributor
timestamp: January 15, 2023, 09:58:51 pm
content: The part number on JUST the front horizontal lock link, as I posted a picture for, is 0050-2166.

author: EE4all
author_rank: Regular Contributor
timestamp: January 15, 2023, 10:01:00 pm
content: Here is the full kit parts list. Hopefully this saves someone else some time if they ever want one of these parts.

author: EE4all
author_rank: Regular Contributor
timestamp: January 15, 2023, 10:05:25 pm
content: And here are the instructions.
Teledyne Lecroy VXI-11 - Page 1
Forum section: electronics / testgear

author: planetYo
author_rank: Newbie
timestamp: October 19, 2022, 02:18:24 pm
content: Hi everyone,I've a Teledyne Lecroy oscilloscope 3054Z wavesurfer, with no options. I try to setup a VXI-11 connexion. Unfortunately, in remote menu I see TCPIP settings but no VXI-11 settings as I can see on the Teledyne User manual. Version of firmware is V9.Did I forget to install any pilot on the oscilloscope to see this mode of connexion ?Thanks,

author: ollopa
author_rank: Regular Contributor
timestamp: January 14, 2023, 04:19:48 pm
content: See herehttps://www.eevblog.com/forum/testgear/scpi-access-to-lecroy-wavesurfer-3054/msg3927764/#msg3927764
power   FINSRI 1014D - Page 1
Forum section: electronics / testgear

author: lagonbleu
author_rank: Newbie
timestamp: January 14, 2023, 02:29:27 pm
content: HI , and good year !Hello everyone I make a mistake when i put 12v power DC on finsri 1014d :Because i don't have US adaptator , then i use 5v DC but nothing !!!With 12v ok ,but after some tests , lights freeze and commands inopérante ....I found Chip HS (burns ) : TS 61041 (U15) TEXAS INSTRUMENT ?I want to change bus this is CMS 6 broche . I find only 5 broches ...Does anyone can tell me where i find this ?very thanksSchematic_Scope 1014D_2022-05-10.pdf(884.84 kB - downloaded 61 times.)

author: pcprogrammer
author_rank: Super Contributor
timestamp: January 14, 2023, 03:30:34 pm
content: According to the datasheet you can probably also use the TPS61040. Has a higher internal switch current limit, so not sure if that will be a problem.https://www.ti.com/lit/ds/symlink/tps61041.pdf?ts=1673695286067&ref_url=https%253A%252F%252Fwww.google.com%252FIt is always a risk when buying of Aliexpress. Here is a link to a shop selling them.https://nl.aliexpress.com/item/32965120446.html
Broken SPD3303X-E binding post --- where to find a replacement? - Page 1
Forum section: electronics / testgear

author: roblkc3
author_rank: Contributor
timestamp: January 14, 2023, 12:22:38 pm
content: Hello!I've managed to break the thread on one of the binding posts of my SPD3303X-E PSU, and I've spent the past two hours looking for a replacement, but no luck....Does anyone know where I could find one (possibly with shipment in Switzerland or Italy), or at least it's part number (so that I can look by myself, instead of staring at millions of images of totally unrelated binding posts)?Thanks!Rob

author: rf-loop
author_rank: Super Contributor
timestamp: January 14, 2023, 02:30:44 pm
content: Quote from: roblkc3 on January 14, 2023, 12:22:38 pmThey are Siglent products (this part is, afaik, Siglent special). Why don't you ask Siglent. Yes, Siglent sells spare parts, just like other well-known manufacturers.It's a real shame that there is no spare parts list in the service manual.

author: roblkc3
author_rank: Contributor
timestamp: January 14, 2023, 02:35:28 pm
content: Thanks for your reply! I thought it was a commercial part, and I couldn't find a store for their parts on Siglent's website, my badI'll ask them then!Thanks and have a nice day!Rob
Thurlby Thandar Instruments PL330DP service manual - Page 1
Forum section: electronics / testgear

author: jwrodgers
author_rank: Unknown
timestamp: January 11, 2023, 04:53:52 pm
content: I have managed to get a few PL330DP power supplies, some in better condition than others. I would love to have a look at the service manual for these, but I can't seem to find it anywhere. I've had a good search, and come across the PL Series manual (Book Part Number 48511-0150), which has the following tid-bit:"This Service Manual is for the revised PL models introduced from mid-1991, with the exception of the PL-P 3Amp programmable models which are covered by a separate manual."Any pointers would be greatly appreciated[] - See below for service and instruction manuals

author: AVGresponding
author_rank: Super Contributor
timestamp: January 11, 2023, 05:54:00 pm
content: You might try an email to TTi technical support. They're usually pretty helpful, even with legacy stuff.

author: jwrodgers
author_rank: Unknown
timestamp: January 13, 2023, 05:26:21 pm
content: Thanks for the suggestion AVGresponding. That is exactly what I did, and they were very helpful. To help others that this way may come, here are the service manuals and instruction manual for these units.

author: jwrodgers
author_rank: Unknown
timestamp: January 13, 2023, 05:27:14 pm
content: And the operators instructions, along with the RS232 and ARC information.

author: HalFoster
author_rank: Frequent Contributor
timestamp: January 14, 2023, 11:06:00 am
content: Thank you for the post - I have been on the lookout for that for quite a while for my PL320.Hal
Fujitsu Denso EUL-600aXH - Page 1
Forum section: electronics / testgear

author: wictor
author_rank: Regular Contributor
timestamp: November 01, 2017, 05:51:42 pm
content: Hi,I have been trying to find manual for this electronic load, but I cannot find any. So, if you know where to find online documentation, schematics, service manual etc, I would be very interested...Does anyone know, what kind of GPIB commands can be used with this unit?Thanks,Wictor

author: tehaynes
author_rank: Newbie
timestamp: January 13, 2023, 02:04:28 pm
content: This is what I've found so far...HEAD?HEAD:ONHEAD:OFFLOAD?LOAD:ONLOAD:OFFT?MODE?MODE:CCMODE:CVMODE:CRMODE:CPMODE:CC,CVFUNC?FUNC:AFUNC:BFUNC:CSLEW?SLEW:2PSRQ?SRQ:OFFSLV?SLV:OFFPR?PR:OFFFREQ?DUTY?RANG?RANG:0AL?BU?CC?CI?CP?CR?CS?CV?DA?DB?DC?GR?
Fluke Smft-1000 solar meter - Page 1
Forum section: electronics / testgear

author: ulwur
author_rank: Newbie
timestamp: January 12, 2023, 08:35:10 pm
content: Cant wait for Dave to do a teardown of this!https://youtu.be/yWmoDidYZ8Q

author: floobydust
author_rank: Super Contributor
timestamp: January 13, 2023, 01:35:13 am
content: USD $5,400 for the basic kit. CAD $8,100 for theSMFT-1000 Solar Tools PRO Kit"free 60-day demo version of TruTest. Purchase a software key to unlock the Lite or Advanced version." TruTest Lite CAD $405, TruTest Advanced CAD $675.Good to know green means spend the green lol.6xAA alkaline battery power "Battery Life >900 measurements at 1,000V/1MEG" {I think this must be using the insulation megger} but no other lifetime spec. could I find, i.e. how many hours.For the price it should be able to do stand-alone datalogging. Let it record a sunrise/sunset and use BT or WiFi to download, instead of the IR cable.The instructions are dumbed down too much, i.e. 3-phase inverter efficiency measurement didn't make much sense. "On-location I-V curve results" but too simplified to really know what a person is doing. How many panels before death, the pic shows it on the HV DC bus and no way this baby is doing loading. You input the cell make/model from some database and it draws an I-V curve including the irradiance meter+cell temp. Or is it for one panel's worth?I'm not impressed.STM32F446ZET M4 512KB Flash and 128 KB RAM, external FLASH 128MB for saved results & calibration data.
OEM for this ATEX modified DMM ? - Page 1
Forum section: electronics / testgear

author: shakalnokturn
author_rank: Super Contributor
timestamp: January 11, 2023, 10:01:17 pm
content: I have this oldish DMM that was modified for use in explosive atmospheres by a small French company called "A puissance 3".The DMM itself is obviously not their design, I'd be curious to know who actually made it.

author: coromonadalix
author_rank: Super Contributor
timestamp: January 11, 2023, 10:57:13 pm
content: Could be Metrix now Chauvin ArnouxOr MetexBTWThe company still exist, why not sending them an Email ??IT could be their design while using known DMM ic ??

author: shakalnokturn
author_rank: Super Contributor
timestamp: January 11, 2023, 11:51:48 pm
content: Nothing about this thing smells Metrix, I've been in enough Metrix and Chauvin-Arnoux T.E. to say this isn't.It has more of a Taiwanese feel... I'd thought of Metex but don't see any similar models.I can't find any information on the ASIC.

author: coromonadalix
author_rank: Super Contributor
timestamp: January 12, 2023, 02:06:39 am
content: found your puppySoar 3255Hewlett Packard E2378Ahttp://www.auldies.euweb.cz/indev_VA_dig.html#SOARhttps://www.radiomuseum.org/r/hewlett_pa_digital_multimeter_e2378a.htmlhttp://nice.kaze.com/av/e2378a_man.pdfhttp://mrmodemhead.com/blog/yokogawa-7534-03-multimeter/

author: bdunham7
author_rank: Super Contributor
timestamp: January 12, 2023, 02:09:43 am
content: It's actually a Yokogawa 7534-03 which was rebranded as the HP and probably others.The ASIC is an OKI MSM6306.

author: coromonadalix
author_rank: Super Contributor
timestamp: January 12, 2023, 02:11:29 am
content: beat me to it lollhttps://www.eevblog.com/forum/testgear/teardown-of-a-rebadged-yokogawa-()-multimeter/

author: shakalnokturn
author_rank: Super Contributor
timestamp: January 12, 2023, 08:33:06 am
content: That's the one! Thanks.Why would the manufacturer be Yokogawa more than Soar?Looking around at external photos and scarce internal photos of other models both Yokogawa and Soar, I'd say it looks more Soar than anything else.

author: bdunham7
author_rank: Super Contributor
timestamp: January 12, 2023, 04:16:48 pm
content: Quote from: shakalnokturn on January 12, 2023, 08:33:06 amThat question might be complicated and obscure history lesson. They're both Japanese companies, Soar no longer makes multimeters AFAIK and Yokogawa still does. What their relationship was at that time, IDK.
Fluke 8840A slowly drifting with no input connected? - Page 1
Forum section: electronics / testgear

author: uski
author_rank: Frequent Contributor
timestamp: January 12, 2023, 07:16:45 am
content: Hi there!I just received a Fluke 8840A.The voltage readings compare pretty closely with an in-cal Keithley DMM6500, so I would say its accuracy is very good, considering the last cal was 13 years ago (thank you LTFLU-1 reference)BUT, something that surprises me, is that with no input connected, the voltage does not read zero. It starts at around 70mV when I start the meter. I can bring it to zero by connecting a resistor across the terminals. I left the meter for a few minutes on the mV reference and it's been climbing steadily by a few mV, from -5mV to around -9mV now.I think it means there is probably some leakage somewhere internally. Any idea where to look at? I have noticed several pictures of 8840A on eBay with no input connected and also showing a few tens of mV, so I am assuming this is a common issue and hoping that someone here knows about this...PS: The rear frame has been broken during shipping and it triggers my OCD - if someone has a parts 8840A and would be willing to sell me a rear frame for a reasonable price, I may be interestedPS2: I was able to remove most of the scratches on the smoked screen cover using Displex display polish, very impressive stuff (keep it away from the silkscreen)Thanks

author: uski
author_rank: Frequent Contributor
timestamp: January 12, 2023, 07:23:36 am
content: I found the answer! Apparently this is normal. The behavior of this meter is different than other meters. I am not the only one surprised.https://www.eevblog.com/forum/repair/fluke-8840a-is-this-normal/Still looking for a rear bezel - in case someone has a parts unit...

author: Gyro
author_rank: Super Contributor
timestamp: January 12, 2023, 10:47:16 am
content: Yes, perfectly normal for any high input impedance meter, not just the 8840.

author: Kleinstein
author_rank: Super Contributor
timestamp: January 12, 2023, 10:59:28 am
content: A drifting open input is normal and the DMM6500 should also show this in high impedance mode. It is a bit unusual that the input stabilzed at only a few mV. This means either an unusually low bias current (which would be good - a lucky find) or a somewhat lower than normal input impedance (e.g. a dirty PCB, a spider inside, high humidity). It may be worth doing another check here: charge the input so some 9 V or so and than record the time it takes for the voltage to come down (e.g. 1 V level). Ideally repeat with an extra low leakage (PP or PS type) capacitor of some 1-10 nF.For the time of the RC decay one can get an estimate on the input impedance. AFAIK there are schematics available for the 8840 and the internal capacitance in known.
how to calibrate Victor Vc97 - Page 1
Forum section: electronics / testgear

author: sahamipoor
author_rank: Newbie
timestamp: January 10, 2023, 12:41:58 pm
content: hi gays...i have huge problem by vc97...after By mistake, I tried to test a high frequency for measurement. More importantly, Multimeter played a certain sound like start music and then the calibration got messed up!!!In the voltage range has a permanent negative offset digit , in frequency range and the capacitor are messed up.The numbers are not as accurate as before.All parts and transistors were checked and are OK.i did flash the IC EPRROM with the file copied from the same like device ok, but also it did not work.There are two point on the back of the board that go into calibration mode by connecting these two ,and calibrate process started... but I don't know Exactly how to do it.chip is DS-HY12P66 (DTM0660)eeprom 24c02Dear engineers, I am asking for help. to this problem.Thank you very much

author: Fungus
author_rank: Super Contributor
timestamp: January 10, 2023, 02:53:02 pm
content: You killed it.Watch this video:https://youtu.be/4rADgFqFFH8?t=775Quote from: sahamipoor on January 10, 2023, 12:41:58 pmDid you record the music?

author: sahamipoor
author_rank: Newbie
timestamp: January 11, 2023, 01:04:19 pm
content: music!!No, how can I do this at that moment!!!but the music like starting over devices..like thatThere was no damage to the hardwareBut I saw the movie, but it did not specifically mention this issue

author: Fungus
author_rank: Super Contributor
timestamp: January 11, 2023, 02:23:12 pm
content: Quote from: sahamipoor on January 11, 2023, 01:04:19 pmNo, but it shows that measuring high frequencies can be very bad for multimeters.

author: ledtester
author_rank: Super Contributor
timestamp: January 11, 2023, 03:05:20 pm
content: Quote from: Fungus on January 11, 2023, 02:23:12 pmAnother joe smith test -- trying to power up an Aneng 8008 with a 200 MHz signal applied:ANENG AN8008 Handheld Multi-meterhttps://youtu.be/TSGLA9heboY&t=715s

author: Fungus
author_rank: Super Contributor
timestamp: January 11, 2023, 03:51:18 pm
content: Quote from: sahamipoor on January 11, 2023, 01:04:19 pmHow do you know?

author: sahamipoor
author_rank: Newbie
timestamp: January 15, 2023, 07:42:18 am
content: I am an electronics repairman..so i tested allbut only i had one question:how do i calibrate that multimeter by CAL pin on the board?
Siglent SDS2104X plus Price drop - Page 1
Forum section: electronics / testgear

author: dperry20
author_rank: Newbie
timestamp: January 12, 2023, 05:50:19 am
content: Price drop on siglent SDS2104X plus.Just purchased a SDS2104X plus 4 Channel Oscilloscope from TE TestEquity for $999.00. This is $400 less than the normal retail price.What is going on.

author: tautech
author_rank: Super Contributor
timestamp: January 12, 2023, 06:17:28 am
content: Quote from: dperry20 on January 12, 2023, 05:50:19 amRemaining stock from a 2 month promotion that ended 31 Dec last.All SDS5000X, SDS2000X HD and SDS2000X Plus scopes had price reductions or BW upgrades and option bundles thrown in too.

author: dperry20
author_rank: Newbie
timestamp: January 12, 2023, 06:25:56 am
content: Maybe I didn't search hard enough. I only saw them at $1399

author: tautech
author_rank: Super Contributor
timestamp: January 12, 2023, 06:33:45 am
content: Quote from: dperry20 on January 12, 2023, 06:25:56 amYou got one at the promotional price, that's all that matters.If you are really onto it, get the MSO option too if they have any left at the promo price of just $219 with FG licensing too. You can only get that deal with a new scope.
R&S SMP02 ERR233 YPLL unlocked - repair - Page 1
Forum section: electronics / testgear

author: BeamDump
author_rank: Contributor
timestamp: December 15, 2022, 07:50:32 pm
content: HiI have a SMP02 20GHz unit with a YPLL unlocked error (233). The unit does output the target frequency but it drifts, so the YIG/YFOM has to be operational and it's either the YIG-PLL, Sampling or Synthesis cards (which is most of the unit).Opened up the A21 sampling module with the YIG/YFOM assembly and saw a scorch mark on a motorola IC. Can anyone help identify the parts marked 3866, 5160 and also parts marked 420 and A08?

author: KeBeNe
author_rank: Regular Contributor
timestamp: December 29, 2022, 05:05:14 am
content: The 3866 might be an MRF3866, the 5160 might be an EL5160, the MMIC's are probably less special.

author: BeamDump
author_rank: Contributor
timestamp: January 12, 2023, 03:28:17 am
content: Thanks! MRF3866 is spot on, the other is MRF5160. R&S apparently use the same sampling design for their hfh2-z2 loop antenna.Too bad the transistors weren't the problem. Started measuring the YIG RF output directly by feeding it -5 to 0V to the PINYFO. I can't measure over 4GHz but from what i see 2-4GHz is the output power never exceeds 6 dBm and it jumps allot:2.1 = 3 dBm2.2 = 0.2 dBm2.3= 2 dBm2.4 = 6 dBm2.5 = 5 dBm2.6 = 2 dBm2.7 = 0.7 dBm2.8 = 3.3 dBm2.9 = 5.9 dBmetc...Will see if the YIG driver board is at fault, maybe poor transistor or voltage regulator but the RF output power should be at least 15 dBm at any given time from what i understand.Coil resistance measures 7.1 ohm on Main coil, 1.1 ohm on Tracking and 0.5 on FM coil (suppose to be 1.5 ohm?)Meanwhile, some photos of the YFOM module opened.
HP 3478A replacement transformer? - Page 1
Forum section: electronics / testgear

author: The Bootloader
author_rank: Contributor
timestamp: January 10, 2023, 09:55:49 am
content: Hi!I just got a 3478A. Unfortunately due to improper packaging, the transformer pins were damaged during shipping, beyond repair (a shock snapped all the pins off the transformer, cutting the transformer wire directly at the windings, and breaking the plastic isolation around the core too)So I am looking for a new HP 9100-4201 transformer...It's a long shot but would anyone happen to have one in their parts bin, maybe from a parts unit? I don't expect these transformers to fail often so I am hopeful there are extras laying around.Failing that, I would need to replace it. Seems like the analog windings are +-12V and +-24V and the digital one is +-12V perthis postand it makes sense looking at the schematics.I am having difficulties finding replacements with -24 -12 0 +12 +24 windings, let alone with an extra -12 0 +12 winding. Even -24 -12 0 +12 +24 is hard to find.I could use 3 different transformers, worst come to worst, but if I can avoid that it would be greatThanks for any pointer!

author: Kleinstein
author_rank: Super Contributor
timestamp: January 10, 2023, 01:20:14 pm
content: For the transformer it is not only about getting the voltages right, but also getting good isolation and shielding for the analog part. A seprate transformer for the digital / display part is not a problem.The hard part if the analog part, as this really should have shielding.

author: Grandchuck
author_rank: Super Contributor
timestamp: January 10, 2023, 02:25:25 pm
content: https://www.ebay.com/itm/385336379723?epid=2254324634&hash=item59b7d6894b:g:YOcAAOSwXPJjuB~3&amdata=enc%3AAQAHAAAAkAvX8O%2FnDAwAKu2c%2FLJ0Q%2BOfV1xXsOhR5OYxnp0IUQcxooH868Plr8dV95ilqYvXaTtTMuiy7%2BBQjdP4bF15xHU4ILXqIZpdgNqXFRKcK%2BDkHLLNZxPoc9pz1gJvUTLce8Z5XUqBk4B%2BivD6CkSocp86kSpOXeSc1dFRcNhbfkri42gSHCwGtR5PDTKoCO54Dg%3D%3D%7Ctkp%3ABk9SR96MisGzYQ

author: precaud
author_rank: Frequent Contributor
timestamp: January 10, 2023, 04:44:05 pm
content: I have a spare 9100-4201, PM me if interested.

author: The Bootloader
author_rank: Contributor
timestamp: January 10, 2023, 07:51:29 pm
content: Looks like I'll be getting a transformer! ThanksLeaving the topic open in case someone has a magic suggestion for anyone else who might be facing a similar issue

author: The Bootloader
author_rank: Contributor
timestamp: January 12, 2023, 01:46:53 am
content: Side note, if someone with a 3478A finds this topic because they are working on their 3478A.There are 4 yellow RIFA capacitors on the 3478A. It is extremely likely that they need to be replaced, as by now due to age the original caps are likely cracked and unsafe. In my multimeter, the 4 of them were in very bad shape.2 are located below the power switch (I recommend removing it for easier access), and 2 smaller ones are located near the rear panel.For more info search the forum for "RIFA capacitors"