hybridfree/eevblog-posts huggingface dataset:
Keysight Pathwave function generator Unrecoverable Error - Page 1
Forum section: electronics / testgear

author: Anthocyanina
author_rank: Frequent Contributor
timestamp: April 27, 2022, 09:35:38 pm
content: Hi! so today I got the EDU33212A function generator (the magical dumpster delivered!) and trying to connect it to the Pathwave app i get this error. This is a fresh install of the software on windows 10. I'm connecting via USB. Has anyone come across this kind of error in the Pathwave programs? Thank you!I'll add that using the keysight connection expert program, which was installed during the install of the pathwave software, works and i can send commands to the generator.

author: Anthocyanina
author_rank: Frequent Contributor
timestamp: April 28, 2022, 08:42:18 am
content: To see if it was my windows install, or the install of the software, i decided to make a virtual machine on a linux host. after doing so and running the software, i was presented with a license window when trying to connect to the generator; now knowing this, i still did the licensing process on the virtual machine and went back to my original problematic install, so i tried launching the licensing manager and it said the licensing service was installed but not running. After a while trying to find which was the service, i found out it was "Agilent License Service" which was there but could not be started, giving me an "error 1068" message. After trying the error 1068 solutions offered on the web, i still could not start that service or the executables associated to it. Not wanting to reinstall windows again, i wonder if anyone has come across this error 1068 on this service and knows of a working solution?Thank you!
Fluke temperature measurement - Page 1
Forum section: electronics / testgear

author: Cicada
author_rank: Regular Contributor
timestamp: May 02, 2022, 08:01:41 am
content: HiI have a Fluke 87V.Looking through the manual I see they say "use 80TK Thermocouple" I have and RTD (Pt1000) and used it with my meter.Measurements:Temp (C) Resistance0 857 ice water34.51113 body temp100 1600 boiling water @ sea levelThe 34.5 value was calculated from the other measurements.My question:Why does Fluke only cater for thermocouples to give out a converted temperature reading?It would have been nice if they could add a facility to convert resistance readings directly to temperature readings after the user did some sort of a rudimentary calibration, ice water & boiling water. With the knowledge that there will be +/- 2C errorsThis would be good enough for some applications. I don't work with temperature readings often so am I a bit naive here?

author: HighVoltage
author_rank: Super Contributor
timestamp: May 02, 2022, 08:47:53 am
content: Its easy to convert a Thermocouple voltage to temperature for handhelds.Most good bench DMM have a selection of temperature sensors to choose from, including platinum resistance in 2 and 4 wire mode.

author: HKJ
author_rank: Super Contributor
timestamp: May 02, 2022, 09:01:47 am
content: Quote from: HighVoltage on May 02, 2022, 08:47:53 amNot really, RTD is much simpler, but with a PT100 the wire and connection resistance would be a PITA.There is a few handheld meters that support RTD sensors and TestController can do the conversion for any supported meter or it can be done manually in TC's calculator.In this article I list supported thermosensor for a few high end meters:https://lygte-info.dk/info/DMMHigh-end%20UK.html

author: alm
author_rank: Super Contributor
timestamp: May 02, 2022, 09:05:43 am
content: Temperature measurements on handheld DMMs are geared at industrial and HVAC applications. I guess thermocouples are more versatile and convenient due their size, temperature range and robustness.Also front panel space in terms of range switch settings and buttons are restricted. Although I guess for a menu-based meter like the Fluke 289 they could have easily added it. Obviously there would be no support for three or four wire measurements of Pt100 sensors.

author: BeBuLamar
author_rank: Super Contributor
timestamp: May 02, 2022, 02:15:46 pm
content: I thought the PT1000 resistance would be 1000 ohms at 0 degree C.
Schematic / svc manual for this "white label" generic LCR meter - made in Korea - Page 1
Forum section: electronics / testgear

author: mapleLC
author_rank: Frequent Contributor
timestamp: April 17, 2022, 03:06:28 pm
content: I have seen other branded models of this same meter. Is there is known name for this model that I have as something generic that is a known clone?Protek Digital LCR Meter Model Z 216Protek is now Intertek, website turns up nothingHere is one of the other similar white labels by a brand called Adex... seems to have more traction but no service manualhttps://www.ebay.com/itm/371225494689https://www.google.com/search?q=adex+lcr+made+in+korea&tbm=isch&ved=2ahUKEwj817HQrpv3AhUgnGoFHarUBWoQ2-cCegQIABAA&oq=adex+lcr+made+in+korea&gs_lcp=CgNpbWcQA1CpClioDmDiDmgAcAB4AIABJ4gBqQGSAQE1mAEAoAEBqgELZ3dzLXdpei1pbWfAAQE&sclient=img&ei=tytcYrygDaC4qtsPqqmX0AY&bih=822&biw=1675&client=firefox-b-1-d

author: cnqhdszq
author_rank: Regular Contributor
timestamp: April 25, 2022, 11:01:51 am
content: It has only 1KHz frequency ,so it not suitable for electrolytic capacitor used in 50Hz/60Hz line smoothing . In factory It should be called component checker.

author: coromonadalix
author_rank: Super Contributor
timestamp: April 26, 2022, 04:18:41 am
content: https://www.electro-tech-online.com/threads/hung-chang-digital-lcr-meter-z216-manual-needed.157498/you have 2 pdf of an instruction manuali dont think you'll ever find an service manual for it ...

author: mapleLC
author_rank: Frequent Contributor
timestamp: April 27, 2022, 10:27:40 am
content: Quote from: coromonadalix on April 26, 2022, 04:18:41 amThats the same meter. I have the instruction manual, the original shipped with it.This appears to be the manufacturer, since it states a factory location at the end of that PDF.
Voltcraft VC850 - hack Max/Min button and Sleep function into multimeter - Page 1
Forum section: electronics / testgear

author: trying to be clever
author_rank: Newbie
timestamp: April 27, 2022, 10:52:02 pm
content: Hi,I recently got a Voltcraft VC 850. While reading an older post about it in this forum, I found out that it might be possible to add Max/Min and Sleep functions into it.Quote from: Retep on January 19, 2014, 05:39:44 pmQuote from: Hagis2k on January 19, 2014, 08:06:14 pmWhen I turn on the multimeter, all the LCD characters light up for a few seconds, and I can see a "MAXMIN" symbol that it's never used and it's not mentioned in the instructions manual. Could this symbol be supposed to be used with the Max/Min functionality?I've attached a picture with the symbols that are unmentioned in the instructions manual in red.Has anyone done these mods?
Boonton 71CR-S4 L-C Meter - Page 1
Forum section: electronics / testgear

author: W3SLK
author_rank: Contributor
timestamp: April 27, 2022, 10:17:18 am
content: I am trying to get some information about the Boonton 71CR-S4 L/C meter. It is very similar to the 71AR however, looking at the rear connections there are more inputs/outputs than the AR flavor. I have written to Boonton but they have not responded. I've had this device for ~25 years and who knows how long the fellow who gave it to me had it. Any information is greatly appreciated.TNX.
Some questions about Rigol MSO5000's - Page 1
Forum section: electronics / testgear

author: IRG7PSH73K10
author_rank: Contributor
timestamp: April 26, 2022, 11:05:01 am
content: Hi!Since MSO5074 for 850$ sounds like a good deal, and I don't care much about it's noise, I'm trying to figure out if this scope got any "lethal" bugs that makes it unusable in practice.For example, I've found some info that Rigol DS1000's series had an awful glitch: if you change horizontal scale of already recorded and saved signal, the vertical scale of the same signal changes too.Does MSO5000 series suffers the same bug too?Can one trust MSO5000 measurments in general?Does MSO5000 series still got the similar PLL problems as described here?https://www.eevblog.com/forum/projects/project-yaigol-fixing-rigol-scope-design-problems/
Wanted - 16702A 128MB memory upgrade - Page 1
Forum section: electronics / testgear

author: MateKrisz
author_rank: Regular Contributor
timestamp: April 24, 2022, 07:00:46 pm
content: Hi all,I bought an 16702A on eBay. Works fine, but I would like to extend the factory options.I looking for a HP/Agilent 5063-9262 128MB memory upgrade and/or HP/Agilent 16600-66518 Video memory upgradeAnyone has a plus for sale?

author: tv84
author_rank: Super Contributor
timestamp: April 25, 2022, 08:29:16 am
content: Post here:https://www.eevblog.com/forum/buysellwanted/

author: MateKrisz
author_rank: Regular Contributor
timestamp: April 25, 2022, 08:37:03 am
content: Hi,OKay, I share it also.Krisz

author: gslick
author_rank: Frequent Contributor
timestamp: April 25, 2022, 07:38:44 pm
content: Quote from: tv84 on April 25, 2022, 08:29:16 amExcept if you do that now, Simon will not be your friend...

author: MateKrisz
author_rank: Regular Contributor
timestamp: April 25, 2022, 09:17:43 pm
content: I made it, I posted there and I deleted my post, but still live...
Low cost programmer for SPI programming - Page 1
Forum section: electronics / testgear

author: Jester
author_rank: Frequent Contributor
timestamp: April 25, 2022, 07:26:16 pm
content: I have a Segger J-Link mini for programming via SWD and three JTAG programmers.Idon'thave a dedicated programmer for SPI programming (for example Arduino bootloader programming, or bare metal programming for example from Atmel studio) , yes I know you can use an Arduino, I just prefer to have a dedicated programmer so I don't have to find an Arduino board and go through the motions of loading the bootloader program etc.Suggestions for the lowest cost (but works) SPI type programmer???Thanks,J

author: Fungus
author_rank: Super Contributor
timestamp: April 25, 2022, 08:00:32 pm
content: I use one of these for Arduino bootloader programming and bare-metal programming of ATtiny chips:https://www.ebay.com/itm/172059880149Don't know if it will work in Atmel studio though.

author: Jester
author_rank: Frequent Contributor
timestamp: April 25, 2022, 08:26:52 pm
content: Quote from: Fungus on April 25, 2022, 08:00:32 pmThanks, that looks like it would do the job.After I posted my question, I vaguely recalled having another box of programmers that I have not used or seen for a while, 1/2 later and some serious digging I found it, the box contained several development boards and programmers including an AVR dragon and that one does SPI and does talk to Atmel Studio. Now I don't have to wait.Thanks
Kontron 6006 Frequency Counter - Page 1
Forum section: electronics / testgear

author: bbrand67
author_rank: Newbie
timestamp: April 25, 2022, 06:23:11 pm
content: Hello,I recently acquired a Kontron 6006 frequency counter from the early 80's.Unfortunately, its EPROMs suffer from amnesia, which, given it's vintage, is not really surprising.Is there anyone who owns such a unit and who would be capable of and willing to create images of the EPROMs? The one on the main board (6006A) would be the most important; the one on the GPIB board (6006B) would only be nice-to-have since I doubt that I will ever use GPIB.Best regards,Bernd
Keysight 1000x series (2 channels, old version) pc software - Page 1
Forum section: electronics / testgear

author: Anthocyanina
author_rank: Frequent Contributor
timestamp: April 25, 2022, 03:31:41 am
content: Hi! so I've been trying to find if there is software for the old 1000x series oscilloscopes that would let me see the scope's display on the computer, kind of like what the rigol software for the 1000z series does. I've come across this "D9010BSEO Infiniium Offline - Base Software" from the oscilloscope's upgrades/software page, but this apparently only works with saved files, is very costly, and doesn't provide a live view of the oscilloscope. Looking in many other sites, including the hacking threads for that scope and the announcement for its release, and other websites which talk about that series, there seems to be no mention of any pc software for the 1000x scopes (the old white ones). Does anyone know if software that would let me see the data live on the computer exists? whether it's made by keysight or an open source project?Thank you!

author: Bud
author_rank: Super Contributor
timestamp: April 25, 2022, 06:26:15 am
content: Keysight BenchView. But i do not know if there is a free version of it.

author: Anthocyanina
author_rank: Frequent Contributor
timestamp: April 25, 2022, 07:04:09 am
content: Thank you! I looked into that one but going to the supported devices list, from the 1000x series, it only supports the new black ones(120xa/g, 1052a/g) and when looking at sites which sell it, it appears to be discontinued and with a price of over 400$Has anyone with the white ones(1102a/g,1002a/g) tried the demo to see if it works with those scopes?Thank you!

author: derree
author_rank: Contributor
timestamp: April 25, 2022, 03:14:17 pm
content: I am using an edux1002a with benchvue, which you can download for free on keysights website after a registration process.You have to register your device inside the benchvue software, after that it will be shown as entitled for the oscilloscope module.To the software itself, well, it is a huge software suite, and I find it to be kind of clunky compared to rigols software, which I used with a ds1054z. It works, but I expected a better experience from an A brand like keysight. In direct comparison I found rigols solution better, and it was far from perfect.The most annoying aspect of benchvue is the slow reaction of the scope when I manipulate controls on the pc. (which could be a problem with the scope of course).

author: Bud
author_rank: Super Contributor
timestamp: April 25, 2022, 04:32:42 pm
content: I used it with the liberated EDUX1002https://www.eevblog.com/forum/blog/eevblog-978-keysight-1000x-hacking/msg3713563/#msg3713563

author: Anthocyanina
author_rank: Frequent Contributor
timestamp: April 25, 2022, 05:34:54 pm
content: Quote from: derree on April 25, 2022, 03:14:17 pmQuote from: Bud on April 25, 2022, 04:32:42 pmGreat! thank you both
Keysight 3000 A/T, 4000A probe cal failure criteria ? - Page 1
Forum section: electronics / testgear

author: EE-digger
author_rank: Frequent Contributor
timestamp: March 23, 2022, 12:45:25 am
content: Is anyone familiar with the probe calibration "flow" or in particular, what makes a probe fail?I have one active probe, via the N2744A Tek to AutoProbe adapter, which works properly, has good offset control and low noise.As you watch the cal waveform proceed, this probe, vs another of the same model, has a cal sequence which does sort of a double jump before the second half of the sequence. The beginning and ending portions of the overall sequence look like a good probe. But it fails.So if offset zero adjust is good and offset range adjust is good, and the cal waveform is good, what is making it fail?added - I did note that the gain for this failing probe appears to be greater than a good probe. Unfortunately, these scopes don't give access to attenuation factor for probes connected via the N2744A adapter.

author: Patrick20
author_rank: Newbie
timestamp: April 25, 2022, 03:00:13 pm
content: Hi EE-digger,Can you provide the model number for the Tek active probe you are using? I am a Keysight employee and would like to try and recreate your setup as close as I can in my lab to see if there is an issue with our 3000 A/T or the N2744A T2A adapter.It sounds like from your post that you have two Tek probes, where one passes the cal and the other fails. It seems like this is caused by a gain measurement?We may be able to figure out the attenuation factor by doing a measurement with a known voltage and then seeing what is displayed on the scope screen via the Tek probe.Thanks!Patrick20

author: HighVoltage
author_rank: Super Contributor
timestamp: April 25, 2022, 03:35:05 pm
content: I had a gain problem with a N2744A T2A probe interface adapter and a TEK current probe on a MSOX3000A scope. Finally I gave up on this setup problem and switched to a Keysight current probe and all was perfect.

author: Patrick20
author_rank: Newbie
timestamp: April 25, 2022, 05:04:36 pm
content: Hi HighVoltage,Do you recall the model number of the tek probe you were trying to use?Regards,Patrick20
LeCroy WaveJet 324A failure - Page 1
Forum section: electronics / testgear

author: gaminn
author_rank: Frequent Contributor
timestamp: December 14, 2017, 12:22:16 pm
content: Hi,I turned on my LeCroy WaveJet 324A after approx. 3 years. However, it won't boot - please see videohttps://youtu.be/ijJ6xrUnGNk.I checked internal backup battery and it has 3.2 V. Capacitors inside the scope looks OK.Do you have any idea how to fix that?

author: Hydrawerk
author_rank: Super Contributor
timestamp: December 14, 2017, 10:01:37 pm
content: I am interested.

author: Mr. Scram
author_rank: Super Contributor
timestamp: December 14, 2017, 10:45:05 pm
content: Does the manual list any error codes. The beeps and lights seem to amount to one.

author: gaminn
author_rank: Frequent Contributor
timestamp: April 25, 2022, 02:54:14 pm
content: After 5 years I switched on my old broken 324A and surprisingly, it still doesn't bootMeanwhile a service manual for LeCroy WaveJet appeared on the web -https://www.download-service-manuals.com/en/manual.php?file=LeCroy-13624.pdf. Unfortunately I'm afraid that it is for older WaveJets. At least it mentions that main CPU of the scope is Renesas 32-Bit RISC Microcomputer SH7727, which I believe is not true, because in my 324A, on CPU board, I found a big chip with SH3 laser marking - I assume it is Renesas SH3.Otherwise, the service manual seems to be somehow up to date, at least all boards and interconnections it describes are actually present in my 324A.In section 6.4 in describes some kinds of errors based on LEDs lit at startup. Unfortunatelly, my combination (blinking channel 2, REF, AUTO, STOP single) is not mentioned there. There are also some diagnostics flow charts starting from chapter 6.6.3, unfortunatelly I can't find any of it helpful.I measured voltages going from power board to ADC board (it is the only exposed power supply connector I'm able to measure) and the voltages corresponds to what is written in the manual (connector 29J4).Any help welcome. Thanks
Keithley 6514 gives odd SCPI read response - Page 1
Forum section: electronics / testgear

author: adamredwine
author_rank: Newbie
timestamp: April 24, 2022, 09:22:43 am
content: I am using a Keithley 6514 to measure some small currents (~100 pA - 0.5 microA) in our lab. Because these values cross several orders of magnitude, the electrometer shifts among the different ranges. When it does so, I sometimes (though not always) get a step change in the readout provided by a SCPI query. That is, over a series of several measurements, one section will appear reasonable and at some specific point (when the range changes), the measurements will jump by a factor of 2 and then the subsequent measurements will be consistent with this new baseline. Has anyone else seen behavior like this?
Keithley DMM6500 ADC workings - Page 1
Forum section: electronics / testgear

author: Jelbert
author_rank: Contributor
timestamp: April 27, 2022, 10:05:26 pm
content: Hi,I'm planning to buy a new dmm and the Keithley DMM6500 looks perfect. When I read the datasheet it tells about a 16 bit ADC used in the scanning mode. An 16 bit ADC is not accurate enough to achieve a 6 1/2 digit readout. So how does this dmm work?I asked at tek and the local distributor answered by sending the datasheet and not explaining at all. So how does it work? A dual slope ADC next to the faster ADC for fast scanning or only the ADC and some math interpolation trick?

author: TiN
author_rank: Super Contributor
timestamp: April 27, 2022, 10:36:24 pm
content: 16 bit ADC is used for sampling/digitize function, while MS ADC used for 6.5-digit readings and normal operation.

author: bdunham7
author_rank: Super Contributor
timestamp: April 27, 2022, 11:02:10 pm
content: Quote from: Jelbert on April 27, 2022, 10:05:26 pmI think you have the terms a bit crossed. The DMM6500 can take an optional multi-channelscanningcard that lets it take readings from multiple inputs in sequence. That is 'scanning'. It would typically use the normal ADC--multislope with autozero--for that function, the same is it would for any normal reading. The 16-bit ADC is for the high sample rate digitizing feature where IIRC it can take something like 1 million readings per second, but obviously with only 16-bit resolution.

author: Jelbert
author_rank: Contributor
timestamp: April 28, 2022, 04:43:02 am
content: Thank you both,I'm going to order this device. Yes I had the terms a bit crossed.
HP Agilent ESG-D2000A E4431A Firmware Update - Page 1
Forum section: electronics / testgear

author: Momchilo
author_rank: Regular Contributor
timestamp: January 13, 2022, 10:04:36 pm
content: Hi,I got an old HP ESG-D2000A (E4431A) signal generator. I'm trying to update the firmware.Installed firmware version: A.01.12New firmware version: B.01.03from KeysightI'm using thisUSB to null modem RS232 adapter.Instead of a simple firmware file, it is a whole script from HP that needs to be run. The .exe files that go with the script only run in Windows 98SE.Therefore, I have set up a virtual machine with Windows 98SE and installed the driver for the USB RS232 adapter in the virtual environment (that alone was a nightmare). Then I installed Putty and got the appropriate response from the signal generator with the command *IDN? in the virtual machine. That is how it looks after booting and the IDN command:Therefore the interface itself works inside the virtual environment.As soon as I execute the Dlserial.bat file for the firmware update, specify the COM port, switch off the device and as soon as required switch on nothing happens. The update is not executed and it looks like this forever:Has anyone ever updated one of these and know what I am doing wrong?Thanks in advance for your help

author: ua4yhz
author_rank: Regular Contributor
timestamp: April 23, 2022, 08:20:50 pm
content: https://www.keysight.com/ru/ru/lib/software-detail/instrument-firmware-software/psgesg-signal-generator-upgrade-assistant-1716976.html

author: MarkL
author_rank: Unknown
timestamp: April 23, 2022, 09:35:47 pm
content: The manual says:QuoteI don't know enough about windows to say if that matters.You could attach a serial port monitor (scope, logic analyzer, FTDI breakout board, whatever you have) to see what characters, if any, are going back and forth.Also make sure /dev/ttyUSB0, or whatever port your adapter is mapped to, is raw and 8-bit clean ("stty -a < /dev/ttyUSB0").Does the README say anything useful?Years ago I did an upgrade on an E4433B via the serial port using WINE. It's almost the same procedure, but uses a different upgrade package with different firmware from HPAK.
Old software for Keithley 2700 and Windows 9x - Page 1
Forum section: electronics / testgear

author: anewangelfades
author_rank: Newbie
timestamp: April 21, 2022, 09:07:32 pm
content: Hello,I have a Keithley 2700 that I have to use with Windows 9x since it's attached to a GPIB PCII/IIA card that only works with Windows 9x.We actually use the Xlinx 2.0 software that came with the DMM itself, but I know that several updates were made, like Xlinx 2.1, Testpoint, etc.Does someone have any Windows 9x software newer than Xlinx 2.0?Thank you very much!

author: Smith
author_rank: Frequent Contributor
timestamp: April 22, 2022, 05:51:37 pm
content: Have you tried the Keithley / Tektronix forum? I've used it multiple times, they where quite helpful.https://forum.tek.com

author: gslick
author_rank: Frequent Contributor
timestamp: April 22, 2022, 06:29:00 pm
content: Quote from: anewangelfades on April 21, 2022, 09:07:32 pmIs there some reason why you need to keep using the old ISA bus GPIB PCII/IIA card, other than that is just the card you happen to have on hand currently? If you need to stay with an ISA bus card for some reason, upgrading to a ISA bus AT-GPIB/TNT(PnP) card wouldn't cost much, at least in the US, and be compatible with more recent versions of NI-488.2 software.Even PCI bus NI PCI-GPIB cards are reasonably affordable now, at least in the US.

author: anewangelfades
author_rank: Newbie
timestamp: April 26, 2022, 07:30:11 pm
content: Quote from: gslick on April 22, 2022, 06:29:00 pmHello,the reason mainly is that we have several self-developed DOS only softwares that were developed for these ISA cards (CEC 488 and NI PCII/IIA) during the years (startingo from 1986 if I remember correctly).Everything still works, but some PCs are starting to age (we were still using a 486 whose only way to pass files from one pc to the other was using 3.5" floppies...), so we are slowly "upgrading" to "newer" PCs that have Windows 98SE or ME, but still ISA motherboards.
Wanted - IFR 2935 GSM Test Head Service Manual - Page 1
Forum section: electronics / testgear

author: DeepLink
author_rank: Regular Contributor
timestamp: November 16, 2021, 09:35:23 pm
content: I have a few IFR 2935 PC Controlled GSM Test Head'sNot that I need them for testing old phones, but wanted to find a schematic of the boardsMaybe some parts will be useful for other projects

author: Astrodev
author_rank: Regular Contributor
timestamp: April 23, 2022, 02:26:46 pm
content: I just found your post and have been looking for info on these fore a while. Because like you I have several of them and thought they may have other possibilities.I am assuming that you do not have a copy of the software for driving them as I was looking for this in order to work out what the commands are to drive them.If you could let me know what info you already have it would be helpful and I can let you know anything I find out in my searches.
New Siglent handheld scope series (1202X, 1102X) - Page 1
Forum section: electronics / testgear

author: elekorsi
author_rank: Regular Contributor
timestamp: April 21, 2022, 05:13:44 pm
content: I own an old Fluke scopemeter, it's great but i decided to buy another handheld oscilloscope, with more functions and isolated inputs...I am familiar with the Siglent SHS1xxx series, but now i see that it is in the "discontinued" phase and my local supplier has taken it of it's website. They now list two new isolated input scopemeters SHS1102Xand SHS1202X, with the price and delivery time "on request".After checking the Siglent.eu website they don't list them anywhere, and after some googling i could only find datasheet in the Chinese language... It doesn't seem to be available to western market yet...I know that here on the forum we have people who are specialized in Siglent (Tautech) and i would like to ask, what to do now? Buy the old SHS from old stocks with firmware that works, or wait until the new series becomes available to the EU? I will still be a bit concerned about buying the new series, as i am sure that i can expect some beta problems with the firmware...How long can we expect to wait for the stable, new version in the west?What will happen with the pricing?

author: tautech
author_rank: Super Contributor
timestamp: April 22, 2022, 12:41:40 am
content: Good spotting but we beat you by some months.https://www.eevblog.com/forum/testgear/new-x-model-siglent-handhelds-coming/Official release is next week when hopefully all the Siglent websites will show these new models and their pricing and then we'll update the thread with the latest info.Until then.....QuoteWait.These are a overdue refresh of the 800 & 1000 models with some substantially improved features and more powerful processing.As the feature set will be similar to SDS1202X-E there shouldn't be much in the way of bugs in the SHS****X models ....well Siglent doesn't seem to think so as they ignored my offer of beta testing them.
AVCOM PSA-37D - Page 1
Forum section: electronics / testgear

author: LaserSteve
author_rank: Super Contributor
timestamp: August 14, 2015, 03:09:57 pm
content: Wanted, the elusive if not impossible to obtain schematic and or service manual for a AVCOM PSA-37D... I have some excess birdies in my unit.. Would really like to have an actual schematic.Steve

author: Atomi
author_rank: Newbie
timestamp: April 22, 2022, 12:58:07 am
content: Hello, I'm looking too. please.
Texscan question - Page 1
Forum section: electronics / testgear

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: April 22, 2022, 12:29:13 am
content: Hello,does anybody have the designation system of RF elements from the former company Texscan corporation, like, for example, filters?Some traders are not very helpful this regard and sometimes I have the feeling that they do not even tell what they know. So I would be willing to take a risk AND have to establish the characteristics myself, but I would need the basic information WHAT IS IT?One such trader offers Texschan X5BC160/20-KK, a tubular element with SMA connectors. So is it a filter, detector, DC-Block, whatever? If it is a filter, is it HP, LP, BP,..and so on.Any information which brings light to that is welcome. (not only for this object, but in general)

author: mankan
author_rank: Regular Contributor
timestamp: April 22, 2022, 08:53:24 am
content: I have a Texscan 5vf750 which is a variable BPF, 750-1500MHz with N connectors.
Voltcraft DSO-2154 SE Oscilloscope (4 chan, 150 MHz) experience somewhere ? - Page 1
Forum section: electronics / testgear

author: Netweaver
author_rank: Newbie
timestamp: April 29, 2022, 01:33:06 pm
content: Hi,I'm in the market for an affordable yet somehow decent DSO (aren't we all, just our definition of decent and affordable is different) and I stumbled across this Voltcraft 2154-SE (presumably Special Edition for there 40 year's existence??), at a rather low pricepoint for it's (headline) specs.: 4 channels, 150Mhz, 1G sampl/s (shared or not??), 80K record size.For a seriously reduced price of 269€ at Conrad. Normal price was 415€. Now, I think the 'normal' price is too much for what it offers but at 269€ it seems a decent value. So I'm tempted.But I don't seem to find any review or real live experience video or comment here and anywhere, which worries me a bit.Anyone out here who has an idea on quality/usability? Any pro/cons? I know the obvious, low memory depth, unknown quality on low voltage signals (potential problem also with other Voltcrafts), etc but real life experience is often the more valuable feedback.Thanks.Edit: typos

author: tunk
author_rank: Super Contributor
timestamp: April 29, 2022, 01:39:09 pm
content: Could look like a rebranded version of OWON SDS1104.

author: Netweaver
author_rank: Newbie
timestamp: April 29, 2022, 01:53:21 pm
content: Thanks for the hint!Indeed seems to be a 'rebrand', but with a bandwidth of 150 MHz (vs. 100) and 80 Kpts memory depth (vs. 20K) AND at a significant (in % at least) lower price point.Specs wise it's not an order of magnitude better but all-in-all should be visibly better.At least I find review videos on the Owon SDS1104's usability.If I would have to compare this Voltcraft 2154 SE to the Hantek DSO5102P, the second one being slightly more expensive, only 2 chan. and lesser overall (visible) specs, what would you think?You see my temptation... ?
Marconi/Aeroflex/IFR 2025 - RF level range and load question - Page 1
Forum section: electronics / testgear

author: 6SN7WGTB
author_rank: Regular Contributor
timestamp: April 21, 2022, 01:01:02 pm
content: I have the IFR 2025 and have noticed something I do not understand - can someone explain/help...?As you wind up the RF level/output there are occasional clicks of reed relays as I presume attenuators get switched out or different output stages get switched in.When I have it connected to an RF mV meter (input impedance 1MΩ plus tens of pF), and with the mVM on a set range of say 3V, and I wind up the RF level towards 1V, the meter smoothly reads up to that 1V from basically zero (through the ranges of the mVM). And going through several relay clicks on the 2025.At that 1V level, continuing to increase level (to say 1.01V) causes a typical click and this is accompanied by the mvM reading DROPPING by about 20%. Ramping the RF level on the 2025 causes the mVmM reading to smoothly continue back up.Thinking something might be duff with the 2025, I then attached a 50Ω through load. This pretty much halves the reading on the mVM as expected (the 2025 is set to 50Ω). So the 2025 would not appear to be duff at all.Now as I ramp up through 1V on the 2025 (and the click) the meter shows no perceptible discontinuity.(Tried this from 10kHz to 20MHz and same effect at same RF level)Using an AVO 8 to measure the RF output (at a low freq. the AVO can cope with), the discontinuity through the 1V 'click' is very small.Could someone explain?Thank you.
Digitek DS830B + new User - Page 1
Forum section: electronics / testgear

author: medomag
author_rank: Newbie
timestamp: April 20, 2022, 09:44:37 am
content: Hello, i just Beging use avometer , And buy Digitek DS830B , , I need to know BUZZ botton in this model , Thank you

author: tv84
author_rank: Super Contributor
timestamp: April 20, 2022, 10:37:56 am
content: Why create a new thread if the msg had already been posted in the correct thread?

author: medomag
author_rank: Newbie
timestamp: April 20, 2022, 11:37:53 am
content: Because not recived reolay , do you know any information to know me?

author: wraper
author_rank: Unknown
timestamp: April 20, 2022, 12:07:48 pm
content: This will get you banned quickly. There is no buzzer in this meter.

author: medomag
author_rank: Newbie
timestamp: April 20, 2022, 05:55:38 pm
content: So, how can ensure two both ends of the wire is connected.

author: wraper
author_rank: Unknown
timestamp: April 20, 2022, 06:23:30 pm
content: Quote from: medomag on April 20, 2022, 05:55:38 pmSet 2000 Ohm range and look on the display. Buzzer function does not tell that connection is good. Beeping indicates that resistance is lower than about a few tens of ohms (threshold somewhat varies in different meters). It's just a function to make finding connections easier, so you can do the job faster without looking on the display every time.
Digitek DS830B+ Multi-meter (Can I be pointed to a review?) - Page 1
Forum section: electronics / testgear

author: Andy-In_over_my_head
author_rank: Regular Contributor
timestamp: December 15, 2016, 06:23:15 am
content: I pulled out the first multimeter I had before I started buying more and noticed it had a transistor tester...I did try the search box here first... fat goose egg...I don't get the hFE meaning... nor the numbers it's displaying.. especially with it starting at -0.12 with no transistor inserted...If you could please point me in the right direction of a similar multimeter review or something that explains this a bit...Thank you in advance!

author: Fungus
author_rank: Super Contributor
timestamp: December 15, 2016, 06:30:32 am
content: Quote from: Andy-In_over_my_head on December 15, 2016, 06:23:15 amIf you look at any transistor datasheet there's a value called 'hFE'. That's what it measures.

author: Andy-In_over_my_head
author_rank: Regular Contributor
timestamp: December 15, 2016, 06:34:20 am
content: Quote from: Fungus on December 15, 2016, 06:30:32 amBummer, I didn't want to end my night with my foot in my mouth... but here I am.. foot in mouth..So this multimeter has these only to measure the current gain?I'm sure it will be useful somewhere along the line...Thanks...

author: Fungus
author_rank: Super Contributor
timestamp: December 15, 2016, 06:36:11 am
content: Quote from: Andy-In_over_my_head on December 15, 2016, 06:34:20 amYep. It's a good indicator of whether the transistor is working or not.

author: Wytnucls
author_rank: Super Contributor
timestamp: December 15, 2016, 06:52:41 am
content: Etymology of hFE:h refers to its being an h-parameter, a set of parameters named for their origin in a hybrid equivalent circuit model.F is from forward current amplification also called the current gain.E refers to the transistor operating in a common emitter (CE) configuration.Capital letters used in the subscript indicate that hFE refers to a direct current circuit.(extract from Wikipedia)

author: Wytnucls
author_rank: Super Contributor
timestamp: December 15, 2016, 07:12:44 am
content: Notes about hybrid equivalent circuits:https://parthoduet.files.wordpress.com/2013/02/ch-59.pdf59.14 explains h-parameters

author: Fungus
author_rank: Super Contributor
timestamp: December 15, 2016, 12:50:23 pm
content: Quote from: Andy-In_over_my_head on December 15, 2016, 06:34:20 amDon't worry, we've all been there.

author: medomag
author_rank: Newbie
timestamp: April 20, 2022, 09:41:19 am
content: Hello, i just Beging use avometer , And buy Digitek DS830B , , I need to know BUZZ botton in this model , Thank you
Searching for a specific type of test clip - Page 1
Forum section: electronics / testgear

author: justanothername
author_rank: Regular Contributor
timestamp: April 20, 2022, 02:41:49 pm
content: Hi All!Some time ago I inherited a bunch of test gear from a hobbyist. These two test clips came with the lot.They are by far the best clips I've ever used. They are tweezer style self closing clips made from painted spring steel. The spring tension is very strong.The hold onto the finest contacts as well as to big pins like nothing I've seen. I really want to get more of these clips.If anyone has some or can tell me where to buy them, I'll be very grateful.See attached picture.Thanks!M.

author: PushUp
author_rank: Regular Contributor
timestamp: April 20, 2022, 10:20:01 pm
content: I know of "Hirschmann" with the same mechanism, but looking a bit differently with links from two german shops:SKS Hirschmann AGF 2:reichelt.de:https://www.reichelt.de/abgreifklemme-4-mm-rot-agf-2-rt-p3953.html?&trstct=pol_10&nbc=1conrad.de:https://www.conrad.de/de/p/sks-hirschmann-agf-2-fein-abgreifklemme-rot-klemmbereich-max-4-mm-laenge-54-mm-1-st-121796.htmlCheers!

author: justanothername
author_rank: Regular Contributor
timestamp: April 21, 2022, 06:35:01 am
content: Thank you, that is a good find.Although, in this model, the cable is entering the clip sideways, which seems unstable to me.Based on the magic words "fein-abgreifklemme", I found a weird website where someone sells exactly the clips I need:http://sites.prenninger.com/verkaufe/steckverbinder/laborsteckverbinderThe order code from distrelec is long gone, but I think they may be manufactured by Schnepp.M.
Fitting a R&S SMIQ06L with a display - Page 1
Forum section: electronics / testgear

author: wilhe_jo
author_rank: Regular Contributor
timestamp: April 19, 2022, 06:30:49 pm
content: Hi!Anyone ever opened up a SMIQ06L?This is one of the display-less variants of these nice 6GHz generators.Looking at some ebay listings, it seems to me, the CMD57 shares the same display unit.So buying a SMIQ06L and a CMD57 could be an interesting score...The question is, will the display fit and will the firmware recognize the display...73

author: Qw3rtzuiop
author_rank: Frequent Contributor
timestamp: April 19, 2022, 07:36:40 pm
content: Its possible for the ATE variant:https://www.eevblog.com/forum/repair/rohde-and-schwarz-smiq06ate-to-rohde-and-schwarz-smiq06b/Dont know where the differences between the L and ATE variants are.
ADVANTEST R5362A Frequency Counter Info? - Page 1
Forum section: electronics / testgear

author: AJ3G
author_rank: Regular Contributor
timestamp: March 17, 2020, 04:04:40 am
content: Hello:Just picked up am Advantest 5362A for a very reasonable price. Wondering if anyone has documentation on the “A” series. I see information posted on the web about the “B” variant which looks close. Ideally, I would be really interested if someone knows of a source for schematics.Finally, anyone have any feedback on this instrument? Not finding much in the way of online searching. Was planning on using it for some L-Band work I am doing.Rich

author: serg-el
author_rank: Regular Contributor
timestamp: April 03, 2020, 01:37:10 pm
content: I have some information.

author: serg-el
author_rank: Regular Contributor
timestamp: April 03, 2020, 01:52:46 pm
content: And this

author: AJ3G
author_rank: Regular Contributor
timestamp: April 07, 2020, 09:39:56 pm
content: Hi Serg:Sorry for the delay in my response. I would like to thank you for contributing these documents and useful information!I have downloaded them for safekeeping. After getting it, I found what I believe to be a frequency compensation capacitor (33pF Silver Mica) had opened up on the RF Path to input B (low frequency input). I replaced it with a 1KV NPO disc and it works wonderfully. Nonetheless, I love having copies of documentation for my instruments.I really like the Advantest products. I have a R3267 with TG, and I think they really do make a quality instrument.Rich

author: serg-el
author_rank: Regular Contributor
timestamp: April 08, 2020, 08:52:18 pm
content: Hello.I also like Advantest equipment, but I don’t like their policies regarding manuals and service manuals.Good luck!

author: AJ3G
author_rank: Regular Contributor
timestamp: April 09, 2020, 07:34:12 pm
content: Hi Serg:I was not aware of some adverse policy regarding manuals and service manuals. Is it that one must pay for it, or they just do not want to provide them period?Rich

author: ua4yhz
author_rank: Regular Contributor
timestamp: April 18, 2022, 02:00:10 pm
content: Hi guys.Does anyone have a power circuit for this device?Please share. I bought a faulty device. The old owner tried to fix it, but couldn't. I replaced all the exploded elements in the power supply, but there were no chips and a power transistor, they were removed by the old owner.
Lafayette TK10 VOM - Page 1
Forum section: electronics / testgear

author: Skunkjar
author_rank: Newbie
timestamp: April 16, 2022, 07:12:42 pm
content: Hey there i just wanted to show off my latest restoration. Admittedly I basically did nothing but clean with some contact cleaner and windex.I could not find the manual online anywhere so i took high resolution image of each page and uploaded it to Archive.Nice to meet you all!https://archive.org/details/img-20220416-142435-greatness

author: LaurentR
author_rank: Frequent Contributor
timestamp: April 18, 2022, 03:20:15 am
content: Very nice!Not completely related, but the (amazing) World Radio History website has dozens of Lafayette catalogs online. You probably won't find a manual, but you should be able to find references, years when it was built...https://worldradiohistory.com/Lafayette_Catalogs.htm
Yet another Siglent SDS1102CML+ stuck on the boot screen - Page 1
Forum section: electronics / testgear

author: jam6212
author_rank: Newbie
timestamp: April 17, 2022, 04:53:53 pm
content: I’ve got a Siglent SDS1102CML+ O-scope that hangs on boot. I’ve tried the MATH button trick over and over, but it hasn’t helped. The unit is still under warranty so I want to avoid opening it if I can. I’ve seen others on the forum talk about how the USB recovery method worked for them, so I wanted to see if anyone could shed some light on this before I send it off for repair.I can’t check the firmware version, but I last updated it around last august, so it’s fairly up to date.Thanks in advance!
R&S RTB2004 - meaning of dotted lines above and below trigger line ? - Page 1
Forum section: electronics / testgear

author: javadesigner
author_rank: Contributor
timestamp: March 09, 2021, 02:22:40 pm
content: This is a n00b question!When I slide the trigger line (up or down) on the RTB2004, a dotted (or dashed if your prefer) line shows up above and below the trigger line. This happens while the solid trigger line is being dragged and then those dotted lines disappaer once the drag is finished.I've read the scope manual entirely and I don't see this mentioned anywhere. I'm at a loss to figure out what these lines actually mean. Also, these dotted lines don't don't show up if I turn on "HF reject".My threshold is set to 0 and hysteresis to small - not sure if that has any connection to these dotted lines (they don't seem to expand further when hysteresis is set to large).[edit: attached a pic to show this]

author: javadesigner
author_rank: Contributor
timestamp: March 09, 2021, 05:32:56 pm
content: Quote from: PeDre on March 09, 2021, 04:02:44 pmThanks - but I could not find anywhere in the manual where it says these dotted lines are threshold and hysteresis. What am i missing ?https://www.rohde-schwarz.com/webhelp/RTB_HTML_UserManual_en/Content/e77b4782fd80431c.htmThe manual says thesolid lineis the threshold level (as expected). How can the dotted line also be the threshold ? I'm confused. Arebothdotted lines the hysteresis level only ?

author: Doug_T
author_rank: Contributor
timestamp: April 17, 2022, 03:30:29 am
content: I’m confused as well. Why show the dotted line (I only indicate one dotted line slightly below the trigger threshold) if it’s not indicated in the manual? The channel hysteresis (small, medium, large) do not alter the distance between the trigger threshold and the mysterious dotted line. R&S?

author: Doug_T
author_rank: Contributor
timestamp: April 17, 2022, 03:55:45 am
content: With the Edge trigger’s HF Reject (5kHz low pass filter) enabled, the dashed line disappears. The Noise Reject (I think based on the channel’s Hysteresis) moves the dashed line below the trigger further away from the trigger (my trigger was 100 mV and the channel hysteresis 1 mV). THe Width trigger has the dashed line slightly below the trigger threshold as well.

author: egonotto
author_rank: Super Contributor
timestamp: April 17, 2022, 05:09:09 am
content: Hello,that is the hysteresis. It seems you have rising and falling edge trigger enabled. Therefore the hysteresis line for rising edge and the hysteresis line for falling edge.Best regardsegonotto
Escort EDM-2347 manual or specsheet needed. - Page 1
Forum section: electronics / testgear

author: ant907
author_rank: Newbie
timestamp: September 05, 2014, 02:22:43 am
content: Hello,I cant seem to find a manual or spreadsheet for the Escort EDM-2347 bench multimeter. Does anyone have anything?Thankyou

author: englishrupe01
author_rank: Newbie
timestamp: April 15, 2022, 07:32:20 pm
content: I am looking for that same manual too. Anyone?
SDM3055X Fan Connector Type - Page 1
Forum section: electronics / testgear

author: eloso
author_rank: Regular Contributor
timestamp: April 14, 2022, 09:36:06 am
content: Hi,Does anyone know make and model of the SDM3055X fan connector ?I intend to make a little resistive dropper adaptor that will be put in line with the fan and only want to open the case once to minimise faffing around with the warranty sticker too much - I intend to keep the machine original and maintain the warranty. I was thinking of cutting a small plate to replace the option connector plate which would have a switch on it so I would be able to switch the dropper in and out as a programme of making some test / stability / warm up measurements which might be of interest to those here.RegardsEloso

author: tooki
author_rank: Super Contributor
timestamp: April 14, 2022, 02:50:59 pm
content: The only picture I could findthat shows the fan connector isn’t very sharp, but it looks like a 2-pin JST XH to me.

author: Tjuurko
author_rank: Regular Contributor
timestamp: April 15, 2022, 03:47:36 am
content: Time = 12:20 and 19:25

author: tooki
author_rank: Super Contributor
timestamp: April 15, 2022, 10:55:05 am
content: That helps, it definitely looks like the JST XH.

author: eloso
author_rank: Regular Contributor
timestamp: April 15, 2022, 06:45:59 pm
content: Thanks allI shall make up the adaptor with JST XH - not the end of the world if it turns out to be something else but it does look right.RegardsEloso