hybridfree/eevblog-posts huggingface dataset:
Software for E2459A - Page 1
Forum section: electronics / testgear

author: sleary78
author_rank: Unknown
timestamp: July 05, 2020, 11:03:46 pm
content: If anyone has the floppy disks (or images of) for a HP E2459A 040/060 breakout please ping me a message..I contacted Keysight but they helpfully told me it was out of production.

author: tggzzz
author_rank: Super Contributor
timestamp: July 06, 2020, 07:19:09 am
content: Quote from: sleary78 on July 05, 2020, 11:03:46 pmWhere have you googled?Have you looked at, and/or asked a question, on the groups.io group HP-Agilent-Keysight-equipment ?

author: sleary78
author_rank: Unknown
timestamp: July 06, 2020, 01:54:25 pm
content: I'd hunted all over google and asked various suppliers. I checked the HP ftp downloads too. Nothing.I'll try the groups io.I'm basically looking for the inverse assembler files of the 040/060 which are v different from the 010/020 files.

author: fisafisa
author_rank: Regular Contributor
timestamp: July 07, 2020, 06:55:48 am
content: http://userequip.com/files/specs/2264/HP%20E2459A%20User's.pdfAs I understand, the support is included in the 1670x family of Logical analyzers,I have done some reverse assembling using the 16702 directly connected to the pins of the processors 68030.I had to connect following the instructions I found in a similar manual (for the 030)The configuration file was already in the 16702 installation.
Datron Wavetek 1271 manuals - Page 1
Forum section: electronics / testgear

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: July 06, 2020, 11:22:33 pm
content: I have scanned a set of 1271 manuals. It is complete and error free, BAMA and KO44b, don't know if K)44b has posted them yet. BAMA has:http://bama.edebris.com/manuals/datron/1271/
Testing TTL in circuit? - Page 1
Forum section: electronics / testgear

author: 172pilot
author_rank: Newbie
timestamp: July 06, 2020, 03:19:21 pm
content: I am a hobbiest, trying to diagnose and repair 70s->late 80s arcade and computer boards.. Nothing fancy - Mostly Z80/6502/6809 vintage stuff running all 5v logic at clock rates at maybe 6mhz and below.I have a 4 channel rigol scope and a logic probe, I've been wondering if there's something reasonably available to test logic chips in circuit, since they're mostly soldered in. I'm envisioning some device I can tell that I'm clipped onto a specific 74xx part, and it would monitor the outputs to make sure they make sense, based on the status of the inputs. This is especially tricky with parts that might have output enable inputs / high impedance output modesI have a cheap 16 bit logic analyzer which I have very little experience with, but I'd think maybe there would be something like that which could do some analysis of the logic lines to suggest whether a chip is good or not? Obviously another chip on a bus, or a subsequent input could be broken and driving another output high or low, but it seems this could be useful.I've seen "Logic Comparitors" but I haven't seen any still being made (at least for a reasonable hobbiest price).Is there something around that would do what I'm looking for?Thanks in advance!!Steve

author: tggzzz
author_rank: Super Contributor
timestamp: July 06, 2020, 03:42:31 pm
content: Firstly check the PSU voltage and noise/ripple. Fix that firet.Secondly use your scope to verify the input and output voltages will be interpreted as valid logic signals.Thirdly, use your logic analyser.
Rigor DG1022U brick - Page 1
Forum section: electronics / testgear

author: icemanh
author_rank: Newbie
timestamp: July 05, 2020, 02:04:48 pm
content: HelloMy DG1022U is bricked while upgrading firmware. My hardware version is 3, bootloader version is 0. So I upgraded the bootloader and it looked fine.However, I found it halted during DSP. Only the Mod, Store/Recall, Burst buttons lighted up forever. No choice that I had to switch it off. Retried the upgrade and everything is the same..I am using a 2G usb stick.Any idea how I can fix it?Thank you...

author: icemanh
author_rank: Newbie
timestamp: July 06, 2020, 01:17:26 am
content: I solved the problem by using different FAT32 formatted USB stick.I noticed that the DG1022 kept trying to read USB when it stuck at Burst button lighted on. It may indicate there is some wrong in USB reading.So I tried different USB sticks, 1G, 2G, 4G etc. Finally a Lexar 4G worked good and now DG1022U resumed to normal...

author: Gandalf_Sr
author_rank: Super Contributor
timestamp: July 06, 2020, 11:01:47 am
content: Glad you fixed it. Was it a Rigol (and not Rigor)? Rigol gear is crazy-fussy about the USB drives, has been a source of problems for me in several occasions now. I recently had one where the drive that loaded the new bootloader worked but then that same drive would not work for the GE file upload.When you find a drive that works for a specific piece of test gear, label it and put it on one side, that's what I have done.
Favorite lock-in good to 2 MHz - Page 1
Forum section: electronics / testgear

author: ezalys
author_rank: Frequent Contributor
timestamp: July 03, 2020, 08:23:01 pm
content: Hey all,Our group is looking for a new lock-in. We've narrowed it down to the signal recovery 7280, SRS SR865A, and Zurich instruments MFLI. Does anyone with experience with some of these instruments or other lock-ins have strong preferences about which one is superior? Most reliable?Best wishes,Evan

author: ezalys
author_rank: Frequent Contributor
timestamp: July 06, 2020, 01:16:12 am
content: Bump. Someone here must have strong opinions on lock-ins.

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: July 06, 2020, 04:20:03 am
content: SRS has been a long time leader in lock-ins and I would stay they still are. SR865 is a fairly new model which is very easy to use with a touch screen and it has a lot of hardware capabilities. Signal Recovery 7280 is a pretty old design from a dying company (used to be EG&G) with confusing menus, so it mostly sits on the shelf. Zurich Instruments always seemed too expensive for what they offer, so I never used one.

author: TheUnnamedNewbie
author_rank: Super Contributor
timestamp: July 06, 2020, 06:19:47 am
content: We have an SRS at work, and a Zurich Instruments one on the way. I can ask my colleagues what they think of them - I don't use them myself.
Mustool mt111 - Page 1
Forum section: electronics / testgear

author: Ohm
author_rank: Newbie
timestamp: July 05, 2020, 03:41:51 pm
content: Anybody know about this cheap ass meter?

author: LaserEng
author_rank: Regular Contributor
timestamp: July 05, 2020, 06:00:46 pm
content: 24 seconds in tells me all I need to know were the vid shows 1000VDC 750VAC but earlier in the vid you can see where the wires from the probes attach to the unit it says 500VAC MAX, I wouldn't touch this POS with a barge pole and I certainly wouldn't be trusting the CAT rating either.Might be a nice toy if your work only requires measuring low voltages but nah, not for me.

author: Corner
author_rank: Regular Contributor
timestamp: July 05, 2020, 11:45:30 pm
content: I'd get it for my wife to sometimes measure her alkaline batteries, but this is a bit too expensive for battery measuring...oh well I guess it's a no-buy for me.

author: Fungus
author_rank: Super Contributor
timestamp: July 06, 2020, 05:50:58 am
content: Quote from: Ohm on July 05, 2020, 03:41:51 pmIt's the latest trendy meter, rebadged by dozens of companies.The ANENG one is trendier:https://www.aliexpress.com/item/4001133211069.htmlIt comes in three versions, one with ordinary LCD, two with battery guzzling inverse-LCD displays, the most expensive one is green/red! It's main selling point is that it looks like a phone. Woohoo! Some people might even think it's a TFT screen from that video, but it isn't.Quote from: Corner on July 05, 2020, 11:45:30 pmThese are $2:
IC Tester - Manual ? Hacks ? - Page 1
Forum section: electronics / testgear

author: Martin72
author_rank: Super Contributor
timestamp: July 04, 2020, 07:54:55 pm
content: Hi everyone,Today my ic-tester arrives from amazon - "well known" under several names, this one here comes from tutoy.It seems to work, test a tl072, tl074 and ne555 with it.But:No manual was included, where can I get it from ?Don´t know where to put transistors or diodes into, for example.Further, are any hacks known like extended library for op-amps ?Test a tl072/074 and it shows tl082 or tl 084, because these are the ones it got in it´s library.Martin

author: indman
author_rank: Super Contributor
timestamp: July 05, 2020, 07:28:01 am
content: Here is some useful information.https://www.eevblog.com/forum/testgear/chinese-ic-testers/http://www.afug-info.de/Testberichte/IC-Tester/

author: kripton2035
author_rank: Super Contributor
timestamp: July 05, 2020, 07:40:55 am
content: I don't see how such a tester can alone differentiate between tl7xx and tl8xx ?

author: CDaniel
author_rank: Frequent Contributor
timestamp: July 05, 2020, 07:53:05 am
content: Of course it can't , the same for many many others opamps . Pins are the same , just some parameters are different that such a tester can't measure for sureImportant is that it can detect an opamp good / bad .

author: Martin72
author_rank: Super Contributor
timestamp: July 05, 2020, 03:31:40 pm
content: Oh man, you´re both right, didn´t think about it....This couldn´t get any better than it is.
DER EE DE-5000 Mods - Page 1
Forum section: electronics / testgear

author: Acecool
author_rank: Regular Contributor
timestamp: July 05, 2020, 12:03:47 pm
content: Here is a list of mods I did to mine...I purchased a spare tweezer -22 box.. but having 3 boxes in the carry case was annoying so I modified one of them. I used the GX-16-4 connector with ground going to the exterior, and the 4 pins to -1, -2, +1, +2 with pins 1, 2, 3 and 4.I didn't have to cut up the PCB in the -22 box, but I did just in case the threads of the GX-16-4 connector would scrape the solder-mask off ( although if it came into contact with ground, that wouldn't be a big deal as it is grounded ) and because it sat inside the housing a little off.I wired up the tweezers and it passed. Next I'll be wiring up the 2 clips I purchased with BNC connectors via an adapter I'm making. So 1 box, tweezers can connect to the box... the clips go from the box to a BNC adapter ( I'll either leave the clips as BNC or I'll wire them up to the GX-16-4 connector... but having a BNC adapter would be beneficial as a lot of test equipment uses BNC...I have yet to decide whether or not I'll modify the mini alligator clips - probably not because I have the larger ones with more range... So in the box I'll keep the larger clips, the tweezers, the one box, the unit, usb adapter, power adapter, usb cord, spare battery and maybe a few other things.All of this is really easy to set up and clears out a lot of space in the carry case. If I end up wanting to easily swap between 2, quickly, then I may modify a second box.Some issues - with the GX-16 connector, when the box is plugged into the unit... you can't screw the cable on. If you screw it on first, it sits at an odd angle so I may have to remove some plastic or melt the plastic of the unit casing to give it a clear path.. not sure if I'm going to do this.I am also thinking of adding a capacitor discharge plug near the power button on the right side. I already have the resistors and I've built the circuit ( pretty simple to allow both directions ) so you can discharge it safely.The solder job on the ground wire to the threads is pretty bad. I was only using around 350C and I used copper wiring from a shielded cable so I will redo that at some point.But I just wanted to post this in case anyone was interested in doing something similar... It is definitely worth it because of space savings, quick swapping of tools ( calibration required though or? )... The nut didn't fit on the inside of the box, though unless I cleared a channel... I decided against it. I added a thick solder block to either side of the threads which helps keep it in place, and the heavy ground wire is tight to help it too... plus I melted a bit of the plastic into the threads and added a bit of black hot glue ( which is much better than the clear ). I can push and pull on this and it won't budge.
Test equipment manual sites - Page 1
Forum section: electronics / testgear

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: February 26, 2020, 05:26:40 pm
content: Thought it might be useful starting a thread with a listing of sites for quick reference and to help the newcomers just starting out....Some of these are well trod some are somewhat obscure!https://bruce.edebris.com/http://www.ko4bb.com/getsimple/index.php?id=manualshttps://elektrotanya.com/kereshttps://www.eserviceinfo.com/http://userequip.com/manualshttps://www.opweb.de/english/homehttp://hparchive.com/hp_equipmenthttps://www.liberatedmanuals.com/http://www.one-electron.com/Archives/Techs_FC/filing_cab.htmlhttps://www.davmar.org/elec.html#newsgroupshttp://www.bluefeathertech.com/https://doc.xdevs.com/docs/http://www.hakanh.com/dl/https://neurophysics.ucsd.edu/Manuals/https://www.schematicsunlimited.com/http://www.ebaman.com/index.php/remository/ELECTRONICS/Test-Equipment/https://www.download-service-manuals.com/en/index.phphttps://www.mods.dk/manual.php?brand=flukehttps://www.lost-manuals.com/http://manuals.repeater-builder.com/te-files/https://www.user-manuals.com/index.phphttp://files.stardustarcade.com/Test%20Equipment/http://www.barrytech.com/hewlett-packard/standards/hp-standards.htmlhttps://isurplus.com.au/user-manuals.htmlhttp://www.byan-roper.org/steve/manuals/http://www.doe.carleton.ca/~nagui/labequip/https://www.liberatedmanuals.com/http://www.ke5fx.com/gpib/readme.htmhttp://www.to-way.com/tf.htmlhttps://xdevs.com/fix/https://www.badcaps.net/forum/index.phphttps://dev.xdevs.com/projects

author: Tomorokoshi
author_rank: Super Contributor
timestamp: February 26, 2020, 05:41:52 pm
content: Keysight keeps a fair selection of manuals and other documents appropriate for Agilent and Hewlett Packard. The scans may not be completely clear.https://www.keysight.com/us/en/home.htmlArtek has scans of manuals. Average cost around $10. Worth it for cases where a clean scan is needed, particularly for schematics.http://artekmanuals.com/

author: tautech
author_rank: Super Contributor
timestamp: February 26, 2020, 07:52:25 pm
content: Similar big list of manual sources here:https://www.eevblog.com/forum/repair/repair-documents-and-links-sticky-me-please-mods/msg478132/#msg478132

author: bluey
author_rank: Regular Contributor
timestamp: July 05, 2020, 09:55:14 am
content: Links dont show up when searching for words. HP archive unofficial - publications, manuals, HP measure missing 2 issues:http://hparchive.com
Sliding out CRT together with CRT driver board and flyback transformer HP 856XE - Page 1
Forum section: electronics / testgear

author: hafrse
author_rank: Regular Contributor
timestamp: July 04, 2020, 09:49:30 pm
content: Hello,is it safe to slide out the CRT together with the CRT driver board and flyback transformer on a HP 856XE without discharging and without disassembling the cables to the CRT from the CRT controller and the flyback transfomrer?The unit was not powered on for a couple of weeks and I do not want to discharge or disassemble the cables, I just want to slide out all the units together.Thanks
Datron Wavetek 1071, 1271 and 1281 brochures - Page 1
Forum section: electronics / testgear

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: July 07, 2020, 04:33:23 pm
content: Enjoy!

author: Dr. Frank
author_rank: Super Contributor
timestamp: July 07, 2020, 07:13:06 pm
content: The first document for the 1071 is not attached properlyTHX

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: July 07, 2020, 07:59:51 pm
content: Thanks! We'll try this again!

author: Vgkid
author_rank: Super Contributor
timestamp: July 07, 2020, 10:05:20 pm
content: Thanks for the uploads. And fixing the 1071 doc.
Time travelling on my Keysight EDUX1002G - Page 1
Forum section: electronics / testgear

author: TK
author_rank: Super Contributor
timestamp: August 14, 2017, 02:27:54 am
content: The other day I watched a video where Dave discovers the LOST Easter Egg on the Agilent (Keysight) DSOX2000 scope.So I decided to check if the same Easter Egg is present on my EDUX1002G... and indeed, I activated the 108 minute countdown clock of the SWAN Hatch!!!And after 108 minutes...No wonder why this scope can travel in time and activate the serial decode trial license over and over and over...https://www.eevblog.com/forum/testgear/problems-registering-promotional-dsox1102g/msg1257164/#msg1257164Here is how to activate the Easter Egg:Press the BACK buttonThe menu buttons are numbered from top (1) to bottom (6).Enter the last 4 LOST numbers 15 16 23 42Voila! You are in THE SWAN hatch and the 108 minute countdown clock is activatedEDIT: The back in time "feature" is available only on the original firmware. If you upgrade to the latest firmware or you receive a new unit with the latest firmware on it, the remaining trial days will change when you change the system date.

author: TK
author_rank: Super Contributor
timestamp: March 22, 2020, 01:54:57 am
content: The DSOX1204, EDUX1052 series has the same Easter Egg

author: martinot
author_rank: Regular Contributor
timestamp: July 08, 2020, 12:04:14 pm
content: Quote from: TK on March 22, 2020, 01:54:57 amHaving a chance to test and play with the DSOX1202G, I can also confirm that it is still here in the recently released updated versions (Black, Linux) of the 2-ch scopes.
TDS5000 encoder problems - Page 1
Forum section: electronics / testgear

author: tonykara
author_rank: Contributor
timestamp: July 03, 2020, 09:17:49 pm
content: Wow, I just got a TDS5104 and all the encoders barely function! Took the unit apart, and found these are semi-custom jobs that are integrated right on to the PCB! So much for replacing those!!I was able to fairly cleanly remove the dust caps (which also control the detent count, so don't mix them up) and clean the insides with alcohol and cotton swabs. (making sure I didn't leave any fibers behind). They now work pretty well, but what a major hassle to melt the heat stakes, clean, re-assemble, and reform the heat stakesI wish they used standard off the shelf rotary encoders. I would have replaced them all by now much easier, and again in 10 year.
Slaughter 232 - Page 1
Forum section: electronics / testgear

author: Rory
author_rank: Frequent Contributor
timestamp: June 30, 2020, 02:06:25 pm
content: Hi Folks,I'm looking for documentation on a Slaughter 232. It's supposed to be a hi-pot but I can't identify a high voltage source anywhere in it. Web search comes up with nothing useful

author: Rory
author_rank: Frequent Contributor
timestamp: July 03, 2020, 01:43:57 am
content: Well, it's gone on the surplus table. I wonder how long it will be until it disappears...

author: Fungus
author_rank: Super Contributor
timestamp: July 03, 2020, 05:06:42 am
content: Quote from: Rory on June 30, 2020, 02:06:25 pmMaybe somebody already removed that card from it...
Does anyone know what this white RF transistor labeled N6 can be - Page 1
Forum section: electronics / testgear

author: gorang1
author_rank: Newbie
timestamp: July 01, 2020, 01:58:01 pm
content: Does anyone know what the white RF transistor labeled N6 can be?It is a buffer on the Rohde SMA100A 6Ghz output module.Suspects that it is incorrect because the output from it is a few dB too low. The strange thing is that there are 2 similar transistors and both show too low gain.If I had a service password, I could have measured the current in them. But it seems impossible to get password level 2 for SMA100ARegardsGoran

author: shakalnokturn
author_rank: Super Contributor
timestamp: July 01, 2020, 10:55:54 pm
content: Wasn't the answer given on Stackexchange satisfying?Reposting the link to the datasheet that was given there:https://www.qorvo.com/products/d/da000104

author: gorang1
author_rank: Newbie
timestamp: July 02, 2020, 07:24:12 am
content: Thanks for the answer, but do not understand what you mean by StackexchangeI've never been and searched there.Looked for the link you gave me on Stackexchange but couldn't find it there.Is there information there that I missed. Maybe password level2 is there too?However, it may be the transistor you gave the link to, but in the service manual it says that the output from transistor number 2 should be + 15dBm and that is exactly what this transistor can deliver with 1dB compression./Goran

author: shakalnokturn
author_rank: Super Contributor
timestamp: July 02, 2020, 03:20:54 pm
content: Sorry, my wrong. I supposed it was you asking there too.https://electronics.stackexchange.com/questions/482514/small-chip-ic-identification-request-top-code-9n-or-n6-in-3-x-3-pad-package
Modern instrument compatibility with USB flash drives - Page 1
Forum section: electronics / testgear

author: utogaria
author_rank: Newbie
timestamp: July 02, 2020, 01:23:56 pm
content: Today I discovered a rather strange compatibility issue on my Keithley 2450 with USB flash drive. I was trying to upgrade the firmware on the SMU, but the SMU kept reporting that there was no flash drive present. I tried to format the flash drive to FAT, FAT32, exFAT, NTFS (repeatedly formatted the drives on windows, mac osx, and ubuntu), after a few ours of trying, none of my attempts worked. I tried all my USB flash drives (a bunch of them in different brands with different capacities) on other instruments, and discovered that Rohde & Schwarz RTB2002 also has the same compatibility issue with my flash drives. My Rigol 1054z worked like a charm, thumb up to Rigol. Just when I was about to give up, I found a format scheme option in the disk utility app on my mac. I changed the scheme to "Master Boot Record", and format the flash drive again to FAT32. Voila! Both the Keithley SMU and R&S scope read the flash drives without a problem. I checked the manuals for these instruments, most of them have a common problems and solutions section, where they state that their instruments are only compatible with Windows FAT file system, nothing related to the "Master Boot Record" scheme is mentioned anywhere. I just want to share this in the forum in case someone also stumbles on the same problem and might look for a solution in this forum.
Datron 470X Pullout card - Page 1
Forum section: electronics / testgear

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: July 06, 2020, 02:38:14 pm
content: Here is the 470X series pullout card. This is a compressed PDF, if anyone wants the original JPEG scan (6.5Mb, to big for here) please PM me.Card is meant to be printed on a 11x17 sheet.
Just got a desoldering station - SS-331 ( 100 - 250v 'Euro version' ) more tips? - Page 1
Forum section: electronics / testgear

author: Acecool
author_rank: Regular Contributor
timestamp: July 02, 2020, 08:47:54 am
content: Does anyone know where I can get other tips for it? The tips provided in the packaging are terrible... Even using low / proper heat to not damage the tips - they still end up pretty bad.I also blip the trigger and I plan on making a mod to change how the vacuum system works - either by a) having a vacuum chamber, sensor, etc.. so the vacuum chamber gets a vacuum and is maintained at a certain level by the pump and pulling the trigger operates a solenoid for suction... or b) create a delay circuit which opens a solenoid when the pump has reached peak suction. -- I am probably also going to create another circuit for the trigger so the vacuum can only be blipped. ie: active for as much time is necessary at max suction for the solder to clear the tube, and no more with a bypass switch to allow normal mode.I was thinking of originally building one, but the prices are so low I figured I'd buy one and see how I like it before modifying it.The handheld unit, the gun is nice but it makes this awful loud buzzing noise. The heating element is TINY.. I thought it would be the same size as my normal soldering iron, but it is miniature... Is this just on this design or is it on all? If it is just on this design, I may replace the element...I have yet to be able to find any replacement tips for it - does anyone know where I can get quality tips for this device?Does anyone have a side by side photo of the ZD 985 with this unit to compare the size of the heating element to see if it is just this unit or if all of them are this tiny..?Also, the motor is really loud and I saw that someone made their own with a small motor that performed really well and was silent. Does anyone have any good recommendations for motors as I may just buy another handle, get a bigger heating element, tips, etc.. and incorporate this into my existing station... I modified the hot air tool so it has the same gz-16-n connector so I can rewire the handle, etc.. to fit and have the wire-out work for it ( I'd make it so the wires on the desoldering gun aren't changed since I added the connector to the hot air gun - but I'll likely have to add a larger connector... OR, I'll just add a smaller connector next to it and use one or the other )...I think I can make it all work in the current housing... I also purchased a KSGER T12 soldering station which I may also incorporate into the same housing by replacing my existing one - or I'll keep it as the primary after resolving the main issues with it. It's version 3.1 or 3.01...Does anyone have any other mods they'd recommend to do with the ss 331, photos, etc..? or the KSGER?
Thinking of getting a multi-tester ( T1 / T7 ?? ) Which do you recommend. - Page 1
Forum section: electronics / testgear

author: Acecool
author_rank: Regular Contributor
timestamp: July 02, 2020, 08:37:32 am
content: So I've been seeing these inexpensive testers for a while now which test the components, and give you a diagram of each pin-out without having to look up the original diagram.I have yet to find a T1 comparison with the T7, I'm guessing that the T7 is newer because the T1 was out longer and the T7 looks like it started showing up in videos in 2017... But, is there a newer one?Also, do these devices have easy access to edit the software? Some of these are open-source, so I am thinking of editing the device I get to streamline testing, and so on...Which ones do you have, which ones do you recommend? Why? Which one is the latest with latest hardware / software. I don't care if it is the T1 or T7 or something else.Also, it would be nice to have a pad available - but if one isn't I can always make a PCB that I can plug into the socket to add this functionality if something like this doesn't exist.Thanks
Rhodes & Schwarz RF Attenuator RSG - Page 1
Forum section: electronics / testgear

author: daveyk
author_rank: Frequent Contributor
timestamp: June 30, 2020, 10:53:12 pm
content: I can not find a programmers or user manual for the old R&S RSG attenuator. I'm trying to use the RSC (much more modern) as a guide but it is not exact.I figured out that to program the attenuation, use: ATT 20 ... or whatever value is needed.There are probably other commands like the frequency, which I do not understand why an attenuator would need. I guess it's to limit it's upper end. A user manual would be nice. R&S only has the specifications on their site and not the user manual.I need to write some software now to test this to make sure it is good. These R&S RSGs do tend to be blown easily. A technical or service manual would be nice too.Dave

author: jhenderson0107
author_rank: Regular Contributor
timestamp: July 02, 2020, 02:08:28 am
content: Specifying the frequency may improve the accuracy of the instrument. Perhaps the device employs an internal calibration table (initialized during calibration) whose contents are incorporated when setting the attenuation value. I have used some power sensors which use this approach to improve their accuracy.
Fluke IR189USB Cable Adapter - Page 1
Forum section: electronics / testgear

author: boful
author_rank: Contributor
timestamp: June 22, 2020, 02:06:35 pm
content: Greetings ...Failing miserably. Attempting to use the Fluke IR189USB Adapter (Rev II) with PulseView (0.4.2) Windows 10. Spend a very long weekend of fun trying to determine why Pulseview Crashes At Startup during "Scanning For Devices" when the IR189 Adapter USB is connected.Clean Windows install, etc, all the normal stuff.Asking, if anyone out there has used this adapter with Pulseview. Pulseview states 'supported' device.ThanksBoful

author: HKJ
author_rank: Super Contributor
timestamp: June 22, 2020, 03:21:53 pm
content: If ithe adapter creates a serial port you can useTestControllerwith Fluke 189

author: abraxa
author_rank: Frequent Contributor
timestamp: July 01, 2020, 09:50:04 pm
content: https://sigrok.org/wiki/PulseView: "PulseView (sometimes abbreviated as "PV") is a Qt based logic analyzer, oscilloscope and MSO GUI for sigrok. "Note the absense of multimeters.https://sigrok.org/wiki/SmuView: "SmuView (sometimes abbreviated as "SV") is a Qt based GUI for power supplies, electronic loads and all sorts of measurement devices like multimeters, LCR meters, scales and so on. "https://sigrok.org/wiki/Sigrok-meter: "sigrok-meter is a special-purpose GUI for libsigrok (written in Python 2/3, using Qt and the libsigrok Python bindings) which supports certain classes of test & measurement devices that usually provide slowly-updating measurement values, such as multimeters (DMMs) or dataloggers."
EIP 545 Counter upgrade - Page 1
Forum section: electronics / testgear

author: psykok
author_rank: Frequent Contributor
timestamp: July 01, 2020, 01:04:14 pm
content: Hi,I scored recently a nice EIP 545 Counter with an non working (or not tested band 3)This instrument is a non A or B version, which looks like an earlier version.Fortunately the user guide and service manual are available:http://bee.mif.pg.gda.pl/ciasteczkowypotwor/Inne/EIP%20545,%20548%20Operation%20&%20Service.pdfOut of the box the counter was working, the only issue was the terribly loud cooling fan .The Power meter section is present on the front panel but without the plastic buttonsHopefully the PCB has all the switchesThe organisation of he CPU board is different from the version A or B.All the EPROM used are from the 2516 type (no 2532 as on the later models)The board 107 with the missing components related to the power meter option

author: psykok
author_rank: Frequent Contributor
timestamp: July 01, 2020, 01:12:26 pm
content: To start the upgrade I had to solve first the buttons issue.I designed the missing part and printed them with my new toy / 3d printerThe results is not perfect but good enough for me.Once in place, it looks really good (even if it’s the wrong color)I have ordered all the needed components to do the upgrade ont he board 107.The only thing I'm not sure is if I need also to upgrade the firmware on the CPU board. I probably see and test it later.
Password level 2 Rohde SMA100A - Page 1
Forum section: electronics / testgear

author: gorang1
author_rank: Newbie
timestamp: June 29, 2020, 05:48:44 pm
content: HII need to measure the internal test points in a Rohde SMA100A signal generator that has a low signal over 3 GHz.Suspects that I must have access to level 2 password for this. Does anyone know what that password is?RegardsGoran

author: SMB784
author_rank: Frequent Contributor
timestamp: June 29, 2020, 07:48:03 pm
content: try "weissbier"

author: gorang1
author_rank: Newbie
timestamp: June 30, 2020, 11:00:36 am
content: Unfortunately, it only takes numbers./Goran

author: gorang1
author_rank: Newbie
timestamp: June 30, 2020, 05:23:33 pm
content: I have now tested this password with a keyboard but it is not correct.Nobody knows what Rohde has for level2 password on their SMA100A signal generators/Goran
Which DC load - Rigol DL3021 or Siglent SDL1020X-E? - Page 1
Forum section: electronics / testgear

author: ahope
author_rank: Contributor
timestamp: October 09, 2019, 08:14:04 am
content: I am looking to purdchase a new DC Load.I will use it for testing (pre)amplifier power supplies, batteries and small(ish) MCU power supplies.I do not need the very highest accuracy, but I like features and programmability.I have narrowed down my search to the DL3021 or the SDL1020X-E. They are within my budget.I noticed it's possible to hack the Rigol to a DL3021A. The SDL1020X-E is missing CP and CR modes as far as I can see.So on paper the Rigol looks better - but what's it like in real life?

author: tautech
author_rank: Super Contributor
timestamp: October 09, 2019, 08:24:41 am
content: Quote from: ahope on October 09, 2019, 08:14:04 amNope.Four static/dynamic modes: CC/CV/CP/CRSee the X-E specs overview at the foot of this page:https://int.siglent.com/products-overview/sdl1000x/Datasheet:https://int.siglent.com/products-document/45.html?DId=39/

author: sjm
author_rank: Contributor
timestamp: June 30, 2020, 03:02:29 pm
content: Well, now I am trying to decide between Rigol DL3021A and Siglent SD1020X. Any ideas? I guess both should be fine, but...BR, -sjm
failed to install operation system for TDS5034B - Page 1
Forum section: electronics / testgear

author: pasta2018
author_rank: Regular Contributor
timestamp: June 28, 2020, 08:35:18 am
content: I followed this link,https://xdevs.com/fix/tds5000b/.first, I install the os with the gho file, and then restart the instrument, it become bluescreen and shows errors as 0x00000007b.Then I removed the HDD to another win2000 system as second drive. open the registry ,select HKEY_LOCAL_MACHINE,load HIVE from WINNT\System\config, I found there are three file named system,one is system(file),one is system.sav,and system.alt, if i choose system(file), enter the name"aaaa",then it will show an error "Registry Editor could not accomplish the requested operation". Have anyone met a similar question, can you help me ,please.

author: pasta2018
author_rank: Regular Contributor
timestamp: June 30, 2020, 01:21:42 am
content: don't know why,I tried again,and it's Ok now,thank TiN,thanks for the link.
Tektronix THS700 tekscope Component-Level Information Package and schematic  - Page 1
Forum section: electronics / testgear

author: R_G_B_
author_rank: Frequent Contributor
timestamp: June 07, 2015, 06:09:22 pm
content: Here is the Component-Level Information Package and schematic for the ths710A ths720A and ths730A:see the links I managed to find these browsing the web:http://www.tequipment.net/assets/1/26/Documents/THS700_Supplement.pdfhttp://kazus.ru/forums/attachment.php?attachmentid=25865&d=1315575619You maybe able to change the bandwidth and functions on the lower end models of this scope.Hope this is ok David jones it seems official.R_G_B

author: Zucca
author_rank: Unknown
timestamp: June 08, 2015, 01:17:15 pm
content: Thanks Santa,I know I was a good kid this year! Soon I will start to dig into it.

author: amindavid11
author_rank: Contributor
timestamp: June 29, 2020, 09:32:01 pm
content: I have a THS720Std and I am trying to "upgrade" it to a Ths720P, are there any hardware differences between the 720std and 720A? I have seen people with the 720std try and modify their scope to a 720P and haven't been successful. maybe the firmware has to be updated and then make the mod to work? If they are identical hardware wise...
Repairing Rigol DM3058E, can I find schematic? - Page 1
Forum section: electronics / testgear

author: reynaldogonzalez
author_rank: Contributor
timestamp: June 29, 2020, 05:34:22 pm
content: Hello,I am seeking to repair a Rigol DM3058E, which has suffered from an overvoltage.Is there anyone that has a schematic?

author: coromonadalix
author_rank: Super Contributor
timestamp: June 29, 2020, 11:59:35 pm
content: never saw leaked schematics for rigol metersAsk rigol directly under an non disclosure agreement witch i doubt they accept ?

author: reynaldogonzalez
author_rank: Contributor
timestamp: June 30, 2020, 04:45:54 am
content: Yeah I figured. I was hoping maybe someone who has done the repair, or similar repairs, perhaps had something basic drawn out.Or could point out a good place to look/start.Thanks
Replacement Tek CRTs and tubes on that auction site - Page 1
Forum section: electronics / testgear

author: HarryDoPECC
author_rank: Regular Contributor
timestamp: July 01, 2020, 12:17:59 pm
content: Heads-up to the group. There is a large collection of vintage Tek/HP CRTs and tubes on that auction site. Seller has inherited the collection and is seeking to have as much as possible go to good homes. I have no association other then being a happy purchaser of an HP3456A (among other items).Store is "Test and Measurement Equipment" seller is "r793a26s7h" - he's a very nice and helpful guy.I'm guessing there may be some things there that are otherwise unobtanium, so hope this is a good result for everyone.Hope others can help to find good use for some of this.
The problem occurred in the firmware update of the RIGOL DS1052E - Page 1
Forum section: electronics / testgear

author: azemati
author_rank: Contributor
timestamp: June 28, 2020, 06:34:11 am
content: Hello friendsI bought a DS1102E from Rigol last month,I have updated its firmware yesterday, at this moment the electricity gone, when it returned I saw the software of DS1102E not coming up,What should I do?It doesn’t work.Do you have any practice for it?Please advise me.

author: tv84
author_rank: Super Contributor
timestamp: June 28, 2020, 09:43:44 am
content: I think you will only solve it by a direct flash via JTAG. Having said that, maybe contacting Rigol is your best solution.

author: azemati
author_rank: Contributor
timestamp: June 28, 2020, 10:08:04 am
content: Thank you for your responseCan you give me a more detailed instructions?

author: tv84
author_rank: Super Contributor
timestamp: June 28, 2020, 10:25:58 am
content: Sorry, I can't help. That scope is uncharted territory for me.

author: lowimpedance
author_rank: Super Contributor
timestamp: June 28, 2020, 10:48:03 am
content: I suggest you check out this thread , but note this scope and thread is getting long in the tooth and Dreig may no longer be contactable.https://www.eevblog.com/forum/blog/the-dark-side-of-the-rigol-hack-bricked-scope-how-to-fix-it/msg18086/#msg18086

author: azemati
author_rank: Contributor
timestamp: June 28, 2020, 11:33:59 am
content: I think your means is DS1102e hackbut I don't want to hack it, I wanted to update the firmware version when the power gone and the main program of the oscilloscope was no running

author: pascal_sweden
author_rank: Super Contributor
timestamp: June 28, 2020, 11:50:30 am
content: The explanation in the link above is to fix a bricked Rigol DS1052E.Whether you bricked your oscilloscope through an improper firmware hack, corrupted firmware due to power cycle, you can fix it using the described procedure.So yes, the instructions also apply to your scope, and not only to scopes who have been "upgraded".

author: azemati
author_rank: Contributor
timestamp: June 28, 2020, 01:20:41 pm
content: OK, thank you so muchI will do it
Rigol DS1054 trigger output - Page 1
Forum section: electronics / testgear

author: Fenichel
author_rank: Contributor
timestamp: June 28, 2020, 04:55:54 am
content: Does anyone have experience with using this feature of the DS1054 oscilloscope?I though I could use it to see how often a rare brief signal (5 us every minute or so) appeared in channel 1 by triggering on channel 1, then running a cable from the trigger output to the input of channel 2, with the time base then set as slow as possible, so that I could watch channel 2.This doesn't seem to work. Channel 2 starts out low, then rises to ~3.4V when channel 1 is triggered, but then channel 2 stays high indefinitely. The manual is nonspecific, but I somehow expected that the Trigger Output would be a pulse, not just a change or state. What am I missing?

author: David Hess
author_rank: Super Contributor
timestamp: June 28, 2020, 03:21:53 pm
content: The trigger output is not really a trigger output; instead it reports the start of a sweep so it really it tracks the waveform acquisition rate. A since it is synchronous with the sweep, monitoring it with the same oscilloscope is not particularly useful. You might connect it to a separate frequency counter.

author: 2N3055
author_rank: Super Contributor
timestamp: June 28, 2020, 04:49:58 pm
content: You can also put scope in peak detect mode and put it on very slow timebase if only number of pulses are important.....
Rigol was working on an MP3 player back in 2001 - Page 1
Forum section: electronics / testgear

author: pascal_sweden
author_rank: Super Contributor
timestamp: June 25, 2020, 07:28:16 pm
content: Dear EEVBlog members,I did an interesting discovery today!Through the Wayback Machine from Archive.org I found out that Rigol was working on an MP3 player back in 2001.https://web.archive.org/web/20010303225004/http://rigol.com/eng/otherproduct/mp3.htmIn attachment you can find a transcript from the webpage in case it would be removed there.I wonder if it would be possible to track down the actual hardware.Maybe we should check with the Rigol management.Anybody here who has contacts with Rigol at the Executive level?

author: Bassman59
author_rank: Super Contributor
timestamp: June 25, 2020, 11:03:42 pm
content: Quote from: pascal_sweden on June 25, 2020, 07:28:16 pmWhy? MP3 players are example code on some microcontroller platforms. The devices themselves have been completely superseded by smartphones.

author: pascal_sweden
author_rank: Super Contributor
timestamp: June 27, 2020, 03:54:53 pm
content: It does not matter at all whether MP3 technology is fairly easy to implement these days!The whole point is to explore Rigol activities in this field from a historical perspective!I am a Rigol fan and want to find out more about their activities around MP3 back in the days.
Plagiarism and lawsuit - Siglent/Atten ADS7000 was a 100% copy of Rigol DS5000 - Page 1
Forum section: electronics / testgear

author: pascal_sweden
author_rank: Super Contributor
timestamp: June 25, 2020, 08:23:16 pm
content: Were Siglent and Atten the same company back in the days?On the Siglent website they talk about the ADS7000 and ADS2000 oscilloscopes in their company history:https://www.siglenteu.com/about/company-history/Atten Electronics was also selling the ADS7000 and the ADS2000 oscilloscopes:https://translate.google.com/translate?hl=nl&sl=zh-CN&tl=en&u=http%3A%2F%2Fwww.zhongkaidz.com%2FADS7000.htmlhttps://translate.google.com/translate?hl=nl&sl=zh-CN&tl=en&u=http%3A%2F%2Fwww.zhongkaidz.com%2FADS2000.htmlThe Atten ADS7000 oscilloscope is in fact a 100% copy of the Rigol DS5000 oscilloscope according to this website:https://translate.google.com/translate?hl=nl&sl=zh-CN&tl=en&u=https%3A%2F%2Fwww.amobbs.com%2Fthread-3540497-1-1.htmlThe link below provides more details about the plagiarism and the lawsuit in court:https://translate.google.com/translate?hl=nl&sl=zh-CN&tl=en&u=http%3A%2F%2Finfo.edu.hc360.com%2Fzt%2F20090803xpy_qq%2Findex.shtmlThe lawsuit refers to Antaixin Group which is the parent company of Siglent:https://translate.google.com/translate?hl=nl&sl=zh-CN&tl=en&u=http%3A%2F%2Fwww.09635.com%2Fcompany%2F2041764.aspx

author: jjoonathan
author_rank: Frequent Contributor
timestamp: June 25, 2020, 08:42:40 pm
content: For anyone else wondering: this is an old DS5000, not the new one with custom silicon.> it is so obvious that Puyuan will lose the case twiceMy sides!

author: 1design
author_rank: Regular Contributor
timestamp: June 25, 2020, 09:58:24 pm
content: I used to own a DS5000, it was sold as Agilent DSO3000 and the PCB was actually marked DSO3000.Rigol was not allowed to sell 1Gsps color screen units outside of China as that was Agilent's market. So the sold 500Msps color units and 1Gsps monochrome units outside China, not to overlap the Agilent offering.Interesting twist of events with Atten/Siglent.Also, so funny and ironic that one Chinese company sues another over plagiarism..pot and kettle situation

author: Bud
author_rank: Super Contributor
timestamp: June 25, 2020, 10:10:13 pm
content: Apparently sawing off IC markings did not work well for someone

author: bluey
author_rank: Regular Contributor
timestamp: June 27, 2020, 12:05:20 pm
content: IP protection in the PRC?Suspect fake news.
Intel BL440ZX/TDS7404 BIOS file - Page 1
Forum section: electronics / testgear

author: acquiric
author_rank: Newbie
timestamp: June 27, 2020, 03:48:49 am
content: Hello,I have a Intel BL440ZX motherboard for a TDS7404 that has a bricked BIOS. I installed the Intel update without realizing that it was incompatible. I see there's a BIOS file on xdevs.com, but it appears to be for IFLASH.exe which my board is not responding to on the recovery floppy disk. I do have the means to manually program the BIOS flash IC with an external programmer, all I need is a 256KB binary dump from someone with a functional board. Would anyone be willing to dump the BIOS with something like UniFlash or flashrom and link it to me?Thanks.
Agilent 54810 USB mass storage - Page 1
Forum section: electronics / testgear

author: Wallace Gasiewicz
author_rank: Super Contributor
timestamp: June 06, 2020, 02:44:04 pm
content: I postedthis in Vintage Computing but I thought I would post it here also.I would like to use USB on my Agilent 54819 scope to transfer files. The USB in Win 98 does not support this.This is Windows 98 FE 4.10.1998The HD is upgraded to 35 Gig SSDThere are some drivers on the net that proclaim to work, just wondering if they ever do workI have no intention of upgrading the OS since the scope works fine, just wanted to download files to USB 1 or 2 so I could transfer files this was instead of floppy.I just wondered if anyone had done this.Waly

author: Halcyon
author_rank: Unknown
timestamp: June 26, 2020, 11:45:24 pm
content: Double-post - Refer to discussion here:https://www.eevblog.com/forum/vintage-computing/using-usb-with-windows-98/
Protek 4000? - Page 1
Forum section: electronics / testgear

author: Vapor8
author_rank: Newbie
timestamp: June 23, 2015, 12:53:38 pm
content: New member here :-)Been looking around at various bench multimeters when I came across this particular one, the Protek 4000:http://www.amazon.com/Protek-4000-Digital-Multimeter-Bench/dp/B00DMFE524/ref=sr_1_26?ie=UTF8&qid=1435063631&sr=8-26I can find little to no information regarding this unit, except for specs. Anyone have any experience with this unit? What about "Protek" - do they generally make descent quality equipment? I've found no reviews, and no mentions of this unit anywhere. It does look like this model has been discontinued, but the price seems pretty good.Thoughts?

author: Vapor8
author_rank: Newbie
timestamp: June 23, 2015, 01:24:12 pm
content: Link to a datasheet:http://www.testequipmentdepot.com/protek/pdf/4000_data.pdf

author: bluey
author_rank: Regular Contributor
timestamp: June 28, 2020, 08:20:39 am
content: Protek brand has been around since 1980, at the time Hung Chang Co Ltd, Seoul. Model 6010 was also Voltcrafts first DMM. There are other probably earlier Voltcraft products at radiomuseum - power supplies could be earlier than 1980???https://www.radiomuseum.org/r/hungchang_multimeter_6010_hc_601.htmlPresently GSInstech makes Protek - 4000 brochure is rather different from the one above:http://www.gsinstech.com/board/DATA/153613029063_t1.pdf

author: CDaniel
author_rank: Frequent Contributor
timestamp: June 28, 2020, 10:54:48 am
content: Bandwidth for AC voltage is just 1KHz , any "serious" good brand multimeter has about 100KHz . This is a good indication about the quality and complexity of the electronics inside ...
Rohde & Schwarz CRTU-RU or CMU-200 Front module spare KB chip  - Page 1
Forum section: electronics / testgear

author: Robert763
author_rank: Super Contributor
timestamp: June 26, 2020, 04:33:45 pm
content: Hi,My CRTU-RU (same as CMU-200) has a keyboard fault. The soft keys under the screen don't work. It's NOT the membrane and having checked pull-ups and decoupling it looks like the P87C552 (8031 clone) keybord controller chip. On this board the PLCC chp is in a socket and marked FMR6P.055. The controller is a FMR6T3.I know some members broke up CRTU's. Does anyone have a spare P87C552?Thanks in advance.Robert G8RPI