hybridfree/eevblog-posts huggingface dataset:
Hantek DSO4102C 100Mhz Scope  Hack to convert to 200Mhz..? - Page 1
Forum section: electronics / testgear

author: just me
author_rank: Contributor
timestamp: November 03, 2018, 01:11:45 am
content: I'm new here and I just purchased a like new Hantek DSO4102c..I see the process to hack the Hantek DSO5000 series is there a hack for the DSO4000 series?. Thanks for any help.Feel free to email me if needed...Thanks.

author: Microcheap
author_rank: Frequent Contributor
timestamp: January 22, 2019, 01:09:14 am
content: I know it is a very late answer, but I've described the method to upgrade BW of the DSO4000 series in this post a few weeks ago:https://www.eevblog.com/forum/testgear/upgrading-the-hantek-dso4072c-osciloscope-bandwidth-from-70mhz-to-200mhz/msg2089726/I hope it will be useful to you.
Tek P5200 HV Diff Probe - Test Leads - Page 1
Forum section: electronics / testgear

author: zitt
author_rank: Regular Contributor
timestamp: January 20, 2019, 09:50:55 pm
content: I recently made an offer for some supposedly tested good diff probes on FleaBay:https://www.ebay.com/itm/Tektronix-P5200-High-Voltage-Differential-Probe/132763210368I have a high side power (current) measurement I need to make and didn't want to fool about with ground loops or risk damaging my scope's front end or the pinball machine I'm measuring.The units have seen some use / look dirty … but the bigger problem appears to be that they are missing the test leads which plug in to the red/black test points.Does anyone know what the specs are for these connections? Do they accept standard multimeter test probes? The parts are due to arrive in a one Tuesday or wed. If possible; I'd like to do a Amazon Prime order for test probes so they are here when the parts arrive?Suggestions? Does anyone KNOW a set that would work?

author: Mechatrommer
author_rank: Super Contributor
timestamp: January 21, 2019, 01:03:12 am
content: Quote from: zitt on January 20, 2019, 09:50:55 pmyes anything that accept that banana plug..Quote from: zitt on January 20, 2019, 09:50:55 pmthis should work. if you think uni-t is expensive one. you may search for other hung low brand around the same keywordhttps://www.ebay.com/itm/UNI-T-UT-C07-Multifunctional-adjustable-test-clip-pincer-Multimeter-Accessories/232397905344?hash=item361bfe9dc0:g:QO4AAOSwLsBZXJad:rk:25:pf:0

author: Hydron
author_rank: Super Contributor
timestamp: January 21, 2019, 08:22:57 am
content: I'd try and minimise the length of lead, too long and you'll get ringing/peaking within the bandwidth of the probe (as occurs with the micsig diff probes).I guess the original length is a good starting point.

author: zitt
author_rank: Regular Contributor
timestamp: January 22, 2019, 08:58:57 am
content: I ordered the probes @Mechatrommer suggested but given the China to US shipping times; I'll probably order some female banana jacks and some miniature clip leads and create some really short clippable adapters so I can put them in the system for testing.For the reasons stated; I don't want really long multimeter cables to avoid coupling noise into the measurements.
Rigol DG811 vs Siglent SDG810 - Page 1
Forum section: electronics / testgear

author: Enceladus
author_rank: Contributor
timestamp: January 20, 2019, 09:17:08 am
content: Hi everyone! I wanted to purchase a reasonably-priced signal generator for my home lab and after reading lots of topics on this and other forums, decided to get Siglent SDG810http://www.saelig.com/sdg800-series/sdg810.htm. I've requested a quote but since it was Friday night I haven't got back from them yet. Meanwhile I found that Rigol released a new low-budget signal generator DG811http://www.saelig.com/product/dg811.htm. It looks pretty similar to SDG810, although it has slightly bigger resolution (16bit vs 14bit). Has anyone used it before? Is it better than SDG810 or I should stick to a well known option? Thanks!

author: tautech
author_rank: Super Contributor
timestamp: January 20, 2019, 10:11:03 am
content: For another ~$80 the SDG1032X is a far better AWG. 30 MHz, 2chandhackable to 60 MHz and does sine and square wave to max frequency.I've sold a good # of 810's but for a bit more and 2 channels the 1032X is a better investment.....if you can spring for the bit more cost.Oh, and the SDG810 doesn't have LAN.https://www.siglentamerica.com/download/2357/(SDG800)http://www.siglentamerica.com/wp-content/uploads/dlm_uploads/2017/10/SDG1000X_DataSheet_DS0201X_E01E.pdf

author: Enceladus
author_rank: Contributor
timestamp: January 20, 2019, 10:55:33 am
content: OK, now I'm confused. Obviously SDG1032X will have more features, no doubts. I wouldn't say that the absence of LAN is an issue for me but a second output channel is a big thing. But when I searched for this model, I've found thins linkhttps://core-electronics.com.au/siglent-sdg1032x-arbitrary-waveform-generator.html. And it says that it's obsolete and has been replaced by DG1032Z which is from Rigol! I don't understandI would like to find an Australian supplier as shipping from US costs a fortune.

author: tautech
author_rank: Super Contributor
timestamp: January 20, 2019, 11:19:42 am
content: https://www.triotest.com.au/store/204-siglent-technologiesTriotest are the Aussie Siglent authorized master agents.What their resellers choose to stock is their decision.Threads:https://www.eevblog.com/forum/testgear/siglent-sdg1000x-waveform-generators/https://www.eevblog.com/forum/testgear/the-sdg1000-and-sdg800-thread/
Siglent SDS2000X History and memory - Page 1
Forum section: electronics / testgear

author: EEBlackSheep
author_rank: Contributor
timestamp: January 21, 2019, 05:00:54 am
content: I have a Siglent SDS2000X and have a couple of questions that I cannot get an answer from the manual. Currently I am using it for ignition analysis so the timebase is quite slow (100us)(1) I am using the history button to view previous triggered captures. Sometimes it capture up to 100+ frames, sometimes just 30 frames., Sometimes just on frame - no longer how long I lave it running. How do I set the memory depth of the frames?(2) I need to capture a very long waveform (about 1 minutes worth) at a time resolution of 100us. Similar to a data logger. Can the SDS 2000X do this - how do I "scroll" back through the data?thanks!

author: Rerouter
author_rank: Super Contributor
timestamp: January 21, 2019, 05:28:51 am
content: Sequence mode would get you close. If you know what your triggering on and only need short. You can get a lot of stuff at a small timebase. For any point across 1 minute will require juggling time resolution vs memory depth. At max memory depth and on a timebase of 5s/div you would capture more than a minute of data. But i dont think you would have many points left at 100usIncase you dont know there is a timebase zoom. Press the timebase encoder and it will show a zoom window on screen

author: tautech
author_rank: Super Contributor
timestamp: January 21, 2019, 06:37:50 am
content: Quote from: EEBlackSheep on January 21, 2019, 05:00:54 amCaptured memory WRT the total memory available is a function of sampling rate, timebase setting and memory depth setting. You can set the memory depth in the Acquire menu.For the SDS2kX you have 140 M of memory and I think some further buffer. (rf-loop will correct me on this)Have a look at the settings used in this example using Sequence mode in the 14 M memory SDS1104X-E:https://www.eevblog.com/forum/testgear/siglent-sds1204x-e-released-for-domestic-markets-in-china/msg2096347/#msg2096347You also have Sequence mode so have a look at image 4 in the above link to see the process used to examine each saved segment.I might also ask, why such a long record needed ?Could you set a specific trigger setting to find what you are looking for ?

author: EEBlackSheep
author_rank: Contributor
timestamp: January 21, 2019, 10:27:17 pm
content: Great info thanks guys.The reason for a long record is really I am using it as a data logger for automotive ignition systems. Searching for patterns of which I do not yet know the characteristics.
Ultra Sigma without a scope - Page 1
Forum section: electronics / testgear

author: rowifi
author_rank: Contributor
timestamp: January 20, 2019, 11:07:00 am
content: I have waveforms wfm files saved from a DS7000 scope - I now don't have the scope. Can I use ultra sigma to view and measure with those stored waveforms .. as if I were using a 'virtual scope'.When starting US it seems to want to connect to a scope.. or am I missing something.

author: rowifi
author_rank: Contributor
timestamp: January 20, 2019, 01:20:09 pm
content: OK. Thanks for that.I guess the answer to the original question is 'No'.. it needs a device.I'll give it a go
Need Older Version of TekVISA OpenChoice - Page 1
Forum section: electronics / testgear

author: haertig
author_rank: Newbie
timestamp: January 19, 2018, 02:32:38 am
content: I need a copy of a version of TekVISA OpenChoice that will run under Windows XP.Anybody have one they could share?Thanks!Gray

author: Vlad_01
author_rank: Newbie
timestamp: January 20, 2019, 08:18:52 am
content: Join, me too.

author: alm
author_rank: Super Contributor
timestamp: January 20, 2019, 10:21:24 am
content: This might work:https://www.cap.bnl.gov/MERIT/PCMerit05%20Data/optical%20diagnostic%20software/Tektronix/
Soldering Iron Questions - Page 1
Forum section: electronics / testgear

author: epic_ziver_D
author_rank: Newbie
timestamp: January 18, 2019, 10:02:25 pm
content: I was unable to find any information about this,What is the difference between TS-100 and SainSmart ToolPAC PRO32?And what is better to buy, a TS-100 or one of thesehttp://bit.ly/2DtoywSor some banggood FX-951/888D knockoff (I can't really get a real one cuz cheapest I can get one where I live is at least 170$ which I cannot afford rn)And in terms of tips, if I get a TS-100 should I buy the TS-100 shorter tips or will long ones do? and if I get T12 Hakko tips should I get original ones or are knockoff ones fine?These are a few questions which I have been having a hard time finding a good answer to and would really appreciate any helpEDIT: I just noticed I put this in the wrong topic, no idea how to move it...

author: Candid
author_rank: Regular Contributor
timestamp: January 19, 2019, 05:11:30 pm
content: The SainSmart ToolPAC PRO32 is a derivate of the TS-100. There is no difference despite the different name. The KSGER T12 Digital Temperature Controller Soldering Station is as far as I can say (don't own one) a good tool especially for the price. I personally own a TS-100 and Hakkp FX951 knockoff and some older Ersas. I like the Hakko knockoff and use it as my daly tool. The TS-100 I only use if I have a good reason to do, it has not much power and isn't very handy. What I am missing with the Hakko knockoff is a standby mode.Looking for the best price/function factor I think the KSGER T12 would be the best decision. The knockoff Tips I use with the Hakko and TS-100 are doing fine for me.
D-Q meaning in LCR meter  - Page 1
Forum section: electronics / testgear

author: hussamaldean
author_rank: Unknown
timestamp: January 20, 2019, 09:54:17 am
content: Hi all,I recently got myself a new LCR meter which is Uni-t UT612 LCR meter which work absolutely greatanyway, since I am new in LCR meter world, I want to know what D and Q mean.according to the manual, D & Q are loss and quality factors respectively.regards

author: bugi
author_rank: Regular Contributor
timestamp: January 20, 2019, 11:52:56 am
content: https://www.google.com/search?q=LCR+meter+D+and+Q... Seems to give some decent hits, although many seem to have quite short non-layman descriptions. But at least this video has Mr. Carlson's thumbs up (in comments):And then of course, wikipedia:https://en.wikipedia.org/wiki/Dissipation_factorhttps://en.wikipedia.org/wiki/Q_factor(see especially "individual reactive components")Maybe those can help at least half a step forward.

author: coromonadalix
author_rank: Super Contributor
timestamp: January 20, 2019, 04:17:05 pm
content: i think its those 2 :http://www.capacitorguide.com/q-factor/https://www.illinoiscapacitor.com/pdf/Papers/impendance_dissipation_factor_ESR.pdf
Tek TLA5204B, what's it worth? - Page 1
Forum section: electronics / testgear

author: jeroen74
author_rank: Frequent Contributor
timestamp: January 19, 2019, 01:15:55 pm
content: I have one of these, with one 16 channel flying lead adapter, one Mictor cable adapter and the BNC cable set to connect it to a scope, in pristine condition.I got this analyser from my previous employer which went out of business a few months ago, I used it a couple of times during my time there.It just sitting here gathering dust (the way it has spent most of its life) and as I have no real use for it, I might just sell it. What's a reasonable price?

author: coromonadalix
author_rank: Super Contributor
timestamp: January 19, 2019, 02:10:21 pm
content: If its in very good shape check some Ebays listings, some goes up to 4k$$

author: TiN
author_rank: Super Contributor
timestamp: January 19, 2019, 02:31:06 pm
content: I don't see much point in 5204B, as you can get 715+ modules for few hundred $$, which is far more capable and expandable.For under 2K$ it's possible to get modern TLA7012 even.

author: nctnico
author_rank: Super Contributor
timestamp: January 19, 2019, 04:03:28 pm
content: Quote from: TiN on January 19, 2019, 02:31:06 pmI have to agree. And the European market is even tougher. Maybe 200 euro if you are lucky. Just keep it. It is probably worth more to keep then to sell.
Datron 1081 firmware - Page 1
Forum section: electronics / testgear

author: splin
author_rank: Frequent Contributor
timestamp: January 22, 2019, 02:28:31 am
content: Does anyone have, or know where I can find them, a set of firmware images of the three CPU board ROMs plus the GPIB ROM?I have a 1081 and had planned to upgrade it by installing a GPIB board from a 1061. Unfortunately, it turns out that the the GPIB ROM has to match the mainboard ROMs so it won't work. FWIW I found two different versions of the CPU board ROM images here, but sadly they don't include the GPIB ROMs:http://rfscientific.eu/memory-dump-directoryI disssasembled the 1081 firmware and the 1071 firmware from w.ko4bb.com which does include the GPIB ROM image. The GPIB code directly calls/jumps to address in the main code (rather than going through jump tables) which are, not surprisingly, in different locations in the 1071 and 1081 ROMS. At least some of the routines are identical however so I may be able to fix up the 1071 GPIB ROM to work with the 1081 ROMs but it could take a lot of work - especially if the RAM data layout has changed significantly as well.
Remotely getting data from an 8902A Keypad - Page 1
Forum section: electronics / testgear

author: Tony_G
author_rank: Super Contributor
timestamp: January 18, 2019, 06:53:35 pm
content: Hey All,I ran over a mention of some old software for the 8902A (actually the full test system setup 8902S):QuoteDoes anyone happen to know how this would be done? I can't seem to find the right commands in either the 8902A or HP Basic 6.3 manuals to do this.Thinking about how it might be done I came up with:8902A Command that gathers data from the keypad8902A Command that asks the user for some setting value and then the software reads that value and resets itSame as the above but the command generates an SRQ when the value changes8902A "undocumented" mode that echoes the keypad to the HPIB port8902A diagnostic mode that returns front panel keypress info via HPIB8902A register that holds last keypad entry even when keypad under lockoutHP Basic command that tells the device to get user inputSome combination of the aboveI have a viper card so I could just run the original software to see what it issues on the bus but I can't seem to find a copy of it.Anyone have any thoughts/suggestions?Thanks,TonyG
DSOX1102G segmented memory? - Page 1
Forum section: electronics / testgear

author: alager
author_rank: Newbie
timestamp: January 18, 2019, 05:54:05 pm
content: Following various blogs about segmented memory, like this one:https://community.keysight.com/community/keysight-blogs/oscilloscopes/blog/2017/02/01/how-segmented-memory-can-help-find-dinosaursI tried it on my scope, with not so good results. Am I misunderstanding something?Attached isthe RF burst test waveform at 20us/div (looks good)20ms/div, then using the zoom feature (looks good)then simply turn on segmented memory and the signal goes to crap.My understanding is that the segmented memory mode should simply ignore the dead time between samples.Please enlighten me, as this does not seem to match the marketing pitch for this feature. Do I need to change the trigger somehow?Thanks

author: maginnovision
author_rank: Super Contributor
timestamp: January 18, 2019, 06:28:25 pm
content: Just looks like your sample rate took a massive hit. Typically you turn the timebase down to see what you want, then use segmented mode to get many different captures. You don't, especially on a scope with so little memory, want to pull the timebase out and run in segmented mode. So you'd want to do 20us and then segmented for potentially best results. Then you should get multiple high detail captures as opposed to your low detail long timebase + zoom. That'll get you the most bang for buck out of the memory you have.Final edit: 20ms and zoom does not look good.

author: alager
author_rank: Newbie
timestamp: January 18, 2019, 06:46:09 pm
content: Okay, I just did as you suggested, and that seems to work and make sense. I guess my main confusion was form all the Keysight videos and blogs, they didn't demo it the way you just explained it.Thanks!

author: maginnovision
author_rank: Super Contributor
timestamp: January 18, 2019, 06:51:49 pm
content: Yea, I haven't seen their videos on that but I could tell where the confusion was. Segmented memory is really nice because it saves you from wasting memory on the dead time between triggers.
Simple csv files to bar charts, line charts or pie, viewer program, request. - Page 1
Forum section: electronics / testgear

author: sotos
author_rank: Frequent Contributor
timestamp: January 18, 2019, 06:58:46 am
content: Simple csv files to bar charts, line charts or pie, viewer program, request.I have a Bluetooth temperature meter and temperatures are saved as csv files. Is there any simple viewer to display the file?

author: HKJ
author_rank: Super Contributor
timestamp: January 18, 2019, 08:51:10 am
content: You could use the spreadsheet in "Libre Office", it is not the most simple solution, but very flexible.

author: Fungus
author_rank: Super Contributor
timestamp: January 18, 2019, 08:53:04 am
content: Some sort of "spreadsheet" program?

author: Gege34
author_rank: Contributor
timestamp: January 18, 2019, 10:05:56 am
content: gnuplot(howto) orsample
HP 5316A input question - Page 1
Forum section: electronics / testgear

author: belzrebuth
author_rank: Frequent Contributor
timestamp: January 19, 2019, 01:57:41 pm
content: I was wondering if I can use my newly aquired 5316A to measure signals of amplitude about 12-15Vpp.(might be double that from the instruments' ground)The instrument's manual states that the damage level is 250V (DC+AC) but I thought I should ask anyway.Would it be safer to use 10x attenuation (ie. scope probe) or a normal BNC is okay?Signals under test most probably won't exceed 25V regarding earth..
Dodgy Multimeter - Page 1
Forum section: electronics / testgear

author: SyazTYT
author_rank: Newbie
timestamp: January 18, 2019, 07:02:26 am
content: I found a cheap-ass multimeter... I have bought it and it works great but I think Dave should do a teardown of it!BSIDE ADM62 True RMS Multimeterhttps://www.aliexpress.com/item/BSIDE-ADM62-True-RMS-Digital-Multimeter-Auto-Range-DMM-Dual-Slot-TRMS-Voltmeter-Ammeter-Ohmmeter-Diode/32883337539.html?spm=2114.search0604.0.0.65436969lrQNxb

author: beanflying
author_rank: Super Contributor
timestamp: January 18, 2019, 07:18:31 am
content: Smells like spam on the BBQ to me?

author: 001
author_rank: Super Contributor
timestamp: January 18, 2019, 07:19:54 am
content: After 2016 Zotek/Aneng relize of DTM0660 based AN8002 etc other cheap meters goes retro

author: ataradov
author_rank: Super Contributor
timestamp: January 18, 2019, 07:45:21 am
content: Yeah, I vote spam.

author: Fungus
author_rank: Super Contributor
timestamp: January 18, 2019, 08:16:08 am
content: Quote from: SyazTYT on January 18, 2019, 07:02:26 amDave doesn't have to to review every $10 multimeter on the market.Maybe you could take the back off and post photos of what's inside. We can count the MOVs, etc., and comment on the layout and components ourselves. There are some very knowledgeable people here.Maybe you could send one to joe smith so he can zap it with his machine and report on robustness.
EXTECH 22-816 Resistance Calibration - Page 1
Forum section: electronics / testgear

author: Dale1Paul
author_rank: Newbie
timestamp: January 17, 2019, 06:30:26 pm
content: My EXTECH 22-186 multimeter resistance with the probes crossed reads between .4 and .5 ohms. Can one of the VR be adjusted to bring this down to zero? I've worked as a hobby and JOB in electronics since I was a pre-teen, so have experience working on such devices, plus I'm a general ham radio operator. Any assistance would be greatly appreciated, thank you. Dale Appleton K2DPA.

author: retiredcaps
author_rank: Super Contributor
timestamp: January 17, 2019, 07:01:35 pm
content: Nothing wrong with 0.4 or 0.5 ohms. You can try cleaning your probe tips and input jacks with IPA or you can try a different set of probes to see if you get the same result.On most of my meters, I get between 0.1 and 0.2 ohms. The crappier ones can go as high as 0.8 ohms.

author: Dale1Paul
author_rank: Newbie
timestamp: January 17, 2019, 08:57:07 pm
content: That does make me feel comfortable with the meter and probes. Thanx.
Owon ODP 3033 Bench Power Supply fans and buzzer issues - Page 1
Forum section: electronics / testgear

author: highroller
author_rank: Contributor
timestamp: January 27, 2019, 07:42:23 pm
content: Hi,I own an OWON ODP 3033 bench power supply with firmware v 2.5.0.The set voltage and current parameters are in spec and the unit is very responsive and shut down quickly on OVP/OVC.But the two cooling fans are not running at all (with or without load) and the buzzer is set to "ON" in the menu but it does not beep on startup or keystroke (it beep only when there is an OVP/OVC condition).I'm wondering if these two issues may be related to the firmware and if I have the latest version installed.I assume the fan should run at startup and increase/decrease airflow on power requirement like other similar PSU ?The main board is v 1.0 2017-03-15I'm waiting for a response from OWON but I'm curious to know if other owner had similar issues with their ODP unit.Thanks
Fluke Hacking? - Page 1
Forum section: electronics / testgear

author: schneiderbecket
author_rank: Newbie
timestamp: January 15, 2019, 05:20:53 am
content: As perhttps://youtu.be/dRxSJ8f8az0?t=473Fluke 353 appears to be hackable/"user upgradeable" and I know I've seen a good bit of electronic test equipment hacking on the youtube channel but I'm not sure who all here is interested. Maybe EEVBlog will enjoy this?PS. I just registered here but I've been a long time watcher and have learned tons!

author: Nominal Animal
author_rank: Super Contributor
timestamp: January 15, 2019, 08:47:31 am
content: If anyone does have a working Fluke 353 clamp meter, consider helpingAvEout. (He made the above video.) His has the dial hoopajooped (no detents), and he'd love to get the measurements for 3D printing a new one. I bet a few pictures of an actual working dial assembly (plastic parts) would do the trick.

author: PTR_1275
author_rank: Frequent Contributor
timestamp: January 15, 2019, 10:35:14 am
content: Any idea how to message him?I looked at messaging through YouTube but couldn’t see if I can.I have a 355 with a smashed lcd screen I’m happy to send him as long as he is happy to cover postage costs back to me once he’s finished with it. lcds are available as replacements, but that’s in my huge “todo pile”

author: Nominal Animal
author_rank: Super Contributor
timestamp: January 16, 2019, 02:32:29 am
content: Quote from: PTR_1275 on January 15, 2019, 10:35:14 amComment on that video, he'll find a way unless he already got good enough pics.
YBD868 Mains-powered Digital IC Tester? - Page 1
Forum section: electronics / testgear

author: Chris56000
author_rank: Frequent Contributor
timestamp: July 26, 2018, 01:37:27 pm
content: Hi!Has anyone bought and tried out one of these YBD 868 "Digital IC Tester" devices yet?LINK:-https://www.ebay.com/itm/Digital-IC-tester-integrated-circuit-measuring-testing-instrument-YBD-868-Y-/183260818109Opinions? Any use?How about a teardown, or are they just a very expensive smaller type in a nice box & PSU?Chris Williams

author: alan8086
author_rank: Newbie
timestamp: January 16, 2019, 12:59:15 am
content: I'm also looking at this IC tester - seems to have too many devices in its catalogue to be some ebay cheapness?I have vintage computers I want to repair and this device seems the nearest I can get to my ABI Electronics DDS 40XP unit which broke some time ago.Has anyone used the YD868?Thanks for your comments
R&S FSEB Probe Power connector indentifaction - Page 1
Forum section: electronics / testgear

author: hscade
author_rank: Contributor
timestamp: January 15, 2019, 09:19:07 am
content: Hello Guys,I'm searching for the name/type of the 3-pin probe power connector (from a FSEB Spectrum Analyzer; see attachement).Hopefully some clever guy knows it.I'm also wondering why they mention that it is compatible with HP probe connectors. My HP 54701A uses a Lemo FGG.0B.307 connectorThanks in advance!
Augmented Reality for Multimeters: Multimeter read-out integrated in glasses - Page 1
Forum section: electronics / testgear

author: pascal_sweden
author_rank: Super Contributor
timestamp: January 14, 2019, 08:56:45 pm
content: This German project integrates the Multimeter read-out in glasses, to facilitate measurements for the engineer wearing the glasses:https://www.heise.de/make/projekte/Arduino-Datenbrille-Ein-HMD-fuer-das-Multimeter-3339628.htmlThey talk about the "Arduino computer" glasses with Augmented Reality for Multimeter read-outs.Very nice idea in my opinion!NB: The website is in German, but Google Translate is your friend here!
Uni Trend UT71B interface program (V3.00) problem - Page 1
Forum section: electronics / testgear

author: DisasterNow
author_rank: Regular Contributor
timestamp: January 11, 2019, 08:20:28 pm
content: hello nice forumI have two multimeters Uni Trend UT71B, and I install the software interface program V3.00 (UT71A_B version)If I open the program, the scale of the graph is correct (20000 counts)But if I send the data (usb cable) from the multimeter, the data value is correct, but the scale of the graph is not correct(is 20, it should be 20,000), in this way the graph is not correct (it is out of scale at the top), because the value is DCV 05,035 (05035 counts)and therefore their peak is out of chartI tested all two multimeters, on two computer, on windows 8 and windows 7, i install the cd software and web software, but the result is always the same(i have for test install the interface program UT71C_D_E, (but is for 40000 count, not 20000..) and the vision is correct...(but the scale is 40000 counts, not 20000)I have no more ideasI looked for previous versions to take a test (UT71A_B 1,10 or 2,00) but I can not find themyou have some advice for me?thanks (sorry for traslate language..)

author: DisasterNow
author_rank: Regular Contributor
timestamp: January 15, 2019, 03:36:21 pm
content: nobody has the multimeter UT71A-B (or C-D-E) to help me?it was however a pleasure...

author: WhichEnt2
author_rank: Regular Contributor
timestamp: January 16, 2019, 02:35:54 pm
content: Quote from: DisasterNow on January 11, 2019, 08:20:28 pmhttps://www.eevblog.com/forum/testgear/uni-t-ut71d-review/msg1211000/#msg1211000

author: DisasterNow
author_rank: Regular Contributor
timestamp: January 16, 2019, 11:49:14 pm
content: Quote from: WhichEnt2 on January 16, 2019, 02:35:54 pmthanks WhichEnt2.dropbox file is interface program 1.10 UT71CDEI have UT71B, I need interface program 1.10 (or2.0) UT71Bwho has the software UT71CDE, should also have the software UT71B...I wrote in private at Wytnucls (review author), but he does not answerif someone has the UT71 multimeter (A,B,C,D or E), and has the UT interface program ver.1.10 or 2.0,I am ready to receive itthanks(sorry for my language, I'm italian girl)
Keysight Agilent U1241B Handheld DMM Teardown video and High resolution images - Page 1
Forum section: electronics / testgear

author: fanOfeeDIY
author_rank: Unknown
timestamp: January 14, 2019, 01:20:55 pm
content: I uploaded a Keysight U1241B teardown video.I am planning to upload the picture images in this thread when I get the time to trim them.
Siglent SDG-2000X alternative software? - Page 1
Forum section: electronics / testgear

author: ebastler
author_rank: Super Contributor
timestamp: December 30, 2018, 10:52:53 am
content: Santa brought an SDG 2042X signal generator. Great little instrument, but the PC software is a weakness. I find the Windows software awkward to use; it needs the bulky NI-VISA runtime to do its (limited) thing; and worst of all, the NI-VISA runtime seems to interfere with the USB connection to my Rigol scope.Is there any alternative PC software for the Siglent SDGs? I'm happy to prepare waveforms offline, say via an Excel sheet. Just some lightweight way to convert files to the Siglent wave format, and ideally upload them directly (via a USB or LAN connection), would be great.Thanks for any pointers you might have!

author: tautech
author_rank: Super Contributor
timestamp: December 30, 2018, 11:59:04 am
content: Have a look here:https://www.eevblog.com/forum/testgear/open-source-lxi-tools-and-liblxi-v1-0-released-for-gnulinux/msg1318434/#msg1318434More help videos here:https://www.siglentamerica.com/videos/sdg2000x-series/

author: voltsandjolts
author_rank: Unknown
timestamp: December 30, 2018, 12:57:34 pm
content: I prefer GNU Octave (similar to MATLAB) for generating arb waveforms.I have a simple script for creating CSV files which can be loaded to the sig gen by USB stick or via the Siglent easywave software.Script available here:https://www.eevblog.com/forum/testgear/siglent-sdg1000-arbitrary-csv-file-format/msg1973726/#msg1973726Good purchase BTW, I am very happy with my SDG2042X

author: ebastler
author_rank: Super Contributor
timestamp: December 30, 2018, 01:22:47 pm
content: Thank you both, tautech and voltsandjolts!I had not realized that, when reading from a USB stick, the SDG actually expects CSV files rather than binary data. (Although, with hindsight, the user manual does actually state that.) So transferring a CSV via the USB stick seems like the most straightforward path.I will experiment with the VXI Tools as well. It looks like I will need to create some additional script to send wave data in the expected format, but avoiding the need to plug and unplug the USB stick repeatedly would be nice.I'm happy for now; no need to reinstall NI VISA anytime soon! ;-)

author: tautech
author_rank: Super Contributor
timestamp: January 14, 2019, 11:13:47 am
content: Quote from: ebastler on December 30, 2018, 01:22:47 pmMember beanflying has just gone through the same issues and with further hunting for him there are more drivers available for other SW platforms:https://www.siglenteu.com/service-and-support/firmware-software/waveform-generators/#sdg2000x-series

author: beanflying
author_rank: Super Contributor
timestamp: January 14, 2019, 11:30:31 am
content: Yep not well documented and NI-VISA is really fat. Perhaps Eblaster rewrite your first post or add any links that come up? The included instructions with the unit are lacking in links.By comparison my Feeltech Sig Gen managed Graphical Arb Generartion and replicated the front panel controls in under 10Mb Total.
Hitachi v1100 oscilloscope - Page 1
Forum section: electronics / testgear

author: Ct1jrz
author_rank: Contributor
timestamp: October 19, 2017, 03:57:26 pm
content: HelloI´m thinking of purchase an old oscilloscope Hitachi V1100.Found it on the web for a nice price.I already search every were for the user/service manual. But it´s almost impossibleNeed to know if any one have, or know were i can find more info about this unit?Thank you all for the opportunity

author: kalel
author_rank: Frequent Contributor
timestamp: October 19, 2017, 04:25:22 pm
content: I only found the "A" version, which is probably completely different:http://hitachi.industrialpartner.com/products-v/v1100.htm

author: UdaYagi
author_rank: Newbie
timestamp: July 22, 2018, 04:09:26 pm
content: I have just managed to get one of these scopes from the engineer at work, with the manual.Maybe too late to help you Ct1jrz, but is this something I should post somewhere? I would love some help discovering this new to me scope as its my first. They were about to throw it away at work because it has some glitches. It appears everything is there and working but the when using some knobs there is signal noise on an otherwise flat trace. It has come from an industrial environment so I plan to start with cleaning it out.

author: Ct1jrz
author_rank: Contributor
timestamp: January 14, 2019, 11:26:39 am
content: Thanks for your help.Nice unit you have there UdaYagi! More clean then mine. I did get one.I see that you get maybe the original probe. Nice! I just get the unit it self.I still did not found any manual... If you can arrange one pdf from your manual it will be great.Mine have some issues on the knobs. But I´d like to make a full restoration...Best regards
High-quality Test leads (i.e. Dupont jumper wires) - Page 1
Forum section: electronics / testgear

author: Sarcarean
author_rank: Contributor
timestamp: January 12, 2019, 08:01:11 am
content: Does anyone know a supplier / part number for high quality test leads?For example, I have a set of these for my Saleae Logic and they are great:https://usd.saleae.com/collections/accessories/products/wire-harness-97So it would be great to know who made those and where I could order custom arrangements (2x5 for example).

author: tggzzz
author_rank: Super Contributor
timestamp: January 12, 2019, 09:31:17 am
content: Quote from: Sarcarean on January 12, 2019, 08:01:11 amDefinitely high quality, with a price to match:https://www.digikey.co.uk/product-detail/en/pomona-electronics/5342/501-1407-ND/737265https://www.digikey.co.uk/product-detail/en/amphenol-times-microwave-systems/CLS40-KMKM-02.50F/1946-1008-ND/9644008https://www.digikey.co.uk/product-detail/en/pomona-electronics/EM5223-120/501-2046-ND/6125860

author: Neomys Sapiens
author_rank: Super Contributor
timestamp: January 13, 2019, 10:12:46 pm
content: If by 'Dupont' you mean 0.64mm square:SKS (formerly Hirschmann)They have Jumpers of about 20cm and 1m leads with 4mm at one side.They also sell the contacts (with shroud) which take a larger wire than most. You can crim 0.25mm³ silicone test lead wire to them. If you look through my older posts, somewhere there's more info.
Tracking generator for HP 8567a - Page 1
Forum section: electronics / testgear

author: L_Euler
author_rank: Regular Contributor
timestamp: January 10, 2019, 07:51:53 pm
content: Can anyone recommend a tracking generator for use with a HP 8567A?

author: swingbyte1
author_rank: Contributor
timestamp: January 11, 2019, 07:03:10 am
content: Hi. The common to suggestion is the 8444a. But they only go to 1.5ghz. the internal look isn't stable enough but an external sg can be used. For higher freq you will have to roll your own. See k5fx site for 8566 the experimentsSent from my Nexus 5 using Tapatalk

author: L_Euler
author_rank: Regular Contributor
timestamp: January 12, 2019, 08:34:56 pm
content: Thanks, my 87 only goes to 1.5GHz anyway.

author: PA2HK
author_rank: Contributor
timestamp: January 13, 2019, 11:44:44 am
content: For that HP8444A to work in combination with your 8567A, the tracking generator needs to be equipped with option 059 (1500MHz) or alternatively option 058 allowing up to 1300Mhz. A bare HP8444A without option 058 or 059 is designed to work with modules of the venerable HP141T spectrum analyzer system and will not work with your analyzer.
Infrared thermal camera and humidity measuring device for house - Page 1
Forum section: electronics / testgear

author: dreno
author_rank: Contributor
timestamp: January 13, 2019, 12:00:23 am
content: Hi,while looking for meters I saw that you can buy electronics pretty cheap on aliexpress or banggood. I am thinking now about getting some more stuff for my house.I was thinking about a thermal camera for finding cold spots or locating floor heating pipes.Also I need to buy a reliable humidity measuring device (for testing like humidity of walls or maybe wood).Maybe somebody here knows already some good devices and can give me a start in the jungle of devices ;-)dreno

author: luma
author_rank: Regular Contributor
timestamp: January 13, 2019, 04:25:01 am
content: I'll bet you'll find more answersover here.
Compatible Graphics Tablet for Analogic/Data Precision 2045 - Page 1
Forum section: electronics / testgear

author: KWKolb
author_rank: Contributor
timestamp: January 08, 2019, 04:24:27 am
content: I won an Analogic/Data Precision Polynomial Waveform Synthesizer model 2045. It has a "Tablet Draw" mode that allows you to "draw" a waveform using a digitizing tablet and have it appear on an oscilloscope as it's being drawn.The Analogic user manual specifies a Cherry model 1510 graphics tablet with a four key drawing puck. The tablet communicates with the synthesizer over RS-232 and the manual provides settings for the tablet. I'd like to find a compatible tablet and/or emulate it.Is there a communications standard digitizing tablets used in the early 80's?Any recommendations on something that is compatible with the Cherry 1510 (eg, something from Kurta, Handipad, Wacom perhaps)?Thanks,Kevin

author: Epatsellis
author_rank: Newbie
timestamp: January 13, 2019, 03:54:53 am
content: Summagraphics was the "standard" that was used in the early 80's. Serial versions abound relatively inexpensively.
RS232 to USB for Agilent equipment? - Page 1
Forum section: electronics / testgear

author: Tracker
author_rank: Regular Contributor
timestamp: January 11, 2019, 06:19:40 pm
content: Hi Folks,I'd like to control my Agilent kit using Command Expert.But Agilent charge a small fortune for the USB-RS 232 cable.What are the options?Are there chinese clones out there?ThanksTracker

author: Tracker
author_rank: Regular Contributor
timestamp: January 11, 2019, 07:41:06 pm
content: I wonder if these wouild work?a DB9 null modem cablehttps://www.ebay.co.uk/itm/2m-9-Pin-DB9-Serial-RS232-NULL-Modem-High-Speed-Shielded-Cable-008438/381778962327and a USB to RS232 adapterhttps://www.ebay.co.uk/itm/Newlink-HQ-USB-to-Serial-9-pin-RS-232-Adapter-Cable/190607752656Thoughts?Thanks

author: Tracker
author_rank: Regular Contributor
timestamp: January 11, 2019, 09:57:50 pm
content: Anybody?

author: Kosmic
author_rank: Super Contributor
timestamp: January 12, 2019, 02:18:37 am
content: Yes my 34401a is connected like that.Null modem rs232 cable + cheap rs232 to usb.https://www.ebay.ca/itm/USB-To-RS232-Serial-Converter-Cable-Adapter-DB9-for-PDA-Windows-7-32-64-Bit-OS/390681505894?hash=item5af66eb066:g:LrgAAOSwpkFY5IvX:rk:3:pf:0Working fine with Keysight softwares.

author: Tracker
author_rank: Regular Contributor
timestamp: January 12, 2019, 11:18:36 am
content: Great!Much appriciated.
Darn HP scope with the power switch in the back.  - Page 1
Forum section: electronics / testgear

author: Tim88
author_rank: Regular Contributor
timestamp: January 11, 2019, 08:36:40 pm
content: Finally got my HP54502A scope back together and passed all calibration tests. I replaced the Schaffner filter switch which had been acting funny then read here they can explode! Replaced the Dallas chip with a new one, soldered in a DIP socket for easy future removal. That was a real pain to remove by the by. Checked all the caps, only replaced a couple small ones that were a bit leaky. The thing was spotless inside, looks like it was hardly ever used. I like it, but, that doggone power switch in the back really blows. So, was thinking of running a switched power outlet to the front of my bench. Any foreseeable issues with that???
Telequipment D61 - Photos - Page 1
Forum section: electronics / testgear

author: kedr_vostok
author_rank: Contributor
timestamp: September 06, 2015, 08:04:59 am
content: I wanted to share this 10MHz Telequipment that I bought when my university was having a clean out. It still works ok for a scope from 1974. Anyone seen or used one of these before?If anyone is interested the service manual is available from herehttp://bee.mif.pg.gda.pl/ciasteczkowypotwor/Telequipment/d61_sm.pdfI have just bought the Rigol 1054z so I'm moving up in the world.

author: SeanB
author_rank: Super Contributor
timestamp: September 06, 2015, 08:22:48 am
content: I have a soft spot for those scopes. Simple, easy to use and reliable.

author: tautech
author_rank: Super Contributor
timestamp: September 06, 2015, 08:36:03 am
content: I had a Telequipment D81 as my first CRO, beautiful crisp trace, Dual delayed timebase, but i spent more time fixing it than using it.British Telequipment was acquired by Tektronix and for a short while some Tek scopes showed that Telequipment heritage.

author: TheEPROM9
author_rank: Frequent Contributor
timestamp: January 10, 2019, 11:00:16 pm
content: I have just got one of these scopes. Still at work siting under my desk. Have not figured out how to activate X/Y mode yet.
Name That Dealywhopper - Page 1
Forum section: electronics / testgear

author: rgaddi
author_rank: Newbie
timestamp: January 09, 2019, 11:19:58 pm
content: I just broke my next to last one of these, and I can't remember what they're called to buy replacements. They plug into the end of a FET probe and make it so that you can't short to adjacent pins of fine-pitch parts. I think the blue are pitched for 0.65mm and the red for 0.5mm.Anyone remember what these things are called? They're fantastically useful.

author: pigrew
author_rank: Frequent Contributor
timestamp: January 10, 2019, 12:52:05 am
content: Tektronix Surefoot, perhaps SF501, SF502, SF503 ?

author: rgaddi
author_rank: Newbie
timestamp: January 10, 2019, 01:20:34 am
content: Yep, that's exactly it. They seem to be unavailable from Tek, but eBay's got them for $25-30 for a 12-pack.Thanks for the help.
HP8569B reset the instrument? - Page 1
Forum section: electronics / testgear

author: 0culus
author_rank: Super Contributor
timestamp: January 11, 2019, 04:05:36 am
content: So my HP8569B has a tendency to be a bit cold backed...if it hasn't been used for a while the display gets filled with garbage characters (the trace is fine). Is there a way to force a hard reset of the instrument? The clear/reset button only clears the trace and restarts it. Normally this problem clears up after letting the thing warm for a while but right not it doesn't appear to be getting better.

author: 0culus
author_rank: Super Contributor
timestamp: January 11, 2019, 08:48:44 pm
content: FWIW, I attached a picture of the symptom:
Tek 2440, 2430 Cursors - Page 1
Forum section: electronics / testgear

author: L_Euler
author_rank: Regular Contributor
timestamp: January 08, 2019, 01:39:58 pm
content: New here,Other than turning down the intensity, how do you turn off the measurement cursors on a Tek 2430 or 2440? I don't see it mentioned anywhere in the user or service manual. Occasionally I see them turn off, but can't decipher the path.

author: particleman
author_rank: Regular Contributor
timestamp: January 08, 2019, 02:09:59 pm
content: Just press the front button. If volts is underlined press the volts button.

author: 0culus
author_rank: Super Contributor
timestamp: January 08, 2019, 08:58:46 pm
content: If it has a "setup" button like my 2465B, running that routine also turns off any active cursors. Otherwise, if you are using delta V for example, simply press it once to turn the cursors on and again to turn them off.

author: L_Euler
author_rank: Regular Contributor
timestamp: January 09, 2019, 12:59:19 am
content: I am sooooooo stupid. I though I tried push the active mode button, but I guess not. Yep, turns them off.
B&K 2709B still best meter for ~$100? - Page 1
Forum section: electronics / testgear

author: jayjr1105
author_rank: Regular Contributor
timestamp: January 08, 2019, 01:16:32 am
content: I actually had a 2709B and loved it. Summer hit and I lost the urge to sit at my bench and tinker so I sold it and now regret it.I finally bought some Probemaster 8008S. so probes aside, what meter now for around ~$100? Dave's shootout videos are pretty old at this point so I'm wondering if anything else has emerged.100% hobbyist and tinkerer. I do probe residential mains sometimes but not frequently.Thanks guys.

author: RoGeorge
author_rank: Super Contributor
timestamp: January 08, 2019, 01:27:57 am
content: mjlorton's channel also have many reviews about multimetershttps://www.youtube.com/channel/UCOTPsWDzNAosVd6vc3pCPHQ
Wiltron 561 Scalar Network analyser ramp error - Page 1
Forum section: electronics / testgear

author: matt09
author_rank: Regular Contributor
timestamp: December 12, 2018, 09:51:33 pm
content: Hi all,Recently acquired this bit of kit, not really my area of expertise so unsure where to go with it.I have substituted the dead NiCad battery but I still get the error:TEST FAILED(A4) warning - ramp not calibratedCH2 LED flashes on power up which does indicate an A4 - sweeper interface error.Does anyone have experience with kit of this era?Have glanced through the service manual but it doesn't mention this and cannot find a copy of the regular manual.Cheers

author: matt09
author_rank: Regular Contributor
timestamp: December 14, 2018, 11:23:51 pm
content: Anyone?

author: matt09
author_rank: Regular Contributor
timestamp: December 22, 2018, 03:29:14 pm
content: bump!

author: matt09
author_rank: Regular Contributor
timestamp: January 01, 2019, 02:42:50 pm
content: New years bump, someone must have used these?

author: matt09
author_rank: Regular Contributor
timestamp: January 04, 2019, 06:31:42 pm
content: Please guys

author: nonlinear
author_rank: Contributor
timestamp: January 05, 2019, 11:37:54 am
content: Ramp is a sawtooth frequency sweep signal (usually 0-10V) generated either by analyzer itself or by external frequency sweeper.In your case there are 2 variants:1. Analyzer is configured to use external ramp and misses it.2. Internal ramp generator is faulty.Look through the user and service manuals (both are freely available - Google for them).

author: matt09
author_rank: Regular Contributor
timestamp: January 06, 2019, 08:14:46 pm
content: Yes I know the board is for sawtooth generation, I've looked at both manuals but neither seem to give specific information regarding a procedure to verify the unit via test points. This would imply there is a third type of test and validation manual, though I can find no mention of it.

author: nonlinear
author_rank: Contributor
timestamp: January 07, 2019, 04:57:30 pm
content: Ramp generation is a part of the scan cycle.So at least is the scan cycle itself working?Any LED blinks each cycle?Any blank/channel_switch strobes on the outputs?Will analyzer accept external ramp signal (0-10V with potentiometer)?