hybridfree/eevblog-posts huggingface dataset:
E5810A and GPIB Controller-in-charge - Page 1
Forum section: electronics / testgear

author: Tony_G
author_rank: Super Contributor
timestamp: February 11, 2017, 07:24:08 pm
content: Hi All,I have an E5810A that seems to not want to participate in handing over control on a "Controller-in-charge" request. I'm not sure if this is the expected behavior or if I'm doing something else wrong.The setup is a HP 8563E connected to the E5810 and a Prologix Ethernet to GPIB adapter set to device mode. When you hit "Copy" on the SA it is supposed to send data to the "printer/plotter" device on a given HPIB address. This address is the one that the Prologix is set to.When I do this with the Prologix connected directly to the SA as the only GPIB connection, the SA prints/plots correctly (I'm having a separate issue with the PrintCapture software). If I connect in the E5810A then the SA gives me a "Error 109 CTRLFAIL" which says that SA can't take control of the bus to print.I'm not sure if:The SA is asserting a controller-in-charge request and the E5810A just doesn't play well with it, orThe SA expects to be the System Controller, in which case it will never work because the E5810A is the system controllerMy search fu is clearly poor today because I can't find anything that says whether the SA expects to be the System Controller or whether the E5810A doesn't work with Controller-in-charge requests (I can find documentation that says the Keysight 82357B doesn't respect them so it's completely possible that the E5810A also doesn't).Any insight appreciated.TonyG
GW Instek 2000A and 2000E - Page 1
Forum section: electronics / testgear

author: ralphrmartin
author_rank: Frequent Contributor
timestamp: February 08, 2017, 04:36:47 pm
content: On the face of it, the GW Instek 2000A seems to have better specs in most areas except memory than the 2000E models. Yet I can buy the former for a lower price than the latter. Anyone know any reasons why to prefer the latter, except for memory?

author: saturation
author_rank: Super Contributor
timestamp: February 09, 2017, 09:38:43 pm
content: I don't own either but looked into both a year ago before buying a 1054B. In the USA, the A is still more expensive. E was for economy. A key difference besides memory is the E is 1GSa/s per CH [it may drop to 500MSa/s at 3 to 4 CH, IIRC ] while the A is 2 GSa/s per CH and supports both RTS and ETS. E includes serial bus decoder, while to do so with the A you need to buy the logic analyzer option. Last I saw the VPO was not very well done on the A compared to Rigol but the E and B VPO is better. A is SVGA screen [ squarish shape], E is WVGA . Dave did a video teardown of both and there are reviews by others too in the archives.

author: pascal_sweden
author_rank: Super Contributor
timestamp: February 09, 2017, 10:36:45 pm
content: Does GW-Instek still provide SW updates for the A-version?So the A-version is still officially supported?The A-version has a slot where you can put in modules. This was really a nice concept!They were also going to provide applications that you can install on the scope.Any updates on the available applications? Are there many available?Are some of them free, or do you have to pay for it?Did they release an API and SDK in the mean-time to develop your own applications?

author: saturation
author_rank: Super Contributor
timestamp: February 10, 2017, 04:08:51 pm
content: Their website has any all updates, here is for the A:http://gwinstek.com/en-global/products/Oscilloscopes/Digital_Storage_Oscilloscopes/GDS-2000AFor the B, so far I've seen updates to the firmware almost every quarter, the last for the B or E series was 2 20 2017.

author: pascal_sweden
author_rank: Super Contributor
timestamp: February 10, 2017, 11:36:44 pm
content: In terms of overall CPU performance the A-version is doing well, and most likely contains more expensive FPGA architecture than the E-version.However the memory size is limited.It's a pity that they don't have an A-version with more memory, or an E-version with module slots and logic analyzer option.

author: saturation
author_rank: Super Contributor
timestamp: February 11, 2017, 12:39:51 pm
content: Yes, very likely on purpose to insure a product doesn't cannibalize another product's sales by insuring as little overlapping features as possible. The thing is test drive it, so buy locally so it can be returned easily. The E and B model have frequent firmware updates appear mostly housecleaning rather than a critical fix, a changelog now shows what has been improved, if you didn't notice it before.Quote from: pascal_sweden on February 10, 2017, 11:36:44 pm
Tektronix 2221a - Page 1
Forum section: electronics / testgear

author: kgharibyan
author_rank: Newbie
timestamp: February 11, 2017, 11:52:23 am
content: Hi, I have a chance to buy a oscilloscope Tektronix 2221 in very good working condition, price is 200$, what you think about it? I'm electronic engineer and going use it for hobby.Sent from my iPad using Tapatalk
TDS 744A calibration setup (Canada) - Page 1
Forum section: electronics / testgear

author: fenugrec
author_rank: Frequent Contributor
timestamp: February 10, 2017, 11:48:29 pm
content: Hi all,I recently acquired a TDS 744A scope that has a weird issue that I suspect may be due to a bad calibration ( my guess is a failed cal attempt during a previous repair, possibly after changing the attenuators, but I can't confirm this). SPC passes repeatedly, caps were replaced years ago with no trace of corrosion, so the usual suspects are probably not the cause here. (more details than anyone wants, + screenshots of the problem :https://forum.tek.com/viewtopic.php?f=568&t=139180)I read a lot of posts here and on the Tek forums regarding the infamous "field adjust" software (in particular the very interesting 744A -> 784A conversion !). I have an idea of the hassle to get the whole setup working perfectly, from the DOS computer with ISA slots, to the +17dbm capable signal generator, etc..I was wondering if a kind soul in eastern Canada (QC, NB, ON...), or even nearby US states (maybe NY/VT/ME ?) had such a setup working, and wouldn't mind me sending / bringing my scope over for a calibration attempt ? At the very least, I'm willing to supply food and beer for the duration of the process : )In the meantime, I'm figuring out a way to dump the two EEPROMs through the internal "cardedge console port". I'm running tests using the "libManagerWordAt()" function for this, which seems to work, but I'm not sure if it maps the address space the same way as the GPIB commands.Thanks !
is good quality   TPI 196 ? - Page 1
Forum section: electronics / testgear

author: Jon.C
author_rank: Unknown
timestamp: February 08, 2017, 02:49:05 pm
content: Hellofor same price what is best option ?Brymen 869s or TPI 196link to TPI 196https://www.tester.co.uk/tpi-196-digital-mutltimeterThanks

author: joeqsmith
author_rank: Super Contributor
timestamp: February 08, 2017, 05:58:48 pm
content: I evaluated a TPI 194II. It was fairly expensive compared with most meters I have looked it. It was damaged during the AC line test and I was unable to obtain a replacement part from TPI to repair it. The full reviews may be found here.

author: Jon.C
author_rank: Unknown
timestamp: February 10, 2017, 08:19:28 pm
content: Thanks Joevery interesting , I'm following your videosI think I'm going to buy the 869s, I already have the 257s and it works really well
Lecroy Wavesurfer 3054 - ActiveDSO - Page 1
Forum section: electronics / testgear

author: houly
author_rank: Contributor
timestamp: May 20, 2016, 06:04:38 pm
content: Hello all,I would want to know if someone of you already use ActiveDSO function with Microsoft Word. I would want to export screenshot of my scope directly on my Word document with macro button. Does someone try to do it ? How I can do ?thanks for your helpregards

author: irigoni
author_rank: Newbie
timestamp: February 10, 2017, 01:57:16 pm
content: Hi There, did some manage it to get this working? I'm also fighting with this thing ... :/
Fluke spare parts - UK - Page 1
Forum section: electronics / testgear

author: stevelup
author_rank: Regular Contributor
timestamp: February 06, 2017, 01:13:18 pm
content: HiI've got an old Fluke 85 (first generation) and I need a new input socket assembly for it (and ideally some other cosmetic parts).I tried Fluke UK but they said it went end of support in 2004 and they have no parts. I was wondering if anyone else had any bright ideas?Fluke part number 826214 (Input terminals)Fluke part number 857268 (Top cover)Fluke part number 822809 (Holster and stand)Thanks,Steve

author: Daruosha
author_rank: Regular Contributor
timestamp: February 06, 2017, 01:44:55 pm
content: Although it sounds silly, but in your case, i'd rather buy a dead one and use its parts to restore the working one.

author: stevelup
author_rank: Regular Contributor
timestamp: February 06, 2017, 01:54:10 pm
content: I did think about that, but all the broken ones seem to have the same thing broken... the input jack assembly.I have found somewhere that claims to have that in stock, but the photo is wrong so I'm suspicious of it.Changing the case is just a 'nice to have' - it's really the input jack assembly that's critical.

author: krivx
author_rank: Frequent Contributor
timestamp: February 06, 2017, 02:49:58 pm
content: I have done the "spares units" loop with an original Fluke 87. The input receptacle should be available on eBay, I think I sourced one there before. The newer Fluke holsters (like on the 87V) fit the 80s series, I just found two of those cheap on eBay.I have sold all my remaining parts, so can't help. If you are looking for a broken unit keep in mind that the LCDs on these are very difficult to source, so look out for meters with smashed displays.

author: stevelup
author_rank: Regular Contributor
timestamp: February 06, 2017, 08:33:43 pm
content: Good point about using a newer holster - I didn't think about that!Thanks for your other suggestions as well.

author: retiredcaps
author_rank: Super Contributor
timestamp: February 09, 2017, 04:43:05 am
content: Quote from: stevelup on February 06, 2017, 01:13:18 pmFix it? Seehttp://mrmodemhead.com/blog/fluke-80-series-jack-assembly-rebuild/

author: stevelup
author_rank: Regular Contributor
timestamp: February 09, 2017, 07:59:40 am
content: No go unfortunately as it's my mA jack that has failed and it's a split socket.
8.5 digits for $800? - Page 1
Forum section: electronics / testgear

author: Kennylxix
author_rank: Regular Contributor
timestamp: February 09, 2017, 02:23:46 am
content: There's a datron 1271 on ebay for 800 bucks if anyone is interested. Ad says it works. Not my ad just thought I'd pass the find along.

author: Kennylxix
author_rank: Regular Contributor
timestamp: February 09, 2017, 03:24:59 am
content: Oh hmm it's been changed to an auction. Ah well.
HP16500B no video - Page 1
Forum section: electronics / testgear

author: Ben Cherry
author_rank: Newbie
timestamp: February 11, 2017, 11:28:42 pm
content: I have a 16500B that I upgraded the interface card in. It was working properly with the 16500L card, I replaced it with a 16500H card, now I get no video. The raster is there but no video. there was a 40 pin cable going to the monitor and a 10 pin video cable going to the CPU board. the new card doesn't have connectors for either. The service manuals for all three do not show what is supposed to happen with these two cables and I see no place to plug in either. Can anyone tell me if there is an adapter card or special cable that I am missing?Thank you,Ben

author: helius
author_rank: Super Contributor
timestamp: February 11, 2017, 11:50:53 pm
content: The 16500L had a buffer circuit to mirror the video to an external port, which the 16500H does not have (it has the 16505A port instead). So the monitor needs to connect to the CPU.The 16500B Service Manual (easy to find online) says:"Remove the cable connecting the CRT module to the CPU board.To release the cable, push the tabs on the board connector to the outside of the connector.With the interface module installed, you will not use this cable. Save the cable to use in case the interface module is removed."

author: Ben Cherry
author_rank: Newbie
timestamp: February 12, 2017, 02:04:32 pm
content: Thank you! I must have missed that reading all those manuals and getting bloodshot eyes. I did find another thread that called out the signals on both the 40 pin and the 10 pin connectors. is it as simple as making a special cable by splicing signal to signal?Ben

author: Ben Cherry
author_rank: Newbie
timestamp: February 12, 2017, 10:50:19 pm
content: yes it was cable 16500-61602 that I needed. I made one by cutting the 40 pin and the 10 pin cables that were left over and splicing the signal wires to signals. the 40 pin is called out in the service manual. The 10 pin is 2-Hsync, 4-vsync, 6-blue, 8-green, 10-red, all others ground.I now have video!Ben

author: helius
author_rank: Super Contributor
timestamp: February 12, 2017, 11:23:57 pm
content: Great, thanks for the update.
HP 37900D - Want to use it like a HP 80 series - Page 1
Forum section: electronics / testgear

author: Loddestuen
author_rank: Newbie
timestamp: February 02, 2017, 02:46:47 pm
content: Hello all,This will be my first post :-)I have recently acquired a HP 37900D Transmission- and line Tester. It has an FDD and a HDD and HP-IB.I really do not think i will ever use it to Transmission- and line Testing but i hoped to be able to use it as an instrument control computer.HP 80 series are rare and very expensive in Europe.. And i got the HP 39700D for 40€ plus shipping from Germany - i think that is an ok price..I want to play around with my old HP equipment (a 3324A signal generator and a 3561A spectrum analyser) and control it over GPIB by learning to write small programs. Im into old reel-to-reel and cassette stuff and do my own repairs and adjustment using a good soundcard and AudioTester. But i really want to use the signal generator and the spectrum analyser for doing the test and adjustments of the tape decks - so i will need to learn make small programs and make data acquisition.According to this site:http://www.museum-nt.de/objekte/hp_37900d.htmlthe MB should be the same as HP 9000/332 - Here is a translation from German:"The HP 37900D is based on the proven technology of HP computer products. The main board of the system is identical to that in the HP 9000/332 computer and uses a Motorola MC68030 processor. The interesting thing about the HP 37900D are its integrated drive (a 52 MB SCSI hard disk), the flat screen in amber-coloured font and the directly attached keyboard."My question at hand is, what kind of software should i try to install on the HP 37900D in order to get it to function as a scientific HP computer rather than a signal tester?? And where do i get it??I have only MS-DOS experience - but i want to learn the HP stuff. This might be a steep learning curve for me..Thanks for any good idea!

author: sportq
author_rank: Regular Contributor
timestamp: February 08, 2017, 02:28:08 pm
content: I worked in the HP division in Scotland that made these and yes they're based on the HP300/400 (Motorola 68k) systems. If I recall correctly they have DIO (and possibly DIOII) slots so other more useful general purpose I/O cards could be installed.Have you seen the HP Computer Museum in Australia? It's got all the info you could want about these systems. There was another system based on the same system board, the R/332 Instrument controller:http://www.hpmuseum.net/display_item.php?hw=1012It should HP Basic and possibly Basic/UX. HP-UX (HP's Unix variant) might be a stretch with only 4MB of ram (if I recall correctly). All the software is theoretically available from the above site too.PM me if you have any other questions. There was one on the local Gumtree recently (a fellow HP employee I'm guessing) I was tempted to get it as it was very cheap and worth it for the nostalgia alone.Peter
Services Manuals or Only Manuals - Page 1
Forum section: electronics / testgear

author: davefigueroa
author_rank: Newbie
timestamp: February 08, 2017, 05:09:19 pm
content: Hello!I am searching the Services Manuals or only manuals for:HUNG CHANG 9100 multifunction counter (I dont know how can I calibrate this machine)EZ DIGITAL FG-8002 Function generator (I need to calibrate a little)Thanks

author: tautech
author_rank: Super Contributor
timestamp: February 08, 2017, 06:43:11 pm
content: Sometimes these units can be rebrands and there can be identifying marks on the PCB to give a clue to the OEM.We have a list of manual providers in this thread:https://www.eevblog.com/forum/repair/repair-documents-and-links-sticky-me-please-mods/Good luck.

author: Simon
author_rank: Unknown
timestamp: February 08, 2017, 09:47:29 pm
content: Welcome Please don't double post, it causes confusion.
Cheap sound level meter/logger - Page 1
Forum section: electronics / testgear

author: IAmBack
author_rank: Regular Contributor
timestamp: February 06, 2017, 07:47:10 pm
content: Hello.I need a cheap sound level meter to make some environmental tests. I want to register the sound level values, so chosen device should have data logging function - at least via USB port.I've found two devices that are appealing:http://www.ebay.com/itm/Digital-40-130-dB-Sound-Pressure-Level-Noise-Meter-Decibel-/311569908935?hash=item488b0384c7:g:3rEAAOSwAYtWPCWkhttp://www.ebay.com/itm/30-130dB-USB-Digital-Sound-Pressure-tester-Level-Meter-Decibel-Noise-Measuremen-/131294341397?hash=item1e91c0a915:g:QG4AAOSwmmxW4Q7pThere is small visible difference between them - one is supplied from 4 AA batteries, the second one uses 9V battery.Both are at price range below 30USD. I don't want to spend more than 40 USD. Free shipping welcomeDoes anyone has experience with the pointed devices (is one superior to the other) or can point me to the other options.Regards.Edit: it looks that 9v version uses some weird usb cable with on chip to do usb-serial conversion.
Agilent MSOX 2012a Serial decode polarity question - Page 1
Forum section: electronics / testgear

author: K1JOS
author_rank: Regular Contributor
timestamp: February 06, 2017, 03:16:14 pm
content: I got a new toy, the MSOX 2012a with serial decode. I am also new to serial decoding. As a test fixture I am using a basic stamp sending out a repeating serial stream (2400,8,N,1, true polarity) and the scope decodes perfectly. For the application I am building I need the stamp to transmit with inverted polarity and there is a simple change in the serial out code to achieve that. However the basic stamp signals, true or inverted, look identical in polarity on the scope and decodes identically. I kept the scope serial decode Bus Configuration the same and only changed the Basic Stamp output polarity in software (very basic change of parameter in one line of code I cannot see it as the problem) but before I go off on that chase... could it be that the Agilent scope does something automatically to keep an identical serial display?thanks to all for help in advanceJerry

author: Fgrir
author_rank: Regular Contributor
timestamp: February 06, 2017, 04:05:31 pm
content: The scope will not automatically flip your signal to decode it, and it most certainly wouldn't automatically show you an inverted version of what it sees at it's inputs. Either behavior would completely mask a problem and would be the exact opposite behavior you would want in a piece of test equipment.Go back to figuring out what is wrong with your code...

author: K1JOS
author_rank: Regular Contributor
timestamp: February 06, 2017, 07:42:53 pm
content: Thanks, it turns out that the Basic Stamp allow polarity control of all digital pins except the Serial Out - all undocumented or poorly documented. Once I changed pins I was able to see how nicely this scope works. Great scope.Jerry
Rohde & Schwarz UPV Audio Analyzer - Options Price List - Page 1
Forum section: electronics / testgear

author: ruairi
author_rank: Frequent Contributor
timestamp: February 14, 2017, 03:49:56 am
content: Hi all,Longshot here….. I have the option to buy a Rohde UPV audio analyzer locally for a reasonably good price. To make the decision on yay or nay I need to know what the various options will cost me to add, without them it does not make sense for me to buy.I've emailed Rohde & Schwarz USA several times and I've even had responses from two different people but despite that they have not sent me the list prices I've asked for. I had the same experience several years ago.Does anyone here have access to the list prices of the UPV options, specifically B1, B2, B3 and K6?Thanks,Ruairi

author: sorenkir
author_rank: Regular Contributor
timestamp: February 14, 2017, 09:54:27 am
content: Hi,Did you tryhttp://shop.rohde-schwarz.com/but for Middle East & Africa countries (all products are not listed in every country):http://shop.rohde-schwarz.com/mea/catalogsearch/result/?q=UPV-B1http://shop.rohde-schwarz.com/mea/catalogsearch/result/?q=UPV-B2http://shop.rohde-schwarz.com/mea/catalogsearch/result/?q=UPV-B3http://shop.rohde-schwarz.com/mea/catalogsearch/result/?q=UPV-K6Maybe the price of these options are almost the same in other countries ?Michel.

author: ruairi
author_rank: Frequent Contributor
timestamp: February 14, 2017, 05:13:02 pm
content: Thank you Michel! That is very helpful, it at least gives me a sense of what I am looking at.
Agilent 1152A probe - compatible with Agilent 9000 series? - Page 1
Forum section: electronics / testgear

author: elephantus
author_rank: Newbie
timestamp: February 06, 2017, 03:55:00 pm
content: There seems to be a good supply of Agilent 1152A probes online. Does anyone have any experience how they work with the DSO/MSO9000 series? All documentation I can find online does not list them as compatible probes, but also it does not list them as incompatible. They are infiniium probes, and the 9000 series is an infiniium scope - so I guess they should work. Has anyone tried it out?

author: Berni
author_rank: Super Contributor
timestamp: February 06, 2017, 05:00:38 pm
content: They work like a charm. I love those probes.
New Tonghui handheld LCR meters: TH2822D and TH2822E - Page 1
Forum section: electronics / testgear

author: dav
author_rank: Regular Contributor
timestamp: November 07, 2015, 04:00:12 pm
content: Hi to all,Tonghui released 2 new handheld LCR meters: TH2822D and TH2822E.Main changes from TH2822A and TH2822C:DC R measurement;0.1% basic accuracy;NiMH rechargeable battery;0.3V 0.6V 1V rms selectable voltage (for in circuit measurement support)Manual and specs here:http://www.tonghui.com.cn/chanpin/th/01/sclcr/367.htmlTonghui is offering them for special price:https://detail.tmall.com/item.htm?spm=a1z10.3-b.w4011-5620089009.34.7imVnD&id=43982292681&rn=14c8761211f9a3cf13ae8f374859172e&abbucket=18&skuId=78494917635Did anyone try one of these units?

author: Tjuurko
author_rank: Regular Contributor
timestamp: January 31, 2017, 06:10:07 am
content: TH2822E Handheld LCR Meter,VER3.8.1604,SNQB-316-*****Very fast (fractions of a second) component of the definition and measurement of any of its parameters.The lack of a single indicator of the frequency of the test signal. After changing the frequency falls again to select "second" measured parameter.Individual Calibration OPEN/SHORT for each frequency (including DCR). It is possible to compensate for the "significant" parasitic resistance. The parameters are reset after switching off the device.I looks like "100 kHz" and "the DCR" is used to calibrate the same memory cell. [!]Ability to customize the initial mode after switching on:Option 1: the default valuesOption 2: The predetermined value. I always resets the frequency to 1 kHz. [!]In the current firmware inability to remember the state before shutting down.Charging the battery for mains operation. For me, it remains a mystery when charging is complete. [!]Support SCPI Commands. The lack of "LabView driver for TH2822". [!]Measured data can be output through HyperTerminal (9600-N-1).

author: djnz
author_rank: Regular Contributor
timestamp: January 31, 2017, 08:54:15 am
content: TH2822E is the same as BK Precision's BK880.

author: Tjuurko
author_rank: Regular Contributor
timestamp: February 06, 2017, 09:26:25 am
content: Resistance measurement DCR mode made rectangular pulses of low frequency.Form voltage on the measured component (R=10 MOhm) in DCR mode:
Tektronix probes like P6045 , P6046 ? - Page 1
Forum section: electronics / testgear

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: February 04, 2017, 02:44:57 pm
content: With a recent thread about some of these , I looked around and have seen some deals .I have not seen [ yet ] enough info , pictures to tell wether these will work generally on other scopes , were the the amp. mounts to the scope .I have some other scope like Rigol 1100 series and older other brands , I know that some probes use contacts off to the side of the BNC to function , but do not know if I would be able to use ?

author: David Hess
author_rank: Super Contributor
timestamp: February 05, 2017, 03:58:53 am
content: These probes use an external power supply and amplifier and will work with any oscilloscope although they usually require a 50 ohm input but this can be provided by a feedthrough termination.Two other probes with watching for are the P6201 and P6202(A).

author: KD0CAC John
author_rank: Frequent Contributor
timestamp: February 06, 2017, 03:11:00 am
content: Thanks , guessing the models you listed are newer ?A quick check on eBay , almost all have no power supplies .

author: David Hess
author_rank: Super Contributor
timestamp: February 06, 2017, 03:19:24 am
content: Quote from: KD0CAC John on February 06, 2017, 03:11:00 amNewer but still long out of production. They are fully documented however.QuoteThis is a common problem. I see some with the power supplies and some without. The ones without a power supply that have a LEMO connector plug directly into the +/-15 volt supply on the Tektronix oscilloscope or a separate power adapter that Tektronix sold but can be adapted.

author: BravoV
author_rank: Super Contributor
timestamp: February 06, 2017, 04:00:47 am
content: Yes, it works with any scope, and with cheap scopes that don't have 50 Ohm input, a 50 Ohm terminator is needed, thats all.One thing you should be aware of especially for used P6046, apart from the power supply, you should watch if the sale comes with the 10X attenuator, alot of the sales I saw on ebay are without it.The 10X attenuatorThe BNC connector at the right at the probe amplifier box, its for the probe connection to the scope, all you need is just a short bnc cable to the scope.The probe's connector to the amplifier box.
Some questions regarding R&S CRTU-RU protocol tester - Page 1
Forum section: electronics / testgear

author: hafrse
author_rank: Regular Contributor
timestamp: December 11, 2016, 07:44:34 pm
content: Hello,Have acquired newly a CRTU-RU , I have previously owned a CMU200 and aware of its functionality but have some questions for the CRTU-RU1 - Booting windows 2000, will only give standard win2000 , no other programs installed except the drivers for the GPIB card, is there any software to install there or they are as options?2 - It has I/Q interface option and 2 TX/RX boards, booting dos will start the instument in version 4.XX and looks exactly like a CMU200 but how can I access the 2:nd RX/TX board ?Happy to receive any information.RegardsGeorge

author: DF_ham
author_rank: Newbie
timestamp: January 28, 2017, 10:08:02 pm
content: Hi George,me too - last calibration 2015_06, option B2.I am looking for a manual for the CRTU-RU.The basic functions work fine, W2K is accessable, but there is no further software installed.As reference I take the handbook of the CMU200, but it doesn´t answer all questions.Is ther anyone out there who may offer a manual for the CRTU RU?Martin

author: Bicurico
author_rank: Super Contributor
timestamp: February 04, 2017, 09:49:16 am
content: Hi,I'm in the same boat: V3.21 and empty Windows 2000 partition.I *think* that it will be hard to find documentation due to the specific nature of this device (part of an automated Test-Setup).Anyway, would you share a backup of your HDD, as you seem to have a newer firmware version?Regards,Vitor
ICS-1650 DAQ card HDK / SDK / driver question - Page 1
Forum section: electronics / testgear

author: memset
author_rank: Regular Contributor
timestamp: January 21, 2017, 09:43:38 am
content: Quite a lot ot ICS-1650 ADC cards are selling on eBay now. These models are 2-channel, FPGA-based 12-bit ADC digitizers coming probably from some kind of discontinued industrial or medical equipment.Unfortunately, these cards are also discontinued and its not possible to get any SDK / HDK from its manufacturers.Is it possible for someone here to have SDK / HDK tools or drivers for this card?Some guys were reverse-engineering it (http://blog.ask-a.ninja/?p=26) , but getting the original support files would be much much better.

author: memset
author_rank: Regular Contributor
timestamp: January 24, 2017, 06:56:02 pm
content: Looks to be a rare piece of equipment, huh...

author: memset
author_rank: Regular Contributor
timestamp: February 03, 2017, 06:35:14 pm
content: looks like a fruitless attempt
Rigol 2072a capturing only 170 events in event table - Page 1
Forum section: electronics / testgear

author: alertjean
author_rank: Newbie
timestamp: February 03, 2017, 02:31:00 am
content: I was trying to export an event table generated after decoding RS232 stream. There are about 200 packets all of which are decoded correctly(shown in the hex bus), but event table has only 170 entries (Corresponding to first 170 packets).Am I missing something? Why aren't all the events part of the event table?
Rigol DM3058E or Siglent SDM3055 - Page 1
Forum section: electronics / testgear

author: netdudeuk
author_rank: Frequent Contributor
timestamp: February 03, 2017, 09:36:01 am
content: I just cannot decide.I'm guessing that the Rigol is probably better made and I already have the DP832 and DS1054Z.The Siglent has a much better looking screen, does logging with tables and charts and has an Ethernet interface.I know that usage will also influence choice but does anyone have an opinion ?

author: tautech
author_rank: Super Contributor
timestamp: February 03, 2017, 12:08:37 pm
content: Quote from: netdudeuk on February 03, 2017, 09:36:01 amThere's actually 2 options in the Siglent range and another secret model coming soon. Shhh, don't tell anyone.SDM3045XSDM3055SDM30x5X..............wonder how many digits it will be ?Yeah, they do have a nice display, my demo unit spends some time on the bench.
HP85714A Scalar Measurements Personality card - Page 1
Forum section: electronics / testgear

author: nickschl
author_rank: Newbie
timestamp: February 03, 2017, 08:45:01 am
content: I am looking for the HP85714A Scalar Measurements Personality card for the HP 8590 series of spectrum analyzers if anyone knows where I might be able to obtain one it would be much appreciated. Thank you in advance for your help.Nick...
M9508 multimeter schematic - Page 1
Forum section: electronics / testgear

author: AndreyS
author_rank: Regular Contributor
timestamp: February 01, 2017, 09:36:42 pm
content: I'm in search of a schematic for some chinese m9508 multimeter. On its board it says 9208B-7 2006/12/28.Unfortunately my searching hasn't led to any success.

author: AndreyS
author_rank: Regular Contributor
timestamp: February 02, 2017, 03:52:51 pm
content: Its capacitance measurements are very inaccurate. I'd like to check components values.
Hioki DT4282/DT4281 vs Kyoritsu KEW1062 vs Brymen 869s vs Sanwa PC7000 - Page 1
Forum section: electronics / testgear

author: mrm2007
author_rank: Contributor
timestamp: February 02, 2017, 06:47:23 am
content: Hello ,Currently i have a Victor VC97 Multimeter and a UNI-T Clamp meter (I don't remember the model ).I have several projects opportunities ( eventually i will get at-least one of them if not 2) which require better test equipment.Currently if i convert the price to USD, these are my local shop prices :1) Sanwa PC7000 >> 385$2) Hioki DT4282 >> 382$3) HioKi DT4281 >> 359$4) Kyoritsu KEW1062 >> 359$5) Brymen 869S >> 300$ (I have to buy it from tme, after shipping and import tax,...etc)If i consider the precision (which is my primary point) ,i think DT4282/4281 is the overall winner. But if i consider durability too i'm not completely sure.(i will need some field work). The precision of KEW1062 is good enough for me.At my current full time work, we have several Hioki & Kyoritsu products and overall the Kyoritsu products work really well ( These products are really abused in the work and even after 6~7 years, they pass the yearly calibration test easily), BTW Hioki products are OK too but they work load is not High like Kyorisu in our workplace (more like using them in a lab).After sale Support : The Japanese brands have local support but for the brymen i think i have to return it to tme in case of any issue.So i think my final selection will be between Hioki (4282) and Kyoristu , but please share your opinion about it.BTW, i can't go with Fluke or Gossen or Keysight, as they are considered premium brands in my country and their price is out of my budget! (for example a fluke 87V is around 700$!)About the budget : I really like to keep it under 400$. ( BTW, if i buy anything aboard, their price will increase between 25% .. 40% for me, because of shipping, import tax ,...etc),Thank you in advance for sharing your experience & thoughts!

author: deadlylover
author_rank: Frequent Contributor
timestamp: February 02, 2017, 07:07:12 am
content: I have a Hioki DT4281 if you have any specific questions. Overall, it is an extremely responsive meter in day to day use and I like it a lot, but in return you pay for its performance in battery life with only 100 hours on 4xAA!That Kyoritsu might be a rebrand of the Yokogawa TY720, there is a review somewhere on YouTube....it seems a little bit clunky IMO.

author: mettlerr
author_rank: Unknown
timestamp: February 02, 2017, 09:35:13 am
content: I second the comment of the Kyoritsu being a bit clunky. The Iwatsu meter I have teared down here ...https://www.eevblog.com/forum/testgear/iwatsu-voac22-dmm-teardown/... has a terrible display and some other shortcomings, and is also a rebrand of the Yokogawa meter. Got the Hioki and later a Fluke 87V instead after returning the Iwatsu.

author: mrm2007
author_rank: Contributor
timestamp: February 02, 2017, 03:34:53 pm
content: Hello,Thank you for your comments.It seems that Hioki DT4281/4282 is the winner.I'll search more specially about sanwa and see if there is more info about it.
Xantrex (Sorensen) XHR 33-33 power supply Schematic  - Page 1
Forum section: electronics / testgear

author: Dion
author_rank: Newbie
timestamp: February 02, 2017, 12:57:45 pm
content: Hi,Does anybody have the schematic for a Xantrex (Sorensen) XHR 33-33 power supply. I'm looking for the schematics for trouble shooting purposes.Thanks,
Rigol DS1074Z PLUS-B .... -B? Whats the difference? - Page 1
Forum section: electronics / testgear

author: innkeeper
author_rank: Unknown
timestamp: February 02, 2017, 04:00:19 am
content: I've been contemplating a buying a Rigol DS1074Z PLUS butnow i see a model called Rigol DS1074Z PLUS-Banyone know what the -B means .. or is it a new version?

author: ebastler
author_rank: Super Contributor
timestamp: February 02, 2017, 05:12:14 am
content: Hmm, I only see that -B model on the Tequipment site, not at other sellers or the Rigol site. Maybe the "-B" just indicates specially priced demo scopes or customer returns?(Found one additional Amazon seller who is offering the -B version. But that's at a price too good to be true -- that one might be a scam, using data copied from Tequipment?)

author: crazyguy
author_rank: Regular Contributor
timestamp: February 02, 2017, 07:58:55 am
content: on Tequipment sitehttp://www.tequipment.net/product-comparison/?Items=609761,505262DS1074Z PLUS-B $639.00 (List Price) $575.10 (Sale Price)with Remark : Open Box Unit - Original packaging may be missing - Full Factory WarrantyDS1074Z Plus $639.00 (List Price)with Free Serial Decode Bundle

author: innkeeper
author_rank: Unknown
timestamp: February 02, 2017, 09:06:38 am
content: ok that makes perfect sense now that i am having another look.demo units.thanks

author: Fungus
author_rank: Super Contributor
timestamp: February 02, 2017, 09:30:26 am
content: Plus-B = You get a box with it.
Firmware for Fluke 1653B - Page 1
Forum section: electronics / testgear

author: roy1984
author_rank: Newbie
timestamp: January 18, 2017, 09:10:17 am
content: Hi, Guys,I am getting Error 1 message on my Fluke 1653B. It seems that firmware update or revision can help to solve this issue. However, not getting an help from FLuke on this firmware.Can anybody share a link of firmware or help with this?'RegardsRoy

author: roy1984
author_rank: Newbie
timestamp: February 09, 2017, 01:49:47 am
content: Guys, any help here??
Agilent U1067A digitizer - Page 1
Forum section: electronics / testgear

author: erikt
author_rank: Newbie
timestamp: January 31, 2017, 09:36:03 pm
content: Hi All,I've been lucky enough to come into an Agilent digitizer, and as an electronics newbie I'm using it as my first scope. The PC it came in is currently running WinXP but I'd like to run Linux instead. The control software also supports up to Ubuntu 9, but I'd prefer 16 LTS and didn't have any success installing it. I can live with XP or an older version of Linux but I'm curious if anyone knows of other software, preferably open source, for interfacing with digitizers with oscilloscope like functionality.Thanks!-Erik
Instek GDM-8251A -- dead current input - Page 1
Forum section: electronics / testgear

author: kcbrown
author_rank: Frequent Contributor
timestamp: February 02, 2017, 04:11:05 am
content: Like so many others here, I went for one of the Instek GDM-8251A meters that was for sale on eBay. At the price they wanted, it was really hard to pass up.It seems to function well except for one thing: the current input is dead. Shows almost, but not quite, zero amps.Further testing shows that the issue is with the 1A and 10A ranges. When it switches between those and 100mA and 10mA ranges, you can hear a relay click. There's a fuse on the low-current common input jack, and that works just fine. I don't know if there's a similar thing for the high-current circuit. If there is, it doesn't appear to be easily replaceable.I may be facing a dead relay. I suppose it's possible that the 10A current shunt resistor is dead, or perhaps one of the amplifiers. I don't know anything about how this is architected.Anyone else have similar issues with theirs? I know that I was supposed to take it apart before I turned it on, but I couldn't resist.Anyway, could make for an interesting repair attempt...

author: kcbrown
author_rank: Frequent Contributor
timestamp: February 02, 2017, 05:59:14 am
content: Well, it *would* have made for an interesting repair attempt. I opened the unit, checked the large current protection fuse (it's fine), checked the current shunt resistor (it's fine), and then realized that maybe, just maybe, I'd screwed up and instead of my standard providing 1A like I thought it was, it was providing 1mA. So I double checked that and, sure enough, it was only providing 1mA, too small for the 1A/10A range to really show.So I hooked it up to my current-limiting power supply, gave it 200mA, and it worked just fine.So -- I'm an idiot. But at least I had a good excuse to take it apart.

author: kcbrown
author_rank: Frequent Contributor
timestamp: February 02, 2017, 07:19:08 am
content: This does raise the question of how the meter does current "autoranging". I can hear it switching the relays when I measure current, but it always stays in the 10A range no matter what amount of current I actually have it measuring. It appears that if you want to use the 100ma and 10ma ranges, you have to use the low-amperage common terminal, but the meter won't autosense there at all with the probe placed there -- you have to manually switch to get it to sense current through that common terminal.Anyone have experience with this specific meter who can shed some light on this? Is my meter acting the way everyone else's does in this respect? Autoranging with voltage works just fine.

author: kcbrown
author_rank: Frequent Contributor
timestamp: February 02, 2017, 07:45:58 am
content: Aha! Looks like you have to use the "LO" black port as the positive terminal in order to get low current autosensing. That makes sense in retrospect. I originally thought there were two different common terminals, with one having a small current fuse, but having the "LO" port be the positive terminal makes a lot more sense.Sigh.Apologies for the "stream of conciousness" ("unconciousness"?)...
Siglent SDG2042X external modulation and trigger - Page 1
Forum section: electronics / testgear

author: pbochet
author_rank: Newbie
timestamp: January 27, 2017, 11:19:40 am
content: HelloI want to Amplitude Modulate a sinus (in channel 1) with an arbitrary waveform in burst mode from channel 2. For this, the output from channel 2 is fed back into the SDG2042 via the auxillary in/out-put on the back face. That's OK. But, at the same time, I want to start the burst in channel 2 with an external trigger and that also would have to go through the auxilliary in/out-put on the back.I do not believe that it can take both input at the same time.Any idea around this difficulty (I suppose I could supply trigger via the USB input but I do not know how).Thank you for any help.I am new to this forum and appologize if this post is not appropriate.

author: tautech
author_rank: Super Contributor
timestamp: January 30, 2017, 09:32:02 am
content: Welcome to the forum.We have a thread dedicated to the SDG2042X and a recent question was asked on the same matter:https://www.eevblog.com/forum/testgear/the-siglent-sdg2042x-thread/msg1117332/#msg1117332Within the UI there are methods to accomplish this I believe as outlined in my reply to the above.The UI offers many options, some of which are not immediately apparent and the terminology used is not always plainly clear so spend some time experimenting and let us know how you get on with finding an answer.
Warranty on a used Rigol DS1102E - Page 1
Forum section: electronics / testgear

author: RadicalAns
author_rank: Newbie
timestamp: January 29, 2017, 07:33:20 pm
content: Picked up a used Rigol DS1102E of ebay for a steal. I want to replace the fan w/ a quieter one and maybe put a heatsink on the voltage regulator under the fan. My question is, should I bother attempting to keep the warranty sticker in place or just go for it. Since I bought it used I don't have the original receipt or anything.Thoughts?Edit: Also, if any of you folks have suggestions for heatsink and/or fans to use on this scope, I'm open to suggestions.

author: Fungus
author_rank: Super Contributor
timestamp: January 29, 2017, 07:43:46 pm
content: Wait a couple of weeks until you're sure it's working thenjust go for it.

author: jjoonathan
author_rank: Frequent Contributor
timestamp: January 29, 2017, 07:50:22 pm
content: IIRC Rigol has a warranty period of 3 years and the DS1102E is a pretty old model, so I doubt that the warranty sticker will get you a warranty and I doubt that you'll need one. Don't just cut it though! At least use it as an opportunity to practice the heat gun + wax paper + patience maneuver. Then sell the sticker on ebay

author: Fungus
author_rank: Super Contributor
timestamp: January 29, 2017, 08:10:37 pm
content: Quote from: jjoonathan on January 29, 2017, 07:50:22 pm
Fluke 15B+ modified with wifi - Page 1
Forum section: electronics / testgear

author: retiredcaps
author_rank: Super Contributor
timestamp: January 30, 2017, 11:53:26 pm
content: Saw this post on badcaps.net todayhttp://www.badcaps.net/forum/showthread.php?t=60012which leads to thishttp://spritesmods.com/?art=fluke15pluswifi
Problem/Question with Hantek DSO5072P - Page 1
Forum section: electronics / testgear

author: imechura
author_rank: Newbie
timestamp: January 29, 2017, 02:43:37 am
content: Howdy,My wife bought me my first scope (a Hantek DSO5072P)as a birthday present back in July. Either something is wrong with the way it functions or I am just misunderstanding how to use it.Is it normal that when I'm measuring a signal with the measure panel, that the displayed voltage measurements (maximum, minimum, etc) changes when I turn the VOLTS/DIV knob? It does not make any sense to me that it behaves this way because it makes every VOLT/DIV setting except one display an inaccurate value. Sometimes it will say that my 4 Volt DC signal is over 40 volts and it will also read a higher voltage as lower if the knob is adjusted downward.I attempted to get help from Hantek but the literature does not cover this topic and the only online help I could find was in Chinese.This has become so frustrating that I spent the weekend repairing an old analog tektronix boat anchor that I got ripped off on by an ebay seller. Needless to say I've had bad luck when it comes to scopes.Thanks ahead of time for any insight.Ian

author: jjoonathan
author_rank: Frequent Contributor
timestamp: January 30, 2017, 02:05:51 am
content: DSOs are NOT good at measuring precise voltage levels. A >>$10k DSO will struggle to measure voltage to the same precision as a $10 multimeter. It can be forgiven since it makes ~billions of measurements per second.Below the $10k pricepoint, DSOs almost all have 8 bits = 256 vertical levels. These will be spaced evenly from the bottom to the top of the screen. If the waveform is small, the waveform will only cross a few levels, and the precision will be terrible. If the waveform is scaled to nearly fill the screen, the voltage precision will merely be bad.In other words, what you see is normal. Hantek does not have a good reputation, so it might be slightly worse than normal, but it's not a sign that the scope is broken or useless.EDIT: s/oscilloscope/DSO/g to not confuse with CRO.
help please with dead 8060A - Page 1
Forum section: electronics / testgear

author: mark hodsman
author_rank: Contributor
timestamp: January 29, 2017, 08:12:34 pm
content: I was merrily enjoying the reliability of the 8060A dmm and took a look at the power jack on the side and for the first time in its long history - I jammed in a 9V wall wart supply (not connected to mains btw). Since then it blew the bussman fuse and I can see no 5V anywhere on the board. Anyone help track down the potential problem? Im now without a meter but I can borrow a meter (albeit basic functions).Thanks in advance. I do have the schematic btw

author: retiredcaps
author_rank: Super Contributor
timestamp: January 29, 2017, 09:28:24 pm
content: Asking moderator to delete this thread since it is double posted over athttps://www.eevblog.com/forum/repair/fluke-8060a-repair-help-please/

author: Simon
author_rank: Unknown
timestamp: January 29, 2017, 09:43:15 pm
content: Please don't double post. If you would like your topic moved to a more suitable section just contact me or report your own post and ask me to do this.
Teardown Idea : BK9800 series or any variable ac power supply ? - Page 1
Forum section: electronics / testgear

author: kripton2035
author_rank: Super Contributor
timestamp: January 29, 2017, 01:45:04 pm
content: Hi Dave and the group,If you're out of teardown ideas, and if you have access to such devices, I would really like (and may be others too) to see how these beast work under the cover !thanks.
HP 3468B IC labelled "Clean Handle" - Page 1
Forum section: electronics / testgear

author: xrunner
author_rank: Super Contributor
timestamp: February 05, 2017, 11:09:59 pm
content: Preparing to replace the 3V backup battery inside an HP 3468B and looking around I saw a chip with some writing on it I hadn't ever seen before (see attachment).On this HP chip it says "Clean Handle". What does that mean to the assemblers, other than a simple notion of don't get it dirty. What procedures does that dictate for this IC that would not have been needed for the other ICs?

author: lowimpedance
author_rank: Super Contributor
timestamp: February 06, 2017, 02:03:19 am
content: Perhaps the package material is sensitive to contamination from the oils of the skin leading to leakage paths and errors, (looks to be part of the A/D converter circuit!).A ceramic package ?, not a general plastic type by the appearance.Interesting all the same.