hybridfree/eevblog-posts huggingface dataset:
Escort 2030 / HIOKI 7016 / EXTECH CMM-17 output calibration info needed - Page 1
Forum section: electronics / testgear

author: Bobson
author_rank: Regular Contributor
timestamp: July 14, 2023, 04:10:05 am
content: Escort 2030 calibration process differs from later Agilent/Keysight U1401A/U1401B.For example, pressing SHIFT after entering Calibration mode does nothing. You need to previously select Output mode and enter Calibration mode after to get -rDy- CAL-0.But I'm stuck in this mode, any keypresses just switch between CAL-0 and 00000 readings on the main display, no way to get further.Any info on calibration mode of this process calibrator?tiaP.S. Found Extech CMM-17 and AKTAKOM 7030 to be the same device.
16500 power supplies - Page 1
Forum section: electronics / testgear

author: artag
author_rank: Super Contributor
timestamp: July 16, 2023, 10:48:07 pm
content: I have a 16500C logic analyser with a faulty power supply.Does anyone know if I can substitute the power supply from a 16500A ?

author: wn1fju
author_rank: Frequent Contributor
timestamp: July 16, 2023, 11:24:47 pm
content: You might want to google and download the free service manuals for the 16500A and the 16500C. Then compare the part numbers for the power supply board.Hint: I just did and they appear to be the same.

author: artag
author_rank: Super Contributor
timestamp: July 17, 2023, 08:39:02 am
content: Thanks, I had thought that there were no service manuals but module-level are sufficient for this.
Boonton Electronics 33A S22 - Page 1
Forum section: electronics / testgear

author: Gianni
author_rank: Contributor
timestamp: July 14, 2023, 07:47:07 am
content: I got this stuff but I cannot find any doc about it?Could someone help me?Thanks

author: AVGresponding
author_rank: Super Contributor
timestamp: July 14, 2023, 08:35:22 am
content: Boonton still exist, it might be worth reaching out to them:https://boonton.com/about/contact-usI'm not clear as to exactly why, but some of their equipment appears under various iterations of the main brand name (Boonton, Boonton RFL, RFL, RFL Boonton) and some is branded "Clarke-Hess". Whether this is simple rebranding or one company bought the other, I don't know. If someone knows something about the history of this I'd be curious to learn it.

author: factory
author_rank: Super Contributor
timestamp: July 15, 2023, 06:46:08 pm
content: From what I can find, Boonton Electronics Corporation were never actually based in Boonton New Jersey, some info on the antique radio forums states it was formed by ex Boonton Radio engineers.https://www.antiqueradios.com/forums/viewtopic.php?t=325246Radio Frequency Laboratories (RFL) also still exist, one of a dozen electronics companies from Boonton New Jersey, some of which frequently get confused with the others.https://www.rflelect.com/about-rfl/our-historyClarke Hess seem to be still going as well, the 'about' page is very lacking on history, more of an advert for current products, they started a lot later than the others (1969).https://www.clarke-hess.com/electronics-test-and-measurement-company/David

author: Gianni
author_rank: Contributor
timestamp: July 17, 2023, 05:48:44 am
content: Thanks for help. I tried to write to the Boonton of the first message.
How to repair the HP 35670A faulty mains push button? - Page 1
Forum section: electronics / testgear

author: Sören_Marodören
author_rank: Contributor
timestamp: July 13, 2023, 04:50:46 pm
content: I have an HP 35670A Dynamic Signal Analyzer with a faulty mains push button.The fault is that a plastic part, between the push button on the front and the rod that connects to the actual switch, has rotten. See attached pictures.It is placed in the Power Supply and the rod and main switch works really well.There are no markings on the parts. I have been in contact with C&K (who manufacture and sell the switch today) but they don't know where this rod and attached parts come from.Are there anybody at this forum who know where this rod/wire comes from and where to get a new?Or are the anybody who have had a similar problem and solved it in a clever way?Cheers,/Sören
Tektronix Iconnect Software 80SICON wanted TDS8300 TDS8300 DSA8300 - Page 1
Forum section: electronics / testgear

author: JuliusJ
author_rank: Newbie
timestamp: December 28, 2022, 08:47:52 pm
content: First post and I am asking for help. Isn't that the same for most of us?I am trying to locate a software package for the Tektronix sampling scopes. It is the 80SICON - Iconnect.exeAnyone out there have a copy of this running. It requires a dongle, which I already have.Thanks kindly.

author: d37duck
author_rank: Contributor
timestamp: April 27, 2023, 05:19:53 pm
content: HiHi, I’ll swap you an IConnect CD copy, described below, for a code of your IConnect dongle.I have a CD image of the disk pictured in the attachment, IConnect 80SSPAR Tek# 063-3897-04. The disk is supposed to work on all Tek TDS8000 family scopes including DSA8300. I have a DSA8200 and installed it. I can adjust differential signal alignment with the installation, but I need the dongle for TDR Line analyzes.I don't have the Sentinel Superpro dongle for IConnect. My knowledge of the dongle is: and image can be read from it and the written into another Superpro dongle. There is a company called SakeKey International (https://www.safe-key.com/software.html), and others like them, that provide dongle copying service. I think Sentinel's parent company tries to prevent this. They required a dongle driver and dongle protector to be installed with the IConnect installation. I assume this means the image read is altered. I also assume SakeKey figured out a way around if. There is an article about hacking the driver to eliminate the dongle, see Sentinel_Dongle attachment.My opinion is all Sentinel parallel port dongles are made from 93C46 EEPROMs (or there die) with some digital logic (programmed PLD) to interface with the parallel port. I have software that reads and writes parallel port Sentinel dongles with source code. It uses x86 I/O read and write instructions to read and write the three registers in PC’s parallel port hardware. I believe an exact image of the dongle's EEPROM contents can be read with this software with no drivers or protectors install and written back to a second one. With luck it will work.

author: JuliusJ
author_rank: Newbie
timestamp: July 13, 2023, 05:14:29 am
content: Sorry for the late response.Thanks for your offer, however I was able to locate the software.
Rigol HDO vs DHO - Page 1
Forum section: electronics / testgear

author: luis garcia
author_rank: Regular Contributor
timestamp: July 10, 2023, 09:39:15 pm
content: I understand Rigol DHO is the new name for HDO, but, are there any other differences?Some stores are selling HDOs as cheaper DHOs, but, only for the name? or is there anything else?Regards.L.

author: tv84
author_rank: Super Contributor
timestamp: July 10, 2023, 09:50:00 pm
content: I heard the new stickers are gold plated...

author: luis garcia
author_rank: Regular Contributor
timestamp: July 10, 2023, 10:02:49 pm
content: I can tell you DHO are Silver. I did own one of these.HDO are selling 350/400 USD cheaper than DHO for the same model.

author: Martin72
author_rank: Super Contributor
timestamp: July 10, 2023, 10:13:47 pm
content: Quote from: luis garcia on July 10, 2023, 09:39:15 pmAFAIK only because of the name(I guess because the name already exists (Lecroy HDO 4000 series)).They want to get their stock out of it.

author: mwb1100
author_rank: Frequent Contributor
timestamp: July 10, 2023, 11:09:48 pm
content: From Batronix's page on the Rigol HDO4204 (10% discount):Quote from:https://www.batronix.com/shop/oscilloscopes/Rigol-HDO4204.html
Siglent ssa3021x vendor Canada - Page 1
Forum section: electronics / testgear

author: mtnzap73
author_rank: Contributor
timestamp: July 10, 2023, 05:08:35 pm
content: Newbie question re vendors: is it ok to ask questions per below:Looking for best vendor in Canada.I have been corresponding with rcc and their response is spotty. Days of no reply. Then a bunch. Nice to get a discount.Tequipment was good with a past order - good border treatment. But will not reply re stock=1 unit, and do they really have it; I have seen a lot of discontent re this issue in this forum.When dropping $1.8K+ it matters.If poor response *before* sale, then what to expect for problems after.Note: Electro-meters in To for Rigol were excellent, before and after. Maybe shift to Rigol for SA?

author: tautech
author_rank: Super Contributor
timestamp: July 10, 2023, 08:17:38 pm
content: Quote from: mtnzap73 on July 10, 2023, 05:08:35 pmIt does.Is communication a problem ?The quality of your post makes you look just like a tire kicker but please take no offense.First pay attention to the model you type as SSA3021X Plus is the model you really want as it's much better featured than the older SSA3021X.Have you seen there are 3 Canada resellers ?https://siglentna.com/how-to-buy/

author: mtnzap73
author_rank: Contributor
timestamp: July 10, 2023, 08:55:04 pm
content: Many thanks for the reply! Not surprised it is from the rep. But that's OK.I did mean that model. I have researched both - of course the plus is better. It's about the $/needs ratio for me.I did not follow the how-to-by link so that's helpful. Thank-you.Not really kicking the tires; I have the ssa3021x in the cart, coupon applied, was going to push the button yesterday; in pause mode.(in pause mode partially because I had a nice reply from Gandalf_Sr on a common project; inspired me to get a microscope, so now have to work in a sa plus a microscope)Thanks again for the helpful reply; I will research the other resellers now .....

author: tautech
author_rank: Super Contributor
timestamp: July 10, 2023, 09:02:19 pm
content: Quote from: mtnzap73 on July 10, 2023, 08:55:04 pmClick on the Canada region for the list of sellers.Do you know about Saelig, they offer the same discount for members here as TE does but you need ask for the code in the Saelig discount thread.The border and delivery fees may not make sourcing from US a better option.

author: isometrik
author_rank: Regular Contributor
timestamp: July 10, 2023, 09:30:27 pm
content: I bought three pieces of Siglent equipment from the following reseller in the past. No issues to report.Techno-Test450-681-5777www.Techno-Test.cominfo@techno-test.com

author: MathWizard
author_rank: Super Contributor
timestamp: July 10, 2023, 11:48:10 pm
content: I've gotten great deals from RCCE on all my Siglent stuff, they're in Toronto or there aboutshttps://rcce.com/siglent/ssa3021x-plus-siglent-spectrum-analyzer?gclid=EAIaIQobChMIhsvQpO-L_wIVABOzAB2KAgpCEAQYASABEgLtJ_D_BwE

author: Chernobyl
author_rank: Contributor
timestamp: July 11, 2023, 03:19:20 am
content: I've had good experience with Transcat:https://www.transcat.ca/siglent-ssa3021x-spectrum-analyzer
HP Agilent 6632B Fan replacement - Page 1
Forum section: electronics / testgear

author: volvo_nut_v70
author_rank: Regular Contributor
timestamp: July 10, 2023, 07:58:41 pm
content: Bought a 6632B that was missing the fan and PCB spacer. Luckily I had another one, since the fan is not called out separately and there a spacer between the fan and heatsink cut out of blank PCB.So the fan is a EPM-PAPST 612NGHH 60x60x25 33CFM It is held in place with 2X M3X10 screwsDrawings of the spacer, photos and datasheet are attached.
Hantek Ds02D10 screen problem  - Page 1
Forum section: electronics / testgear

author: bronius
author_rank: Newbie
timestamp: July 11, 2023, 12:27:13 am
content: Hi , i bought 9 months ago a hantek osciloscope , a few days ago , i found this problem , only appears i don 't know what happenshere in argentina warranty is 6 months , i write for hantek in china , and they offer to send a part to replace , but the price is to highI like to know how to buy this part , the code number or part number , but i can't find itcould you helpme ?Here the video of my problem , sorry about my english I am an spanish speaking guyhttps://youtu.be/tCZgEVC_6R0Thanks
Help: Rigol DS1054Z PNG Screenshot corruption - Page 1
Forum section: electronics / testgear

author: cheeseburger
author_rank: Contributor
timestamp: July 07, 2023, 09:04:30 am
content: HelloI have a Rigol DS1104Z. Since the update to the latest firmware (v00.04.05.02.00) the screenshot to USB feature doesn't work properly anymore.The last screenshot on the USB disk is always corrupted. But just the last one. This also happens when taking the snapshot and shutting the device after a few minutes. It looks like it doesn't write the file to a full finish.Is this a firmware bug?

author: RoGeorge
author_rank: Super Contributor
timestamp: July 07, 2023, 10:22:31 am
content: Upgrade to a newer firmware, IIRC v00.04.05.02.00 not the latest firmware. From here, there are at least 2-3 newer ones.https://www.eevblog.com/forum/testgear/new-rigol-ds1054z-oscilloscope/msg4865735/#msg4865735If not, you can downgrade to the last known working firmware you had before (for how to downgrade Rigol firmware, see the last paragraph written as code, the Rigol signed disk is attached there:https://www.eevblog.com/forum/testgear/new-rigol-ds1054z-oscilloscope/msg3613778/#msg3613778)Another thing you may want to consider is to use LAN or USB to download the scope printscreen directly into a PC, without an USB pendrive. That's way faster and easier. Use something like DSremote, or any other program that can control the oscilloscope remotely (there are many ways to download from scope to PC directly).

author: cheeseburger
author_rank: Contributor
timestamp: July 09, 2023, 08:50:44 pm
content: Updated to 00.04.05.02.04, issue still present.Looks like I will now use DSremote which is pretty awesome over LAN.

author: ledtester
author_rank: Super Contributor
timestamp: July 09, 2023, 09:13:20 pm
content: Quote from: cheeseburger on July 07, 2023, 09:04:30 amI haven't had this problem, but a simple work-around would be to take one more screenshot than you need (i.e. a throwaway one)I would also try it using a different USB drive - just to rule out a defective USB drive.

author: ElectronMan
author_rank: Regular Contributor
timestamp: July 10, 2023, 03:23:38 pm
content: From your description it sounds like you may be pulling the USB drive before the OS of the scope has flushed its cache to the USB drive.Rigol might need to add a sync after saving files. Ledtester's suggestion above is a good one, but also make sure you aren't pulling it out as soon as it says it is done saving the screenshot.
Rohde & Schwarz Hameg HM6050-2 LISN Teardown - Page 1
Forum section: electronics / testgear

author: vzoole
author_rank: Regular Contributor
timestamp: September 05, 2020, 10:21:34 pm
content: I just changed my homemade LISN and I thought it would be a good idea to look inside of the new one.

author: dhia.chariag
author_rank: Newbie
timestamp: February 04, 2022, 01:31:38 pm
content: Hello,our Hameg HM6050-2 LISN is damage, and I need the references of the components in the picture below, if you can send me the reference of that components ThanksSincerly

author: vzoole
author_rank: Regular Contributor
timestamp: February 05, 2022, 02:52:57 am
content: It is glued to the PCB so I wouldn't desolder it for measure if it isn't necessary. But my best guess is two 100 Ohm paralel.

author: Hydron
author_rank: Super Contributor
timestamp: February 05, 2022, 02:21:09 pm
content: That's pretty much the best possible 1% tolerance value - no ambiguity even if you can't tell which band is the tolerance one

author: Jar
author_rank: Newbie
timestamp: July 10, 2023, 12:21:39 pm
content: Hi.How is it in work?I got issue with mine. measure on L with limiter off got 10dBuV more noise in range below 300KNz compared with N. No DUT connected.if I swap power plug of HM6050 180 degree. nothing changes(I expected to have noise moved to N). That makes me thing it comes from LISN it self(
Siglent SSA3000+ Screen issue  - Page 1
Forum section: electronics / testgear

author: gogoman
author_rank: Regular Contributor
timestamp: July 09, 2023, 06:24:21 am
content: I have a new to me SSA, which had the MFG screen protector in stalled. With the screen protector removed, there are bubbles under the second plastic sheet.It's not clear the purpose of the second plastic sheet, is it part of the MFR screen protector which delaminated or is related to touch screen, is the screen defective.This is noticeable when the instrument is off and does not appear to effect the touch screenthanks gogo

author: dpenev
author_rank: Regular Contributor
timestamp: July 09, 2023, 06:42:44 am
content: I have the same with their scope.I think this is a protector.Keeping it and so far no problems.
Anritsu MG3633A Battery - Page 1
Forum section: electronics / testgear

author: Dobby
author_rank: Newbie
timestamp: July 09, 2023, 12:06:03 am
content: I have an Anritsu MG3633 Signal Synth I'm breathing new life into. I see it has a battery soldered on the control board and the user manual says 'Send it back to Anritsu for replacement at 7 years'. Does this battery power memory to save only user config settings or does it also save cal data ? Should I replace it ? It currently reads 3.0V. If so, what precautions does one take - eg supplying external power to those terminals (via 1k) whilst replacing it ? Many Thanks.
Agilent DSO5014 fix and BWhack - Page 1
Forum section: electronics / testgear

author: qzqmom
author_rank: Contributor
timestamp: June 18, 2023, 07:35:40 am
content: Hello Everybody !Nowdays I bught a broken DSO5054 （the panel label said that) but the main board number is54534-66401 not 54574-66401 as service manual record. And every analog channel have inb7-8453 that turely used on 300/500m dso6000series .I can't found any internal pictures about DSO 5000Series on internet and confused about its model.So does anyone have the internal pictures about this oscilloscope . If it's a DSO 5054 OR DSO5014?And should inb7-8453 module shown on a DSO 5014 board?

author: qzqmom
author_rank: Contributor
timestamp: June 18, 2023, 08:28:29 am
content: This machine lost DC-DC convert board and main board had rework the bnc Connector are replaced by a new 2ch machine bnc Connector

author: qzqmom
author_rank: Contributor
timestamp: June 30, 2023, 03:49:57 pm
content: I cost ￥100 for a broken power supply board and fixed it ，there also need two flex cabel so ibought connector and start handmade，after all these matter，I contact power cable and it work ，unfortunately the main board model is dso5014😅，but all channel worked cuz it have inb7-8453 we can hack BW easily by move the model resistor

author: qzqmom
author_rank: Contributor
timestamp: July 09, 2023, 01:56:34 am
content: After resistor hack Now I get a DSO5054 without bnc connector😂

author: qzqmom
author_rank: Contributor
timestamp: July 09, 2023, 02:10:18 am
content: some who just have a 5014 with inb7-8453 internal could have a try ，I can't test if the BW is truly increased to 500m ,maybe there still have a RCnetwork should have modification ,. By the way you can also remove the resistor and make your 5054to a 5014 ,🤓haha
LCR meter that can test high power MOSFETs. - Page 1
Forum section: electronics / testgear

author: SpottedDick
author_rank: Regular Contributor
timestamp: July 06, 2023, 12:37:57 pm
content: Hi All!So I've been using my trusted T7 for about ten years now and it has been fantastic.(Ignore the 18650 battery mod on the side, the original battery died years ago and this works better anyway!)However, it let me down when I wanted to test some high power MOSFETs. Is there something similar and affordable with functions like the T7 that's capable of measuring high power MOSFETs? Like the IRFP260N?Thanks,SD

author: madires
author_rank: Super Contributor
timestamp: July 06, 2023, 01:13:17 pm
content: Your T7 is a modified clone of the OSHW Transistortester project and its limit is 5V and 7mA, Any semiconductor requiring a higher voltage or more current can't be detected. Peak has a tester with a slightly higher test voltage/current but it's several times more expensive.

author: alm
author_rank: Super Contributor
timestamp: July 06, 2023, 10:21:58 pm
content: Sounds to me like you're not looking for an LCR meter which measures inductance, capacitance and resistance (impedance), but rather a semiconductor tester or curve tracer. I believe there are some DIY or hobbyist-level designs that you may able to build for a few hundred dollars, but otherwise expect to pay more.You may be able to do something with a programmable power supply with computer connection and software (see for examplehere), but it definitely won't be portable or very convenient. There is also a topic about an open source source measure unit (SMU), but I don't know how finished that is.

author: SpottedDick
author_rank: Regular Contributor
timestamp: July 07, 2023, 10:27:26 am
content: Appreciate both your replies. Yes, scope and manual power supply is how I test high power stuff at the minute. Looks like I'll stick to that for now, since the T7 does 99% of my job for me

author: pdenisowski
author_rank: Super Contributor
timestamp: July 07, 2023, 03:45:39 pm
content: Quote from: SpottedDick on July 07, 2023, 10:27:26 amI would also recommend a scope and power supply for testing power electronics.We make a very nice LCR meter, but as the other posters have said, it's not the right tool for this application.Incidentally, if you're designing power supplies, one of my colleagues wrote a very detailed, in-depth app note on AC-DC converter testing (using a scope)https://www.rohde-schwarz.com/us/applications/ac-dc-converter-testing-fundamentals-application-note_56280-1297283.html
Output impedance of TG550 function gen? - Page 1
Forum section: electronics / testgear

author: Faringdon
author_rank: Super Contributor
timestamp: July 12, 2023, 12:39:50 pm
content: HiThe TG550 function gen datasheet says it has 50R output impedance......i can get it unipolar square wave with 12V peak.......does that really mean it can deliver 12V/50R current?It sounds a lot for a "signal"(i wish to drive a load transient testing fet with it)TG550 fun genhttps://www.aimtti.com/resources/tg550-function-generator-data-sheet

author: jasonRF
author_rank: Regular Contributor
timestamp: July 12, 2023, 01:06:08 pm
content: The data sheet doesn't specify the max output including DC offsets, so it isn't obvious to me. It does specify 20Vpp into an open circuit, so if it is well designed and built then it should be able to deliver 10Vpp (or 5V peak) into a 50 Ohm load. That is only 100 mA (10V peak into 100 Ohms), which doesn't sound crazy or anything. You are measuring 12V peak into a high impedance, so I would hope it can deliver 6V peak into 50 Ohms, but that is higher than the spec so there are no guarantees.I find it interesting that it has both 50 Ohm and 600 Ohm outputs. For most lower frequency purposes either will be fine, of course. Some of the old HP 1 MHz analog function generators have 600 Ohm outputs as well. My understanding is that 600 Ohms used to be a standard in audio gear, but I could be wrong about that.jason
HP 8642A power consumption exactly ? anyone - Page 1
Forum section: electronics / testgear

author: oz2cpu
author_rank: Frequent Contributor
timestamp: July 06, 2023, 01:15:52 pm
content: I got a defective HP8642Aone or more modules use too much power in +5V and +15Vso it overload the power supply and shut down the psuit would be very helpfull if anyone got exactly the same unit and could reveal the exact power consumption230V mode for a working unit, this way i can unplug power to one module at a timeand this way estimate what module may be the problem.did anyone measure the normal current usage in all power rails ?it is easy to access current shunts and measure dc drop on them,

author: oz2cpu
author_rank: Frequent Contributor
timestamp: July 06, 2023, 08:16:28 pm
content: SOLVED picture added here, for others to find in the future
BM786 doesn't turn on sometimes - Page 1
Forum section: electronics / testgear

author: gak
author_rank: Newbie
timestamp: July 07, 2023, 07:54:13 pm
content: Hi,I bought a BM786 on Amazon over a year ago and it's out of warranty.The thing doesn't turn on sometimes. Nothing on the screen. Batteries checked, replaced. Messed with the battery holder contacts. Measured V at the contacts. I've barely used it 10 times before it started happening.Are there any common problems with these things I can take a look at?Cheers

author: Fungus
author_rank: Super Contributor
timestamp: July 07, 2023, 08:05:07 pm
content: Look for dirt on the selector switch.

author: Veteran68
author_rank: Frequent Contributor
timestamp: July 07, 2023, 08:38:17 pm
content: Dave did a video recently where he received a couple of returned meters with this issue at the exact same time. Sounds like a manufacturing QA issue with a specific lot of meters. It's been awhile since I watched the video and don't recall the diagnosis if any, but check it out and see if this is what you're seeing? Check to see if the dates on these meters matches yours (as I recall Dave was reading the dates backwards on one of these meters, but they were actually from the same dates or very close together).

author: gak
author_rank: Newbie
timestamp: July 07, 2023, 09:07:18 pm
content: Thanks for the video! I guess I'll subscribe to EEVBlog2I did see another oneThat's close to what I'm seeing. It works for a bit, then after a few days it just conks out and doesn't turn on at all. If I leave it for a while it just starts working again.No solution in the video. Looks like it's not power or the switch. Dave reckons it's CPU/reset state issues.This serial is 222117xxxx

author: gak
author_rank: Newbie
timestamp: July 07, 2023, 09:11:31 pm
content: Cheers for the suggestion. I didn't see any dirt inside, but didn't take the switch cover out. That video pretty much shows it's most likely not the switch.
HP E4432B Signal Generator - Page 1
Forum section: electronics / testgear

author: MaxFrister
author_rank: Regular Contributor
timestamp: March 22, 2023, 05:33:23 pm
content: I have a new-to-me HPAK E4432B signal generator that I bought broken. I've cleaned it up and have it limping along.I am waiting for a ccfl and bnc connector and trying to figure out what to do about the missing tooth.In the meantime, I’m trying to figure out how to use it and have some questions.Is there any particular reason to update the firmware? I’m always a little reluctant with such an old device.Is the hardware the same between the E4432B (3GHz) and E4433B(4GHz) versions. Is there a downside to hacking it for the higher bandwidth?Is there any software for the generator and/or UND option that runs on a modern computer. The only software I’ve seen seems to require windows NT or similar which I really don’t want to ever see again.TIA

author: Kim Christensen
author_rank: Super Contributor
timestamp: March 22, 2023, 07:11:10 pm
content: Yea, I'm always a bit leery about firmware updates. I'd check the version # you have and then check what the update # is and what it gives you. An update may not give you anything of value to you.I doubt you can just software hack it without a hardware update.You can always control it via GPIB or the serial interface if it has those options installed. (Look into the free version of LabView, or the equivalent Open source software)

author: TheSteve
author_rank: Unknown
timestamp: March 23, 2023, 07:44:39 pm
content: I always prefer to run the newest firmware and did update my E4431B.Yes, a firmware only hack will take it to 4 GHz. If done properly the only possible downside is that the amplitude will likely be a little low between 3 and 4 GHz(for your model) as that portion will not be calibrated.

author: dxl
author_rank: Regular Contributor
timestamp: March 23, 2023, 07:54:05 pm
content: I upgraded mine a while ago to 4GHz and haven't found a problem. I wrote a little script to calibrated the upper band that wasn't present before:https://github.com/svenschnelle/caltools/blob/master/calesg.pyIt uses a E4418B power meter to do so, but i could be adapted to other types if needed.

author: WernerFalken
author_rank: Contributor
timestamp: July 06, 2023, 05:30:52 pm
content: Has anyone written code to add license options? One other downside to changing the model #, iirc, is that some license options become invalidated.I haven't looked very much, yet, but I am looking for a license gen....
Can you run Fluke Connect on an Android Tablet - Page 1
Forum section: electronics / testgear

author: BeBuLamar
author_rank: Super Contributor
timestamp: July 04, 2023, 06:42:55 pm
content: I used to have an Iphone which I run the Fluke Connect apps on. After retiring I had to return the phone so I don't have a smart phone. I am not sure I would want to buy a smart phone. In the mean time I wonder if I can get an Android tablet and run the Fluke Connect on? The tablets I am thinking of buying to use is either the Samsung Galaxy S6 lite or the Lenovo P11 (first gen). I can call Fluke but it would take some time.Thanks,

author: LazyJack
author_rank: Frequent Contributor
timestamp: July 04, 2023, 07:01:37 pm
content: Fluke connect is certainly available on Google Play, so I see no reason why it would not work.

author: alm
author_rank: Super Contributor
timestamp: July 04, 2023, 07:39:58 pm
content: ThePlay Store listinglists some reviews from tablet users, so my guess is it works fine, but may not be optimized for the display (aka only work in portrait mode with ridiculously large text).

author: BeBuLamar
author_rank: Super Contributor
timestamp: July 06, 2023, 12:00:57 pm
content: Thank you all. I remember I have a Nexus 7 tablet from 2013. It has bad battery so I have to operate it with the charger plugged in all the time. Also it has a bad touch screen. I would have to put it under a book or something and press on it once it a while to get it working. Any way it works and in fact it works better than the Iphone 12 I used to use. I worked with the 189 correctly.So I run down to Best Buy trying to buy the Lenovo P11 Plus for $179 but they all sold out. Oh well.
DIY Agilent 33220A Option 001 Board. Missing parts from list. - Page 1
Forum section: electronics / testgear

author: mower
author_rank: Contributor
timestamp: July 10, 2023, 01:50:44 am
content: Hello, I recently picked up a bunch of Agilent 33220As from the bin. I want to link them up together but none of them have the Option 001 installed, and it seems to be unobtanium these days.I want to recreate the PCB. Most of the parts or close alternatives are available on DigiKey.The full schematic and component layout seems to be in the service manual, but a few parts are missing from the BOM, such as the ferrite beads. Does anyone have any advice on how to pick the right ferrite bead to use?I have attached the schematic, but more information can be found in the service manual.Thank you in advance.
UK Product Recall: Fluke Test Lead - Model 3PHVL-17XX (2306-0108) - Page 1
Forum section: electronics / testgear

author: JamesGame
author_rank: Newbie
timestamp: July 07, 2023, 12:00:11 pm
content: https://www.gov.uk/product-safety-alerts-reports-recalls/product-recall-fluke-test-lead-model-3phvl-17xx-2306-0108?utm_medium=email&utm_campaign=govuk-notifications-topic&utm_source=0fb0fc11-3464-4fd7-89d3-19ce4270245d&utm_content=immediately

author: mendip_discovery
author_rank: Super Contributor
timestamp: July 07, 2023, 01:21:57 pm
content: QuoteQuoteQuoteAttached PDF of the recall.

author: AVGresponding
author_rank: Super Contributor
timestamp: July 07, 2023, 03:42:54 pm
content: Yet another Fluke recall related to failure in plastic connector housings. Maybe the senior management will listen to the engineers instead of the bean counters, but I doubt it.
Problems with USB oscilloscope trigger - Page 1
Forum section: electronics / testgear

author: Captain autism
author_rank: Newbie
timestamp: July 05, 2023, 12:20:21 pm
content: Hello everyone.Recently I acquired a USB oscilloscope (Hantek 6022BE) and it has been giving me quite a few problems, namely with the trigger. I have attached a video in which the problem can be seen:https://youtu.be/Ce1RPKmSjQIThis is not an ongoing situation, meaning, sometimes it works just fine and some other times it does this. The problem is that I don't know what causes it to malfunction: is the hardware broken? is it a problem with the software? etc.The only thing that I can think of to solve this issue is to install an alternative firmware. Has anyone had any success with this approach?Thanks in advance.

author: Psi
author_rank: Super Contributor
timestamp: July 05, 2023, 12:26:35 pm
content: Does it happening have any correlation to when the laptop is running on battery and mains isolated vs not?Laptop can be a bit weird when it comes to earthing, which may mess up triggering.Also, if your laptop is charging vs not it may have an effect as well.

author: Captain autism
author_rank: Newbie
timestamp: July 05, 2023, 01:44:45 pm
content: Quote from: Psi on July 05, 2023, 12:26:35 pmIt doesn't make any difference sadly

author: Caliaxy
author_rank: Frequent Contributor
timestamp: July 05, 2023, 01:49:29 pm
content: Where is your horizontal trigger point?

author: Captain autism
author_rank: Newbie
timestamp: July 05, 2023, 02:24:44 pm
content: Quote from: Caliaxy on July 05, 2023, 01:49:29 pmI don't think this oscilloscope has a horizontal trigger point. I can however drag the signal wherever I want to.

author: Caliaxy
author_rank: Frequent Contributor
timestamp: July 05, 2023, 03:20:42 pm
content: Quote from: Captain autism on July 05, 2023, 02:24:44 pmIt should (they all do…). Drag the trace left or right until you see it on the upper edge of the screen, then your problem should disapear. Or press “Auto”. This should bring it right in the middle.

author: pdenisowski
author_rank: Super Contributor
timestamp: July 05, 2023, 05:31:12 pm
content: Try switching from AUTO to NORM(al) for "Trigger Sweep"

author: nctnico
author_rank: Super Contributor
timestamp: July 05, 2023, 05:38:25 pm
content: Quote from: Caliaxy on July 05, 2023, 03:20:42 pmAfter checking the manual I don't think there is a horizontal position setting. So setting the trigger mode to normal and adjust the trigger level until the signal is stable, may be a good place to start. It could be the auto-trigger re-arm time is too short to trigger when using 500us / div. Remember this is a Hantek...
Alternative to Segger J-Link EDU - Page 1
Forum section: electronics / testgear

author: STMartin
author_rank: Contributor
timestamp: February 23, 2022, 10:21:50 pm
content: Just for fun, I've decided to get a bit more serious about reverse engineering random products, and I've found a good jtag programmer is necessary. I've no particular MCU families in mind, so a versatile programmer would be paramount.I had my sights set on the Segger J-Link EDU since it seems highly regarded, versatile, and cheap. Sadly it is out of stock the world over, with no end in sight.Any suggestions for an alternative?

author: thm_w
author_rank: Super Contributor
timestamp: February 23, 2022, 11:14:49 pm
content: You can get a clone, or blackmagic probe, or make your own from a bluepill.https://www.eevblog.com/forum/microcontrollers/segger-j-link-edu-or-j-link-clone-which-one-would-you-get/https://www.eevblog.com/forum/microcontrollers/segger-jlink/https://www.eevblog.com/forum/chat/element14-retroactively-gave-me-a-400-day-lead-time/msg3987179/#msg3987179

author: DavidAlfa
author_rank: Super Contributor
timestamp: February 23, 2022, 11:44:28 pm
content: You can convert a cheap ST-Link v2 into a Jlink-EDUhttps://www.segger.com/products/debug-probes/j-link/models/other-j-links/st-link-on-board/Tested few times, could flash, then revert, no issues.However didn't work very well in STM32 CubeIDE.

author: thm_w
author_rank: Super Contributor
timestamp: February 23, 2022, 11:50:51 pm
content: Quote from: DavidAlfa on February 23, 2022, 11:44:28 pmYes, works well for me in visual studio, but STM32 only unless you have a way of modding their drivers.

author: STMartin
author_rank: Contributor
timestamp: February 24, 2022, 04:23:27 am
content: Appreciate the suggestions.Decided to just buy the older J-Link Base on the Fleabay.

author: tv84
author_rank: Super Contributor
timestamp: February 24, 2022, 10:05:48 am
content: You have the Mini version in the official store:https://shop-us.segger.com/product/j-link-edu-mini-8-08-91/It's better than most regular clones.

author: Smokey
author_rank: Super Contributor
timestamp: April 16, 2022, 04:08:53 am
content: Quote from: tv84 on February 24, 2022, 10:05:48 amOut of stock already.

author: Smokey
author_rank: Super Contributor
timestamp: July 06, 2023, 11:02:32 am
content: Actually back in stock now. I guess they finally got their microcontroller delivery.https://www.mouser.com/ProductDetail/Segger-Microcontroller/8.08.91?qs=sGAEpiMZZMuRZxwUfDU0mui7EzpQns74OnlvvZS1XdkKMiMoUtmfqw%3D%3Dhttps://www.adafruit.com/product/3571Looks like they did jack the price to $60 though.
HP8656A signal generator - external timebase - Page 1
Forum section: electronics / testgear

author: Greg01
author_rank: Newbie
timestamp: July 03, 2023, 04:13:33 am
content: Hoping someone can help. I have an external time base (10 MHz) which I have connected to the time base input connector. I have checked that the time base jumper on the LF loop assembly is in the 10 MHz position. With a frequency counter on the time base output connector, I do not see any change in the frequency when the external time base is connected as there is no change in the generator output frequency (there is approx 20 Hz difference between the internal and external time bases). I cannot find any information regarding the min/max levels of external time base voltage the 8656A requires. Can anyone offer some helpful advice please?Greg

author: wn1fju
author_rank: Frequent Contributor
timestamp: July 03, 2023, 11:57:27 am
content: Figure 3-7 of the manual (downloaded from Keysight) says: "Female BNC connector (J3) accepts an external 1, 5 or 10 MHz (+/-0.005%) time base reference input at a level of 0.2 to 0.4 Vrms into 50 ohms."

author: Greg01
author_rank: Newbie
timestamp: July 04, 2023, 12:44:23 am
content: Hi wn1fju,Thank you for the reply. I had read the service manual which does not give the input amplitude required but on reading the operation manual (your ref.) I see the levels. My ext ref outputs about 4.5V @ 10 MHz so made up an attenuator and now have 200mV but still no luck with the external oscillator being accepted. I have a feeling something may have been disconnected internally so my next job will be to see if this is so. I bought the SG in an operational condition but the keyboard needed some work which was very successful thanks to Youtube and the people who publish. There is some output instability which appears to be coming from the LF board but thought I would try an external ref first to see if the ref oscillator was contributing to the problem. I appreciate your input - thank you again.Greg

author: rhb
author_rank: Super Contributor
timestamp: July 04, 2023, 08:43:38 pm
content: I don't have an 8656A , but the manual quote suggests a menu item buried somewhere. Good luck.Reg
HP 86290A/B/C manual - Page 1
Forum section: electronics / testgear

author: EggertEnjoyer123
author_rank: Frequent Contributor
timestamp: July 04, 2023, 06:05:44 am
content: Does anyone have the service manual for the HP 86290A (or one of its derivatives)?I could not find the complete service manual with the schematics online.

author: xtech
author_rank: Regular Contributor
timestamp: July 04, 2023, 07:18:22 am
content: Not for free:https://artekmanuals.com/manuals/hp-manuals/
Owon sds1104 I've been going crazy for 4 days, I can't install the right drive - Page 1
Forum section: electronics / testgear

author: Enzostelvio
author_rank: Newbie
timestamp: July 03, 2023, 03:51:45 pm
content: Good evening to all members of the forum,my name is enzo and after I received my new: Owon sds1104 I've been going crazy for 4 days, I can't install the right drive and consequently the Oscillometer won't connect to my lapTop!I installed: Windows 11 64bit!I don't understand anything and I don't know what to do anymore!Browsing I found your forum and I hope that someone can help me solve this problem!Waiting for your reply,best regardsEnzostelvio

author: Whitefoot
author_rank: Contributor
timestamp: July 03, 2023, 07:20:06 pm
content: I don't know about the computer connection. A USB stick drive has to be formatted with FAT32, Allocation Unit Size 4k. Allocation Unit Size is generally 16k with current USB stick drives. I use an old 8Gb drive for my Owon SDS7102 rather than reformat a large drive. I have only used the USB to save screenshots.
Systron Donner HR 70-3 PSU thrift store find - Page 1
Forum section: electronics / testgear

author: Nickelbender
author_rank: Newbie
timestamp: July 03, 2023, 09:13:12 am
content: Stumbled on this beauty while going through my usual thrift stores.It is a Systron Donner HR 70-3 Lab bench power supply. It goes from 0-70 Volts and 0-3 amps which is quite the overkill for me, but still picked it up anyways. It seems to work great and will the most definitely be used a lot. I haven't really been able to find a lot of info about this power supply the design looks semi old, it is a linear power supply as far as I know. It has a huge transformer inside which probably gives it its weight of 13.4 Kg. Haven't had the time to do a teardown yet but looking forward to see some old PSU goods.If anyone knows anything about the time that this could have been made in I would love to know. I'll be sure to post the insides too as soon as I get to it.

author: TheDefpom
author_rank: Frequent Contributor
timestamp: July 03, 2023, 09:18:16 am
content: The power switch looks the same as used on the HP3400A from the early 80's, so it is likely from that era.
siglent scope wont boot - Page 1
Forum section: electronics / testgear

author: Parabellum
author_rank: Newbie
timestamp: July 03, 2023, 08:25:59 am
content: Hi guys, New to the forum and hoping that someone can help me sort out my scope.I have a Siglent SDS 1072CML+ that conveniently decided to not boot up at during a training course that I was running with some staff. It sticks on the boot screen (Just says Siglent) then the relay clicks on and off and the lights go out. I'm hoping its just a boot file issue of some sort. Appreciate any help.Cheers
GM328 component tester problem - powers itself off too quickly, firmware 1.49m - Page 1
Forum section: electronics / testgear

author: seanspotatobusiness
author_rank: Regular Contributor
timestamp: June 23, 2023, 02:58:30 am
content: I had a problem with the old original firmware on my GM328 component tester where, after booting, it would not let me select an item on the menu; it would move past the menu and say "Battery OK. Vext = 0mv" (with the Vext = 0mv part flashing) and I'd be unable to turn the unit off except by removing the power. I compiled 1.49m with the following settings and uploaded it to a different 328P chip:Makefile (pastebin:https://pastebin.com/9N1VtdBH)config.h (attached)config_328.h (attached)The problem now is that it switches off after less than a second following identification of a component, not giving enough time to read the screen. Video:https://youtube.com/shorts/xzoZdjnmPno- Anyone have any idea what could cause that?The most relevant setting I know is #define POWER_OFF_TIMEOUT 60 which shouldn't power the unit off until 60 seconds have elapsed.

author: majortom
author_rank: Newbie
timestamp: July 02, 2023, 02:34:34 am
content: I don't know if this is your issue but worth a look. take a peek at ur config.hsee ur 60 sec timeout, great. But notice the comment about how it applies to "auto-hold" only...Code:/** Automatic power-off when no button is pressed for a while (in s).* - applies to auto-hold mode only* - uncomment to enable, also adjust timeout (in s)*/#define POWER_OFF_TIMEOUT 60But these 'auto-hold' related settings are commented out... Should they be?Code:/** C/L monitors: auto hold* - requires display with more than two text lines* - uncomment to enable (one or more)*///#define SW_MONITOR_HOLD_ESR /* auto-hold ESR (C monitor) *///#define SW_MONITOR_HOLD_L /* auto-hold L (L monitor) *//** Set the default operation mode to auto-hold.* - instead of continous mode* - uncomment to enable*///#define UI_AUTOHOLD

author: .RC.
author_rank: Frequent Contributor
timestamp: July 03, 2023, 07:45:51 am
content: I would give it a good clean. Sometimes mine does that.
LeCroy Arbstudio AWG digital pod? - Page 1
Forum section: electronics / testgear

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: May 15, 2023, 07:18:28 pm
content: Does anyone have experience with installing USB drivers for Lecroy Arbstudio USB AWG generator? I have what looks like the original CD that came with it with setup.exe dated 4/7/2010. But when I try to install, it says "you have to run the 64-bit version of dpinst.exe on this machine" and it doesn't install USB drivers. I tried to contact Lecroy, but they haven't responded. Is there maybe a newer version of the software?

author: DaJMasta
author_rank: Super Contributor
timestamp: May 16, 2023, 06:02:00 am
content: Is there a 64 bit installer on the CD as well? With a 2010 date I would expect both would be available.That said, if LeCroy doesn't get back to you and there's nothing else on the disk, you could try making a VM of a 32 bit OS (maybe XP), then passing the VM the USB connection and installing the drivers in the VM. Not the most elegant workaround in terms of workflow, but it's worked surprisingly well for me when interfacing with older equipment that communicates through standard busses (USB, serial, ethernet, etc.)

author: coromonadalix
author_rank: Super Contributor
timestamp: May 16, 2023, 06:13:40 am
content: could you host an iso of your disk i would like to check a few things, i did not find the download at their website, and #%% they want a register ....

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: May 20, 2023, 08:08:25 am
content: Thanks for the suggestions. I've also read that one can temporary disable windows driver signing and then it might be possible to install the driver. Luckily I didn't have to go that route. I never heard from Lecroy, but I contacted Active Technologies, the Italian company that made these AWG for Lecroy. They replied right away and were nice enough to add my serial number so I can download their driver. Still one needs to register to download, but it seems to work fine.

author: maxwell3e10
author_rank: Frequent Contributor
timestamp: July 01, 2023, 04:53:10 pm
content: I got the AWG to work, now trying to figure out how to use the digital outputs. Apparently it needs a custom breakout digital pod. Does anyone have one of these, I am curious what is inside?