Re: GPIB scripting software?
Agree. Very simple. I use it a lot.
Word of warning: Older HP instruments (and probably others, pre SCPI I'd say) do NOT like the "auto-reply" and you should disable that.
Mark
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Python + prologix adapter is about as simple, portable, and dependency free as it gets.
Open the port with the python "serial" library, and send direct GPIB commands to it.
No need to install any drivers or i/o libraries, basically just plug and play!
On Mon, Sep 16, 2024 at 12:25?AM Anders via <anders.gustafsson= [email protected]> wrote:
I do the same with my own Prologix-clone
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Re: Twelve(+/-) bins of original HP/Agilent manuals free for pickup in San Diego
Hi Stan,
wow thats a big collection. If only i woul live nearby ...
Is there any calibration software on the disks? The 4263a, 4338a, 4339a and many others can't be calibrated without.
Or the manual for a 4282a?? The available scan is unreadable.
I would be very happy to get them and make them available for everyone.
Roland
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Re: Artek Manuals and HP 3325B
Paul, I have one working (mostly) 588 (not "A") and one not working?so well (= for?parts). Both projects at this point, and it's likely I'll not keep them once, hopefully, repaired. My main HP counter does everything I need.? I think we'll need to take this conversation?to the EIP forum, either way. Or risk getting reprimanded here, I suppose. Radu.?
Hi Radu ? I found the EIP 588 B manual on a sight in 2017? and informed Dave about it I have uploaded all the EIP manuals to Groups.io site EIP-Microwave excluding the EIP 588 B service manual And there is a note explaining that the manual is at Artek as I have both the counter and the manual I assume you are not on the EIP sight? if you have a EIP 588 B available then I could be in the market for it Regards Paul ? From: [email protected] [mailto:[email protected]] On Behalf Of Radu Bogdan Dicher
Sent: 17 September 2024 01:52
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Artek Manuals and HP 3325B ? As I have a couple of EIP 588s in the queue at my bench, I've been looking for the SM out there. Did a quick search, and bam!, one of the free libraries to the rescue!... And as I look closer, in the preview, what do I see? It's an upload of Artek's proprietary PDF. As conspicuous as shady stuff like this can get.? ? I pushed?the cost of the manual to Linda (PayPal through their website), but she wrote?me?back?telling me she's in the hospital?(as Ron states), and that it'll be at least a week until she can send it to me. I told her no worries whatsoever, health always comes first. And certainly, that's longer than my impatience is currently willing to sign off on, but I now feel I'm on the right side of things downloading that file from the free repository, knowing that I fully paid Artek (Dave/Linda) for it.? I'm sure most, if not?all in this community would essentially proceed the same way. ? The Artek office mgr was out due to medical and is back now, filling orders once or twice a week. I'll let them know to expedite if possible.
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Re: 8566B Attenuator Service
On Monday, September 16, 2024 at 02:47:48 PM PDT, Chuck Harris <cfharris@...> wrote:
If you were working for the telephone company, Easy does it is a good motto for this work. -Chuck Harris (not a Bell guy, but taught contact burnishing by one.) Well...as a former "Bell guy"...(12 years Western Electric Installation)....17+ years Central Office Tech...I kinda agree Tho what I used on relay contacts in the #1 and #1A ESS Switching Systems was BOND PAPER strips soaked in suitable liquid contact
cleaner...most of said relays had Palladium plated contacts rather than gold plating tho...
Jim
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Re: GPIB scripting software?
Python + prologix adapter is about as simple, portable, and dependency free as it gets.
Open the port with the python "serial" library, and send direct GPIB commands to it.
No need to install any drivers or i/o libraries, basically just plug and play!
On Mon, Sep 16, 2024 at 12:25?AM Anders via <anders.gustafsson= [email protected]> wrote: I do the same with my own Prologix-clone
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I've written an open source Linux program to control the Hewlett Packard 8970 Noise Figure Meter.
It can create plots of noise figure and gain from the acquired HP8970 data.
Now available on Github
I describe it here on YouTube
RPMs for Fedora Linux are available at
?
Michael
?
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Re: Artek Manuals and HP 3325B
Hi Radu ? I found the EIP 588 B manual on a sight in 2017? and informed Dave about it I have uploaded all the EIP manuals to Groups.io site EIP-Microwave excluding the EIP 588 B service manual And there is a note explaining that the manual is at Artek as I have both the counter and the manual I assume you are not on the EIP sight? if you have a EIP 588 B available then I could be in the market for it Regards Paul ?
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Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Radu Bogdan Dicher
Sent: 17 September 2024 01:52
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Artek Manuals and HP 3325B ? As I have a couple of EIP 588s in the queue at my bench, I've been looking for the SM out there. Did a quick search, and bam!, one of the free libraries to the rescue!... And as I look closer, in the preview, what do I see? It's an upload of Artek's proprietary PDF. As conspicuous as shady stuff like this can get.? ? I pushed?the cost of the manual to Linda (PayPal through their website), but she wrote?me?back?telling me she's in the hospital?(as Ron states), and that it'll be at least a week until she can send it to me. I told her no worries whatsoever, health always comes first. And certainly, that's longer than my impatience is currently willing to sign off on, but I now feel I'm on the right side of things downloading that file from the free repository, knowing that I fully paid Artek (Dave/Linda) for it.? I'm sure most, if not?all in this community would essentially proceed the same way. ? The Artek office mgr was out due to medical and is back now, filling orders once or twice a week. I'll let them know to expedite if possible.
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Re: GPIB scripting software?
On Sun, Sep 15, 2024 at 02:12 AM, Ulf Kylenfall wrote:
I saw a thread about Matlab
Not sure of the advantage of Matlab... unless you want to do some fancy (or not so fancy) processing on the data.
If you do, and can write Matlab code... or just drive it from the Matlab Console... then Matlab would do it.
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A free... pretty faithful clone of Matlab is Octave.
Unless you need Simulink , and Toolboxes... then free doesn't cost very much.
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These two packages are for 'vector based' programming, if that's your thing.
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Otherwise, and maybe, with all the Python libraries available... Python is pretty good too.
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Re: GPIB scripting software?
On Sun, Sep 15, 2024 at 03:27 AM, Askild wrote:
Python is another possibility.
Yes. If the instrument you are using does SCPI, then it's not to hard to write some code in Python to do some basic measurements.
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AFAIK, if you have the working GPIB hardware.
Keysight 82357B USB/GPIB Interface
or
Keysight 82350B PCI GPIB Interface
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and have downloaded and installed?
pyVISA (Python Library for VISA), free
Keysight VISA (Virtual Instrument Software Architecture) an API for instrument control, has GPIB
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The software might be free; but, the devil will be in the details, if you have to manually install them.
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Here is a basic Python program get an instrument to measure voltage using SCPI (Standard Commands for Programmable Instruments) command set,if the instuments you are using supports it. Not sure the 897B does.
Any program bugs, are free, like the other software.
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import pyvisa
# Initialize VISA Resource Manager
rm = pyvisa.ResourceManager()
# Find? instruments
instruments = rm.list_resources()
print("Available Instruments:", instruments)
# Open session to an instrument (assuming GPIB device at address 3)
instrument = rm.open_resource('GPIB0::3::INSTR')
# Write a command
instrument.write('MEASURE:VOLTAGE?')
# Read response
response = instrument.read()
print("Instrument Response:", response)
# Close? session
instrument.close()
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You can do something similar coding in C, and compile it; but, there's way more fiddly bits to get wrong.
?
?
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Re: Artek Manuals and HP 3325B
As I have a couple of EIP 588s in the queue at my bench, I've been looking for the SM out there. Did a quick search, and bam!, one of the free libraries to the rescue!... And as I look closer, in the preview, what do I see? It's an upload of Artek's proprietary PDF. As conspicuous as shady stuff like this can get.? I pushed?the cost of the manual to Linda (PayPal through their website), but she wrote?me?back?telling me she's in the hospital?(as Ron states), and that it'll be at least a week until she can send it to me. I told her no worries whatsoever, health always comes first. And certainly, that's longer than my impatience is currently willing to sign off on, but I now feel I'm on the right side of things downloading that file from the free repository, knowing that I fully paid Artek (Dave/Linda) for it.?
I'm sure most, if not?all in this community would essentially proceed the same way. Radu.?
Tim,
?
The Artek office mgr was out due to medical and is back now, filling orders once or twice a week.
I'll let them know to expedite if possible.
?
Regards, Ron
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Re: Agilent E4406 fails to turn on - CULPRITS IDENTIFIED
Hi all,
Thanks to Milan's pointer I de-soldered the two electrolytic
capacitors on the little PSU daughter board and they were faulty.
The 47uF@C5 was only 22uF and the 33uF@C6 thinks its a 100ohm
resistor!?
Pic of board below before I de-soldered C6.
thanks to all for suggestions.
regards
Tim
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Re: Thermal Couple attached to heat sink
John,
That pad is thermally conductive and is called a TIM pad. TIM? meansThermal Interface Material.
Both Mouser & Digikey among others sell this stuff. Bergquist is one manufacturer but there are many others.
If you don't know the thermal resistance or thermal conductivity of the pad that came off then get the new pad with the LOWEST thermal resistance or the HIGHEST thermal conductivity.
As for thickness get the same as or close to the old material if you can.
I'm not sure what kind of heatsink retention hardware is used but it needs to provide a moderate clamping force? on the TIM.
There is a lot more to all this but with the limited information about the old material these general guidelines should work.
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Regards, WT
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Re: 8566B Attenuator Service
Mark - will do.
Chuck - these contacts were not gold plated.
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Re: 8566B Attenuator Service
Hi Jinxie - Please let us know if the calibration works now.
Mark
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Thanks, Vladan.
Whilst I'd like to do a thorough job on this attenuator, I really need to clear my bench. This whole thing has gone on far too long and I have a backlog of 'stuff' to deal with. Consequently, I'm going to have to put it back together as-is and deal with
the o-rings as and when they fail in the future, much as I'd like to sort them out now. It's unfortunate, but time just isn't on my side.
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Re: 8566B Attenuator Service
If you were working for the telephone company, applying abrasive of any sort to relay contacts would have gotten you fired on the spot. A single technician, helpfully using such a technique could put a whole exchange out of business pdq. Ok, why shouldn't you do that? First, is the loss of gold, which is not insignificant. Second, is the loose abrasive will come off of the wet or dry, and embed in the very much softer gold, preventing good contact closure. And, third, you will alter the very carefully designed shape of the contacts by adding a flat spot... forever changing their behavior, and useful life. Ok, so what should you have done? Well, asking someone would be a good first choice, but given the length of this thread, most good advice was buried long ago. The telephone company issued burnishing tools to technicians. This tool was made of spring steel, and had fine scratches (made by a diamond stone, perpendicular to motion. They acted sort of like a file, only they did not remove any gold, just pushed it around a bit. NO MORE ABRASIVES JINXIE! If you cut through the gold down to the base metal, you will have a contact that will fail next time the weather changes. Make a burnishing tool out of a piece of shim stock, and drag it over a diamond sharpening stone several times until it has a bunch of fine scratches in it. Be sure to eliminate any burs from the edges... you don't want them cutting things up. using light pressure, rub the tool back and forth on the contact, while changing its angle to match the contact profile. Easy does it is a good motto for this work. -Chuck Harris (not a Bell guy, but taught contact burnishing by one.) On Mon, 16 Sep 2024 09:04:53 -0700 "Jinxie via groups.io" <paul666@...> wrote: Progress! There was nothing wrong with the logic and the solenoid was
*not* energized long-term after all. That 20dB pad was operated by a
solenoid which had some kind of contaminant on its lower Y springs
which the solvents I'd tried were unable to shift. However, a few
light strokes with some 1500 grit wet n dry paper and it's throwing
back and forth perfectly now as far as I can see and is no longer
stuck 'on' as it was formerly. I just wonder what that substance on
the contacts could have been and how it got there? We'll never know I
guess. :-/ Anyway, thanks all. Hopefully it'll calibrate correctly
now. <crosses fingers>
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Re: 8566B Attenuator Service
Thanks, Vladan.
Whilst I'd like to do a thorough job on this attenuator, I really need to clear my bench. This whole thing has gone on far too long and I have a backlog of 'stuff' to deal with. Consequently, I'm going to have to put it back together as-is and deal with the o-rings as and when they fail in the future, much as I'd like to sort them out now. It's unfortunate, but time just isn't on my side.
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Pb with HP16535A multi probes expansion card for HP16500B logic analyser.
Hi,
?
Yesterday, while using my logic analyser (HP16500B), a component suddenly burned on my HP16535A multi probes expansion card. The PCB is a little damage, but this is fixable.
I tested the board and it is always completely functional. Damages are only in the top layer where the capacitor pad was.
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This component is a polarized tantalum capacitor. I think it is used for decoupling, but i am not sure. He is completely burned, so i can't see his reference or value. If someone has this board, can he give my his value ? He is referenced C66 on the board and near the flat ribbon connector.
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Thanks for your help.
?
?
?
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Re: 8566B Attenuator Service
On Mon, Sep 16, 2024 at 09:04 AM, Jinxie wrote:
I just wonder what that substance on the contacts could have been and how it got there? We'll never know I guess.
It's probably residue from a silicone lubricant which was used on attenuators built before mid-1985. The stuff was causing problems so it was eventually abandoned. Unfortunately, a lot of attenuators were scrapped because of this. The factory considers those attenuators unrepairable because of the contamination. I often wonder if the o-rings were attacked by lubricant.
?
If this is what you encountered, then the lubricant may also be present elsewhere in the attenuator. You may want to find a way to clean the rest of the contacts before you put the whole thing together. You still have to replace the o-rings, so this is a good time to figure out if there is a solvent that can remove the contamination.
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Pay attention to the gap between the solenoid armature and the magnet pole pieces. This gap (on both ends) is controlled by the o-rings.
?
For those who have very old attenuators, there was a time when o-rings were not used. The plungers in those older attenuators were white color.
?
Vladan
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Re: GPIB scripting software?
?
I have submitted my e-mail address to Harke Smits.
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In a project some years ago, I used python routines written by others
but never had the time to dive into this language.
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Looking forward to what I will receive.
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Cheers
?
Ulf Kylenfall
SM6GXV
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Re: Artek Manuals and HP 3325B
Tim,
?
The Artek office mgr was out due to medical and is back now, filling orders once or twice a week.
I'll let them know to expedite if possible.
?
Regards, Ron
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jim
vk2bea
Paul Bicknell
Jinxie