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  1. HP-Agilent-Keysight-Equipment
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Expanded Topics Messages
Date
Re: HP 3403C True RMS Voltmeter display fault

 

Nice. I hope mine works as well when I eventually get back to it.? Ed
Threads for screws on 8656 Siggen

 

Hi can someone tell me what thread the screws are that hold the back panel on? HP8656. I am assuming they are 5/32 as 3mm and 4mm metric are either too small or too big. or wrong thread
Are the UNF , UNC or something else? imperial thread screws are not common in Australia, and I have lost all teh screws out of the back of my sig gen.
?I think the ones i ordered were bsw and of course don't fit
?
Wayne?
VK2WDE
microscope / high magnification camera options for soldering, faults, and other examinations/inspections

 

Having done enough (red) eye cracking smd soldering jobs or inspections in case of suspected failure (cold joints, etc.), I've decided to invest a bit on a better optical setup.
?
There's plenty of cameras on the marketplaces and retailers out there, but what are some better choices? Good experiences with some specific models??
?
Also, what to watch for? Specs, minimal magnification that crosses over a good threshold?
?
I have a couple of large screens at my bench - I'm thinking this will be best done by shooting this over to one of those. USB, HDMI?...?
?
Lighting/LEDs making a significant difference?
?
Thank you for your input.
Radu.?
Re: 8643A failure

 

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Thanks for posting a follow-up. Glad your 8643A is working.

Tony
AD0VC

From: [email protected] <[email protected]> on behalf of Bill Carver <bill@...>
Sent: Sunday, March 16, 2025 6:26 PM
To: [email protected] <[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] 8643A failure
?
My 8643 failure message indicated 5V supply failure. Voltage at test
point measured 4.9 volts. I replaced all the capacitors in both
switching supplies of the 8643A. Both supplies checked out OK before
capacitor changes, and OK after capacitor changes. But I'm happy it has
new capacitors.

The battery voltage was OK, but being old and not interested in leaks,
it has a new set of 3xAAA in little plastic holder.

After reading about tinned Molex connectors developing voltage drops I
sprayed DeOxit on pins of the power supply connector, and both input and
output connectors of the power filter board. And of course the cable
pins that plugged into those connectors. Power supply and filter board
input connectors were tinned pins. Pins on the output end of the filter
board were gold. Did the best I could, but it wasn't as good a job as I
would like to have done.

NONE of the connector bodies were discolored. There was maybe 1/4 volt
drop, and not that many hours of use, before I took it apart. Probably
not enough time and heat to discolor the Nylon.

Applied power, and test point now measures 5.10 volts. So looks like it
was voltage drop in the tinned Molex connectors.? No error message.
While I haven't checked exhaustively to verify everything is working,
but I expect it's OK again.

THANK YOU GUYS FOR POINTING TO THE CONNECTORS

Regards - Bill W7AAZ
Re: 8643A failure

 

My 8643 failure message indicated 5V supply failure. Voltage at test point measured 4.9 volts. I replaced all the capacitors in both switching supplies of the 8643A. Both supplies checked out OK before capacitor changes, and OK after capacitor changes. But I'm happy it has new capacitors.

The battery voltage was OK, but being old and not interested in leaks, it has a new set of 3xAAA in little plastic holder.

After reading about tinned Molex connectors developing voltage drops I sprayed DeOxit on pins of the power supply connector, and both input and output connectors of the power filter board. And of course the cable pins that plugged into those connectors. Power supply and filter board input connectors were tinned pins. Pins on the output end of the filter board were gold. Did the best I could, but it wasn't as good a job as I would like to have done.

NONE of the connector bodies were discolored. There was maybe 1/4 volt drop, and not that many hours of use, before I took it apart. Probably not enough time and heat to discolor the Nylon.

Applied power, and test point now measures 5.10 volts. So looks like it was voltage drop in the tinned Molex connectors.? No error message. While I haven't checked exhaustively to verify everything is working, but I expect it's OK again.

THANK YOU GUYS FOR POINTING TO THE CONNECTORS

Regards - Bill W7AAZ
Re: HP859x Power Supply Schematics

 

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thanks Chris for the superb job !
adri
?
?
?
?
?

----- Messaggio originale -----
Da: Chris Weir via groups.io <chris.a.weir@...>
Rispondi a: <[email protected]>
Inviato: 07/03/2025 16:16:31
Oggetto: Re: [HP-Agilent-Keysight-equipment] HP859x Power Supply Schematics
Anyone who downloaded my schematics of the Output Regulator should update them with those I have just uploaded to the files section, along with the schematics of the other two boards. I found a couple of errors, and I have updated some signal names to better reflect their function.
?
Chris
Re: Keysight 23522a Binary Arb Files

 

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Hi Tom,

?

There is some information about this format here:

?

Yves

?

?

De?: [email protected] <[email protected]> De la part de TomS via groups.io
贰苍惫辞测é?: 16 mars 2025 09:23
??: [email protected]
Objet?: [HP-Agilent-Keysight-equipment] Keysight 23522a Binary Arb Files

?

Hello Community,

?

I got a 33522a Arb Signal Generator. I'm still looking for a file format description of the binary arb file format ( *.barb ).

I found some information about this format and I still can create this files with the basic Parameters

- Number of Channel

- Numbers of Data Points

- Vmax

- Vmin

- Checksum

- Datapoints

?

I found some information about the ASCII Version of the file format ( *.arb ) and there are some more parameter i can set.

The problem ist for using the whole 16M space i do need the binary file structure.

?

Finally there are several 32bit or 64bit int / float values which are unknown for me. IT seems to me this unknown values could set a lot of interesting Parameters.

Is anyone in this group who has a full description of the *.barb file format for the 33522a series?

?

Alternative could be someone who hast the keysight sw benchvue with Wave Form Option for creating such binary arb Files. He could create a Set of Files with different settings. This could analyzed by my sw.

?

Thanks and best regards

TomS
Re: HP8510C CalKit file .CK_ format

 

Hi Marcus,
?
Thank you for your idea! I followed your idea of sending commands to 8510c let it generate a binary file.
?
I ended up writing a very small and primitive XML parser that's good enough to understand the Keysight .xkt file, generates GPIB commands and convert some of the newer Keysight parameters so that the 8510C will take.
?
Thank you again.
?
Regards,
Calvin
?
?
?
Re: 3" disks for 8566A/B, 8568A/B on HP 9000 Series 200 Computers - Any interest in images?

 

I am using an old Toshiba Portege 7200 laptop which has the slim floppy
drive in the docking station and it runs WinXP.

This laptop has a P3 CPU/128MB RAM/64GB PATA IDE SSD. Never had issues
with it reading/writing floppy disks.

I especially kept it for work with floppy disks and parallel port
communication.

On 16/03/2025 20:10, Ed Marciniak via groups.io wrote:
Your PC must support 256 and 512 byte sectors and the number of sectors
per track used by LIF formats to successfully read/write disks. “Super
IO” chips that implement PS2 keyboard/mouse, IDE, a parallel and one or
two serial ports plus a floppy interfaces should have no problem(usually
80486 and earlier Pentium). Somewhat newer systems that had the parallel
port and floppy, serial/parallel/keyboard via the LPC interface also
usually have no trouble(late 486 or earlier Pentium to later pentium
maybe P2/P3 typically). Anything Pentium 4, core, core2 and newer you’re
probably going to be out of luck. There might be some exceptions, like
certain servers that had an LPC interface for a parallel port (for
license dongles) that also happen to retain a floppy interface.

In principle, a USB device could support non DOS formats but most likely
do not. There are some specialized hardware out there .. flux something
or another intended to read raw media that could do the job via USB.

Something like an old D630, or more generally D600 to D630 and D800 to
D830 that can have a floppy, CD-R, DVD or battery in a hot swap bay
that’ll do it as well.
Re: Artek manuals

 

I contacted them, reply was that a search of email folders didn't show this sender.
Use this email address, from their website.
?
regards, Ron
-
Re: 3" disks for 8566A/B, 8568A/B on HP 9000 Series 200 Computers - Any interest in images?

 

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Your PC must support 256 and 512 byte sectors and the number of sectors per track used by LIF formats to successfully read/write disks. “Super IO” chips that implement PS2 keyboard/mouse, IDE, a parallel and one or two serial ports plus a floppy interfaces should have no problem(usually 80486 and earlier Pentium). Somewhat newer systems that had the parallel port and floppy, serial/parallel/keyboard via the LPC interface also usually have no trouble(late 486 or earlier Pentium to later pentium maybe P2/P3 typically). Anything Pentium 4, core, core2 and newer you’re probably going to be out of luck. There might be some exceptions, like certain servers that had an LPC interface for a parallel port (for license dongles) that also happen to retain a floppy interface.

In principle, a USB device could support non DOS formats but most likely do not. There are some specialized hardware out there .. flux something or another intended to read raw media that could do the job via USB.

Something like an old D630, or more generally D600 to D630 and D800 to D830 that can have a floppy, CD-R, DVD or battery in a hot swap bay that’ll do it as well.
Re: 3" disks for 8566A/B, 8568A/B on HP 9000 Series 200 Computers - Any interest in images?

 

?
Tried the Github version v2.0.0 as suggested. It could not read any of the disks
Tried Keysights LIFUtils. It could not even format a 3" floppy to LIF using XP or W10.
(Both O/S could read and format a floppy in Microsoft formats so the h/w is OK.)
?
After at couple of hours I gave up.
?
I think I can still have an old original HP 3 1/2 " floppy disk unit somewhere
with a GPIB interface. I also have a HP Z400 with a NI GPIB card used for KE5FX VNA utilities.
?
Anyone that knows if there is software that can be used for reading out the contents
using GPIB?
?
Now it is man against the machines...
?
Ulf
SM6GXV
?
?
Keysight 23522a Binary Arb Files

 

Hello Community,

I got a 33522a Arb Signal Generator. I'm still looking for a file format description of the binary arb file format ( *.barb ).
I found some information about this format and I still can create this files with the basic Parameters
- Number of Channel
- Numbers of Data Points
- Vmax
- Vmin
- Checksum
- Datapoints

I found some information about the ASCII Version of the file format ( *.arb ) and there are some more parameter i can set.
The problem ist for using the whole 16M space i do need the binary file structure.

Finally there are several 32bit or 64bit int / float values which are unknown for me. IT seems to me this unknown values could set a lot of interesting Parameters.
Is anyone in this group who has a full description of the *.barb file format for the 33522a series?

Alternative could be someone who hast the keysight sw benchvue with Wave Form Option for creating such binary arb Files. He could create a Set of Files with different settings. This could analyzed by my sw.

Thanks and best regards
TomS
Re: HP 4192A Sweep Utility / Michael Kelzenberg

 

I uploaded a backup of the help webpage as well as the "full" installer with dependencies. ?When I installed this last November, I had trouble with the light version but the full worked. ?It is chewing up 173MB of space though, not sure how much we have here. ?Thanks!
File /All HP, Agilent and Keysight instruments in folders by part numbers/4000 to 4999/4192A LF Impedance Analyzer (5 Hz - 13 MHz)/Sweep utilities written by Michael Kelzenberg/Install-4192A-V1-light.exe uploaded #file-notice

Group Notification
 

The following items have been added to the Files area of the [email protected] group.

By: Yves Tardif <yves_tardif@...>

Description:
4192A Sweep Utility https://web.archive.org/web/20190606111327/http://mkelzenb.caltech.edu/software/4192A https://web.archive.org/web/20190906232315/http://mkelzenb.caltech.edu/software/4192A/4192A_help_web.html
Re: HP 4192A Sweep Utility / Michael Kelzenberg

 

On Sun, 16 Mar 2025 at 02:55, Yves Tardif via <yves_tardif=[email protected]> wrote:

Hi,

?

I have the installer "Install-4192A-V1-light.exe," which means that the NI libraries, for example, are not included.

If you would like this program, I can send you a OneDrive link.

?

Yves
Re: HP 4192A Sweep Utility / Michael Kelzenberg

 

On Sat, 15 Mar 2025 at 23:38, pac1085 via <pac1085=[email protected]> wrote:
Hi,
Does anyone know what happened to the website for the HP 4192a sweep utility written by Michael Kelzenberg?? I didn't have it bookmarked so don't recall the URL, I think it was on a university website.? It's completely disappeared from search results online.? I luckily have a copy of the installer I downloaded in November, but someone else asked me where I got it and I can't find it anymore.? It would also be nice to have a copy of the text of the site for reference. ? Thanks!

Could you please upload a copy to this directory which I created for the purpose. Place any information you found - a copy of the webpage would be good.

?
BTW, the file name of the installer is "Install-4192A-V1-full.exe". Even that doesn't show in any search results.
?
Thanks

Dave
Re: HP 4192A Sweep Utility / Michael Kelzenberg

 

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Hi,

?

I have the installer "Install-4192A-V1-light.exe," which means that the NI libraries, for example, are not included.

If you would like this program, I can send you a OneDrive link.

?

Yves

De?: [email protected] <[email protected]> De la part de pac1085 via groups.io
贰苍惫辞测é?: 15 mars 2025 19:47
??: [email protected]
Objet?: Re: [HP-Agilent-Keysight-equipment] HP 4192A Sweep Utility / Michael Kelzenberg

?

I found it. ?Looks like it was a Caltech website that went offline. ?Here is a link to Internet archive backup of it:

It does not include the .exe files, but at least the help section is there.

?

I sent him an e-mail at the address listed on the page.
Re: HP 8673D synthesized generator - need replace RF out connector - partial front panel removal suggestions

 

Thank you, Yves, about working on lower section.

I now wish I had made photographs of top-of-bottom, and bottom-of-top areas. There is a panel separating the two sections, with ~8cm x ~15cm opening near front for wires to pass top-to-bottom. I wish HP had used flexible cable for RF between the sections (two cables), this would make separating the sides easier.

Fortunately, when I was re-assembling, the two UT141 section connectors arrived very close to original position (I had not applied stress during dis-assembly), so there was no worry about reversing the two connectors (which go to switches next to the output step attenuator.)

After repair of 8673D, I tested output using my Tektronix 2755AP analyzer (I have had since ~2015, also old machine almost ready for scrap pile) to look at very narrow span (down to 100 Hz/div) for spectral purity. Tektronix 2755AP analyzer is providing error messages (about IF2 frequency control, it is strange "frequency locked loop" under control of firmware, and it is not PLL!) so it is next big machine for repair here. Adjustments are made with many many many small potentiometers, guided by primitive firmware. New adventure!

Some flat head screws inside (which are in many places along both sides of HP 8673D) are M4 x 4mm. I believe HP used many metric fasteners. I ordered some for spares, because of course it is easy to permanently lose specialty fasteners!

On the output connector (HP part number 08673-60040), it is used in other units, including HP 83595A and 83594A plug-ins for HP 8350A/B, it is used in HP 5348A counter/power meter (which is strange animal, like power meter with no option to set correction factors, and frequency counter, in same box, but with zero integration except shared LCD digits (????), and also connector is used in HP 5343A frequency counter, HP 8563E Opt 026 spectrum analyzer (and other/newer models). From the part number, I believe HP 8673 series was first requirement for front panel 3.5mm connector.

I searched for long time to find spare 08673-60040 connector, it is not so pretty, but it is working OK. Now there is one for sale on auction site (by supplier in israel), but cost is very high. Perhaps create search trigger for part number, after some time I think another will appear.

There is other kind of 3.5mm panel connector from HP, 08513-20017. It is I think used in modular plug-in microwave test equipment (HP 7000 mainframe), it is much lower cost connector on used market. I do not know if bulkhead hole diameter is compatible, but it is possibility. The original connector type is more rugged against damage (but as you found and I found, damage is still common.)

So, thank you for dialog about HP 8673D service adventure, and it is nice machine, almost weighs as much as adult person!

Dave
Re: HP 4192A Sweep Utility / Michael Kelzenberg

 

I found it. ?Looks like it was a Caltech website that went offline. ?Here is a link to Internet archive backup of it:
It does not include the .exe files, but at least the help section is there.
?
I sent him an e-mail at the address listed on the page.
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