looking for 8753D/E/ES Parts
i recently bought a 8702D on ebay , unfortunatly the seller did a shitty packing job and the unit got banged up so i am looking for a few things to fix the damage?
1.) back feet , i need at least 2 of them
2.) Button cover?
3.) testport coupler , the coupler still works but the connector is bent up in a angle so if anyone has a bad coupler where i can remove the connector i could use it?
|
HP8640B RF Fails Several Seconds After Power Up
I have have had a very reliable?HP8640B that I bought as a parts unit years and rehabbed into a working state, including replacement of the tricky differential gears with brass ones. It has been a most faithful runner up until the other day when I was using it to align a receiver, when the RF output suddenly stopped, and the counter went to 00000. I powered it off and on, and the RF returned for 10-20 seconds and fell silent again. In further power cycles, the RF will occasionally come back on for a matter of a few seconds before failing again.
My first though was of course that one of the power supplies had finally lost a filter cap. So I checked them all for proper voltage and any ripple. None of them had any sign of excessive ripple and all voltages were all spot on EXCEPT the +44.6. As long as the RF is being generated, it's happily at 44.6, but as soon as the RF quits, it rises to 47-49V and the voltage trim pot has no effect. I checked all the discrete components on the 44.6 board including swapping out the U2 723BE regulator. No luck.
I placed a scope directly on the output of the oscillator, both on the counter side and the main output, and it appears there is no RF oscillation happening at this point. In looking at the schematic, I was unable to see any use of the 44.6V supply in this area, so I'm baffled. It appears to use +/-20 and 5.2 but not 44.6. I've heard of heroic repairs of the RF cavity circuitry, but I am praying it's not failing there.?
Any tips or thoughts of what to check next are most appreciated.?
Scott
|
Thanks Jim,
I've found a couple of NI posts talking about my issue and it seems I'm not alone. The advice from NI in the most recent post advises to roll back versions and to not accept any of the newer versions of drivers. Strange really, you would think accepting the defaults during installation would be the safest approach. More as I have it.
I feel your pain, Lou.? A couple years ago I had to install an NI USB-GPIB interface at work to get a PC to talk to a Tek TDS3000 series scope.? Very painful!? It took weeks to get it to work properly.? All I can say is keep at it.
Jim Ford
Sent from my T-Mobile 4G LTE Device
-------- Original message -------- Date: 2/28/22 11:51 AM (GMT-08:00) Subject: Re: [HP-Agilent-Keysight-equipment] Newbie to KE5FX
Thanks to Rich & Nigel for your advice,
I think there may be a problem with my NI MAX installation. The device doesn't have a GPIB ID and the toolbar is empty. I think I need to get that sorted before I worry about anything else.?
![image.png]() On Mon, Feb 28, 2022 at 11:27 PM nigel adams via <bristol.rell6l= [email protected]> wrote: Could it be that you just need an alias for the USB-GPIB-HS to be identified as GPIB0? ? This is usually achieved in the NI software driver? - you can download that from NI and install it – then in NI-MAX utility you can see the device and clicking on it opens it’s details window – usually the ID is GPIB0. ? What do you see if you look at the NI s/w? It should look like the attached. ? Device manager in windows just identifies the hardware by using an ID check. ? Hope it helps. Regards Nigel ? ? Hi All, Still lost but I found this when I tried to start the HP7470A plotter and got a pop-up. I'm sure this must be bleedingly obvious to many of you out there but could someone direct me on how to either change the GPIB adapter address to GPIB0 or how to configure connect.ini? ? Hi, I'm looking for help with the setup of the KE5FX software,?I'm not really sure what to expect. I've installed a NI GPIB-USB-HS adapter and drivers on my PC. It shows up in the device manager as NI GPIB-USB-HS which I assume is correct. In the GPIB configurator I've edited the connect.ini file so is_prologix = 0 but what do I do about the NI interface? The notes in the ini file say "edit interface_settings accordingly" but what's the right setting? Is there someone out there using the same HW & SW that could point me in the right direction?
|
I feel your pain, Lou.? A couple years ago I had to install an NI USB-GPIB interface at work to get a PC to talk to a Tek TDS3000 series scope.? Very painful!? It took weeks to get it to work properly.? All I can say is keep at it.
Jim Ford
Sent from my T-Mobile 4G LTE Device
toggle quoted message
Show quoted text
-------- Original message -------- From: Lou Blasco <vk3alb@...> Date: 2/28/22 11:51 AM (GMT-08:00) Subject: Re: [HP-Agilent-Keysight-equipment] Newbie to KE5FX
Thanks to Rich & Nigel for your advice,
I think there may be a problem with my NI MAX installation. The device doesn't have a GPIB ID and the toolbar is empty. I think I need to get that sorted before I worry about anything else.?
On Mon, Feb 28, 2022 at 11:27 PM nigel adams via <bristol.rell6l= [email protected]> wrote: Could it be that you just need an alias for the USB-GPIB-HS to be identified as GPIB0? ? This is usually achieved in the NI software driver? - you can download that from NI and install it – then in NI-MAX utility you can see the device and clicking on it opens it’s details window – usually the ID is GPIB0. ? What do you see if you look at the NI s/w? It should look like the attached. ? Device manager in windows just identifies the hardware by using an ID check. ? Hope it helps. Regards Nigel ? ? Hi All, Still lost but I found this when I tried to start the HP7470A plotter and got a pop-up. I'm sure this must be bleedingly obvious to many of you out there but could someone direct me on how to either change the GPIB adapter address to GPIB0 or how to configure connect.ini? ? Hi, I'm looking for help with the setup of the KE5FX software,?I'm not really sure what to expect. I've installed a NI GPIB-USB-HS adapter and drivers on my PC. It shows up in the device manager as NI GPIB-USB-HS which I assume is correct. In the GPIB configurator I've edited the connect.ini file so is_prologix = 0 but what do I do about the NI interface? The notes in the ini file say "edit interface_settings accordingly" but what's the right setting? Is there someone out there using the same HW & SW that could point me in the right direction?
|
Thanks to Rich & Nigel for your advice,
I think there may be a problem with my NI MAX installation. The device doesn't have a GPIB ID and the toolbar is empty. I think I need to get that sorted before I worry about anything else.?
On Mon, Feb 28, 2022 at 11:27 PM nigel adams via <bristol.rell6l= [email protected]> wrote: Could it be that you just need an alias for the USB-GPIB-HS to be identified as GPIB0? ? This is usually achieved in the NI software driver? - you can download that from NI and install it – then in NI-MAX utility you can see the device and clicking on it opens it’s details window – usually the ID is GPIB0. ? What do you see if you look at the NI s/w? It should look like the attached. ? Device manager in windows just identifies the hardware by using an ID check. ? Hope it helps. Regards Nigel ? ? Hi All, Still lost but I found this when I tried to start the HP7470A plotter and got a pop-up. I'm sure this must be bleedingly obvious to many of you out there but could someone direct me on how to either change the GPIB adapter address to GPIB0 or how to configure connect.ini? ? Hi, I'm looking for help with the setup of the KE5FX software,?I'm not really sure what to expect. I've installed a NI GPIB-USB-HS adapter and drivers on my PC. It shows up in the device manager as NI GPIB-USB-HS which I assume is correct. In the GPIB configurator I've edited the connect.ini file so is_prologix = 0 but what do I do about the NI interface? The notes in the ini file say "edit interface_settings accordingly" but what's the right setting? Is there someone out there using the same HW & SW that could point me in the right direction?
|
Re: Agilent ESA or ESA-L power supply.
Hi Lothar.
I receive the package from artekmedia on 25/2 but no references to the power supply.
Thanks anyway.
Rui Martins?
toggle quoted message
Show quoted text
E4401-90310? , you can order it from ARTEK MEDIA .
Having said this however I am not sure if the PSU is documented
?
Sent from for Windows
?
?
I need the supply schematics for E 4401 analyzer.
I think is the same for all the ESA or ESA-L spectrum Analyzers.
|
Re: Readout from HP54602A U75 Needed (CORRECTION)
The part for U75 on the HP54602A PCB is a DS1220 and should be read as a DS1220. The B model uses the DS1225. The DS1220 may be replaced by a M48Z12 available from Mouser.
Sorry for the confusion.
|
Re: 8350B *restoration adventure?*
Let me give you one piece of advice as far as ebay goes ,? don’t take the prices at face value , ALWAYS look for listings that have best offer enabled and throw a lowball offer on it , I had good success with this approach ,? I got a 8341B?
that was listed at $1999 for $499 and a 8702D VNA listed at $899 for $300
A lot of sellers look at what other listings are asking and just put it out there at a similar price but are negotiable
?
Sent from for Windows
?
toggle quoted message
Show quoted text
Hi Ruben,
?
On my side, I have just finished the restoration of my 8350B and did a complete alignment. It meets all specifications.
I also finished with the 83595A plugin, changed some parts and realigned it...it wasn't as easy as I would have liked, but everything works fine now.
?
So, maybe I can help you, I'm going to measure the currents of the different power supplies, as well as the associated voltages and ripple, it will give you an idea for the next steps.
I have 3 different plugins; I will look at the different loads.
?
I hope you find the plugin you want at a reasonable price.
?
Regards
Yves
?
?
Thank you for your words Yves, for now I have put the 8350B project on hold. I am looking for a plugin at a good price to continue checking current consumption. Again, best price tags are on the States, but high freight costs and customs
to Spain makes the deals more difficult. So I must be patient and still searching every day.
Regards,
Ruben
|
Re: 8350B *restoration adventure?*
Hi Ruben, ? On my side, I have just finished the restoration of my 8350B and did a complete alignment. It meets all specifications. I also finished with the 83595A plugin, changed some parts and realigned it...it wasn't as easy as I would have liked, but everything works fine now. ? So, maybe I can help you, I'm going to measure the currents of the different power supplies, as well as the associated voltages and ripple, it will give you an idea for the next steps. I have 3 different plugins; I will look at the different loads. ? I hope you find the plugin you want at a reasonable price. ? Regards Yves ? ? Thank you for your words Yves, for now I have put the 8350B project on hold. I am looking for a plugin at a good price to continue checking current consumption. Again, best price tags are on the States, but high freight costs and customs to Spain makes the deals more difficult. So I must be patient and still searching every day.
Regards,
Ruben
|
Re: Agilent ESA or ESA-L power supply.
E4401-90310? , you can order it from ARTEK MEDIA .
Having said this however I am not sure if the PSU is documented
?
Sent from for Windows
?
toggle quoted message
Show quoted text
From: Rui Oliveira Martins via groups.io
Sent: Monday, February 28, 2022 10:44 AM
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] Agilent ESA or ESA-L power supply.
?
I need the supply schematics for E 4401 analyzer.
I think is the same for all the ESA or ESA-L spectrum Analyzers.
|
Agilent ESA or ESA-L power supply.
Hi to all.
I need the supply schematics for E 4401 analyzer.
I think is the same for all the ESA or ESA-L spectrum Analyzers.
Tanks in advance.
CT1EBH
Rui Martins.
|
Readout from HP54602A U75 Needed
Hello,
I have a HP54602A (not B) DSO that I need a binary or hex readout of the contents of U75 the evil DS1220 or M48Z18 battery backed lithium SRAM. Mine has gone flat.
Anyone who has a 54600 series scope should read these out and store the contents for safekeeping. I know that you can self calibrate this scope but without the base information in the SRAM calibration is of no use,.
Thank you for taking the time to read my message.
Sam
W3OHM
|
Re: HP Masked Microcontroller Question
There use to be a normalizer/offset Option 6 that could be purchased (see Ebay pic below)? Per the photo, this option was available with the HP5316A which included HPIB functionality.? The Option 6 was discontinued somewhere between the 5316A and 5316B, I believe.? My guess due to poor sales.? Studying the schematics between the 5316A and B showed that the only difference was that the interface socket used to bridge a ribbon cable between the Option 6 to 5316B was removed.? Also, the CE2 and CE3 (chip enable) signals are shared between the Option 6 and the Option 3.? These two signals were originally designated for reading the Option 6 switches per the HP5316A manual. So... what this is really about is whether I can come up with a way to reimpliment the Option 6 capability in a more modern fashion.? So, if the main counter microprocessor hasn't changed it appears to me that the Option 6 still is available and some clever hardware mod would allow its use.? The Option 6 had it's own service manual but I have not been able to find it.? I think I will grab the Logic analyzer and reverse engineer the signals related to the Option 6 to get a better idea of what is going on. If anyone has any comments/advise, it would be appreciated. Thanks Jim 
|
Re: HP-8753E Reading HPGL Files
Unfortunately, JPEG format graphic files are far less than ideal for this type of graphic. John's plotter emulator has been my go-to every time I need to grab a screen.? It makes it easy to manipulate or drop directly into a document from a GUI environment.
Thanks, Mr. Miles!
|
Could it be that you just need an alias for the USB-GPIB-HS to be identified as GPIB0? ? This is usually achieved in the NI software driver? - you can download that from NI and install it – then in NI-MAX utility you can see the device and clicking on it opens it’s details window – usually the ID is GPIB0. ? What do you see if you look at the NI s/w? It should look like the attached. ? Device manager in windows just identifies the hardware by using an ID check. ? Hope it helps. Regards Nigel ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Lou Blasco
Sent: 28 February 2022 10:04
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Newbie to KE5FX? Hi All, Still lost but I found this when I tried to start the HP7470A plotter and got a pop-up. I'm sure this must be bleedingly obvious to many of you out there but could someone direct me on how to either change the GPIB adapter address to GPIB0 or how to configure connect.ini? ? Hi, I'm looking for help with the setup of the KE5FX software,?I'm not really sure what to expect. I've installed a NI GPIB-USB-HS adapter and drivers on my PC. It shows up in the device manager as NI GPIB-USB-HS which I assume is correct. In the GPIB configurator I've edited the connect.ini file so is_prologix = 0 but what do I do about the NI interface? The notes in the ini file say "edit interface_settings accordingly" but what's the right setting? Is there someone out there using the same HW & SW that could point me in the right direction?
|
Re: 8350B *restoration adventure?*
Thank you for your words Yves, for now I have put the 8350B project on hold. I am looking for a plugin at a good price to continue checking current consumption. Again, best price tags are on the States, but high freight costs and customs to Spain makes the deals more difficult. So I must be patient and still searching every day.
Regards,
Ruben
|
Hi Lou:
If you write Jon, KE5FX you will get a response, if none received here. I use ProLogix Adapters. As such I am not sure how much help I an be without having the adapter here to play with.?
toggle quoted message
Show quoted text
On Feb 28, 2022, at 5:04 AM, Lou Blasco <vk3alb@...> wrote:
? Hi All,
Still lost but I found this when I tried to start the HP7470A plotter and got a pop-up. I'm sure this must be bleedingly obvious to many of you out there but could someone direct me on how to either change the GPIB adapter address to GPIB0 or how to configure connect.ini?
Hi,
I'm looking for help with the setup of the KE5FX software,?I'm not really sure what to expect.
I've installed a NI GPIB-USB-HS adapter and drivers on my PC. It shows up in the device manager as NI GPIB-USB-HS which I assume is correct. In the GPIB configurator I've edited the connect.ini file so is_prologix = 0 but what do I do about the NI interface? The notes in the ini file say "edit interface_settings accordingly" but what's the right setting?
Is there someone out there using the same HW & SW that could point me in the right direction?
|
Hi All,
Still lost but I found this when I tried to start the HP7470A plotter and got a pop-up. I'm sure this must be bleedingly obvious to many of you out there but could someone direct me on how to either change the GPIB adapter address to GPIB0 or how to configure connect.ini?
Hi,
I'm looking for help with the setup of the KE5FX software,?I'm not really sure what to expect.
I've installed a NI GPIB-USB-HS adapter and drivers on my PC. It shows up in the device manager as NI GPIB-USB-HS which I assume is correct. In the GPIB configurator I've edited the connect.ini file so is_prologix = 0 but what do I do about the NI interface? The notes in the ini file say "edit interface_settings accordingly" but what's the right setting?
Is there someone out there using the same HW & SW that could point me in the right direction?
|
The spacing of the 2nd and 3rd columns has gone wrong - for example, first line should read:
| 44470 |
2 |
??????? 10 channel relay mpx |
1 |
1 |
|
I have the following plug ins:
| ? |
? |
? |
IO plug |
short |
| 44470 |
2 |
10
channel relay mpx |
1 |
1 |
| 44471 |
5 |
10
channel general purpose relay |
3 |
2 |
| 44472 |
2 |
dual
4 channel VHF switch |
2 |
0 |
| 44473 |
3 |
4 by
4 relay matrix switch |
3 |
0 |
| 44474 |
2 |
15
channel digital IO |
1 |
1 |
The final column shows how many terminal blocks I am missing.
--
Michael Kellett,
MK Electronics Ltd.,
Unit 4,
Greenlaw,
Castle Douglas,
DG7 2LH,
01556 506999
07968 111148
|
Flannel Tuba
Sam Reaves
RubenRubio