Re: I'm old 70+, the 70K system is old; good or bad omen?
Should've clarified? that fans are running and verified all cables are in proper place. Have replaced battery in 70900A so up to speed on these issues...
Other than the front panel LEDs on the? 70900A there is no indication that the L.O. is in the game, or so it seems.?Should it show up in the Address? Map?... if yes then it's MIA.
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From: Gene Silvernail <genesilvernail@...>
Sent: Saturday, November 20, 2021 3:58:40 PM
To: [email protected] <[email protected]>
Subject: Re: [HP-Agilent-Keysight-equipment] I'm old 70+, the 70K system is old; good or bad omen?
?
Thanks Paul for the input,
Unfortunately the 70900a doesn't appear under the Address Map and no instruments are realized when SELECT INSTR is initiated; just counts up to 30 and reports NO instrument found...
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Hi? Gene
?
Welcome to the 70 K equipment ??at $100 you are not going to lose any money
Ok you have all the parts to make it work? your first job is to find out if the 70900 is working? as this is the Hart of the system
I do not have one of your displays? but with just the display and the 70900 you should be able to interrogate the 70900 for its software date
You also need the record any errors ?then you can start sorting things out?
?
One warning? the rack has 2 fans in the base? best suggestion is to remove all units? and make Shure both are working as excessive heat can kill the 70900
?
There are about 150 documents on the 70000 site ?the one that is not there and you might find helpful is the sylph paced tutorial this can be got from Artek
at $10
?
You will also have to check out all the cables on the rear and be careful hear
?
?
Regards Paul
?
?
?
I'm new to the HP 70K system and just started on the learning process to decide whether to salvage parts or restore what I believe is? a true piece of great American engineering and implementation. When I first saw this up for bid on
a government bid site it was listed as a spectrum analyzer. That got my interest and less than $100 later I hauled it home and applied liniment to some sore muscles. The modules in this build are...
After pulling the modules and giving a quick look and smell test, I found nothing that cautioned against applying power. Wow, it fired up, well kind of. On cold start I got this start screen...
Reading further in groups, I replaced the 2 lithium? batteries using these leaded ones. Cutting leads where needed makes more sense than soldering.
Restarted and got the notice 6003? that occurs with new battery installs...tried the "press DSP then? SELECT INSTR" and got this...
"No module present" is displayed after a scan with "Column" advancing through to 30...hmmm?
When I look at the address map I do not see the 70900a L.O. module listed...the IF, RF sections and 70205A shown,
That's where am at and rather then go forward blindly anew, I thought asking questions to the more knowledgeable would make big time sense. I have/am using manual Part Number 70900-90116 that I just converted to text searchable and have just started diving
in.?
1. Should the 70900A show in the A-Map or is some initialization/assignments in order for the 70900A to be recognized?
2. I don't intend on attaching a PC to this frame, is it reasonable to expect any use in this configuration? if not, see next question
3. I stash and harvest parts for my own design work. Does this make more sense without aux PC?
BTW I have a fairly large stash of NOS Tek/HP parts that I'm willing to help others with
Pre-Thanks for any help
|
Re: I'm old 70+, the 70K system is old; good or bad omen?
Thanks Paul for the input,
Unfortunately the 70900a doesn't appear under the Address Map and no instruments are realized when SELECT INSTR is initiated; just counts up to 30 and reports NO instrument found...
Sent from my T-Mobile 5G Device
Get
toggle quoted message
Show quoted text
Hi? Gene
?
Welcome to the 70 K equipment ??at $100 you are not going to lose any money
Ok you have all the parts to make it work? your first job is to find out if the 70900 is working? as this is the Hart of the system
I do not have one of your displays? but with just the display and the 70900 you should be able to interrogate the 70900 for its software date
You also need the record any errors ?then you can start sorting things out?
?
One warning? the rack has 2 fans in the base? best suggestion is to remove all units? and make Shure both are working as excessive heat can kill the 70900
?
There are about 150 documents on the 70000 site ?the one that is not there and you might find helpful is the sylph paced tutorial this can be got from Artek
at $10
?
You will also have to check out all the cables on the rear and be careful hear
?
?
Regards Paul
?
?
?
I'm new to the HP 70K system and just started on the learning process to decide whether to salvage parts or restore what I believe is? a true piece of great American engineering and implementation. When I first saw this up for bid on
a government bid site it was listed as a spectrum analyzer. That got my interest and less than $100 later I hauled it home and applied liniment to some sore muscles. The modules in this build are...
After pulling the modules and giving a quick look and smell test, I found nothing that cautioned against applying power. Wow, it fired up, well kind of. On cold start I got this start screen...
Reading further in groups, I replaced the 2 lithium? batteries using these leaded ones. Cutting leads where needed makes more sense than soldering.
Restarted and got the notice 6003? that occurs with new battery installs...tried the "press DSP then? SELECT INSTR" and got this...
"No module present" is displayed after a scan with "Column" advancing through to 30...hmmm?
When I look at the address map I do not see the 70900a L.O. module listed...the IF, RF sections and 70205A shown,
That's where am at and rather then go forward blindly anew, I thought asking questions to the more knowledgeable would make big time sense. I have/am using manual Part Number 70900-90116 that I just converted to text searchable and have just started diving
in.?
1. Should the 70900A show in the A-Map or is some initialization/assignments in order for the 70900A to be recognized?
2. I don't intend on attaching a PC to this frame, is it reasonable to expect any use in this configuration? if not, see next question
3. I stash and harvest parts for my own design work. Does this make more sense without aux PC?
BTW I have a fairly large stash of NOS Tek/HP parts that I'm willing to help others with
Pre-Thanks for any help
|
Re: Removing the Adhesive From Hell
On Wed, Nov 17, 2021, 4:54 PM Oz-in-DFW < lists@...> wrote: Turtle Wax bug and tar remover is a miracle cure for most old masking tape, labels, and almost all plastic tape adhesive.? What it will not do is dissolve the tape itself.? You need to peel enough for the remover to wick under the plastic of the tape.? Most auto parts places and stores with auto care sections (like WalMart) have it in stock. Or at the 'zon here:
Oz
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Re: I'm old 70+, the 70K system is old; good or bad omen?
Hi? Gene ? Welcome to the 70 K equipment ??at $100 you are not going to lose any money Ok you have all the parts to make it work? your first job is to find out if the 70900 is working? as this is the Hart of the system I do not have one of your displays? but with just the display and the 70900 you should be able to interrogate the 70900 for its software date You also need the record any errors ?then you can start sorting things out? ? One warning? the rack has 2 fans in the base? best suggestion is to remove all units? and make Shure both are working as excessive heat can kill the 70900 ? There are about 150 documents on the 70000 site ?the one that is not there and you might find helpful is the sylph paced tutorial this can be got from Artek at $10 ? You will also have to check out all the cables on the rear and be careful hear ? ? Regards Paul ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Gene Silvernail
Sent: 20 November 2021 22:33
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] I'm old 70+, the 70K system is old; good or bad omen?? I'm new to the HP 70K system and just started on the learning process to decide whether to salvage parts or restore what I believe is? a true piece of great American engineering and implementation. When I first saw this up for bid on a government bid site it was listed as a spectrum analyzer. That got my interest and less than $100 later I hauled it home and applied liniment to some sore muscles. The modules in this build are...
After pulling the modules and giving a quick look and smell test, I found nothing that cautioned against applying power. Wow, it fired up, well kind of. On cold start I got this start screen...
Reading further in groups, I replaced the 2 lithium? batteries using these leaded ones. Cutting leads where needed makes more sense than soldering.
Restarted and got the notice 6003? that occurs with new battery installs...tried the "press DSP then? SELECT INSTR" and got this...
"No module present" is displayed after a scan with "Column" advancing through to 30...hmmm?
When I look at the address map I do not see the 70900a L.O. module listed...the IF, RF sections and 70205A shown,
That's where am at and rather then go forward blindly anew, I thought asking questions to the more knowledgeable would make big time sense. I have/am using manual Part Number 70900-90116 that I just converted to text searchable and have just started diving in.?
1. Should the 70900A show in the A-Map or is some initialization/assignments in order for the 70900A to be recognized?
2. I don't intend on attaching a PC to this frame, is it reasonable to expect any use in this configuration? if not, see next question
3. I stash and harvest parts for my own design work. Does this make more sense without aux PC?
BTW I have a fairly large stash of NOS Tek/HP parts that I'm willing to help others with
Pre-Thanks for any help
|
I'm old 70+, the 70K system is old; good or bad omen?
I'm new to the HP 70K system and just started on the learning process to decide whether to salvage parts or restore what I believe is? a true piece of great American engineering and implementation. When I first saw this up for bid on a government bid site it was listed as a spectrum analyzer. That got my interest and less than $100 later I hauled it home and applied liniment to some sore muscles. The modules in this build are...  After pulling the modules and giving a quick look and smell test, I found nothing that cautioned against applying power. Wow, it fired up, well kind of. On cold start I got this start screen...  Reading further in groups, I replaced the 2 lithium? batteries using these leaded ones. Cutting leads where needed makes more sense than soldering.  Restarted and got the notice 6003? that occurs with new battery installs...tried the "press DSP then? SELECT INSTR" and got this...  "No module present" is displayed after a scan with "Column" advancing through to 30...hmmm? When I look at the address map I do not see the 70900a L.O. module listed...the IF, RF sections and 70205A shown, That's where am at and rather then go forward blindly anew, I thought asking questions to the more knowledgeable would make big time sense. I have/am using manual Part Number 70900-90116 that I just converted to text searchable and have just started diving in.? 1. Should the 70900A show in the A-Map or is some initialization/assignments in order for the 70900A to be recognized? 2. I don't intend on attaching a PC to this frame, is it reasonable to expect any use in this configuration? if not, see next question 3. I stash and harvest parts for my own design work. Does this make more sense without aux PC? BTW I have a fairly large stash of NOS Tek/HP parts that I'm willing to help others with Pre-Thanks for any help
|
Re: Placing Shelf on Casters for HP Equipment
Hi:
I have a couple of HP 19" racks that are mounted on a platform that in turn has castors.? The key thing is that the platform sticks out in front of the racks.? That way if slides are used to pull something forward the whole rack does not tip over.
--
Have Fun,
Brooke Clarke
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.
|
Re: 5065A rubidium frequency standard, no 2nd harmonic.
It is almost impossible to adjust the 5 MHz crystal frequency unless the device is locked and you are watching the control voltage. I had the same problem with an HP Cesium standard.
I would suggest you start with GPS based standard and an oscilloscope to get the 5 MHz close enough to lock.
As pointed out before, be sure the RF drive frequency and power to the cell are correct.
You might also ask the guys from "Time Nuts" group for help.
Cheers!
Bruce
Quoting "Jared Cabot via groups.io" <jaredcabot@...>:
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Hmm, all the transistors in my A3 assembly test ok, but although I turn the OCXO coarse and fine adjustments, the 5MHz outputs on the front and rear panels don't seem to change..
|
Re: 5065A rubidium frequency standard, no 2nd harmonic.
Jared what is the reference you are comparing to? Also when adjusting the frequency what is the readout of the oscillator? Regards Paul.
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Re: Query about 40 GHz sig gens
hi jfphp,
Any chance, when able, to get some photos of inside? of the Z40 Option box for the 704340a ?
And block diagrams, or docs ?
I's like to replicate that.
thank you,
rick
|
Re: HP8648b corrupted firmware
Wonderful! thanks a million ! yep I'm aware of that as I started reverse engineering my firmware with Ghidra and wrote a little python script to exactly that :-)
|
Re: 5065A rubidium frequency standard, no 2nd harmonic.
Hmm, all the transistors in my A3 assembly test ok, but although I turn the OCXO coarse and fine adjustments, the 5MHz outputs on the front and rear panels don't seem to change..
|
Re: Placing Shelf on Casters for HP Equipment
Matt; for your in-out application, avoid SWIVEL casters as they will require a lot of horizontal force to get them to reverse direction, and when they finally swivel the unit could get tippy.
Also look at using? "Appliance Casters" or maybe adapting machine-tool mobile bases:??
I'm using these low profile appliance casters under several adjacent 19" racks pushed up against a wall:??
They work great on hard floors, and nylon wheels can easily 'skid' sideways to align direction of travel.
John
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Re: Query about 40 GHz sig gens
There is a lot of strange and undocumented plug ins for the 70K : for example a Comstron (8 slot !) agile synthesyzer 10 Mhz 18 Ghz <1?s for any step anywhere ! Same situation for the TEK TM500 plug ins : rubidium oscillator, pulse generators, comb generator...
On Thursday, November 18, 2021, 09:59:46 PM GMT+1, Paul Bicknell <admin@...> wrote:
Hi all ? Interested to see you talking about? the HP 70000 equipment and the Z40 option and that their dues not seem to be any documentation for it ? We are indeed still missing a number of documents for the 70 K equipment could either of you just clear up a point Am I correct that the spectrum analyser system for 40 Ghz was the 71209 that comprised of a 70910 analyser with an extra socket on the back that connected to the Z40 module that was basically a down converter with a 2.4 MM connecter ? ? The only reference I can find is in the MMS Catalogue Pages 62-64 & Pages 157 - 158 ? You also talk about ?? Can you elaborate more on the Z40 Option of the HP 70340a ? did this ever exist ?? ? Best Regards Paul ? ?
From: [email protected] [mailto:[email protected]] On Behalf Of green
Sent: 18 November 2021 16:36
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Query about 40 GHz sig gens ? hi? jfphp,
Can you elaborate more on the Z40 Option of the HP 70340a ?
I have the non-Z40 version, and would like to know what the upgrade entails ?
-- Any .pdf Docs or photos? on the Z40 details ?
thank you,
rick
(I have the Z40 option for the SA, that does nicely go up to 40GHz, but no docs on that Option either)
|
Re: Placing Shelf on Casters for HP Equipment
I have three on my computer desk. Two mounted underneath, and one standing on end. I'm planning to build a 12V UPS, with multiple outputs to replace almost a dozen wall warts. I may include some 9 volt outputs, and USB power ports. as well.
I have 3 attached to the back of my bench.? No issues in the ~3 years I've had them.? BTW, I put masking tape labels on the plug ends of the power cords so I know what plug goes to what instrument.? ?HTH.? ? ? ? ?Jim Ford?
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message -------- Date: 11/19/21 6:45 AM (GMT-08:00) Subject: Re: [HP-Agilent-Keysight-equipment] Placing Shelf on Casters for HP Equipment
Have you seen these four foot, 12 outlet strips for $20? I have about a half dozen.? A couple failed when I lost the netral on my electric service, and the line voltage went up past 160 VAC on a 120VAC line. It fried the MOVs, and tripped a circuit breaker, which is how it was supposed to work. The other side of the line dropped to 60 VAC but my old Dell Optiplex 780 and Insignia video monitor kept working.
After I sent that message I found these Tripp Lite rails
(),
which seem to be exactly what I was looking for. Anyone have experience
with these, or with Tripp Lite in general?
Matt
|
Re: HP8648b corrupted firmware
I uploaded the firmware archive to the 8648 folder.
Keep in mind that the module has 16-bit data bus and you must mix U1 with U3 and U2 with U4 if you want to search something inside.
|
Re: HP8648b corrupted firmware
yup you're right. If things go bad we'll be both looking for a firmware...
|
Re: HP8648b corrupted firmware
In this case it didn't solve the issue.
?When the NMV becomes corrupted the firmware reloads the default configuration into it and you're done.
But in my case the ROM checksum is wrong indicating an EPROM 'bit rot'. I disassembled the firmware using Ghidra and still working on this
|
Re: 5065A rubidium frequency standard, no 2nd harmonic.
Check the crystal frequency - if it has drifted too far, the frequency will not be "scanned" through the cells resonance.
Cheers!
Bruce
Quoting "Jared Cabot via groups.io" <jaredcabot@...>:
toggle quoted message
Show quoted text
Hi all,
I have a 5065A Rubidium Standard that was working ok, but has lost the 2nd harmonic.
My voltages are all ok, the physics package hasn't overheated and I have replaced the usual resistors on the lamp assembly (and it was running fine afterward for a while), the lamp illuminates, and I've done the procedure to remove cell flooding.
All readings on the 'circuit check' switch are nominal, apart from the 2nd harmonic position. No matter what I do, I can no longer get it to raise above 0.
However, when I first turn the unit on, the needle drops to 0 and flicks a little before settling on 0 and staying there.
Can someone help me get this unit up and running again?
Thanks!
Jared
|
Re: Query about 40 GHz sig gens
There is a lot of strange and undocumented plug ins for the 70K : for example a Comstron (8 slot !) agile synthesyzer 10 Mhz 18 Ghz <1?s for any step anywhere ! Same remark for the TEK TM500 plug ins : rubidium oscillator, pulse generators, comb generator...
On Friday, November 19, 2021, 05:07:52 PM GMT+1, jfphp via groups.io <jfphp@...> wrote:
1. 70340A option Z40 is a one slot module added to the normal 70340A with isolators, doubler, power amplifier, detector.. .It seems an assembly built with on the shelf lying components like an ETXXXX box
2. The 70909A option Z40 is in fact a 70909A coupled wit a 11974A preselected mixer with the necessary switching accessories. Performance are poor with a noise floor about 30 or 40 db above the "normal" noise floor of the 70909A. Nothing to do with the 8564X...
On Thursday, November 18, 2021, 09:59:46 PM GMT+1, Paul Bicknell <admin@...> wrote:
Hi all ? Interested to see you talking about? the HP 70000 equipment and the Z40 option and that their dues not seem to be any documentation for it ? We are indeed still missing a number of documents for the 70 K equipment could either of you just clear up a point Am I correct that the spectrum analyser system for 40 Ghz was the 71209 that comprised of a 70910 analyser with an extra socket on the back that connected to the Z40 module that was basically a down converter with a 2.4 MM connecter ? ? The only reference I can find is in the MMS Catalogue Pages 62-64 & Pages 157 - 158 ? You also talk about ?? Can you elaborate more on the Z40 Option of the HP 70340a ? did this ever exist ?? ? Best Regards Paul ? ?
From: [email protected] [mailto:[email protected]] On Behalf Of green
Sent: 18 November 2021 16:36
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Query about 40 GHz sig gens ? hi? jfphp,
Can you elaborate more on the Z40 Option of the HP 70340a ?
I have the non-Z40 version, and would like to know what the upgrade entails ?
-- Any .pdf Docs or photos? on the Z40 details ?
thank you,
rick
(I have the Z40 option for the SA, that does nicely go up to 40GHz, but no docs on that Option either)
|
Re: Query about 40 GHz sig gens
1. 70340A option Z40 is a one slot module added to the normal 70340A with isolators, doubler, power amplifier, detector.. .It seems an assembly built with on the shelf lying components like an ETXXXX box
2. The 70909A option Z40 is in fact a 70909A coupled wit a 11974A preselected mixer with the necessary switching accessories. Performance are poor with a noise floor about 30 or 40 db above the "normal" noise floor of the 70909A. Nothing to do with the 8564X...
On Thursday, November 18, 2021, 09:59:46 PM GMT+1, Paul Bicknell <admin@...> wrote:
Hi all ? Interested to see you talking about? the HP 70000 equipment and the Z40 option and that their dues not seem to be any documentation for it ? We are indeed still missing a number of documents for the 70 K equipment could either of you just clear up a point Am I correct that the spectrum analyser system for 40 Ghz was the 71209 that comprised of a 70910 analyser with an extra socket on the back that connected to the Z40 module that was basically a down converter with a 2.4 MM connecter ? ? The only reference I can find is in the MMS Catalogue Pages 62-64 & Pages 157 - 158 ? You also talk about ?? Can you elaborate more on the Z40 Option of the HP 70340a ? did this ever exist ?? ? Best Regards Paul ? ?
From: [email protected] [mailto:[email protected]] On Behalf Of green
Sent: 18 November 2021 16:36
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Query about 40 GHz sig gens ? hi? jfphp,
Can you elaborate more on the Z40 Option of the HP 70340a ?
I have the non-Z40 version, and would like to know what the upgrade entails ?
-- Any .pdf Docs or photos? on the Z40 details ?
thank you,
rick
(I have the Z40 option for the SA, that does nicely go up to 40GHz, but no docs on that Option either)
|
Paul Bicknell
Jared Cabot
Michael A. Terrell
