Re: Tool to remove "fancy" BNC nut (0590-1251)
I've always used an adjustable wrench with pristine jaws and a sheet of paper cut out to not mar the front panel, then press down so the wrench doesn't slip up the rounded edges.? It's always worked for me as these nuts tend to never be torqued down much.
A 9/16" should work as the nut measures 0.5625" but sockets tend to have their own beveled edges so you would need to modify a socket by grinding it down on a belt sander beyond the bevel in order to get a good grip.? You MUST use a hex rather than 12 point socket!? Use the piece of paper regardless to avoid panel marks.
Peter
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On 4/13/2025 11:03 AM, vk2bea via groups.io wrote: Does anyone have a tip to remove the BNC nut described in the manual as a "fancy" BNC nut? HP part ?(0590-1251)
This is on the front panel of the HP5334B counter and I want to be careful not to mar the surface.
None of the sockets I have seen to fit. I thought a 9/16" would work but it doesn't.
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Re: Tool to remove "fancy" BNC nut (0590-1251)
On 2025-04-13 11:03 AM, vk2bea via groups.io wrote: Does anyone have a tip to remove the BNC nut described in the manual as a "fancy" BNC nut? HP part ?(0590-1251)
This is on the front panel of the HP5334B counter and I want to be careful not to mar the surface.
None of the sockets I have seen to fit. I thought a 9/16" would work but it doesn't. A 14mm or 15mm socket, perhaps? Steve Hendrix
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Tool to remove "fancy" BNC nut (0590-1251)
Does anyone have a tip to remove the BNC nut described in the manual as a "fancy" BNC nut? HP part ?(0590-1251)
This is on the front panel of the HP5334B counter and I want to be careful not to mar the surface.
None of the sockets I have seen to fit. I thought a 9/16" would work but it doesn't.
?
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Re: HP 3456A repair/restore
I just purchased the Artek manual(s), which I assume (99.99% certain...) have the missing TOC pages. In good part just for supporting them.... Hopefully they get delivered to me expeditiously.?
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Hi all,
I recently got a 3456A with a missing power button/knob (some of you may have seen my attempts to source a replacement, still not conclusive), and getting some bench space I thought I'd pull it from the shelf and testing it in a bit more depth.
?
One other issue I'm seeing is with the keyboard (which, from some preliminary research here and elsewhere, may be using the "Bill West Switch" design), which works, but the actuation feel is not very firm or "clicky" (which I can live with), but (which I can't live with), pressing a button returns a long chain of actuations - meaning that if I press "6" to enable to 6.5 digit mode, I get "666666" on the screen. Trying to get into 100 NPC mode is a Zen exercise (or maybe, better put, karate... I need to make my pressing .001s long to get just a "1"). I assume this is purely mechanical (needing maybe some cleaning of the keyboard contacts?...).?
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For some reason, the Keysight provided Operating and Service Manual is missing the Section 4 and further in its TOC (can anyone provide the missing pages, please?), which seems to be the case for other sources (though I haven't yet looked into Artek), and so I'm sill perusing the manual to find directions for accessing the keyboard for servicing. But regardless, I wonder if this is a common issue and if some good pointers are available from those having been through this issue. A search in the archives for 3456A doesn't return much, though I think I need to dig deeper for the "Bill West Switch" posts which seem to be plentiful.
?
Thank you in advance for all input!
Radu.?
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Re: Power Sensor Calibration Labels
That's a label HP (Bad Homburg, Garmany) printed in the 70s but I don't remember how.
As far as I can remember they used a HP printer.
Am 13.04.2025 um 13:44 schrieb Razvan Popescu via groups.io:
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I already checked the Brother printers and labels. I already have 4
Brother printers including 2 P-touch but these are for small labels. I
see my P-touch can only print max 18mm wide. I also have a QL-570 model
but I cannot find any laminated labels for it. All these printers are
thermal type printers.
If someone knows how the HP printed their labels for the power sensors
after calibration it would be very interesting.
On 13/04/2025 15:31, Adrian Godwin via groups.io wrote:
I don't know those labels but I believe Brother P-touch laminate the
labels. The actual process is some sort of sublimation so the finished
label is not subject to thermal damage. It seems unlikely, given the
history that these would be the actual labels used but you may be able
to reproduce them this way. You'd need a label printer capable of
bitmapped image reproduction rather than one with a fixed font.
_._,_._,_
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Re: Power Sensor Calibration Labels
I already checked the Brother printers and labels. I already have 4
Brother printers including 2 P-touch but these are for small labels. I
see my P-touch can only print max 18mm wide. I also have a QL-570 model
but I cannot find any laminated labels for it. All these printers are
thermal type printers.
If someone knows how the HP printed their labels for the power sensors
after calibration it would be very interesting.
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On 13/04/2025 15:31, Adrian Godwin via groups.io wrote: I don't know those labels but I believe Brother P-touch laminate the
labels. The actual process is some sort of sublimation so the finished
label is not subject to thermal damage. It seems unlikely, given the
history that these would be the actual labels used but you may be able
to reproduce them this way. You'd need a label printer capable of
bitmapped image reproduction rather than one with a fixed font.
_._,_._,_
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Re: Power Sensor Calibration Labels
I don't know those labels but I believe Brother P-touch laminate the labels. The actual process is some sort of sublimation so the finished label is not subject to thermal damage. It seems unlikely, given the history that these would be the actual labels used but you may be able to reproduce them this way. You'd need a label printer capable of bitmapped image reproduction rather than one with a fixed font.
?
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Re: HP - a summary of what went wrong.
Discussion reminds of a book I read. Bill and Dave, How Hewlett and Packard built the World's greatest Company. by Michale S. Malone.
The book goes into a lot of the details discussed here and very well written.
Gary
WA2OMY
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Froggie the Gremlin via groups.io Sent: Sunday, April 13, 2025 6:48 AM To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] HP - a summary of what went wrong. Carly got ~ 400M $ golden parachute for destroying a pioneering US engineering andf electronics firm, started by Hewlett and Packard in a Silicon Valley garage. j
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Power Sensor Calibration Labels
Hello,
Does anyone know which label type/model was used for the power sensor
calibration table on the backside of the sensor?
I am trying to find some labels that are similar with those but without
any luck. I measured the label on the 8481A and it has around 55*27mm.
I am not sure how were those printed because they seem to be a laminated
type and the table seems to be printed on the inner layer. Doesn't look
like they were printed on a standard laser printer. Are those thermal
labels?
Thanks,
Razvan
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Re: HP - a summary of what went wrong.
Carly got ~ 400M $ golden parachute for destroying a pioneering US engineering andf electronics firm, started by Hewlett and Packard in a Silicon Valley garage.
j
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Re: Keysight 33522a Binary Arb Files
Hey Yves,
First of all let me say thank you for your efforts in creating the files. All known Parameters are found in your barb files. It's Interesting,
that the values I know, are used, Like min max voltage, Sample rate, num channels, file Version, Datapoints.... Unknown values coded as zero or as default values are also found in your files. I can see that the ASCII version have more parameters and I assume that these values should have coresponding values in the barb file structure.
?
It could help having barb files with
- identical settings except of the different Filter types
- identical settings except of the trigger points
and so on. I do only need the barb File as output.
I don't know your Software, therefore l don't know which values you can set. At least all adjustable parameters are highly welcome in order to see how they are coded in the barb structure.
It's just a question, would you be willing?
to create some more barb files with much as possible Parameters? One basic file and the same file, with one? active Parameter?
?
Thanks in advance
TomS
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Re: HP - a summary of what went wrong.
I was present at a speech Princess Fiorina gave to some troops. It was one of the things that helped me to decide to leave. Bill and Dave made simple statements that enabled everybody to help steer in the desired direction. Fiorina beautifully delivered obscure MBA speak that left people mystified and asking each other what it meant.
Fiorina was indeed atrocious, however...?
For several years the zeitgeist (originating in the board and diffusing downwards) was that a "50:50" company was desirable. That was shorthand for $50e9 annual turnover and 50e3 employees, presumably derived from some dubious MBA calculations. It implied employee layoffs and/or company split. It also implied focussing on the medium term. Consequently HPLabs fell out of favour, with statements being "why should we pay so much when we could simply use that money to buy a small company with a successful product".?
Consequently HPLabs was forced to gamble on a small number of high-risk high-payoff concepts (e.g. conpletely new classes of computer concepts centred on memristors), and inevitably failed.
After ousting Fiorina, the board implemented the "buy small successful company several times", and my, didn't that turn out well (for lawyers, that is).
Fiorina's record at HP was sufficient for her to convince herself to run for president. She got nowhere, I presume because too many people quietly discussed how she had behaved and her lack of success. Times change, but that's not a subject for here.
Carly Fiorina (where is she now?) did exactly what the Board of Directors TOLD her to do...no more-no less.
On Saturday, April 12, 2025 at 04:53:35 PM PDT, RFI-EMI-GUY < rhyolite@...> wrote:
Two words: Carly Fiorina. Lets not forget her, a TERRIBLE CEO! I had stock in the HP company which was at the time a Test and Measurement company that served many industries. It was a well known and respected company. The HP computers and printers were solely to support automation of the T&M market. They made superb products. The introduction of Compaq was sort of a dilution of the product reputation. The spinoffs ruined the company value and upset the product market. I lost a ton of money on the HP stock and the spinoff. The stock value plummeted. It was a ripoff of shareholder equity.
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Re: HP - a summary of what went wrong.
I think you got that backwords. It was her deal (Compaq Acquisition)? , the BOD and HP family resisted it, and in the end the BOD ousted her.
?
On Sat, Apr 12, 2025 at 09:05 PM, jim wrote:
?
Carly Fiorina (where is she now?) did exactly what the Board of Directors TOLD her to do...no more-no less.
?
On Saturday, April 12, 2025 at 04:53:35 PM PDT, RFI-EMI-GUY <rhyolite@...> wrote:
?
?
On Sat, Apr 12, 2025 at 09:05 PM, jim wrote:
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Re: copy of the 8402A power meter calibrator manual?
Thanks for the
responses, guys. And the Artek manual is on order.? Don't know
when I'll get around to needing it, but like anything on the
internet, b est to buy things when they are available.
John??? KK6IL
On 4/11/2025 11:56 AM, factory via
groups.io wrote:
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ArtekManuals list a 8402A operating/service manual, part
number 08402-902
?
David
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Re: HP - a summary of what went wrong.
Carly Fiorina (where is she now?) did exactly what the Board of Directors TOLD her to do...no more-no less.
On Saturday, April 12, 2025 at 04:53:35 PM PDT, RFI-EMI-GUY <rhyolite@...> wrote:
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Re: HP - a summary of what went wrong.
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Re: HP - a summary of what went wrong.
Hi Don,
At first I thought you were referring to the years I was at HP (77-2002).? Things were fell apart on the instrument side at that time as well.??
I enjoyed working in the customer service center where it was a full repair and cal operation.? ?We could fix everything to the component level.? ? ?Rarely was a board replaced.??Then the instruments became assy level repair.? The 8753 was the first one that I recall but there were others like the 8920 etc.? ?Also fixed prices were established some where in there.? ? ? There was a fixed price for a repair, repair and cal and just cal and also a mini-repair price if the issue was very simple.? ? The cost of the assys were crazy.? ? Component level repair was no longer possible.? ?
Then the rep/cal facility became a cal only "hub".? ?If a repair was needed the instrument was shipped to Roseville, CA.? ? Also an on-site calibration service began.? ? The on-site cal work was too much like the stuff I hated to do in the air force were we traveled hours to get to a site and hours to get back to the base and 8 hours on the site.? Having to stay in a hotel away from home was not for me.? ? I hung on for a few more years in the power supply division.? ?After I left the power supply division,? the ex-repair / cal-only center was shut down and moved to PA and the entire facility was sold off.? The power supply div engineering / marketing dept moved somewhere close by and manufacturing was moved off-shore.? ?
Pete? ? ?
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Re: HP - a summary of what went wrong.
Hi Don:
In my mind the real HP is Agilent/Keysight.? The company called HP is the computer spin off.
--
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.
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HP - a summary of what went wrong.
Please check this link for a description of a breakdown of HP¡¯s process to destroying a great company.
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vk2bea
Froggie the Gremlin
RFI-EMI-GUY
jim