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  1. HP-Agilent-Keysight-Equipment
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Date
Re: Agilent/Keysigh ESG series CLIP

 

No, not me....


On Thu, 20 Mar 2025, 12:39 Leo Bodnar via , <leo=[email protected]> wrote:
Hi Milan,
I have bought mine in 2018 from a random eBay dude with account called "Jimt4".
Was that you? If not, I assume am free to pass them on.
Leo
5041-8820 Rear Strap Handle Cap — 3D print files?

 

Does anybody have a 3D model of Agilent 5041-8820 Rear Strap Handle Cap?
Mine has shattered and I'd like to replace it. I have the metal insert so only need plastic outside piece.
Cheers
Leo
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Re: Agilent/Keysigh ESG series CLIP

 

Hi Milan,
I have bought mine in 2018 from a random eBay dude with account called "Jimt4".
Was that you? If not, I assume am free to pass them on.
Leo
Re: looking for service manual for HP4934A

 

I took a look in my fiche documentation - I do not have anything for the 4934A.
?
If you look here in the first pdf (ending 01) -
?
?
You can see a list of op and service documentation published by HP up to November 1985.?
There does not seem to be an entry for the 4934A so it may be covered in another service manual
?
Peter
Re: Agilent/Keysigh ESG series CLIP

 

I see your point!?
I was in possession?for like 10 years of the original schematics from CAD (so no scan and bad quality this time) of the tektronix TDS540 scope that I received directly?from tektronix?after asking gently.
I never shared it until the official version was published exactly?for the same reason as you!
Now the published version is available?so I should upload them somewhere, I don't really know because I was told to not share them too If I recall correctly.


Il giorno gio 20 mar 2025 alle ore 09:59 Milan Vasic via <vasa1958=[email protected]> ha scritto:
Hello everyone,
Everyone who purchased the clip E4400-90336 from me (CLIP content attached) was kindly asked to use it for their own private use and not distribute it...which is why I archived it to wait for better days.
Milan

Virus-free.

On Tue, Mar 18, 2025 at 2:12?PM Santiago Z via <santiago.zygadlo=[email protected]> wrote:
Hello Xu

I have an E4422B with an issue on the A9 output board.
I’m interested in the CLIP document you mentioned. Please let me know the price, I’d appreciate it.
I tried contacting Milan, but I didn’t get a response.

Thanks
Santiago



--

Alberto Vaudagna
Re: Agilent/Keysigh ESG series CLIP

  

Hello everyone,
Everyone who purchased the clip E4400-90336 from me (CLIP content attached) was kindly asked to use it for their own private use and not distribute it...which is why I archived it to wait for better days.
Milan

Virus-free.


On Tue, Mar 18, 2025 at 2:12?PM Santiago Z via <santiago.zygadlo=[email protected]> wrote:
Hello Xu

I have an E4422B with an issue on the A9 output board.
I’m interested in the CLIP document you mentioned. Please let me know the price, I’d appreciate it.
I tried contacting Milan, but I didn’t get a response.

Thanks
Santiago

ESG CLIP E4400-90336Table of Content.pdf
ESG CLIP E4400-90336Table of Content.pdf

Re: E5071C powering down

 

Hi Sven,
you have to place a new CR2032 on the mainboard, then do a CMOS default and set the correct date/time.

Normally, after that all should be OK. I had the same issue on mine, fixed it that way.

regards,
Jean-Luc


----- Mail original -----
De: "Sven Schnelle" <svens@...>
?: [email protected]
Envoyé: Mercredi 19 Mars 2025 17:34:35
Objet: [HP-Agilent-Keysight-equipment] E5071C powering down

Hi,

bought a E5071C 4-port 8.5GHz VNA. Seller stated that the device does
not power up. Arriving home I connected it to power switched it on - it
turns on, Fans blowing for 3-4 seconds, no other signs of life,
everything switching off.

Noticed that if i remove the CMOS battery from the Mainboard (a Radisys
Endura LS855 with Agilent patched BIOS), the Analyzer is starting up. It
boots Windows XP just fine and the VNA is working. (Luckily the RF ports
all seem to work).

When shutting down it won't shut down entirely, black screen, and the
Fans are still blowing. With the next power cycle i have the problem
stated above again, until i remove the CMOS battery again.

That even happens without booting Windows XP. So it seems like the BIOS
is loading some invalid values into the CMOS RAM.

The service guide from Keysight says it should be sent in to replace the
CMOS battery, but that's very expensive for a hobbyist.

Does anyone know how to get the proper CMOS data restored? I see there's
a bioscheck.exe binary in the E5071C folder, but executing that doesn't
change anything.

Thanks
Sven
Re: Keysight 23522a Binary Arb Files

 

Hey Yves,
Thanks for your answer, but this was the source i mentioned. I found it before, and it works, but you can See a lot of question marks in the structure. I try to find a description of all values in the header.
TomS
Re: A homemade diode power sensor for HP meters

 

auto zero function explained on page 15 of the 8481A service manual.
Re: looking for service manual for HP4934A

 

开云体育

Have pdf of op/service for the 4935A if that’s any use.

Dave, ZL3FJ

?

From: [email protected] [mailto:[email protected]] On Behalf Of w7fdd via groups.io
Sent: Thursday, March 20, 2025 11:55
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] looking for service manual for HP4934A

?

Hello,

Any one have a service manual for a HP 4934A?

An electronic copy?

Any good ideas where to find either a paper or electronic copy?

It is for a TIMS. Transmission impairment measuring set.

?

thank you for any help

?

Brian
looking for service manual for HP4934A

 

Hello,
Any one have a service manual for a HP 4934A?
An electronic copy?
Any good ideas where to find either a paper or electronic copy?
It is for a TIMS. Transmission impairment measuring set.
?
thank you for any help
?
Brian
Re: OPT 003 (48-440 Hz compatible) fan (full size "Muffin" type fan) - replacement requirements?

 

Unless you plan to operate on 400 Hz AC current, you don’t need a 400 Hz fan. Depending on the instrument, you may be able to get by with a lower-power (quieter fan). HP typically spec’d their stuff to 50C; in a laboratory environment, the temperature should be considerably cooler.?

Jeremy?



On Wed, Mar 19, 2025 at 1:43?PM David Feldman via <wb0gaz=[email protected]> wrote:
Have a failing/failed cooling fan from a HP machine with OPT 003 (400 Hz), which appears to apply to the type of fan installed.

Are there any requirements (trying remember undergraduate EE class that described analysis of induction motors - does that describe a typical cooling fan of this sort? - but that is digging waaaaaaaaaaaaaaaaay back to the 70s... Should a generic 120 VAC 60 Hz fan of sufficient air flow be acceptable, or do I need search for a fan designed to support 400 Hz?)
Re: HP 8673D synthesized generator - need help identifying the two PC boards attached to A1A11 power amplifier

 

Peter - yes - beast (trivia - back in about 1981 I was one of hundreds of volunteer extras (person-sized bird characters) for a movie being filmed north of Los Angeles called "the beastmaster" - never saw the movie!.)

A recently purchased (earlier this week) VEVOR TFD15 hydraulic lift table has made 1000% improvement in handling these heavy/old machines (8660, 8350, 8673) which use linear/transformer power supplies and are made of 100% pure cast iron straight from the mine. Highly recommend such a thing for those of us "of a certain age" that still wrangle electronics by the metric ton.

Determined course of action at this point --- going to build extender mechanism to allow the pictured module to operate outside the synthesizer. 6x2 3.94mm card edge connector, already have PCBs with 3.94mm pitch traces for making these sorts of things, and 14-pin IDC DIP male plugs to make the 2-port ribbon cable that appears to go off in the direction of the YTO, are both on order, couple weeks til delivery, so machine is back to it's "hangar queen" location until I am ready for testing.

Barring any other adds to this discussion, I'll surface again with the topic once I am able operate the module(s) outside the synthesizer chassis.
OPT 003 (48-440 Hz compatible) fan (full size "Muffin" type fan) - replacement requirements?

 

Have a failing/failed cooling fan from a HP machine with OPT 003 (400 Hz), which appears to apply to the type of fan installed.

Are there any requirements (trying remember undergraduate EE class that described analysis of induction motors - does that describe a typical cooling fan of this sort? - but that is digging waaaaaaaaaaaaaaaaay back to the 70s... Should a generic 120 VAC 60 Hz fan of sufficient air flow be acceptable, or do I need search for a fan designed to support 400 Hz?)
Re: Threads for screws on 8656 Siggen

 

开云体育

UNOFFICIAL


I have never encountered 3.5 mm in anything, and yes I have seen them on Amazon and AliExpress, but never at hardware shops, electronics parts suppliers ( similar to radio shack) or even major parts suppliers. Maybe there is little demand here or I have just been looking in the wrong places. Lets hope it is the 6-32 hardware, which is apparently what the manual says, but I misinterpreted as 5/32.

This has been a learning experience for me with regards to imperial sizes as well as metric.

On my laptop screen, I read this as 5/32. At the time my eyesight was still severely impacted from a 3rd nerve palsy and nothing was over clear. On a 27 inch monitor, blown up much clearer, plus this is from a more legible copy of the service manual.

?

?

Anyway thanks to all who have replied, I know have the information I need to hopefully complete this piece if test equipment . I was amazed? at how accurate the output levels and frequencies? were, when first powered dup after 20 years, as measured on my recently Acquired CMU200. Level within 0.5 dB, and that can be accounted for with cable losses, and the frequency, as close as I could measure, was spot on. Fantastic bit of gear

?

?

Wayne Eckert BEng

Observing Operations Hub Sydney

M:0409986684

T: 02 92961668

Unit 9 ?111 Moore Street

Leichhardt NSW 2040

wayne.eckert@... |

?

?


UNOFFICIAL

From: [email protected] <[email protected]> On Behalf Of Mark Moulding
Sent: Thursday, 20 March 2025 5:20 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Threads for screws on 8656 Siggen

?

In my own shop, I am, kicking and screaming, "inching" towards the metric system.? I have a rather complete and well-organized set of little drawers for my SAE hardware, but the metric stuff heretofore has been in a couple of drawers marked only with the diameter; all lengths, plus nuts, washers, etc. have been jumbled together.? (Better than in my lab, where there's just a drawer labeled "metric".)? So I'm doing one of my obsessive-compulsive sorting and labeling projects to create a new cabinet specifically for all the metric stuff.

?

The point of all this is that, in the US anyway, M3.5 isn't all that rare.? It's definitely less common than the integer sizes, but in my jumbled lot, captured from taking things apart and various small purchases, there is still quite a bit of M3.5 stuff.? I'm surprised that it would be so hard to source in an ostensibly metric country.? There's certainly plenty of M3.5 hardware to be found on Amazon.

~~
Mark
Re: Threads for screws on 8656 Siggen

 

In my own shop, I am, kicking and screaming, "inching" towards the metric system.? I have a rather complete and well-organized set of little drawers for my SAE hardware, but the metric stuff heretofore has been in a couple of drawers marked only with the diameter; all lengths, plus nuts, washers, etc. have been jumbled together.? (Better than in my lab, where there's just a drawer labeled "metric".)? So I'm doing one of my obsessive-compulsive sorting and labeling projects to create a new cabinet specifically for all the metric stuff.
?
The point of all this is that, in the US anyway, M3.5 isn't all that rare.? It's definitely less common than the integer sizes, but in my jumbled lot, captured from taking things apart and various small purchases, there is still quite a bit of M3.5 stuff.? I'm surprised that it would be so hard to source in an ostensibly metric country.? There's certainly plenty of M3.5 hardware to be found on Amazon.
~~
Mark
E5071C powering down

 

Hi,

bought a E5071C 4-port 8.5GHz VNA. Seller stated that the device does
not power up. Arriving home I connected it to power switched it on - it
turns on, Fans blowing for 3-4 seconds, no other signs of life,
everything switching off.

Noticed that if i remove the CMOS battery from the Mainboard (a Radisys
Endura LS855 with Agilent patched BIOS), the Analyzer is starting up. It
boots Windows XP just fine and the VNA is working. (Luckily the RF ports
all seem to work).

When shutting down it won't shut down entirely, black screen, and the
Fans are still blowing. With the next power cycle i have the problem
stated above again, until i remove the CMOS battery again.

That even happens without booting Windows XP. So it seems like the BIOS
is loading some invalid values into the CMOS RAM.

The service guide from Keysight says it should be sent in to replace the
CMOS battery, but that's very expensive for a hobbyist.

Does anyone know how to get the proper CMOS data restored? I see there's
a bioscheck.exe binary in the E5071C folder, but executing that doesn't
change anything.

Thanks
Sven
HP Series 200/300 and Plotter Manuals

 

HP series 200/300 and Plotter Manuals

?

PM direct for offer…

?

7470A Plotter, Statistics, Graphic Presentation, Project Management, Basic 4.0… Interface Techniques, Utilities, Waveform Analysis, Graphic Techniques, Asynchronous Terminal Emulator

?

Thanks, Alan
File /All HP, Agilent and Keysight instruments in folders by part numbers/3000 to 3999/33xx Level detectors and synthesizer level generators/3336 A-B-C Section VIII - Service.pdf uploaded #file-notice

Group Notification
 

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

By: Harold Foster <halfoster@...>

Description:
Combined schematics and diagrams for the "Section VIII - Service" portion of the 3336A-900000 manual
Re: E5052A Power On Test (3.3V Bus Supply)

 

I also designed a 10 MHz LC resonator version with the aim to run the resonator at fairly high power. I've a fair bit of experience designing discrete low noise gain blocks so I replaced the noisy MMIC with a discrete BJT design and the first attempt is as below.
?
I think I can improve on this by several dB by reconfiguring the output network of the gain block (to allow higher power) and also I think I can improve on the resonator if I order some better parts for the resonator. It currently manages -165dBc/Hz at 10 kHz offset but I think the next version will be better than this.
There's a lot of spurious signals below about 500 Hz and this is due to pickup in my workroom from nearby equipment. I'll try and do something about this. I don't think it is getting in via the DC power feed.
The noise floor is very lumpy once it gets below -180dBc/Hz on the E5052A and again, I'm probably exploring the limits of the E5052A again here.
?
This is an LC oscillator not a crystal oscillator so the close in phase noise is relatively poor. I'm not that interested in achieving low phase noise below about a 1kHz offset but I can probably experiment with the gain block to minimise flicker noise.
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