¿ªÔÆÌåÓý

Date

Re: HP Z3804A

 

On 9/10/22 08:39, Mike Feher wrote:
Well, Dave sadly I have not used mine either in a long time. I have a full lab loaded with HP and other gear just sitting there since I retired. At 77, I would like to find someone who would come here and make me an offer on all. Regards ¨C Mike
Wow. Don't stop living before you're dead, man.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


Re: HP Z3804A

 

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Well, Dave sadly I have not used mine either in a long time. I have a full lab loaded with HP and other gear just sitting there since I retired. At 77, I would like to find someone who would come here and make me an offer on all. Regards ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of Dave Seiter
Sent: Saturday, September 10, 2022 1:09 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

Ditto; I thought it sounded familiar, but a quick search proved me wrong.??

?

My Z3801 was the most expensive piece of T&M gear I ever bought, and it's still running too, but it only gets used occasionally now.

?

-Dave

?

On Friday, September 9, 2022 at 08:27:09 PM PDT, Mike Feher <n4fs@...> wrote:

?

?

I¡¯ve never heard of one either. I have several Z3801s and I think a Z3805. One of my 3801s has been running for about 20 years now continuously. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

,_


Re: Hp 8590a spectrum analyzer

Richard Cook
 

Here is my new cal data after cleaning the boards contacts. Looks almost perfect to me.?


Re: 3458A Schaffner Mains Filter

 

Hi Matt, have a look at the link for what is inside.
The potting compound takes a bit of work to get out.
Whether it is worth the effort depends on the availability of a replacement.
When my first filter failed, the replacement part had been on back order for months and I wanted to get the gear running again.

As for the caps, I used what I could get at the time.

ian


Re: OT WTK -Wanted to Know: Reliable sellers, and on-line lists.

 

Bonjour

Such old equipment is expensive to ship and easily damaged

Try local Craigslist, or Ham radio flea market ( listed on ARRL website)

A much better modern alternative is A USB VNA, most are cigaret pack size and have BNCs.

Try the equipment WTB, for sale on groups.io and EEVBLOG.

bon chance

Jon


Re: Agilent E8357A phase lock problems

 

I've seen phase lock errors when the receiver access loops were damaged or missing. Are all of the access loops in the front in good condition??

Another place I can think of would be the internal mechanical step attenuators. The o-rings on the attenuator pistons always deteriorate and can cause intermittent attenuator operation, and disruptions/breaks in those signal paths.?

Is your E8357A an option 015 (configurable test set) unit? If so, it will have an extra 2 attenuators going to the receivers. Either way, I would definitely check the internal step attenuators out of circuit to see if they are faulty.?

If your attenuators are indeed bad, I can rebuild them. I've done many HP/Agilent/KS step attenuators up to 50 GHz (the higher you go, the smaller the parts get!).?

You can attempt it yourself, but it is a very tedious operation not to damage any of the internal components. The attenuator needs to be completely broken down in order to replace the o-rings, which are not intended to be a service item by design.?


WTB: Agilent DSO 80000 display card - part no: 0960-2530 - used in many Agilent DSO scopes

 

Hi all,

Working on a few pieces of Agilent gear. One is a DSO81304B scope that I took a gamble on. Fortunately, it was not obliterated in overseas shipping and it seems to be almost fully functional.?

The principal issue it has is with the display. I believe the PCI-E based LVDS display card is dead. I attached a pic of the card for reference.

Here is a link to the part on the keysight website:
?. It appears to be out of stock since there is no "Add to cart" button as with other parts.?

The unit does not want to boot with this card installed. However, without this card it boots just fine and works with an external VGA monitor.

This card was used in a lot of DSO infiniium scopes. According to the KS website, the list is as follows:?

  • DSO80204B
  • DSO80304B
  • DSO80404B
  • DSO80604B
  • DSO8064A
  • DSO80804B
  • DSO81004B
  • DSO8104A
  • DSO81204B
  • DSO81304B
  • MSO8064A
  • MSO8104A
Would anyone happen to have this part laying around or in a parts unit? Or know where to acquire a replacement board?

Many thanks,
Kevin


Re: HP Z3804A

 

Ditto; I thought it sounded familiar, but a quick search proved me wrong.??

My Z3801 was the most expensive piece of T&M gear I ever bought, and it's still running too, but it only gets used occasionally now.

-Dave

On Friday, September 9, 2022 at 08:27:09 PM PDT, Mike Feher <n4fs@...> wrote:


I¡¯ve never heard of one either. I have several Z3801s and I think a Z3805. One of my 3801s has been running for about 20 years now continuously. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of n8zmTWH@...
Sent: Friday, September 9, 2022 11:03 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

It¡¯s the only one I know of.

?

Tom, N8ZM

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Friday, September 09, 2022 10:29 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

On Fri, Sep 9, 2022 at 05:15 PM, <n8zmTWH@...> wrote:

°¿³ú²¹²Ô¡­

?

Have you searched on the time-nuts list? Those folks will likely know what is available.

?

Tom, N8ZM

?

Hi Tom,
I searched the time-nuts list but only message I found was someone asking about Z3804 back in 2009 and there was no reply. I may join the list to ask. Is febo hosted one the most active?

Ozan


Re: HP Z3804A

 

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Hi

EEVblog mention it

https://www.eevblog.com/forum/testgear/prototype-hpagilent-gps-based-refererence-clocks-generator/msg905667/#msg905667

Hardy

?

Fra: [email protected] [mailto:[email protected]] P? vegne af Mike Feher
Sendt: 10. september 2022 06:16
Til: [email protected]
Emne: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

Never seen one before. Time nuts is still your best bet. TVB (Tom Van Baak) should know. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Saturday, September 10, 2022 12:01 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

I attached a picture of the front and inside. Does it look similar to Z3801 or Z3805?
Ozan




On Fri, Sep 9, 2022 at 08:27 PM, Mike Feher wrote:

I¡¯ve never heard of one either. I have several Z3801s and I think a Z3805. One of my 3801s has been running for about 20 years now continuously. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?


Virusfri.


Re: 3458A Schaffner Mains Filter

 

Usually, they come apart by drilling a rivet, and melting
the tar... Some are soldered together.

Tar = Messy job.

-Chuck Harris


On Fri, 09 Sep 2022 09:40:36 -0700 "Matt Huszagh"
<huszaghmatt@...> wrote:
"Carsten Bormann" <cabocabo@...> writes:

But if you need to replace them, getting a new line filter is a bit
less of a waste of time. If you try to repair the line filter:
Definitely do *not* get a replacement cap that is again a clear
blob of hard epoxy; these will fail the same way some 20, 30 years
from now. Best get one with a plastic cup and some more ductile
plastic filling covering the capacitor coil.
Kemet still sells metallized paper (MP) caps that appear to use the
same epoxy coating. Do we know that modern Schaffner filters have
opted for the film caps over the MP versions? Has anyone opened these
up?

Also, how simple is it to open up the line filter and just replace the
caps?

Matt





Re: HP Z3804A

 

¿ªÔÆÌåÓý

Never seen one before. Time nuts is still your best bet. TVB (Tom Van Baak) should know. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Saturday, September 10, 2022 12:01 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

I attached a picture of the front and inside. Does it look similar to Z3801 or Z3805?
Ozan




On Fri, Sep 9, 2022 at 08:27 PM, Mike Feher wrote:

I¡¯ve never heard of one either. I have several Z3801s and I think a Z3805. One of my 3801s has been running for about 20 years now continuously. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?


16702b scsi id problem

 

I just bought another Agilent 16702b.

The original SCSI drive has failed.? It was an IBM DPSS-309170 which is a 9GB Ultra160 68pin.?? ? There was an Agilent 16702-xxx part# sticker on the drive so I'm sure it was the original drive.?? It was set to SCSI ID 6 which seems to be the OEM value.

I'm trying to install onto a? replacement Fujitsu MXJ3367SC680600X which is a 36GB Ultra160 68pin.

I found it was necessary to install the "Force narrow:? 16 bit scsi" jumper (#7) on the Fujitsu? Odd verbiage as narrow is 8-bit.

More bizarrely the installer will only run if the drive is set to SCSI ID 0.????

If I set it to anything else (SEA in the BIOS shows I'm setting the correct ID) when the installer runs from CD I see "Scanning system for IO devices ... Querying disk device [id] reported a size of zero",?? Same as reported here:?

The drive seems to work perfectly.? I hooked it upto a PC with a Adaptec 2940UW controller and ran a block scan without issue (set to ID 6).

Anyone seen something similar?

Thanks

---

As an aside (in case it ever helps anyone else searching) when I did the install onto SCSI 0 I got a ton of errors of the form "Warning: utime of file: <path> failed.? Invalid argument (22)".? Sure enough the RTC on the board was showing 2088.? I reset it but next time it was showing the year 20135 ;-)? After taking half the machine apart I confirmed the 2325 lithium battery was reading 0.35V.????? Now I just need to wait for the replacement to arrive from Amazon, uncommon size.?? Hopefully this fixes the above issue.





?


Re: HP Z3804A

 

I attached a picture of the front and inside. Does it look similar to Z3801 or Z3805?
Ozan




On Fri, Sep 9, 2022 at 08:27 PM, Mike Feher wrote:

I¡¯ve never heard of one either. I have several Z3801s and I think a Z3805. One of my 3801s has been running for about 20 years now continuously. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of n8zmTWH@...
Sent: Friday, September 9, 2022 11:03 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

It¡¯s the only one I know of.

?

Tom, N8ZM

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Friday, September 09, 2022 10:29 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

On Fri, Sep 9, 2022 at 05:15 PM, <n8zmTWH@...> wrote:

°¿³ú²¹²Ô¡­

?

Have you searched on the time-nuts list? Those folks will likely know what is available.

?

Tom, N8ZM

?

Hi Tom,
I searched the time-nuts list but only message I found was someone asking about Z3804 back in 2009 and there was no reply. I may join the list to ask. Is febo hosted one the most active?

Ozan

?


Re: HP Z3804A

 

¿ªÔÆÌåÓý

I¡¯ve never heard of one either. I have several Z3801s and I think a Z3805. One of my 3801s has been running for about 20 years now continuously. 73 ¨C Mike

?

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

?

From: [email protected] <[email protected]> On Behalf Of n8zmTWH@...
Sent: Friday, September 9, 2022 11:03 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

It¡¯s the only one I know of.

?

Tom, N8ZM

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Friday, September 09, 2022 10:29 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

On Fri, Sep 9, 2022 at 05:15 PM, <n8zmTWH@...> wrote:

°¿³ú²¹²Ô¡­

?

Have you searched on the time-nuts list? Those folks will likely know what is available.

?

Tom, N8ZM

?

Hi Tom,
I searched the time-nuts list but only message I found was someone asking about Z3804 back in 2009 and there was no reply. I may join the list to ask. Is febo hosted one the most active?

Ozan


Re: HP Z3804A

 

¿ªÔÆÌåÓý

It¡¯s the only one I know of.

?

Tom, N8ZM

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Friday, September 09, 2022 10:29 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

On Fri, Sep 9, 2022 at 05:15 PM, <n8zmTWH@...> wrote:

°¿³ú²¹²Ô¡­

?

Have you searched on the time-nuts list? Those folks will likely know what is available.

?

Tom, N8ZM

?

Hi Tom,
I searched the time-nuts list but only message I found was someone asking about Z3804 back in 2009 and there was no reply. I may join the list to ask. Is febo hosted one the most active?

Ozan


Re: HP Z3804A

 

On Fri, Sep 9, 2022 at 05:15 PM, <n8zmTWH@...> wrote:

°¿³ú²¹²Ô¡­

?

Have you searched on the time-nuts list? Those folks will likely know what is available.

?

Tom, N8ZM

?

Hi Tom,
I searched the time-nuts list but only message I found was someone asking about Z3804 back in 2009 and there was no reply. I may join the list to ask. Is febo hosted one the most active?

Ozan


Re: HP Z3804A

 

¿ªÔÆÌåÓý

°¿³ú²¹²Ô¡­

?

Have you searched on the time-nuts list? Those folks will likely know what is available.

?

Tom, N8ZM

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Friday, September 09, 2022 4:57 PM
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] HP Z3804A

?

Does anyone have information about HP Z3804A "Oscillator and Distribution Amplifier". It seems to have a GPS receiver and multiple 10MHz outputs but searching on internet doesn't return any datasheets or manuals. Only information I found is this product line was sold (probably to Symmetricom).

Ozan


Re: HP 3580A Spectrum Analyzer - broken frequency display

 

Hi Marco,
That's good you've removed the bezel without damage.
Yes, the display part number is KCSC02-105, I can send you a PDF of the schematic and PCB, this also lists the display part number.
If you want to email me directly my address is peter@....

Regards,
Peter


Re: HP Z3804A

 

¿ªÔÆÌåÓý

Sorry,

?

I don¡¯t know the answer.

?

Ross

?

From: [email protected] <[email protected]> On Behalf Of Ozan
Sent: Friday, September 09, 2022 3:36 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP Z3804A

?

And looks like Symmetricom was bought by Microsemi.?

Is there a Symmetricom product number that is equivalent to HP Z3804A? Or any product that is close to HP Z3804A?

Ozan



On Fri, Sep 9, 2022 at 02:29 PM, si_emi_01 wrote:

Yup, Symmetricom.

?

Ross

?

?

Does anyone have information about HP Z3804A "Oscillator and Distribution Amplifier". It seems to have a GPS receiver and multiple 10MHz outputs but searching on internet doesn't return any datasheets or manuals. Only information I found is this product line was sold (probably to Symmetricom).

Ozan

?


Re: HP Z3804A

 

And looks like Symmetricom was bought by Microsemi.?

Is there a Symmetricom product number that is equivalent to HP Z3804A? Or any product that is close to HP Z3804A?

Ozan



On Fri, Sep 9, 2022 at 02:29 PM, si_emi_01 wrote:

Yup, Symmetricom.

?

Ross

?

?

Does anyone have information about HP Z3804A "Oscillator and Distribution Amplifier". It seems to have a GPS receiver and multiple 10MHz outputs but searching on internet doesn't return any datasheets or manuals. Only information I found is this product line was sold (probably to Symmetricom).

Ozan

?