¿ªÔÆÌåÓý

  1. HP-Agilent-Keysight-Equipment
  2. Messages
Expanded Topics Messages
Date
Re: sick hp 5421A Digital Processor

 

On 2/23/20 3:53 AM, ChrisBeee via Groups.Io wrote:
With the help of Dave and one of his NIM bins, one of my beauties, a
/hp/ 5583A SCA, likely will come back to life soon...
For a good reason, the members of the GammaSpectroscopy Group merely
rely on today's technology with a lot of software involved. If you want
to check your neighbor's imported garden decoration rocks at the next
BBQ, you likely don't want to carry a 5401A along. On the other hand,
turning these neat geared dials and see the numbers rolling is
absolutely priceless!
It's true that the interests on the GammaSpectroscopy list are mostly
about gamma spectroscopy measurements and materials, and less about the
instrumentation. The common focus on using PC sound cards for data
acquisition really makes me twitch, that's for sure.

I do quite a bit of that sort of stuff here (NOT using PC sound
cards); my interest in that area is more in the instrumentation side of
things than most people on that mailing list.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA
Re: sick hp 5421A Digital Processor

 

On 3/2/20 2:46 PM, ChrisBeee via Groups.Io wrote:
just in case my e-mail reply to your kind offer ended in your spam
folder: you got mail ;-)
Yup, I've been nonfunctional due to painkillers following a small oral
surgical procedure. I should have that info for you by tomorrow.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA
Re: sick hp 5421A Digital Processor

 

Hello Dave,
just in case my e-mail reply to your kind offer ended in your spam folder: you got mail ;-)
Kind regards
Chris
HP 5347A with 8482A Power Sensor?

 

Hello group. Wondering if anyone has tried using the 8482A power sensor with the 5347A. It is the only sensor I have.
Power ranges are the same but not the frequency range so clearly cannot measure above 4.2 GHz (accurately).

Assume I would not damage anything... but does the 5347 work properly or complain? Apparently only designed for:
8481A (or D), 8484A and the 8485A.

Thanks!

Mark
WTB HP 8660C Module Extension Cables 11672

Bob Koller
 

I wish to buy the Service Kit p/n 11672A, or the two extender cables, p/n 11672-60001 and 11672-60002 for the 8660x signal generator series.
Please contact me off list if you have something for sale.

Thanks,

Bob
Re: HP3336b

 

To quote Wikipedia, as just one example....

"An RCA connector, sometimes called a phono connector or (in other languages) Cinch connector, is a type of electrical connector commonly used to carry audio and video signals.", so, yes, one and the same device, just take your pick.

Unfortunately though, and whether or not you consider it to be an oxymoron, that fact remains that these same connectors, or something so physically similar as to be indistinguishable, have been widely used on American hobby and commercial radio equipment as antenna connectors and/or internally.
I won't bother to quote names as this is common knowledge and the list is so extensive.

I'm not suggesting they are widely used as RF connectors on HP equipment but that is certainly what HP used for the internal coaxial interconnects on the 3336 series, which is where we came in, and I suspect, though don't know for sure, that other similar products such as the 3325 might also use them internally.

Nigel GM8PZR


?Re: HP3336b
From: Raymond Domp Frank
Date: Sun, 01 Mar 2020 09:07:43 PST
On Sun, Mar 1, 2020 at 12:01 PM, Nigel wrote:
In general terms I could never understand why the American electronics and radio industry, from hobby level all the way through to military, embraced these so universally as RF connectors, although I suspect cost would have been a significant factor.
What type of connector are you referring to? Apart from the fact that "RF phono" seems an oxymoron to me, I am not aware of HP widely using low-cost connectors. Are you talking about RCA/cinch connectors?
Re: A dirty way to get more frequency resolution out of a signal generator

 

This will probably work but you would need a counter to verify the output signal is what you are expecting.
There is no guaranty that a low resolution generator will be able to hold steady on digits it cannot even display.

--Victor
Re: [WANTED] HP 85700A 32kB RAM card

 

Hi Steve,

On the screen issue, try the display centering adjustments on the second page of the CAL menu.

If that doesn't help. over-scan and centering problems can also be caused by the wrong sync.? For that, check the third page of the CONFIG menus.? There's a button there called DEFAULT SYNC to reset the sync settings to NRM (normal) mode which are best for the internal CRT.

-mark


On Sun, Mar 1, 2020 at 07:42 AM, Steve Hendrix wrote:
I just tested the ZSETADDR and ZRDWR? commands given there, on my HP8595E. They seem to do something, but not what I'd have expected. Subsidiary problem: My 8595E display centering is a little off, such that the top line (where any error messages appear) is mostly cut off, making it very hard to read the messages. I suppose I can do the HPGL screen dump to my KISS-488, but that rather slows down the process. Is there a straightforward way to adjust the centering? I recall many years ago watching my dad adjust centering on a TV by moving the magnets around the tube yoke on a TV - hoping that's not the method here!

Steve Hendrix

At 2020-03-01 05:19 AM, Askild wrote:
In this thread on eevblog forum:
It is listed undocumented gpib commands for the 856xE series, one can be used to read any memory location.
I have no idea if this works with the 859xE series. These commands is not accepted by my 8562A.
Re: HP3325 - no output, but sync works

 

¿ªÔÆÌåÓý

Simple check is to take the cover off, locate the attenuator board and find the input cable.

Put a scope on that and it should have a signal ¨C this would prove the rest of the generator is functional.

Regards

?

Nigel Adams ¨C Marconi Instruments Heritage Collection

?

From: [email protected] <[email protected]> On Behalf Of Stephen Hanselman
Sent: 02 March 2020 11:31
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP3325 - no output, but sync works

?

Odds are the attenuators is shot. ?If it has the flat black aeromat relays you won¡¯t hear them even if the work. They are latching type so checking the drive signal will only give you a plus. ?

You probably will not want this but we have both replacement relays, for the aeromat¡¯s and a replacement pca. ?If you¡¯re interested shoot me an e-mail at s.hanselman at datagatesystems dot com

Regards,

?

Stephen Hanselman

Datagate Systems, LLC

?

?



On Mar 1, 2020, at 08:30, Randy Newman <randy.n.at.home@...> wrote:

?New to the group, but have used HP gear for decades. I have a 3325 which appears to have an output attenuators issue. I can see the sync output on my Tek (555) scope, but do not see anything from the signal output connector. I have tried switching amplitudes, but do not hear any relay clicking (I had read some other post about the relays being audible). This unit was purchased years back as surplus, and had a red ¡°not economical to repair¡± tag on it. I think I paid $25 for it. All the 7-segment displays work, and I can set for various frequencies, and see the sync....just no output,
Any ideas appreciated!

Re: HP3325 - no output, but sync works

 

¿ªÔÆÌåÓý

Odds are the attenuators is shot. ?If it has the flat black aeromat relays you won¡¯t hear them even if the work. They are latching type so checking the drive signal will only give you a plus. ?
You probably will not want this but we have both replacement relays, for the aeromat¡¯s and a replacement pca. ?If you¡¯re interested shoot me an e-mail at s.hanselman at datagatesystems dot com

Regards,

?

Stephen Hanselman

Datagate Systems, LLC




On Mar 1, 2020, at 08:30, Randy Newman <randy.n.at.home@...> wrote:

?New to the group, but have used HP gear for decades. I have a 3325 which appears to have an output attenuators issue. I can see the sync output on my Tek (555) scope, but do not see anything from the signal output connector. I have tried switching amplitudes, but do not hear any relay clicking (I had read some other post about the relays being audible). This unit was purchased years back as surplus, and had a red ¡°not economical to repair¡± tag on it. I think I paid $25 for it. All the 7-segment displays work, and I can set for various frequencies, and see the sync....just no output,
Any ideas appreciated!

Re: LO port on HP 8591A

 

Thanks, your comment made me laugh. Glad to hear its not just about saving $20 anymore and we now actually have another brand/series of SA that it can be used for.
Re: Hi all..have a question on a source for micro-grabber clips (smd size)

 

Something like HP 5090-4356?? Plenty around on ebay at a $ or so each.

On Sun, Mar 1, 2020 at 8:07 PM Randy Newman <randy.n.at.home@...> wrote:
Hi all: I am in the process of troubleshooting a Tek AM503 current probe amplifier and am looking for the small SMD sized type of grabber clips. I have some of the larger Pomona types with the L-shaped grabber. This is a bit large to clip around densely populated leaded components. I did see the real Pomona SMD types, but at around $20 plus for single quantities, that is way too steep for my tiny hobby budget ( for my paying job..not an issue, as I recently purchased some of the Tek clips for their GHz rated probes for $500 a pack)..
I searched Amazon, but the clips I found were cheap made in you-know-where (isn¡¯t everything made there...??).
And reputable ones were WAY out of my price range. I have some of the logic-analyzer type, but really do not want to cannibalizes any just to make grabbers for this project.
Any ideas appreciated!

Re: Hi all..have a question on a source for micro-grabber clips (smd size)

 

I don't know if something like this is what you're talking about, but I thought I'd offer it on the chance that it was what you're looking for.
?

Having a dead AM503B, I'm keenly interested in any information that might help resurrect it.

Best wishes,
Grant Hopper


On Sun, Mar 1, 2020 at 8:07 PM Randy Newman <randy.n.at.home@...> wrote:
Hi all: I am in the process of troubleshooting a Tek AM503 current probe amplifier and am looking for the small SMD sized type of grabber clips. I have some of the larger Pomona types with the L-shaped grabber. This is a bit large to clip around densely populated leaded components. I did see the real Pomona SMD types, but at around $20 plus for single quantities, that is way too steep for my tiny hobby budget ( for my paying job..not an issue, as I recently purchased some of the Tek clips for their GHz rated probes for $500 a pack)..
I searched Amazon, but the clips I found were cheap made in you-know-where (isn¡¯t everything made there...??).
And reputable ones were WAY out of my price range. I have some of the logic-analyzer type, but really do not want to cannibalizes any just to make grabbers for this project.
Any ideas appreciated!

Re: Finding feet for older HP gear

 

¿ªÔÆÌåÓý

Hi Sean? you are asking for components but you forgot to give your location

Paul located England

From: [email protected] [mailto:[email protected]] On Behalf Of [email protected]
Sent: 02 March 2020 01:12
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] Finding feet for older HP gear

?

Hi all,

I have a number of examples of the older style case HP gear (8640B, 8405A, and now a 3440A) that all lost their feet at some point before I got them. I know these feet are rather scarce, but I hold out hope to find some. Anyone here have some they'd be willing to part with? Feel free to message me offline and we'll negotiate fair compensation.

Thanks!

Sean

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
Re: Hi all..have a question on a source for micro-grabber clips (smd size)

 

¿ªÔÆÌåÓý

Are you able to put up an image of what you are looking for, might help folk
understand more clearly what you are after.
Regards
Nigel
From: [email protected] <[email protected]> on behalf of Randy Newman <randy.n.at.home@...>
Sent: 02 March 2020 04:07:19
To: [email protected] <[email protected]>
Subject: [HP-Agilent-Keysight-equipment] Hi all..have a question on a source for micro-grabber clips (smd size)
?
Hi all: I am in the process of troubleshooting a Tek AM503 current probe amplifier and am looking for the small SMD sized type of grabber clips. I have some of the larger Pomona types with the L-shaped grabber. This is a bit large to clip around densely populated leaded components. I did see the real Pomona SMD types, but at around $20 plus for single quantities, that is way too steep for my tiny hobby budget ( for my paying job..not an issue, as I recently purchased some of the Tek clips for their GHz rated probes for $500 a pack)..
I searched Amazon, but the clips I found were cheap made in you-know-where (isn¡¯t everything made there...??).
And reputable ones were WAY out of my price range. I have some of the logic-analyzer type, but really do not want to cannibalizes any just to make grabbers for this project.
Any ideas appreciated!

Re: HP3325 - no output, but sync works

 

Joe and Szabolcs: thanks for the ideas! I have not yet opened the box (after years...). Since this unit came from my employer, who has a metrology, and calibration group, I¡®m betting on the bad cable, bad power, or fuse. Once I open it up ( hopefully in the next 2 months, I will post what I find out). My unit has the ovenized stall oscillator and the high voltage option. I¡¯m hoping to use it as a calibration source.....just need to check it against a stable reference (I also have an HP 105A reference source).

Thanks again!
Hi all..have a question on a source for micro-grabber clips (smd size)

 

Hi all: I am in the process of troubleshooting a Tek AM503 current probe amplifier and am looking for the small SMD sized type of grabber clips. I have some of the larger Pomona types with the L-shaped grabber. This is a bit large to clip around densely populated leaded components. I did see the real Pomona SMD types, but at around $20 plus for single quantities, that is way too steep for my tiny hobby budget ( for my paying job..not an issue, as I recently purchased some of the Tek clips for their GHz rated probes for $500 a pack)..
I searched Amazon, but the clips I found were cheap made in you-know-where (isn¡¯t everything made there...??).
And reputable ones were WAY out of my price range. I have some of the logic-analyzer type, but really do not want to cannibalizes any just to make grabbers for this project.
Any ideas appreciated!
Finding feet for older HP gear

 

Hi all,

I have a number of examples of the older style case HP gear (8640B, 8405A, and now a 3440A) that all lost their feet at some point before I got them. I know these feet are rather scarce, but I hold out hope to find some. Anyone here have some they'd be willing to part with? Feel free to message me offline and we'll negotiate fair compensation.

Thanks!

Sean
Re: [WANTED] HP 85700A 32kB RAM card

 

The logical step in any situation is to replace a failed component.? But when one relies 100% upon a mission critical part, without knowing that it failed, they can be subtly surprised if it had failed.

The presence of a fail-safe assembly can sometimes woo a few in to false security.

I'm sure that nearly everyone has grasped the concept that anything can fail.

Gregf
Re: Fuses for 5350B input 2 [lower frequency input]

 

Thankyou Askild, and Greg. I have an inquiry in to one of the suppliers on eBay. Shipping showed as about $350 - I think this is a little too high, and might be an error ;). I have a 5350B on its way to New Zealand from Texas, so If I order the fuses soon, they should arrive about the same time. I`m hoping that the defective input 2 is just a blown fuse. Thanks for your responses.......................................................................................................................Don.
48061 - 48080 of 151544