yet more hp CRTs for stuff day
Further to the list I posted, I went to our offsite storage unit, and found another big pile of HP CRTs, including many new ones.
the additional ones include (all prefix 5083):?
-4454, (2) -5152 storage, -3552, -4531, -9010? specan, 3976 NIB, -2570 storage, 9083 NIB,
-5793 NIB, -4052, -3932,?
plus 2090-0384 (Toshiba) E9054B31
I am posting ll the info on stuff day here:?
and this year you can get items remotely, without coming to sphere, for your convenience.
I hope these CRTs can help somebody restore their favorite HP item.
also happy to swap for other HP items, like MSIB cables, accessories for the my 8753A, etc.
all the best,
walter? (walter2 -at- sphere.bc.ca)
sphere research corp.
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Need E5515C help on mods and features
I got one of these (working) off ebay, with option 2 (2nd generator), and would like to expand the RF coverage range. I understand there is an option for this (I have no use for the cell features), and would like to go lower in frequency.? is this a hardware thing, or just a software patch to enable the range change?? if so, how can I do it?
Is there a user group or discussion thread on this like there is for the E7495 (an amazing bit of portable technology) that I can go to?? is there a way to back up the hard drive or replace it?? this one has to be pretty old now.
also, any actual hardware manuals exist for this?? the keysight stuff is very modest is this regard.
any and all help greatly appreciated, this is a nice looking piece of hardware.
all the best,
walter (walter2 -at- sphere.bc.ca)
sphere research corp.
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HP-5354A, Schottky Diode 1900-0023
Hello all,
just joined the group. My second HP piece is next to me, a 5345A with a 5354A plugin. The 5345A seems to work fine, but the plugin doesn't. My investigations are now on the A1 mixer.
I opened it and I found a broken input C1 and a missing CR1, 1900-0023. Hmm, up to now I'm not able to find any information about this diode except that it is a schottky diode. Has anyone information about this diode? Possible replacement?
Any pointer is appreciated.
TIA,
Andreas
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Re: [WANTED] HP 85700A 32kB RAM card
At 2020-03-02 08:56 AM, Mark Litwack wrote:
On the screen issue, try the
display centering adjustments on the second page of the CAL
menu.
Thank you, I was hoping for something like that. Unfortunately, that
doesn't solve the problem. Moving the display down just moves the cut
line down with it - the top half of the row with the hp logo is cut off,
along with the entire first row with the date and time.
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.
My page 3 has only a DEFAULT CAL DATA? entry. When I press that,
text pops up at the left edge of the 3rd row of the graticule saying
"PASSCODE NEEDED". The picture below shows what was captured by
KISS-488 pretending to be an HPGL plotter. Interestingly, the error text
(I had been entering bogus commands via Telnet) is not shown at all on
the captured screen, but the hp logo (plotter commands, not text) and the
date / time above it are shown correctly.
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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
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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
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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
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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
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WTB HP 8660C Module Extension Cables 11672
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
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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?
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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
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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
toggle quoted message
Show quoted text
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.
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Re: HP3325 - no output, but sync works
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 – this would prove the rest of the generator is functional.
Regards
?
Nigel Adams –
Marconi Instruments Heritage Collection
?
toggle quoted message
Show quoted text
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
?
?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!
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Re: 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
toggle quoted message
Show quoted text
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!
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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.
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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.
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!
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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
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!
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Re: Finding feet for older HP gear
Hi Sean? you are asking for
components but you forgot to give your location
Paul located England
?
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
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Re: Hi all..have a question on a source for micro-grabber clips (smd size)
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
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!
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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!
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Dave McGuire
Paul Bicknell