Can anyone on the group provide technical information or driver for the Agilent Z2466A VXI solid state switch? I could not find anything on the Agilent www or ftp servers. Please send an offer.
Best regards,
Dieter Teuchert
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Re: data aquisition switch
Hello Paul, You're very welcome. The 34970A is a nice system. As mentioned, I have a number of functional 3497A's, a couple of untested 3498A extenders and a large amount of relevant hard copy documentation, along with a various cards which have been tested and are known to be functional. I am happy to pass on the IBasic code I wrote to test the cards and the test results, and was actually contemplating offering it all on the big auction sometime, but it's a lot of effort for potentially little return, so if you ar any others in the group wish to take the 3497A path, I am happy to help at minimum cost. We obtained the whole lot for a song from a closed local R&D project and don't expect a large return for it. Regards, Ron Wilkinson ==== Ron and David
Thank you for the informative answers, I can start to trawl the info and manuals etc.
I currently have the use of a 34970a and I've become used to it being on my bench. Its very flexible and easy to use but but its hire period
finishes shortly. I will have to buy something to replace it but it
really needs to be an earlier unit to make it affordable for home use.
Anyway, thanks again, lots to go on now.
Regards Paul
--
73 de Paul GW8IZR IO73TI
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Re: data aquisition switch
Ron and David
Thank you for the informative answers, I can start to trawl the info and manuals etc.
I currently have the use of a 34970a and I've become used to it being on my bench. Its very flexible and easy to use but but its hire period finishes shortly. I will have to buy something to replace it but it really needs to be an earlier unit to make it affordable for home use.
Anyway, thanks again, lots to go on now.
Regards Paul
--
73 de Paul GW8IZR IO73TI
|
Bugger! I pressed the wrong button. Apologies to all...........................................................Don C.
toggle quoted message
Show quoted text
----- Original Message -----
From: Don Collie
To: hp_agilent_equipment@...
Sent: Wednesday, December 20, 2006 7:44 PM
Subject: Re: [hp_agilent_equipment] 8555A spares
Hi Chris,
All noted. I will give your display board the treatment
over Christmas. We are going to do an overnight trip to Milford Sound [Red
boat cruise], but I hope to find time in between opening presents for you
:-)
The cause of damage to the display board might
be due to insulation failure in the 3 conductor "ribbon"
that connects the EHT and [Shock!, Horror!] storage grids to their
respective circuits. Mine has started to "splat" alarmingly, so I`m going to
replace the ribbon with EHT wire [the Teflon inner from some 1/8 inch Teflon
coax - I`ve tested it to 13kV D.C.], and REAL wire for the grids, before I
power the thing up again.
After I`ve gone over your board [and after I`ve fixed the EHT problem in
my unit !], I will fit your board in my 141T, to check that it goes OK, and
then return it to you good as new.
I`ll keep you posted!
Have a good one Chris, and your family to!
...................... from the Collies! [Attachment : Meriam(wife),
Philip, Joanna (#1 daughter), Jacqueline(#2), and yours
truely]...............................................Don.
P.S. I really apperciate those bits, Chris.
P.P.S. : Have you `scoped and measured the 4 PSU rails?
----- Original Message -----
From: "Chris van Lint" <chrisvanlint@...>
To: <hp_agilent_equipment@...>
Sent: Wednesday, December 20, 2006 5:30 PM
Subject: [hp_agilent_equipment] 8555A spares
> Hi Don,
>
> The box with the bits and pieces was delivered to the post office this
> morning and should be on the way to you. The postage was < AU$ 10.00, so
> I
> don't think that we are going to loose any sleep over that. It will
> probably cost you about the same to return the display board to me.
>
> Have a great Christmas and a Happy but above all Prosperous New Year.
>
> From the van Lints
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.432 / Virus Database: 268.15.25/593 - Release Date:
> 12/19/2006 1:17 PM
>
>
------------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.25/593 - Release Date: 12/19/2006 1:17 PM
|
Hi Chris,
All noted. I will give your display board the treatment
over Christmas. We are going to do an overnight trip to Milford Sound [Red
boat cruise], but I hope to find time in between opening presents for you
:-)
The cause of damage to the display board might
be due to insulation failure in the 3 conductor "ribbon"
that connects the EHT and [Shock!, Horror!] storage grids to their
respective circuits. Mine has started to "splat" alarmingly, so I`m going to
replace the ribbon with EHT wire [the Teflon inner from some 1/8 inch Teflon
coax - I`ve tested it to 13kV D.C.], and REAL wire for the grids, before I
power the thing up again.
After I`ve gone over your board [and after I`ve fixed the EHT problem in
my unit !], I will fit your board in my 141T, to check that it goes OK, and
then return it to you good as new.
I`ll keep you posted!
Have a good one Chris, and your family to!
...................... from the Collies! [Attachment : Meriam(wife),
Philip, Joanna (#1 daughter), Jacqueline(#2), and yours
truely]...............................................Don.
P.S. I really apperciate those bits, Chris.
P.P.S. : Have you `scoped and measured the 4 PSU rails?
toggle quoted message
Show quoted text
----- Original Message ----- From: "Chris van Lint" <chrisvanlint@...> To: <hp_agilent_equipment@...> Sent: Wednesday, December 20, 2006 5:30 PM Subject: [hp_agilent_equipment] 8555A spares Hi Don,
The box with the bits and pieces was delivered to the post office this
morning and should be on the way to you. The postage was < AU$ 10.00, so
I
don't think that we are going to loose any sleep over that. It will
probably cost you about the same to return the display board to me.
Have a great Christmas and a Happy but above all Prosperous New Year.
From the van Lints
Yahoo! Groups Links
--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.25/593 - Release Date:
12/19/2006 1:17 PM
|
Hi Don,
The box with the bits and pieces was delivered to the post office this morning and should be on the way to you. The postage was < AU$ 10.00, so I don't think that we are going to loose any sleep over that. It will probably cost you about the same to return the display board to me.
Have a great Christmas and a Happy but above all Prosperous New Year.
From the van Lints
|
Re: data aquisition switch
There were several data acquisition boxes prior to the 34970A. The original data acquisition boxes (in the middle '70's) were the multiprogrammers (6940A and 6942A). These had plug-in cards each with limited functionality. Quite flexible in capability, very hard to program. The 3497A came out in the early 1980's. A great data acq. box with lots of function cards and multiplexers. Well received by a lot of folks who were just getting into using digital methods instead of strip chart recorders. There was the 2250A, an industrial data acq machine enclosed in a NEMA 12 enclosure. It had an HP 1000 L-series CPU as the control processor. It was designed to work on factory floors in really dirty environments. The 3852A was introduced in the mid to late 1980s. An upgrade to the 3497A, with internal memory, faster voltmeter/ADC, greater channel count, etc. The 3421A was a small, battery operated box that could measure about 30 channels of sensors. It was very slow, and had both GP-IB and HP-IL interfaces. The HP-IL interface allowed the unit to be controlled by an HP-41C handheld calculator, so you could have a truly portable data acq. system. Somewhere in the mid to late 1980s, there were the PC-Instruments. Not real popular, hard to configure, and generally a dud in the market. You don't hear much about those anymore. Finally, the 34970A came about in the mid to late 1990's. Based on the 34401A voltmeter, it provides enough data acquisition capability to serve many applications. Thanks for the trip down memory lane! Dave --- Paul_group <paul_group@...> wrote: was there a predecessor to the 34970A? if so what is
the model number
please so that I can do some research.
TIA
Regards Paul
--
73 de Paul GW8IZR IO73TI
__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around
|
Re: data aquisition switch
Hello Paul - It is the 3497A and there are manuals etc on the Agilent
web site. I have a number of them along with most plug-in cards and
an enormous amount of hard copy documentation for them.
Regards,
Ron Wilkinson
====
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Show quoted text
was there a predecessor to the 34970A? if so what is the model number
please so that I can do some research.
TIA
Regards Paul
--
73 de Paul GW8IZR IO73TI
|
HP 8568AB (or 8568A+01K) retrofit kit information sought
I am looking for the documents which came with the retrofit kit. I
searched the Agilent site and all the ususal manual dealers - but no
luck. Is anybody willing to sell/rent/donate me an original/copy/scan?
I hope to acquire a dead 8568B (RF part) and transplant the processor
board(s) into my 8568A. The 85685A preselector won't listen to an -A
version... I ought to study the catalogs before buying!
Thanks,
Gottfried Ira
|
was there a predecessor to the 34970A? if so what is the model number please so that I can do some research.
TIA
Regards Paul
--
73 de Paul GW8IZR IO73TI
|
Re: Looking for an 8640B manual
I just noticed that Manuals Plus is running a 50% off sale on their original
hardcopy manuals (not reprints). That makes some of their more-expensive
manuals and sets a lot more affordable.
-- john, KE5FX
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Show quoted text
-----Original Message-----
From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]On Behalf Of david9905
Sent: Tuesday, December 19, 2006 2:10 PM
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: Looking for an 8640B manual
--- In hp_agilent_equipment@..., "windsaloft2000"
<w4cx@...> wrote:
Any 8640B manuals lurking out there??
Darrell W4CX
www.agilent.com, search on 8640B. Service manual and operating manuals
are available as pdf.
|
Re: Looking for an 8640B manual
--- In hp_agilent_equipment@..., "windsaloft2000" <w4cx@...> wrote:
Any 8640B manuals lurking out there??
Darrell W4CX
www.agilent.com, search on 8640B. Service manual and operating manuals are available as pdf.
|
HP system and data diskettes; be warned!
During the last months, here, on this mailing-list as on other HP equipment related forums I could read of some guys suggesting to use DSHD (Double Side High Density, 1440KBytes) type floppy diskettes as system and data media for some equipment like the HP1652B (but other are mentioned too).
Be aware of the fact that every older HP floppy unit mounted into measurement equipment that has originally used DSSD (Double Side Single Density) also known as 720KByte floppies *cannot be used* for writing/reading DSHD media.
The reason for this limitation has to be searched in the different resulting track width and magnetic magnitude on the disk caused by the physical dimensions of the writer/reader heads and the frequencies used for the signal cancelling/writing signals used.
Yes, it is sometimes possible to read from a DSHD written by that DSSD floppy drives but this only for a short period of time after writing.
After a longer time passes, the magnetic field on the DSHD decreases due to typical magnetic substrate characteristics, and the data is then no more correctly readable.
Again, don't be fooled from the initial success in reading from DSHD floppies while the diskettes has been just written! There is no chance this disks last to be read for a long time.
Regards
Andreas Troschka
vy 73s de IK2WQI - JN45ol
|
Re: HP PCB's in England - free to a good home
Hi Robert
If they are still looking for a home, email me a list to: starmux64@...
Regards, Steve
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----- Original Message ----
From: Robert Atkinson <robert8rpi@...>
To: hp_agilent_equipment@...
Sent: Tuesday, December 12, 2006 9:57:03 AM
Subject: [hp_agilent_equipment] HP PCB's in England - free to a good home
Hi,
I've recently lost some of my storage space and am looking for a home
for a small collection of PCB's from various items of HP test equipment.
They are mostly from earlier solid state equipment. Collection
preferred, I'm in Christchurch Dorset, or postage at cost.
Anyone interested please contact me off-list
Robert G8RPI
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Re: was HP 5342A board, now IC sockets vs soldering
A little off topic:
In the 1980's, I worked at a company that had a policy of putting
all IC's in high quality sockets. This came in handy because some
of the techs didn't really know how to troubleshoot broken pc
boards. They just kept swapping IC chips until the pc boards
started working.
Of course, there was always the occasional pc board which defied all
attempts at repair, and these semi-skilled technicans didn't want
their boss to know they had failed to fix it. So, when the boss
wasn't around, they would toss the "unrepairable" board up through a
hole in the 12 foot accoustical drop-ceiling, where a panel was
missing, as if to pretend that the board never existed.
Unbeknownst to their boss, this clandestine activity went on for a
couple of years. Finally, on one fateful day, another board was
tossed through the magical ceiling hole. This board was "the straw
that broke the camel's back". One of the ceiling panels slowly
started sagging and finally broke in half. At that point, a shower
of defective pc boards began raining down from the sky! Ouch!
There's no way to hide that from the boss!
|
Re: was HP 5342A board, now IC sockets vs soldering
Yes, its a tough call either way. FWIW, when I worked at Tektronix some 25 years ago they had an internal design interconnect handbook that recommended against IC sockets if at all possible. Their data showed the ICs were more reliable than the sockets. And if there were infantile reliability or spec problems, it was cheaper and better overall to prescreen/burn-in the ICs rather than sort them in production via sockets.
An exception to the no-socket recommendation is where firmware PROMs were likely to be upgraded. And in a rare instance, I've heard of memory tester boards that wouldn't work properly if the sockets weren't present (!). But outside of special cases like these, the ease of servicing advantage is outweighed by the socket reliability. Even a premium socket inserts an unnecessary interconnection. Save them for breadboarding. I haven't read anything along these lines since, but of course the industry has moved to SMT where soldering in the ICs is by far the norm.
Don
From: d.seiter@...
Reply-To: hp_agilent_equipment@...
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] HP 5342A processor board
Date: Mon, 18 Dec 2006 19:36:05 +0000
I would replace a supect socket with a good quality one rather than solder the IC in. If the IC is bad, it just means more work and possible damage to remove it again.
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Re: HP 5342A processor board
I would replace a supect socket with a good quality one rather than solder the IC in. If the IC is bad, it just means more work and possible damage to remove it again.
-Dave
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-------------- Original message -------------- From: Didier Juges <didier@...> Good point, I guess with 20 years old gear, you are not worried about having to upgrade the software :-) I am seriously thinking of doing that with my HP 5370A if the problem comes back. Alternately, I could put in good quality machined sockets, those in there right now look downright cheap. Didier DON CRAMER wrote: Many years ago with microcomputers which came with low quality sockets, I
had an assembler remove the sockets and solder the ICs in directly. That
eliminated intermittent crashes in some 24/7 applications we were using them
in. Something to consider in the general case.
Don Cramer
Beaverton, OR
|
Re: HP 5342A processor board
Good point, I guess with 20 years old gear, you are not worried about having to upgrade the software :-)
I am seriously thinking of doing that with my HP 5370A if the problem comes back. Alternately, I could put in good quality machined sockets, those in there right now look downright cheap.
Didier
DON CRAMER wrote:
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Show quoted text
Many years ago with microcomputers which came with low quality sockets, I had an assembler remove the sockets and solder the ICs in directly. That eliminated intermittent crashes in some 24/7 applications we were using them in. Something to consider in the general case.
Don Cramer
Beaverton, OR
|
Re: HP 5342A processor board
Jim,
There is a possibility that one of the ROMs might be bad. You may be
able to get the code from Blue Feather Tech and burn new ROMs.
If the CPU is getting it's clock and the reset is good, you should see
the CPU clocking away at random code, pretty much continuously and if
so, the address lines will have lots of digital garbage on them. If the
address lines don't move, the CPU is toast.
I have a defunct Tek 7L5 CPU card, the processor is a Tek 155 0198 00,
which I believe is a 6800. Someone on the list may be able to confirm.
It is in a socket, so if you need the chip, let me know.
Didier
Jim Miller wrote:
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--- Didier Juges <didier@...> wrote:
Have you tried the obvious of pulling and
re-inserting the CPU and ROMs
(and any other chip on socket)?
Hi Didier,
Thank you for the suggestion!
I had already tried removing/reinserting the CPU which
is the only
socketed chip. I had even painted its legs with
deoxit gold before reinsertion. Several iterations of
remove/reinsert produced no results.
I am getting clock signals on the test points and the
RESET line looks as it should which is why I am
suspecting CPU or ROM failure.
Jim N8ECI
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Yahoo! Groups Links
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Re: HP 5342A processor board
Many years ago with microcomputers which came with low quality sockets, I had an assembler remove the sockets and solder the ICs in directly. That eliminated intermittent crashes in some 24/7 applications we were using them in. Something to consider in the general case. Don Cramer Beaverton, OR From: Didier Juges <didier@...> Reply-To: hp_agilent_equipment@... To: hp_agilent_equipment@... Subject: Re: [hp_agilent_equipment] HP 5342A processor board Date: Mon, 18 Dec 2006 12:13:01 -0600 Jim, Have you tried the obvious of pulling and re-inserting the CPU and ROMs (and any other chip on socket)? My 5370A has needed that treatment at least 3 times, in spite of Deoxit ProGold. Each time it's been a different chip. I have had problems on on the ROM card (twice) and the last time on the CPU card (with a little PLD, probably used for address decoding). The fix is simple, simply pulling the chips and putting them back fixed the problem, but the last time I put some Deoxit on the chips of the ROM card and the ROM card seems to be working solid now. I have had a similar problem with a Marconi sweeper, but none of the other HP gear I have has given me these problems. Maybe it was a bad batch of sockets? Didier KO4BB Jim wrote: Hi,
I am repairing a 5342A counter that has a bad A14 processor card. I have traced the problem to the CPU board by trading cards with a known good unit.
Are there any common failure modes with this processor assembly? EG CPU failure, ROM failure? The processor is a socketed MC6800L and there are three soldered ROMs. Is there anything special about the "L" revision of the 6800 other than the ceramic/gold package?
Thanks in advance,
JIm N8ECI
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