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Long time member of HP Agilent's Yahoo group but, for some reason, my account did not migrate to groups.io so I need to post a message to get out of the moderated box. So here I am, posting a message. Sorry for the bandwidth but I don't have anything to ask for or contribute to at this time.

Thanks,
Barry - N4BUQ

Michael A. TerrellThere are a lot of cheaper listings than that one from the infamous Don Lancaster.

I buy the female to female 40 conductor ribbons, and use them to make wiring harnesses for test fixtures and prototypes. The different sizes of Dupont housings sell for pennies each, by the hundred. A small screwdriver or the tip of a small Exacto blade allow you to remove the single housings, and then to pop them into the larger housing that you need.

<>

Michael Terrell
--

On Sun, 26 Aug 2018 16:19:22 -0700, you wrote:

Harvey, would this be something similar to what you are suggesting? Looks like it, if only I did not need to buy 90 pcs it would be perfect. But I'll settle for 10 if need be, 90 is a bit much. I'll keep searching.



I hope its ok to publish e-pay links here...

Yes, that's about right, but the "rare" is not deserved. My previous
post points you at the generic stuff.

Harvey

On Sun, 26 Aug 2018 16:13:07 -0700, you wrote:

On Sun, Aug 26, 2018 at 01:10 PM, Harvey White wrote:

You'll like this one. May not be the absolute best, but give it a
try.

Using one of the 0.025 inch square pin jumpers (available relatively
inexpensively on the internet and useful anyway, I could suggest
amazon.com), you want one that has at least one socket on it,
depending on what you want to do to the other end.

Remove the plastic square header, won't fit.

Take a thin piece of heatshrink and cover the exposed pin.

It fits over the ground pin, not sure how deeply, but it will work.

Advantage here is that by using F-F you can likely use a grabber. By
using M-F you can plug it into a breadboard strip.

Hi Harvey, your idea sounds like going in the right direction. I have not yet done any searches on the jumper cables you mention on Amazon (I assume they are probably also available on ebay which usually has free shipping on small stuff), but wanted to ask if you by any chance have a part number or reference to these jumper cables? This being kind of critical size, and I can imagine that out there are more than one size jumpers like these, if by any chance you have this additional info it would be great. Otherwise I'll just start picking up the trail on your tip. Thanks!

Actually, there *is* no part number. These are the generic chinese
made jumper made jumpers. These are about 6 inches long. They can be
had in either M-M, M-F, and F-F varieties. You simply pull them apart
on one line. I'll show you the amazon link (and there are many
vendors)


Prototype-Assortment-Raspberry/dp/B077X7MKHN/ref=sr_1_17?ie=UTF8&qid=1535327428&sr=8-17&keywords=breadboard+jumper+wires


This is a vendor I have ordered from before with decent results. Note
that you're mostly interested in the M-F and perhaps the F-F ones.

Amazon has free shipping if you order more than a certain amount.
Depends on what you want. Feel free to ask me outside the group, but
I have ordered several kinds of things useful for microprocessor
designs from amazon, and I may be able to help.

I don't count the length as critical, you could always cut and splice
as needed.

Harvey

Harvey, would this be something similar to what you are suggesting? Looks like it, if only I did not need to buy 90 pcs it would be perfect. But I'll settle for 10 if need be, 90 is a bit much. I'll keep searching.



I hope its ok to publish e-pay links here...

On Sun, Aug 26, 2018 at 01:10 PM, Harvey White wrote:

You'll like this one. May not be the absolute best, but give it a
try.

Using one of the 0.025 inch square pin jumpers (available relatively
inexpensively on the internet and useful anyway, I could suggest
amazon.com), you want one that has at least one socket on it,
depending on what you want to do to the other end.

Remove the plastic square header, won't fit.

Take a thin piece of heatshrink and cover the exposed pin.

It fits over the ground pin, not sure how deeply, but it will work.

Advantage here is that by using F-F you can likely use a grabber. By
using M-F you can plug it into a breadboard strip.

Hi Harvey, your idea sounds like going in the right direction. I have not yet done any searches on the jumper cables you mention on Amazon (I assume they are probably also available on ebay which usually has free shipping on small stuff), but wanted to ask if you by any chance have a part number or reference to these jumper cables? This being kind of critical size, and I can imagine that out there are more than one size jumpers like these, if by any chance you have this additional info it would be great. Otherwise I'll just start picking up the trail on your tip. Thanks!

Pat

It is yours send $1.75 ( .25 to cover PayPal) I can send you a paypal invocie if need be?? .or the cash to 7102 Valrie Ln, Riverview, FL 33569

Dave

--
Dave
Manuals@...
www.ArtekManuals.com

Hey Bill,?

Is there any chance of getting a copy of this? I've been looking for the B version for some time but that seems not to exist anywhere. I have both a Viper card and the last version of HP Basic for Windows so I'm interested in trying to get it to work.

Thanks,

TonyG

John,

I struggled to find schematics for my 8664A to repair it. ? is the best resource,? but they have nada for 8664.

I fellow member suggested I look at a similar SIG GEN, 8643A, and ARTEK does have the CLIP for that model, which I purchased.
It was very useful but only a guide. As I remember 8643A uses a conventional VCO and not a YIG.

Did you check the power supplies, and does the CPU board come up OK ?

Regards,
BRIAN (AI6MK)

On Sun, 26 Aug 2018 17:37:11 -0400, you wrote:

I'm with Harvey on this one. Use can use the pulser probe or a function
generator to feed the circuit while you use the current probe to follow
the current around the board to the short. Generally it takes me longer
to hook everything up than to actually find the short.

Short story was that I had a design with an S1D13781 graphics
controller chip on an SPI interface, and used that interface for more
than one chip. Other chip didn't work.

put the processor in a "read back" loop for SPI and the other chip
(since the graphics were fine). Traced the signal back to the
graphics chip:

Quote the manual: "The S1D13781 chip holds the MISO line low when not
selected...."

Oh...

Not like that made any sense

Add a 1G126 or 1G125 so that when CS is down, the MISO line out is
active, otherwise tristated.

reasonably quick solution to problem.

Still doesn't make any sense to do that. All subsequent designs have
that gate in automatically.

"We don't need no stinkin' standards....."

Harvey

Fantastic for finding bad tants across power rails.

Paul

On Sun, Aug 26, 2018 at 04:10:08PM -0400, Harvey White wrote:

On Sun, 26 Aug 2018 11:32:11 -0700, you wrote:

Not sure what happened as my post that was sent in by email apears to be missing the body text. I am replying to myself to send in the missing text. Sorry if I am in some way doing it wrong.

=== Original Message ===

Hi, I am new to this group here at IO, and was redirected from the former Yahoo HP group where I used to be a member a long time ago.

I just recently acquired a nice 5022A TTL/CMOS Troubleshooting Kit which includes one each of the 545A Logic probe, 546A Logic Pulser, and 547A current probe, all in a nice HP pouch, and everything in very good condition given age, and fully operational. Originally this kit also included the 548A logic clip, but this specific bundle I purchased did not, so in the mean time I managed to get one clip separately to make it complete once again.

I've got them. You'll find that the current probe is the least used,
but the most valuable of the parts. VERY useful in finding a shorted
signal line, just keep it active and look for the largest current
flow.

Hi,
If you're into weight lifting the 8664A is the better choice.?
I have both, and to the casual observer, without the ability to measure phase noise,? I cannot tell the difference in spectral purity.
I use a GPSDO as the REF so there is really no issue with frequency stability/accuracy.? My 8648 has the TXCO and it's but useless.?
If they ever break,? good luck trying to fix the 8664A...there is very little doc and only limited schematics.

As a GP SIG GEN,? I would opt for the simpler, and lighter, 8648.

Just my 2 cents
Brian (AI6MK)
?

Dave, if no one has yet claimed it, I'll take it off your hands.


-Pat

I'm with Harvey on this one. Use can use the pulser probe or a function
generator to feed the circuit while you use the current probe to follow
the current around the board to the short. Generally it takes me longer
to hook everything up than to actually find the short.

Fantastic for finding bad tants across power rails.

Paul

--
Paul Amaranth, GCIH | Rochester MI, USA
Aurora Group, Inc. | Security, Systems & Software
paul@... | Unix & Windows

I am sure many of us have seen useless messages like

"My spectrum analyzer has stopped working"

and when one reads the post, you reallise they don't say the make or model of the spectrum analyzer, or tell you what the problem is. The times I see people asking questions on the Keysight VNA forums, without ever mentioning the model of VNA they have.?

I don't know if you have ever seen this document



"How To Ask Questions The Smart Way"

but it is aimed at improving the way people ask questions? - mainly on open-source software. I stuck a few suggestions of what I thought was helpful at

/g/HP-Agilent-Keysight-equipment

would be intersted if others can think of how to imrpove upon that.

Dave

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On 08/26/2018 04:06 PM, Tam Hanna wrote:

why must it be the racial half arab with the anger issues who steps in.

Quote of the day!

Yeah, normally I am the guy who starts the ruckus...

With best regards
Tam Hanna
---

Enjoy electronics? Join 8300 other followers by visiting the Crazy Electronics Lab at

On 26.08.2018 22:10, Dave McGuire wrote:

On 08/26/2018 04:06 PM, Tam Hanna wrote:

why must it be the racial half arab with the anger issues who steps in.

Quote of the day!

RFI guy sent 40MB of pics. He didnt do it out of spite,

Of course not.

he did not know better.

This is a problem, but it can be (and I believe has been) addressed.

We all paid a few cents to our ISP. Its shareholders can now buy
some extra blow.

That's an issue for people on metered bandwidth, but that's not
everyone's issue with it.

He now knows better. Let us resume technical talk. He has some PCMCIA
SRAM cards - if he cannot use them, the folks at the LeCroy user group
would love to buy them.

Do the LeCroy oscilloscope use linear flash? I didn't know that.

-Dave

On Sun, 26 Aug 2018 11:32:11 -0700, you wrote:

Not sure what happened as my post that was sent in by email apears to be missing the body text. I am replying to myself to send in the missing text. Sorry if I am in some way doing it wrong.

=== Original Message ===

Hi, I am new to this group here at IO, and was redirected from the former Yahoo HP group where I used to be a member a long time ago.

I just recently acquired a nice 5022A TTL/CMOS Troubleshooting Kit which includes one each of the 545A Logic probe, 546A Logic Pulser, and 547A current probe, all in a nice HP pouch, and everything in very good condition given age, and fully operational. Originally this kit also included the 548A logic clip, but this specific bundle I purchased did not, so in the mean time I managed to get one clip separately to make it complete once again.

I've got them. You'll find that the current probe is the least used,
but the most valuable of the parts. VERY useful in finding a shorted
signal line, just keep it active and look for the largest current
flow.

The kit also included all the grabber clips that go on the power cables, plus two spares. But one thing I am still missing is the Ground Clip cable, which can be plugged into either the 545A or 546A in order to achieve a shorter ground path connection. This cable has the typical grabber on one end, and on the other has a kind of sleeve that would slip over a connector on the probe that is basically just a rather small diameter pin recessed inside the body of the probe.

Yep.

I assume that probably the easiest solution would be to just try to build a new cable from scratch, and already having the grabber, that only leaves me to find something suitable to use at the other end. My question would be if someone here has already attempted to build such a cable and if so which type of sleeve connector did they use (or would recommend - maybe a Mouser or Digikey PN would be nice). If nothing else I would have to start looking at those places myself and eventually try to find something that might fit, but I was hoping this has already been done and a working part has been found.

You'll like this one. May not be the absolute best, but give it a
try.

Using one of the 0.025 inch square pin jumpers (available relatively
inexpensively on the internet and useful anyway, I could suggest
amazon.com), you want one that has at least one socket on it,
depending on what you want to do to the other end.

Remove the plastic square header, won't fit.

Take a thin piece of heatshrink and cover the exposed pin.

It fits over the ground pin, not sure how deeply, but it will work.

Advantage here is that by using F-F you can likely use a grabber. By
using M-F you can plug it into a breadboard strip.

Harvey

Also, if by any chance anyone here in this group might have one of these Ground Clip Cables for sale (HP Part No. 00545-60105), even if in used (but in decent condition), even if it is missing the grabber side. Of course it goes without saying that a NOS cable would even be better. Either way I would definitively be interested. I already checked the e-pay place and set up a search just in case anything comes up, but I doubt someone would sell one of these cables separately. Also did various Google searches which only brought up links to older HP catalogs from the 80s where the part number of the cable is listed as an included accesory to the 545/546 probes. I could also send in a small picture of the ground clip wire if that would be of any help.

Hope the combined knowledge of this group can help me. Thanks for any leads (pun intended). Hope everyone is having a nice weekend.

Alex

On 08/26/2018 04:06 PM, Tam Hanna wrote:

why must it be the racial half arab with the anger issues who steps in.

Quote of the day!

RFI guy sent 40MB of pics. He didnt do it out of spite,

Of course not.

he did not know better.

This is a problem, but it can be (and I believe has been) addressed.

We all paid a few cents to our ISP. Its shareholders can now buy
some extra blow.

That's an issue for people on metered bandwidth, but that's not
everyone's issue with it.

He now knows better. Let us resume technical talk. He has some PCMCIA
SRAM cards - if he cannot use them, the folks at the LeCroy user group
would love to buy them.

Do the LeCroy oscilloscope use linear flash? I didn't know that.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA