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Date
Re: A homemade diode power sensor for HP meters

 

On Wed, 9 Apr 2025, Lynn C via groups.io wrote:

You were lucky to catch that very rare moment it worked. I don't need those
connectors much -- have a bunch of dead sensors that I can use to build my
own calibrator and those already have the entire driving circuitry in them
so I don't have to build it from scratch. Just tried to get some to have
them in stock, just in case. I actually don't see any other use for them
except building a calibrator so not a big loss...

I just purchased 12 pcs without difficulty using a credit card for payment.

Lynn C. KA7FPH

On Wed, Apr 9, 2025 at 3:03?PM Sergey Kubushyn via groups.io <ksi=
[email protected]> wrote:

On Wed, 9 Apr 2025, David Feldman via groups.io wrote:

They were $4.12 when I added 10 to my cart. Then, when tried to checkout
they suddenly became $9.15 and "We can't process Credit Crd payments at
this
time. Please try again later".

Newark became a buggy horror, I was not been able to purchase ANYTHING from
them for last 2 years or so -- there was ALWAYS an issue and their site
never worked since something like couple of years ago.

Do NOT buy anything from them, don't support the incompetence.

This is about the Amphenol Tuchel female connector discussed in this
thread's history (used by HP for panel and device mounting the 8480 series
power sensors and 43x series power meters.)

This posting (9 April 2025) probably has limited utility and will at
some point become moot, but wanted pass this along in case anyone was
interested in homebrewing HP power sensor or power meter, as the ebay
listing (offering the same connector) cited previously in the thread
disappeared some time ago.

I located stock (in US distributor Newark) a version of the female panel
connector cited in the discussion thread. They appear to be a "close out"
(from time to time, Newark reprices an item in what appears to be an
end-of-stock circumstance (the notation includes "available in quantity
shown".)

This connector is female, panel mount, with solder cup pins (12 pins.)
There are other variants of the same connector type (solder pins, etc.)

The part appears to show stock of 82 pieces (in US) at price of USD 4.12
today 9 April 2025.



Amphenol-Sine has online a data catalog which includes mechanical
drawings for this specific connector:



See page 22 for PCB layout applicable to the 12 pin thru-hole version
(PNG captured from that page is attached).

I rotated the (above) drawing of the 12 pin connector by 37.5 degrees
counter-clockwise - using powerpoint - to bring the key down to the bottom
of the connector, matching how it is used in the HP devices - and scaled it
(pins E and K are separated by 9.0 mm) so that I could use the circles
representing the 12 pins as a position guide for corresponding holes in a
PC board layout (idea is a small PCB that adapts the connector's rear pins
to a 2x4 2.54mm header for mating to a prototyping board.) Somewhat
brute-force but this was a last-minute add to a PCB layout that was headed
out for fab.

I ordered and received a couple of these connectors and they appear to
mate with the typical HP sensor cable without difficulty. The panel
mounting nut (ring) - included - would require a 2-pin hand tool to tighten.

I have a similar question as most-recent posting to this thread asked -
about whether this project got built and what the experience was!

Dave
---
*
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. *
*
Re: A homemade diode power sensor for HP meters

 

On Wed, 9 Apr 2025, David Feldman via groups.io wrote:

They used to be OK until some time in the past when they got totally broken
and never recovered ever since.

They are not alone though -- e.g. Keysight (I have numerous calibration
agreements with them) was also broken several years ago and never fixed ever
since. Same with Tektronix.

Hi Sergey,

I too have had system problems with Newark online ordering in the past - they are not my favorite, but sometimes low-cost items appear that I can use (and these prices appear in octopart.com search engine, so that is how I found this item). Also, sometimes when I have ordered a low-cost item and went back to order more a few days later, the price had increased.

Before giving up, maybe try other browser on your computer? I tried with other browser and was able to reach "check out as guest" without unexpected price change.

Good luck!

Dave
---
*
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. *
*
Re: A homemade diode power sensor for HP meters

 

I just purchased 12 pcs without difficulty using a credit card for payment.

Lynn C. KA7FPH

On Wed, Apr 9, 2025 at 3:03?PM Sergey Kubushyn via <ksi=[email protected]> wrote:
On Wed, 9 Apr 2025, David Feldman via wrote:

They were $4.12 when I added 10 to my cart. Then, when tried to checkout
they suddenly became $9.15 and "We can't process Credit Crd payments at this
time. Please try again later".

Newark became a buggy horror, I was not been able to purchase ANYTHING from
them for last 2 years or so -- there was ALWAYS an issue and their site
never worked since something like couple of years ago.

Do NOT buy anything from them, don't support the incompetence.

> This is about the Amphenol Tuchel female connector discussed in this thread's history (used by HP for panel and device mounting the 8480 series power sensors and 43x series power meters.)
>
> This posting (9 April 2025) probably has limited utility and will at some point become moot, but wanted pass this along in case anyone was interested in homebrewing HP power sensor or power meter, as the ebay listing (offering the same connector) cited previously in the thread disappeared some time ago.
>
> I located stock (in US distributor Newark) a version of the female panel connector cited in the discussion thread. They appear to be a "close out" (from time to time, Newark reprices an item in what appears to be an end-of-stock circumstance (the notation includes "available in quantity shown".)
>
> This connector is female, panel mount, with solder cup pins (12 pins.)? There are other variants of the same connector type (solder pins, etc.)
>
> The part appears to show stock of 82 pieces (in US) at price of USD 4.12 today 9 April 2025.
>
>
>
> Amphenol-Sine has online a data catalog which includes mechanical drawings for this specific connector:
>
>
>
> See page 22 for PCB layout applicable to the 12 pin thru-hole version (PNG captured from that page is attached).
>
> I rotated the (above) drawing of the 12 pin connector by 37.5 degrees counter-clockwise - using powerpoint - to bring the key? down to the bottom of the connector, matching how it is used in the HP devices - and scaled it (pins E and K are separated by 9.0 mm) so that I could use the circles representing the 12 pins as a position guide for corresponding holes in a PC board layout (idea is a small PCB that adapts the connector's rear pins to a 2x4 2.54mm header for mating to a prototyping board.) Somewhat brute-force but this was a last-minute add to a PCB layout that was headed out for fab.
>
> I ordered and received a couple of these connectors and they appear to mate with the typical HP sensor cable without difficulty. The panel mounting nut (ring) - included - would require a 2-pin hand tool to tighten.
>
> I have a similar question as most-recent posting to this thread asked - about whether this project got built and what the experience was!
>
> Dave
>
>
>
>
>
>

---
*
*? KSI@home? ? KOI8 Net? < >? The impossible we do immediately.? *
*? Las Vegas? ?NV, USA? ?< >? Miracles require 24-hour notice.? ?*
*
Re: A homemade diode power sensor for HP meters

 

Hi Sergey,

I too have had system problems with Newark online ordering in the past - they are not my favorite, but sometimes low-cost items appear that I can use (and these prices appear in octopart.com search engine, so that is how I found this item). Also, sometimes when I have ordered a low-cost item and went back to order more a few days later, the price had increased.

Before giving up, maybe try other browser on your computer? I tried with other browser and was able to reach "check out as guest" without unexpected price change.

Good luck!

Dave
Re: A homemade diode power sensor for HP meters

 

On Wed, 9 Apr 2025, David Feldman via groups.io wrote:

They were $4.12 when I added 10 to my cart. Then, when tried to checkout
they suddenly became $9.15 and "We can't process Credit Crd payments at this
time. Please try again later".

Newark became a buggy horror, I was not been able to purchase ANYTHING from
them for last 2 years or so -- there was ALWAYS an issue and their site
never worked since something like couple of years ago.

Do NOT buy anything from them, don't support the incompetence.

This is about the Amphenol Tuchel female connector discussed in this thread's history (used by HP for panel and device mounting the 8480 series power sensors and 43x series power meters.)

This posting (9 April 2025) probably has limited utility and will at some point become moot, but wanted pass this along in case anyone was interested in homebrewing HP power sensor or power meter, as the ebay listing (offering the same connector) cited previously in the thread disappeared some time ago.

I located stock (in US distributor Newark) a version of the female panel connector cited in the discussion thread. They appear to be a "close out" (from time to time, Newark reprices an item in what appears to be an end-of-stock circumstance (the notation includes "available in quantity shown".)

This connector is female, panel mount, with solder cup pins (12 pins.) There are other variants of the same connector type (solder pins, etc.)

The part appears to show stock of 82 pieces (in US) at price of USD 4.12 today 9 April 2025.



Amphenol-Sine has online a data catalog which includes mechanical drawings for this specific connector:



See page 22 for PCB layout applicable to the 12 pin thru-hole version (PNG captured from that page is attached).

I rotated the (above) drawing of the 12 pin connector by 37.5 degrees counter-clockwise - using powerpoint - to bring the key down to the bottom of the connector, matching how it is used in the HP devices - and scaled it (pins E and K are separated by 9.0 mm) so that I could use the circles representing the 12 pins as a position guide for corresponding holes in a PC board layout (idea is a small PCB that adapts the connector's rear pins to a 2x4 2.54mm header for mating to a prototyping board.) Somewhat brute-force but this was a last-minute add to a PCB layout that was headed out for fab.

I ordered and received a couple of these connectors and they appear to mate with the typical HP sensor cable without difficulty. The panel mounting nut (ring) - included - would require a 2-pin hand tool to tighten.

I have a similar question as most-recent posting to this thread asked - about whether this project got built and what the experience was!

Dave




---
*
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. *
*
Re: A homemade diode power sensor for HP meters

 

I can't speak to having built the project, but... I just took the precaution of ordering a dozen of these connectors for my stash. Considering how widely they were used in HP gear, and how heavily discounted they are (AND their likely disappearance from this plane of existence), I figure I should keep some around.

??? That still leaves Newark with 70 pieces. Get 'em while you can!

On 09-Apr-25 13:15, David Feldman via groups.io wrote:
This is about the Amphenol Tuchel female connector discussed in this thread's history (used by HP for panel and device mounting the 8480 series power sensors and 43x series power meters.)

This posting (9 April 2025) probably has limited utility and will at some point become moot, but wanted pass this along in case anyone was interested in homebrewing HP power sensor or power meter, as the ebay listing (offering the same connector) cited previously in the thread disappeared some time ago.

I located stock (in US distributor Newark) a version of the female panel connector cited in the discussion thread. They appear to be a "close out" (from time to time, Newark reprices an item in what appears to be an end-of-stock circumstance (the notation includes "available in quantity shown".)

This connector is female, panel mount, with solder cup pins (12 pins.) There are other variants of the same connector type (solder pins, etc.)

The part appears to show stock of 82 pieces (in US) at price of USD 4.12 today 9 April 2025.



Amphenol-Sine has online a data catalog which includes mechanical drawings for this specific connector:



See page 22 for PCB layout applicable to the 12 pin thru-hole version (PNG captured from that page is attached).

I rotated the (above) drawing of the 12 pin connector by 37.5 degrees counter-clockwise - using powerpoint - to bring the key down to the bottom of the connector, matching how it is used in the HP devices - and scaled it (pins E and K are separated by 9.0 mm) so that I could use the circles representing the 12 pins as a position guide for corresponding holes in a PC board layout (idea is a small PCB that adapts the connector's rear pins to a 2x4 2.54mm header for mating to a prototyping board.) Somewhat brute-force but this was a last-minute add to a PCB layout that was headed out for fab.

I ordered and received a couple of these connectors and they appear to mate with the typical HP sensor cable without difficulty. The panel mounting nut (ring) - included - would require a 2-pin hand tool to tighten.

I have a similar question as most-recent posting to this thread asked - about whether this project got built and what the experience was!

Dave



--
Bruce Lane, ARS KC7GR,
kyrrin@...
"Quando Omni Flunkus Moritati" (Red Green)
Re: A homemade diode power sensor for HP meters

 

This is about the Amphenol Tuchel female connector discussed in this thread's history (used by HP for panel and device mounting the 8480 series power sensors and 43x series power meters.)

This posting (9 April 2025) probably has limited utility and will at some point become moot, but wanted pass this along in case anyone was interested in homebrewing HP power sensor or power meter, as the ebay listing (offering the same connector) cited previously in the thread disappeared some time ago.

I located stock (in US distributor Newark) a version of the female panel connector cited in the discussion thread. They appear to be a "close out" (from time to time, Newark reprices an item in what appears to be an end-of-stock circumstance (the notation includes "available in quantity shown".)

This connector is female, panel mount, with solder cup pins (12 pins.) There are other variants of the same connector type (solder pins, etc.)

The part appears to show stock of 82 pieces (in US) at price of USD 4.12 today 9 April 2025.



Amphenol-Sine has online a data catalog which includes mechanical drawings for this specific connector:



See page 22 for PCB layout applicable to the 12 pin thru-hole version (PNG captured from that page is attached).

I rotated the (above) drawing of the 12 pin connector by 37.5 degrees counter-clockwise - using powerpoint - to bring the key down to the bottom of the connector, matching how it is used in the HP devices - and scaled it (pins E and K are separated by 9.0 mm) so that I could use the circles representing the 12 pins as a position guide for corresponding holes in a PC board layout (idea is a small PCB that adapts the connector's rear pins to a 2x4 2.54mm header for mating to a prototyping board.) Somewhat brute-force but this was a last-minute add to a PCB layout that was headed out for fab.

I ordered and received a couple of these connectors and they appear to mate with the typical HP sensor cable without difficulty. The panel mounting nut (ring) - included - would require a 2-pin hand tool to tighten.

I have a similar question as most-recent posting to this thread asked - about whether this project got built and what the experience was!

Dave

amphenol-sine-tuchel-connector.png

Re: where to find a manual for the older 6268A? (plenty out there for the B)

 

On 4/8/25 09:44, Peter Brown wrote:
Have scanned (hopefully) relevant pages here - ?Files? -> A temporary directory for photographs and help relating to emails and posting? -> HP 6268A
Thanks, I'm looking those pages over, and the diagrams 3-2, 3-3 confirm I guessed correctly for the jumpers to allow front panel meters to work.

--
John Griessen
File /All HP, Agilent and Keysight instruments in folders by part numbers/000 to 999/437B High Performance Single Channel Average Power Meter/HP 437B Service Manual - Including Schematics and Service Notes.pdf uploaded #file-notice

Group Notification
 

The following items have been added to the Files area of the [email protected] group.

By: Samudra N3RDX S21X <samudra.haque@...>

Description:
thanks to Boat Anchor Manual Archive - thought it is relevant to those who worship the HP 437B RF power meter. Happy Hunting. https://bama.edebris.com/manuals/hp/437b
HP 4193A Vector Impedance Meter - Looking for info on the special Adjustment Board

 

I have a working 4193A with probe. I went through (nearly) all adjustments, but gut stuck on the ALC Ref Voltage Adjustment (A13) and the IF BPF Gain/Phase Adjustment (A12). Both adjustments call for a special Adjustment Board 04193-66564. I was not able to find any information on that extender board that obviously has switch on it. I would appreciate any information on that board. While all adjustments performed so far were right on the money, I really would like to get everything set up correctly.
?
Thanks, Herbert
Re: E4402B SA power problem - need DC socket connections

 

Quick update.? I extracted the psu pcb and started testing cap ESRs working forward from the main ac input.
The main caps after the bridge are a pair of 680uF/200V devices in series.? No balancing resistors.
One cap tests as just an air-gap, which would explain much!? Good Nichicon replacements for these two caps are on order as are replacements for the Rifa X2 and Y2 rated caps nearby.
I am just astounded that the following stages could still manage to produce acceptable power rails, even for a few minutes, given that their input is an unsmoothed but rectified 300V sinewave!
I'll report back once I have the new caps installed.
-Jeremy
?
Re: 54831M Booting Problem

 

Huh, thats interesting.? What TiN describes is pretty much exactly what is happening with my scope.? Before I try and track down a possible hardware problem I am going to try and swap in a new drive (possibly attempting to upgrade to XP in the process).? Since I have the recovery discs, I'm hoping I should be able to track down the drivers I need somewhere in that file folder system.? Although, based on what I read in TiN's post, some kind of NVRAM? is my next thing to hunt for since I have already checked most cables and connectors which appear fine.
Re: where to find a manual for the older 6268A? (plenty out there for the B)

 

I have a manual on fiche - March 1978 rev 1 06268-90001 (paper)? 5951-6173 (fiche)
?
Have scanned (hopefully) relevant pages here - ?Files? -> A temporary directory for photographs and help relating to emails and posting? -> HP 6268A
?
If no one on the group can find the whole thing scanned online then I can scan it properly and post
?
Peter
Re: 54831M Booting Problem

 

Hi zgoode,
I probably won't help much but I can only point you to a very similar problem with a Tektronix scope. Please see this thread
https://www.eevblog.com/forum/testgear/tek-csa7404-repair-project/
in the TiN message section: NVRAM Failure (Scope boots, OS boots, but TekScope application hangs on welcome splash screens, front panel not responding
Thanks,
Wojciech
HP 4957A Protocol Analyzer - looking for disks

 

Hey all, I'm playing with an HP 4957A protocol analyzer and looking for some of the software that came with the ISDN/T1 pods. I know CuriousMarc has some of the standard disks but curious if anyone here has disks for some of the other pods, such as the HP 18281A BRI ISDN pod?
?
Also looking for software/restore disks for Agilent J6803B Network analyzer as well.
?
Thanks,
?
Jeff
54831M Booting Problem

 

I'm working on restoring my 54831M, but have run into a weird error.? With the original Win95 (maybe 98, don't remember which one its on), I can't get it to boot past the Infinium splash screen.? I have tried using the OS recovery CD that is Agilent software version 2.20, but that is giving me the same result.
?
It appears to boot into Windows alright, but does not advance past an infinium splash screen, no menu, nada.? The PS2 keyboard I am using freezes up, even the numlock/capslock go unresponsive.? Switching the drive over from my 54832B allowed it to boot into XP and I do see waveform acquisition data at least (although it is very slow/laggy to navigate).? The front panel buttons and lights do absolutely nothing here even within the selftest menu of the Win XP 54832B drive, and I am not sure if it is a Win XP driver problem or a hardware problem (since I cannot test it in 95).? Are there any drivers I maybe need for Win XP that differ from the 54831M and the 54832B which I don't have?? Or is there something else likely to be the problem here.? I'm thinking there might be a chance the HDD is cooked, although it seems to test ok using a USB IDE adapter in Win 10?
where to find a manual for the older 6268A? (plenty out there for the B)

 

I came across one and it still works, but...

Not sure I have the strapping right on the back terminal strip.

G1Q-HP-6268A-DC-PS-03a.jpg

Re: 8591E CAL AMPTD failure

 

Yves, Excellent! I’m going to need to find some connectors I have the caps and resistors needed.?

Andrew
Re: Manuals for an HP3456B DMM?

 

开云体育

Hi.

It's worth checking the DC power rails for the GPIB logic section.? It's possibly isolated from all the "measurement" analogue/digital stuff.

My old 3438A had "a lot" of 50Hz ripple on the GPIB digital 5V, that was resetting the logic/cpu every 20ms!

One very bad cap and an open cct rectifier diode replaced, and that all works fine now.

I just need to replace the front/rear input select switch, as that has frozen in the "rear input" position.?? But that's not too much of an inconvenience, yet.

Regards.

Dave 'KBV
Re: Manuals for an HP3456B DMM?

 

Regarding the meter that only returns values, could it be that the ‘talk only’ switch is set and therefore the instrument is not accepting commands.

As was mentioned earlier, it could simply be a dip switch setting or the switch needs cleaning - always try the simple stuff first...

Hope it helps.
Regards
Nigel

Sent from my iPad by banging a nail into a piece of wood...

On 7 Apr 2025, at 00:29, Chuck Harris via groups.io <cfharris@...> wrote:

And deoxit the address dip switches. They tend
to take a set...

-Chuck Harris


On Sun, 6 Apr 2025 16:45:28 -0400 "Steve Hendrix"
<SteveHx@...> wrote:
On 2025-04-06 4:42 PM, BobH via groups.io wrote:
My first guess is that one of the GPIB buffer chips is dead, but
will check the simpler stuff first.
Could be, but I'd try some deoxit on the connectors first, especially
if it hasn't been used in a while.

Steve Hendrix
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