Re: A homemade diode power sensor for HP meters
Solder-tail version of the same connector, also from Newark, also at unusual unit price.
Roy - if this is contrary to group guidelines, please accept my apology (I presumed that this would be of interest due to the very specialized nature of the parts and the prior reference to an ebay seller being defunct.)
Below is a listing of the file names I retrieved using internet archive during my brief review of the thread this morning (anyone could do this, but of course it will be convenient to have them cached online).
I've not uploaded them anywhere at this point - they can be retrieved using internet archive to search on each of the (defunct) URLs that were in the postings from earlier times.
If someone can tell me where these files should be uploaded, I'll be happy to do that.
(DOS command of the directory where I put the files retrieved)
Directory of D:\848x homebrew power sensor
04/10/2025 05:22 PM <DIR> . 04/10/2025 05:22 PM <DIR> .. 04/10/2025 10:54 AM 2,658,520 08484-90019-PowerSensor.pdf 04/10/2025 11:01 AM 5,261,326 1975-10.pdf 04/10/2025 10:51 AM 4,021,004 20181117_170657.jpg 04/10/2025 10:50 AM 3,350,675 20181117_173101.jpg 04/10/2025 10:52 AM 234,284 8481schem.png 04/10/2025 10:55 AM 11,393,180 8484a.pdf 04/10/2025 10:56 AM 211,615 HP 11683A H01 ops_service.pdf 04/10/2025 11:03 AM 6,653,962 WTG_RefGuide_F1128_sm_web.pdf
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Re: The care of RF connectors
so are you suggesting the freon or the isopropyl?alcohol here?
--Eric _________________________________________ Eric Garner
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HP Application Note AN 326 covers this, as well as several other HP documents.
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Re: A homemade diode power sensor for HP meters
On Wed, Apr 9, 2025 at 01:15 PM, David Feldman wrote:
This is about the Amphenol Tuchel female connector discussed in this thread's history
Thanks for the catalog link, and the wiring diagram.
?
Yet... and IMO... II really wish people wouldn't post stuff... like 'bargains' ...on parts for the project under discussion.
It brings about bad behavior:
...like me winging
...like people hording .... why?... because they don't need them... but someone else might?
...like suppliers increasing prices
?
If one surmises I need a reminder that people can do what they want.
Please save the forum space... I see people doing it all the time.
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Re: The care of RF connectors
HP Application Note AN 326 covers this, as well as several other HP documents.
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Re: A homemade diode power sensor for HP meters
Thanks for creating the file archive.? Where can I access the file archive created on this topic?
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Re: A homemade diode power sensor for HP meters
I went back to the start of the thread to capture local copies of the various cited references. Most of the links are dead, however, internet archive wayback machine got me to almost all of them, so I have the files cached here now (mostly commercial reference material from HP and Boonton, along with Tobias' hand drawn schematics (I don't believe Tobias published schematics after his first few drafts, and don't know if he maintains a repository anywhere.)
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Re: A homemade diode power sensor for HP meters
Matt - I just saw the same thing (the page updated a few seconds after initially rendering). Their web site has extraordinary and severe design problems (extreme case of "low bid HTML".)
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Re: A homemade diode power sensor for HP meters
Last time I ordered from them was in 2018 and they got the sales tax wrong.? At least they refunded the difference without a fight.
So, I placed an order for 4 connectors at $4.12.? It seems to have gone through and they now show 78 available.? I wonder what happened to the other orders!
Orin.
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Just clicking on that link to the connector that David Feldman posted makes me never want to do business with that company.? It first shows a unit price of $4.12, then after a second or two the price jumps to $9.15.
And they still show 82 connectors in stock.
?
I frequently have checked Newark for parts, and perhaps even have ordered from them a few times over the years.? After seeing this, I won't be making that mistake again.? Thanks for the warnings!
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The care of RF connectors
I realize that everyone has their own more-or-less “witches brew” for dealing with RF connectors but this is a nice general treatment on them from a reputable source.
https://blog.minicircuits.com/care-handling-of-rf-microwave-connectors/
Greg
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Re: A homemade diode power sensor for HP meters
On Wednesday 09 April 2025 10:08:13 pm Dave McGuire via groups.io wrote: ? ?Yay, suits, let's farm that web development out to India for a dollar a day, what could go wrong?
On one of the many bookshelves here I have "In Search Of Excellence" sitting right next to "Fired For Success"... :-) -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin
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Re: A homemade diode power sensor for HP meters
Just clicking on that link to the connector that David Feldman posted makes me never want to do business with that company.? It first shows a unit price of $4.12, then after a second or two the price jumps to $9.15.
And they still show 82 connectors in stock.
?
I frequently have checked Newark for parts, and perhaps even have ordered from them a few times over the years.? After seeing this, I won't be making that mistake again.? Thanks for the warnings!
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HP83732A/HP83712B ALC correction data
Hi,
?
the HP83732A and HP83712B signal generators apparently have a built-in ALC correction that apparently can be modified by the user.
The programming manual documents this error message:
Else, there is no documentation about the CAL-command.
Does anybody know or suspect how the seven parameters are to be interpreted? These must define some kind of level correction curve.
Background: I have a dead low band detector and obviously the homebrew replacement has a somewhat different characteristic.
Also, the HP calibration software is not available. It would be nice to get the box calibrated again.
?
Tom DG8SAQ
?
P.S. Is there really nobody out there who has an HP83712B and made a backup copy of the EPROMs?
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Re: A homemade diode power sensor for HP meters
On 4/9/25 17:29, Sergey Kubushyn wrote: 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. I tried to place an order through Keysight Find-A-Part yesterday. I've placed dozens of orders on my account over the years. This time, when I click "add to cart" on a part, I get a dialog box that says my account isn't registered to purchase parts, and gives me a link to register my account with that service. When I click on that, it takes me to a page that says my account is already registered for that service. Today they entered the order for me manually. Yay, suits, let's farm that web development out to India for a dollar a day, what could go wrong? -Dave -- Dave McGuire, AK4HZ New Kensington, PA
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Re: A homemade diode power sensor for HP meters
Hi all,
?
I have not reread the entire thread but I know that this connector fits:
There is also a gold plated version.
?
Best regards
Marcus
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Re: A homemade diode power sensor for HP meters
???
??? I checked out using my Newark net-30 account. It didn't give me any trouble at all, and the price stayed stable ($4 and change each).
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On 09-Apr-25 14:53, Sergey Kubushyn wrote: On Wed, 9 Apr 2025, David Feldman via groups.io wrote:
OK, it worked when checking out as guest although not without issues. Total disaster if you try do this being logged into your account (not just price jumping to $9.15).
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.?? * *
-- Bruce Lane, ARS KC7GR, kyrrin@... "Quando Omni Flunkus Moritati" (Red Green)
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Re: A homemade diode power sensor for HP meters
On Wed, 9 Apr 2025, David Feldman via groups.io wrote: OK, it worked when checking out as guest although not without issues. Total disaster if you try do this being logged into your account (not just price jumping to $9.15). 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. * *
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Re: A homemade diode power sensor for HP meters
On Wed, 9 Apr 2025, Sergey Kubushyn wrote: BTW, it also depends on where you are as everything is going via some proxy (CDN) like Akamai/Imperva/Cloudfare/whatever these days and those are falling apart. There was couple of weeks when I was not even able to login into my Cox Business account to pay my bill -- it's been telling me I'm trying to login from abroad (they used/use Imperva and that routed me via Israel) and they don't allow that. 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. * *
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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. * *
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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. * *
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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
toggle quoted message
Show quoted text
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.? ?*
*
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