Hi just a line hear hopefully without stealing the thread when repairing a HP 180 scope plug in one diode was reverse polarity to its marking compared to others in the same plug in Reversing the diode fixed the problem My question is how did this change polarity as I assume it was correct at manufacture of the plug in? otherwise the plugin should have failed end of line testing Regards Paul ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Dave Wright
Sent: 19 February 2022 15:13
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP detector ? Tom,
Thanks for the confirmation..!
And, can you comment on if / how the whisker tip geometry might affect characteristics..? I'm wondering if a 'blunt' tip at the contact point might alter performance at high frequencies...
_Dave KC6UPS
|
Re: Mixing 'n' matching S parameter test sets
The 8748A is, I believe, the S parameter test set that will work the the 8754a.
You _should_ be able to get these cheap since they won't do diddly with more modern VNAs. But try convincing an ebay seller of that!
Likewise, there are 2 normalizers that can work the the 8754a and they also _should_ be cheap since all this stuff is incredibly obsolete.
As a side note, there's an article in the HP Journal on hooking up an 8754A to a computer and various bits to automate measurements and get a bit closer to a modern VNA.
Full discloser: I have an 8754a with all the trimmings. Other than the miniVNA that's available, it's about the cheapest route to a full scale VNA for occasional use. The grease pencil bit still gives me a chuckle.
If I did a lot of RF work I'd get something newer.
Paul
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On Sat, Feb 19, 2022 at 01:07:16PM -0800, John Lyles wrote: Those are completely different generation VNAs. The 8754A is strickly a manual VNA in that if you want calibration of cables and fixtures you will need to have the storage normalizer box or you can use grease pencils on an overlay on the screen! The 85046A was made for the 8753 series of VNAs and has switching of signal direction built in, as well as four port capability. Your 8754A doesn't have the drivers to do that. Just because it has the type N connectors for the RF ports, it doesn't have the smarts to drive the switches. When 8754A was developed, it was impossible to predict what the future microprocessor-based VNA would be. The 85044A or B transmission/reflection test set will work with it as it has no switching and has only an attenuator with a knob. They can be found relatively cheap. I had a couple of them, sold one and now I use the other with my Rigol RSA-3000 series spectrum analyzer/tracking generator as a SNA (scalar network analyzer) to 3 GHz.
--
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Unix/Linux - We don't do windows
|
Re: Mixing 'n' matching S parameter test sets
Those are completely different generation VNAs. The 8754A is strickly a manual VNA in that if you want calibration of cables and fixtures you will need to have the storage normalizer box or you can use grease pencils on an overlay on the screen! The 85046A was made for the 8753 series of VNAs and has switching of signal direction built in, as well as four port capability. Your 8754A doesn't have the drivers to do that. Just because it has the type N connectors for the RF ports, it doesn't have the smarts to drive the switches. When 8754A was developed, it was impossible to predict what the future microprocessor-based VNA would be. The 85044A or B transmission/reflection test set will work with it as it has no switching and has only an attenuator with a knob. They can be found relatively cheap. I had a couple of them, sold one and now I use the other with my Rigol RSA-3000 series spectrum analyzer/tracking generator as a SNA (scalar network analyzer) to 3 GHz.
|
Yes, definitely. Very nice score.
-Dave
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On 2/19/22 16:05, Mark Bielman wrote: For $100 (free shipping) not bad at all!
------------------------------------------------------------------------
*From:* [email protected] <[email protected]> on behalf of Dave McGuire <mcguire@...>
*Sent:* Saturday, February 19, 2022 1:02 PM
*To:* [email protected] <[email protected]>
*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 6033A DOA
?? Fantastic!!
??????? -Dave
On 2/19/22 15:58, Mark Bielman wrote:
It was the power config switches! (inside the unit)
Was set for 240V. Changed to 120V and AOK!!!
That was easy. ?
Mark
------------------------------------------------------------------------
*From:* [email protected] <[email protected]> on behalf of Dave McGuire <mcguire@...>
*Sent:* Saturday, February 19, 2022 12:35 PM
*To:* [email protected] <[email protected]>
*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 6033A DOA
On 2/19/22 14:15, Mark Bielman wrote:
My HP 6033A arrived yesterday (from epay... "guaranteed to work"... HA!) and looks AOK but when powered up,
ALL LEDs light up (normal) and stay that way! (not normal)
Have not opened her up yet but looks like a uP related issue.
Anyone ever work on these? I hope it's not a ROM/GAL issue!
Might be a clue here as I do not "hear" any relay clicks... ? ?? I've not worked on one, but the schematics are available.? Being a
heavy unit that has just been shipped, the first thing that I'd check is
for something having dislodged inside; a cable, PCB, etc.
? ?? The next thing I'd check is main power.? Check the line voltage
configuration switches, and see if you get anything past the bridge
rectifiers.? Looking at the schematic, I see there are a few power rails
generated; check them all.? The +5V rail can apparently be isolated from
the rest of the unit using W2.
? ?? These are really nice power supplies; it's worth giving it some
attention.
? ???????????? -Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
|
For $100 (free shipping) not bad at all!
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?? Fantastic!!
??????? -Dave
On 2/19/22 15:58, Mark Bielman wrote:
> It was the power config switches! (inside the unit)
> Was set for 240V. Changed to 120V and AOK!!!
>
> That was easy. ?
>
> Mark
>
> ------------------------------------------------------------------------
> *From:* [email protected]
> < [email protected]> on behalf of Dave McGuire
> <mcguire@...>
> *Sent:* Saturday, February 19, 2022 12:35 PM
> *To:* [email protected]
> < [email protected]>
> *Subject:* Re: [HP-Agilent-Keysight-equipment] HP 6033A DOA
> On 2/19/22 14:15, Mark Bielman wrote:
>> My HP 6033A arrived yesterday (from epay... "guaranteed to work"... HA!)
>> and looks AOK but when powered up,
>> ALL LEDs light up (normal) and stay that way! (not normal)
>>
>> Have not opened her up yet but looks like a uP related issue.
>>
>> Anyone ever work on these? I hope it's not a ROM/GAL issue!
>>
>> Might be a clue here as I do not "hear" any relay clicks...
>
>? ?? I've not worked on one, but the schematics are available.? Being a
> heavy unit that has just been shipped, the first thing that I'd check is
> for something having dislodged inside; a cable, PCB, etc.
>
>? ?? The next thing I'd check is main power.? Check the line voltage
> configuration switches, and see if you get anything past the bridge
> rectifiers.? Looking at the schematic, I see there are a few power rails
> generated; check them all.? The +5V rail can apparently be isolated from
> the rest of the unit using W2.
>
>? ?? These are really nice power supplies; it's worth giving it some
> attention.
>
>? ???????????? -Dave
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>
>
>
>
>
>
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Fantastic!!
-Dave
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On 2/19/22 15:58, Mark Bielman wrote: It was the power config switches! (inside the unit)
Was set for 240V. Changed to 120V and AOK!!!
That was easy. ?
Mark
------------------------------------------------------------------------
*From:* [email protected] <[email protected]> on behalf of Dave McGuire <mcguire@...>
*Sent:* Saturday, February 19, 2022 12:35 PM
*To:* [email protected] <[email protected]>
*Subject:* Re: [HP-Agilent-Keysight-equipment] HP 6033A DOA
On 2/19/22 14:15, Mark Bielman wrote:
My HP 6033A arrived yesterday (from epay... "guaranteed to work"... HA!) and looks AOK but when powered up,
ALL LEDs light up (normal) and stay that way! (not normal)
Have not opened her up yet but looks like a uP related issue.
Anyone ever work on these? I hope it's not a ROM/GAL issue!
Might be a clue here as I do not "hear" any relay clicks... ?? I've not worked on one, but the schematics are available.? Being a
heavy unit that has just been shipped, the first thing that I'd check is
for something having dislodged inside; a cable, PCB, etc.
?? The next thing I'd check is main power.? Check the line voltage
configuration switches, and see if you get anything past the bridge
rectifiers.? Looking at the schematic, I see there are a few power rails
generated; check them all.? The +5V rail can apparently be isolated from
the rest of the unit using W2.
?? These are really nice power supplies; it's worth giving it some
attention.
???????????? -Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
|
It was the power config switches! (inside the unit)
Was set for 240V. Changed to 120V and AOK!!!
That was easy. ?
Mark
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Show quoted text
On 2/19/22 14:15, Mark Bielman wrote:
> My HP 6033A arrived yesterday (from epay... "guaranteed to work"... HA!)
> and looks AOK but when powered up,
> ALL LEDs light up (normal) and stay that way! (not normal)
>
> Have not opened her up yet but looks like a uP related issue.
>
> Anyone ever work on these? I hope it's not a ROM/GAL issue!
>
> Might be a clue here as I do not "hear" any relay clicks...
?? I've not worked on one, but the schematics are available.? Being a
heavy unit that has just been shipped, the first thing that I'd check is
for something having dislodged inside; a cable, PCB, etc.
?? The next thing I'd check is main power.? Check the line voltage
configuration switches, and see if you get anything past the bridge
rectifiers.? Looking at the schematic, I see there are a few power rails
generated; check them all.? The +5V rail can apparently be isolated from
the rest of the unit using W2.
?? These are really nice power supplies; it's worth giving it some
attention.
???????????? -Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Re: HP 5613A Wanted IC HP part # 1820-2312 misc ic Manufacture part # 1DA9-2902
I have a 5316A with option 1 and 3 that was working the last time I used it if you are interested.? I am located on the east coast of Canada.
Paul.
|
Yes, I also did not understand his initial request either. However, I did not appreciate your reply at the time as well. 73 - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
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-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Dave McGuire Sent: Saturday, February 19, 2022 3:25 PM To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed Could be. ;) The OP sent a terse and rude message with a picture, saying "I need this". Nothing else. I mean, I'm sorry, but I'm not going to interrupt my day to help when the request is made in such a way. But to his credit, he rephrased and re-posted it, flawlessly, and is now redeemed in my book. So I don't have to find him and slash his tires the next time I'm in NJ. ;) -Dave On 2/19/22 15:22, Mike Feher wrote: Sorry, sometimes I miss subtle sarcasm, or even jokes. Must be my
Hungarian upbringing, HI. 73 - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Dave McGuire
Sent: Saturday, February 19, 2022 3:05 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
Exactly. :)
-Dave
On 2/18/22 23:03, Jim Ford wrote:
Dave just put into words the whole thought. Right, Dave?
Jim Ford
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Mike Feher <n4fs@...>
Date: 2/18/22 7:48 PM (GMT-08:00)
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
I do not get it. What is he looking for and how did Dave fix it? 73 -
Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Dave McGuire
Sent: Friday, February 18, 2022 10:22 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
On February 18, 2022 10:08:38 PM "Andrew Curlik" <kb2lmn@...> wrote:
> I¡¯m looking for the following IC.
Wow.
"HI everyone, I'm looking for the IC in the attached photo to fix
one of my instruments. Would anyone happen to have one to spare? Will
pay a reasonable price, swap, etc. Thanks, I hope everyone is having
a nice Friday night."
There. Fixed that for ya.
Sheesh.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
-- Dave McGuire, AK4HZ New Kensington, PA
|
On 2/19/22 14:15, Mark Bielman wrote: My HP 6033A arrived yesterday (from epay... "guaranteed to work"... HA!) and looks AOK but when powered up,
ALL LEDs light up (normal) and stay that way! (not normal)
Have not opened her up yet but looks like a uP related issue.
Anyone ever work on these? I hope it's not a ROM/GAL issue!
Might be a clue here as I do not "hear" any relay clicks... I've not worked on one, but the schematics are available. Being a heavy unit that has just been shipped, the first thing that I'd check is for something having dislodged inside; a cable, PCB, etc. The next thing I'd check is main power. Check the line voltage configuration switches, and see if you get anything past the bridge rectifiers. Looking at the schematic, I see there are a few power rails generated; check them all. The +5V rail can apparently be isolated from the rest of the unit using W2. These are really nice power supplies; it's worth giving it some attention. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
|
Could be. ;) The OP sent a terse and rude message with a picture, saying "I need this". Nothing else. I mean, I'm sorry, but I'm not going to interrupt my day to help when the request is made in such a way.
But to his credit, he rephrased and re-posted it, flawlessly, and is now redeemed in my book. So I don't have to find him and slash his tires the next time I'm in NJ. ;)
-Dave
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Show quoted text
On 2/19/22 15:22, Mike Feher wrote: Sorry, sometimes I miss subtle sarcasm, or even jokes. Must be my Hungarian upbringing, HI. 73 - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave McGuire
Sent: Saturday, February 19, 2022 3:05 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
Exactly. :)
-Dave
On 2/18/22 23:03, Jim Ford wrote:
Dave just put into words the whole thought. Right, Dave?
Jim Ford
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Mike Feher <n4fs@...>
Date: 2/18/22 7:48 PM (GMT-08:00)
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
I do not get it. What is he looking for and how did Dave fix it? 73 -
Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Dave McGuire
Sent: Friday, February 18, 2022 10:22 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
On February 18, 2022 10:08:38 PM "Andrew Curlik" <kb2lmn@...> wrote:
> I¡¯m looking for the following IC.
Wow.
"HI everyone, I'm looking for the IC in the attached photo to fix
one of my instruments. Would anyone happen to have one to spare? Will
pay a reasonable price, swap, etc. Thanks, I hope everyone is having a
nice Friday night."
There. Fixed that for ya.
Sheesh.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Sorry, sometimes I miss subtle sarcasm, or even jokes. Must be my Hungarian upbringing, HI. 73 - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
toggle quoted message
Show quoted text
-----Original Message----- From: [email protected] < [email protected]> On Behalf Of Dave McGuire Sent: Saturday, February 19, 2022 3:05 PM To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed Exactly. :) -Dave On 2/18/22 23:03, Jim Ford wrote: Dave just put into words the whole thought. Right, Dave?
Jim Ford
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Mike Feher <n4fs@...>
Date: 2/18/22 7:48 PM (GMT-08:00)
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
I do not get it. What is he looking for and how did Dave fix it? 73 -
Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-----Original Message-----
From: [email protected]
<[email protected]> On Behalf Of Dave McGuire
Sent: Friday, February 18, 2022 10:22 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
On February 18, 2022 10:08:38 PM "Andrew Curlik" <kb2lmn@...> wrote:
> I¡¯m looking for the following IC.
Wow.
"HI everyone, I'm looking for the IC in the attached photo to fix
one of my instruments. Would anyone happen to have one to spare? Will
pay a reasonable price, swap, etc. Thanks, I hope everyone is having a
nice Friday night."
There. Fixed that for ya.
Sheesh.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
-- Dave McGuire, AK4HZ New Kensington, PA
|
Seems to be a full service manual.
Good luck looks like a nice but darn smart power supply. Smart = trouble Regards Paul WB8TSL
|
Exactly. :)
-Dave
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On 2/18/22 23:03, Jim Ford wrote: Dave just put into words the whole thought.? ?Right, Dave?
Jim Ford
Sent from my T-Mobile 4G LTE Device
-------- Original message --------
From: Mike Feher <n4fs@...>
Date: 2/18/22 7:48 PM (GMT-08:00)
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
I do not get it. What is he looking for and how did Dave fix it? 73 - Mike
Mike B. Feher, N4FS
89 Arnold Blvd.
Howell NJ 07731
848-245-9115
-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Dave McGuire
Sent: Friday, February 18, 2022 10:22 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP ic needed
On February 18, 2022 10:08:38 PM "Andrew Curlik" <kb2lmn@...> wrote:
> I¡¯m looking for the following IC.
? Wow.
? "HI everyone, I'm looking for the IC in the attached photo to fix one of my instruments. Would anyone happen to have one to spare? Will pay a reasonable price, swap, etc. Thanks, I hope everyone is having a nice Friday night."
? There.? Fixed that for ya.
? Sheesh.
????????? -Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
--
Dave McGuire, AK4HZ
New Kensington, PA
|
Looking for power supply schematic of Agilent 83751A
Hello
? Does anyone know where I can find the power supply schematic of Agilent 83751A or B (Synthesized Sweeper, 2 - 20 GHz) ?? I downloaded the service guide, it only contains block diagram (very helpful), but no detailed schematic. The power supply stopped working, I need to repair it.
? Symptom:? Could not power on. Rear panel 2 LEDs all off. Internal standby LED is on. Short A3W2 Pin 16 to ground, no response.
Thanks
Lin
|
Re: HP 5613A Wanted IC HP part # 1820-2312 misc ic Manufacture part # 1DA9-2902
On 2/19/22 09:33, Andrew Curlik wrote: Im going to give this another shot as I screwed up the first try, sorry guys!
I¡¯m looking purchase a HP IC part # 1820-2312, IC Misc, Manufacturer Code 28480, Manufacture Part # 1DA9-2902 used in my HP 5316A Universal Counter.
If anyone has one I would appreciate it just let me know price shipped if shipping required. I'm sorry to have to tell you that you are probably stuck on this part. It is the "MRC" (Multi-Register Counter) chip, which is custom. Several people have looked for these over the years to resurrect 5315/5316 counters, and to my knowledge there has not been a solution other than to find a donor unit. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
|
Hi Group, My HP 6033A arrived yesterday (from epay... "guaranteed to work"... HA!) and looks AOK but when powered up, ALL LEDs light up (normal) and stay that way! (not normal) Have not opened her up yet but looks like a uP related issue. Anyone ever work on these? I hope it's not a ROM/GAL issue! Might be a clue here as I do not "hear" any relay clicks...  Mark
|
Re: HP 5613A Wanted IC HP part # 1820-2312 misc ic Manufacture part # 1DA9-2902
What is the part? Is it an op amp etc....
The Manufactures code is the HP CAGE number, so no help
Maybe there is a substitute.
Wally KC9INK
|
Buy ESA Spectrum Analyzer Noise Source Driver?
Hi all,
I'm interested to buy a E4401-60123 A7A13 Noise Source Driver board for my E4407B.
If you have a board for sale or know where to find one, please let me know. I've googled around without any luck and searched eBay as well.
Best regards
Marcus
|
Re: HP 5613A Wanted IC HP part # 1820-2312 misc ic Manufacture part # 1DA9-2902
Hi Andy ¨C ? There are several on eBay if no-one has a parts unit. Here is one pretty reasonable . There is another for the same price for about half the shipping, but not fully tested. Then you can keep your old one for spares or take the part you need from an eBay one. Regards ¨C Mike ? Mike B. Feher, N4FS 89 Arnold Blvd. Howell NJ 07731 848-245-9115 ?
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From: [email protected] < [email protected]> On Behalf Of Andrew Curlik Sent: Saturday, February 19, 2022 9:34 AM To: [email protected]Subject: [HP-Agilent-Keysight-equipment] HP 5613A Wanted IC HP part # 1820-2312 misc ic Manufacture part # 1DA9-2902 ? Im going to give this another shot as I screwed up the first try, sorry guys!? I¡¯m looking purchase a HP IC part # 1820-2312, IC Misc, Manufacturer Code 28480, Manufacture Part # 1DA9-2902 used in my HP 5316A Universal Counter.?? If anyone has one I would appreciate it just let me know price shipped if shipping required. ? ? Thanks, Andrew Curlik 1315 Birch Hill Rd Mountainside, NJ 07092
|
Paul Bicknell
Dave McGuire