Re: HP-8566B, HP-8566A used without display
On 10/16/2015 10:09 AM, John Griessen john@... [hp_agilent_equipment] wrote: You might look into a TFT display replacement. OK. I don't have an 8566B or a display for it. The question was, Does anyone use
the GPIB port to get SA sweeps and is it practical, or is there much other settings info
that would be missing and make it hellish to do?
I've done it with a 70K-series SA, it's easy to do. I believe the command set is similar to that of the 8566. The 70900 LO/controller has an "8566 compatibility mode" for ATE use. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
|
Re: HP-8566B, HP-8566A used without display
On 10/15/2015 04:48 PM, sgm460122@... [hp_agilent_equipment] wrote: You might look into a TFT display replacement. OK. I don't have an 8566B or a display for it. The question was, Does anyone use the GPIB port to get SA sweeps and is it practical, or is there much other settings info that would be missing and make it hellish to do? I just read that some ATE users didn't buy the display. Did those ATE programmers always have one with the display to develop on? John
|
Re: cleaning contaminated boards
If it is a NiCad chances are you have highly alkali potassium salts that will happily eat their way through copper.? In situations like this the approach I take is:
1/ Remove the leaking battery.
2/ Remove as much blue crud as possible with a scalpel and metal scribe/pick, being careful not to damage components and traces, and in some cases where it has eaten its way under solder mask you have to carefully scrape that away to reveal more blue crud.
3/ Neutralise the remaining potassium salts with white wine vinegar.? Dab it on with a stuff brush and scrub firmly but carefully.? Leave it for a while.
4/ Wash the entire board with distilled water, again careful but firm scrubbing.? Repeat a couple of times.
5/ Put board in a warm dry place to thoroughly dry out.? If you can also use a dry air blower aerosol to make sure you blow out any water in tricky places such as under DIPs.
Before doing any of this make sure you do your research on the particular battery chemistry you're up against.
Good luck!
Neil
|
Re: Searching for a Pwr/Supp Circuit HP-8591A P/N 0950-1977
Hi Clint, I am sending my hand made diagram ... Best regards / Roumen LZ3RV, Sofia, Bulgaria On Fri, Oct 16, 2015 at 10:21 AM, 'hardy' hardyhansen@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
Hi
I think it son didiers site
Hardy
Fra: hp_agilent_equipment@... [mailto:
hp_agilent_equipment@...]
Sendt: 16. oktober 2015 08:04
Til: hp_agilent_equipment@...
Emne: [hp_agilent_equipment] Re: Searching for a Pwr/Supp Circuit HP-8591A
P/N 0950-1977
Hi Clint,
I have a pdf file and notes from Roumen / LZ3RV.
Did you find it?
QSP to vk4jkl AT wia.org.au
73 John @ irlp 6163
Ingen virus fundet i denne meddelelse.
Kontrolleret af AVG - www.avg.com
Version: 2015.0.6140 / Virusdatabase: 4447/10825 - Udgivelsesdato:
15-10-2015
[Non-text portions of this message have been removed]
|
Re: Searching for a Pwr/Supp Circuit HP-8591A P/N 0950-1977
Hi
I think it son didiers site
Hardy
Fra: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...]
Sendt: 16. oktober 2015 08:04
Til: hp_agilent_equipment@...
Emne: [hp_agilent_equipment] Re: Searching for a Pwr/Supp Circuit HP-8591A P/N 0950-1977
Hi Clint,
I have a pdf file and notes from Roumen / LZ3RV.
Did you find it?
QSP to vk4jkl AT wia.org.au
73 John @ irlp 6163
Ingen virus fundet i denne meddelelse.
Kontrolleret af AVG - www.avg.com
Version: 2015.0.6140 / Virusdatabase: 4447/10825 - Udgivelsesdato: 15-10-2015
[Non-text portions of this message have been removed]
|
Re: Searching for a Pwr/Supp Circuit HP-8591A P/N 0950-1977
Hi Clint,
I have a pdf file and notes from Roumen / LZ3RV.
Did you find it?
QSP to vk4jkl AT wia.org.au
73 John @ irlp 6163
|
toggle quoted message
Show quoted text
-----Original Message----- From: "wallydoc@... [hp_agilent_equipment]" <hp_agilent_equipment@...>
Sent: Oct 15, 2015 9:53 AM
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] HP3325 transistor
I broke and rebuilt a HP 3325A function generator. It appears that everything works up to the power amp.
Power amp has had most transistors replaced and does give out an appropriate signal as far as amplitude.
The wave forms are OK at the test point prior to the final. The output sine waveform from final is distorted and of course square is distorted at higher freq.
I was planning to replace the power amp input dual transistor 1845-0357 (SD2608).I think it's selenium 360mW NPN. I cannot find SD2608 or a cross to it. There is an original 1854-0357 on E Pay. It isn't Selenium, it is a SELected part. Does anyone know what this crosses to? It was replaced with HP 1854-1010, which is a MD918A. This is listed as being replaceable with an NTE81. There are a couple MD918A on Ebay, starting at $4.99 Here is a list of stocking distributors. Keysight states that a limited supply of the 1854-1010 are available for $ 20.17, each. I think that is a pair of 2N918A transistors, on the same die, to reduce drift. That is replaced by the NTE108-1, and Newark has those for 94 cents each. I would use a pair of them to replace a suspect transistor for testing, before spending $21 to $30 for a new part. Do you think this could be the problem?
Any other suggestions as to aligning the final amp? Any particulars as to the replacement of transistors?
Wally KC9INK Michael A. Terrell
|
Re: HP-8566B, HP-8566A used without display
?
I must agree with Rich. These are very nice displays and make the 8566/68
SA into a modern instrument. Simmconn has done a very nice job with this
kit.
?
?
Regards,
Tom
?
?
----- Original Message -----
Sent: Thursday, October 15, 2015 5:48
PM
Subject: Re: [hp_agilent_equipment]
HP-8566B, HP-8566A used without display
?
DUH....
|
|
|
|
|
|
|
|
|
|
NewScope-8 is
a Color LCD kit for HP 8566A, 8566B, 8568A, 8568B and 8567A Spectrum
Analyzers |
|
|
|
|
Preview
by Yahoo |
|
|
|
|
You might look into a
TFT display replacement. I have one in my HP-8567A and I am well pleased with
it.
You can look it
here and download the Instruction Manual. You an browse his website and see
what other upgrade kits that he has available.
RICH
From: "John Griessen
john@... [hp_agilent_equipment]"
To:
hp_agilent_equipment@...
Sent: Thursday, October 15, 2015 2:06
PM
Subject:
[hp_agilent_equipment] HP-8566B, HP-8566A used without display
?
Does anyone have
experience programming them with GPIB to make plots?
I'm
wondering if that is a viable option since the displays are so old and
fading...
|
Re: HP-8566B, HP-8566A used without display
DUH....
? | ? | | ? | ? | ? | ? | ? | NewScope-8 is a Color LCD kit for HP 8566A, 8566B, 8568A, 8568B and 8567A Spectrum Analyzers | | | Preview by Yahoo | | ? |
You might look into a TFT display replacement. I have one in my HP-8567A and I am well pleased with it.
You can look it here and download the Instruction Manual. You an browse his website and see what other upgrade kits that he has available.
RICH
From: "John Griessen john@... [hp_agilent_equipment]"
To: hp_agilent_equipment@...
Sent: Thursday, October 15, 2015 2:06 PM
Subject: [hp_agilent_equipment] HP-8566B, HP-8566A used without display
?
Does anyone have experience programming them with GPIB to make plots?
I'm wondering if that is a viable option since the displays are so old and fading...
|
Re: HP-8566B, HP-8566A used without display
You might look into a TFT display replacement. I have one in my HP-8567A and I am well pleased with it.
You can look it here and download the Instruction Manual. You an browse his website and see what other upgrade kits that he has available.
RICH
From: "John Griessen john@... [hp_agilent_equipment]"
To: hp_agilent_equipment@...
Sent: Thursday, October 15, 2015 2:06 PM
Subject: [hp_agilent_equipment] HP-8566B, HP-8566A used without display
?
Does anyone have experience programming them with GPIB to make plots?
I'm wondering if that is a viable option since the displays are so old and fading...
|
Re: HP-8566B, HP-8566A used without display
Simmconn Labs has really nice LCD replacement kits if your display is fading. No financial interest, just a beta tester and happy customer! Steve
toggle quoted message
Show quoted text
On Oct 15, 2015, at 4:06 PM, John Griessen john@... [hp_agilent_equipment] < hp_agilent_equipment@...> wrote:
?
Does anyone have experience programming them with GPIB to make plots?
I'm wondering if that is a viable option since the displays are so old and fading...
|
Re: HP-8566B, HP-8566A used without display
This works with the 8566A/B and the prologix USB.
?
?
?
Tom
?
?
toggle quoted message
Show quoted text
----- Original Message -----
Sent: Thursday, October 15, 2015 5:06
PM
Subject: [hp_agilent_equipment] HP-8566B,
HP-8566A used without display
?
Does anyone have experience programming them with GPIB to make
plots?
I'm wondering if that is a viable option since the displays are so
old and fading...
|
HP-8566B, HP-8566A used without display
Does anyone have experience programming them with GPIB to make plots?
I'm wondering if that is a viable option since the displays are so old and fading...
|
Re: UPDATE on the HP-8568B SA's, Battery Time
Gedas,
For the battery.
remove the bottom cover of the RF unit.
undo the single screw holding the cover for the A15 board, remove
that board.
the battery is mounted on the A15 board
Suitable 3.6v lithium battery replacements are Tadiran TL-5104 or
Omnicel SL-760/P
Regards,
Norman
?
Hello group. ?I have
been able to purchase a 2nd HP-8568B SA unit, this one with the rear
cables and with a HP-8444A (opt 059) tracking generator.? I was
so happy to see that by swapping cables from one unit to the other,
both 8568B's work just dandy, after the ovens warmed up. ?It
amazed me at how close they both were in frequency and amplitude
accuracy. ?I did however notice that one unit has a flashing
"BATTERY" next to the cold oven indication while the unit
warms up.
I have DL'ed every doc I
could find on these units but before I rip into them to find and
replace the battery can someone save me some time by possibly knowing
whether the required battery is in the top or bottom unit and if the
battery is difficult to get to and replace? ?Also, what battery
type is needed.
I have also ordered a set of cables for the original SA unit.? I
am so happy about these two units as they are clean with bright and
crisp displays. ?I played with them till 3 AM and running the VBW
down to 1 Hz was a real treat.? Having two separate RF inputs is
a real hoot as well.......what a neat SA these are.? Thank you
all that have helped me with tips on finding some cables and even a
very kind sole who offered to lend me a pair so I could check my unit
out before I purchased !
Gedas, W8BYA
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them
speak.
|
Re: Attenuators in HP/Agilent Infinium 548xx scopes
Jay, thanks very much for the information. I¡¯ll keep an eye out for proper ones.
-Pete
toggle quoted message
Show quoted text
Hi Pete,
The 54810A, 815A, 820A, and 825A use the same attenuators. They are also the same as the older 5452XA and 5454XA scopes. All of the above scopes also share the same A/D converters.
The 54835A and 54845A use different ones. They are dual units and there's two in each scope. Very un-repairable IME. There's a few on Ebay now for $500.
Jay?
|
Re: UPDATE on the HP-8568B SA's, Battery Time
Hi Vladan and thank you very, very much for that information. ?You told me exactly what I needed to know. ?I was afraid that I would lose important system data or information w/o the battery and would have to go through some kind of reprogramming etc. ?I will get a new battery ordered ASAP and drop it in.
Then my next task is to connect up the HP-8444A TG to one of the units to ensure it works. And if so, sell both units. ?I hate to do so but I must as it will hopefully provide some needed income into the household. ?Thank you again !
gedas, W8BYA
PS, for some reason I cannot reply to messages via e-mail like I used to be able to do and must log into the Yahoo group directly to make this post. ?It is weird as in some groups I am able to reply directly from e-mails and in others, like this one I cannot.
|
Re: UPDATE on the HP-8568B SA's, Battery Time
The battery is in the RF section (bottom box). In the "B" model, it's soldered into the processor board which is under a long, hinged sheet metal cover. I think it's the board with the green pull-out ears which will almost certainly crack when you try to pull it out. Try to pull it out without stressing the plastic handles.
You can actually see the battery before you pull the board out. Be careful with the ribbon cables when you re-insert the board. They can get pinched. The battery is a lithium AA size, but with leads. It's made by Tadiran. This is _not_ a rechargeable battery. It is available online and it seems to last approximately 15 years.
The only thing you lose when the battery dies is the ability to store user settings.
On the "A" models, the battery is behind the keyboard and it's a NiCd pack that usually leaks.
Vladan
|
UPDATE on the HP-8568B SA's, Battery Time
Hello group. ?I have been able to purchase a 2nd HP-8568B SA unit,
this one with the rear cables and with a HP-8444A (opt 059) tracking
generator.? I was so happy to see that by swapping cables from one
unit to the other, both 8568B's work just dandy, after the ovens warmed
up. ?It amazed me at how close they both were in frequency and amplitude accuracy. ?I did however notice that one unit has a flashing "BATTERY"
next to the cold oven indication while the unit warms up.
I have DL'ed every doc I could find on these units but
before I rip into them to find and replace the battery can someone save
me some time by possibly knowing whether the required battery is in the
top or bottom unit and if the battery is difficult to get to and
replace? ?Also, what battery type is needed.
I have also ordered a set of cables for the original SA unit.? I am so
happy about these two units as they are clean with bright and crisp displays. ?I played with them
till 3 AM and running the VBW down to 1 Hz was a real treat.? Having two
separate RF inputs is a real hoot as well.......what a neat SA these are.?
Thank you all that have helped me with tips on finding some cables and even a very kind sole who offered to lend me a pair so I could check my unit out before I purchased !
Gedas, W8BYA
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
|
Wally
I think this is what you are looking for: > eBay item number: 361297807134 <
I have purchased from them, made reasonable offers, always happy with results.
Dennis
--------------------------------------------
toggle quoted message
Show quoted text
On Thu, 10/15/15, wallydoc@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
Subject: [hp_agilent_equipment] HP3325 transistor
To: hp_agilent_equipment@...
Date: Thursday, October 15, 2015, 9:53 AM
I broke and rebuilt a HP 3325A function generator.
It appears that everything works up to the power
amp.Power amp has had most transistors
replaced and does give out an appropriate signal as far as
amplitude.The wave forms are OK at the
test point prior to the final. The output sine waveform from
final is distorted and of course square is distorted at
higher freq.I was planning to replace
the power amp input dual transistor 1845-0357 (SD2608).I
think it's selenium 360mW NPN. I cannot find SD2608 or a
cross to it. There is an original 1854-0357 on E
Pay.Does anyone know what this crosses
to?Do you think this could be the
problem?Any other suggestions as to
aligning the final amp? Any particulars as to the
replacement of transistors?Wally
KC9INK
|
I broke and rebuilt a HP 3325A function generator. It appears that everything works up to the power amp. Power amp has had most transistors replaced and does give out an appropriate signal as far as amplitude. The wave forms are OK at the test point prior to the final. The output sine waveform from final is distorted and of course square is distorted at higher freq. I was planning to replace the power amp input dual transistor 1845-0357 (SD2608).I think it's selenium 360mW NPN. I cannot find SD2608 or a cross to it. There is an original 1854-0357 on E Pay. Does anyone know what this crosses to? Do you think this could be the problem? Any other suggestions as to aligning the final amp? Any particulars as to the replacement of transistors? Wally KC9INK
|
Dave McGuire
Michael A. Terrell