开云体育

Hi all,

please check first whether the T&M instrument has a scope type display
or a video display. My HP8591 has a vidio one and I connected just a
standard video grabber (cheap nowadays) mainly for taking hardcopies.
A cheap old laptop will do the work.
Or, what about this:


Kind regards


please check first whether the T&M instrument has a sscope type display
or a video display. My HP8591
--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Peter Reilley"
<peter@...> wrote:
>
> My understanding of SA's is that their displays are not fast.
> There is no advantage is sweeping too fast and a lot of
> disadvantages. I can't imaging needing more than 100KHz
> of bandwidth on the X and Y axes. That should give you plenty of time
> to draw the spectrum graph and the little bit of text. As long
> as you are faster than the human bandwidth there is no
> need to go faster.
>
> Pete.
>
>
> ----- Original Message -----
> From: Kuba Ober
> To: hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>
> Sent: Thursday, September 01, 2011 8:23 PM
> Subject: Re: [hp_agilent_equipment] X-Y to VGA/USB converter
>
>
>
> > What is the speed of the old Tek and HP X/Y monitors?
>
> The question is: are those fast enough to be used to replace
> what was inside the box of various otherwise useful HP
> instruments.
>
> I'm also more than willing to have potentially extra functionality
> included, perhaps bypassing some of the circuitry in the instrument.
> My favorite would be to have a swept FFT by taking in directly
> the baseband output from a SA -- with a 16 bit ADC it should be feasible.
>
> I'm also looking at digitizing the frequency of the LO outputs from
> a SA to obtain precise frequency for any part of the display.
> I think I previously incorrectly said digitizing IF -- that's of course
> possible, but it'd be the last IF if anything. Inputting any number of
> LOs and digitizing their frequency should be very simple, as would be
> calculating the resulting center frequency. I think the hardest part
would
> be to make sure my device won't pollute the LOs, so I'd be learning some
> new tricks too.
>
> My starting point is to run my 7L14 with a mainframe with no CRT, then to
> tap LO1 and LO2 outputs for precise center frequency, then to tap
directly
> into the last IF output before the video processor (detector, LOG/LIN,
> digitizer).
>
> I can't really afford to get various other instruments that this
would work with,
> so I thought it'll be easier to ask for ideas instead of having to
rummage
> through downloads of HP manuals.
>
> So my appeal is as follows, to make it easy and technical: if you
have a SA
> or another instrument that you'd like to get a replacement display
for, give me
> the specs on its X-Y-Z outputs, and also on the LO frequency ranges and
> levels -- obviously if those LOs are available as outputs without
disassembly.
> That's give me some idea as to how to set up the signal processing
(gains,
> bandwidths, etc).
>
> Kuba
>
>
>
>

Hi Jason,

Getting a working spare power supply sounds like the way to go. I dont know how your tax system works but if you get the supply from Ridge, I can pick it up and just send it to you so you don't get hit for a too large bill. But check with them to be sure.

As to an isolation transformer, here is one that looks good:



A bit cheaper here:



600 VA, 120/240 volts 50/60 Hz should do well for most switching supply servicing.


Regards,
Tom


----- Original Message -----
From: ghostman1166@...
To: hp_agilent_equipment@...
Sent: Saturday, September 03, 2011 11:19 AM
Subject: [hp_agilent_equipment] Re: possiable power supply fault hp16500c



i think i will try and sort the money to get one shipped over to the uk (PSU). once that is safely here then i will look at 'tinkering' with the broken one.i dont yet have the confidence to go messing with one of theese, i had a stroke last year so fine work is still difficult! thanks for all the help i will keep you posted on progress!
great to know there are still some spare parts about.
while i have the covers off i will take the leads of etc and give all the contacts a clean as there is a fair but of gunge in the machine not to mention more than a few spiders in webs!!
managed to contact the guy i got it off and he wasnt much help, also mentioned to me that the hard drive is probally shot!! but having read the messages on here when i get the power back i might look at putting a cf card in :D.any other spares i should be on the look out for?
one last thing if i may.. where is the best place to get a isolating transformer from?
kind regards jason
--- In hp_agilent_equipment@..., leedyt@ wrote:
>
>
> Hi:
>
> Ridge Quipment (www.ridgeequipment.com) has lots of these PSU for about $25. I keep a few spares for my 16500Cs. They are easy to swap out and impossible to fix.
>
> Tom Leedy
> Clarksburg, MD 20871
>
>
>
> --- In hp_agilent_equipment@..., "ghostman1166@" <ghostman1166@> wrote:
> >
> > hi guys i am new to electronics and need some advice.
> > first my tale of woe....i wont bore you with all the details but basicaly i was stupid and brought privately a hp16500c, i drove 250 miles to pick it up (met the guy in a carpark!! first big mistake), and purchased what i belived was a fully working logic analyzer. ok yes it was stupid.got it home and it's dead!!! . . .>
>





[Non-text portions of this message have been removed]

Hi:

Ridge Quipment (www.ridgeequipment.com) has lots of these PSU for about $25. I keep a few spares for my 16500Cs. They are easy to swap out and impossible to fix.

Tom Leedy
Clarksburg, MD 20871



--- In hp_agilent_equipment@..., "ghostman1166@" <ghostman1166@> wrote:

hi guys i am new to electronics and need some advice.
first my tale of woe....i wont bore you with all the details but basicaly i was stupid and brought privately a hp16500c, i drove 250 miles to pick it up (met the guy in a carpark!! first big mistake), and purchased what i belived was a fully working logic analyzer. ok yes it was stupid.got it home and it's dead!!! . . .>

My understanding of SA's is that their displays are not fast.
There is no advantage is sweeping too fast and a lot of
disadvantages. I can't imaging needing more than 100KHz
of bandwidth on the X and Y axes. That should give you plenty of time
to draw the spectrum graph and the little bit of text. As long
as you are faster than the human bandwidth there is no
need to go faster.

Pete.


----- Original Message -----
From: Kuba Ober
To: hp_agilent_equipment@...
Sent: Thursday, September 01, 2011 8:23 PM
Subject: Re: [hp_agilent_equipment] X-Y to VGA/USB converter



> What is the speed of the old Tek and HP X/Y monitors?

The question is: are those fast enough to be used to replace
what was inside the box of various otherwise useful HP
instruments.

I'm also more than willing to have potentially extra functionality
included, perhaps bypassing some of the circuitry in the instrument.
My favorite would be to have a swept FFT by taking in directly
the baseband output from a SA -- with a 16 bit ADC it should be feasible.

I'm also looking at digitizing the frequency of the LO outputs from
a SA to obtain precise frequency for any part of the display.
I think I previously incorrectly said digitizing IF -- that's of course
possible, but it'd be the last IF if anything. Inputting any number of
LOs and digitizing their frequency should be very simple, as would be
calculating the resulting center frequency. I think the hardest part would
be to make sure my device won't pollute the LOs, so I'd be learning some
new tricks too.

My starting point is to run my 7L14 with a mainframe with no CRT, then to
tap LO1 and LO2 outputs for precise center frequency, then to tap directly
into the last IF output before the video processor (detector, LOG/LIN,
digitizer).

I can't really afford to get various other instruments that this would work with,
so I thought it'll be easier to ask for ideas instead of having to rummage
through downloads of HP manuals.

So my appeal is as follows, to make it easy and technical: if you have a SA
or another instrument that you'd like to get a replacement display for, give me
the specs on its X-Y-Z outputs, and also on the LO frequency ranges and
levels -- obviously if those LOs are available as outputs without disassembly.
That's give me some idea as to how to set up the signal processing (gains,
bandwidths, etc).

Kuba



[Non-text portions of this message have been removed]

If you run into any problems getting one from the states, let me know if I
can help. Ridge
is less than an hour from me and I go there several times a month.

Tom



----- Original Message -----
From: "Tom Miller" <tmiller@...>
To: <hp_agilent_equipment@...>
Sent: Friday, September 02, 2011 6:04 PM
Subject: Re: [hp_agilent_equipment] Re: possiable power supply fault
hp16500c


Yeah, you can't replace all the caps for under $25. I don't think there is
much chance
of finding a schematic as they were contract units.

There must be one of these supplies on the UK ebay site. They are easy to
pull and swap.


Regards,
Tom



----- Original Message -----
From: leedyt@...
To: hp_agilent_equipment@...
Sent: Friday, September 02, 2011 5:09 PM
Subject: [hp_agilent_equipment] Re: possiable power supply fault hp16500c




Hi:

Ridge Quipment (www.ridgeequipment.com) has lots of these PSU for about
$25. I keep a few spares for my 16500Cs. They are easy to swap out and
impossible to fix.

Tom Leedy
Clarksburg, MD 20871

--- In hp_agilent_equipment@..., "ghostman1166@"
<ghostman1166@> wrote:
>
> hi guys i am new to electronics and need some advice.
> first my tale of woe....i wont bore you with all the details but
basicaly i was stupid and brought privately a hp16500c, i drove 250 miles to
pick it up (met the guy in a carpark!! first big mistake), and purchased
what i belived was a fully working logic analyzer. ok yes it was stupid.got
it home and it's dead!!! . . .>





[Non-text portions of this message have been removed]



------------------------------------

Yahoo! Groups Links

Made by OECO Corp model number 080-20521-01 HP part number 0950-1853

I need to take a closer look.

Tom




----- Original Message -----
From: J. Forster
To: hp_agilent_equipment@...
Sent: Friday, September 02, 2011 6:17 PM
Subject: Re: [hp_agilent_equipment] Re: possiable power supply fault
hp16500c



Who made the PS and what is the part/model number?

I'd bet that it's similar to other supplies that the vendor made,
perhaps
repackaged. The schemats for a similar supply might be available.

Many PSs use a common inverter part, rated in Wattage classes, along
with
custom rectifiers and regulators. So, there might well be a dozen or so
designs with various output voltages, that all use the same inverter.

Is the controller chip a standard part? Often the App Notes for a chip
can
give a pretty good idea of how the circuit works.

-John

===================

> Yeah, you can't replace all the caps for under $25. I don't think
there is
> much chance
> of finding a schematic as there were contract units.
>
> There must be one of these supplies on the UK ebay site. They are easy
to
> pull and swap.
>
>
> Regards,
> Tom
>
>
>
> ----- Original Message -----
> From: leedyt@...
> To: hp_agilent_equipment@...
> Sent: Friday, September 02, 2011 5:09 PM
> Subject: [hp_agilent_equipment] Re: possiable power supply fault
> hp16500c
>
>
>
>
> Hi:
>
> Ridge Quipment (www.ridgeequipment.com) has lots of these PSU for
about
> $25. I keep a few spares for my 16500Cs. They are easy to swap out and
> impossible to fix.
>
> Tom Leedy
> Clarksburg, MD 20871
>
> --- In hp_agilent_equipment@..., "ghostman1166@..."
> <ghostman1166@...> wrote:
> >
> > hi guys i am new to electronics and need some advice.
> > first my tale of woe....i wont bore you with all the details but
> basicaly i was stupid and brought privately a hp16500c, i drove 250
> miles to pick it up (met the guy in a carpark!! first big mistake),
> and purchased what i belived was a fully working logic analyzer. ok
> yes it was stupid.got it home and it's dead!!! . . .>
>
>
>
>
>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>









------------------------------------

Yahoo! Groups Links

Just in case it helps in anyway, here are some detailed photos I took
of the inside of a 16500C:



-Glen

Yeah, you can't replace all the caps for under $25. I don't think there is
much chance
of finding a schematic as there were contract units.

There must be one of these supplies on the UK ebay site. They are easy to
pull and swap.


Regards,
Tom



----- Original Message -----
From: leedyt@...
To: hp_agilent_equipment@...
Sent: Friday, September 02, 2011 5:09 PM
Subject: [hp_agilent_equipment] Re: possiable power supply fault
hp16500c




Hi:

Ridge Quipment (www.ridgeequipment.com) has lots of these PSU for about
$25. I keep a few spares for my 16500Cs. They are easy to swap out and
impossible to fix.

Tom Leedy
Clarksburg, MD 20871

--- In hp_agilent_equipment@..., "ghostman1166@..."
<ghostman1166@...> wrote:
>
> hi guys i am new to electronics and need some advice.
> first my tale of woe....i wont bore you with all the details but
basicaly i was stupid and brought privately a hp16500c, i drove 250
miles to pick it up (met the guy in a carpark!! first big mistake),
and purchased what i belived was a fully working logic analyzer. ok
yes it was stupid.got it home and it's dead!!! . . .>









------------------------------------

Yahoo! Groups Links