Re: Looking to buy HP6268B 40V 30A Power Supply
On Mon, Oct 25, 2021 at 05:57 AM, Dave Hills wrote:
Humming" is an artifact of transformer core magnetostriction
Yes, humming, due to magnostriction, used to be a common problem in transformer designs; but, better steel and lamination design has made transformers quieter. I know, it's a design issue in large power distribution transformers. (They used to hum annoyingly loud... but, are now smaller and quieter too.) The hum can be a symptom of transformer core de-lamination. It could also be an indication that the transformer is being run past its current(s) rating(s)... for whatever is causing that. (partly shorted filter cap?)
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Re: Agilent/Keysigh ESG series CLIP
Don't worry Bruce, I put MANY documents, i had and i found around, public available...this one is my one job... Milan
On Mon, Oct 25, 2021 at 10:07 PM Bruce < bruce@...> wrote: So I think there was confusion on my statement - which I agree was not?
well thought out.
What I think I was going toward was purchasing the document for the?
groups use - so We should ask what Enviado thinks would be a?
reasonable charge to put it in ut library and we all split the cost.
Not really trying to devalue his work.
Cheers!
Bruce
Quoting Milan Vasic <vasa1958@...>:
> Thanks for understanding...was, I think, 2 weeks of work
> Milan
>
> On Mon, 25 Oct 2021, 20:02 Alexandre Souza, <alexandre.tabajara@...>
> wrote:
>
>> I scan lots of books and manuals to make avaiable to comunity (
>> ). It is a LOT of work, energy cost,
>> eventual machine repairs...please, be fair, contribute to milan's work and
>> make his work be worth.
>>
>> 73 se pu2sex Alexandre
>>
>> Enviado do meu Tele-Movel
>>
>> Em seg, 25 de out de 2021 14:41, Daun Yeagley <daun@...> escreveu:
>>
>>> I don't think that would be fair at all to Milan.? I know from
>>> experience that it is a LOT of work to scan a manual, especially one as
>>> big as this.? His price for it is quite reasonable, especially since it
>>> is not easily available.? (and I'm not known for being loose with my
>>> money)
>>>
>>> My $.02 worth.
>>>
>>> Daun
>>>
>>> On 10/25/2021 1:27 PM, Bruce wrote:
>>> > should we several of us chip in and purchase a copy for the "library" ?
>>> >
>>> > Cheers!
>>> >
>>> > Bruce
>>> >
>>> > Quoting Milan Vasic <vasa1958@...>:
>>> >
>>> >> Hi Fellows,
>>> >> Last offer before retirement...
>>> >>
>>> >> CLIP P/N is E4400-90336
>>> >>
>>> >> Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
>>> >> E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
>>> >> I’m sure that also E44xxA series are covered because i have also
>>> >> ESG-D3000A
>>> >> = E4432A and boards/modules of this guy are also covered. Keysight
>>> seems
>>> >> didn’t put E44xxA series in the Find-A-Part database because is older
>>> >> than
>>> >> B series.
>>> >>
>>> >> Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
>>> >>
>>> >> When we did a scan, not optimal scanner parameters were used... scanner
>>> >> ignored inductors (spring like lines) but references and values are
>>> >> there.
>>> >> Once we saw this, was to late to do job again.
>>> >>
>>> >> Zip file size is about 122MB
>>> >>
>>> >> I told, not perfect scan quality but totally useful, please check
>>> >> attachment.
>>> >>
>>> >> Please contact me on my private email: milan.vasic@...
>>> >>
>>> >> BR,
>>> >> Milan
>>> >>
>>> >>
>>> >>
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>>> --
>>> Daun E. Yeagley II, N8ASB
>>>
>>>
>>>
>>>
>>>
>>>
>>
>
>
>
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Re: Looking to buy HP6268B 40V 30A Power Supply
On Mon, Oct 25, 2021 at 05:30 AM, Alex wrote:
Starting to look for the HP6268B power supply,
My question/curiosity... would be why? I mean it's okay if you fancy one... say, just to hold the basement floor down. But assuming you want one to do something... why one of those?
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Re: Agilent/Keysigh ESG series CLIP
So I think there was confusion on my statement - which I agree was not well thought out.
What I think I was going toward was purchasing the document for the groups use - so We should ask what Enviado thinks would be a reasonable charge to put it in ut library and we all split the cost.
Not really trying to devalue his work.
Cheers!
Bruce
Quoting Milan Vasic <vasa1958@...>:
toggle quoted message
Show quoted text
Thanks for understanding...was, I think, 2 weeks of work
Milan
On Mon, 25 Oct 2021, 20:02 Alexandre Souza, <alexandre.tabajara@...>
wrote:
I scan lots of books and manuals to make avaiable to comunity (
www.tabalabs.com.br/esquemateca). It is a LOT of work, energy cost,
eventual machine repairs...please, be fair, contribute to milan's work and
make his work be worth.
73 se pu2sex Alexandre
Enviado do meu Tele-Movel
Em seg, 25 de out de 2021 14:41, Daun Yeagley <daun@...> escreveu:
I don't think that would be fair at all to Milan. I know from
experience that it is a LOT of work to scan a manual, especially one as
big as this. His price for it is quite reasonable, especially since it
is not easily available. (and I'm not known for being loose with my
money)
My $.02 worth.
Daun
On 10/25/2021 1:27 PM, Bruce wrote:
should we several of us chip in and purchase a copy for the "library" ?
Cheers!
Bruce
Quoting Milan Vasic <vasa1958@...>:
Hi Fellows,
Last offer before retirement...
CLIP P/N is E4400-90336
Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
I’m sure that also E44xxA series are covered because i have also
ESG-D3000A
= E4432A and boards/modules of this guy are also covered. Keysight seems
didn’t put E44xxA series in the Find-A-Part database because is older
than
B series.
Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
When we did a scan, not optimal scanner parameters were used... scanner
ignored inductors (spring like lines) but references and values are
there.
Once we saw this, was to late to do job again.
Zip file size is about 122MB
I told, not perfect scan quality but totally useful, please check
attachment.
Please contact me on my private email: milan.vasic@...
BR,
Milan
--
Daun E. Yeagley II, N8ASB
|
Re: Agilent/Keysigh ESG series CLIP
And on my knowledge, it's very rare document. Milan
Thanks for understanding...was, I think, 2 weeks of work? Milan
I scan lots of books and manuals to make avaiable to comunity (). It is a LOT of work, energy cost, eventual machine repairs...please, be fair, contribute to milan's work and make his work be worth.?
73 se pu2sex Alexandre Enviado do meu Tele-Movel
Em seg, 25 de out de 2021 14:41, Daun Yeagley < daun@...> escreveu: I don't think that would be fair at all to Milan.? I know from
experience that it is a LOT of work to scan a manual, especially one as
big as this.? His price for it is quite reasonable, especially since it
is not easily available.? (and I'm not known for being loose with my money)
My $.02 worth.
Daun
On 10/25/2021 1:27 PM, Bruce wrote:
> should we several of us chip in and purchase a copy for the "library" ?
>
> Cheers!
>
> Bruce
>
> Quoting Milan Vasic <vasa1958@...>:
>
>> Hi Fellows,
>> Last offer before retirement...
>>
>> CLIP P/N is E4400-90336
>>
>> Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
>> E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
>> I’m sure that also E44xxA series are covered because i have also
>> ESG-D3000A
>> = E4432A and boards/modules of this guy are also covered. Keysight seems
>> didn’t put E44xxA series in the Find-A-Part database because is older
>> than
>> B series.
>>
>> Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
>>
>> When we did a scan, not optimal scanner parameters were used... scanner
>> ignored inductors (spring like lines) but references and values are
>> there.
>> Once we saw this, was to late to do job again.
>>
>> Zip file size is about 122MB
>>
>> I told, not perfect scan quality but totally useful, please check
>> attachment.
>>
>> Please contact me on my private email: milan.vasic@...
>>
>> BR,
>> Milan
>>
>>
>>
>
>
>
>
>
>
>
>
--
Daun E. Yeagley II, N8ASB
|
Re: Agilent/Keysigh ESG series CLIP
Thanks for understanding...was, I think, 2 weeks of work? Milan
I scan lots of books and manuals to make avaiable to comunity (). It is a LOT of work, energy cost, eventual machine repairs...please, be fair, contribute to milan's work and make his work be worth.?
73 se pu2sex Alexandre Enviado do meu Tele-Movel
Em seg, 25 de out de 2021 14:41, Daun Yeagley < daun@...> escreveu: I don't think that would be fair at all to Milan.? I know from
experience that it is a LOT of work to scan a manual, especially one as
big as this.? His price for it is quite reasonable, especially since it
is not easily available.? (and I'm not known for being loose with my money)
My $.02 worth.
Daun
On 10/25/2021 1:27 PM, Bruce wrote:
> should we several of us chip in and purchase a copy for the "library" ?
>
> Cheers!
>
> Bruce
>
> Quoting Milan Vasic <vasa1958@...>:
>
>> Hi Fellows,
>> Last offer before retirement...
>>
>> CLIP P/N is E4400-90336
>>
>> Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
>> E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
>> I’m sure that also E44xxA series are covered because i have also
>> ESG-D3000A
>> = E4432A and boards/modules of this guy are also covered. Keysight seems
>> didn’t put E44xxA series in the Find-A-Part database because is older
>> than
>> B series.
>>
>> Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
>>
>> When we did a scan, not optimal scanner parameters were used... scanner
>> ignored inductors (spring like lines) but references and values are
>> there.
>> Once we saw this, was to late to do job again.
>>
>> Zip file size is about 122MB
>>
>> I told, not perfect scan quality but totally useful, please check
>> attachment.
>>
>> Please contact me on my private email: milan.vasic@...
>>
>> BR,
>> Milan
>>
>>
>>
>
>
>
>
>
>
>
>
--
Daun E. Yeagley II, N8ASB
|
Re: Agilent/Keysigh ESG series CLIP
I scan lots of books and manuals to make avaiable to comunity (). It is a LOT of work, energy cost, eventual machine repairs...please, be fair, contribute to milan's work and make his work be worth.?
73 se pu2sex Alexandre Enviado do meu Tele-Movel Em seg, 25 de out de 2021 14:41, Daun Yeagley < daun@...> escreveu:
I don't think that would be fair at all to Milan.? I know from
experience that it is a LOT of work to scan a manual, especially one as
big as this.? His price for it is quite reasonable, especially since it
is not easily available.? (and I'm not known for being loose with my money)
My $.02 worth.
Daun
On 10/25/2021 1:27 PM, Bruce wrote:
> should we several of us chip in and purchase a copy for the "library" ?
>
> Cheers!
>
> Bruce
>
> Quoting Milan Vasic <vasa1958@...>:
>
>> Hi Fellows,
>> Last offer before retirement...
>>
>> CLIP P/N is E4400-90336
>>
>> Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
>> E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
>> I’m sure that also E44xxA series are covered because i have also
>> ESG-D3000A
>> = E4432A and boards/modules of this guy are also covered. Keysight seems
>> didn’t put E44xxA series in the Find-A-Part database because is older
>> than
>> B series.
>>
>> Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
>>
>> When we did a scan, not optimal scanner parameters were used... scanner
>> ignored inductors (spring like lines) but references and values are
>> there.
>> Once we saw this, was to late to do job again.
>>
>> Zip file size is about 122MB
>>
>> I told, not perfect scan quality but totally useful, please check
>> attachment.
>>
>> Please contact me on my private email: milan.vasic@...
>>
>> BR,
>> Milan
>>
>>
>>
>
>
>
>
>
>
>
>
--
Daun E. Yeagley II, N8ASB
|
Re: Agilent/Keysigh ESG series CLIP
I don't think that would be fair at all to Milan.? I know from experience that it is a LOT of work to scan a manual, especially one as big as this.? His price for it is quite reasonable, especially since it is not easily available.? (and I'm not known for being loose with my money)
My $.02 worth.
Daun
toggle quoted message
Show quoted text
On 10/25/2021 1:27 PM, Bruce wrote: should we several of us chip in and purchase a copy for the "library" ?
Cheers!
Bruce
Quoting Milan Vasic <vasa1958@...>:
Hi Fellows,
Last offer before retirement...
CLIP P/N is E4400-90336
Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
I’m sure that also E44xxA series are covered because i have also ESG-D3000A
= E4432A and boards/modules of this guy are also covered. Keysight seems
didn’t put E44xxA series in the Find-A-Part database because is older than
B series.
Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
When we did a scan, not optimal scanner parameters were used... scanner
ignored inductors (spring like lines) but references and values are there.
Once we saw this, was to late to do job again.
Zip file size is about 122MB
I told, not perfect scan quality but totally useful, please check
attachment.
Please contact me on my private email: milan.vasic@...
BR,
Milan
--
Daun E. Yeagley II, N8ASB
|
Re: Agilent/Keysigh ESG series CLIP
should we several of us chip in and purchase a copy for the "library" ?
Cheers!
Bruce
Quoting Milan Vasic <vasa1958@...>:
toggle quoted message
Show quoted text
Hi Fellows,
Last offer before retirement...
CLIP P/N is E4400-90336
Model covered: E4400B, E4420B, E4421B, E4422B, E4423B, E4424B, E4425B,
E4426B, E4430B, E4431B, E4432B, E4433B, E4434B, E4435B, E4436B
I’m sure that also E44xxA series are covered because i have also ESG-D3000A
= E4432A and boards/modules of this guy are also covered. Keysight seems
didn’t put E44xxA series in the Find-A-Part database because is older than
B series.
Was a lot of work to scan over 1000pages...I'm asking 35USD or 30EUR
When we did a scan, not optimal scanner parameters were used... scanner
ignored inductors (spring like lines) but references and values are there.
Once we saw this, was to late to do job again.
Zip file size is about 122MB
I told, not perfect scan quality but totally useful, please check
attachment.
Please contact me on my private email: milan.vasic@...
BR,
Milan
|
Agilent/Keysigh ESG series CLIP
Hi Fellows, Last offer before retirement...
|
CLIP P/N
is E4400-90336
Model
covered:
E4400B,
E4420B,
E4421B,
E4422B,
E4423B,
E4424B,
E4425B,
E4426B,
E4430B,
E4431B,
E4432B,
E4433B,
E4434B,
E4435B, E4436B
I’m sure that
also E44xxA
series are
covered
because i have
also
ESG-D3000A =
E4432A and
boards/modules
of this guy
are also
covered.
Keysight seems
didn’t put
E44xxA series
in the
Find-A-Part
database
because is
older than B
series.?
Was a lot
of work to
scan over
1000pages...I'm
asking 35USD
or 30EUR
When we did
a scan, not
optimal
scanner
parameters
were used...
scanner
ignored
inductors
(spring like
lines) but
references and
values are
there. Once we
saw this, was
to late to do
job again.
Zip file
size is about
122MB
I told,
not perfect
scan quality
but totally
useful, please
check
attachment. Please contact me on my private email: milan.vasic@...
BR,
Milan
|
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Re: HP54720D Service manual
On 10/25/21 2:59 AM, volker hois wrote: thank you first for the upload! You're welcome. Incidentally on page 145 is the power-supply 'A1' but no circuit sheet. I must repair on the board itself not to swap out the board.
Well I repair on the board itself so I do that for more then 35years - maybe you have a real service manual and not the how to do swap a board plan. What you're looking for is the CLIP, Component-Level Information Package, which includes the schematics. I've never seen one available for the 54720D, but perhaps someone else knows better. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
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Re: HP54720D Service manual
Hello Yves,
thank you for helping - but this is a service guide and I'm
searching the circuit sheet to repair the power-supply but there is
no sheet include.
maybe you know where I can get the Service Manual and not the plan
how I can swap a board in the rack.
Best Regards
Volker
Am 25.10.21 um 00:35 schrieb Dave R:
toggle quoted message
Show quoted text
invalid format for my Android. 73
For
service manual
?
?
?
-Yves
?
?
Do you have found some service-manual
for the HP54720??
I also have a defect Oscilloscope with this type.
Best Regards
Volker
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Re: Agilent 54831M Service Disk
I want to bump this up to the top. I expected this disk to exist, so I'm shocked I haven't had a response.
Thanks in advance
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Re: Hard drive image for Agilent MSO/DSO8000A (MSO8104A)
No clue for these boxes in particular. But if it helps, on the 16900, that's all I did. Installed a generic version of XP, and then installed the software on top. It worked fine -- the software installed the necessary hardware drivers.
Keith
toggle quoted message
Show quoted text
On 10/25/2021 9:23 AM, amirb wrote: is it possible to just install a WinXP and then install the big firmware software?
am I gonna be missing some drivers then like in Tek scopes?
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Re: Hard drive image for Agilent MSO/DSO8000A (MSO8104A)
is it possible to just install a WinXP and then install the big firmware software?
am I gonna be missing some drivers then like in Tek scopes?
?
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Hard drive image for Agilent MSO/DSO8000A (MSO8104A)
I have a MSO8104A with hard drive removed :-(
Does anybody have a clone image of the HDD (any MSO/DSO8000A model is ok)
I guess Agilent 54832B,D are also the same so an image of those should also work
thanks
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Re: Looking to buy HP6268B 40V 30A Power Supply
"Humming" is an artifact of transformer core magnetostriction, caused by the AC line pre-regulator.? It is normal for these supplies.
Dave
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Looking to buy HP6268B 40V 30A Power Supply
Starting to look for the HP6268B power supply, no hurry. Could be a fixer upper as long as cosmetics are decent. Anyone got one they want to sell? Shipping to Miami FL.
Yes I have looked at ebay, and there are a couple, most are between overpriced (to me) or just to plain ugly looking (broken, bashed, badly scratched, etc) for what they are asking.
Hoping to get a better deal here and from a trustworthy source.
Also, anyone can tell me of known issues to look out for, or parts that are no longer available, in case I run into a potential "for parts only" opportunity.
Sellers seem to mention very often the loud humming under load, not sure how loud it really is, but seems like a "normal".
One seller says the humming at 60% load gets louder than the internal fan running.
Also I see quite a bit of bashed in broken meters, not sure how fixable those are, if only the side mounting ears break off and can be reattached.
Thank you.
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Re: Does anyone have an Agilent 16452A Liquid Test Fixture?
On Mon, 25 Oct 2021 at 06:00, John Lyles < jtml@...> wrote: When I worked for E. I. DuPont Co. 30 years ago, we had a coaxial fixture made from brass, that had a connection on the bottom (banana pins?) that plugged into the top of a Hp 4342A Q meter. With a standard coil to establish resonance, we could measure low loss dielectric fluids quite accurately.
? I spoke to someone at NPL who said that to measure low-loss liquids, you do indeed need a resonance technique, and look at the Q with and without the liquid. The Q would be calculated from the 3 dB bandwidth. The basic point I was trying to make is that you can't measure the low-loss liquids by measuring the impedance with an LCR meter. There's a large document from NPL I have cited before on this topic.
Dave
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Re: HP54720D Service manual
Hello Dave,
thank you first for the upload!
Incidentally on page 145 is the power-supply 'A1' but no circuit sheet. I must repair on the board itself not to swap out the board.
Well I repair on the board itself so I do that for more then 35years - maybe you have a real service manual and not the how to do swap a board plan.
73 de OE1DOA
Volker
Am 25.10.21 um 00:47 schrieb Dave McGuire:
toggle quoted message
Show quoted text
On 10/24/21 6:38 PM, Dave McGuire wrote:
?? Android deals with PDF files just fine, but when corporations to stupid things with pass-through pages (like the one linked below), sometimes phone/tablet browsers do stupid things with those.
?? I've downloaded the file and put it here for you; I'll delete it after you grab it.
?? ? Ok, *now* it's there. ;) I'm having a "typo day".
???????????? -Dave
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Alexandre Souza
Dave McGuire
Keith Monahan
Dr. David Kirkby, Kirkby Microwave Ltd