Re: HP 54512B (pair) repair
Speaking of CR2032 coin cells, don’t spend $$ at a local store; order from Digital-Key for about $0.50 in quantity. I usually buy 50 pieces at a time. But then I have a keychain LED flashlight
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Jim Ford
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#150460
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
I found this while searching for HP 11707A information:
https://ia800406.us.archive.org/21/items/servicemanual86600unse_0/servicemanual86600unse_0.pdf
If there is need and interest, perhaps upload
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David Feldman
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#150459
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
David:
Please post a link to the manual that you found.
Thanks
ed
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Ed (scskits)
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#150458
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Free: Repaired 6GHz coupler for 8753D/E or 85047A
Do you need a coupler to fix your network analyzer?
I have a repaired 5087-6007 coupler which should fit the 8753D, E, ES or ET or the 85047A test set.
It was presumably blown out with applied RF
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John Gord
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#150457
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Re: HP 54512B (pair) repair
CR followed by numbers indicates the physical size, CR2032 etc.? I would say if you're already in there, replace them as even if they are good they won't last much longer.? I always replace memory
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Peter Gottlieb
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#150456
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
The 08660-90070 manual (HP 8660A/B/C service) has been helpful/friendly so far.
There are separate "big" operating/service manuals for 8660A, B and C; the 08660-90070 manual sends technicians to one
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David Feldman
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#150455
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Re: Keysight Forum
A couple of attempts I made to post a question to keysight community (I think that what you're referring to as keysight forum?) did not ever appear online (once late last year, once sometime in late
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David Feldman
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#150454
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Re: HP 54512B (pair) repair
I've gotten a bit of a chance tonight to check a couple of things with one
of the units:
*Unit #2 *(S/N: 3214A00704: consecutive units!)
- Voltages on rails:
- +11.924V
- +12.050V
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Radu Bogdan Dicher
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#150453
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Re: Keysight Forum
Peter - Yes, there are Keysight engineers who monitor the list and are very helpful, but my experience is that they are very rare. My particular question applied to a model of the FieldFox that is
By
WReeve
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#150452
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Re: HP 346A Noise Source Below 10 MHz
#file-notice
Thanks everyone for your replies and suggestions. This is the kind of information I was hoping for.
Whit
--
Whitham D. Reeve
Anchorage, Alaska USA
---
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WReeve
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#150451
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Re: Thoughts on Hakko FR301
Hi,
I would not try to do this without the option to preheat the board to around 80C.
The problem is that it really hard to extract the 56pins in one go.
I my suggestion is to use ChipQuick on a
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Rens Dijkshoorn | PA3AXA
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#150450
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
TinySA Ultra used to check outputs from the 11707A (except for the two 11661B-related outputs, as I forgot to enable the "Ultra" mode for coverage > 800 MHz.
The 500, 100, 20 and 350-450 MHz signals
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David Feldman
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#150449
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Re: Searching parts for HP 5370B
I can't help with the front panel frame, but I might be able to help with the filter.? I had to replace the one on my unit and ended up machining one out of 1/16" red acrylic and then using a vinyl
By
zgoode
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#150448
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Re: HP Agilent 8753ES VNA repair [Help]
Matt,
What do you see if you display the A, B, and R with MEAS/INPUT_PORTS? ?? (I assume menus are similar the the 8753D)
On my 8753D, the R channel is at about 0dB displayed (with some ripple) and
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John Gord
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#150447
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
Hi Ed, WB2UAQ ---
Thank you both for quick and helpful replies!
Ed - with your suggestion, I remembered that I do have a 11707A and it is now in the unit (I've never used it before as I've not had
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David Feldman
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#150446
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Re: HP Agilent 8753ES VNA repair [Help]
Hi,
I did some tests on my working 8753ES.
These results could be used for comparison.
Yves
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Yves Tardif
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#150445
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Re: 8596E Spectrum Analyzer Fault
Instead of START / STOP, try entering as CENTER and SPAN. ?Just to see if it freezes when it has enough info to start a sweep, or if it is related specifically to the sweep defined by entering the
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Dave Wright
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#150444
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Re: HP 54512B (pair) repair
Awesome, thank you, Peter.
I wonder if anyone has a fresh recollection of what battery or maybe
battery-backed RAM would be suspect and possibly needed so I'd start
working on an order to have the
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Radu Bogdan Dicher
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#150443
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Re: HP 54512B (pair) repair
Seems like you are on the right track.? Many HP scopes of that era lose their minds if the memory battery goes dead.
Peter
By
Peter Gottlieb
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#150442
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Re: Thoughts on Hakko FR301
And the likely price difference is worth paying in strides. I've said this
before - in full agreement with Dave McGuire - but there's no price that's
too high to get good, well working tools. The best
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Radu Bogdan Dicher
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#150441
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