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Date
Re: Buying a used VNA
Shown is my old HP8754A and my software for it compared with my software for the PNA.
By Joe Smith · #119917 ·
HP 8665A Latest ROMS
The HP8665A?Installation Note 08665-90067 lists 4.2.1 as the last version. I see there is a 4.2.2 in the files section but labeled for the 8665B. Can this be used on the A version? If not can someone
By vk2bea · #119916 ·
Re: New member intro
By doug · #119915 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
I looked at the 1700 page data sheet for the Arm Cortex 32 bit CPU and the much smaller development board data sheet (30 pages?). It looks complicated! I have a RaspberryPi 3 inserted in a SmartiPi
By peter bunge · #119914 ·
Re: HP200CD oscillator
Largely, PCB transformer oil is sufficiently inert that it won't hurt you. All that happened to technicians that had their arms up to their arm-pits daily in PCB oil while servicing HV supplies, is
By Chuck Harris · #119913 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
I am impressed with the video and would love to add an LCD to my HP4192A Impedance Analyzer that has no CRT and expects an XYY analog pen plotter. Anyone interested please contact me privately and
By peter bunge · #119912 ·
Re: HP200CD oscillator
Be careful when handling the oil in those old bathtub caps. The older ones are full of PCBs. Dave Casey [email protected]> wrote:
By Dave Casey · #119911 ·
Re: HP200CD oscillator
Regarding reliability of oil filled capacitors, a while back a friend had the main filter capacitor of an HP410B fail.? It exploded.? It was an oil filled bathtub capacitor, maybe 4 microfarads.?
By Bob Albert <bob91343@...> · #119910 ·
Re: New member intro
Chris; it depends on your hobby, What do you want to do? One of my hobbies turned out to be fixing old HP test equipment because it was an excellent way to learn electronics. The manuals for the 1960s
By peter bunge · #119909 ·
Re: HP200CD oscillator
?? I absolutely agree with this. However, all paper caps tend to become degraded with time. The Sprague caps seem to have had a peculiar problem and short time failures but all old paper caps should
By Richard Knoppow · #119908 ·
71910A surveillance receivers
Hi all I am trying to find out the sort of work People?are managing to do with the HP 71910A surveillance? receivers It would also be nice to see how meany are out there and how many are actual
By Paul Bicknell · #119907 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
Unfortunately all analog displays cannot be replaced by LCD displays without a very important quantity of associated electronic. All is question of bandwidth first. On spectrum analyzers, SNA or VNA
By F1EKU · #119906 ·
Re: Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
Hi just a bit of information we have a lot of the New scope literature in the?Catalogue's file on this site Regards Paul
By Paul Bicknell · #119905 ·
Re: Seeking advice for an HP-3336C
Fixed my attenuator problems using Joe's board.? The 3336C with the Aromat relays are not the same spacing as the 3325 so the PCB had to be sheared.
By Dave Schmidt · #119904 ·
Question: XY (XYZ or Vector) instrument CRT, replacement with an LCD ?
hi, In the event of instrument CRT death, one might want to do a replacement having an LCD display: The question is: -- are there any existing modules ( or schematics, or projects )? that might be
By gren · #119903 ·
Re: New member intro
The only one of those I recognize is the 3456A DVM, as I purchased one a year or two ago. eBay prices range from less than US$100 to several hundred depending on condition, calibration, and the
By Jeremy Nichols · #119902 ·
Re: HP200CD oscillator
Hi Richard, I have never seen anything that would lead me to believe an end cap was glued onto the body of the capacitor, but maybe that is what they did? Or, maybe the capacitor was built in
By Chuck Harris · #119901 ·
Re: New member intro
Hi Chris Welcome to the group but your problem is not new and one that most on this group suffer from Covid shut down for the past 2 years has meant a lack of rallies / to reduce our stock and
By Paul Bicknell · #119900 ·
New member intro
Hello Group! I'm trying to get a handle on my test gear and decided to start looking at my HP hoard. I need to decide what to keep/fix/purge/replace and finally joining here seemed like a good first
By Chris Wilkson · #119899 ·
Re: HP200CD oscillator
Is this descended from the same company? Solar Electronics Co10866 Chandler Blvd. North Hollywood, CA 91601 And what about
By Bob Albert <bob91343@...> · #119898 ·