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Re: Hello, and 16500A memory sizes
Don't all of those things connect through the same ribbon cable between the front panel and the CPU board? Are you sure that cable was reconnected correctly at both ends when you reinstalled the
By Glen Slick · #49247 ·
Re: Hello, and 16500A memory sizes
On Fri, Jan 18, 2013 at 11:34 AM, Chris Jones <chris@...> wrote: > On 18/01/2013 11:24, Alexandre "tabajara" Souza wrote: > >> Chris, probably you're missing two addressing lines to upgrade
By cmjones01 · #49246 ·
Re: "Event logging" T & M equipment?
Why not make one? Take anyone's microprocessor board (Arduino would work well), feed it with AC, biased to half the supply voltage, then do a fast A/D on it. This gives you a running peak to peak
By Harvey White · #49245 ·
Re: Foam conductor problems
My two Advantest TR5823H did not work because of bad conductive foam in the pushbutton switches. I opened all of the switches and put a dab of conductive stuff sold to repair rear window defrosters in
By rovmkr · #49244 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
How about the other tests recommended? Throw some low level signals at the various IF's and see if you get a response. If the IF's work, could be a bad mixer (I doubt it with no 000 response), more
By WA2SCL_Jeff · #49243 ·
Re: Spectrum Analyzer
In the past schematics could be had from Japan for some of these. Maybe they tightened up. -- Dave Emery N1PRE/AE, die@... DIE Consulting, Weston, Mass 02493 "An empty zombie
By Dave Emery · #49242 ·
Re: Spectrum Analyzer
Lots of Advantest spectrum analyzers out there. Many with great performance, some at good prices. Few/none with schematics. Do you feel lucky? -- john, KE5FX
By John Miles <jmiles@...> · #49241 ·
Re: Spectrum Analyzer
I am now retired for almost 10 years, but at my place we had about 4 or 5 Advantest SAs. They worked very well, and are relatively small. One thing I noticed is that the CRT would go dim a little
By doug · #49240 ·
Re: "Event logging" T & M equipment?
Thanks for that Dave. In this day of digital and handheld T & M, this is antique, but affordable and functional it is... Dave (yet another)
By Dave C <davec2468@...> · #49239 ·
Re: "Event logging" T & M equipment?
Dave No relation to seller, but here is an expandable, newer model Dranetz unit with a line analyzer plugin and a 30 day right of return, for $61, including shipping (at least to my
By David Speck · #49238 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
When its tuned to freq 000 there's no response
By steven · #49237 ·
Re: "Event logging" T & M equipment?
Dave, I'm not sure how big your budget is, but I've picked up good working older model Dranetz power line analyzers for less than $200 on eBay. There are over 250 listings from them up now. They
By David Speck · #49236 ·
"Event logging" T & M equipment?
Data logging devices are commonplace now days. Many high-end multimeters have such a feature where you can plug the meter up to a power source and record levels over time. But I'm interested in
By Dave C <davec2468@...> · #49235 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
Do you still get zero MHz response? If so, the 1st IF on are working to at least some degree. Baseline noise on wide RBW means the last IF and video are working. Can you inject some signals into
By WA2SCL_Jeff · #49234 ·
Re: Spectrum Analyzer
Just curious, What do you think of the Advantest SA vs HP or Tektronix brands? Thanks in advance. Jeff M. ________________________________ To: hp_agilent_equipment@... Sent: Thu,
By Jeff Miller <jmelect@...> · #49233 ·
Re: How to test a mixer on a hp 8559 plugin in a 853 main frame
By steven · #49232 ·
Re: 16500 Logic Analyzer Discussion
On Fri, 18 Jan 2013 12:28:35 -0800, you wrote: >(Changing the subject from spectrum analyzers to logic analyzers) > >On Thu, Jan 17, 2013 at 7:51 PM, Harvey White <madyn@...>
By Harvey White · #49231 ·
Re: Foam conductor problems
After taking these boards apart many times the results were always the same, either one or more LEDs and one or more buttons were not working. Every time it was a different set of buttons or LEDs.
By John McClung · #49230 ·
Re: HP 3468 DMM battery change
Did you check the power supply voltages? Joe
By J. L. Trantham · #49229 ·
Re: Failing 3585A Spectrum Analyzer
You would be amazed at how much noise can get into test equipment through the power cord... Corcom filters are nice things, but they do have their limits. -Chuck Harris gldinnc wrote:
By Chuck Harris · #49228 ·