Hi Make sure it works before you pay for it. I've seen a number of broken ones .....
Bob On Feb 20, 2010, at 9:35 PM, Joseph Gray wrote: > Thanks to all for the advice. I agree with Said that a 8560E would be > much nicer. However, I may be able to get this 8590A very > inexpensively. Considering the price difference between this unit and > a newer/better SA, I'm inclined to go with this one. I'm thinking of > this as "training wheels". Once I gain some hands on with a SA, I'll > know better what I want in a future purchase. > > Joe > KA5ZEC > > On Sat, Feb 20, 2010 at 5:20 PM, Bob Camp <[email protected]> wrote: >> Hi >> >> There are "drop in" replacement video sections for some of the older >> instruments. It's not a duplicate of the original, but a form / fit / >> function sort of thing. I have no idea if there is one for the 8590. >> >> They still cost more than most of these gizmos sell for used. >> >> Bob >> >> >> On Feb 20, 2010, at 5:53 PM, Rick Karlquist wrote: >> >>> The CRT's went out of production something like 20 years ago. >>> The factory stock was exhausted long ago. Of course there >>> could be NOS forgotten somewhere, like in a barn with a >>> 1957 Chevy with 50 miles on it :-) >>> >>> Rick N6RK >>> >>> >>> Lux, Jim (337C) wrote: >>>> And make sure the CRT has life left. On a lot of older units, either the >>>> faceplate is burned with the graticule and noise floor, or they're so dim >>>> that you have a hard time reading it. I suspect that replacement CRTs >>>> cost >>>> more than the whole used analyzer. >>>> >>>> >>>> >>>> >>>> On 2/20/10 11:27 AM, "life speed" <[email protected]> wrote: >>>> >>>>> Date: Fri, 19 Feb 2010 17:38:50 -0700 >>>>> Subject: [time-nuts] OT: HP 8590A >>>>> >>>>> Since the list members are familiar with lots of test equipment, I'd >>>>> like to ask what the folks here think about the HP 8590A Spectrum >>>>> Analyzer. Is this model ok? Are there any particular failures I should >>>>> be aware of in this 20+ year old equipment? >>>>> >>>>> I have a chance to buy one locally. The only option is has is GPIB. I >>>>> took a preliminary look at it and it passes the simple test/cal >>>>> procedure from chapter 1 of the Ops manual. This model only goes to >>>>> 1.5GHz, but would still be useful for Amateur use. I do wish it would >>>>> go up to 3GHz, however. I have never owned a spec an, but am somewhat >>>>> familiar with their usage. >>>>> >>>>> Thanks for the input. >>>>> >>>>> Joe >>>>> KA5ZEC >>>>> >>>>> I personally do not like these low-end spectrum analyzers. They have >>>>> poor >>>>> dynamic range and phase noise performance. However, I design microwave >>>>> circuits for a living and can be a test equipment snob. >>>>> >>>>> If you think it is adequate for your purposes, I would at least connect >>>>> it to >>>>> a calibrated signal generator and verify amplitude accuracy is within 3 >>>>> dB. >>>>> Most old spec ans I have seen are way off, even broken. Still show a >>>>> signal >>>>> on the display, but not very helpful. Also check for spurious across >>>>> many >>>>> frequencies. >>>>> >>>>> Clay >>>>> >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> time-nuts mailing list -- [email protected] >>>>> To unsubscribe, go to >>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>>> and follow the instructions there. >>>>> >>>> >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>>> >>>> >>> >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
