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.
