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.
