Hi Backing off a bit, as long as GPS is doing it’s part ( or your GNSS system of choice …) an OCXO based setup may do as well as / better than your typical “almost dead” used Cs standard.
It is very easy to find a used Cs with a dead tube. It is quite hard to find one with a tube that is fully up to original specs / runs for years. Finding replacement tubes is ( and always has been) a very involved process. There are way more used / dead tubes out there than used / working. Buying a new tube is in the “forget about it” price range. There also is no practical way to rebuild one. You can do this or that trick to maybe get a bit more time out of this or that tube … but maybe not. Thus the pair of dead 5061’s sitting in the basement. Bob > On Mar 14, 2020, at 12:06 AM, Peter Membrey <pe...@membrey.hk> wrote: > > Hi guys, > > Potentially a bit of a loaded topic, but I'm really curious as to what the > consensus is on this. For the research I've been doing over the past few > years, I've been predominantly using an SRS FS-725 (which uses the PRS-10) > disciplined by a Microsemi S650 (with the Rb option, though it never went > into holdover). > > Modern Caesium references are expensive compared to the FS-725, but now and > then more classic Caesium references become available such as the HP 5061A. > These still aren't cheap (actually, not far off a brand new PRS-10) so I was > wondering how do they generally compare with a modern Rb? > > If I have a PRS-10 that's being disciplined by a good GPS source, would I see > any benefit if I replaced the PRS-10 with an HP5061A (particularly in terms > of stability)? > > Thanks in advance! > > Kind Regards, > > > Peter Membrey > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
