Hi > On Nov 27, 2014, at 6:31 PM, Scott McGrath <[email protected]> wrote: > > You are correct I was referring to the 'instrument' version of the 10811A > with the edge connector. > > There are a lot of 10811A variants out there but the edge connector version > was used in most HP instruments with an ovenized time base of that vintage. > > It's worth buying dead option 1 instruments as they will have either a 10544 > or 10811A as the time base mount point and electronic interface are > standardized so upgrades are easy.
That of course *assumes* that the OCXO is still in there. Most of the time it’s still there. I’ve seen a couple of sellers who (maybe) “part out” dead gear. It may have been done upstream of them, who knows. Bob > > > Content by Scott > Typos by Siri > >> On Nov 27, 2014, at 7:01 PM, Bob Camp <[email protected]> wrote: >> >> Hi >> >> In this case I suspect he’s referring to the version with the edge connector >> on it. That’s the one most instruments use rather than the connector only >> version or the “double oven” version. I believe that makes it a 10811A >> rather than a 10811B. >> >> There are a multitude of details here: >> >> https://www.febo.com/pages/hp10811/HP10811AB-Manual.pdf >> >> There are indeed other versions that came out after the manual. >> >> Bob >> >>> On Nov 27, 2014, at 5:48 PM, Didier Juges <[email protected]> wrote: >>> >>> "Just remove the TCXO the 10811 just plugs in" >>> >>> Note that there are many different versions of the 10811. I am familiar >>> with at least two incompatible mechanical configurations: one is >>> connectorized and the other is not. >>> >>> Didier KO4BB >>> >>>> On Thu, Nov 27, 2014 at 5:43 PM, Scott McGrath <[email protected]> wrote: >>>> >>>> Just remove the TCXO the 10811 just plugs in, you will need to add the >>>> heater oven indicator wiring and LED indicator which is usually over the >>>> power switch The power supply includes the oven supply already >>>> >>>> Content by Scott >>>> Typos by Siri >>>> >>>>>> On Nov 27, 2014, at 5:38 PM, "Dr. David Kirkby (Kirkby Microwave Ltd)" < >>>>> [email protected]> wrote: >>>>> >>>>> The HP 5342A has an optional oven oscillator. I just bought one of >>>>> those counters, but mine has a TCXO and is about 50 kHz off at 10 GHz. >>>>> I'm sure I can trim it closer than that, but if possible I'd like to >>>>> stick an oven oscillator in it. Does anyone know what is involved? I >>>>> have at least one 10811A oscillator here that I could stick inside, >>>>> but does it need any more, or just the oscillator? >>>>> >>>>> Someone said the oscillator should be an 10544-60011, but a 10811A is >>>>> backwards compatible. >>>>> >>>>> Dave >>>>> _______________________________________________ >>>>> 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.
