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. Content by Scott Typos by Siri > On Nov 27, 2014, at 7:01 PM, Bob Camp <kb...@n1k.org> 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 <shali...@gmail.com> 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 <scmcgr...@gmail.com> 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)" < >>>> drkir...@kirkbymicrowave.co.uk> 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 -- time-nuts@febo.com >>>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.