List, When perusing HP xtal oscillators on ebay I noticed some cases were marked HP 10811 and the same appearing unit was marked HP 10811-60111. Are both the same for TN purposes?   If so what are the differences? Regards, Perrier

 On 07 March 2018 at 17:50 Perry Sandeen via time-nuts <time-nuts@febo.com> wrote:

 List,
 When perusing HP xtal oscillators on ebay I noticed some cases were marked HP 10811 and the same appearing unit was marked HP 10811-60111.
 Are both the same for TN purposes?
 If so what are the differences?
 Regards,
 Perrier

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See final pages in: http://www.hparchive.com/Manuals/HP-10811AB-Manual.pdf The 60111 variant is a lower spec version intended for use in counters. Bruce > > On 07 March 2018 at 17:50 Perry Sandeen via time-nuts <time-nuts@febo.com> wrote: > > List, > When perusing HP xtal oscillators on ebay I noticed some cases were marked HP 10811 and the same appearing unit was marked HP 10811-60111. > Are both the same for TN purposes? > If so what are the differences? > Regards, > Perrier > > _______________________________________________ > 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. >

There are several models of the oscillator that have been made.  The -60111 was common as the high-stability option in many HP counters and signal generators.  The differences are documented on page 79 of the 10811 data sheet available on the Keysight website: <https://www.keysight.com/main/redirector.jspx?action=ref&cname=EDITORIAL&ckey=1835828&lc=eng&cc=US&nfr=-536900194.536895517.00> David N1HAC On 3/6/18 11:50 PM, Perry Sandeen via time-nuts wrote: > List, > When perusing HP xtal oscillators on ebay I noticed some cases were marked HP 10811 and the same appearing unit was marked HP 10811-60111. > Are both the same for TN purposes? > If so what are the differences? > Regards, > Perrier > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.febo.com%2Fcgi-bin%2Fmailman%2Flistinfo%2Ftime-nuts&data=02%7C01%7Cdavid.g.mcgaw%40dartmouth.edu%7Cce5d8168f4ef4acddcd208d584134af8%7C995b093648d640e5a31ebf689ec9446f%7C0%7C0%7C636560140761894857&sdata=QvX5GAwfmXvkvz%2Bs8232%2FnFmPTgOzZJQVo2w2%2FLHshM%3D&reserved=0 > and follow the instructions there.