I have an interesting 1MHz crystal that I got a number of years ago when I was at the HP Santa Clara Division (Hertz Castle is what they called the place). It is an HP P/N 5080-0031 1MHz crystal, gold plated, and in a glass vacuum tube. I'll have to take a picture of it and post it... It's really quite pretty!
Daun -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Van Baak Sent: Tuesday, May 08, 2007 9:37 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock > Just finished reading all of it; still have that feeling (Will Smith, > Independence Day) "I have go to get me one of these!" > > What would really sweeten the deal; tube version of 10811 to go with it. > Phase locked of course! :) > > Jack I think all the old hp 100-series frequency standards were tube based. Even the 100 kc crystal was mounted inside a conventional vacuum tube. The old GR quartz standards had tubes: http://www.leapsecond.com/museum/gr1103a/ So these would make a nice companion to that all tube nixie tube clock. The model hp 101A was hp's first "transistorized" standard; after that came the 103 104 106 107 105 105-44 108-11 /tvb _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
