Il 2013-01-22 23:19 Tom Van Baak (lab) ha scritto:
Yes, Don, those old quartz bars are rare and amazing:
http://leapsecond.com/museum/gr676b-50kc/
http://leapsecond.com/museum/gr1190a/
What is the function of the (metal?) disc
plates near the two ends of the rods?
Their position seem to be trimmable.
Thank,
Fabio.
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