[time-nuts] Curious, how many t-nuts have 5065A
skip.withrow at gmail.com
Fri Feb 23 00:05:42 EST 2018
Pete Lancashire was wondering how many HP 5065As are out there. I
don't know the exact number, but I know there are a lot. I think
Corby (or someone) had a list of serial numbers at one time.
I will confess that I do have one - and love it. It is a very old
unit that doesn't have any updates other than a few new electrolytics
and a finer adjustment on the C-field.
Attached is a plot of it for the last three days. I have not touched
it in several months. It is not in a particularly well controlled
temperature environment (the yellow line on the graph), and it moved
110ns in three days (4.23x10E-13 frequency error). And most of the
noise on the purple line (5065A frequency) is due to the GPS reference
(NTBW50AA does not have a great antenna as indicated by the bottom GPS
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 35863 bytes
Desc: not available
More information about the time-nuts