[time-nuts] NIST frequency doubler
Dr Bruce Griffiths
bruce.griffiths at xtra.co.nz
Sat Jul 7 22:37:14 EDT 2007
The schematic for a NIST developed, low phase noise frequency doubler is
This device appears to perform significantly better than the Wenzel FET
doubler specifications at least in the flicker noise region.
With suitable modifications to allow individual adjustement/selection of
the bias for each JFET a pair of the more readily obtainable J310's can
be substituted for the U431.
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