[time-nuts] Used Spectracom
Joseph Gray
jgray at zianet.com
Thu Jan 17 00:20:29 UTC 2013
Good info. I'll file it away in case I ever pick up a unit cheap.
Joe Gray
W5JG
On Wed, Jan 16, 2013 at 1:11 PM, Charles P. Steinmetz
<charles_steinmetz at lavabit.com> wrote:
> That's what I did with my 8163. You need to add a Wenzel-style two-PNP
> squarer and use the squarer output to replace the internal 10 MHz VCO output
> (point "BB" on the 8163 schematic). Removing the RF Amplifier PC card made
> plenty of room for the added board. The existing two-PNP squarer on the
> Local input is marginal, so I modified it to conform to the one I added. I
> disabled the VCO and the phase comparator that drives it by removing
> appropriate power supply feeds, and used the 60 kHz antenna connector for
> the 10 MHz reference input. Extremely simple, and it works perfectly.
>
> Best regards,
>
> Charles
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