[time-nuts] GPSDO won't lock: OCXO aged out?

[paul swed]

Newell it will give you a hint as to how bad is bad.
Granted at 5V the varicaps may be at minimum. Use a 2K R. That should be
pretty safe.
Good luck.
Regards
Paul
WB8TSL

On Tue, Jan 12, 2021 at 12:01 PM Scott Newell <newell+timenuts at n5tnl.com>
wrote:

> At 08:14 AM 1/12/2021, Bob kb8tq wrote:
> >Hi
> >
> >The OCXO on the 73090 does not have an internal mechanical trimmer.
> >It is a 0 to 5V tune range.
>
> Thanks! That saves me the effort of opening the can.
>
> I think I'll cut the EFC trace and see how far I can pull it past 5
> VDC (with a series resistor to limit current).
>
>
> --
> newell  N5TNL
>
>
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