[time-nuts] Austron 1250B
Bill Janssen
billj at ieee.org
Sat Aug 30 19:59:49 EDT 2008
corby d dawson wrote:
> Hi,
>
> I am playing with an Austron 1250B and I'd like to add a fine frequency
> adjust.
>
> The data sheet I have on the 1150 oscillator inside indicates that the
> EFC input is an option.
>
> Anyone have a schematic for the 1250B that shows how the 1150 is wired
> in.
>
> If no EFC on this unit I'll be getting rid of it.
>
> Thanks,
>
> Corby Dawson
My 1250A manual shows the EFC being brought out to the rear panel, The
front panel EFC
is "over powered" by the voltage put on the rear panel connection. My
manual has two
interconnection diagrams for the wiring. They both show the BNC
connector on the rear.
The external EFC is spec.d at + or - 5 Volts
Good luck on the B model
Bill K7NOM
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