[time-nuts] FE-5680A Voltage tolerance

Ed Palmer ed_palmer at sasktel.net
Thu Jan 19 20:17:52 EST 2012


I would expect the RF circuitry to handle a lower voltage without too 
much trouble.  However, a lower input voltage means it will take longer 
for the ovens to come up to temperature.  Until they stabilize, a lock 
probably won't happen.

Once the unit has warmed up and locked, how low can you go and still 
maintain lock?  As you drop the voltage, the ovens will run closer to 
full on.  Once you reach the point where one or more of the ovens are 
full on, further voltage reduction will quickly cause issues.

Ed


On 1/19/2012 5:45 PM, gonzo . wrote:
> Experiment for the day.
> I thought I'd follow Dons quote and see how tolerant my unit is.
> My benchmark is at 15.5V it locks in about 3min.
> I backed off the supply to 10.8V and the lock time (from cold) is 8min.
>
> I thought this was interesting given several people report they are unable to get a lock when running lower voltage.
>
> ian




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