[time-nuts] FE-5680A Voltage tolerance

EWKehren at aol.com EWKehren at aol.com
Thu Jan 19 20:35:58 EST 2012

As soon as my next unit comes in I will run some controlled tests. This one 
 refuses to show aging with week 9 up in two days. I will use it for other 
tests  before I take it appart.
In a message dated 1/19/2012 8:18:10 P.M. Eastern Standard Time,  
ed_palmer at sasktel.net writes:

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.


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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