[time-nuts] Supply voltages for the Efratom 105243 10MHz OCXO

Mike Millen mike.millen.uk at googlemail.com
Sun Mar 20 16:11:43 UTC 2011


Thanks, Ed.

Now why didn't I think of that?

M


Ed Palmer wrote:
> Measure the wattage used by the heater at 24V and room temperature.
> This is what's required to keep the oven at the proper temperature.
> Lower the voltage to 20V and see if the heater draws the same wattage.
> As a second check, measure the current drawn at 20V at startup and
> then after warmup.  The difference tells you how much headroom you've
> got 
> until the heater runs full on.
> 
> Ed
> 
> Mike Millen wrote:
>> Many thanks to both of you.
>> 
>> Is it safe to assume that the oven has its own temperature control
>> system?
>> I ask, because I'd prefer to run it from  approx. 20v instead of 24v.
>> 
>> With a controller (& a room-temperature environment) I'm hoping that
>> it would still be
>> operating at its design temperature with a lower voltage.






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