[time-nuts] FE-5680A Voltage?

Bob Stewart bob at evoria.net
Thu Sep 12 18:01:43 EDT 2013


Thanks Bob.  I looked at the datasheet again and found that they do like 15-18.  Unfortunately my "18V" supply is a wallwart that supplies "22.5-18V,  2.0-2.5A".  By the ordering, I assume that means it's load dependent.  So, I guess I'll find some Plan B.  

Bob





>________________________________
> From: Bob Camp <lists at rtty.us>
>To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
>Sent: Thursday, September 12, 2013 4:52 PM
>Subject: Re: [time-nuts] FE-5680A Voltage?
> 
>
>Hi
>
>As I recall, 15 volts is sort of the minimum they recommend on most of the variations of the 5680. The internal regulators will probably be happier with 18 volts than with 14.25. You best bet is indeed a 15 V supply. 
>
>Bob
>
>On Sep 12, 2013, at 11:03 AM, Bob Stewart <bob at evoria.net> wrote:
>
>> I decided to order a Rb standard, and I was wondering what the lower limit on the 15V power requirement is?  I have a PSU that will go up to 14.25V and my next closest is 18V.  Should I just get a new 15V PSU before this gets in?  Maybe I can make a quick mod on the big one and take it up to 15V.
>> 
>> Bob - AE6RV
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