Thanks Paul.  I remember when I joined this group a few weeks(?) ago I was just 
looking for some cheap way to improve the accuracy of my counter.  So I decided 
to build a cheap, entry level GSPDO.  And I bought a 3456A because I didn't 
understand my code had a positive feedback loop..  And I got a 5335A.  And I 
spent many many hours turning Bert's FLL into a PLL.  And now I'm getting a Rb 
standard as a check for the code I'm "perfecting" for my GPSDO.  You guys were 
right.  This time stuff is more addictive than crack.  I just tell everyone I'm 
building a time machine.  =)

Bob





>________________________________
> From: paul swed <[email protected]>
>To: Bob Stewart <[email protected]>; Discussion of precise time and frequency 
>measurement <[email protected]> 
>Sent: Thursday, September 12, 2013 5:31 PM
>Subject: Re: [time-nuts] FE-5680A Voltage?
> 
>
>
>A good supply is desirable wall warts aren't.
>Enjoy your new Rb
>Regards
>Paul
>WB8TSL
>
>
>
>On Thu, Sep 12, 2013 at 6:01 PM, Bob Stewart <[email protected]> wrote:
>
>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 <[email protected]>
>>>To: Discussion of precise time and frequency measurement <[email protected]>
>>>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 <[email protected]> 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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>
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