[time-nuts] FE-5680A Voltage?

[Bob Stewart]

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 <paulswedb at gmail.com>
>To: Bob Stewart <bob at evoria.net>; Discussion of precise time and frequency measurement <time-nuts at febo.com> 
>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 <bob at evoria.net> 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 <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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