I have found that my FE-5680A of the latest crop will run fine from a +12 volt supply turned up to 13.8 or so with a 5 v regulator for the secondary voltage. This works well for a battery operated reference in the field. W5RCQ
On Fri, Jan 6, 2012 at 5:00 AM, <[email protected]> wrote: > Send time-nuts mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of time-nuts digest..." > > > Today's Topics: > > 1. FEI 5680A Power ([email protected]) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 6 Jan 2012 06:29:26 -0500 (EST) > From: [email protected] > To: [email protected] > Subject: [time-nuts] FEI 5680A Power > Message-ID: <[email protected]> > Content-Type: text/plain; charset="US-ASCII" > > > The test I have been conducting for the last 6 weeks uses a 15V 3A Toshiba > switcher feeding the 5680A through a filter and a 78M05 for the five volts. > For the last 5 weeks I have temperature control and I still se no aging. > As I mentioned before I read 1E-12 over 1000 seconds since Tbolt variations > exceed 1E-11 at a second. Can not explain why I see no aging. Heat sink is > at 37.2 C Once I have established aging I will interface it to a Shera > controller. > Bert Kehren > PS with our cold spell I let the temperature in the lab drop 5 C and the > fan duty cycle went from 39% to 7 %! > > > > ------------------------------ > > _______________________________________________ > time-nuts mailing list > [email protected] > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > End of time-nuts Digest, Vol 90, Issue 38 > ***************************************** _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
