Maxim has a number of voltage reference chips. I built one using a 2.5 vdc output. 73, Dick, W1KSZ -----Original Message----- >From: Roy Phillips <phill.r1@btinternet.com> >Sent: Jan 12, 2010 3:19 AM >To: Discussion of precise time and frequency measurement <time-nuts@febo.com> >Subject: Re: [time-nuts] I think I've become a Volt nut too. > >Hi Nick >Is it possible to let us have the schematic/details of this SC Magazine >Voltage Reference project, thanks >Roy > > >-------------------------------------------------- >From: "Nic McLean" <mcleann@bigpond.com> >Sent: Tuesday, January 12, 2010 3:12 AM >To: "'Discussion of precise time and frequency measurement'" ><time-nuts@febo.com> >Subject: [time-nuts] I think I've become a Volt nut too. > >> Hi All, >> >> I have been a time nut for some time now. I think I've become a Volt nut >> too! I build the Silicon Chip magazine Voltage reference late last year >> but >> didn't have anything to compare it against so I bought a Fluke 732A DC >> reference standard. >> >> >> >> I there a group I can subscribe to that can help me with this? >> >> >> >> Can I coin the phrase; A man that has one DC Voltage standard knows how >> accurate his meter is, whereas a man with two standards is not quite sure! >> >> >> >> Regards, >> >> Nic >> >> VK2KXN VK5ZAT >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > >_______________________________________________ >time-nuts mailing list -- time-nuts@febo.com >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there.

There are numbers of low power references I like to take 2-3 of these put them together with 3 resistors to average the diff. On Tue, Jan 12, 2010 at 11:26 AM, Richard W. Solomon <w1ksz@earthlink.net>wrote: > Maxim has a number of voltage reference chips. I built > one using a 2.5 vdc output. > > 73, Dick, W1KSZ > > > -----Original Message----- > >From: Roy Phillips <phill.r1@btinternet.com> > >Sent: Jan 12, 2010 3:19 AM > >To: Discussion of precise time and frequency measurement < > time-nuts@febo.com> > >Subject: Re: [time-nuts] I think I've become a Volt nut too. > > > >Hi Nick > >Is it possible to let us have the schematic/details of this SC Magazine > >Voltage Reference project, thanks > >Roy > > > > > >-------------------------------------------------- > >From: "Nic McLean" <mcleann@bigpond.com> > >Sent: Tuesday, January 12, 2010 3:12 AM > >To: "'Discussion of precise time and frequency measurement'" > ><time-nuts@febo.com> > >Subject: [time-nuts] I think I've become a Volt nut too. > > > >> Hi All, > >> > >> I have been a time nut for some time now. I think I've become a Volt nut > >> too! I build the Silicon Chip magazine Voltage reference late last year > >> but > >> didn't have anything to compare it against so I bought a Fluke 732A DC > >> reference standard. > >> > >> > >> > >> I there a group I can subscribe to that can help me with this? > >> > >> > >> > >> Can I coin the phrase; A man that has one DC Voltage standard knows how > >> accurate his meter is, whereas a man with two standards is not quite > sure! > >> > >> > >> > >> Regards, > >> > >> Nic > >> > >> VK2KXN VK5ZAT > >> > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@febo.com > >> To unsubscribe, go to > >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > > > > >_______________________________________________ > >time-nuts mailing list -- time-nuts@febo.com > >To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >