They make mini UPSs. You sometimes see them cheap on clearance. http://a.co/d/4QtorbJ
Quick and dirty. No idea how your time keeping would suffer running on that. But a back up battery circuit and a diode to 'OR" the power to just your clock's logic and an xtal time source would be the preferred solution. Don't know if you can still get MM5369s any more. May be easier to program yet another MCU (atmel or pic) to generate the 60/50/30/25 hz or whatever you need for your clock. carl -------------------------------------------------------- Henry Carl Ott N2RVQ hcarl...@gmail.com On Wed, Sep 5, 2018 at 1:32 PM William RUTLAND <kn4...@gmail.com> wrote: > Jim, > > I, too, keep my clocks plugged into a UPS unit. But my clocks are all in > one room! Might get a tad expensive to pair a UPS unit with each clock. > > William > > On Wed, Sep 5, 2018 at 11:34 AM blkadder <mgb1...@bellsouth.net> wrote: > >> >> Hey Jim, >> My response might not be what you are looking for, but what I did to keep >> my clocks alive is I have them plugged into a small UPS. Here in Florida, >> during this time of year we get storms all the time. I was actually able >> to pick up used UPS units for next to nothing at yard sales, etc. I have >> replaced the batteries and have not had to set my clocks since last years >> hurricane that took out power for about a week. >> >> I do look forward to see what our designers have come up with. >> Ron >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to neonixie-l+unsubscr...@googlegroups.com. >> To post to this group, send email to neonixie-l@googlegroups.com. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/a8ff1966-e1d6-497b-9bc2-18310a6c31bf%40googlegroups.com >> <https://groups.google.com/d/msgid/neonixie-l/a8ff1966-e1d6-497b-9bc2-18310a6c31bf%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to neonixie-l+unsubscr...@googlegroups.com. > To post to this group, send email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/CABGD8hX6_QofBbVwhP9R8rOw%3DxmvcEg7srDbeFhN9OL9zcWSdw%40mail.gmail.com > <https://groups.google.com/d/msgid/neonixie-l/CABGD8hX6_QofBbVwhP9R8rOw%3DxmvcEg7srDbeFhN9OL9zcWSdw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAP_hP_TZop4m48fSKBpcrfncLWQFY21TaErMiC9kkwymB%3D2Yew%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
