Hi Joe, I have the same feeling in developing my clock. I first wanted to use only realy's in the conters, utill I discovered that the number of swichings should be far beyound the life expectance of the relay's. Now I think only the hours and minutes counters with relays and the rest by dekatrons (I have some 12 counters!) Hopefully they have a long enough life. Your idea to use a µP as a back-up realtime clock sounds fine, however My main clock is a verry stable TCXO of 4 MHz that I have to devide to quater seconds. The first stage has to be a TTL or CMOS divider, followed by a Elesta EZ10B and some Sylvania 6879's. Then a GS10B and a GZ12D for the seconds and the same for the minutes.
It should be nice to get soem more information about your µP setup as time correcting element. eric -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Joe Croft Sent: dinsdag 9 augustus 2011 13:30 To: [email protected] Subject: Re: [neonixie-l] Re: Neon ring counter nixie clock Thank you! I really had to swallow hard to put the processor on the clock, but it was needed. It also added a little eye candy with the quarter hour marker lamps as well as being able to add in a rtc so that it could survive power interruptions. If you wanted to do some real serious play with an xacto knife and some wire, you could rewire the switches on the board to allow you to set it w/o the processor and then just let it run with no processor. Maybe on the next run of boards I'll consider making the jumpable. I kind of remember that was much easier to say than do :) -joe On Monday 08 August 2011 21:44:34 neutron spin wrote: > Great!...Sorry but I really did not look at the schematic....This is a > nice design...I will order the PCB soon...I know the neons do not > always fire at the right time...or when you want them to fire > (fickle).....this combines old school design with modern > technology...besides who wants a clock that is prone to error?.....:) > > Robert W8UUU > > On Aug 8, 9:34 pm, Joe Croft <[email protected]> wrote: > > Nixieneon started out just rings and at it's heart the CPU just > > keeps the rings honest by resetting them to the correct time every 5 > > minutes > > > > The rings are quite fickle > > > > -joe > > > > On Monday 08 August 2011 19:47:45 neutron spin wrote: > > > Thanks for the info...They really look nice but I was thinking of > > > a design just using neons as ring counters with no > > > microcontroller...old school...regards > > > > > > Robert W8UUU > > > > > > On Aug 8, 6:26 pm, Nicholas Stock <[email protected]> wrote: > > > > Have you checked outwww.nixieneon.com?I'vebuilt a few of these > > > > and they're great clocks.... > > > > > > > > Nick > > > > > > > > On Mon, Aug 8, 2011 at 3:17 PM, neutron spin > > > > <[email protected]> > > > > wrote: > > > > > Hello All, > > > > > > > > > > Looking for some ideas or plans for a neon ring counter nixie > > > > > clock. I have some IN-12's that are very anxious to be born > > > > > again in a neon ring counter clock....thanks... > > > > > > > > > > Robert W8UUU > > > > > > > > > > -- > > > > > You received this message because you are subscribed to the > > > > > Google Groups "neonixie-l" group. > > > > > To post to this group, send an email to > > > > > [email protected]. To unsubscribe from this group, > > > > > send email to > > > > > [email protected]. > > > > > For more options, visit this group at > > > > > > > > > >http://groups.google.com/group/neonixie-l?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
