You can contact the designer of that clock, he answered my questions manyvyears ago.
You can also have a look here: https://threeneurons.wordpress.com/dekatron-stuff/ for dekatron driving and explanationd. /Martin On Thursday, 21 September 2023 at 20:18:47 UTC+2 Benoit Tourret wrote: > Good morning, > I'm still with my idea of making a dekatron clock. > > I found some diagrams at http://959radio.co.uk/dekatron.html > > but here is my second question: > in the diagram http://959radio.co.uk/Sec_Counter.pdf there are two A-101 > dekatrons to divide the frequency of 1 Hz into seconds. > each dekatron will pilot its own nixie tube to display the seconds. it's > via an MPSA42 transistor. one per used cathode. > the first decatron will increment the second dekatron each time the > cathode "K0" shines, to increment the tens. > > here we have a vacuum triode, but I want to replace it with a transistor > or perhaps a thyratron; it's a clock, not central heating... > how would you handle this? > > another question, what is x (marked: To other modules)? > > and while we're at it, can you just explain to me how the transition from > 59 to 00 works, via I think Q11 and Q17. but how? and why is G2@DEK2 > involved? > And also if there is (as I think) a small error on the DEK2 Bus, which > should be marked 6 and not 10, and the MPSA42 transistors should be > numbered from Q12 to Q17. > the compute module for the seconds and minutes being exactly the same, we > will stop there. > > P.S. If you think to have a better diagram, don't hesitate. > > Regards, > Benoit. > -- 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 [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/dc31aff6-74dd-4a52-927f-51e0febf9c91n%40googlegroups.com.
