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/f8554fd9-4939-4093-911f-d0886b1be9ddn%40googlegroups.com.
