[neonixie-l] Re: A107 Dekatron

2013-09-10 Thread threeneurons
Added a reset circuit, so it will count from 0 to 5, then reset to 0: http://www.dailymotion.com/video/x14htr2_a107-divide-by-6-nixie-counter-driver_tech Well, actually it transiently hit 6, but then quickly resets to 0, so you never see the 6

Re: [neonixie-l] Another progress in making nixies

2013-09-10 Thread JohnK
Dalibor I posted a copy of this at the Tube Collectors Association group - hope you are OK with that. Congratulations on the work - I have followed your posts and said little. I am very envious. John Kaesehagen Australia - Original Message - From: Dalibor Farný To:

[neonixie-l] Re: A107 Dekatron

2013-09-10 Thread Dekatron42
This was indeed a nice way of solving the reset/set circuit. If I don't misunderstand how the circuit works you can add one transistor between each pair of cathodes on both even and odd branches, and if you also add the possibility to reset/set the flip/flop, it would be possible to set the

Re: [neonixie-l] Re: A107 Dekatron

2013-09-10 Thread threeneurons
Yes, though for the purpose I described, its working just as it should. This is how the asynchronous reset works on most modern logic chips. If you want a 4017 to count from 0 to 5 (Q0 to Q5), you connect the reset to output Q6. But if you stick a small cap across that 10K resistor, that's

Re: [neonixie-l] Another progress in making nixies

2013-09-10 Thread NeonJohn
Yes indeed, a very nice job. I'm impressed John On 09/09/2013 11:26 PM, Michel wrote: Wow, that is amazing! I actually like the envelope shape :-). Maybe it's a bit too big for a 6 digit clock, but it would look brilliant for a single tube nixie clock! Well done! -- John DeArmond