I agree that dekatrons are fun, and these dekatrons glows so nice, especially these ones with a little different gas mixture that makes them glow purple/blueish. There are many nice ring counters, the strangest one I have come across uses ten (10) pin diodes in series with nothing else between the diodes, but with a small driving circuit around them making them work as a ring counter, the number of diodes in series determines the number of counting steps (the diodes might have been called something else, can't check right now as the book they were in is packed down). /Martin
On Tuesday, 10 September 2013 18:39:15 UTC+2, threeneurons wrote: > This thing can easily become quite convoluted. This dekatron came out, > when transistors were readily available, so it was made to be used with > them. But with 10 common SCRs, and a few descrete components, you could > make a functional, divide-by-10 nixie driving ring counter. I think there > even is such a schematic, in the old GE SCR or Transistor Manual. I have > both books. And with a ring counter, the count length is equal to the > number of stage. Though using this little dekatron is much fun. > > On Tuesday, September 10, 2013 7:19:01 AM UTC-7, Dekatron42 wrote: >> >> 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 dekatron to any number as well as have it reset to any number >> you wish. You could then have it count from any number up to any number you >> wish. >> >> It will be an awful lot of transistors to do this so the need for a >> dekatron might soon go away if you compare with a transistorized counter, >> but it is more fun to tinker with dekatrons than transistors in my opinion! >> >> /Martin >> > -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/7c1bf413-3e03-441a-8102-4cdc50226361%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
