Unfortunately, the only trigger that has the proper signal levels to commutate a dekatron properly is the Ericsson GTE175M:
http://frank.pocnet.net/sheets/022/g/GTE175M.pdf A dekatron's guides need to see an incoming signal of a very minimum of 60V transition, negative. Its outputs a signal that only goes ~20V, and in the wrong direction. Most triggers need a larger incoming signal. The GTE175M can do the job. All the other ones I've seen can't. In the old days, the interconnecting stage, between dekatrons was usually a vacuum tube triode. The favorite was a 12AT7. Look at figure 4, in this document: http://frank.pocnet.net/sheets/084/7/7155.pdf On Wednesday, January 30, 2013 1:19:28 PM UTC-8, Smiffy wrote: > > > > But this thread is rather timely - just yesterday I went back to trying to > figure out how to cascade A101 Dekatrons to form a clock/calendar. Whilst > I'd figured a simple way to do it, using a tiny microcontroller between > each stage (which also makes it easy to set,) barring the initial timing > source, I wanted to stay away from silicon if possible. Would something > like an XC18 (now that I've located a source,) be suited to this task? > (Sufficiently illuminated, that is.) > -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/744HLDyK7w4J. For more options, visit https://groups.google.com/groups/opt_out.
