Back when this group was on Yahoo, a few (very few) of the members had achieved the Holy Grail of nixie projects - All Tube Nixie Clocks ! Cory was one of them. A couple of years ago, his sight was down, and stayed down for some time. I just noticed its back up again. So here are links to "all-tube", and working, clocks that I'm aware of:
http://www.radar58.com/projects/tubeclock.html Cory Heisterkamp's clock. The counters are binary flip-flops. One twin triode per flip-flop bit. Decoding/driving is done by the flip flops turning on neon bulbs, which in turn flip on combinations of CdS photocells. They in turn turn ON the proper nixie cathode. http://www.sgitheach.org.uk/nixie3.html Grahame Marsh's trigger tube clock. This one uses cold-cathode gas trigger tubes arranged in ring counters, so no decoding is needed. Just add a shadowing set of triggers to drive the appropriate nixie cathode. http://selectric.org/tubeclock/index.html Jim Forbes (David's Twin) Neon Stack clock. Technically not a nixie clock, since no nixies, but its tube based. Basically, most of the way up to being Cory's clock. http://wwwhome.cs.utwente.nl/~ptdeboer/ham/neonclock/ Pieter-Tjerk de Boer's Clock based on neon bulb ring counters. Each neon has a CdS photocell that's tied to its corresponding nixie cathode. http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/Digital-Roehrenuhr.htm Friedhelm Bruegmann All tube monster - I believe it counters are binary (flip-flops), and the decoding is also done with additional tubes, in AND/OR combinations. All, but the last one are made by known group members. At least when we back at Yahoo. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
