Nixie counter clock
posted Jan 5th 2008 9:32pm by Will O'Brienfiled under: cnc hacks, misc hacks
[lerneaen hydra] sent in his version of the ubiquitous nixie clock. Rather than gut his counter for the tubes, he used an Atmel Mega88 to pulse the clock to display the time. Additionally, the LED matrix on the case outputs the time in binary. His past projects are worth checking out. He milled the case on his converted CNC mill, retrofitted an old CNC lathe and seems to enjoy putting supercaps in everything (including his clock).
I don’t understand his circuit here:
http://www.lerneaenhydra.net/images/rsgallery/original/scematic.png
It seems there’s lots of things there which waste significant power, especially the design of the circuit to prevent the capacitors overcharging. It seems he’s decided to always load the dynamo, which is going to make it much harder to ride the bike.
Posted at 6:32 am on Jan 6th, 2008 by O Mattos