Hi everyone, I have several nixie clocks, including two clocks that I built about 12 years ago that use the mains frequency for timing. I live in a semi-rural area, and during this time of year, I lose power quite frequently due to lightning strikes. This can be just a "blip", or it may last several hours. Either way, I have to reset each clock. Both clocks run off of 9VAC wall-warts.
All I want to do is to keep the logic alive during an outage. My guess is that this is more than just adding in a circuit with a battery - a frequency source may also be needed. Looking at the schematic for the kit, the 9VAC is split - one branch goes to a pin on the processor, and the other to the rectifier and 5V regulator. I'm thinking there might be a way to use some kind of an or-gate to select either the wall-wart, or the "keep alive" circuit. Here is an example of where my lack of electronics experience really shows, but I can build from and sometimes even understand a schematic. So, if anybody has ideas or experience, please let me know. I've looked at several circuits on the web, and have a vague idea of what can be done. Any suggestions will be greatly appreciated! Thanks in advance, Jim -- 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/msgid/neonixie-l/aeae0a90-70b0-4b8f-aa9b-f03e830d7f45%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
