The crystals are cheap these days whether a colorburst or other generic types. My guess is they picked that frequency that they are readily available and they wrote the code using that number to make it difficult to clone...lol... but it was probably just a choice when they developed the device. I am not connected to this company but am just a user of some of their products. I do not mind paying them for their time and effort to produce these cool devices. I bought a few for around 8 bucks each and used them for a few projects.
On 27 June, 14:21, Adam Jacobs <a...@jacobs.us> wrote: > It's a clever idea, shouldn't be too hard to implement in an equivalent > AVR chip (Tiny12) or whatever. At $10 a pop, given the number of clocks > I have, it'd definitely be worth writing some simple code. I was already > planning on doing the 60hz generator uC code, the colorburst crystal > surprises me, though. Is the colorburst crystal higher accuracy than a > standard cheap 8mhz or whatever? The only thing I know of colorburst > crystals from is that they are popular in 80m homemade CW rigs for > obvious reasons. I also like the sync to line frequency option. I might > add a switch, since they are initially only running this experiment for > a year. If the year ends and they discontinue the experiment, I could > flip the switch and go back to line frequency. > > -Adam > > On 6/27/2011 11:12 AM, neutron spin wrote: > > > > > You are quite welcome. The chip is actually a microcontroller that > > coded to produce the 60, 50 or 1 Hz signals. The 60 Hz version will > > flip back and forth between the grid freq and the micro. I think it > > is a Microchip MCU but not sure. Simple way of ensuring the clock > > always has a clock signal. The color burst crystal is still subject > > to minor drift but should function well I assume. I am guessing > > perhaps around 10 to 20 PPM drift. > > > On 27 June, 12:59, Larry<unmitigated_f...@earthlink.net> wrote: > >> I recently completed a Kabtronics Nixie clock that uses line > >> frequency. Now I'm going to have to add a 60Hz generator to it. > >> Thanks for the link. > > >> On Jun 26, 11:05 am, neutron spin<mrstan...@charter.net> wrote: > > >>> It's a conspiracy between Elm electronics the FERC. > >>>http://www.elmelectronics.com/ebench.html#Oscillators-Hide quoted text - > >> - Show quoted text -- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
