Here's the complete NixiChron schematic. After Jeff stop actively selling that clock he was fine with providing the schematic to those who wanted it. So no issues with impropriety.http://goo.gl/f9UW4M
On Thursday, May 12, 2016 at 3:12:12 PM UTC-7, Nick wrote: > > On Thursday, 12 May 2016 19:30:12 UTC+1, Niek wrote: >> >> If that's indeed the issue, it's not surprising that the chip would break >> after a while, though it's still a little surprising that it would lead to >> this behavior. But I guess it's possible if the code isn't doing any sanity >> checks on the data it's receiving and perhaps even relies on it to >> determine when to stop writing into an array or something like that, >> overwriting other parts of the memory. > > > The MAX232 is powered - its a schematic error - in the older (original) > NixiSat the OnCore unit connects via J4 - the upgraded unit uses an > external Haicom HI-204III GPS puck that uses J3 and the MAX232 - works just > fine. > > The bottom line is that the schematic has problems, i.e. the lack of level > shifters, however that should not detract from the fact that Jeff made > wonderful clocks, and I for one am very grateful that I've had years of > pleasure from my NixiSat... > > Hopefully, it'll keep going for many more years yet ! > > Nick > -- 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/4fba8381-821b-4158-b560-bd48231bbcae%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
