IRIG-B generator/displays candy had on eBay for very little money. There’s one currently listed for about $10.
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F202337773272 Feeding one of these with the aforementioned NTP to IRIG – B is the easy solution. And they look great at the top of the rack! I have a couple of these, and they drift significantly more than I would like, about 2 to 3 seconds a month. If anyone has seen the manual to one of these, I’d love to see a copy, as the input on the back are unmarked. > On Jun 15, 2018, at 14:38, Tim Shoppa <[email protected]> wrote: > > At work we have POE LED clocks, I think 2.5", circa $400-$500. So your $300 > price you've been seeing is about right. > > In terms of homebrew: > > I bought a bunch of 3.5" high green Seven-segment displays 10+ years ago. > Cheap, really cheap at the time! > > Was always intending to build a 6-digit clock with them but never got > around to it. > > I have been having fun with ESP8266's (small cheap microcontrollers with > WiFi) for other projects. If I were to do a NTP clock it would use the > ESP8266 and NTP protocol over Wi-Fi. Not real NTPD, just NTP UDP packets > plus a teeny bit of local dead reckoning. > > Tim N3QE > > On Thu, Jun 14, 2018 at 9:15 PM, David Andersen <[email protected]> > wrote: > >> I'd hoped that ebay or aliexpress would yield a bounty given how seemingly >> simple these are, but I'm drawing a blank (and finding a lot of $300+ new >> options). Anyone have a favorite source for either flat wall-mount or >> rackmount displays that will pull from an NTP/SNTP/whatever server? >> >> (if wall-mount, PoE is optimal). Used good. Cheap good. Looks good next >> to my random collection of antiquated time measurement gear provides >> amusement value but isn't really critical. :-) >> >> Thanks! >> >> -Dave >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/ >> mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://lists.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://lists.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
