Is there something about you we should know, Morris? John S
On 5 Jan 2014, at 00:35, Morris Odell wrote: > Hi all, > > I was in New Zealand recently and visited the Clapham National Clock Museum > in a town called Whangarei. One of the items there caught my eye, it was a > German skull clock from the 1920s as seen here. I thought a Nixie version > would be just the thing for my office at the Institute where I am a senior > physician. A couple of weeks of intensive work over the summer break and here > it is: > > http://youtu.be/6rHZqU2x3EA > > The skull is a plastic anatomical model which has been surgically modified to > fit two dekatrons in the orbits. There's also a small speaker in the cranial > cavity to sound the ticks and the Westminster chimes. The devices in the > nasal cavity are a LED and a PIR sensor to switch on the display only in the > presence of warm live humans. The red button on the front of the box is the > alarm switch. The time display is made using Russian IN-17 tubes multiplexed > in 3 groups of two. In the box is a PCB with an AVR micro and appropriate > power supply and interface electronics for the tubes and speaker. The > dekatrons are purely ornamental and not part of the timebase as in previous > clocks I have made. As this clock is going into an internal office there's no > GPS receiver included so it is set manually and gets its timing from the > mains frequency. > > Happy New Year to all, > > Morris -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/A1898C42-C99E-47B5-901B-5F932E2ACADE%40jsdesign.co.uk. For more options, visit https://groups.google.com/groups/opt_out.
