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HP Forums / Not HP Calculators / Not remotely HP Calculators v / Building a clock the hard way

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Building a clock the hard way
04-07-2016, 06:12 AM
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vk6ti Offline
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 		Posts: 105
Joined: Sep 2014
Building a clock the hard way
Some forum members may find interest in Nixie clocks.
Some time ago I built this cool clock. Not wanting to go down the cumbersome dekatron path, and avoiding the ebay PIC multiplex kits available, I decided to build my own. Based on garden variety chips ( flipflops and decade counters ) and a load of HV switching transistors, and multiple circuit board attempts, find assembled clock.
Note the extra last digit showing 1/10ths of a second, I know it's completely useless, but it gosh it looks good to watch. Keeps relatively good time based on 50Hz mains cycle.
( original concept HH:MM from "Mikes Electric Stuff" site, well worth a visit

Ray
   
   
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Messages In This Thread
Building a clock the hard way - vk6ti - 04-07-2016 06:12 AM
RE: Building a clock the hard way - vk6ti - 04-07-2016, 09:20 AM
RE: Building a clock the hard way - jebem - 04-07-2016, 11:25 AM
RE: Building a clock the hard way - vk6ti - 04-07-2016, 10:31 PM
RE: Building a clock the hard way - TASP - 04-07-2016, 02:18 PM
RE: Building a clock the hard way - vk6ti - 04-09-2016, 03:24 AM
RE: Building a clock the hard way - BobVA - 04-10-2016, 10:50 PM
RE: Building a clock the hard way - TASP - 04-11-2016, 03:34 AM
RE: Building a clock the hard way - 4ster - 04-14-2016, 02:18 PM
RE: Building a clock the hard way - TASP - 04-14-2016, 03:41 PM



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