A few years ago, I designed a rechargeable Nixie watch. It's a lot
sleeker than the original design. It also has a Micro USB jack for
charging.
http://www.cathodecorner.com/nwl/index.html
I let my son wear one for a couple weeks, and it failed due to corrosion
on the PC board, from saltwater getting inside.
I decided that sealing it would be a smart idea. I looked around the
webosphere, and found that several companies now sell waterproof USB jacks!
JAE, TE Connectivity, EDAC and others have products with a rubber seal
around the shell, for insertion into a milled or molded oblong hole. The
EDAC unit also has mounting ears to keep it from breaking off.
The watch design also had a couple other problems, but I'm addressing
those with a different CPU chip.
I just spent the day redoing the layout of the logic board to make it
take less room in the lower right corner, for an o-ring to surround the
case.
I'll post renderings when it's further along.
--
David Forbes, Tucson AZ
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