Saturday, January 6, 2018

rock table

This old table is semi homemade and had some kind of secret switch in it, where a magnet would set off a light, which would illuminate one of the rocks.  Well as it was very old, it stopped working.  So I took it apart.

It has a very small mercury switch hooked up to a little swivel with a magnet at the other end of the fulcrum.  This powered a light bulb and a huge series of batteries, I think it was 110 volts or something crazy.  It was all encased in wax which I had to chisel away.  Then I got a tiny LED lightbulb rated for 9VDC and a battery clip for a 9V.  I soldered it all together and reinstalled it, I actually used a chunk of a tupperware bowl to mount some of it then I closed the whole thing up.  Works great and should last damn near forever now.



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