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As promised, here are some pics and a small video of my light show.

The controller for the lightshow is from  It is a 16 channel controller, but I blew out a couple of channels so they stay lit all the time.  Here is a pic.


The light controller is in the center and it feeds all the light plugs.  The sockets are just screwed onto a 2X8 board and is set into a rubbermaid tub.  This worked pretty well in the rain.  I cut slits in the side of the tub to run the wires.  No water got into the tub whatsoever.

I also built a FM transmitter to play the song to car radios.  I made a sign.


The transmitter I used was a ramsey FM 10C

It is a nice kit.  I would recommend it for this application.


 The software I used is Vixen.

Now I need to get more songs to play.

Another day, another repost from another project I'm working on. This time, from White Star Balloons, the world's lightest quad helix antenna.




Thanks to some design documentation here: and some help from the balloon community, we had some baselines for creating such an antenna. We still went through *quite* a few revisions.  We went through 3 revisions that didn't work, and one which works pretty darn well!

Here are the antennas which didn't work:

...continue reading "How to Build the World’s Lightest Quadrifilar Helix Antenna"



Sign up for the class here: