From the Desk of Weekend Projects

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Weekend Projects builder Matt writes in with this great story about his foray into electronics, starting with one of my favorite projects from our series, the Light Theremin.

When I saw the Light Theremin, I decided I would give it a try. I took a trip to RadioShack and bought the necessary parts. When I got home, it took less than an hour to put it together and get it working. I brought it into work the next day and entertained my coworkers with it and could even explain the way the 555 timer was being put to use (astable mode!). I now keep it on my desk as a fun thing to talk about and I’m trying to decide what my next project should be…

Thanks for sharing your story, Matt. And we look forward to that next project of yours. Want to share your Weekend Projects mod with others? Email us your story and some pictures.

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0 Responses to From the Desk of Weekend Projects

John on November 12th, 2011 at 9:43 am said:

It’s nice to start down that road. This was one of the first things I ever made when I was a kid, and I think I soldered mine together into an opaque housing from a wristwatch.

A suggestion for your schematic though; there is no reason you have to label the pins on the IC in order, you can make it much more readable if you arrange the pins in logical order. And you don’t need the little jump every time 2 wires cross but don’t intersect, it just looks messy. If they cross without a dot, there’s no connection.

Also, where is the second photocell in your schematic? Are they just in series? Why is there a 10uF cap in series with the speaker?

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