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Create a functional circuit diagram that makes an instrument controlled by brightness of light! This is one of the 48 projects for our Instructables:...
We are selective in our materials for cost, ease of use, and safety due to our high traffic (800,000 visitors annually). So, for our purposes, this de...
We offer optional video segments of each step for this project in the actual exhibit. Here is a compilation of all the steps.
Cut out the Phototheramin Template. Use masking tape to tape it to the chipboard along three sides, avoiding the side with the boxes. Cut along the li...
On the piece just cut off, cut along the SOLID line to create two boxes. Use masking tape to tape the paper on the smaller box (the one with the dotte...
Place copper tape over all the SOLID black lines. Make sure to ONLY cover the solid lines, not the shapes or dotted lines. Now, place a small piece of...
Find the 2N3906 transistor (the number is printed on the transistor). Bend the leads and orient it over the image on the template so its flat edge mat...
Use small pieces of copper tape to attach the 0.1 μf capacitor into its place. It doesn’t matter how it is oriented. Place the flat head of the photoc...
Look on the back of the speaker and find the “+” sign and the wire next to it. Run the wire from the backside of the card through the “+” hole and use...
Stack the two coin batteries on top of each other with the textured bottom of one battery on the “+” smooth side of the other. Place the stack under t...
To play your Phototheramin, flip the card over so that you can see the photocell. Move your hand closer and further from it to change the tone you hea...
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