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Step 5Build it
1. Start by cutting the tube down to about 24". (I learned the hard way that you need a shorter tube as you saw in the video)
2. Using the tube as a guide, cut out a piece of plywood the diameter of the opening of the tube. and tape it to the bottom of the tube. Then cut out a 6" hole in the center of the plywood.
3. Securely tape the speaker to one end of the tube.
4. Wire your audio amp to the speaker and install the Tone Generating software on your laptop.
2. Using the tube as a guide, cut out a piece of plywood the diameter of the opening of the tube. and tape it to the bottom of the tube. Then cut out a 6" hole in the center of the plywood.
3. Securely tape the speaker to one end of the tube.
4. Wire your audio amp to the speaker and install the Tone Generating software on your laptop.
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