Step 1: Materials Required
2. 1/4" phono jack
3. Piezo element
7. Duct Tape
2. 3/8" drill bit
3. 1/8" drill bit
4. Soldering Iron
5. Can Opener
Step 2: Eat Your Soup
Make sure to keep the top when you open the can. The top will be used in the next step.
Step 3: Attach the 1/4" Jack to the Top
Take the top of the can and hold it in a vise so the top is stable. Use the drill and drill a 3/8" hole in the center of the can top and insert the 1/4" jack and make sure the nut is tight.
Step 4: Drill Hole in Side of Can for the Wire
Step 5: Insert the Piezo
To extend the wires, first strip the new wires. Then apply some solder to the tips of the new wires and the wires on the piezo. Then heat up both tips and hold together and let cool. Make sure the joint is strong.
In order to make sure the two wires don't short out, use electrical tape. First wrap electrical tape around one wire, and then wrap around the other in order to keep both wires from touching.
Step 6: Solder the Piezo to the Jack
*** Be careful not to cut yourself on the edges of the can ***
Next, solder the wires to the jacks. It is suggested to first put solder on the jack terminals and on the ends of the wire and then reheat the solder to attach the wires to the jack.
Step 7: Tape Piezo Inside the Can
Step 8: Cut Styrofoam to Use As a Filler
Once the styrofoam is cut, hold everything in place and tape up the bottom of the mic.
Step 9: A Functioning Microphone!
For a quick audio demo, watch the video below.