Posted by Tim LaFave on October 20, 2015 at 12:14pm
Here's the recipe for a really fun project you can do for really cheap in about an hour or two:Take a can, in this case, an aluminum salt shaker; a 1/4" jack, a 500k volume pot, some wires, a piezo disk and a volume knob.Mark and drill holes for the jack and the volume pot.Cut and solder your positive and negative wires to the piezo disk. Connect them to the jack and volume pot. The negative jack wire goes to the negative lug on the volume pot, which is the right-hand side lug when viewing the bottom of the pot. The positive jack wire goes to the middle lug on the volume pot, while the positive wire (the wire soldered to the inside of the piezo disk) goes to the left-hand lug and the negative wire (soldered to the rim of the piezo) goes to the ground, or right-hand lug. Also, you can solder a small negative wire from the ground lug to the bottom of the pot to ground all of the negative connections.Screw in your jack and volume pot to the can, and add a knob to the volume control.Stuff a paper towel underneath the piezo disk, to help control feedback and echo.Screw on the lid, and there you have a really cool retro, hack-wired microphone!
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