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index
555 touch sensor
air mike
amplify your toy
box your toy
circuit sniffing
clock tickling
contact mike
electret mike
hack the clock
laying and hacking
laying of hands
light theremin
make a cable
mapping
pickup
piezo driver
resistors
soldering
sudomini
synthesis
tape head
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Use a piezo disc as a driver.
Use a piezo as a little speaker.
- mini amplifier with output jack for external speaker;
- piezo-electric disc;
- plug to match amp output;
- small audio output coupling transformer (RS 273-1380 or equivalent);
- few feet of lightweight speaker cable or stranded hookup wire;
- electrical tape;
- can of plasti-dip;
- small spring clamps;
- sound source, such as a CD player and cable to connect it to the amp input;
- optionally a female jack to match the plugs you are using.
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