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Clap Switch (Simple, illustrated, you can build it)
OscilloPhone: Use your Smartphone as an Oscilloscope / Signal Generator
Super Simple Electrocardiogram (ECG) Circuit
Make Muscle MIDI Music!
Spark gap transmitter/Marconi receiver - the simplest wireless transceiver
Electrocardiograph & Heart Rate Monitor
DIY Muscle Sensor / EMG Circuit for a Microcontroller
stereo amplifier pedal
Posted:May 9, 2009
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