Created by
Created February 21, 2013
Last modified March 11, 2015
Tags 7555   astable-oscillator   light-theremin   photoresistor  


Not provided.


This circuit produces a wide range of audio frequencies. Play with light and shadows on the two photo resistors to produce swipes, strikes and mid range wobbles. For base ranges, increase the capacitance (C2&C3) or resistance (R2 and R3).


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