This video demonstrates how to construct a simple sound synthesizer using inexpensive electronic components. Support for this project including a circuit diagram can be found at


20 thoughts on “Sound and Electronics

  1. I just did a similar project this with capacitors, resistors and transistors to oscillate then added the Speaker. Does the 555 enable us to leave out the transistors ?

  2. How would I go about controlling the pitch with a small amount of variable voltage? Like the voltage used to drive a meter on a Geiger counter.

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