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Circuit for a simple audio oscillator
Generates and audible tone when the switch is set to on. A variable resistor can be used to vary the frequency at which the circuit oscillates and hence the pitch of the output
[WARNING: Build an operate this circuit at your own risk! The author accepts NO RESPONSIBILITY for injury, loss of life or any form of damage caused as a result of following the instructions on this page. While this circuit is probably safe to operate, you should not attempt to use it without first having an understanding of electronics. This circuit HAS NOT BEEN TESTED and is not guaranteed to work correctly if at all]
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Contents
Audio oscillator