Siren system circuit


Posted on Sep 22, 2012    4945

The circuit uses a CA3130 BiMOS op amp as a multivibrator to control the siren's rate. A CA3094 used as a VCO is followed by a CA3082 transistor array used to drive a speaker. A `Manual` or `Auto` mode switch allows the user to select either intermittent or continuous siren operation, respectively.


Siren system circuit
Click here to download the full size of the above Circuit.

In addition, three switches are available that control "Mode", "Attack", and "Rate".




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