The Opto-Thermo Alarm with IC 741 & 4001 is nice circuit,It use IC 741 and IC 4001 for Light detector and Thermo detecto.
Circuit Opto-Thermo Alarm with IC 741 & 4001
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This entry was posted on Thursday, May 17th, 2007 at 11:43 pm and is filed under Audio - Alarm, Circuit diagram, Lighting, meter.
