Multi-channel detector circuit

Published:2011/4/12 4:13:00 Author:Nicole | Keyword: detector | From:SeekIC

Using any fire, smoke, heat or other detectors and connecting to the primary relaxation oscillator, using GE-X5 thyristor to push 8Ω loudspeaker emits keke . Loudspeaker, 22.5V battery, 100kΩ and on/off switch are in series with the both ends of thyristor; connected a 1μF/25V capacitor to the both ends of thyristor-loudspeaker. Such as using cadmium sulfide photocell can detect the flashlight light beam of interloper.



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