This circuit was obtained in a technical documentation on SCRs of 1976. The circuit can be assembled with a TIC106 and the supply is made by source or battery. The relay is 12 V, being able to control an external load. The circuit is powered by a battery or source and the sensor switches can be kept away from the device and can be in any quantity. The adjustment can be made by a 47k or 100k trimpot instead of R1.
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