Vactrols, or both an LED and a light depending resistor (LDR) in a light-tight housing, are found in analog music electronics circuits like audio compressors, voltage-controlled amplifiers (VCAs), ...
This circuit lights the Premises of House around 6 pm and turns off in the morning. Its working is fully automatic and uses the light sensing property of LDR. Unlike other LDR based circuits, it will ...
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