The SLB0686A integrated circuit used in this application is not currently common. The circuit is from a 90s Elektor, applying only to incandescent lamps.
This amplifier provides a power near to 1W. The supply must be made with a voltage of 9 V coming...
This circuit for voltages up to about 20 V was found in a 90s Popular Electronics. The LED can be...
This is one of the many possible siren configurations for the 555 integrated circuit. We found it in...