This circuit emits a warning sound when night falls. The circuit is from a Hands On Electronics from the 90s. The Sensor is a common LDR and R6 adjusts the trigger point.
This circuit indicates whether a cable or wire is energized by simply approaching its antenna. The...
This FM transmitter was described in the Radio Electronics magazine of June 1963. It operates in...
September 2016 - It can be purchased by Mouser Electronics the new board from Texas Instruments...