Found in an old Popular Electronics this circuit can also be adapted to be used as a shield. In this version the control can trigger loads from the light that falls on an LDR.
This analog instrument circuit was found in a 1990s William Sheets. The components are common and...
To make a single LED flash in time with your amplifier's music, we have the circuit given below. The...
Found in an old Popular Electronics this circuit can also be adapted to be used as a shield. In...