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.
The advantage of this circuit lies in the fact that it does not need a negative source to generate...
We found this circuit in the Linear Applications Handbook of the 1994 National Semiconductor. The...
This regulated power supply can provide currents up to 1 A to a load. The transformer may actually have...