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.
Found in a Popular Electronics from the 90s, this circuit reaches 100 kHz and battery power is...
This high current regulator with low voltage drop was found in the datasheet of the used...
This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The...