B21126E)
This circuit was taken from an old Popular Electronics. The circuit can have its frequency changed from an external signal. The center frequency is given by C1.
This source of some amps for voltages up to 40 V was found in an Italian magazine Elettronica...
This circuit activates an incandescent garden, balcony or showcase lamp when it gets dark, turning it...
ST Microelectronics has, in its line of low voltage drop linear regulators, the KD1084xx (fixed) and...