This circuit uses common components at the time of its publication in the 1980s. The circuit can be made with modern equivalent transistors. The input signal is sinusoidal.
This circuit emits a warning sound when night falls. The circuit is from a Hands On Electronics from...
ST Microelectronics has, in its line of low voltage drop linear regulators, the KD1084xx (fixed) and...
This circuit multiplies the frequency of a signal by 100. The circuit was found in the October 1994...