This circuit was found in an American documentation from the 1980s. The circuit combines filters of different types in a single structure, each of which can be programmed for a frequency.
This inverter amplifier is suggested by a technical documentation from Texas Instruments. The RF...
This circuit was obtained in old documentation, but it is valid for modern triacs that must be...
Found in English documentation, this timer produces an audio signal at the end of the timing. The...