This TTL counter was found in the March 1991 issue of Radio Electronics magazine. The circuit is part of a larger project and must be powered by a 5V voltage.
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...