This National Semiconductor circuit uses integrated circuits that are uncommon today. The circuit was obtained in a 90s documentation.
This follower, found in a 1982 documentation, has only one amplification step, but it helps in the...
This circuit can use any comparator or even an operational amplifier. We can use the LM339 and the...
This transistorized oscillator, a modification of the Colpitts oscillator, was found in the...