This integrating circuit multiplies the time that can be obtained with a 555 timer. We find it in an Electronic Design from the 90s. The circuit uses components that are still common today.
We found this circuit in a 1988 documentation, but all the components used are still common today....
This variable high frequency oscillator circuit was found in an old English documentation. The...
This crystal fundamental frequency oscillator can operate at frequencies up to a few tens of...