This filter was found in Delco's 1965 documentation. It can be implemented with modern components according to the voltage and current to be regulated.
Pressing S1 the LED glows by a time interval depending on the capacitor. Time intervals in the...
This overtone oscillator can generate signals up to 150 MHz. The crystal determines the frequency and...
Found in a 90's EDN, this circuit generates signals in the frequency range given by the graph. The...