This complex circuit was found in the 1993 edition of the Electronics Experimenter's Handbook. Most of the components are still common today.
We found this circuit recent English documentation. The circuit uses a common transformer and can...
This 90's Electronic Design circuit converts the period of a signal into a frequency. The...
This circuit, shown in the figure, can operate from 4 to 100 MHz, based on a 2N2222 transistor or...