This circuit provides a signal that is twice the frequency of the input signal. The circuit was found in the April 1990 issue of Radio Electronics magazine.
This circuit can reduce the voltage of a source by providing regulated adjustable output. The...
Found in a 1992 book, this circuit is intended for operation with audio signals. Equivalent...
This circuit was found in a 90's RF Design. The circuit employs an integrated of the time. The 56 to...