This circuit is suitable for use in radio receivers to improve the quality of weak signal stations. The circuit was suggested by the May 1994 issue of Electronics Now magazine.
Found in a 1970 documentation this circuit makes use of components still common in the market. The...
Found in old documentation, this circuit makes use of amplifiers of the time, uncommon today. Next...
This circuit was found in ancient American documentation. Equivalent operational amplifiers can be...