This receiver, whose tuning range depends on L1 and L2, was found in the 1992 special edition of Radio Electronics Experimenter. The circuit is relatively simple and has good sensitivity.
This circuit was found in the January 1989 issue of Radio Electronics magazine. The circuit sends...
This simple audio generator with the 741 was found in a 90sTexas Instruments. The circuit...
In fact, this 1994 circuit uses a scale of LEDs to indicate the pulse rate applied to its input....