Found in the June 1987 issue of Radio Electronics magazine, this circuit uses well-known CMOS components. The circuit has a CMOS amplifier stage that drives a small speaker.
This is the receiver for the transmitter suggested in CIR13081. The configuration is old, and...
This circuit generates 50, 100 and 200 Hz signals from a 3.2768 MHz crystal and has outputs...
This configuration found in a Motorola documentation consists of an experimental circuit that uses...