The figure shows how to generate a sinusoidal signal using 4 flip-flops. The circuit is from a Radio Electronics magazine from November 1976. The clock frequency is divided by 8.
Found in American documentation from the 1990s, this circuit receives modulated infrared signals. The...
Of course, the range of this transmitter found in a 1992 documentation is not exactly 4 km, as it...
Texas Instruments' TMS1000 integrated circuit was very successful in the 1980s, consisting of a...