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.
This is the circuit of a turntable from the 1970s. We found it in a repair article in the December...
This circuit divides the grid 60 Hz frequency to obtain 20 Hz to drive mechanical watches used at...
This small audio amplifier uses an uncommon integrated circuit today. The circuit is from a...