The figure shows how to associate flip-flops in a shift register to obtain a lower frequency sinusoidal signal. The circuit is from a Radio Electronics from November 1976.
This headphone amplifier using a pickup coil can be used as an extension for devices such as TVs,...
This circuit uses common components activating a control relay for the water pumps. The sensors are...
We found this circuit in a 1967 El3ectronics World. The transistors are from the era but can be...