Found in American documentation from 1969, this circuit operates in the frequency range 10 to 150 Hz providing signals as shown in the diagram itself.
This car turn signal circuit was found in the April 1969 issue of Radio Electronics magazine. The...
In the figure we have a simple way to obtain (almost) sinusoidal signals from an integrated...
This experimental 555 circuit sends signals in the medium wave band to a receiver a few meters away....