This circuit is part of an article published in the March 1990 issue of Radio Electronics magazine. The sensor consists of a grid-shaped electrode shown in the figure.
This interesting circuit shows on a display the sequence of numbers corresponding to a decimal from 1...
This circuit transmits to an FM receiver placed nearby telephone conversations. The coil consists of 4...
This control for bass, midrange, and treble was found in the March 1995 issue of Electronics Now...