Diplexing AM transmitters Sep 1, 2002 12:00 PM, By John Battison, P.E., technical editor, RF Throughout the years that radio broadcasting has existed there has not been a strong need to operate more ...

A crystal radio is a common enough science fair project, but the problem is, there isn’t much on anymore. The answer is, of course, obvious: build your own AM transmitter, too. AM modulation … ...