Harvey Mattel says there are two kinds of radio collectors: Those who collect for what's on the inside and those who collect for what's on the outside. He's the latter. But you would never know this ...

It was called the “Golden Age of Radio” in the 1940s and 1950s. Although thoughts recall the radio programing of the day when we hear the term, the equipment itself was also “golden,” so to speak.

Maybe it’s a hand-me-down from an elderly relative. Maybe you found it at a flea market, or it has been hidden in the attic for far too long. It could be an anonymous-looking black box with big dials ...

Old radios often had selenium rectifiers to convert AC to DC. The problem is that the old units, dating back to 1933, are prone to failure and to release dangerous chemicals like hydrogen selenide. [M ...