I remember it well from the fifty's"Get your red and blue Rock & Roll guitars for $18.95 Yes! to guitars for only $ 18.95" It was on the very top end of the Broadcast band on the little TRF True Tone radio in the metal case(the one that would knock you on the floor if you touched it and were barefoot, AC/DC, ask someone who knows) XERF http://www.ominous-valve.com/xerf.html N5ZV