[Eliot Ness]

Here's a picture of the transmitter that Terry sells:

   

It has a digital frequency display and a speaker you can turn on to hear the source material that you're feeding into it.  That comes in handy just to verify your source actually has audio.  This version also plugs in directly to the outlet without the hassle (or noise) of a wall wart.

Terry Layman:

layvinrad <at> mymetronet <dot> net