I'm also broadcasting through my antique radios; right now my system consists of a Yamaha 5-disc CD changer, fed into an old Altec Lansing mixer. The 600 ohm output of the mixer is fed into an Altec graphic equalizer, which is fed into a CBS Audimax compressor/limiter. The Audimax feeds into a CBS Volumax peak limiter, which drives my little 100mw crystal controlled AM transmitter. I built the transmitter from plans which appeared in one of the Mid-Atlantic antique radio club newsletters about 15 years ago. This system works real well. and sounds just like one of the old-time AM stations. I program it with custom CDs which I burn on the computer; loaded up with 50s-70s oldies. I'm considering using an LPB carrier-current transmitter (pulled out of a drive-in theatre) to increase my range.