Just did some horse trading today, and picked up a Johnson matchbox, to match my Johnson Viking Valiant transmitter. finally a matched set. How cool is that ? This is a really rare peice to get, and I am really excited to finally have one. it does all the transmit/ receive switching, and well as mute the receiver and an antenna tuner to boot. Now I only have to flip one switch to go into transmit mode, instead of three. im moving up in the world.