In time for Field Day, Argonaut II (535), mic, manual, plus Ten Tec Model 290 Step Attenuator allows output power ranges from 5 Watts down to 20 milliWatts. Nice condition, used very little, original owner. Asking price reduced to $600 obo plus shipping. Russ, K6RHB, Santa Barbara, CA. russbehm at silcom.com