MFJ 962D Versa Tuner III antenna tuners handle 1500 Watts PEP SSB amplifier input power (800 Watts PEP SSB amplifier output power). They're perfect for Ameritron's best selling 800 Watt or 600 Watt amplifiers! MFJ 962D Versa Tuner III tuners are new and improved with features including MFJ's AirCore Roller Inductor, a new aluminum-skirted knob set including a weighted deluxe spinner knob, ultra compact size, and a scratch-proof multi-colored Lexan front panel. Two transmitting tuning capacitors and MFJ's exclusive AirCore roller inductor gives you precise control to get your SWR down to an absolute minimum. You get an extremely wide matching range from 1.8 through 30 MHz continuously, including MARS and WARC bands. MFJ's AirCore roller inductor has an air core that can't burn up. You get ultra high-Q, low loss and MFJ's exclusive Self-Resonance Killer that eliminates damaging self-resonances. MFJ's lighted peak and average reading cross-needle SWR/Wattmeter makes tuning quick and easy (12 Vdc or 110 Vac power source required). At one glance you can read SWR, forward and reflected power in two power ranges. A 6-position ceramic antenna switch lets you select 2 coax lines (direct or through tuner), random wire and balanced lines. You get a heavy duty MFJ TrueCurrentBalun for balanced lines. High-voltage ceramic feedthrough insulators let you operate high power into balanced feedlines.