F E A T U R E S : Most economic and efficient AM modulation ever designed. Modulates FULLY any beam tetrode amplifier and LINEAR amplifier up to 1 KW. Excellent waveform and modulation linearity. Controlled automatic speech clipping. Complete elimination of negative and positive peaks overmodulation. Compact, small in size, VERY LOW power consumption, IDEAL for mobile use. The ONLY modulation system that permits operation at full CW ratings. Built-in 1000 cps tone generator. Adjustable carrier level. Provisions for single, parallel, and push-pull final amplifier tubes.