The new EICO Model 730 is a superb, truly versatile modulator at low cost. It can deliver 50 watts of undistorted audio signal for phone operation — more than sufficient tomodulate 100%the EICO Model 72090-wattCW Transmitter or any transmitter whose RF amplifier has a plate input power of up to 100 watts. The multi-match output transformer matches most loads between 500 to 10,000 ohms and the unique over-modulation indicator permits easy, reliable monitoring, thus precluding any need for a plate meter. The Model 730 provides low level speech clipping and filtering with peak speech frequency range circuitry. Low distortion is also achieved through the use of feedback and the employment of premium quality audio power pentodes. The vacuum tube rectifier is the extra-rugged, slow warm-up GZ34, which eliminates high starting voltages and lengthens electrolytic and tube life. Balance and bias adjustment controls are also provided and the finest quality, conservatively rated parts are used throughout. The Model 730 is also an excellent low impedance driver for a class B high— power modulator.