Harman Kardon AM/FM stereo receiver model 330B. from 1973 to 1974. Rated at 17 watts per channel. Features, tuning meter, one tape monitor, one phono input, one aux input, contour (loudness) on/off, stereo/mono selector, speakers 1 and 2 selectors on/off, AM, FM, FM stereo, phono, and tape amp/aux selectors. Also separate bass and treble controls.