The EICO ST-40 is an all tube, point to point wired, integrated stereo amplifier. It develops 40 watts per channel. Features 2 switched sets of stereo inputs. Response: +- 1 db, 12-25,000 cps Distortion: IM, 1% at 40 watts Harmonic, 1/2% at 40 watts Uses 4 7591 output tubes. Cabinet Size: (HWD) 5" X 15 7/8" X 14" Weight: 34 lbs $79.95 (1962)