It can receive the AM broadcast band (540 KHz to 1600 KHz), and 3x shortwave bands covering 1.6-4.4 MHz, 4.5-11.5 MHz, and 10-31 MHz. It has four vacuum tubes and a selenium rectifier that replaced a vacuum tube used in the S-38. The tubes are a 12BE6: Oscillator & Mixer, 12BA6: IF Amplifier and BFO, 12AV6: 1st Audio Amplifier, AVC, and Detector, and a 50C5: Power Output Amplifier. It has a 5″ internal speaker, and internal ferrite antenna for the AM broadcast band, a 45″ whip antenna for the shortwave bands, and provisions to connect an external antenna. It has a BFO for listening to CW signals.
