What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

Simulcast Stereo

Prior to advent of FM stereo multiplex, H.H. Scott AM/FM tuners (Type 330) were equipped for "simulcast" stereo reception (sometimes referred to as "binaural" broadcasts). Many stations (including WCRB, of Boston, Mass.) would broadcast the left channel program content on FM and the right channel program content simultaneously on their AM affiliate station.

From a September, 1954,WCRB Ad promotingAM/FM "Simulcast" Stereo

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