designed it to wire an RCA Victor "phonograph" turntable to the radio to amplify the sound. Only one cable was used as it carried a monophonic signal, not stereo. See A/V ports and phone connector.

The RCA CR-88 was a radio receiver made to work in top-secret government eavesdropping stations. As you might expect, these radios are top-of-the-line, performance-wise, at least when they are ...