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Banana Jacks & Plugs – Connectors with 4 spring contacts are wrapped vertically around a mid pin similar to a banana peel.

Amplifier – A component that increases the gain or level of an audio signal

AM – Amplitude modulated

ATSC – (Advanced Television Systems Committee) Government-directed committee that developed digital television transmission system.

CD-R – Refers to a recordable Compact Disc

CD-RW – Refers to a rewritable Compact Disc