Grayhill 7819 Rotary Switch is a 12-position, 4-deck selector switch from Grayhill. It provides four decks for multi-pole switching across 12 discrete positions, all operated by a single rotary control. The part number 7819 identifies this specific four-deck, 12-position model in Grayhill's rotary switch lineup, suitable for configuring multiple circuits or routing between alternative signal paths in compact multi-pole applications.
