The in-line DEKABOX decade resistors are adjustable resistors that can be easily set to a resistance value for precision dc and audio frequency use, There are three models of Dekabox, Model DB 42 has four resistance decades, Model DB 52 has five, and Model DB 62 has six. Each unit consists of a metal case, three binding posts, and four, five, or six decade resistance switch assemblies. Figure 1-1 shows panel arrangement and dimensions of all models.