The Model DB877 Dekabox Decade Resistor provides dependable longterm service in precision DC through audio frequency applications. Eight decades of non-inductive, precision, wire-wound fixed resistors are mounted in a low noise shielded metal case that also provides good mechanical protection. The DB877 is easy to use. It has the input terminals and a case-connected ground terminal conveniently located on the front panel. The dials rotate independently through 360 degrees, and a special detent design facilitates dial location. This allows for a coarse approximation and then precise finer steps to provide an exact resistance value. Accuracy over a wide range of ambient conditions is assured by the use of resistors with good temperature and power coefficients. Repeatability is assured by the use of switches that have multiple contacts of solid silveralloy and silicone treated ceramic wafers. Resistance per step and current ratings on each decade are presented below the dials for operator convenience and circuit safety.

esi DB 877 Datasheet