Special Features:

Urack mounted; uses non-inductive or low inductive resistors throughout the unit; uses gold plated silver contact switches; resistance temperature coefficient is less than +/-10ppm/c for 100 ohm steps and over, and less than +/-20ppm/c for 10 ohm steps and under ; power per step 0.16watts for 0.01 ohm; 0.25 watts for 0.1 ohm steps; 0.6 watts for 1.0, 10.0, and 100.0 ohm steps; and 0.5 watts for 1000 ohm steps and over; max current 4.0 amps at 0.01 ohms and 2.3 ma at 100kohms and above

Properties:

An adjustable assembly of precision resistors in decimal steps, inclosed in a box and provided with means (e.G., rotary switch) of selecting any multiple of the least unit up through the aggregate of all units. Excludes resistance standard; resistor, adjustable; resistor, variable (as modified); and resistor assembly.