BestSnowman, the resistor worked "as Advertised". Used two jumper wires with clips on both ends. Clipped one wire to one rail with the resistor attached to the other end. Then clipped the other wire to the other rail and to the other end of the resistor. From there everything worked as it should. Will set up the resistor with permanent clips in future so it will be ready to attach when nest needed. Again thanks for your help. RCMCL