For measuring inductance coils of large time constant

     A fixed resistance of 1K ohm is connected in series with three decade capacitance of 0.0001, 0.001, & 0.1 mfd constitute one arm of the bridge. The second arm contains two resistance decade dial of 10 and 100 ohms. The third arm contains three decade resistance dials of 1K ohms, 10K ohms & 100 K ohms. The experimental resistance is placed in the remaining arm. Complete wih experimental inductance in box with terminals and operating manual.