AC damping board assembly with AC Damping capacitor 25Mfd/ 500Volts, confirming to IS: 13648, to Make M/ s. ICAR- Italy model MSR 25D- 22- 50, 22 mfd, 550 volts or to M/ s Yash capacitor/ Nasik model YE- 001, 25 mfd, 660V or to M/ s Advance Mysore type ASPR- 15, 660V only., damping Board similar to M/ s Usha Drg. No. 3. 89. 92405 Rev. 0 or to M/ s Hirect Drg. No. 3TR- 2112.