Mixed Dielectric Capacitors are manufactured using one layer of tissue paper and one layer of plain Polypropylene film as dielectric between two electrodes of thick soft annealed, 99.35% purity of Aluminium foil and have extended foil construction. Power leads are soldered to the extended portion to make a strong and positive electrical contact which can withstand Heavy inrush and discharge current. Capacitors are impregnated with NPCB, bio-degradable Impregnant and are hermetically sealed. Three layers of impregnating oil adds to dielectric strength, increase protection against failure and provide cooling effect.