Job Description:

• 1) Rebuilds cathode ray tubes used in television receivers and display instruments according to specifications, applying knowledge of electronics: Inspects tube for physical defects, such as cracks, scratches, burns, and pits to determine if tube is repairable.

• 2) Tests display function, such as horizontal fade, color purity, and convergence to locate cause of malfunction, using test equipment.

• 3) Cuts off glass neck holding electron gun, using hot wire or gas torch.

• 4) Paints dag inside bulb to provide conductive surface, using brush.

• 5) Places bulb and replacement electron gun in lathe equipped with gas torch to weld and anneal parts together.

• 6) Operates ovens and pumps to seal and evacuate tube.

• 7) Places rebuilt tube in chamber to age tube.

• 8) Coats exterior surface of tube with dag, using spray gun.

• 9) Tests tube function and operation for conformance to specifications.

• 10) Buffs and polishes display screen surface to remove scratches, using power buffer and abrasive compound.