Lincoln Service Parts 1 › Lincoln Electric 9SG4079 HI-FREQ TRANSFORMER ASBLY G4079 Lincoln Electric 9SG4079 HI-FREQ TRANSFORMER ASBLY G4079 Sale Price: $323.76 Original Price: $372.32 HI-FREQ TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! HI-FREQ TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1