Lincoln Service Parts 1 › Lincoln Electric 9SM12390-70 TRANSFORMER ASBLY M12390-70 Lincoln Electric 9SM12390-70 TRANSFORMER ASBLY M12390-70 Sale Price: $301.24 Original Price: $346.43 TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! TRANSFORMER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1