Lincoln Electric 9SS26935-34 S26935-34 AC SUPERIMPOSITION & BOOST CIRCUIT BD. Sale Price: $2,914.77 Original Price: $3,351.98 AC SUPERIMPOSITION & BOOST CIRCUIT BD. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Quantity: Add To Cart Added! AC SUPERIMPOSITION & BOOST CIRCUIT BD. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1