I have the QST ads for the S-76 and it was listed as the SX-76 one month but that was quickly changed back. Never did see the same picture in the 1951 Allied Catalog. Alex, W4TED entered the Hallicrafters Contest they ran back then and won a S-76 which he still has. He is active mostly on 40 CW. 73 Dave K4JRB