The first Telecaster® pickup (1948) had an unprecedented edgy sound and great sustain. Leo Fender called it the Broadcaster®, and Seymour Duncan makes one exactly like it. The STL-1b duplicates this fat, most sought-after vintage sound. The pole pieces are larger diameter, Dun-Aged™ magnets. Replace both your rhythm and lead pickups to get the classic Broadcaster sound that started a legend.