Seymour Duncan SVR-1b Vintage Rails Strat Pickup - Black Bridge Twin-coil design and special wiring for true single-coil tone without any hum The sound is clean, clear, and bright SVR-1 Vintage Rails use a unique split rail, twin coil design and special wiring to achieve true single coil tone without any hum The sound is clean, clear and bright, with all that quack you love in the notch positions SVR-1 Vintage Rails use a unique split rail, twin coil design and special wiring to achieve true single coil tone without any hum