Trek II LP-50 (50hz) Leslie pulley set (122, 145, 147, 760, etc.)

Allows the rotors of Leslie speakers manufactured for 60 HZ operation to rotate at the proper speed when operating on 50 HZ. Replacement set for upper and lower rotors. Fits the following Leslie speakers: 21H, 22H, 31H, 44W, 45, 46W, 47, 122, 142, 145, 147, 147RV, 222, 760, 770, 900, 910, 925 For product usage chart click thumbnail to the left