Locking tuners designed for easier string changes and tuning stability
Patent drawing I see a lot of confusion regarding locking tuners online. A lot of people seem to think locking tuners will provide additional tuning stability, or are redundant when a guitar as a locking nut (a la Floyd Rose). E.g., one person claimed: “Tuning stability is why they were invented.” So, um, yeah. Not exactly. Or at least not completely. The first locking tuners were invented by Robert Sperzel, who was granted patent 4,625,614 . The main benefit Sperzel lists in that patent is that his invention “provides a tuning device having a string post which is rotated through a short distance to quickly and easily tune a string of a musical instrument to a desired pitch [...] by rotating the string post through a short distance.” His invention was intended make string changes less of a pain in the ass, faster and easier compared to existing tuners, which he describes: “The string post of the tuning device [then in use] must be turned through several complete revolutions ...