Up for sale, a 1970s Guyatone PS-104 Crossover Box Auto Wah pedal in excellent condition, complete with the original box and owner’s manual. This no-frills Japanese pedal offers a dynamic, squishy wah effect, with a very unique compressed character and dynamic feel, highly responsive to user inputs. The simple controls include Delay and Drive knobs: Decay controls how long the filter sweep is engaged, while Drive controls the threshold sensitivity, offering a range of midrange-forward tonalities with a percussive punch.

There are just a few tiny marks on the enclosure, the graphics are pristine, and the original pair of knobs are intact.

The original box is included, along with the Japanese owner’s manual.