FPS-2 9 volt DC Power supply 2 (only for Center Positive effects!)

Fulltone FPS-2 9 volt DC Power supply 2 Only 69, SoulBender & OctaFuzz

The problem with 99.9% of all wall-wart adapters is that they are NOT regulated, some straying up to 13 volts or so, causing Hum and horrible tone. Enter the Fulltone FPS-2 (positive center pin) Regulated adapter....dead quiet, and exactly 9 volts no matter what your wall AC is putting out.