The SolidGoldFX If 6 Was 9 MKII is a take on the Fuzz Face using silicon BC183 transistors, which are considered to be less scooped and muddy than germanium transistors, but not quite as harsh and jagged as other silicon options. It also includes a bias control which can vary the voltage going to your pedal a la Eric Johnson, whose signature sound came from running his Fuzz Face off a partially-drained 9-volt battery.... Click on the title for more