Pedalboard friendly build of the 1966 Professional MKII Tone Bender fuzz. Standard Features and Components: NOS Germanium Transistor Set (choose below). If you would like a higher or lower gain transistor set, please let us know when placing your order. *Pedalboard friendly On/Off battery kill switch. 125B enclosure. 122 x 66.98 x 39.64mm (4.8 x 2.64 x 1.58") Philips/Mullard "tropical fish" capacitors. High quality audio grade electrolytic capacitors. AMPHENOL top mounted jacks. True bypass switching. Optional Features and Mods: Standard Germanium NOS: Our standard germanium transistor sets are selected from a variety of manufacturers for best performance in the circuit. Acid Fuzz OC75 or OC81D: New production clones of the original Philips/Mullard devices. They were developed & made for Acid Fuzz, & are the culmination of 5 years of research and development on cloning the original Mullard OC75 & OC81D. (+$15.00) Premium NOS (New Old Stock) black glass Mullard OC75, or other in stock premium MKII transistor sets below. ( +$40.00) LED (+$10.00) External bias adjustment. (+$20.00) Tone "FAT" switch. This adds some more low/mids and shaves a hair off the extreme highs. (+$20.00) 9V DC jack. (+$15.00) *PLEASE NOTE: If you choose this option your pedal will NOT come with the standard on/off switch, but will arrive with the external power jack instead. Typically Ships Within 1-2 Weeks