Make your own effect pedal Like a Pro! DIY Rangemaster *Germanium* Treble Booster kit with AC187 Germanium Transistor With Filter Mod for increased tonal range This Kit is super easy to build and very rewarding The PCB is designed to fit perfectly inside a 1590b enclosure Designed to be assembled with Onboard components so no wires are required (see illustrations) Please note- This Kit includes - 1-PCB 2-AC187 Germanium Transistor (NPN) 3-In/Out Jacks 4-3PDT Footswitch 5-DC Jack 6-Led