"Pigtronix FAT Drive takes a futuristic analog approach to create complex crunch tones using CMOS clipping and a variable low pass filter for tone shaping. Bringing the tone control all the way clockwise takes this filter completely out of the circuit for total transparency and robust low end. Rolling the tone control back smooths out the highs, leaving ample mid-range bloom and bottom end punch.
A Hi / Lo toggle switch brings additional versatility to the FAT
Drive’s wide-ranging palette of overdrive tones, altering the gain
structure for enhanced crunch and soaring leads. The FAT Drive features
true bypass switching and runs fine on standard 9-volt power but ships
with an 18-volt adapter for superior headroom, clarity and overall
output"
Schematic available here.
Schematic available here.
