One big parasite found hanging off the tail end of an Ironbell Big Muff.
Resistor Capacitance » Resistor Guide

Resistor Capacitance » Resistor Guide
Please calculate the value the resistor would have to be to provide a parasitic capacitance of 560pF at say, 400Hz.The link was very interesting...except for the math.
Show your work.
Fyi, in that diagram over at bigmuffpage, I think R28 should be a capacitor, the ground end not grounded but connected to pin 2 of the volume pot, acting as a bleed cap (treble boost) at lower volumes.It took me a bit of time to finally see it.
The link was very interesting...except for the math.
I think you are right.Fyi, in that diagram over at bigmuffpage, I think R28 should be a capacitor, the ground end not grounded but connected to pin 2 of the volume pot, acting as a bleed cap (treble boost) at lower volumes.
Anyone trying to decipher that schematic is gonna have a rather long day.