log to linear pot conversion (EBjr exp pedal)

[rhys]

I rewired my 250k EBjr passive volume pedal to use as an expression pedal (effect level for Boss DD20 delay).  The logged nature of the pot is pretty apparent--there's a lot of change in effect level in the last 25% or so of the sweep.  I'd like to even it out more, or possibly even stretch out the sweep as a reverse log.

I searched here and found several educational threads on adding resistors to the outer lugs to alter the taper, but those threads all seem to be aimed at turning linear pots into log pots.  I want to go the other way.  I imaging the theory is related, but would like to know if anyone has a suggested value range of resistor to put across the lugs of this 250k pot to make it more linear.  Or...is not possible to linearize a log?

[Hides-His-Eyes]

Think about it: if a parallel resistor makes a linear pot more logarithmic... A parallel resistor makes a log pot an even more log pot.

There are ways to linearise a single "RESISTOR" (Rheostat); you could then use that resistor to control an active circuit which could give linear response.