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A few days ago I got my 255K resistors to update my M420 VCFs to remove the dead zone on the freq pot at low freq settings. I was just about to jump in make the mod and then it occurred to me that the pot actually ∗needs∗ a dead zone so that DC levels at the FM inputs would not severly limit the lowest freq setting of the pot.
My question is: Wasn't this dead zone intentionally designed in? Seems like a classic design tradeoff issue that has now been forgotten.
Can anyone tell my why making the mod is not a no-brainer?
John Speth mailto:johns@...