freestompboxes.org

Hi everyone...

Brian Wampler offered the idea of turning the last two sliders of ab Boss GE-7 into a presence control (Twin Mod).
I wondered how this applies to an Ibanez GEQ10 (schematic attached)...
Any body got an idea and some enlightening explanation on how the gyrator-circuit is changed?

Cheers, Florian

easiest way is to run the schem through spice

Brian, nice to hear from "the man"...

I´m not that savy with spice... Maybe I´ll try with an online gyrator-simulator? Any thoughts or comments?

New development: I plan to mod the GE10 into an "Active-Amp-EQ-Pedal"

The upper five faders will be a sort of MESA-style EQ. I calculated the frequencies with Dirk Hendriks excel-calculator (see pdf).
The lower two should become a "depth" and "presence" control. Any ideas how I can do that mod? I guess a shelving-EQ would be the appropriate measure...