For example, if you turn down a high-impedance pot just a little, the volume will drop drastically. Other models may use different values, but my guess is that for volume pedals, roughly the same values that your guitar pots use will do. The taper is the pot s response curve. If you feel that the response of your expression pedal is too abrupt, and you cannot adjust it with the G-Force s calibrating curves, you could try changing the pot in the expression pedal into a similar but logarithmic one instead. According to one source such pots are made simply by dividing the pot into three sections, each with a different impedance.
Humans percieve sound levels in a kind of logaritmic way, hence their use in volume pedals.
These should be roughly similar to logarithmic ones. For a more detailed account check out some decent beginner s book on electronics. Voltage, current, resistance, power Both voltage, current and resistance are related to how electrons behave. If the resistance is high current may still flow provided that the voltage is very high too. Even an isolating material such as air will conduct electricity during a thunderstorm since lightning bolts have such immense voltages.