The first thing to note about a volume control is that it is not linear it is logrithmic potentiometer, meaning the resistance that you are changing when you adjust the control is not even throughout the pot. The first half of the pot represents about 30% of the total resistance of the pot and the second half contains the remainder of the resistance. With the volume all the way down there is maximum resistance and as you turn up the volume you decrease the resistance. A harp player uses his mic at max volume (10) and turns it back when a decrease in volume is needed, this means that he is operating in the course adjustment area of the pot and allows for no fine adjustment in volume only a course adjustment relegating the pot to a virtual on-off switch.

This is the technically correct way to wire a vol control, when we use this for our mic we are operating with 10 being max volume, This puts us in the course adjustment range and makes it more of a rotary on/off switch. Impedence to the element will equal the impedence of the control.

This method will have you operating the ctl backwards with 1 being max and 10 being min. This will have you operating in the fine adjustment area of the vol ctl and will give you more control. Impedence to the element will equal the impedence of the control.

This method will also have you operating the ctl backwards with 1 being max and 10 being min. This will have you operating in the fine adjustment area of the vol ctl and will give you more control. This makes the ctl a variable resistor and gives the most control (in fine adjustments) over the mic output. Impedence to the element will equal the impedence of the grid leak resistor plus the resistance of the control position.

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