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Phil Allison[_3_] Phil Allison[_3_] is offline
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Default Taper of Potentiometers



"** Horrible idea - it shorts the signal at low settings and sends the
output impedance high just when you want it low for noise/hum reasons. "

Isn't that how some guitar pickups are wired ? And don't ask me why.

** Only very rarely.

That method has just *one* advantage where there are multiple PUs, each with its own volume pot. It forms a resistive mixer that allows signal to pass from any pickup to the output regardless of the other pot settings.

The usual method requires no control be zeroed when PUs are switched in parallel or the instrument becomes silent.

The wiring schemes used in most electric guitars are primitive, full of dodges and compromises - good examples of how NOT to do it.

See wiring for early Gibson models.

..... Phil