1 single coil + 2-way switch + high pass/low-cut filter?

youdevil

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hi all,

i want to wire up a 2-way switch on a single-pickup single-coil guitar so that position #1 is normal, and position #2 engages some sort of high pass filter that'll strip away the bass and leave me with a super bright sound.

kind of like a rhythm-lead switch but with just one pickup!

i got the idea after inserting a fender TBX tone control into another guitar -- when you turn that thang up from the detente and engage that 1 meg pot (and resistor) the effect is dramatic.

and while it works fine, i'd also like to have the build option of a switch that immediately pops into the fully engaged, high-pass state. in other words, the audible effect would be just like turning the TBX knob "up full", but i'd get it by simply flipping a switch that sends the current thru whatever appropriate parts generate the effect.

not to get into the weeds, but from what i've read the TBX, as a double-pot device, combines the normal tone pot/cap for the usual result, with another pot and a resistor. what's not at all clear to me is which of all those parts, wired as they are, are required in order to achieve just one thing: maximum level of bled-off lows!

hope that makes sense. many thanks for your advice.

chris
 

FF_Pedals

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Do you have a volume pot on the guitar? You probably want to switch in a capacitor in series between the pickup and volume pot. You can read up on the wikipedia page for high pass filters to get a better idea of how it works.

You might want to get several capacitor values and some alligator clips so you can test to see what sounds best to you.
 

youdevil

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thanks for the reply. yes, this would be downstream from a single volume knob.

i did check out the wikipedia entry but sadly i am not very sophisticated when it comes to the principles behind these electronics. it's all i can do to follow the wiring diagram that comes with the pickups!

i'm really going to need a spell-it-out-in-crayon, "solder one end of an XYZ resistor to the middle lug of a thus-and-such switch, and the other end..." set of directions.

humbly,

chris
 

FF_Pedals

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thanks for the reply. yes, this would be downstream from a single volume knob.

i did check out the wikipedia entry but sadly i am not very sophisticated when it comes to the principles behind these electronics. it's all i can do to follow the wiring diagram that comes with the pickups!

i'm really going to need a spell-it-out-in-crayon, "solder one end of an XYZ resistor to the middle lug of a thus-and-such switch, and the other end..." set of directions.

humbly,

chris

It doesn't have to be downstream from the volume, you can put a capacitor between the pickup and the volume:

pickup hot - - - - -||capacitor||- - - - - Volume lug 3
 

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