Bass cut for guitar?

[IanW-UK]

Hi all, This is probably fairly simple but I have no idea. I want to wire a switch into my guitar that cuts some low frequencies. Is this an easy thing to do?

Any help would be much appreciated.

Cheers,

Ian.

 

[tony dB]

what is the pick up configuration Ian?

Cheers,

Tony.

 

[tony dB]

even better, some more details of that gtr plz.

 

[clintrubber]

Is not difficult. Don't know what kind of wiring your gtr has, but think of something like a capacitor of suited value between PU-selector & input of the volume-pot. Add a shorting switch across the cap. Or perhaps a pot across for gradual control, but if you want gradual control there will be better ways.

Is indeed a very convenient control, I have an old gtr with too many PU's & switches but also this bass-cut switch. Really of use.

Didn't the Fender Jaguar had a switch like this as well ? Have a look at that schematic, is around on the net.

Bye,

Peter

 

[IanW-UK]

Hi Tony, it's a 62 telecaster reissue but I've wired a dual 250k pot for volume with a switch to toggle between them. 2 single coils, 4 way pickup selector, single 250k tone pot. I've wired a second toggle switch in with 2 different caps (just experimenting with the tone pot) Not sure what else to tell you, I don't know much about the technical side of things. I just wired it all by trial and error.

clintrubber, thanks. I thought caps would cut off the highs not the lows?

Cheers,

Ian.

 

[clintrubber]

Caps filter highs when they're 'between' signal-route & ground, but when 'in-line' they cut bass.

Bye,

Peter

 

[clintrubber]

Likewise, you can make a bass-cut by replacing the tone-cap in your gtr by a coil. HF-cut becomes LF-cut. Not practical that coil, but it's been used.

 

[IanW-UK]

Thanks Peter. That helps a lot

Ian.

 

[tony dB]

couldn't have said it better :grin:

Pretty easy mod innit?

 

[clintrubber]

I'll have a look at which value that old gtr used, I traced the circuit.
I guess the corner-freq of the highpass it is creating will be somewhere around 150 or more Hz.

You could also use a switch with more positions, like:
/bypass/ - /bass cut/ - /more bass cut/

Bye,

Peter

 

[Bryson]

Some G&L guitars have a bass cut using a 1m (rev log?) pot with an .002 cap.

Here's a jpg:
http://www.guitarsbyleo.com/PICS/HOWTO/F10WIR80.JPG

 

[clintrubber]

Cool pic, right, exactly like that ! :thumb: :thumb: :wink: :thumb:

 

[IanW-UK]

Thanks guys, most helpful.

 

[clintrubber]

I'll have a look at which value that old gtr used, I traced the circuit.
I guess the corner-freq of the highpass it is creating will be somewhere around 150 or more Hz.

FWIW, it turned out to use a 2nF cap & 500k vol-pot, so (excl. the influence of additional loading) it comes down to a corner-freq of some 160 Hz.
Adjust to taste. :thumb:

Peter

 

[Nasse]

Since the guitar is tele style there is yet another spiffy trick (maybe not so useful this time but anyway, I have done it twice and liked it, the other instrument was a bass guitar and the other was two pickup gtr)

I found the circuit in Graig Anderton´s famous book Electronic Projects for Musicians. There is that nice circuit for two pickup guitars. If you replace the stock tele three-way pickup switch with similar size modern strat five way one, and add one mini dpdt switch, you can have three positions like before (neck, bridge and both parallel) plus pickups in series and fifth position perhaps one pickup with bigger or smaller tone cap.

If that mini switch changes the polarity of the other pickup, you can get two thin sounding bass options when pickups are together out of phase, series or parallel. You only need to connect the pickups metal cover slightly other directly to ground so it does not get "hot" in out of phase position

 

[CJ]

Put a maple neck on that Tele if your after twang.