Voltage drop across a switch.

[UTSC]

Hello, I'm interested in installing a switch that creates a voltage drop in my guitar causing a lower output. Would this be possible by installing a resister between two posts of a simple on off switch? I would like to control when I would like the voltage drop.

Thanks in advance.

 

[roboboss]

Putting a resister across two poles like you said won't work. If the resister is in parallel with the switch the current will still flow through the switch when the contacts are closed. If you put the resister between one of the switch poles and the output jack or whatever is next in the circuit that should work.

 

[line6man]

do it like this.

 

[line6man]

On second thought, maybe like this would work better:

 

[mayfly]

On second thought, maybe like this would work better:

Yep.  That's what you need.  Size the resistors so the network is similar in impedance to a typical volume pot, and assuming you're running this into an amp/pedal with an imput impedance of at least 1M, it will work fine.

 

[UTSC]

Thanks a lot guys, much appreciated.

 

[-CB-]

You dont really even need the resistor between the two switch poles, or the bypass.

Just switch your signal to ground, through the resistor, or don't.  Closed, open... that simple.

A SPST switch will do.

Try a resistor in the range of about... 5k to 50k, or better yet, get a 100k pot, and install it in place of that resistor.  Dial it in, read the ohms and use a resistor of about the same value.

Easy peasy.