Effects Loop Switch Boxes

Here are three different switching boxes to switch effects loops into your signal chain (usually between your guitar and amp). The first one is a single effects loop switch.  The other two switch boxes are for using two effects loops. All these circuits are passive except for the LED indicators to indicate if the loop is engaged or not.


Single Effects Loop Switch Box

This is a simple effects loop switch box. This is sometimes called a “true bypass box” since it can be used to switch in/out an unruly old non-true-bypass vintage stompbox to make it “true bypass”. There is example diagram of how you can use this box below, at the end of the page. This switch box can allow for a clean signal straight to your amp, completely bypassing your pedal board.  Another useful aspect is that it can be used to switch on several effects with just one click of a switch.


Dual Effects Loop Switch Box

Here is a dual effects loop switch box. Switch between two different effects loops. An excellent solution for switching between two completely different sounds with one switch click.  Note that the switching between loops is devised so that the input of the unused loop is shunted to ground.  This helps prevent noise when there is a high gain pedal in the loop.


Dual Effects Loop Switch Box with Bypass

Another dual effects loop switch box that allows you to switch between two different effects loops or bypass them both.


Buy a Effects Loop Switch Box (One Loop)

Buy a Single Loop Switch Box Complete Kit. Includes all the parts and materials you need to build one, all for about the price you would pay for the parts.

Buy a Dual Effects Loop Switch Box

Buy a Dual Loop Switch Box Complete Kit. Includes all the parts and materials you need to build one, all for about the price you would pay for the parts.
 

Effects Loop Switch Box Application Diagrams

Here is a diagram example showing the use of the Effects Loop Switch Box. The box is used to switch in or out a “loop” of guitar effect pedals. Very useful in may rigs.  Especially useful if you want to switch on several effects with one press of a foot switch.  


Here is a diagram example showing the use of the Dual Effects Loop Switch Box.