The TAILS add-on for PT2399 delays is a circuit that allows the repeats of the delay to be heard even after the effect is bypassed. It replaces a decoupling capacitor in the delay circuit and is easy to implement. The circuit has a small footprint, making it suitable for most builds.It is important to note that using the TAILS add-on means losing True Bypass functionality. However, you can add a second switch to bypass the effect if desired.The circuit can be mounted on either a footswitch or a SPDT toggle switch, but these components are not included in the kit. You can refer to the Switches section for more information on obtaining these components.

Summary created by AI from the original source.