Need help on an octave-up pedal for bass

[karolisd]

Hi, my friend asked me to build an octave-up pedal for his band's bassist. However, he wants to be able to cut the sound of the original signal and only leave the octave up. Is there a DIY way to do this?  Thanks in advance!

[Giglawyer]

You could build a Pearl Octaver, which does one octave up, 1 octave down, and two octaves down, and (I think) allows you to use any one of these options along. 

http://www.madbeanpedals.com/projects/LowRider/docs/LowRider.pdf

[Giglawyer]

This may work as well - BYOC divided octave:  http://buildyourownclone.com/effects-pedals/octave/dividedoctave.html