madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: brand0nized on October 08, 2012, 05:11:12 PM

Title: How do I make an fx loop that bypasses when nothing is plugged in?
Post by: brand0nized on October 08, 2012, 05:11:12 PM
I want to make an FX loop for my volume pedal after my Gains because there's no more room on my board for the volume pedal. So basically, I want to route the signal to the right edge of my PT Nano and have two jacks to insert the volume pedal.

Can someone show me a diagram of how to wire one up so that when I don't have the volume pedal plugged in, my signal will still run through past the fx loop?
Title: Re: How do I make an fx loop that bypasses when nothing is plugged in?
Post by: jkokura on October 08, 2012, 05:16:42 PM
You do this using switching jacks. Connect the switches on the two jacks, and you're set. I realize this isn't a drawing, but hopefully you'll understand the idea with the description.

Jacob
Title: Re: How do I make an fx loop that bypasses when nothing is plugged in?
Post by: stecykmi on October 08, 2012, 06:18:02 PM
(http://imageshack.us/scaled/landing/7/fxloopjack.jpg)

that's it, roughly. you'll need a switched jack like the  neutrik NYS2122 (http://www.smallbearelec.com/servlet/Detail?no=770). once you've actually seen one of these things, it's actually pretty obvious how they work. basically, once you insert a jack, it disconnects one of the contacts.
Title: Re: How do I make an fx loop that bypasses when nothing is plugged in?
Post by: electricstorm on October 09, 2012, 02:03:12 AM
These are the jacks Jacob and Misha are talking about:

(http://imageshack.us/a/img39/6950/switchingjack.th.jpg) (http://imageshack.us/photo/my-images/39/switchingjack.jpg/)

Mono mono 1/4 inch jack

(http://imageshack.us/a/img534/7230/stereoswitchingjack.th.jpg) (http://imageshack.us/photo/my-images/534/stereoswitchingjack.jpg/)

And a stereo version 1/4 inch jack

Notice the shorting pins on both jacks.

Hope this helps.

Jim