new wiring layout: need some feedback!

[studiostud]

Hey guys,

here is a quick little sketch up for a new idea (at least new to me) and I wanted to get some feedback from you.  What I'm looking to do is have a pedal with both a fuzz and an overdrive circuit with a mono input and a mono/stereo output.  There would be a switch allowing users to toggle between stereo or mono modes.  In stereo mode, each of the two circuits would go to a different output where the player could either have them going to different amps or different cab simulators into separate inputs in a recording rig.  In mono mode, the signals from each circuit would blend in parallel and go to output #1. 

Here is the diagram:

The "splitter" section is adapted from RG's A/B/Y splitter schematic and only uses the "Y" portion of it to send the signal to different circuits instead of output jacks.  I also put a mosfet booster in there so I could put a clean signal on both outputs when in bypass mode.  I wasn't sure if that was necessary or if I need to put a booster on each line after they split before going to the output jacks.

What do you think?  Is this something that could work and/or what am I missing?  Thanks!


Jeff

[.Mike]

You linked your PDF as an image...

http://www.grassrootsaudio.com/pics/stereopedalwiring.pdf

[studiostud]

Sorry about that.  The image showed up when I previewed it so I thought it would be fine.  I can repost a jpg or something if needed.  Thanks for the head's up.

[jkokura]

The booster will only be in the chain when the effects are in mono mode. Also, I'm not sure that it will 'blend' like you want it to in Mono mode. Interesting.

Jacob

[studiostud]

The booster will only be in the chain when the effects are in mono mode. Also, I'm not sure that it will 'blend' like you want it to in Mono mode. Interesting.

Jacob

Yeah.  The booster is meant for the mono mode specifically.  In the splitter there is a booster for each of outgoing channels so it wouldn't need an additional one.  Although that does bring me to another thought.  Since the stereo/mono switch is after the split, that means that the combined signal was already boosted from the splitter.  So would it work negatively to put another booster before going to the jacks?

And I'm sure you're totally right about it not 'blending' like I want.  That's why I wanted to get feedback from all of you.  I'm well aware that my knowledge of this "stuff" is grains of sand compared to vast beach that the rest of this community represents.      After you said that though, I checked out a couple sites and JD has a mini mixer project on GGG that I could adapt for this purpose.

http://www.generalguitargadgets.com/projects/15-boostersrouters/68-mini-mixer-project

I could basically do a mini mixer PCB for '2 in / 1 out' without the jacks and since the mini mixer has an opamp stage, I chose to take it directly to the output 1(R/mono) jack instead of going back to the bypass switch and sending it through another booster.  So the layout would look more like this:

[jkokura]

I'm having trouble understanding why you have the Mosfet booster there at all? If you're determined to use it, that's fine. But I think it would be more useful to build it as a seperate box. Even a stereo booster afterwards would be a cool idea. I think you have soooo much going on inside this thing, you should probably consider simplifying it to a certain degree.

On that note, I think you should replace the Booster with a buffered splitter, properly split the signals to the two jacks. I would also think it would make more sense to have it wired with two stomp switches - one for Effect On/Off, and One for Stereo/Mono.

It's almost like running your pickup in parallel or in series. It's kind of a cool thing to try different ways of doing things to hear the subtle differences it can make. In both cases, the pickup is humbucking, but the sound is slightly different in the two different setups.

Jacob

[deadastronaut]

hi jeff, i built 2 channels of that line mixer on vero the other day, and posted it on here..

http://www.diystompboxes.com/smfforum/index.php?topic=87740.0

i had to make 2 seperate amps  2 into 1 out, x 2 , as i didnt have a quad ...

but its verified i built it and its fine...just to let ya know if it helps at all..

rob.