Adding feedback control to the B.Blender? Anyone done this?

[gmr1]

Want to have a loop box with a clean blender, and a second switch for feedback. It's easy with just a loop box, but I'm having trouble getting it to work the blend circuit (not even with the blender to all clean or all effect). Anyone done this? If so, where should I be taking the in and out from? Barge concepts makes a product that does all this... I just don't know how!  Thoughts? Thanks!

[gmr1]

Thinking about this more, perhaps I'm approaching it wrong. I'd like:

The B.Blender to work as it does so well on one switch
Chaos (with a slight bit of control with the feedback pot) on the second switch - turn it on, whoa, turn it off, back to the lovely blender.

I dont need that chaos to be made up of the blended signal, just the effected signal would be fine.

I could take the FB loop from the send/returns, but I just don't know how the blender will react when doing this. I don't really want to have to bypass the blender to use the FB loop. I have it planed for a momentary switch, just for moments of weirdness.

Any thoughts?

[gmr1]

Continuing to think out loud -

Can I get away with the b.blend and feedbacker in series, with the feedbacker taking it's loop signal from the same loop as the blender? I imagine splitting the output of the effect in the loop is going cause some impedance issues, but wouldn't think that would keep the feedback loop from doing it's thing, would it? Is having these split, and the feedbacker off, going to cause the blender to work any different than it normally would. Is a buffer needed from the loop before splitting to make it play nice?

Most of this stuff is easy to try, but I'm away from my bench until tomorrow night, so all I can do is try to figure it out in my head. I guess worst case senario is each "effect" gets it's own loop. Might be a nice feature any way... If the shared loop will work, I could have a switch for shared loop, or the feedback circuit with it's own effect loop...

I'd love any insight that could be offered.

[_dB]

This is an old thread but did you ever figure out how to do this?

I'm trying to do the same thing (basically a Barge Concept VBF-2 -- dry/wet blend on the effect loop with switchable feedback + feedback amount knob).

I have the B.Blender circuit breadboarded and it works great.  However I'm not having much luck adding feedback into the mix.  I tried connecting the SEND and RETURN pins with a 500K log pot like in the feedback looper pedals, but it doesn't work.

d.