Keeley Blues Disorder

[Joben Magooch]

Let’s go ahead and get out in front of this one:

Appears to be a “Blue” version in the same style as the Nobel Screamer. I’d assume Blues Driver+Bluesbreaker?

According to RK he’s planning four pedals total in this style.

 

[Fama]

Looks like it's a Blues Breaker / OCD, pretty much confirmed by the man himself in that thread.

A BD2 apparently wouldn't really work since it already has dual ganged pots (same thing with a Klon).

 

[jesuscrisp]

(same thing with a Klon).

WeLl AkShUaLlY it's not like the Klon because it raises gain in 2 gain stages simultaneously, while the Klon controls gain of the clipping stage and the clean blend.

 

[Fama]

WeLl AkShUaLlY it's not like the Klon because it raises gain in 2 gain stages simultaneously, while the Klon controls gain of the clipping stage and the clean blend.

The point was just that it already has a dual ganged pot, so you can't do a version with two circuits where you control them both with dual ganged pots. But you can point that out to Keeley in the original thread if you wish. I guess you could change the Klon part to just do one of those and so on, but I'm not designing any circuits so I don't care.

 

[jesuscrisp]

I personally don't quite see how the OCD and BB could be done in the same way as the TS and ODR. The latter have a good deal of overlapping topology, BB and OCD not at all. Unless it switches the whole clipping stage and then, tbh, the tonestacks of the OCD and BB both aren't that special or amazing. The OCD is mostly defined by the MOSFET clipping, the BB by being a low to medium gain soft clipper which can sound blues but also crunchy and marshally...

I'm curious nonetheless.

 

[Joben Magooch]

Yeah I guess “disorder” makes a lot more sense (name wise) for OCD rather than BD2. That was just kinda my gut thought as of course Keeley made a bit of a name early on with BD2 mods as I recall.

Guess at the end of the day it’ll just be up to @Robert to get to the bottom of things.

 

[Robert]

The point was just that it already has a dual ganged pot

The Noblescreamer uses a lot of switching ICs so the pot could surely be swapped from one circuit to the next.

The JHS Muffuletta uses digital pots to change fixed resistor values when changing modes.

The Jackson Audio Prism uses multiple digital pots controlled by a single potentiometer.

Technically there's no reason you even have to use a dual-gang pot at all, you could just control two digital pots from a single pot of virtually any value.

 

[Feral Feline]

Right, black magic. Got it.