Tone knob too subtle? Help??

http://tagboardeffects.blogspot.com/2011/11/dam-red-rooster-vero-layout.html

Hey all,

I built this pedal and it sounds fantastic but the "range" knob (tone) is not as dramatic as I thought it would be. I've never played an original Red Rooster so I'm not saying anything is "wrong" here but can anyone help me out?

1. If you own a Red Rooster, would you describe the range knob as subtle? Or does it really change the tone a lot?

2. Based on the layout I used, can you tell me what I would need to do to make the range knob have a wider range? I want the treble (max counterclockwise) to be more trebly, and the bass (max clockwise) to be more bassy.

http://tagboardeffects.blogspot.com/2011/11/dam-red-rooster-vero-layout.html

Thank you!

It looks like the 5nF and 10nF caps controls the tone. In case you didn't know, this is a passive tone control on the input. It either cuts the bass a LOT, or a little, and then the gain stage makes up for the signal loss. It just goes from trebly to more or less flat, there won't be any bass boost (relative to midrange) with that tone control.

It's easy to experiment with different value caps and see if you find a combo you like. If you want more treble, replace the 5 nF cap with a smaller value. More bass (less bass cut, actually) replace the 10 nF with a larger value.

Thank you!

Another quick question - would increasing the value of the "range" pot also get me where I want to go? Sorry if this is a dumb question. I'm good at building from layouts, but I have very little knowledge when it comes to designing or understanding how circuits work.

Oh and yeah that makes sense that it's a passive tone control, not active. And that's fine. I am mainly looking for more treble (less bass). I was hoping that I could just increase the value of the Range pot. In my head it seemed like that would do the trick but like I mentioned, I have no formal training or anything so my knowledge is pretty basic/limited. I've built dozens of pedals, I'm good with my hands and with a soldering iron. Just never took the time to learn the ins and outs of audio circuits.

You shouldnt have to mess with the pot, just the caps.

Right on. I'm going to change the 5nF cap to a 1nF and see how that goes... thanks.

UPDATE: I didn't mess with any caps but with some help from some folks on the web I was able to determine that the layout I used has a typo. The 10K linear pot for the "Range" knob should have been a 100K linear pot. So I made the correction and PRESTO! {censored} sounds fantastic! The Range knob is now way more usable and can achieve all the tones I've heard from the Red Rooster in those youtube videos, etc.

So yeah, just wanted to post the update in case it may help anyone in the future.