Uproar: making it smoother, and tone knob barely doing anything?

[ben_allison]

Great build! I compared it to my Riot and it's pretty much spot on!

A few things though; I find that the Uproar is a touch more crispy/farty. Any ideas as to what could smooth that out? FWIW I'm using mostly Panasonic caps and metal film resistors.

Also, the tone knob is not doing much... but I realized that might be because I'm using a 10k linear... but I believe it's actually supposed to be a 10 reverse log?

Also, what effect would increasing or decreasing C8, C9, and C10 have, once I get the sweep/impact of the tone knob right, I'm open to moddng the frequency range of the tone section.

[stecykmi]

you could try filtering off more high end, that may reduce some sizzle.

The second gain stage is a low pass filter with a cutoff of about 330hz (by f = 1 / (2 * pi * R5 * C6 )). If you increase C6, you'll decrease the high end going through. Maybe try something like 560pF or so.

Not sure how effective it will be since the next stage is a clipping which will add tons of high frequency harmonics, but it's an easy mod.

I've not built this myself but I see a lot of people talking about the filter pot isn't very effective.

[ben_allison]

Nice! I'll probably ad some sockets and swap things.

Filtering some high-end pre-gain is probably fine, since distortion is just harmonics, which will add some brightness inherently.

Thanks for the idea!