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RAT LAB

Posted: Wed Jan 20, 2010 5:30 pm
by nbabmf
Inspired by the Beavis Fuzz Lab, FKR, etc... I'm converting a ProCo Roadkill (aka GC exclusive, rebranded Brat from the 90's) to the most versatile Rat in existence.

And it all starts here:
Image

Re: RAT LAB

Posted: Wed Jan 20, 2010 5:33 pm
by Nychthemeron
Oh man, that Beavis fuzzlab is insane. I can't imagine something that could surpass it. Good luck with making it. :thumb:

Re: RAT LAB

Posted: Wed Jan 20, 2010 6:09 pm
by nbabmf
The Fuzz Lab cost hundreds of dollars to build. I'm probably not going to go that far, but I will make it pretty ridiculous in terms of switches and knobs. I want as many useful sounds as possible.

Re: RAT LAB

Posted: Thu Jan 21, 2010 3:39 am
by elbandito
oooOOOOooo, this is gonna be good. :excellent:

Re: RAT LAB

Posted: Fri Jan 22, 2010 2:32 am
by nbabmf
Here's what I'm thinking so far... toggle switches for diodes in the feedback loop (Brat/Roadkill) and a variety of clipping options (germanium, silicon, and LED - all the main Rat variations), two versions of the Ruetz mod on pots for variable distortion character, and a voltage sag control with a voltage meter.

I'm open to more ideas!

Re: RAT LAB

Posted: Fri Jan 22, 2010 3:22 am
by hazelwould
nbabmf wrote:Here's what I'm thinking so far... toggle switches for diodes in the feedback loop (Brat/Roadkill) and a variety of clipping options (germanium, silicon, and LED - all the main Rat variations), two versions of the Ruetz mod on pots for variable distortion character, and a voltage sag control with a voltage meter.

I'm open to more ideas!

Feedbackloop

Re: RAT LAB

Posted: Fri Jan 22, 2010 6:53 am
by nbabmf
Haha, that's not even remotely useful to me.

http://www.youtube.com/watch?v=4f8e1uGFJLU

Re: RAT LAB

Posted: Tue Jan 26, 2010 11:29 am
by beavis
You really want to go insane?

Add two sets of variable capacitors for the LM308's compensation cap. Then a switch to go between them. 51pf makes for a darker sound than the stock 30/33pf part.

Then put in a ZIF socket so it is easy to swap opamps. Like this:

Image

And then, perhaps, a 12AU7 boost in front...

:hello:

Re: RAT LAB

Posted: Tue Jan 26, 2010 12:00 pm
by hazelwould
The king has spoken! :rock:

Re: RAT LAB

Posted: Tue Jan 26, 2010 1:24 pm
by futuresailors
beavis wrote:You really want to go insane?

Add two sets of variable capacitors for the LM308's compensation cap. Then a switch to go between them. 51pf makes for a darker sound than the stock 30/33pf part.

Then put in a ZIF socket so it is easy to swap opamps. Like this:

Image

And then, perhaps, a 12AU7 boost in front...

:hello:


Image

Sign me up for 2!

Re: RAT LAB

Posted: Tue Jan 26, 2010 5:24 pm
by nbabmf
beavis wrote::hello:

:hello: