RAT pedal variations and mods?

[Mark Abbott]

I was wondering if anyone knew the various differences between the original RAT, the RAT 2 and some of the new RAT s out there?

It seems the most common mods for RAT's are different diode combinations, and the R/C network hanging off the chip. Are there other mods out there that you can recommend?

Thanks for your assistance.

Yours Sincerely

Mark Abbott

[mr_doyle]

You may be interested in the AMZ mods: http://www.muzique.com/ebook.htm

D.

[oldrocker]

I've been looking to do some RAT mods too.  It's one of the only distortion pedals I built that I don't think sounds the way it should.  I went over the circuit a few times and I can't find anything wrong with it.  I had a 741 in it and recently installed a 308 and didn't hear much difference.  Mine is rather bassy and the volume is low.  When I turn up the amp it's got a really unique sound which is kind of cool but I know it's not right.  I had some problems with my Big Muff a while back and when I modded it something broke lose and it kills now.(Yun mods-Creamy Dreamer).  I was hoping to get the same thing to happen with my RAT.  (Just wishful thinking though.)

[Mark Abbott]

Dear Mr Doyle

Before Mr Orman decided to make the e-book he built a pedal called the Fat Gnat, many of his Rat mods are derived from that. Don't ask me what they are though as I wrote them down and I can't remember where I put the book.

As far as know if your RAT sounds right why not do a few searches and try and find wav/mp-3's of the RAT in action. I suppose the first place to look is ProCo's site.

What are the Creamy Dreamer Muff mods?

I did try the Swollen Pickle mods, but it did'nt knock me over and more than a regular Muff does.

Yours Sincerely

Mark Abbott

[Seljer]

For the Big Muff mods:
http://www.diystompboxes.com/smfforum/index.php?topic=45646.0

[Mark Abbott]

Thank you everyone for your help, much appreciated.

Yours Sincerely

Mark Abbott

[oldrocker]

Yeah!  Try the Yun Creamy Dreamer mods.  At least what I did.  Remove or jumper around the emitter resistors on Q1, Q2, and Q3.  Maybe try that first.  I also removed the 500p caps around the diode sections too.  I'm sure if I needed to but I haven't put them back in and tested it yet.  But man my Big Muff is my most powerful distortion-fuzz box now.  LOUD-LOUD-LOUD.  I don't know how it compares to stock or other Big Muff styles (triangle,green) but I like it.