Big muff, octave mod ?

[fuzzo]

Hi every one,

It existes a mod or circuit bending to have an octave down with a big muff ? I didn't find information about that, so maybe someone knows here.

thx

[tmichutka]

Not that I'm aware of, but there's plenty of room in the case to stick another circuit in there.  I've got a Green Ringer (more like an octave up/ring modulator) and an LPB clone stuck inside of my case.  I would just recommend getting a good octave down circuit and placing it before the Big Muff circuit, then either leave it wired in or put a toggle/stomp switch in so you can control it separately.  If you decide to make the octave down switchable you'll probably want to swap the Big Muff switch with a DPDT or 3PDT switch because I seem to remember that some use a different method of switching.  I'm no expert but I modded my Big Muff extensively so I have some experience with the subject.

[Processaurus]

Don't think it is possible someone could change a few resistors and magically get an octave down out of their big muff, as all the octave dividers I've seen use more parts than the entire big muff.  You could get a cheap octave down (like behringer or Danelectro chili-dog) and stuff it in there though, and have a pretty sick pedal.

[mdaudet]

Maybe adding at the output an audio transformer (1:3) and a pair of diodes you could recreate the octave circuit of a Tycobrahe Octavia.

Search for the schematics of the Tyco (GGG, Tonepad, Fuzzcentral) and you'll know what I'm talking about.

Matt

[ambulancevoice]

Maybe adding at the output an audio transformer (1:3) and a pair of diodes you could recreate the octave circuit of a Tycobrahe Octavia.

Search for the schematics of the Tyco (GGG, Tonepad, Fuzzcentral) and you'll know what I'm talking about.

Matt

the Tyco is an octave up, not down

id say, go with Ben's idea
grab a cheap octave down pedal, figure out in which position you prefer it in (after or before the muff) and install it into the pedal

[mdaudet]

Maybe adding at the output an audio transformer (1:3) and a pair of diodes you could recreate the octave circuit of a Tycobrahe Octavia.

Search for the schematics of the Tyco (GGG, Tonepad, Fuzzcentral) and you'll know what I'm talking about.

Matt

the Tyco is an octave up, not down

id say, go with Ben's idea
grab a cheap octave down pedal, figure out in which position you prefer it in (after or before the muff) and install it into the pedal

ups... I missed the "octave down" part 

Anyway, with the audio transformer you could get an octave UP with some few parts.

Cheers

[Gila_Crisis]

just look here for some hints:
http://www.student.ru.nl/r.kerkhof/Taas/Mods/Big%20Muff.htm

note this esp.:
"Noise gate mod: with this mod the Big Muff will be quiet when you don't play or can
sound really low-fi.
Add a 100k trimpot (wired as a variable resistor) parrallel to the resistor before Q3
from signal to ground (R13). Add a switch so you can also undo the mod. Turn on the
pedal and tweak the trimpot to taste. When combined with germanium diodes in the
Q3 feedback loop, an octave up can be achived quite easy."

[fuzzo]

Thanks for all answers,

I don't want put another circuit in my big muff, I searched just a circuit bending or something like that, to have a so-called octave effet (not a pure octave down, but something which give a strange sound)

Anyway, I think I'll find a boss OC2 to have a real octave down pedal. It'll be great with fuzz

[Gila_Crisis]

i have a micro pog, and it's wonderfull togheter with my big muffs! they are just like brothers when used togheter!!!!!

[fuzzo]

Sure,but isn't the same price

[Processaurus]

just look here for some hints:
http://www.student.ru.nl/r.kerkhof/Taas/Mods/Big%20Muff.htm

note this esp.:
"Noise gate mod: with this mod the Big Muff will be quiet when you don't play or can
sound really low-fi.
Add a 100k trimpot (wired as a variable resistor) parrallel to the resistor before Q3
from signal to ground (R13). Add a switch so you can also undo the mod. Turn on the
pedal and tweak the trimpot to taste.

The internet is hilarious.  I wrote that a couple years ago as a random half baked suggestion for a guy wanting to get a gross sound from his big muff, never even tried it, now it comes back around as a tried and true!  Wonder if anyone's actually tried it?