The Ginger Muff - Axis Face Ge with Pics

[enigmur]

I have finally finished this project with help from the guys here on this forum.

I had troubles with the circuit due to using a strange vero layout - find my thread Axis Face Debug.

Anyway, I have made a couple of capacitor mods to ease out some highs, and used germanium transistors and the thing sounds awesome!

Here are some shots I just took (I'm just about to change the input cap)

Enjoy!







Cheers everyone for their help!

[enigmur]

After some jamming with this pedal I believe I want to get rid of the pot which controls bias, and put a tone pot in.

I've seen people mention some super easy tone control but forgot what its called 

Could someone point me to it?

By the way this is my most used pedal now!

[Barcode80]

you can find the big muff tone control add-on in dragonfly's layout gallery under mods, and do a search for SWTC (stupidly wonderful tone control) for another option. i know the big muff tone stack can just be tacked to the output, but i don't know much about the SWTC, just that everyone seems to like it.

[enigmur]

Sweet that was the one I was thinking of. But it seems to be 2 pot, I really need a single pot tone control like on Boss kinda pedals.

Is there a way to add one without rebuilding the origional board? Does anyone know a good single knob one?

[Barcode80]

IIRC, it is two knob working between two caps. you could mod it to a one knob, i think, by putting a treble cap from lug 2 to lug 3 and a bass cap from lug 1 to lug 2. this shunts more of the signal or less through each as you turn. someone else please explain better. 

[mac]

What matsushitas are those?

mac

[enigmur]

I cant remember which ones I used now, pretty sure it was an 2SB173 and a 2SB172, I got them in an old transistor radio for nearly nothing.

[Easywider]

Looks Very Nice ! !

[Der Groovemeister]

Here's a link to simple tone control (1 and 2 pots):
http://beavisaudio.com/Projects/BigMuffToneControl/

[enigmur]

Awesome just what I was after, cheers.

Where do you think I should add a tone control on a FF circuit?

At the input? Before the output and volume? Or in the middle somewhere?

[mac]

I have a lot of Matsushitas 2sb172, 175 and 176. all from different sources, all highly reliable, and consistent.

amc

[Barcode80]

Awesome just what I was after, cheers.

Where do you think I should add a tone control on a FF circuit?

At the input? Before the output and volume? Or in the middle somewhere?

try both. i prefer output. input is going to mess with your bias, but give it a shot!

[enigmur]

I put the single knob tone control in that link posted in my FF last night.

In the output, it cuts way too much volume off - any way around this?

I currently have the control on the input, but it has weird effect on the tone. It works like a Rat Filter knob, anti clockwise is treble, clockwise is bass.

Except there is a massive volume dip between the two extremes. It is loudest set at clockwise at the bass end, I'd rather a constant volume.

Should I try and put the control somewhere in between the two transistors on the circuit?

Should I just try the simple 'Smooth' knob as described on fuzzcentral's axis face?

I tihnk im going to breadboard a Fuzz Face and really perfect it's tone and controls.