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The Fuzz Face and similar pedals were designed for a speaker
cabinet, this is why a Fuzz Face often sounds like a fizz face
without a cabinet. I have a built a lot of distortion pedals
including many variations of the Fuzz Face, it is a great economical
design. <br>
<br>
One way you might use it is like Jan Hammer did, plug your synth
into a Marshall 100 watt stack with two 4 x12 cabinets,mike it up,
crank up the amp and stand well clear.<br>
<br>
In summary the Fuzz Face needs to be able to move some air.<br>
<br>
Graheme<br>
<br>
<div class="moz-cite-prefix">On 02/05/18 09:27, stepan kayukov
wrote:<br>
</div>
<blockquote
cite="mid:CAH86e_67VrAn4c-bntEKzY79_Y3qYcyufjQ5bOVJUqEH=N2C7g@mail.gmail.com"
type="cite">
<div dir="ltr">Hello everyone,
<div><br>
</div>
<div>Thank you for the lively thread. </div>
<div><br>
</div>
<div>I have tried placing the FET in series with the capacitor.
R7 connects to the source - and C1 is connected to the drain
(and then ground.) </div>
<div><br>
This tames the circuit a great deal, but the bleed is still
very much there. </div>
<div><br>
</div>
<div>As for placing a capacitor between the collector of R2 and
the first op amp... I realize I drew it wrong in Eagle. This
is the "basic" fuzz circuit that I built, before sending to op
amps: </div>
<div><a moz-do-not-send="true"
href="http://fuzzcentral.ssguitar.com/fuzzface/fuzzfacepnpschematic.gif">http://fuzzcentral.ssguitar.com/fuzzface/fuzzfacepnpschematic.gif</a><br>
</div>
<div><br>
</div>
<div>So, the output from the transistor does pass through a
0.01uF capacitor before going to the op amp. </div>
<div><br>
</div>
<div>Still, the problem continues. It sounds like many people
have had similar experiences bringing distortion into a
modular setup. Can it be done? I am hesitant to build a
separate power supply just to power distortion modules. </div>
<div><br>
</div>
<div><br>
<br>
<br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, May 1, 2018 at 6:03 PM, Tom
Wiltshire <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:tom@electricdruid.net" target="_blank">tom@electricdruid.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div
style="word-wrap:break-word;line-break:after-white-space">I
was interested to read your experiences with that module,
Quincas, since I had a hand in the design. I did some of
the voltage-controlled elements, including the tone
control. Later on it got an extra gain stage stuck on the
front (to use up a spare op-amp, IIRC!) and that probably
does make it noisy. To be fair, the original pedals aren’t
exactly quiet either.
<div><br>
</div>
<div>Tom<br>
<div>
<div><br>
<div>
<div style="word-wrap:break-word">
<div
style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">==================<br>
Electric Druid<br>
Synth & Stompbox DIY<br>
==================</div>
</div>
</div>
<div>
<div class="h5">
<div><br>
<blockquote type="cite">
<div>On 1 May 2018, at 17:52, Quincas
Moreira <<a moz-do-not-send="true"
href="mailto:quincas@gmail.com"
target="_blank">quincas@gmail.com</a>>
wrote:</div>
<br
class="m_566632191518243245Apple-interchange-newline">
<div>
<div dir="ltr">The Frequency Central Meth
Amp module I build recently is basically
a Big Muff adapted to modular, and it is
prone to the same bleed through
problem. I found that it is worse on
some PSUs than others. In My Arturia
Rackbrute it is silent, in my LM317/337
based linear supply it picks up all of
my VCOs a lot. My solution was to give
it's very own small PSU, a little
meanwell DC DC converter. However, I
suspect that sub regulating the 12v to
9v solves two problems: It adapts the
design without any component value
changes, AND isolates the circuit
somewhat from the main PSU. I have yet
to try this myself but I think it's
worth a try. </div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, May 1,
2018 at 8:59 AM, Walker Shurlds <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:walkershurlds@gmail.com"
target="_blank">walkershurlds@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex">
<div>
<div name="messageBodySection"
style="font-size:14px;font-family:-apple-system,BlinkMacSystemFont,sans-serif"><span>
<div>
<blockquote type="cite"
style="margin:5px
5px;padding-left:10px;border-left:thin
solid #1abc9c">
<div class="gmail_extra">
<div class="gmail_quote">On
May 1, 2018 1:28 AM,
stepan kayukov <<a
moz-do-not-send="true" href="mailto:stepan.kayukov@gmail.com"
target="_blank">stepan.kayukov@gmail.com</a>>
wrote:<br
type="attribution">
<blockquote
class="m_566632191518243245m_-1624857024801064299quote"
style="margin:5px;padding-left:10px;border-left-width:thin;border-left-style:solid;border-left-color:rgb(230,126,34)">
<div dir="ltr">Hi
Walker,
<div><br>
<div>Thank you
for the
advice. It
definitely
sounds
different than
it would on a
guitar, but I
still like it.
The real
problem arises
from hearing
things at the
output of the
distortion,
even when
nothing is at
the input. </div>
</div>
<div><br>
</div>
<div><span
style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;background-color:rgb(255,255,255)">The
R7/C1
distortion and
the way the
JFET is
coupled
created a kind
of gating
effect that I
was fond of,
but if you
think it might
be the reason
for the
overall
bleeding, I
should try it
the more
conventional
way. </span><br>
</div>
<div><span
style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;background-color:rgb(255,255,255)"><br>
</span></div>
<div>Both of your
suggestions are
very helpful. I
will try them
immediately.
Since I am new
to this list, I
do not know if I
should post
afterwards.
Should I give an
update? </div>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
<br>
</span>
<div>Yes, please update us! I
think even if you leave C1 and
Q3 as they are, but add some
small resistance in that
branch between C1 and R7 it
could reduce the gain just
enough to reduce the noise.
Another thing you could try is
increasing R8. There should be
a value high enough that Q1
gets biased all the way
off—this changes the sound
pretty drastically (sounds
kind of 8-bit) but makes it
completely silent when there’s
no input.</div>
<span>
<div><br>
</div>
<div>On May 1, 2018, 8:35 AM
-0500, Joe Frey <<a
moz-do-not-send="true"
href="mailto:frey@radioles.com"
target="_blank">frey@radioles.com</a>>,
wrote:<br>
<blockquote type="cite"
style="margin:5px
5px;padding-left:10px;border-left:thin
solid #1abc9c">
<div dir="auto">The best
distortion pedal(and I
have built several) I
ever built is the
harmonic percolator. You
can get the PCB layout
and build info if you
search pepper spray
distortion. Be advised
that one of the
transistors connections
are listed backwards. I
used components for the
original version, not
the Steve Albini
version. JoeF.</div>
</blockquote>
</div>
</span></div>
<div
name="messageSignatureSection"
style="font-size:14px;font-family:-apple-system,BlinkMacSystemFont,sans-serif"><br>
<div>I made one of the Tim
Escobedo all-silicon version
(but added the diodes back in
switchable) and it sounds
pretty great with synth. This
would be a pretty good
candidate for a module since
the "harmonics" knob is just
an attenuator.</div>
<div><br>
</div>
</div>
<div name="messageReplySection"
style="font-size:14px;font-family:-apple-system,BlinkMacSystemFont,sans-serif"><br>
<br>
</div>
</div>
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<br clear="all">
<div><br>
</div>
-- <br>
<div
class="m_566632191518243245gmail_signature"
data-smartmail="gmail_signature">Quincas
Moreira<br>
Test Pilot at VBrazil Modular</div>
</div>
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