WahWah and FuzzFace (the old Story) - please Help !

[Oliver]

Hello,

i own a JEN WahVolume, that is modded yesterday with TrueBypass and the Vocal Mod. (sounds great)

Now i connected my FuzzFace after the Wah and there is no WahEffect (that well known Problem)
I read about the OutputBuffer (fuzzcentral) and connected my TSClone
after the Wah and before the Fuzz.
Turned the Settings so that the Signal is nealy similar to the Bypass Signal . The Effect is, that the Buffers work so well, that the Sound of the Wah and Fuzz is like, You dont want to stop to play.
I build a Basic Buffer with a BC549C (dont have a BS one    )
But it sounded awful - farting, fizzly and the Wah Effect comes trough only a little bit.

Is it possible, that the OutputBuffer on Fuzzcentral will work better?

Or can i adjust the TransistorBuffer to work well with the Wah and the Fuzz?

any suggestions???

Thanx !

Oliver

[RDV]

You could try this one.http://runoffgroove.com/wahmods.html

Regards

RDV

[Jason D]

I used the output buffer from Fuzz Central, and it doesn't change the sound of the wah much at all. It does help the wah come through when using it with my FF clone.

Also I wonder if using the TS output buffer would work. But, even though it uses only 1 tran., 1 cap, and a couple of resistors, it needs a voltage divider circuit to get 4.5V. Anyway, that might be worth a try.

[smoguzbenjamin]

You're farty sound is a misbiased transistor! Measure the pins with a DMM and post 'em

[Oliver]

You're farty sound is a misbiased transistor! Measure the pins with a DMM and post 'em

Hi,

the Fuzz for itself sounds great (in my ears) - a very fat and creamy
Leadsound.
The Trannys are AC128, Q1 has 170 and Q2 is measured with 198 hfe.
With Stock parts build my RogerMeyerClassicFuzz Clone didnt sound,
very gated and farting.
I soldered a 10K Resistor parallel to the 18K at the Collector of Q2.
It gave much, much more OutputVolume and more Bassresponse.
So much, that i changed the InputCap from 4.7uF to 2.2uF and the
Cap over the FuzzPot from 47uF to 10uF (that matched my taste).

If i put a Buffered Pedal in Front of my Fuzz it dont sound good, only
the TS (but i build my one with TrueBypass, so i have to test with Effect on)
makes the Fuzz sound best - slightly more hights, but the Wah
comes trough... The TS is set to clean boost and Level - to get an equal
Signal in Bypass and Boost.

I think i did anything right in my fuzz, but if you have some suggestions to make changes to my fuzz - my ears and eyes are wide open  

thanx and bye

Oliver

[Oliver]

You're farty sound is a misbiased transistor! Measure the pins with a DMM and post 'em

Hi,

the Fuzz for itself sounds great (in my ears) - a very fat and creamy
Leadsound.
The Trannys are AC128, Q1 has 170 and Q2 is measured with 198 hfe.
With Stock parts build my RogerMeyerClassicFuzz Clone didnt sound,
very gated and farting.
I soldered a 10K Resistor parallel to the 18K at the Collector of Q2.
It gave much, much more OutputVolume and more Bassresponse.
So much, that i changed the InputCap from 4.7uF to 2.2uF and the
Cap over the FuzzPot from 47uF to 10uF (that matched my taste).

If i put a Buffered Pedal in Front of my Fuzz it dont sound good, only
the TS (but i build my one with TrueBypass, so i have to test with Effect on)
makes the Fuzz sound best - slightly more hights, but the Wah
comes trough... The TS is set to clean boost and Level - to get an equal
Signal in Bypass and Boost.

I think i did anything right in my fuzz, but if you have some suggestions to make changes to my fuzz - my ears and eyes are wide open  

thanx and bye

Oliver

[javacody]

Oliver, not to be overly obvious here or anything, but benjamin was talking about the pin voltages of the tranny in the buffer.  

[Oliver]

Oliver, not to be overly obvious here or anything, but benjamin was talking about the pin voltages of the tranny in the buffer.  

:?  OOOOOhhhh sorry!!!
i misunderstood that.... (thats embrassing  :oops:  )

I cant measure the Buffer - right after i modified my Wah and it didnt
match my expectations, i removed it. I can try to revitalize it, but i cut
it only out of the circuit.
(is build on a small piece of breadboard, as small i could build) about 1,5 x 1 cm

can i adjust the circuit at any place of the circuit?

thanx and sorry for the doublePost (made a double klick!)

bye
Oliver

[RDV]

You probably want to get 4.5v at the collector. Maybe a trimpot instead of the collector resistor would get it done.

Regards

RDV

[Oliver]

Hi,

the Basic Buffer Schematic has no Resistor at the Collector - is directly connected to 9V+.. what value of Resistor should match there?
I have some Trimpots (1K and some 10K) .

some more questions (im not very good in electronic - sorry)

what will happen, if i increase the Values of the two 220K Resistors?
Or the Value of the 3K3 at the Emitter?

bye
Oliver

[RDV]

Hi,

the Basic Buffer Schematic has no Resistor at the Collector - is directly connected to 9V+.. what value of Resistor should match there?
I have some Trimpots (1K and some 10K) .

some more questions (im not very good in electronic - sorry)

what will happen, if i increase the Values of the two 220K Resistors?
Or the Value of the 3K3 at the Emitter?

bye
Oliver

That particular buffer(that you've already made) will not work for a wah output buffer(I tried it myself), though it is a decent line driver(to drive long cables and such). The Mosfet design that Gez contributed to Runoff Groove would be better suited to the task.

Regards

RDV

[Doug H]

What I did to my wah to make it work with a fuzz face was add a jfet buffer followed by a series resistor. I don't remember but I think the resistor might have been around 47k. I used to have a schem of it and lost it in a computer crash.

What I found was that the wah worked better with the fuzz face when I turned down my guitar volume. This brightens up the sound and makes the wah sharper, rather than trying to "wah" that thick sludge that comes out of a fuzz face. The series resistor mimics this effect of turning down the guitar vol. You can get away with a fairly small value since the fuzz face has such a small Zin. Then when plugging into a distortion box with high Zin (like typical 1M), the resistor has a neglible effect. But I found the buffer alone didn't help much with the FF. It took a combination of the buffer and resistor to get the wah-FF combination working for me.

I don't think the device you use for the buffer is critical. It should work with JFET or NPN transistor (or MOSFET or etc). From your description, though, it sounds like you have a biasing problem with your buffer.

Check Jack's "Basic Buffers" article for a tutorial on how to set up buffers:

http://www.muzique.com/lab/buffers.htm


Doug

[smoguzbenjamin]

I like opamps for unity-gain buffers.

[Oliver]

Hi again,

i tried some fast and easy....

i soldered a 50K Pot at the entrance of the Circuit (like the Fulltone '69 Fuzz's BIAS Pot)
When the resistance is increased, the amount of Distortion looses some
points, but it works really beautiful with the WahWah..
My best taste is around 35K resistance.

so long

bye

P.S.: the buffer i build is dead - so measuring possible....