is there any way to stop buffered fuzzes from acting 'funny'?

[nordine]

people,

i recently tried the "B Blender" (an Opamp blender), to blend some bass with the original signal. now, when i put in the IN/SEND a fuzz (tried the bass fuzz and the harmonic percolator)... well, they don't sound as they should be.

here: http://www.home-wrecker.com/bazz.html ...there's the "deluxe bass fuzz", where using a transformer, you emulate passive pickup behavior and, then, get the appropiate sounds from some effects

is there a way to do this without said transformer?

[tommy.genes]

I was in the same boat. I built a Bazz Fuss without the transformer and it sounded great right after my bass, but not good at all in the loop of my paralooper (similar to B Blender).

I don't know of any other way around it, but when I added the transformer like on the Deluxe, it sounded good both inside and outside of the loop. The transformer is available for $2.75 from http://www.smallbearelec.com, and isn't that difficult to add to the circuit.

For more info on why the transformer does what it does (it's essentially acting as a "pickup simulator"), read Jack Orman's notebook article on the subject at http://www.muzique.com/lab/pickups.htm.

For more info on my build (which also included a modified BMP tone control), read the report in this thread HERE.

-- T. G. --

[nordine]

oh,

so there's no other cure than the transformer..

well, i'll try to get it somehow


thanks for answering!

[Processaurus]

oh,

so there's no other cure than the transformer..

well, i'll try to get it somehow


thanks for answering!

What about a resistor (or pot setup as a variable resistor) in series with the input?  Don't the Fuzz Face variants act as current amplifiers, rather than voltage amplifiers?  Maybe its getting too much current from the buffer before it, which is able to supply much more current than a guitar pickup.  I haven't tried this, I'm curious if anyone else reading this had.

[mr_doyle]

i'm after the pickup sim as well, had a great reading at AMZ website.

wondering what kind of cap (the 330pF one) could i use: i guess the best choice would be a metal film, but i can't find any of them in shops.
May i use a tantalum or ceramic instead?

TIA,
D.

[tommy.genes]

wondering what kind of cap (the 330pF one) could i use...

That cap is part of a low-pass filter. It is only shunting some of the higher frequencies to ground. As such, no signal that you would eventually hear is passing through it. Therefore it doesn't really matter what type you use. Besides, the signal is going into a fuzz circuit, so a little bit of capacitor distortion at that point really shouldn't matter.

I used a ceramic and it worked fine.

-- T. G. --

[mr_doyle]

thank you Tommy!

D.

[Gus]

Look at the 3 tran and the rocket.  The 10K after the input buffer is a crude sim of a guitar.  The guitar having inductive elements(the pickups) is part of the input gain stage gain setting math.