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Friday, November 9, 2018

Buttercup Fuzz

Stumbled across this one on FSB and thought it looked cool. It was designed by JD Barbato and is kind of a mashup between a Tone Bender MkII and a MkIII, with a BMP-style tonestack, with a switch changing the cap values in said tonestack. You can build it with all germanium transistors or use a combination of silicon and germanium:

I am currently using AC187 germaniums for Q1 and Q2 and a 2N5088 for Q3. Using the silicon 2N5088 removes some noise from the pedal, and adds a distinct, razory, compression to the sound which I prefer in my pedals. This combo also gives a nice ToneBender MKI type sound (ala Ziggy Stardust) when you invert the tone stack and roll back on the gain and butter a little.

The pedal also sounds good with the 2N5088's in Q2 and Q3, but is very hard edged. I have tried the 2N5088's in every position and in all combinations. The pedal doesn't work if all three are silicon. 

With a 2N5088 in just the Q1 position the pedal sounds pretty much the same as if all three were germanium. 



9 comments:

  1. You can tag this one as verified, subbed q1 and q2 for MP10B and q3 for 3904; butter pot is usable between 10 and 2, maybe a w pot? btw, sounds very good!

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  2. A little update, q1 & q3 are 3904's, q2 mp10b, changed 33nF caps for 39nF and 3.3nF for 3.9nF; butter pot for b50k and finally tested on my bass. THIS THING SOUNDS MASSIVE, i hated fuzzes for no particular reason but, ended up lovin them since the team awesome fuzz machine i made for a friend, this buttercup is definately a must.

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  3. Hi Guys,

    I build the pedal with the settings "The Aplikator" wrote.
    The butter pot only works in the middle range between approx. 2 and 8. and in this range the pedal becames a loud background noise.
    Under 2 or over 8 the butter is away and the pedal is quiet. The rest works fine.

    Is that the way this pedal should work?

    Thanks a lot!

    ReplyDelete
    Replies
    1. Did you subbed the butter pot for b50k? I get noise but i assume cuz I've not boxed it yet.

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  4. Exelent fuzz! Used mp 38,Gt404g, 2n2222a

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  5. the butter pot used b100k, any noise! Working good!

    ReplyDelete