[sdiy] quadrafuzz ICs

[Tom Wiltshire]

On 10 Nov 2007, at 13:18, Derek Holzer wrote:

> Anyone know what ICs go in here for the op amps? Or would just  
> about anything work?
>
> http://www.paia.com/ProdArticles/quadrafz-design.htm

I don't know for sure, but I've built a lot of fuzzes, and I'd say  
that anything should work. The response is determined by the diodes  
much more than the amp, so it shouldn't change the sound much - but  
I'm not one of those who thinks that original JRC4558s are the best  
thing since sliced bread.

Try the usual candidates - I used to use TL064's for battery units  
and TL074's for the improved noise figure (Did I get that the right  
way around?)
If you want a real studio-grade unit, there are probably some more  
expensive esoteric audiophile choices.

T.