Silica Fuzz

jcpst

Well-known member
Build Rating
5.00 star(s)
I wasn’t planning to write a report for this, but I didn’t find another report for this circuit.

I’ll quote the product page for an overview:
The PedalPCB Silica Fuzz is a silicon-based fuzz circuit designed to deliver the warm, vintage-style tones typically associated with low-gain germanium transistors—without the hassle of sourcing rare components. Utilizing a unique piggybacked transistor configuration, the Silica Fuzz simulates the characteristics of low-gain devices using modern, readily available silicon transistors.

I appreciate designs the use common, inexpensive parts as an alternative to the “mojo”.

I think this is a good beginner circuit, even with the three trimpots. I biased it to 4.5v at first. Then I adjusted the other two trims to taste. Finally, I went back to the bias and tweaked to what I thought sounded best, which ended up being 4v.

Ok, how does it sound? Good! I like it. I think I’m going to try it in place of my Antithesis fuzz for a little while. I still haven’t tried building a Ge FF, so I don’t have a way to A/B what the description claims. IMG_3330.jpeg

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I wasn’t planning to write a report for this, but I didn’t find another report for this circuit.

I’ll quote the product page for an overview:


I appreciate designs the use common, inexpensive parts as an alternative to the “mojo”.

I think this is a good beginner circuit, even with the three trimpots. I biased it to 4.5v at first. Then I adjusted the other two trims are just to taste. Finally, I went back to the bias and tweaked to what I thought sounded best, which ended up being 4v.

Ok, how does it sound? Good! I like it. I think I’m going to try it in place of my Antithesis fuzz for a little while. I still haven’t tried building a Ge FF, so I don’t have a way to A/B what the description claims.View attachment 109886

View attachment 109887
let me know when your ready for a germanium fuzz face... I can sort a couple germs for you and send your way... I have a small stash of about 35-40 AC125's that do well in fuzz faces. I can measure a couple for you and drop in the mail.
 
let me know when your ready for a germanium fuzz face... I can sort a couple germs for you and send your way... I have a small stash of about 35-40 AC125's that do well in fuzz faces. I can measure a couple for you and drop in the mail.
That is a super-kind offer. But I already have tested germs for a fuzz face, as part of a prize from the Player Hater’s Ball. Just haven’t gotten to it yet.
 
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