Basic Audio Zippy Fuzz - Verified

[anders]

Here is a verified layout of Basic Audio Zippy Fuzz drawn from schematic of PedalPCB Zipper

MPS6513's seems to be hard to come by but any low gain NPN Si works fine. I settled on a couple MPSA06's.

[Mulekicker]

Aw man, I was just getting into a Ross phaser, that's on hold now cause I've been wanting a Zippy (apparently I can't have too much zippery fuzz, just finished a Pixel). Thanks so much for this, cutting the vero now!

[Hozy31]

Nice little Fuzz! Used 2N9304s for the moment but will experiment with others later. Cheers for the layout anders.

[Fuzz Prince Of Bel Air]

anders wrote

Here is a verified layout of Basic Audio Zippy Fuzz drawn from schematic of PedalPCB Zipper

MPS6513's seems to be hard to come by but any low gain NPN Si works fine. I settled on a couple MPSA06's.

Excellent!

You don't happen to have a recording you could share... do you?

And looking at that schematic, am I right in thinking that 1k on the switch changes the resistance of the collector from 47k to 2ohms (1/Rt = 1/R1 + 1/R2; or 1 divided by 47,000 + 1,000 = 2.08)?

Edit: In case anyone cares, it's actually 979.16ohms. My first mistake was to not correctly use the formula I posted (it should be 1 divided by 47,0000 + 1 divided by 1,000, then divide that total by 1). My second was to use the wrong formula: since they are only two resistors in parallel the formula is R1 x R2, then R1 + R2, and divided the totals.

[BuGG]

Here's one with 2N3904s...   This is double tracked so maybe not the most accurate representation.
https://soundcloud.com/wobbybird/noise

[Mulekicker]

I built this with a couple 2n2369's and it's great. Does exactly what it should, thanks!