RNFR - Green Bomb Fuzz

threestar333 · Post by **threestar333** » 16 Sep 2011, 05:07

Thanks for looking it over. I'll stick that coupling cap in there. Is there a problem with the by-pass switching? I thought I drew it up so that both buffers would be by-passed...

mollotof · Post by **mollotof** » 07 Mar 2012, 14:28

bigmufffuzzwizz wrote:Got the vero layout!

.I'm looking for it. Could you post it please ?
thanks...

Post by **azrael** » 26 Sep 2012, 21:36

Does anyone have any voltages for this circuit? I had some circuit boards made by Dorkbot, and my build just does not seem fuzzy and mean enough.

fuzzguy · Post by **fuzzguy** » 14 Oct 2012, 18:23

Hi

Is there a vero-layout of the green bomb on the net somewehere still? I understand Ibodog had one on aron nelson's page but his gallery is empty..

I would do the layout myself but I'm a beginner.. in love with fuzzrite sounds. I've build a fuzzrite (dragonfly's layout with the additional 22 k) and the sound with the "tone" in the middle is good, but the more bassy settings sound pretty bad and blended with the clean signal, seems like it's not supposed to be like that but still I'm pretty sure I did nothing wrong and experimented with a lot of transistors also..

Anyway, if the green bomb vero-layout is not on the net anymore, maybe someone wants to make one, for me and everybody else?

Nocentelli · Post by **Nocentelli** » 15 Oct 2012, 18:05

No idea where i picked this up - I think it might be ibodog's... It says verified, and appears to match the RnFR schematic:

: green bomb fuzz vero verified v1_0.gif (22.29 KiB) Viewed 1152 times

fuzzguy · Post by **fuzzguy** » 15 Oct 2012, 22:21

Great Nocentelli!
I'll try to look it over and compare with the schematic and build it sometime the coming weeks.

Post by **azrael** » 17 Oct 2012, 16:28

I figured mine out, fwiw.
looks like a bit of the solder had creeped up the leg to short on the metal casing. doh! seems fixed now, circuit sounds great.

fuzzguy · Post by **fuzzguy** » 18 Jan 2013, 21:21

So it's a few months later and I've built the vero layout nocentelli posted a few posts earlier. I t works but I'm not really sure it's working right.
Volume and shape are working as they should (I think). The fuzz pot to the right from 12:00 to 5:00 gives an increasingly heavy fuzzrite sound, so that's good and normal. BUT when I turn it to the left, from 12:00 to 7:00 the sound becomes increasingly clean! I know this works as a blend pot, so turning to the left you get increasingly more of one stage, but I think that stage should be distorted as well, right?
The more I turn it to the left, the more (extremely) muffled the sound becomes as well.

I've built dragonfly's fuzzrite layout before, and I have the same thing! Also a clean blended signal. That would lead me to believe it should be like that?? Or am I making some mistake twice.

i've been checking for mistakes but can't see anything wrong, I also measured the transistor voltages if that says anything in this case..

Nocentelli · Post by **Nocentelli** » 18 Jan 2013, 23:19

gonzo1999 wrote:I just finished putting this together and it sounds pretty amazing - it does all sorts of things! A ton of sounds.

But I just want to verify that I put it together correctly and I'm getting the response I should, because as I increase the fuzz and shape settings, things change in ways that I wasn't expecting/can't predict. For example, with the shape in the far left position and held constant, starting with the fuzz in far left, I first get some mellow, muffled tones with more bass response and muted highs, then raspy low crunch at 9 o'clock, a louder, biting crunch at noon that almost seems cleaned up a bit with a lot more presence, and maybe gradually increasing gain (and volume) up to max. Normal? I guess I was expecting just more fuzz if I held the shape constant and increased the fuzz, but it's almost like there's a different set of tones at each position. It works and sounds amazing, so if this is the way it is, excellent - but just wanted to check. I'm not having any issues that sound like build errors, but if this doesn't sound right, it could be that I've got one somewhere.

I'm not super familiar with fuzzes or at least this fuzz, so this may be a dumb question.

RnFR wrote:nope, not a stupid question at all. this fuzz is different than most, as the gain control is mixing together two out of phase stages, so you are going to get some canceling of the signal at different gain settings. the shape control also works in a similar fashion, so you are going to get lots of different sounds there as well. and yes, they don't really work "logically", or how you would normally expect. it's part of what makes this thing so cool! glad you are enjoying it!

just wondering, what layout did you use?

gonzo1999 wrote:excellent! that's kind of what i was suspecting from your description, but wasn't sure. just wasn't expecting it to work the first time i fired it up.

i built the vero board layout that ibodog2 posted

fuzzguy · Post by **fuzzguy** » 19 Jan 2013, 11:21

Yes, I've read that but what I'm doubting about is whether there's supposed to be a clean signal in the mix.

Nocentelli · Post by **Nocentelli** » 19 Jan 2013, 13:02

I built mine a long while back on tagboard (using RnFR's layout, I think): I dismantled it to re-use the box for another pedal, but I do recall certain settings giving a fairly clean sound. As above, I remember the shape and fuzz being quite interactive and not terribly intuitive. I've still got the board in my (massive) box of dead/discarded builds - if I can convince mrs nocentelli to get the kids making snowmen, I'll solder the pots back on, fire it up and see if I get the same range of sounds.