always , I even tried to decouple the supply for the IC, it's a shame because it really sounds good but the clicking noise is a deal breaker

does it 'Ticks' on the oscillation like a moen shaky Jimi ? that clicking noise drives me crazy

I got this beautiful pedal I bought second hand that has a very loud "Pop!" sound when I press the bypass button both activating and deactivating, I think there is a DC in some point, maybe with a resistor to ground somewhere could be cured but I have no idea where to apply it in this SMD ...

I have a trex Mudhoney II and a trex Dual Drive , I thought they were almost the same BUT the mudhoney is a bit too trebly, especially with my Fender Princeton. Any idea about the differences between the Mudhoney II vs original Mudhoney ?

I've just modded my rat , my aim was to increase bass, so I changed the 2.2uF cap on the feedback loop to a 4.7uF and I increase the input cap to 1uF, I think it's now perfect for my rig (it's more a fuzz now , so it may not be good for everyone) but I' incidentally have noticed it works way better ...

since I've found that my microvibe works way better with a buffer in front (that's why I'm using a Boss as a first pedal) I was mumbling.... what if I put a simple Jfet buffer in place of the first 22K R ? I mean, a common 1 M to grounfd to the gate, Drain at 9V, 10K at source and from the source th...

it seems that the changed values bring the same freq cut of a standard RAT more or less, the asymettrical clipping may indeed sounds different

reviving a zombie thread ....

I was reading the schematic , in the rotovibe the four stage cap values are not the 'common' univibe values , I think that is part of the rotovibe characteristic sound.

Has anybody ever tried these values in other unit such as phase 90 or some univibe clone ?

so, we can make a rat sound like a mudhoney with just two mods, 4.7uF in place of the2.2uF cap on the feedback loop and a 1uF cap in place of the 22nF on the input, interesting

I was expecting a bigger graph difference, anyway, it's clearly audible

So here it is: boss_od3_schematic - kanengomibako_dec_2021.png Hi, after 11 years I come back to this thread to share the only really useful mod I've found in this pedal, but, well, it works to tame the bass, my only complain about this pedal: decrease C13. Put a 22n or even a 18n in place of that ...

CheapPedalCollector wrote: ↑07 Feb 2021, 22:12 tbh, it seems like a tube screamer clone

I have it and although it sounds similar to a TS9 it's not a strictly clone sonically, I compared them side by side, I do prefer the nux

hi, such an old thread... I've seen Mentone sells a modified version with a switchable bass cut, I wonder how he can do it. I see two places for a different çap value, the cap at the output of the first Fet and the bypass cap over the source resistor of the second Fet. Any idea? could anybody confir...

the boss Instagram post reports that the tone circuit is differently tailored from the standard SD-1 in mode classic, it would be interesting to know the tone/resistor cap value.

hi,
I have an original Formula 55 pedal, it's awesome but it has a noticeably problem with my setup, the volume has a bump and it's usable in the first 1/5 of the volume range, it practically goes from 0 to loud in a fraction of the turn, has anyone noticed this? any idea how to solve it?

Intripped wrote: ↑12 Dec 2020, 07:38 It works because there is R7. C9 is just in parallel with it

right, my bad, I was sleeping

Intripped wrote: ↑11 Dec 2020, 14:10 what's the purpose of C9?

agree, that way it doesn't work, it's an open circuit

A plain FF, doesn't it oscillate at max? BC549 are quite high hfe devices

Imho there are 3 main points in every fuzz face build, using JD2F2 schematics they are: C3 - lowering it to 1uF (film) or 0.47uf the sound results less boomy, more open, since less bass hit the input of the first stage C2 - depending on versions it seems that sometimes you can find a 0.1uF for outpu...

CheapPedalCollector wrote: ↑29 Nov 2020, 12:54 They did that to reduce PSU noise.

ok, but how? I don't understand the purpose of adapting the impedance, a buffer doesn't reduce hum by itself as far as I know