X FUZZ

[deadastronaut]

erm....i'm lost..

diagram?..

[duck_arse]

you'll need to squint and use your imagination for the bits not shown. everything on the switch is "lower, lesser, swamper" than the 1M and 3 leds, so should just over-ride them.

youse can only tries it.

[deadastronaut]

aha gotcha...ise will tries thems thens...

[duck_arse]

those "schems while youse waits" costs extra, by the way.

[deadastronaut]

 ok, how about a pot of orange sauce to go with your ducks arse?..

[bluesdevil]

About switching to flip between versions, I think you can do it with a 3pdt toggle if you don't mind having hanging coupling caps and LED arrangements.
If having one end of a LED clipping section still connected to another is a problem, a 4pdt toggle switch would work. I luckily got both on hand, so I'll give a try and report back.
So I'm aiming to switch out the two different coupling caps and the two clipping sections (3 red LEDS in one direction and the other with a 1uf in line with back yellow LED pair + that 220k) at the same time.

[pappasmurfsharem]

X ROCK.

pretty cool overdrive/dist...with just a tinker or 2 to the x fuzz...its pretty amazing what you can squeeze out of 2 trannies...



quicky clip..

https://dl.dropboxusercontent.com/u/7464107/FUZZOVERDRIVE.mp3

edit: you can lose the 220k and 220pf too, and even lose 1 led, (the one with the negative to collector)..even smaller


updated

The Always with me always with you tone here is actually really convincing. It's pretty much why I am going to build this. I assume you used a DI like your other recordings?
I really DIG that tone

1. What DI is this, or perhaps the better question is what are you doing to lose the High End sizzle when running direct?
2. So is the other red LED not needed?
3. Was that gain FULL up or was there some play in the "Pre-Gain" or guitar volume (specifically for that Satch-y tone)?
4. Why 500k Volume? That to simulate load of guitar to the next input?

[deadastronaut]

hi nick:

my DI is a behringer ULTRA D120.

i use that and go straight into my mixer channels XLR...

led: i suggest, like all my endlessly tinkering projects that you breadboard it up and tweak to taste, i was just seeing how little i could get away with.  

gain: the gain was backed off on guitar IIRC..so theres a bit of room there.

500k: no particular reason i used that, ive tried 50k and its fine...very loud, too loud in fact compared to bypass , i'll probably end up sticking a taming resistor before the vol pot anyway..


edit: i remember now that i used 3 leds to raise the level, this was before i added the recovery stage,

edit 2: scrap the 1 led idea, it was too gatey even with the 1M in paralell....at least 2 leds were better.

[DDD]

you'll need to squint and use your imagination for the bits not shown. everything on the switch is "lower, lesser, swamper" than the 1M and 3 leds, so should just over-ride them.

youse can only tries it.

Switching will produce very loud pop sound.
1 Megaohm pot (as a variable resistor) instead of the switch is a good substitute I guess.
Also, you can omit 1MOhm constant resistor since Q2 will be biased via 1M pot in series with 220k resistor.
* It's necessary to use 1M pot just as a variable resistor with "upper" and "middle" pins connected together to avoid scratchy sounds while turning 1M knob.
** 1M pot can change fuzz/rock modes smoothly.

[pappasmurfsharem]

hi nick:

my DI is a behringer ULTRA D120.

i use that and go straight into my mixer channels XLR...

led: i suggest, like all my endlessly tinkering projects that you breadboard it up and tweak to taste, i was just seeing how little i could get away with.  

gain: the gain was backed off on guitar IIRC..so theres a bit of room there.

500k: no particular reason i used that, ive tried 50k and its fine...very loud, too loud in fact compared to bypass , i'll probably end up sticking a taming resistor before the vol pot anyway..


edit: i remember now that i used 3 leds to raise the level, this was before i added the recovery stage,

edit 2: scrap the 1 led idea, it was too gatey even with the 1M in paralell....at least 2 leds were better.

So was the first xrock schem the tone for that clip?

If so I THINK this is right.

[pappasmurfsharem]

So was the first xrock schem the tone for that clip?

If so I THINK this is right.

Ahh nope 1meg would need to be prior to pregain.

[nocentelli]

Ahh nope 1meg would need to be prior to pregain.

I would have thought you could leave off the first 1 meg since the pre-gain pot is in parallel with it anyway.

[pappasmurfsharem]

Ahh nope 1meg would need to be prior to pregain.

I would have thought you could leave off the first 1 meg since the pre-gain pot is in parallel with it anyway.

Could yeah.

Tried breading the first xrock scheme.

As someone pointed out before anti parallel LEDs doesn't help only 1 clips

It was definitely more fuzzy than the sound clip. Not a bad sound but it was definitely fuzz as opposed to distortion.. Which was mildly disheartening

[deadastronaut]

@nick

yeah i stuck a SWTC after the clipping thats why it was fizzy...go with this. 

[pappasmurfsharem]

@nick

yeah i stuck a SWTC after the clipping thats why it was fizzy...go with this. 

Why it WAS fizzy or WASN'T?

As in the First XROCK clip has the tone control on it?

[deadastronaut]

Thinking back i think it did, sorry.,....

[pappasmurfsharem]

Thinking back i think it did, sorry.,....

No apologies necessary sir.

It wasn't so much fizzy when I breaded it. But it was definitely a "Gatey" fuzzstortion versus a distortion. I also used 2N5089s though since my bag of 88s mysteriously disappeared

[deadastronaut]

it shouldn't be gatey at all, in fact i had a few mates over last night and they played through it (as above schematic) on breadboard

and it sounded f....... nice!, really cool heavy blues , hendrixy etc...  

have you got the leds the right way around ?.,. and the 1M in parallel...

the leds light as you play?..

[pappasmurfsharem]

it shouldn't be gatey at all, in fact i had a few mates over last night and they played through it (as above schematic) on breadboard

and it sounded f....... nice!, really cool heavy blues , hendrixy etc...  

have you got the leds the right way around ?.,. and the 1M in parallel...

the leds light as you play?..

Only 1 led worked when in anti parallel in series both worked
1M definitely in parallel on the first stage maybe my 2n5089s where much higher gain.

[deadastronaut]

after messing around with the X ROCK again, ive settled with the last schemo above...its  a good all rounder.

i had some interesting sounds with moving the 'starve' Q2 pot to the before the led diodes instead, and it was better volume matching wise to when full anti clockwise etc..

but really the sucky strainy synthy sounds were better where it was...so i'll stick with that.

as for switching between X ROCK /X FUZZ i think i'll just build them seperately in the end...

now i have the X ROCK sorted, i'll pop back to the XFUZZ and tweak that again....