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X FUZZ

Started by deadastronaut, March 14, 2014, 06:51:37 AM

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samhay

#40
April 10, 2014, 06:57:27 AM
That should work. Perhaps try a resitor between the input cap and base?
I'm a refugee of the great dropbox purge of '17.
Project details (schematics, layouts, etc) are slowly being added here: http://samdump.wordpress.com

deadastronaut

#41
April 10, 2014, 07:03:02 AM Last Edit: April 10, 2014, 07:10:34 AM by deadastronaut
cheers sam, yeah i'll give it another go...

edit: yep the buffer works ok now with a resistor, but the 'holding back' at min guitar vol is still there.....

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

deadastronaut

#42
April 11, 2014, 10:48:47 AM
X rock on breadboard..DI..mixer...no amp.

jamming along with a YT backing elevator music ::)...just testing out on HSS crapocaster ...goes nice with wah, and lovely and round with tone turned down on neck pup...i love it, quite versatile.

get jazzy baby.. 8)

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

p.s. i pm'd gus about the 'gatey' issue...hopefully he'll chime in...i'm off to get beer its friday..whoohooo.. :icon_cool:
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

deadastronaut

#43
April 13, 2014, 12:16:07 PM Last Edit: April 13, 2014, 12:32:54 PM by deadastronaut
i went back a step and took out the gain pot to see if it was that causing the 'hold back'

but nope...still does it,

i put 2 leds in series to get a bit of level boost/ tried other diodes...still does it..

much more prominent 'hold back' on single coil neck pup too...hmmmm....

i have a feeling the issue must have something to do with the very edge of the diodes/leds clipping (off/barely lighting)...

hmmmm what to do?.

edit:

aha, i seem to have cracked it...A 1M resistor in parallel with the leds...PUKKA.  nice n clean to full on.  8) 8) 8)





https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

samhay

#44
April 13, 2014, 02:31:37 PM
yep - it was a biasing issue.
Haven't found any breadboard time yet, but should do this week - is the 1M resistor the only change to the latest schematic?
I'm a refugee of the great dropbox purge of '17.
Project details (schematics, layouts, etc) are slowly being added here: http://samdump.wordpress.com

deadastronaut

#45
April 13, 2014, 02:52:32 PM Last Edit: April 13, 2014, 02:54:04 PM by deadastronaut
just updating schemo now..

i added a SWTC in there just for now (after Q2) ...tinkering with that a little first.  8)
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

Will.mendil

#46
April 13, 2014, 03:09:11 PM
Wow! Now I know what I am building Tuesday. This is great! Will be testing your variations and let you know which I will enclose.
Don't know what to do with a paritculare transistor? Check this website where stompbox pedals are listed by what transistors they use

http://scfxguide.wordpress.com/

Will.mendil

#47
April 13, 2014, 03:09:34 PM
Where did it come from? who designed it?
Don't know what to do with a paritculare transistor? Check this website where stompbox pedals are listed by what transistors they use

http://scfxguide.wordpress.com/

deadastronaut

#48
April 13, 2014, 03:34:08 PM
its just random breading really...

i highly suggest  getting  the breadboard out...there are 3 different fuzz/dist so far...

the X fuzz (extreme)

the X rock (2 variants.

after adding the tone control it will need a recovery stage too..these are just preliminary experiments really, but i intend to be able to switch between the over the top X FUZZ and the Xrock...2 in 1  effect.

eventually...these things take time..well it does with me anyway.. ;)..but it should be pretty cool in the end. 8)

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

Will.mendil

#49
April 13, 2014, 03:56:44 PM
Indeed that is a good idea. How long do you recon it ll take you? Should I wait ? I'll still breadboard this one and see what mods I can bring to it but i have not got much time so id rather get stuff other people have perfected :s
Don't know what to do with a paritculare transistor? Check this website where stompbox pedals are listed by what transistors they use

http://scfxguide.wordpress.com/

Will.mendil

#50
April 13, 2014, 03:57:24 PM
Do you have sound clips f you different mods ? Please :)
Don't know what to do with a paritculare transistor? Check this website where stompbox pedals are listed by what transistors they use

http://scfxguide.wordpress.com/

deadastronaut

#51
April 13, 2014, 04:21:21 PM
@wil, i suggest you hang on for a bit....these things can't be rushed...but its a tiny circuit, nice n quick to breadboard up, so give it a go man. 8)

anyway:

one little problem i just noticed (there always is eh ::)) 

as the gain is lowered , so the top end rolls off too....hmmmm.... ???

heres the latest..

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

Will.mendil

#52
April 13, 2014, 04:43:36 PM
@deadastronaut sorry if it looked like I want to rush you. My bad. Moreover by the time I get all the parts from tayda ( enclosure and stuff, as I got all the components here) you ll be able to finish 20 new designs ;)

The three LEDs are the clipping diods aren't they? Aren't you supposed to put at least two, one  opposite the other? Anyway as you said. Will be putting and testing them next week
Don't know what to do with a paritculare transistor? Check this website where stompbox pedals are listed by what transistors they use

http://scfxguide.wordpress.com/

Gus

#53
April 13, 2014, 05:07:07 PM
Why do you have R1?
Voltages help.

Will.mendil

#54
April 13, 2014, 05:17:40 PM
It a pretty standard design. The r1 pulls down unnecessary current if I am not mistaken (might be though)

This guy explains stuff pretty well. It is applied to tubes though

http://youtu.be/mrMGGHp8yLk
Don't know what to do with a paritculare transistor? Check this website where stompbox pedals are listed by what transistors they use

http://scfxguide.wordpress.com/

Gus

#55
April 13, 2014, 05:20:25 PM
There is no need for R1 a 500K input volume control would work.

deadastronaut

#56
April 13, 2014, 06:41:35 PM
Hi gus, Yeah R1 isnt on my board , ....

why would the tone change when adjusting the pregain though?
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

Brymus

#57
April 13, 2014, 07:09:41 PM
With the pre gain pot,R1 isn't needed as it actually just lowers the input impedance by way of paralleling the pot.
Would be different if there was a DC blocking cap before the pre gain pot after R1.
I think,the pot is forming a filter with your C2 which is why it is rolling off some high end.
Not versed on filters just guessing.
Sounds really cool,nice doomy fuzz Rob  8)
I'm no EE or even a tech,just a monkey with a soldering iron that can read,and follow instructions. ;D
My now defunct band http://www.facebook.com/TheZedLeppelinExperience

Brymus

#58
April 13, 2014, 07:16:39 PM
Also instead of SWTC why not a BMP (with the body mod)  tone control?
That would give you scoop or hump ability which should sound good with this fuzz.
I'm no EE or even a tech,just a monkey with a soldering iron that can read,and follow instructions. ;D
My now defunct band http://www.facebook.com/TheZedLeppelinExperience

PRR

#59
April 14, 2014, 12:08:10 AM
No output DC-block capacitor?
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