DEMO Nr. 8 (Nein - 900)

[Ale_jellybelly]

Fuzz pedal is in danger of growing stale. I'm taking it to strange new places
Number 8
*buuurp*


Very cool sounding fuzz but there's some strange fizz/fuzz/distortion going on underneath
View attachment Senza titolo - 20:04:26, 23.28.mp3
You can hear it well in the recording, there's a background distortion that decays earlier than the rest.
With BIAS cranked around 3 o clock, it's barely noticeable (near the end of the recording) but anything below that, you can clearly hear it
Question for those who built it, is it normal behaviour?

 

[Ale_jellybelly]

@Erik S I read that you had a weird note decay too
Is it something like what I recorded?

 

[Erik S]

@Erik S I read that you had a weird note decay too
Is it something like what I recorded?

That definitely sounds familiar.

I eventually gave up and read the manual - not something I expect to have to do with a fuzz pedal, but it helped to understand the controls a little better. I also watched a bunch of demos and got some good non-intuitive suggestions for knob settings.

There are two stages with some separate controls. I ended up trying to think of it like it was two pedals in one box.

 

[Ale_jellybelly]

After listening to this demo I think it's part of the sound:

With some settings, it really sounds like there are two different effects, pretty cool actually

And I did read the manual as well, it's useful indeed

 

[Ale_jellybelly]

Well I've been playing my pedal a little more and it has considerably less gain than the demos I've been hearing
I'll need to open it up and measure the j201s I've used

 

[Einzeln]

I have a lot more gain or dont use it that clean.
And I still I think the videos have more gain

 

[Ale_jellybelly]

I have a lot more gain or dont use it that clean.
And I still I think the videos have more gain

Did you measure the jfets?

 

[Einzeln]

No I bought a tester though. But somehow it scares me

 

[johnk_10]

Well I've been playing my pedal a little more and it has considerably less gain than the demos I've been hearing
I'll need to open it up and measure the j201s I've used

i measured the Jfets in mine and i have the same problem when comparing it to my original.

 

[Ale_jellybelly]

i measured the Jfets in mine and i have the same problem when comparing it to my original.

I mean it sounds good, but it's not as fuzzy or as gated as it gets in most of the demos I've heard.
Have you tried tracing your original to see if there's any difference?
There's an interesting discussion over on Diystompboxes (https://www.diystompboxes.com/smfforum/index.php?topic=134324.0), with a couple of suggestions for increasing gain

 

[Einzeln]

No I bought a tester though. But somehow it scares me

I am serious. I really need to get started with measering but more important, I need to understand those measurements.
I have no Id what the Vgs it all means

 

[Ale_jellybelly]

I am serious. I really need to get started with measering but more important, I need to understand those measurements.
I have no Id what the Vgs it all means

Same! When I will feel adventurous there are some good articles about it
I have an AliExpress T7 tester that can read Jfets but I haven't fully understood how to

 

[Einzeln]

I have this one. My guess is that I can put smd parts on the pcb with the 1,2 3 markings.

 

[johnk_10]

i just tested my build again comparing it to my original and it sounds pretty close. it has just a bit less fuzz