Anderton's Tube Sound Fuzz... Help?

[ORK]

Shortcircuit that LED!

[jmth]

That's what I did yesterday and the chirp increased
now the bat.V is 8.90-9.0, i will buy another one, this was in home for a looooong time...

[jmth]

Ok, to explain you better the situation, I have made a sound record:

Lower the volume...
https://soundcloud.com/jmth1994/fuzz

Now the effect doesn't sounds if i'm not touching the volume pot input. The order is this: clean, activated touching the strings, and the vol. pot, fuzz up-down...

[Mark Hammer]

Ahhhhhhh.....that's not a "chirp", that's instability and oscillation.

Something is likely providing far more gain that it ought to.

[jmth]

That's a chirp caused by instability xD
I have 2 ways to try fix it:

- 1: you say to me what can I do.
- 2: I take the pedal and I try to get an oscilloscope in university and find what's doing the oscillation. Complicated and temporaly not posible.

[jmth]

Quasi-fixed it!! 
I changed C2... 10pF at the right with 3300 pf, and it sounds reaaaaaally well, but a background noise caused by interferences.
I'm thinking about rising the capacitor's value at 10uF, possibly (i did it in a simulation and worked...)

Thank you all people!!

[lonewolf]

great work..now you can build some other hex inverter circuits..they all sound great..look at run off groove's double d and ube screamer and a big muff hex inverter as well as a eq circuit..

[DavidRavenMoon]

Do you have this built in an enclosure? Also keep the input and output wires away from each other.