madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: paolob on March 20, 2016, 12:46:33 PM

Title: Chunk Chunk
Post by: paolob on March 20, 2016, 12:46:33 PM
Hello Everyone I'm new to this forum

I've built a Chunk chunk but it seems a little bit to harsh and fizzy for my tastes. Is there a way to tame this pedal to make it sound more fat and less fizzy? Maybe the gain i too high and I noticed that high are very harsh. I run it trough a fender handmade Fender Bassman 5f6/ 135

Thanks to all!
Title: Re: Chunk Chunk
Post by: oldhousescott on March 20, 2016, 06:07:25 PM
I performed a mod to mine to bring it more in line with the Recto circuit. That mod is documented here (http://www.madbeanpedals.com/forum/index.php?topic=3898.0). It helped tame the gain (still a lot available). No problem with stability or oscillation either.
Title: Re: Chunk Chunk
Post by: paolob on March 20, 2016, 06:34:20 PM
Thank you very much I will give it a try!
Title: Re: Chunk Chunk
Post by: darrenw6000 on March 20, 2016, 11:37:34 PM
Does reducing the treble and mids help. Just built this myself, just needs knobs. 1 thing I ran into was biasing. Q2 and Q3 are around 4.5v as document states but ive had to put Q1 at 8.71v and Q4 at 6.21v ..if I was to put them on 4.5v I get horrible feedback. These seem to work without any noise issues.