Bassman Fetzer built and some questions

[solarplexus]

Hi,

I just finished building the Bassman Fetzer... I have replaced the two .1uf caps with .22uf (I only had those available) and I am wondering if it works correctly.  The tone coming out of it is AWESOME! but it can't go louder than unity level.  Is it normal ? 

I also modded R6 with a 10k pot as suggested in a thread for bass control.

Is there a way to get more ouput from this wonderful little circuit?

Would there be a way to push that J201 further into mild overdrive without having to put a boost in front of it ?

Thanks for any help you may provide,

Matt

[mac]

Do not remember the schematic but if it sounds awesome... why change it? 

Try another fet, with same Vgsoff but more gain. Maybe a 2sk117?

mac

[MartyMart]

Try reducing the bypass resistor dowm to 820r or 680r and rebias, it may get a bit
"farty" sounding though - a common jfet problem !
Or replace it with a 4k7 pot wired as a variable resistor.

[solarplexus]

the bypass resistor will change what ?? the ouput or the amount of grit in the circuit ??


Is it normal that the output can't go louder than unity gain??

[solarplexus]

would it be possible to add a clipping diode in that circuit just to get a little grit from the J201?

[John Lyons]

You should be able to get a good bit of boost. I wired one up and had a missed connection and got the same thing you have at unity.
If you have a breadboard that would enable you to try some things out to see how you like them.
Try a few different fets or the same number, sometimes you get a bum one that will work but not have the oomph!

Clipping diods will give you more grit but will lower tio volume of the output. You will need a good amount of boost to drive the diodes and still have decent output level.

John