User control JFet bias?

[punkin]

Hi all,

I'm building a little ciruit where I'm using a couple JFets. Each has trimmers in the source. Currently it's on the bread board. I was gonna find a pleasing setting then set and forget but as I go on, I think I like having access as it has profound impact on the sound.

Any concerns with this? Is there a possiblity of smoking the transistor(s) if turned up and left that way? I was wondering if maybe I should put a small/minimum value resistor in series with the control to keep things from getting driven to absolute max.

By the way, I'm using the simple J201 booster ciruits on GEO's site.

[edvard]

It shouldn't fry as long as you are keeping under about 75% of the JFET's maximum Idss with the bias turned all the way out.

[aron]

>I was wondering if maybe I should put a small/minimum value resistor in series with the control to keep things from getting driven to absolute max.

That would work.

[punkin]

I thank you kind Sir and all the rest who replied.