Sadowsky Onboard Bass Preamp

[Ross]

I don't think this one would be too difficult to do. 2 JFET gain stages with a Blackface tone control glued into the middle.
http://freestompboxes.org/download/file.php?id=10842&mode=view

[Roast]

HI
Which Pots have this pre-amp?

[IvIark]

Yes they'll be a vero for this one coming soon, but it won't be by me