EWS Tri-Logic Bass Preamp II

Here's a pretty simple but effective bass preamp from EWS. It's a 3-band EQ being pushed by a MOSFET gain stage. Looks like EWS made a version for Xotic with the same name. Not a lot different between the two other than some value changes laid out in this schematic on FSB. I've laid it out for a 125B with top mounted jacks. It runs off an 18v supply so use your favorite charge pump if you want to include that in the pedal.

EWS Little Brute Drive

Found this one on FSB and haven't seen any layouts for it, so I thought I'd give it a go. Originals are in 1590A enclosures with the Tone and Volume controls as trimmers, but I've laid them out as external controls. There seems to be some discrepancy on the taper of the gain control in the schematic, unless EWS uses a dual-gang pot with different tapers. I'd just go with a linear taper and hope for the best. Should fit just fine in a 1590B with board mounted pots.

EWS Bass Mids Control

Here's another one for the bass players. It's a pretty handy EQ pedal from EWS. Originals come in a 1590a, and sadly I wasn't able to duplicate that here, but it will fit fine in a 1590B with board mounted pots. Originals have the Volume control as an internal trimmer, but I've moved that to a full sized pot for more control (and a newer version of this pedal has all 3 control externally as well, so maybe I'm on to something haha). Here's the schematic for reference.