View Bass Preamp Pedal Schematic Gif. This is a simple preamp with some basic tone control intended to be paired with a piezo pickup in a clone of one of the range of 21 scale rubber string'ed bass guitars (aka ukulele bass). This schematic circuit is a preamplifier designed for bass guitars.

Peavey 5150 Overdrive Pedal Easyeda from image.easyeda.com

It has active treble and bass control pots. Here is the circuit diagram and pcb design for relatively low cost diy bass guitar preamp pedal uses fet k117 or equivalent. Housed in a small footpedal box for use on the floor, it measures just 4.5 x 4.5 x 2.25 and weighs 1.5 pounds.

The first riff is clean and the second riff is the same as can i ask why theres 2 schematics?

Schematics and printed circuit board layouts for rare pedals like the tycobrahe octavia, clyde mccoy wah and lots of vintage fuzz pedals! A good place to ask about effects is ampage and alt.guitar.effects, a good newsgroup. It has active treble and bass control pots. Volume, bass, treble and midrange.