back to the tonepad home page
do-it-yourself effects projects
complete and partial tube amplifier projects
step-by-step guides with photo illustrations
recommended reading for the serious DIYer
let us know what you think of the site
receive e-mails when projects are added or updated
other great websites dedicated to DIY music electronics
frequently asked questions
how to order


Jack Orman's Overdrive PRO


This layout is for Jack Orman's Overdrive Pro. I've used a dual opamp IC so many different dual opamp IC's can be used. A Colman suggests using the 4558.

Jack suggests that R2 and R4 can be changed to 240k and 1.5k respectively. Experiment.

For more information on this project go to

Listen to a sound sample from A Colman at (Look for AMZ Overdrive Pro down the page)

tonepad_amzoverdrivepro.pdf 90.5 KB-- Sobre PRO, Rev.3.Oct.19.2006

Yes. See our ordering page for all available boards.

AMZ Overdrive Pro US$ 8.00

Small Bear Electronics



23 build reports submitted.
View build reports
Submit a Build Report

information about the administrators and construction of this site legal notices and mumbo-jumbo