I have a Zoom 506 Bass effects unit for sale. The connector for the 9V battery has been cut but could easilly be replaced. The unit comes with a powerpack. I have no idea if this is worth anything. Just make an offer and it could be yours. EDIT: The unit works perfectly and also comes with the original instruction sheet. Please e-mail to eddie rohr @ g mail.com (no spaces at all) or email@example.com as I do not check this board often anymore.