Hammond B-3 Organ & Leslie 122/147 Easy Improvement and Restoration Tips for NON TechniciansMany years of experience have been finally put together to provide you with an amazing book, written in a non technical manner, to simplify the classic Hammond sound restoration and improvement process for many vintage tone wheel organs and Leslie speakers! With this information in your hands, you will be empowered to take your aged and tired instruments and give them new life. All that, for a fraction of the cost you would pay from a local organ