Todd (aka taj) has prepared high quality schematic of the DX Precision I amplifier.
Copyright Notice: The amplifier circuit designs presented on this website are the Copyright © 2006-2010 of Carlos Mergulhão. All rights are reserved. License is granted for anyone to use the circuits, drawings and information here only to build their own personal (non-commercial) amplifiers, but under no circumstances are these circuits, drawings and information to be used to produce a commercial product to be sold anywhere in the world, without first arranging a license agreement with the copyright owner. Use of the name "DX Amplifier" or "DX Amp" to represent a commercial product is fraudulent. Licensed vendors will all be listed here.
Warning: Be aware of unlicensed amplifier kits being sold under the misrepresentation that they are DX Amplifiers. These kits are currently not official, are not licensed and are not supported by the designer of the DX Amplifier series of DIY amplifier projects.