Simple Class A Amplifier 

Wireless World April 1969

Power Supply 

15-20W Class AB Audio Amplifier

Wireless World July 1970

Power Supply

A Direct-Coupled High Quality Stereo Amplifier

Hi-Fi News November 1972

A Simple 30 Watt Integrated Amplifier

Hi-Fi News January 1980

An Introduction to MOSFETs 

(Update to ‘Simple 30W Integrated Amplifier’)

Hi-Fi News December 1980

80-100W MOSFET Audio Amplifier

Wireless World August 1982

Audio Design Amplifier

ETI July 1984

Power Supply

Class A/AB MOSFET Power Amplifier

Electronics & Wireless World March 1989

Audio Design 80W MOSFET Amplifier

ETI May 1989

Power Supply

IGBT Audio Amplifier

Electronics World & Wireless World May 1992

An Integrated Audio Amplifier

Electronics World & Wireless World June 1993

Power Supply

Class-A Power

Electronics World September 1996

Power Supply