Bob Richards' Audio Projects

Index Page


WARNING: Tube circuits contain high voltages and are dangerous to work on. The author is not responsible for any personal injury or property damage caused by use of the information on these pages.


Who's Bob ?


The Dynaflow 18W Guitar amp 2023


Small Monopolar Preamps 2020


The Vermillion, 2019 Hi-Fi Speaker System


Plan B Speaker System 2019


Bluesman 2018 - 20 Watt Guitar Amp Project


Bob's Bluetooth Lithium Battery Operated Class D Boom-Box Project


My "Tonemeister" Stereo Preamp


My Tube Type Hi-Fi amplifier, "The Music Box"


My LM3886 Four Channel Poweramp 2020


My LM3886 four channel poweramp Project 2016