Guitar Amplifier Preamps book

Richard Kuehnel is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers. He has been a presenter at the International Conference on Signal Processing, the International Conference on Acoustics, Signals, and Signal Processing (ICASSP), and the Asilomar Conference on Signals, Systems, and Computers.

Guitar Amplifier Power Amps book

He has written for the IEEE Transactions on Circuits and Systems and is the inventor of five US patents: an oscilloscope display, an analog integrated circuit, two digital integrated circuits, and a Class D power amplifier.

The Fender Bassman 5F6-A book

He has written 3 books on guitar amplifier design: Guitar Amplifier Preamps, Guitar Amplifier Power Amps, and The Fender Bassman 5F6-A. He is also the author of online tutorials on the mathematics of tube amp design and pentode preamp design.