Guitar Amplifier Electronics: Basic Theory - a modern approach to understanding tube amp design. Learn more.

Guitar Amplifier Preamps - upstream circuits using triodes and pentodes. Learn more.

Guitar Amplifier Power Amps - from the phase inverter to the loudspeaker. Learn more.

The Fender Bassman 5F6-A - plus Marshall's Bluesbreaker and Plexi. Learn more.

Georg Simon Ohm - Imagine a world without Ohm's Law. Learn more.