How the output stage works and purpose for a pentode tube

Explanation of how a vacuum tube works. It's pure awesomeness!

Coupling between stages, the load under AC conditions, and why we use a cathode bypass capacitor.

An explanation of vacuum tube characteristics, load lines and operating point using an input stage triode tube.

Big picture view of the AE1 Amplifier circuit that we are using for this explanation of how a tube amplifier works.

Continued Core Concepts: Resistors, Capacitors, Inductors and Transformers

Tube Amplifiers Explained Blog Series, Core Concepts: What is Sound? Voltage, Current, Resistance and Ohm's Law

A blog series explaining in detail how a single-ended tube amplifier circuit works using the AE1 Kit circuit.

Build blog of Frugal Horn full range speakers--with hidden Superman Heat-Vision colored back panels!