This second edition of the book has much of the original book with the addition of a more detailed example of designing and building a vacuum tube amplifier. The amplifier design example takes you through the steps of fabricating a traditional chassis layout and designing a Class A stereo amplifier.

Project circuits with layout drawings included at the back of the book:

• Line amplifier with adjustable 0 to 25 dB gain

• Turntable preamplifier

• 6V6/6L6 Class A monoblock amplifier

• 30-watt Class AB push-pull monoblock amplifier

• Basic 5-watt guitar amplifier

The 30-watt monoblock amplifier is designed for tube rolling.

Tube rolling: plugging in different tube types of similar operating characteristics.