About the Author

Igor S. Popovich is the author of "Audiophile Vacuum Tube Amplifiers" Volumes 1, 2, and 3, and five other bestselling books on audio transformers, tests & measurements, tube testers, and other audio-related topics. An Australian audio designer with over 35 years of experience and a passionate life-long audiophile, he shares his vast know-how with you in this unique and practical manual.