How Does a Cathode Follower in a Tube Audio Circuit Work? John E. Johnson, Jr.July 24, 2025 A cathode follower is a vacuum tube circuit commonly used in audio applications for impedance matching, buffering, and signal conditioning. TechnicalTechnical Reviews
Dual Triode Vacuum Tubes 12AX7 and 12AU7 – Why They Are So Popular for Use in Audio Amplifiers John E. Johnson, Jr.June 12, 2025 The 12AX7 and 12AU7 tubes serve different roles in an amplifier due to their distinct electrical characteristics. They are dual triode tubes... TechnicalTechnical Reviews
The Application of Fast Fourier Transform (FFT) to Digital Audio Files John E. Johnson, Jr.May 8, 2025 The Fast Fourier Transform (FFT) is applied to digital audio files in various scenarios, especially when analyzing or processing audio data. PrimersTechnical
Wireless Speakers: Past, Present, and Beyond – Part 5: Google Chromecast and Conclusions John E. Johnson, Jr.March 27, 2025 Chromecast Audio is a wireless audio streaming device developed by Google that allows users to stream music from a smartphone, tablet, or... TechnicalTechnical Reviews
Wireless Speakers: Past, Present, and Beyond – Part 2: BluOS John E. Johnson, Jr.March 27, 2025 BluOS is a proprietary high-resolution multi-room audio streaming platform developed by Lenbrook International. It is designed to deliver... TechnicalTechnical Reviews
Wireless Speakers: Past, Present, and Beyond – Part 1: Introduction and Bluetooth John E. Johnson, Jr.March 27, 2025 Wireless speakers have revolutionized the way we experience sound, allowing users to enjoy high-quality audio without the constraints of... TechnicalTechnical Reviews
Wireless Speakers: Past, Present, and Beyond – Part 4: Apple AirPlay 2 John E. Johnson, Jr.March 27, 2025 AirPlay 2 is Apple's wireless streaming technology that allows users to stream audio, video, and other media from Apple devices to... TechnicalTechnical Reviews
The Use of Inductors in Audio Circuits John E. Johnson, Jr.March 6, 2025 Inductors are commonly used in audio circuits for various purposes due to their ability to store and release energy in the form of... Electronic ComponentsInductorsTechnicalTechnical ArticleTechnical Reviews
Vacuum Tubes (Valves) in Audio, Video, and Other Industries – History, The Different Types, and How They Work John E. Johnson, Jr.February 13, 2025 Vacuum tube preamplifiers and power amplifiers never went away. Perhaps they were on pause for a while, but now, they are everywhere . . . again. TechnicalTechnical ArticleTechnical ReviewsTubesValves
Audio Capacitors: Their Purpose, How They Work, How They Are Manufactured, and How They Affect the Sound John E. Johnson, Jr.January 30, 2025 As audiophiles, we have all heard about the parts in the audio equipment we purchase such as transistors, tubes, capacitors, resistors,... CapacitorsElectronic ComponentsTechnicalTechnical ArticleTechnical Reviews
The Design and Function of Transistors in Audio: Past, Present, and Future Robert CordellJanuary 23, 2025 Bob Cordell, an electrical engineer, is a prolific designer of amplifiers, audio test equipment, and other audio gear. He has published... 30th AnniversaryTechnicalTechnical ReviewsThe Now
Memories of Heathkit and My Dad. Lory HawleyAugust 29, 2024 My childhood was a little different from most little girls, thanks to my father, who included me in his Heathkit building projects that... 30th AnniversaryThe Now
How Has Audio Evolved in the Last 30 Years? Norman VarneyAugust 15, 2024 When given the task of writing an article to celebrate 30 years of Secrets of Home Theater and High-Fidelity magazine, I thought it would... 30th AnniversaryThe Now
Benchmark This! SecretsJune 10, 2024 On May 13 and 14, 2000, Secrets hosted its first DVD player Benchmark Event (Shootout I) in Redmond, Washington, where we tested numerous... 30th AnniversaryFrom the Vault
Cambridge Audio CXA81 Integrated Amplifier. A Video Review. Taps DasSeptember 27, 2023 When the team at Cambridge saw my Monitor Audio Silver 300 review where I used my trusty CXA60 as the amp, they thought I needed a bit of an upgrade. So, they reached out and sent me the step-up, the CXA81 as a long-term loaner. Amplifier ReviewsIntegrated AmplifiersReviews
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