All articles

Zen -> Cen -> Sen - Evolution of a Minimalistic IV Conversion Circuit

Author(s): EUVL

This article has been inspired by previous work by LC Audio, Leach and Nelson Pass. Patrick was intrigued by the operation of the Leach circuit as a current conveyor...

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Simple Loudspeaker Correction Filters

Author(s): Gevel Marcel van de

Active filter stages having two (usually complex) poles and two (usually complex) zeroes can be very useful in applications such in active loudspeakers for correcting...

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The Ultra-Linear Power Amplifier - An adventure between triode and pentode

Author(s): Moers Rudolf

TWhen Rudolf Moers discovered tube amplifiers, he could not find a good book that explained various concepts like the Ultra-Linear circuit, from a theoretical as well...

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Book review - The Design of Active Crossovers by Douglas Self

Book review - The Design of Active Crossovers by Douglas Self Castor-Perry Kendall (aka The Filter Wizard) reviews Douglas Self's last work The Design of Active...

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Book review - Fundamental Amplifier techniques for Electron Tubes by Rudolf Moers

Author(s): Tent Guido

Book review - Fundamental Amplifier techniques for Electron Tubes by Rudolf Moers Vol 2

Guido Tent

Guido presents an extensive review of Rudolf Moers...

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Guest Editorial - Digital Audio: Progress, Stagnation and Regression

Author(s): Galo Gary

Guest Editorial - Digital Audio: Progress, Stagnation and Regression Gary Galo Gary offers an insightfull review of the history of digital audio developent from the...

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A New Amplifier Topology With Push-Pull Transimpedance Stage

Author(s): Groner Samuel

In this article Samuel reviews existing transimpedance stage configurations, and then introduces an amplifier topology which uses a novel push-pull transimpedance...

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SIT Nemesis!

Author(s): Pass Nelson

In Linear Audio Vol 0, Nelson Pass paid tribute to the classical single-ended transformer-coupled triode amplifier with the Arch Nemesis. Inspired by Jean Hiraga'...

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The C70 KT-88 Vacuum Tube Stereo Amplifier

Author(s): Cordell Bob

In The C70 KT-88 Vacuum Tube Stereo Amplifier, Bob Cordell shows he is equally well versed in tube technology as he is in solid state design. This amplifier uses...

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The Class i output stage

In this article, Kendall presents a solid state unity-gain power output stage that has very low distortion and for which the biasing current can be set without the...

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