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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...

€2,99

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...

€2,99

Testing One, Two, Three..

Author(s): Yaniger Stuart

Testing One, Two, Three.. Stuart Yaniger Stuart Yaniger bravely opens Pandora's Box and makes the case for controlled listening tests. Documenting cases that show...

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Book review Burkhard Vogel The Sound of Silence (2nd edition)

Author(s): Popa Ovidiu

Book review Burkhard Vogel The Sound of Silence (2nd edition) Popa Ovidiu Popa's expertise on low noise design makes him well qualified to review Burkhard Volgels...

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Book review Morgan Jones Valve Amplifiers (4th edition)

Author(s): Yaniger Stuart

Book review Morgan Jones Valve Amplifiers (4th edition) Yaniger Our resident tube book reviewer Stuart Yaniger wonders whether a 4th edition of a well-established...

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A low noise laboratory-grade measurement preamplifier

Author(s): Groner Samuel

No lab or hobby shack should be without a preamplifier to measure very low signals with very low noise, defined gain and wide bandwidth. Samuel Groner's latest...

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A Universal Simulated Power Inductor

Author(s): Ramaswamy Ramkumar

Dr. Ramaswamy is back with another usefull piece of lab equipment. Imagine a box with two connections where you can 'dial in' any inductance between 10mH and...

€2,99

A Mechatronic approach to Active Subwoofer Design

Professor Robert Munnig Schmidt teaches Mechatronics at one of Netherlands prestigious universities, but his hobby is in audio. Since a (sub)woofer is nothing else...

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Passive, Discrete, DC Coupled, Open Loop IV Converters

Author(s): Ruschkowski Sigurd

Ruschkowski got inspired by his friend Erno Borbely (who should not need any introduction) to design a discrete I/V converter for his newest DAC. This converter uses...

€3,49

DIY Low-noise Microphone Preamplifiers, Part II

Author(s): Wurcer Scott

Part I of this article appeared in Linear Audio Vol 1 in Spring 2011 and readers have been asking for Part II ever since. This is a very comprehensive treatment of...

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