All articles

The Mini-Simplex

Author(s): Polisois Ari

Ari has been publishing his DC-coupled, Modulating Bias design as the Simplex amplifier. In this article, he combines this technology with the Split Core Stereo...

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A New Low-Noise Circuit Approach for Pentodes

Author(s): Blöhbaum Frank

In the tube world, it is taken for granted that if you want a low noise amplifier you don't use a penthode; penthodes have higher noise and more 3rd harmonic...

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Letter to the Editor Dave Kimber

Letter to the Editor Dave Kimber and Burkhard Vogel. Burkhard Vogel and Dave Kimber commented on Frank Blöhbaums article in Vol 0 A New Low-Noise circuit...

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Letter to the Editor Peter van Willenswaard

Letter to the Editor Peter van Willenswaard Peter van Willenswaard comments on Stuart Yaniger's article in Vol 0: Split the Difference: The Truth about the Humble...

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Letter to the Editor Burkhard Vogel

Author(s): Vogel Burkhard

Letter to the Editor Burkhard Vogel Burkhard Vogel comments on two articles in Vol 0: Frank Blöhbaums A New Low-Noise circuit approach for Pentodes; Joachim Gerhards...

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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 - 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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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

Multiplied Transconductance Amplifiers

Author(s): Blöhbaum Frank

In the heydays of AM radio receivers some tubes were produced having up to 6 grids, called octodes. These tubes can be arranged as a triode and a hexode in a common...

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Multiplied Transconductance Amplifiers - part 2 - high power amplification

Author(s): Blöhbaum Frank

Multiplied Transconductance Amplifiers – part 2: high power amplification  Vol 8

Frank Blöhbaum

Frank Blöhbaum always comes up with quite...

€ 1,99

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