How to Gain Gain: A Reference Book on Triodes in Audio - download pdf or read online

By Burkhard Vogel

ISBN-10: 3540004297

ISBN-13: 9783540004295

ISBN-10: 3642330320

ISBN-13: 9783642330322

ISBN-10: 3642330339

ISBN-13: 9783642330339

The 34 chapters of the second version of ways to achieve achieve supply a close perception right into a assortment (54) of the commonest achieve generating, consistent present producing percentages, and digital noise production of triodes for audio pre-amplifier reasons. those chapters additionally provide whole units of formulae to calculate achieve, frequency and part responses, and signal-to-noise ratios of sure development blocks built-up with this sort of vacuum valve (tube). In all situations distinctive derivations of the achieve formulae also are awarded.

All what's wanted are the information sheet valve attribute figures of the triode's mutual conductance, the achieve issue and the inner plate (anode) resistance. To calculate frequency and part responses of achieve phases different information sheet established enter and output capacitances must be taken into consideration too.
To calculate move services and signal-to-noise ratios for any type of triode pushed achieve level, together with all its bias environment, frequency, part, and digital noise influencing parts, instance Mathcad eleven worksheets as an important simulation device for every bankruptcy enable effortless follow-up and alertness of the respective formulae. loose obtain of all worksheets is assured from the editor's web-site.

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Extra resources for How to Gain Gain: A Reference Book on Triodes in Audio Pre-Amps

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1 electron cloud and the grid G. In data sheets we may find the input capacitance ce of a triode in common cathode configuration. This capacitance is basically formed by the sum of cgc and cel. Thus, with the exception of a tiny capacitance increase at the grid the influence of yel on the noise voltage production can completely be ignored in the audio band. It has a great influence on frequency ranges[100 MHz only, hence far outside B20k. 4 The Equivalent Noise Four-Port of the Triode The step from the ideal triode to a real triode requires the integration of a noise current source at the grid (Fig.

Output Referred SNs ........................................................................................................ From Output to Input Referred SNs and Vice Versa ..................................................... Noise of Passive Components and Resistance Excess Noise......................................... 1 Resistor Thermal Noise ........................................................................................ 2 Resistor Excess Noise...........................................................................................

10 4 fc [Hz] Fig. 3 The Frequency Dependent Equation of the Triode Noise Voltage The frequency dependent form of the triode noise voltage thus becomes: rffiffiffiffiffiffiffiffiffiffiffiffi fc en:rN ðf Þ ¼ en:r N þ1 ð2:25Þ f In Fig. 25) plus the noise effects of all passive components of the Fig. 9 example gain stage. This equation is the main source to calculate SNs in any kind of audio frequency bandwidth. 25) by two brackets. 25) comprises additional points that must be considered when developing gain stages with a low-noise goal.

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How to Gain Gain: A Reference Book on Triodes in Audio Pre-Amps by Burkhard Vogel


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