Original title: Hybrid Microphone Preamplifier With Variable Selection Of Amplifier Technology
Authors: Musil, Tomáš
Document type: Papers
Language: eng
Publisher: Vysoké učení technické v Brně, Fakulta elektrotechniky a komunikačních technologií
Abstract: This paper deals with the design of a studio level hybrid microphone pre-amplifier using a vacuum tube and semiconductor technology. The pre-amplifier circuit also contains an analog VU meter, 48 V phantom power supply, variable high pass filter, phase inverter switch and adjustable stage input impedance. This paper also deals with the design of a multi-voltage power supply unit and microprocessor controller unit ensuring completely automatic amplifier functions. The end of the paper is dedicated to a characteristics measurement determining its parameters.
Keywords: heating; microphone; microprocessor; operational amplifier; phantom power; preamplifier; triode; Vacuum tube
Host item entry: Proceedings of the 24th Conference STUDENT EEICT 2018, ISBN 978-80-214-5614-3

Institution: Brno University of Technology (web)
Document availability information: Fulltext is available in the Brno University of Technology Digital Library.
Original record: http://hdl.handle.net/11012/138294

Permalink: http://www.nusl.cz/ntk/nusl-393480


The record appears in these collections:
Universities and colleges > Public universities > Brno University of Technology
Conference materials > Papers