|
|
Vacuum tube audio amplifier
Hrubý, Ondřej ; Šandera, Josef (referee) ; Musil, Tomáš (advisor)
This bachelor´s thesis deals with a design and simulation of an audio power amplifier using vacuum tubes to process a phono level signal. The frequency response of suggested solution should comply with the norm specified by RIAA. It also describes a principle of usage a magnetodynamic pick-up, reproduction quality requirements, vacuum tube basic description and also its advantages for audio applications usage. Last part contains a comparison of the vacuum tube and semiconductor amplifier considering signal distortion of the active elements.
|
|
|
Class A audio power amplifier with tubes
Krutílek, David ; Brančík, Lubomír (referee) ; Kratochvíl, Tomáš (advisor)
The topic of my bachelor´s theis is of the class A audio power amplifier using vacuum tubes which is completed with phono preamplifier and input selector. There are used ECC 83 and ECC 88 vacuum tubes for the pre-amplifier design, then EM 84 tubes for the „eye-magic“ equalizer and 300B tubes for the power amplifier design. The maximum output power is 2 x 20W to 8 ? load. In this paper there are presented schematics of the pre-amplifier and power amplifier too. The aim of this bachelor´s project was make complete design of laboratory prototype (scheme, layout of printed circuit, part list and placemnet), realisation function of prototype and laboratory measurements.
|
|
|
Vacuum tube audio amplifier
Hrubý, Ondřej ; Šandera, Josef (referee) ; Musil, Tomáš (advisor)
This bachelor´s thesis deals with a design and simulation of an audio power amplifier using vacuum tubes to process a phono level signal. The frequency response of suggested solution should comply with the norm specified by RIAA. It also describes a principle of usage a magnetodynamic pick-up, reproduction quality requirements, vacuum tube basic description and also its advantages for audio applications usage. Last part contains a comparison of the vacuum tube and semiconductor amplifier considering signal distortion of the active elements.
|
|
|
Class A audio power amplifier with tubes
Krutílek, David ; Brančík, Lubomír (referee) ; Kratochvíl, Tomáš (advisor)
The topic of my bachelor´s theis is of the class A audio power amplifier using vacuum tubes which is completed with phono preamplifier and input selector. There are used ECC 83 and ECC 88 vacuum tubes for the pre-amplifier design, then EM 84 tubes for the „eye-magic“ equalizer and 300B tubes for the power amplifier design. The maximum output power is 2 x 20W to 8 ? load. In this paper there are presented schematics of the pre-amplifier and power amplifier too. The aim of this bachelor´s project was make complete design of laboratory prototype (scheme, layout of printed circuit, part list and placemnet), realisation function of prototype and laboratory measurements.
|
guest ::
