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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.
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Vacuum tube phono amplifier
Hrubý, Ondřej ; Novák, Lukáš (referee) ; Musil, Tomáš (advisor)
This master´s thesis deals with a design and simulation of an audio power phono amplifier using vakuum tubes. The frequency response of suggested solution should comply with the norm specified by RIAA. It also describes a vacuum tube basic description and also its advantages for audio applications and principle of usage a magnetodynamic pick-up. Last part contains a design of microprocessor system and power supply.
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Guitar electron-tube amplifier
Kokolia, Martin ; Petržela, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
The objective of this bachelor’s thesis was to design a low-frequency tube amplifier optimized for use with electric guitar. The preamp is equipped with ECC83 triode tubes as voltage amplifier and cathode follower for connection with a simple frequency corrector. The output of the FX loop allows the connection of external effects. The power amplifier is realized by dual-action 6L6 tubes and phase invertor with ECC81 triode. Output transformer allows impedance matching for speakers. The power supply uses a GZ34 rectifier tube and diode bridges. Text of thesis also includes theoretical design of guitar tube amplifier and documentation of realization of functional prototype.
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Vacuum tube phono amplifier
Hrubý, Ondřej ; Novák, Lukáš (referee) ; Musil, Tomáš (advisor)
This master´s thesis deals with a design and simulation of an audio power phono amplifier using vakuum tubes. The frequency response of suggested solution should comply with the norm specified by RIAA. It also describes a vacuum tube basic description and also its advantages for audio applications and principle of usage a magnetodynamic pick-up. Last part contains a design of microprocessor system and power supply.
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Guitar electron-tube amplifier
Kokolia, Martin ; Petržela, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
The objective of this bachelor’s thesis was to design a low-frequency tube amplifier optimized for use with electric guitar. The preamp is equipped with ECC83 triode tubes as voltage amplifier and cathode follower for connection with a simple frequency corrector. The output of the FX loop allows the connection of external effects. The power amplifier is realized by dual-action 6L6 tubes and phase invertor with ECC81 triode. Output transformer allows impedance matching for speakers. The power supply uses a GZ34 rectifier tube and diode bridges. Text of thesis also includes theoretical design of guitar tube amplifier and documentation of realization of functional prototype.
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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.
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