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Valve amplifier for guitar
Hrabaň, Václav ; Šotner, Roman (referee) ; Brančík, Lubomír (advisor)
Bachelor thesis deals with design, simulation and construction of guitar amplifier circuit with valves as active devices. Thesis describes in detail one of possible conceptions of a two channel amplifier with switching of clean and overdrive channel. Design contains input amplifier, two switchable preamplifiers, inverter, power amplifier, switching circuit and supply unit. Preamplifiers contain each their own frequency filter and regulation of gain and volume. Power amplifier works in class AB and its power is 40 W.
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Vacuum tube headphone amplifier
Musil, Tomáš ; Kledrowetz, Vilém (referee) ; Háze, Jiří (advisor)
This Bachelor’s thesis deals with design and realization of vacuum tube headphone amplifier working in class A. There is a closer look into operating principals of vacuum tube, most common types, basic ways to use it in electronic circuit, designing stabilized power supplies and also realization of functional prototype and measuring it’s parameters.
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Tube microphone preamplifier
Čacký, Adam ; Hruboš, Zdeněk (referee) ; Brančík, Lubomír (advisor)
The theme of the master´s thesis is design a microphone preamplifier which uses vacuum tube as a main amplifying element. Part of the work is theoretical assumptions for the optimal design and implementation of peripheral involvement, comparing the properties of components used and the resulting parameters of modeled device. The thesis also includes a proposal of the source unit for supplying all parts of the preamplifier. The results are accompanied by circuit simulations and laboratory measurements of the main parameters of the designed device.
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Tube microphone preamplifier
Čacký, Adam ; Hruboš, Zdeněk (referee) ; Brančík, Lubomír (advisor)
The theme of the master´s thesis is design a microphone preamplifier which uses vacuum tube as a main amplifying element. Part of the work is theoretical assumptions for the optimal design and implementation of peripheral involvement, comparing the properties of components used and the resulting parameters of modeled device. The thesis also includes a proposal of the source unit for supplying all parts of the preamplifier. The results are accompanied by circuit simulations and laboratory measurements of the main parameters of the designed device.
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