National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Návrh zkušebního zařízení nové generace pro dlouhodobé zkoušky univerzálního aktuátoru
STREJC, Jakub
Actuators are a fundamental part of many modern devices and machines nowadays. Typically, they are responsible for operation of various machine parts, for instance correct performance of flaps and valves. Since actuators are an important device, it is crucial and beneficial to pursue development and testing of this component. This Master's thesis focusses on the selection and construction of a test bench used for long-term tests of a universal actuator (General Purpose Actuator), widely used in automobile industry. The main reason for assigning this practical task is the unsatisfactory current type of the test bench, which does not comply with the modern testing demands of the requesting company.
The construction of a vacuum tube amplifier
STREJC, Jakub
The presented thesis describes the construction of a tube amplifier in both theoretical and practical ways. The aim of this work was to construct a functional tube amplifier with an output of at least 2 x 20 W. The first part of the study describes the theoretical background of tube amplifiers which are recognized for their characteristic sound. Wiring diagrams for each block and other functional blocks of the amplifier, such as headphones or VU meter connections, are discussed. The last part of the thesis focuses on the actual realization of the tube amplifier.

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1 STREJC, Josef
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