Modern Vacuum Tube Amplifier : VFD as a triode
Popovs, Sergejs (2017)
Metropolia Ammattikorkeakoulu
2017
Creative Commons Attribution 3.0 Unported
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201705097046
https://urn.fi/URN:NBN:fi:amk-201705097046
Tiivistelmä
The goal of this thesis is to apply knowledge of analogue circuits to demonstrate performance of VFD based triode Nutube designed by Korg. After reading this material, the user is able to understand advantages and disadvantages of this component and further development problems.
This study includes information of vacuum tubes history and circuit design, theory of amplifiers design and audio measurements methods, which can be useful for further work of audio engineers. Study discusses the main principles of amplification of signal in the low frequency range (of audible frequency).
The result of the project is an amplifiers based on Nutube 6p1 and its measurements which will demonstrate efficiency and benefits of this component and analysis of future perspectives of the device.
The prime goal of the project was achieved successfully. Four amplifiers for different purposes was designed and measured. Modern VFD vacuum tube demonstrated itself as a tube which can provide “tube sound” with low supply voltages. However, there are problems with Nutube 6p1 which makes it useless in audio systems with high fidelity.
This study includes information of vacuum tubes history and circuit design, theory of amplifiers design and audio measurements methods, which can be useful for further work of audio engineers. Study discusses the main principles of amplification of signal in the low frequency range (of audible frequency).
The result of the project is an amplifiers based on Nutube 6p1 and its measurements which will demonstrate efficiency and benefits of this component and analysis of future perspectives of the device.
The prime goal of the project was achieved successfully. Four amplifiers for different purposes was designed and measured. Modern VFD vacuum tube demonstrated itself as a tube which can provide “tube sound” with low supply voltages. However, there are problems with Nutube 6p1 which makes it useless in audio systems with high fidelity.