Gitarsko pojačalo

undergraduate thesis

• Title (english): Guitar amplifier
• Author: Gordan Mihovilić
• Mentor: Ivan Đurek (mentor)
• Committee member: Ivan Đurek (predsjednik povjerenstva)
• Committee member: Bojan Ivančević (član povjerenstva)
• Committee member: Miljenko Krhen (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2015-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

U ovom završnom radu izvedeno je gitarsko pojačalo klase AB. Pojačalo ima dva kanala od kojih svaki ima svoju kontrolu glasnoće. Kanali dijele kontrolu tona. Svaki kanal ima dva ulaza od kojih je ulaz 1 glasniji od ulaza 2. Sastoji se od predpojačala izvedenog pomoću dviju vakuumskih cijevi ECC83/12AX7 i pojačala snage u push-pull konfiguraciji izvedenog pomoću dvije vakuumske cijevi 6V6.

Na pojačalu su provedena osnovna mjerenja te je izmjereno da odnos signal-šum iznosi 58.59 dB. Donja granična frekvencija pojačala iznosi 15 Hz, dok gornja granična frekvencija iznosi 20 kHz.

Pojačalo se pokazalo pouzdanim u normalnim uvjetima korištenja kao i kod ekstremnijih uvjeta poput dužeg rada na maksimalnim postavkama.

Abstract (english)

During this diploma thesis class AB guitar amplifier was developed. Amplifier has two channels with separated volume controls and joint tone control. Every channel has got two inputs of which the input 1 is louder than the input 2. It consists of a preamplifier made of two vacuum tubes ECC83/12AX7 and a power amplifier in push-pull configuration made of two vacuum tubes 6V6. The measurements had been made on the amplifier and the signal to noise ratio measures 58.59 dB. The amplifier's lower cutoff frequency is 15 Hz, while the upper cutoff frequency is 20 kHz. The amplifier seems reliable in normal conditions of use as well as in extreme conditions like longer periods of working on maximum settings.

• Keywords: bias; gitarsko pojačalo; predpojačalo; pojačalo snage; vakuumska cijev
• Keywords (english): bias; guitar amplifier; preamplifier; power amplifier; vacuum tube
• Language: croatian
• URN:NBN: urn:nbn:hr:168:473642
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 10:41:11