Stereofónny elektrónkový zosilňovačHi-end stereo tube amplifier

Pavol Kababik, SPŠ Elektrotechnická Košice

Abstract

• This work looks into the issue of development of the tube amplifiers.

• This work also includes summary of its basic parts and classes of the tube amplifiers.

• In my work its written a principle of power-suply, pre-amplifier and power amplifier.

• Its also looks into reliability, security and quality of connection.

• The end of my work compares sound characteristics of tube and transistor amplifiers.

Prečo elektrónka?Why vacuum tube?

• Čistota a spevavosť zvuku (clean and energetic

sound)

• Zaujímavé skreslenie (interesting distortion )

• Nádych histórie (a touch of history)

• Vážna, Jazzová, Rocková hudba...• Rozšírenie vedomostí (expansion of knowledge)

Čo je elektrónka?What is vacuum tube?

• Napäťovo riadený prvok (voltage-controlled element)

• Obsahuje 2 a viac elektród (it contains 2 or more

electrodes) • Sklenená banka (glass bank)

• Vákuum (vacuum)

• Riadiaca, tieniaca, brzdiaca mriežka (control, suppresor, screen grid)

Základné údajeBasic information

• Trieda AB (class AB)

• Prepínateľné vstupy (switchable input)

• Korekčný predzosilňovač (correction preamplifier)

• Výkon 2x33W (output sinus power)

• Výstup 4 a 8 ohm (4 or 8 ohm output)

• Point-to-point (point-to-point wiring)

• Dizajn (design)

Koncový zosilňovačPower amplifier

Korekčný predzosilňovačCorrection preamplifier

NapájaniePower supply

• TRAFO

KonštrukciaConstruction

Ďakujem za pozornosťThank you for your attention