Audio Amplifier Circuits. - Page 5. STK6327A application circuit. After the graphic equalizers are As shown in FIG simple audio amplifier circuit. Using the integrated op-amp configuration of Circuit shown in Figure 240 of the circuit structure is very simple, with only four transistors to...This Is A Transistor Audio Amplifier Circuit. It Is A Simple NPN Transistor Amplifier, That Shows You the Basics of Audio Amplifier Design. Using Just A Little Bit of Electronic Components, All You Need to Make It, (Transistor, Capacitor, Battery, Resistance, Speaker, Audio Jack) And Congratulations! You Make Your First Audio Amplifier.
Simple unity gain buffer amplifiers include the bipolar junction transistor in common-base configuration, or the MOSFET in common-gate configuration (called a current follower because the output current follows the input current). The current gain of a current buffer amplifier is (approximately) unity. Single-transistor circuits
Dec 12, 2008 · Lateral Power MOS-FETs were developed for audio amplifiers during the 1990s. The primary disadvantage of FETs is that they deliver less power than a Bi-polar transistor amp using the same supply voltage. They are expensive, difficult to manufacture and only a few companies supply them. Less amplifier manufacturers use power MOS-FETs.