Pure Class A Amplifier Circuit Diagram. P1 22k dual gang log potentiometer ready for stereo r1 15k 1 4w resistor r2 220k 1 4w resistor. Figure 1 is a complete class a headphone amplifier circuit.
Pure Class A Headphone Amplifier Red Page136 from www.redcircuits.com
Can drive the amplifier to the maximum output power and adjust r3 in order to obtain a symmetrical clipping of the sine wave displayed. You can use this small audio amplifier circuit with mobile phones small mp3 players laptops and so on. The 2sc 5200 and 2sa 1943 are new generation audio power amplifier transistors nowadays the audio power amplifier such as subwoofer audio amplifier those transistor based amplifiers are using.
R1 and r2 are the biasing resistors.
R1 and r2 are the biasing resistors. For example r101 q101 c101 etc. The circuit diagram of a two stage single ended class a power amplifier is shown above. Build a class a amplifier audio feb 1977 by nelson pass in spite of their high cost and low efficiency class a power amplifiers have recently been receiving more attention from audiophiles who demand uncompromising accuracy.
