High-fidelityheadphone amplifier----- headphone amplifier

High-fidelity headphone amplifier, Headphone Amplifier Keywords: high fidelity headphone amplifier High fidelity headphone amplifier The author has made a high-fidelity headphone amplifier in its own VCD machine, and the sense of feelings is very satisfied. The circuit uses a small amount of peripheral components such as AD826 small patch and medium power to the tube. As shown, the AD826 is used as a promotion level, directly drives the tube, and the powerful current of the output can meet the headphones to hear. The circuit is simple, no need to debug, check the incorrect power to work. At the same time, the circuit sets an AC, the DC feedback volume potentiometer, is located in the output stage, which enhances both stability and the signal-to-noise ratio. The requirements for components are all metal film resistors, and capacitors can use CBB capacitance and tantalum capacitors, and other pairs can also be selected for tubes (2SC2275, 2SA985; 2N5401, 2 N5551). After the installed, the author used Ai Hua earpi, no matter the CD or VCD, the thick digital flavor grain, the sound is pleasantly listening, let the author praise.

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