Portable 9V Headphone Amplifier by NE5532

High Quality One-IC unit
Low current consumption

Parts:

P1______________22K Dual gang Log Potentiometer

R1,R5___________18K 1/4W Resistors
R2,R3,R4,R6_____68K 1/4W Resistors

C1,C2,C6_________4Âµ7 25V Electrolytic Capacitors
C3,C7___________22pF 50V Ceramic Capacitors
C4,C5,C8_______220ÂµF 25V Electrolytic Capacitors

IC1__________NE5532 Low noise Dual Op-amp

J1____________3.5mm Stereo Jack Socket

SW1____________SPST Slide or toggle switch

B1_______________9V PP3 Alkaline battery

Clip for PP3 Battery

The 5534/2 is a low-distortion, low-noise device, having also the ability to drive low-impedance loads to a full voltage swing while maintaining low distortion. Furthermore, it is fully output short-circuit proof.
Therefore, this circuit was implemented with a single 5532 chip forming a pair of stereo, inverting amplifiers, having an ac gain of about 3.5 and capable of delivering up to 3.6V peak-to-peak into a 32 Ohm load (corresponding to 50mW RMS) at less than 0.025% total harmonic distortion (1kHz & 10kHz).

Read More Source:
http://www.redcircuits.com//Page119.htm
Thank you.

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