Portable Headphone Amplifier by BC337,BC327

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*** Super Stereo Headphone Amplifier Kit (Good quality)

3V Battery powered
High Performance unit

Parts:

R1_____________10K 1/4W Resistor
R2____________100K 1/4W Resistor
R3_____________68K 1/4W Resistor (see notes)
R4______________1K5 1/4W Resistor
R5______________3K3 1/4W Resistor
R6____________330R 1/4W Resistor
R7______________4K7 1/4W Resistor
R8______________2R2 1/4W Resistor

C1______________1ÂµF 63V Polyester Capacitor
C2____________100ÂµF 25V Electrolytic Capacitor
C3____________470ÂµF 25V Electrolytic Capacitor

Q1____________BC239C 25V 100mA NPN High-gain Low-noise Transistor
Q2____________BC337 45V 800mA NPN Transistor
Q3____________BC327 45V 800mA PNP Transistor

J1____________Stereo 3mm. Jack socket

SW1___________SPST Switch

B1____________3V Battery (two 1.5V AA or C cells in series, but see Notes)

Read More Source:
http://www.redcircuits.com/Page31.htm
Thank You.

This entry was posted on Monday, December 31st, 2007 at 12:59 am and is filed under Power Amplifier, audio article. You can follow any responses to this entry through the RSS 2.0 feed.