AUDIO AMPLIFIER CIRCUITS

1.PORTABLE HEADPHONE AMPLIFIER

2.HEADPHONE AMPLIFIER#2

3.SPEECH AMPLIFIER BOX

4.BATTERY POWERED HEADPHONE AMPLIFIER

5.HEADPHONE AMPLIFIER

6.DYNAMIC MICROPHONE PRE-AMPLIFIER

7.VOICE OVER CIRCUIT

8.HI-FI PRE AMPLIFIER

9.8 WATT AUDIO AMPLIFIER

10.PORTABLE MICROPHONE PRE-AMPLIFIER

11.MICRO PHONE PRE-AMPLIFIER

12.AUDIO AMPLIFIER CIRCUIT

13.TRANSISTOR AMPLIFIER DESIGN

14.STEREO AMPLIFIER USING LA4440

15.LOW COST MIC MIXTURE