A D V E R T I S E M E N T
This is a generel purpose amplifier circuit. You can use this circuit for general audio devices such as radio, mp3/mp4 player, cd/dvd player, computer and more.
Component part list:
R1 ____________ 200 Ohm R2 ____________ 200K R3 ____________ 30K R5 ____________ 1K R6 ____________ 5K R7,R10 ________ 1 Meg (5%) R8,R9 _________ 0.4 Ohm 5W R11 ___________ 10K Pot R12,R13 _______ 51K R14 ___________ 47K | C1 ____________ 100uF/35V C2 ____________ 0.011uF C3 ____________ 3750pF C4,C6 _________ 1000pF C5,C7,C8 ______ 0.001uF C9 ____________ 50pF C10 ___________ 0.3uF C11,C12 _______ 10,000uF/50V U1,U2 _________ 741 Op Amp U3 ____________ ICL8063 Q1 ____________ 2N3055 Q2 ____________ 2N3791 |
Audio amplifier transistor driver ICL8063 is a discontinued component, you may have trouble to find this part at electronic component store around your place.
Note:
- Distortion is less than 0.1% up to 100HZ and increases to about 1% at 20kHz.
- I haven’t been able to find anyone who sells a suitable T1. You can always use two 24V 5A units in series. If you are building two amps (for stereo), then I would suggest using an old microwave transformer and rewinding it.
- Q1 and Q2 will require heatsinks.
Source: electronic-lab
A D V E R T I S E M E N T