LM383 8 watt amplifier circuit

Here is the schematic for an 8 watt audio amp. This amp can be used as a simple booster, the heart of a more complicated amplifier or used as a guitar amp

Part	Total Qty.	Description	Substitutions
C1	1	10uf Electrolytic Capacitor
C2	1	470uf Electrolytic Capacitor
C3	1	0.1uF Disc Capacitor
C4	1	2000uf Electrolytic Capacitor	2200uF
R1	1	2.2 Ohm Resistor	Anything Within 10%
R2	1	220 Ohm Resistor	Anything Within 10%
IC1	1	LM383 8 Watt Amp IC	ECG1232, TDA2002

Notes : 

1-IC1 MUST be installed on a heat sink.

2-C3 is for filtering and to prevent oscillation and should not be omitted.

3-The circuit can be built on a perf board, universal solder board or PC board, the PC board is preferred. I 4-built the circuit on a perf board and had to add a low value inductor at the input to prevent oscillation.

5-The circuit draws about 880 ma at 12 V.

6-By swapping the values of R1 and R3, you can turn this amplifier into a guitar amp with no preamp required.

7-If you can't find 2000uF, then replace C4 with a 2200uF unit.

8-If you add a 0.2uF capaciitor in series with a 1 ohm resistor to the output you can prevent oscillation of the circuit under certain conditions

Then , Enjoy your Sound amplifier ;) 

Eng. Mahmoud Almasri