8 Watt Audio Amp

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.

Schematic Schematic for amp

LM383 Pinout

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Parts:

C1__________10uf Electrolytic Capacitor
C2__________470uf Electrolytic Capacitor
C3__________.1uf Disc Capacitor
C4__________2000uf Electrolytic Capacitor
R1__________2.2 Ohm Resistor
R2__________220 Ohm Resistor
IC2_________LM383 8 Watt Amp IC

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 built the circuit on a perf board and had to add extra inductors, capacitors and resistors to prevent oscillation.

4. The circuit draws about 880 ma at 12 V.