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.
Parts:
C1 - 10uf Electrolytic Capacitor
C2 - 470uf Electrolytic Capacitor
C3 - 0.1uF Disc Capacitor
C4 - 2000uf Electrolytic Capacitor 2200uF
R1 - 2.2 Ohm Resistor Anything Within 10%
R2 - 220 Ohm Resistor Anything Within 10%
IC1 - LM383 8 Watt Amp IC ECG1232
Notes:
- IC1 MUST be installed on a heat sink.
- C3 is for filtering and to prevent oscillation and should not be omitted.
- 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.
- The circuit draws about 880 ma at 12 V.
- By swapping the values of R1 and R3, you can turn this amplifier into a guitar amp with no preamp required.
- If you can't find 2000uF, then replace C4 with a 2200uF unit.
- 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.
Posted by Sajib Barua
on 11:58 PM.
Filed under
Circuits,
Power Audio Amplifier
.
You can follow any responses to this entry through the RSS 2.0.
You can leave a response or trackback to this entry
0 comments for "8 Watt Audio Amp"