SIMPLE 7 WATT AUDIO AMPLIFIER
COMPONENTS REQUIRED=
COMPONENTS REQUIRED=
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Parts
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Value
|
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Capacitors
|
|
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C1
|
10 µF
25V Electrolytic Capacitor
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C2
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1000 µF
25V Electrolytic Capacitor
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C3
|
470 µF
25V Electrolytic Capacitor
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|
C1 , C3
|
100 nF
Polyester or ceramic capacitor – 100n, 0.1, .1, or 104
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|
C2
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39 nF
Polyester or ceramic capacitor – .039, 39n or 393
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Semiconductors
|
|
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IC1
|
TDA2002
or TDA2003
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Connectors
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|
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IN
|
Two-terminal
connector signal input
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OUT
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|
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PWR
|
Two-terminal
connector Power Supply
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Resistors 1/4 watts 5 %
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|
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R1
|
220
Ohms – Red, Red, Brown, Gold
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R2
|
39 Ohms
– Orange, White, Black, Gold
|
|
R3
|
1 Ohm –
Brown, Black, Gold, Gold
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R4
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2.2
Ohms – Red, Red, Gold, Gold
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Miscellaneous
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|
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P1
|
100k
-Ohms Potentiometer to adjust the volume
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Others
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Heat-sink,
power supply, wires, pcb, etc.
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PCB LAYOUT FOR THE CIRCUIT
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