"Can Buy It Now in my ebay store"
1，circuit description
This package is integrated circuit TDA2030A as the center of power amplifier,
has the distortion is small, peripheral components, assembly simple, less power
and fidelity higher characteristic, very suitable for radio enthusiasts and
audio fancier homemade, students assembly.
Circuit for the protection of the diode D1, D2, C5 for filter capacitance, for
high frequency back coupling capacitance C6; RP for volume control
potentiometer; IC is power amplifier integrated circuit; R1, R2, R3, C2 for
power amplifier at the input offset circuit IC, because this circuit for single
power supply, power amplifiers IC input dc voltage power supply voltage circuit
for 1/2 to work properly; R4-g9 R5, C3, a negative feedback loop, and change the
size of the r4-g9 can change feedback coefficient. C1 is input, output coupling
capacitance C4 is coupling capacitance; Then there are the circuit perceptual
load the speaker, R6, to ensure high frequency stability C7.
2， performance parameters
The input voltage:DC≤24V (this suite no rectification, must use the DC power
supply, recommend voltage 12 V)
Output power: Po = 15 W (RL = 4 Ω)
Output impedance:4—8 Ω
package included:
R1,R2,R3,R4,R5,R6-resistance
RP-potentiometer
C1,C2,C3,C4,C5,-Electrolytic capacitor
C6,C7- capacitor
D1,D2-diode
X1-Row needles
X2,X3-wire holder
IC*1
Heat sink *1
PCB BOARD*1
