2W PA246 amplifier circuit
This amplifier output circuit having a fairly low at only 2W 8 ohm impedance. Minimum supply voltage is needed 4 volts and a maximum voltage 18V DC. Power amplifier circuit was very low compared with other PA IC series, an average of 30W and over. Part List : R1 = 750K R2 = 100K R3 = 1K R4 = 18K R5 = 330K R6 = 82K R7 = 10K C1 = 5uF C2 = 100uF C3 = 1000pF C4 = 1000uF C5 = 0.1uF C6 = 5uF U1 = PA246