# 400W Power Amplifier Sanken C2922 A1216

Power amplifier circuit using transistor Sanken NPN C2922 / 2SC2922 , PNP A1216 / 2SA1216 as a final transistor or transistor booster. By using 4 Set transistor and power supply voltage about 70 Volt DC, this power amplifier have output power 400W RMS @ 8Ohm. See Schematic diagram of 400W Power Amplifier :

Part List Power Amplifier :

Resistor
R1 = 2K7
R2,30 = 33K
R7,8,9,10,26,27 = 100 Ohm
R3,4,13,14 = 150 Ohm
R5,6,11,12 = 2K2
R15.17 = 22K
R15,18 = 270 Ohm
R19 = 1K
R20,25 = 390 Ohm
R21,24 = 18K
R22 = 3K3
R23 = 1K5
R28,29 = 330 Ohm
R31 = 180 Ohm / 1W
R32,33,34,35,36,37,38,39 = 0,22 Ohm / 5W
R48 49 = 10 Ohm / 2W
VR = 1K

Capacitor
C1 = 2u2F MKP
C2 = 330pF
C3,4 = 100uF/100V
C5,6,9,12,14,16 ,18= 0.1uF/400V
C8 = 47uF/50V
C11,13 = 100pF
C15,17 = 1000uF / 80V

Diode
D1,2,3 = 1N4007

Transistor
TR1,2,7,8 = BC546
TR3,4,5,6 = BC556
TR9,14 =  B649
TR11,12,10 = D669
TR13 = TIP41
TR15 = TIP42
TR16,17,18,19 = C2922 / 2SC2922
TR20,21,22,23 = A1216 / 2SA1216

Final Transistor 400W Amplifier
Note ; For TR10 place at allumunium plate that beside final transistor. Or you can follow this transistor placement.

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