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.