40 WATTS HI-FI AMPLIFIER PARTS LIST AND SPECIFICATIONS:
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RESISTORS:
R1,R4,R5,R7,R8,R10,R14,R17 = 10k
R2 = 270k
R3 = 330R
R6,R20,R21 = 1k
R9,R19 = 2.2k
R11 = 82k
R12,R15 = 5.6k
R13 = 680k
R16,R26,R27 = 39R
R18 = 330R/0.5W
R22,R23 = 100R
R24,R25 = 180R
R28,R29 = 0.39R/2W
P1 = 250k lin. pot.
P2,P4 = 100k lin. pot.
P3 = 100k audio taper pot.
P5 = 1M trimmpot (set output voltage to half the B+)
P6 = 2.2k trimmpot (set BIAS to 50 mA)

CAPACITORS:
C1,C5 = 0.1uF/100V
C2 = 0.068uF/100V
C3 = 0.0015uF(1500pF)/100V
C4 = 0.022uF/100V
C6 = 0.01uF/100V
C7,C9 = 4.7uF/35V
C8,C11 = 100uF/35V
C10 = 220uF/35V
C12 = 47uF/50V
C13 = 2200uF/50V

SEMICONDUCTORS:
T1 = BC149 or eq. low noise
T2,T3,T7 = BC157 or eq. (ECG159)
T4,T6,T8 = BC147 or eq. (ECG123)
T5 = BC141 or eq. (ECG128)
T10 = BD137 or eq. (ECG373)
T9 = BD138 or eq. (ECG374)
T11,T12 = BD130 or eq. (ECG36,ECG331)
D1 = 1N914, 1N4148

POWER SUPPLY:
Power Transformer:
Mono 32VAC/2A, Stereo 32VAC/4A
Capacitors:
Mono 1 x 4700uF/50V Stereo 2 x 47OOuF/50V