Rabu, 07 Oktober 2009

Mini-box 2W Amplifier





Parts:
P1 = 10K Log.Potentiometer
R1,R2 = 33K 1/4W Resistors
R3 = 33R 1/4W Resistor
R4 = 15K 1/4W Resistor
R5,R6 = 1K 1/4W Resistors
R7 = 680R 1/4W Resistor
R8 = 120R 1/2W Resistor
R9 = 100R 1/2W Trimmer Cermet

C1,C2 = 10΅F 63V Electrolytic Capacitors
C3 = 100΅F 25V Electrolytic Capacitor
C4,C7 = 470΅F 25V Electrolytic Capacitors
C5 = 47pF 63V Ceramic Capacitor
C6 = 220nF 63V Polyester Capacitor
C8 = 1000΅F 25V Electrolytic Capacitor

D1 = 1N4148 75V 150mA Diode

Q1 = BC560C 45V 100mA PNP Low noise High gain Transistor
Q2 = BC337 45V 800mA NPN Transistor
Q3 = TIP31A 60V 4A NPN Transistor
Q4 = TIP32A 60V 4A PNP Transistor

SW1 SPST switch

SPKR 3-5 Watt Loudspeaker, 8, 4 or 2 Ohm impedance

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