Preamplifier for 60W Bass Amplifier



Part
P1_____________10K Linear Potentiometer
P2_____________10K Log. Potentiometer

R1,R2___________68K 1/4W Resistors
R3_____________680K 1/4W Resistor
R4_____________220K 1/4W Resistor
R5_____________33K 1/4W Resistor
R6_____________2K2 1/4W Resistor
R7_____________5K6 1/4W Resistor
R8,R18__________330R 1/4W Resistors
R9_____________47K 1/4W Resistor
R10____________18K 1/4W Resistor
R11____________4K7 1/4W Resistor
R12____________1K 1/4W Resistor
R13____________1K5 1/4W Resistor
R14,R15,R16______100K 1/4W Resistors
R17____________10K 1/4W Resistor

C1,C4,C8,C9,C10__10µF 63V Electrolytic Capacitors
C2____________47µF 63V Electrolytic Capacitor
C3____________47pF 63V Ceramic Capacitor
C5____________220nF 63V Polyester Capacitor
C6____________470nF 63V Polyester Capacitor
C7____________100nF 63V Polyester Capacitor
C11___________220µF 63V Electrolytic Capacitor

Q1,Q3_________BC546 65V 100mA NPN Transistors
Q2___________BC556 65V 100mA PNP Transistor
J1,J2_________6.3mm. Mono Jack sockets
SW1__________SPST Switch

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