Bass Tone Control Preamplifier with Low Cut

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

This entry was posted on Wednesday, November 21st, 2007 at 11:02 pm and is filed under Pre Amplifier - microphone preamp, Tone control - Graphic Equaliser. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.