Circuit Guitar Tabs

Circuit Guitar Tabs


Amplifier parts:




R1 211,6K8 1W



Resistor R2,R4 = 470R 1/4W



Resistors R3 = 2K 1/2W



Trimmer Cermet R5,R6  = 4K7 1/2W



Resistors R7 = 220R 1/2W



Resistor R8 = 2K2 1/2W



Resistor R9 = 50K 1/2W



Trimmer Cermet R10 = 68K 1/4W



Resistor R11,R12 = R47 4W Wirewound



Resistors C1,C2,C4,C5 =47uF 63V



Electrolytic Capacitors C3 =100΅F 25V



Electrolytic Capacitor C6 = 33pF 63V



Ceramic Capacitor C7 = 1000΅F 50V



Electrolytic Capacitor C8 = 2200΅F 63V Electrolytic Capacitor (See Notes) D1 = LED Any type and color



D2 = Diode bridge 200V 6A



Q1,Q2 = BD139 80V 1.5A NPN Transistors



Q3 = MJ11016 120V 30A NPN Darlington Transistor (See Notes)



Q4 = MJ11015 120V 30A PNP Darlington Transistor (See Notes)



SW1 = SPST Mains switch



F1 = 4A Fuse with socket



T1 = 220V Primary, 48-50V Secondary 75 to 150VA Mains transformer (See Notes) PL1 = Male Mains plug



SPKR = One or more speakers wired in series or in parallel Total resulting impedance: 8 or 4 Ohm Minimum power handling: 75W



Bass, Treble, Harmonic modifier and Brightness controls



Output power: 40W on 8 Ohm and 60W on 4 Ohm loads



Circuit Guitar Tabs



P1,P2 = 10K Linear Potentiometers

P3 = 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,R16 = 2K2 1/4W Resistors

R7 = 5K6 1/4W Resistor

R8,R21 = 330R 1/4W Resistors

R9 = 47K 1/4W Resistor

R10 = 470R 1/4W Resistor

R11 = 4K7 1/4W Resistor

R12,R20 = 10K 1/4W Resistors

R13 = 100R 1/4W Resistor

R14,R15 = 47R 1/4W Resistors

R17,R18,R19 = 100K 1/4W Resistors



C1,C4,C5,C6 = 10΅F 63V Electrolytic Capacitors

C2 = 47΅F 63V Electrolytic Capacitor

C3 = 47pF 63V Ceramic Capacitor

C7 = 15nF 63V Polyester Capacitor

C8 = 22nF 63V Polyester Capacitor

C9 = 470nF 63V Polyester Capacitor

C10,C11,C12 = 10΅F 63V Electrolytic Capacitors

C13 = 220΅F 63V Electrolytic Capacitor



D1,D2 = BAT46 100V 150mA Schottky-barrier Diodes (see Notes)



Q1,Q3 = BC546 65V 100mA NPN Transistors

Q2 = BC556 65V 100mA PNP Transistor



J1,J2 = 6.3mm. Mono Jack sockets



SW1,SW2 = SPST Switches