Fender Blackface Preamp

Parts List : 

P1,P2                          220K  Linear Potentiometers (or 250K)
P3                               10K  Linear Potentiometer
P4                               1M  Log. Potentiometer
R1                               1M  1/4W Resistor
R2,R3                         68K  1/4W Resistors
R4,R5,R6,R7,R8        100K  1/4W Resistors
C1,C7                         47µF  25V Electrolytic Capacitors
C2                               220pF  63V Ceramic or Polystyrene Capacitor (or 250pF)
C3                               100nF  63V Polyester Capacitor
C4                               47nF  63V Polyester Capacitor
C5                               100µF  35-50V Electrolytic Capacitor
C6                               120pF  63V Ceramic or Polystyrene Capacitor
C8                               47nF  63V Polyester Capacitor
Q1,Q2,Q3,Q4             2N3819  General-purpose N-Channel FETs
J1,J2                            6.3mm  Mono Jack sockets
SW1                            SPST Toggle or Slide Switch