Tube Distortion Pedal circuit electronic.
IC1 : 747 dual op-amp, other ICs may be substitued but pinout will different. You should check the datasheet.
IC2 : LM340K-12V Voltage Regulator.
All resistors are 1/2 W.
Bridge Rectifier – Full wave bridge recitifier, 50 Volts, 500 mA minimum