Parts:
R1_____________300K 1/4W Resistor
R2_______________1M2 1/4W Resistor
R3_____________510K 1/4W Resistor
R4_____________220K 1/4W Resistor
R5______________91K 1/4W Resistor
R6_____________160K 1/4W Resistor
R7______________56K 1/4W Resistor
R8,R9__________100R 1/4W Resistors...