R1 2k2 R2 1k2 R3 1k5 R4 100E R5 3k3 R6 2k7 R7 3k3 R8 1k R9 1k2 R10 680E R11 1k8 R12 3k9 R13 2k7 R14 100E R15 1k2 R16 1k2 R17 2k0 R18 1k8 R19 100E R20 1k8 R21 3k9 C1 150pF ? C2 10uF/25V C3 4.7 nF C4 4.7 nF C5 4.7 nF C6 4.7 nF C7 10uF/25V C8 10uF/25V C9 10uF/25V C10 4.7 nF C11 4.7 nF C12 10uF/25V C13 10uF/25V C14 10uF/25V C15 10uF/25V C16 4.7 nF C17 4.7 nF C18 10uF/25V C19 4.7 nF C20 10uF/25V C21 4.7 nF D1 TI 2091 (9.1V Zener?) T1 2N708 T2 2N708 T3 2N708 T4 2N708