Oakley Sample/Hold & Slew [all parts from Mouser unless otherwise indicated] All resistors (1% .25W) 271-value (e.g, 271-100K, 271-100) Capacitors: 1uF metal film box (C2) 75-MKT1826510064 100nF metal film box (C6-C11, C17) 75-MKT1826410064 100pF low-K ceramic (C5) 140-50S5-101J 10nF polysterene (C12) 23PS310 220pF low-K ceramic (C16) 140-50N5-221J 22uF 25V electrolytic (C3, C14, C15, C18, C19) 140-XRL25V22 33pF low-K ceramic (C13, C14) 140-50N5-330J 4n7F metal film box (C1) 75-MKT1826247014 Semiconductors 1N4148 signal diodes (D1 - D3) 512-1n4148 CD4093 quad NAND gate (U5) 512-CD4093BCN BC549 npn transistor (Q1-Q3) 625-BC549B LF398 sample/hold (U2) LF398AN-ND [Digikey] TL072 op-amp (U1, U3, U4) 511-TL072ACN Other: .156" power header 571-6404454 Omeg pots [Oakley kit] LED (bi-color) 67-1187-ND (Lumex) [Digikey] on-none-on spdt switch 633-M201202 (NK) Switchcraft jack sockets 502-112A pcb [Oakley kit]