BOM for Afterburner 3.0 ======================= * (R1 - 5x) Resistor 4k7 (TH or SMT 0805) 0.25W, 5% or better tolerance - 5x * (R8, R4) Resistor 10k (TH or SMT 0805) 1% or better tolerance - 2x * (R5) Resistor 100k (TH or SMT 0805) 1% or better tolerance - 1x * (R6) Resistor 20k (TH or SMT 0805) 1% or better tolerance - 1x * (R7, R3, R2) Resistor 3k3 (TH or SMT 0805) 1% or better tolerance - 3x * (R9) Cermet trimmer (TH Suntan TSR-3362P-202R 2k) - 1x * (C1, C5) Capacitor electrolytic 10uF, 25V or 50V, 20% tolerance or better (through hole) - 2x * (C4) Capacitor electrolytic 220uF, 16V or higher, 20% tolerance or better (through hole) - 1x * (C2, C3, C8, C9) Capacitor ceramic 100nF 10V or higher (TH or SMT 0805) - 4x * (C6) Capacitor ceramic 100nF 25V or higher (TH or SMT 0805) - 1x * (C7) Capacitor ceramic 2nF 25V or higher (TH or SMT 0805) - 1x * (D1) 5mm LED (TH or SMT 0805) - 1x * (Q1) N-MOSFET (SMT: BSS138P - SOT23 or TH: BS170G - TO92, or similar) - 1x * (U1) MCP4131-103 (DIP or SOIC) Digital potentiometer 10k - 1x Alternatively MCP4151-103 can be used as well. * (U2) 74HC595 (DIP or SOIC) Shift register - 1x * 24 pin narrow ZIF socket OR 24 pin DIP IC socket 0.1" pin spacing - 1x * MT3608 module - 1x * Square 7x7x12mm 6 Pin DPDT Mini Push Button Self-locking Multimeter Switch (YTSPS-22E70L, 2mm pin spacing) - 1x * 40 Pin Male Single Row Strip 2.54mm Pin Header Connector 0.1" Straight - 1x * Arduino UNO