All Resistor 54 Potentiometer 5 R-Network 8 Capacitor (C) 41 Aluminum Cap 3 Inductor (L) 1 Diode (D) 9 Power Diode 1 LED 3 Transistor 7 Mosfet 1 Integrated Circuit (IC) 22 IC Analog 1 IC Digital 5 Connector 4 Socket 1 Switch 2 Fuse 4 Heat Sink 1 ? MYSTERY 4