Quantity   Component name
1 × 7555 Inductors, Chokes, Coils and Magnetics / Pulse, Signal, Datacom, Telecom Transformers
1 × 74HC4017 Electronic Components / Misc. Electronic Components
1 × BC857C Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
6 × LED Fiber Optics / Emitters
1 × 100nF Ceramic Capacitor Ceramic Capacitor
1 × 1uF Ceramic Capacitor Ceramic Capacitor
1 × 10MΩ Resistor Resistor
1 × 4.7MΩ Resistor Resistor
1 × 3.3MΩ Resistor Resistor
1 × 470Ω Resistor Resistor
1 × 10KΩ Resistor Resistor
1 × SPST Push Button Switch/Buttons
1 × SPST Switch Switch/Button
1 × CR2032 Batteries and Battery Accessories / Batteries