Quantity   Component name
1 × LM7805 (The TO-220 packaged) Power Management ICs / Linear Voltage Regulators and LDOs
1 × Heatsink for the LM7805 Electronic Components / Misc. Electronic Components
2 × 1N4731 Discrete Semiconductors / Diodes and Rectifiers
1 × 100nF @ 16V or Higher Ceramic or tantalium capacitor / Electronic Components
1 × 10uF @ 16V or Higher Electrolytic capacitor / Electronic Components
1 × 100uF @ 16V or Higher Electrolytic capacitor / Electronic Components
1 × Red LED Fiber Optics / Emitters
1 × 220 Ohm @ 1/4 Watt Resistor / Electronic Components
1 × 0.5A Fuse (Optional but strongly recommended) Electronic Components / Misc. Electronic Components
1 × Fuse holder (To adapt the fuse on the circuit) Electronic Components / Misc. Electronic Components