Quantity   Component name
1 × Transistor - 2SA1216 Discrete Semiconductors / Power Transistors and MOSFETs
1 × Transistor - 2SC5200
1 × Resistor - 100 K Ohm & 0.47 Ohm (5 Watt)
1 × Capacitor - 1000uf/ 16v
1 × Volume - B 100 K
1 × Power Source - DC 12v
1 × Sound Speaker