Quantity   Component name
1 × NE555N https://www.utsource.net/itm/p/1247496.html
2 × 4017 ic https://www.utsource.net/itm/p/1903617.html
10 × BC547 https://www.utsource.net/itm/p/8178298.html
1 × 10K resistor https://www.utsource.net/itm/p/6479613.html
1 × 10K preset https://www.utsource.net/itm/p/6494023.html
1 × 3.3K resistor https://www.utsource.net/itm/p/6491397.html
1 × 470 ohm resistor​ https://www.utsource.net/itm/p/6479638.html
1 × 2.2uf capacitor https://www.utsource.net/itm/p/8364939.html