Quantity   Component name
1 × 74HC595 Shift register
1 × PCB Board and schematics avaiable in the links section
4 × BC557 PNP transistor
1 × Ceramic capacitor 100nF/50V
1 × 7 Segment LED display COM-09483 or equivalent, common Anode 4-digit, any color
12 × Resistor TH 470ohms 1/2W 5%
1 × Pin Header 0.1" spacing, male, 7 positions