Bill of Materials
The scoreboard display for the Soccer Pinball project was one of the most individually expensive subsystems in the entire project. The total cost of the scoreboard electronics is summarized below. The mechanical elements of the display were fabricated from scrap materials in the lab.
| Item | Vendor | Vendor Part # | Price | Unit | Quantity | Total |
| LM339 Low Power Quad Comparator | TA Shop | LM339 | $ 0.25 | ea | 8 | $ 2.00 |
| 74HC164 8 bit SIPO Shift Register | TA Shop | 74HC164 | $ 0.45 | ea | 4 | $ 1.80 |
| 330 Ohm resistor | TA Shop | $ 0.01 | ea | 28 | $ 0.28 | |
| 2k resistor | TA Shop | $ 0.01 | ea | 56 | $ 0.56 | |
| 10k resistor | TA Shop | $ 0.01 | ea | 8 | $ 0.08 | |
| 2N3906 PNP Transistor | TA Shop | 2N3906 | $ 0.10 | ea | 28 | $ 2.80 |
| Ligitek LSD23255-10 CC Red 7-Segment LED | Jameco | 97201 | $ 3.35 | 4 | $ 13.40 | |
| 5-pin Molex KK .10" male Header | TA Shop | $ 0.20 | ea | 10 | $ 2.00 | |
| 5-pin Molex KK .10" female socket | TA Shop | $ 0.20 | ea | 18 | $ 3.60 | |
| Molex Pins | TA Shop | $ 0.05 | ea | 96 | $ 4.80 | |
| 3-pin Molex KK .10" male Header | TA Shop | $ 0.10 | ea | 2 | $ 0.20 | |
| 3-pin Molex KK .10" Female Socket | TA Shop | $ 0.10 | ea | 2 | $ 0.20 | |
| .1 microFarad Ceramic Capacitor | TA Shop | $ 0.10 | ea | 4 | $ 0.40 | |
| 10 Strand ribbon Cable | TA Shop | $ 0.20 | linear foot | 4 | $ 0.80 | |
| 18 AWG stranded Wire - Red | TA Shop | $ 0.10 | linear foot | 8 | $ 0.80 | |
| 18 AWG stranded Wire - Black | TA Shop | $ 0.10 | linear foot | 4 | $ 0.40 | |
| 24 AWG Twisted Pair | TA Shop | $ 0.10 | linear foot | 12 | $ 1.20 | |
| Protoboard | Lab Kit | $ - | ea | 2 | $ - | |
| Assorted Jumper Kit | Lab Kit | $ - | ea | 2 | $ - | |
| Lettering Stickers | Home Depot | $ 1.99 | ea | 1 | $ 1.99 | |
| Total | $37.61 |