Quantity   Component name
53 × Toggle Switchs
86 × 3 mm White LEDs
4 × 4 to 16 PCB Decoders
1 × ALU PCB
5 × 3.5 mm Stereo Jacks and Plugs
1 × 5.5 x 2.1 Power Jack
1 × Arduino Nano
1 × Miscellaneous Wire, Filament
1 × 5V 10A Power Supply
25 × Rectifier Diodes
25 × Micro Switches
20 × Relays 16 DPDT, 4 SPDT
32 × SN74LS21 Dual quad AND gates
4 × SN74HCT02 Inverters
36 × 14 pin Sockets
20 × 16 pin Sockets