Quantity   Component name
1 × ATMega328P PDIP
1 × LMC555CN Clock and Timer ICs / Timer ICs
1 × USB type B socket
1 × 1/4" phono jack
2 × 1K 1/4W resistors
1 × 20K volume potentiometer
1 × 16.934Mhz crystal
2 × 10pF ceramic disc caps
1 × 9pF ceramic disc cap
2 × 1x5 socket header
1 × Knob
1 × Plated-through perfboard
1 × ~14" 20A solid house wire
1 × 100pF ceramic disc cap
1 × Various hookup wire
1 × 5.6K 1/4W resistor