Quantity   Component name
1 × 4069UB Hex Inverter Logic ICs / Gates and Inverters
1 × 40106 Hex Schmitt inverter Logic IC
1 × 4040 Binary Counter Logic IC
1 × 4051 8-way multiplexer Logic IC
3 × 2N3904 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs