Quantity   Component name
1 × LM555 Clock and Timer ICs / Timer ICs
1 × CD4060 Oscillator/counter
1 × 27512 512kbit EPROM
1 × 74LS175 quad D latch
1 × 33nF capacitor
1 × 22k potentiometer
1 × 27k resistor
1 × 1.8432MHz crystal serial rate generator
1 × 10M resistor for crystal loading
1 × 1nF capacitor crystal loading