Parts List for JTime Clock Integrated Circuits: IC1 CD4520 Dual Binary Counter IC2,3 CD4016 Quad Analog Switch IC4 RTC58321 Real Time Clock Module - SaRonix IC5 CD4049 Hex Inverting Buffer IC6 CD4050 Hex Non-Inverting Buffer Diodes: D1,2 1N914 or 1N4148 Silicon Diode D3 1N751 Zener Diode, 5.1 Volt Resistors: R1 100K ohm 1/8 Watt 5 % Resistor R2,3,4,5 150K ohm 1/8 Watt 5 % Resistor R6 100 ohm 1/8 Watt 5 % Resistor R7,8 27K ohm 1/8 Watt 5 % Resistor R9 10K ohm 1/8 Watt 5 % Resistor Capacitors: C1,2,3,4,5 0.1 microfarad Ceramic disc capacitor Miscellaneous: 2 IC sockets - 14 pin 4 IC sockets - 16 pin DE9S, 9 pin female game port connector plug 9 Volt battery clip 9 Volt battery PC board Cable - 9 wire, 3 foot Suitable case Hookup wire, Solder