Monostable 555 timer - 8-bit computer clock - part 2

Our computer's clock is built using several 555 timers. The second is configured as a basic monostable circuit to debounce a pushbutton. See https://eater.net/bbcpu8-clock-module for more.

Part 1:    • Astable 555 timer - 8-bit computer cl...  
Part 3:    • Bistable 555 - 8-bit computer clock -...  
Part 4:    • Clock logic - 8-bit computer clock - ...  

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You can get all the components used in this video from any online electronic components distributor for a few dollars.

Complete parts list (everything in this video):
- Circuit from part 1
- 1x 555 timer IC
- 1x 1kΩ resistor
- 1x 1MΩ resistor
- 1x 330Ω resistor
- 1x 2µF capacitor
- 1x 0.1µF capacitor
- 1x 0.01µF capacitor
- 1x Momentary "Microtivity 6mm tact switch"
- 1x LED
- 22 gauge wire