Relay CPU Video 3

This is a video for the relay CPU documentation here:
http://www.electronixandmore.com/project/relaycomputertwo/

This video shows my early and failed attempt at sending characters to the VFD (vacuum fluorescent display) with the relay CPU. The VFD was supposed to be the original output device rather than the LEDs on the relay computer. The problems were due to switch bounce, which causes characters to be sent multiple times and garbage also appears randomly on the display. After the first attempt to display "HELLO!" you can see a screwdriver readjusting the debounce circuit. I also tried speeding up the clock to supress some debounces, which also failed. The VFD eventually died shortly after the end of this video recording.

Category:

Science & Technology

Tags:

• relay
• cpu
• computer
• vfd
• display
• text