Very impressive! At the last Vintage Computer Fest West before covid I saw this on display [1] and was completely taken with the clicky sound and blinkenlights

Very impressive! At the last Vintage Computer Fest West before covid I saw this on display [1] and was completely taken with the clicky sound and blinkenlights. It does use semiconductors for the memory and IO. I built one last March and April, and found it to be surprisingly enjoyable and relaxing. Highly recommended for those who love clicking and blinking things. [1] http://relaysbc.sourceforge.net/ http://relaysbc.sourceforge.net/