Vinay,

The circuit diagram is right there on the page. I am sure you can piece together the details and build your own.

Regards,

Alan

awesome work alan,i want to do this project..can you please send me the required details to do this project(vinay-eee15@snu.edu.in).waiting for your reply.

Thanking you.

Dmitry,

There are 9 decades, 9*10 is 90 last time I checked. :)

Regards,

Alan

there are 100 Red LEDs, C-language-style error, lol.

anyway, nice project!

Hello Rob, long time no see! Hope you are well.

Thanks mate, yeah the 555 adding machine was pretty epic, lots of hours of soldering. Fun though, and really cool when it finally worked.

Has me a bit daunted for the relay computer though. That is gonna be quite a project when I finally get around to it.

Regards,

Alan

Congratulations Alan! Wow what an epic project.

All the best mate,

Robert

I just want to let you know that I bookmarked your excellent website.

Every week, I will come back here and look for the relay computer. (y)

Thanks Peter!

Hamman,

Thanks mate.

Dave said "lifetime supply", not sure how many that is, but probably more than I'll ever use!

Regards,

Alan

Congrats Alan and well done on a well-deserved win for the Australian section! (5xZyROzUmA on youtube)

Congratulations on winning the Australian entry !

How many LCD's did you win ??? :)

Congratulations from Ireland.