T&L Publications

HighFrequency wrote:there are EXACTLY 2.54 cm in one inch

Yep, same thing as mine.

2.54 x 10 = 25.4mm

1/25.4 = 5/127

5/127 inches in a millimeter.

Is this exact enough for your purposes?

1 millimeter = 0.0393700787 inches

or 5/127 inches.

Thanks MrAl for the schematic. Now I have to look for that digital logic simulation software...

jimandy said: Yes, the 8008 might have been built on TTL logic but it was a single "integrated" circuit and what I think you may be thinking about is how to build one from discrete logic, i.e. a number of simple chips with basic gates, clocks, latches and ROM. Actually, the 8008 CPU in the...

Thanks MrAl. It would be really helpful if you could post up the schematic. Is there some computer software where I can design and simulate and see if my design would work? I think I don't have a breadboard big enough for this right now. For now, I'm gonna do more research on CPU design. BTW, how mu...

Hmmm... Found this really cool site: Homebrew CPU . It has a schematic of his CPU design and you can actually even try out and use his CPU that he built though telnet! I have seen compatibles of Z80, 8008, and 8085 in TTL chip form, but can't find schematics or info on these type of projects. I have...

This might sound crazy... I'm thinking about building my own homebrew computer and also want the CPU to be homebrewed. I have heard of CPUs being built from TTL chips from computers such as the DATAPOINT 2200 CTC. The 8008 CPU in that computer is built from TTLs. Anyway, I have almost no experience ...

During circuitry designing, how would you determine if a capacitor is needed and where it should be placed?