Build a Functional Equivalent to the CDP1861

Glen Slick glen.slick at
Fri Sep 9 13:34:02 CDT 2005

On 9/9/05, James Nugen <jnugen at> wrote:
> I saw this article in the latest (Sept. 2005) 'Circuit Cellar' and
> thought some of you 1802 fans might find it interesting:
> *Replacing a Legend: *Build a Functional Equivalent to the CDP1861*
> */Bob Armstrong
> /Bob built a functional equivalent to a CDP1861 video controller chip so
> he could play video games on his COSMAC Elf replica. The design includes
> two ATF22V10 GALs and a few standard 74HC chips. Ready to replace some
> random logic? /p. 58/
> -James Nugen

That article appears to come from the people of Spare Time Gizmos.

I need to get an Elf 2000 board from them and build one.

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