1Mb Memory Expander

The Lundy Electronics Coleco ADAM 1MB RAM Expander Board is a Lundy Electronics exclusive design. It uses low-cost, currently-active components from major USA parts suppliers. The design only requires two ICs and passes the saving onto the buyer to make it the lowest cost 1MB RAM expander ever made for the Coleco ADAM.

As with any expander larger than 64K, it needs an "addressor" signal from an interface board (MIB3, MIB238, or EXPAnDDR), and is most useful as a fast CP/M or T-DOS RAM disk.