I have contacted Gary and he is going to fix me up with two so I can update the two v5.7 L-Navs on my shelf. I will then have a v5.6, and 3 v5.7 EPROMs on the shelf to consider upgrading. Good to keep Gary busy with the old Cambridge stuff, so he keeps it fresh in his memory to help me and others with these classic, highly functional varios and computers.

Steve Leonard