VT78/MR78/OS78 (was Re: Vintage Computer Forum)

[Ethan Dicks]

On 11/25/09, Alexandre Souza - Listas <pu1bzz.listas at gmail.com> wrote:
>> I've found reference for those as well as a mention of a diagnostic
>> ROM set.  I would like to be able to put together a box with 4x or 8x
>> the normal ROM, use modern ROMs and burn all known booters rather than
>> hack on my one-and-only MR78.  Fortunately, it hangs off of a DB25, so
>> it should be trivial to redesign and build in the same space.
>
>     I'd do that with a microcontroller, an EPROM and like :) Nice project :D

No microcontroller required - it's already just a handful of TTL chips.

-ethan