Atari 1090 XL
Expansion Cards
Atari 1090 Prototyping/Hobbyist Card
(From Atari Engineering. Populated, unknown
function.)
Prototyping Card - Front
Atari 1090
Prototyping/Hobbist Card. One of the many announced and
planned cards for the 1090 XL Expansion
System. The board has all
the needed traces and footprints for
Ground, Power and a voltage
regulator. Plenty of space to place
lots of components.
This particular Prototyping card was in
fact used for Prototyping an
unknown Expansion Card. It has
Static RAM and a Character Set
ROM on it besides all of the TTL logic.
Its been testing in a 1090
and it does not appear to present any
features. Hopefully an Atari
engineer familiar with this particular
board will contact the Atari
Museum and the mystery can be solved.
