Re: Space Fortress

On Thu, 14 Dec 2000 09:02:49 -0500 (EST), Paul Kahler <phkahler@Oakland.edu>
wrote:

>Clay wrote:
>> My Cinemat->WG adapter is descendant of the Space Fortress convertor. I
>> used DAC312's (AM6012's) with LF353's and DG211's so I didn't need all the
>> transistorized level convertor stuff. I'll finish it up whenever the
>> Cinemat multigame is ready...
>
>Umm what is Space Fortress? A color Cinematronics vector game? Why was I
>not aware of this? :-) I could build a CineMultigame if I could plug
>the mother board into my Space Duel cab with that converter :-) My menu
>program can load a game select latch if you connect it to the address
>lines as I recall. On game select it can let watchdog expire to reset
>the PC and transfer the selected game data to another latch providing
>the real game select lines. At least that was the plan - a simple ROM
>daughter card with a pair of 4-bit latches and one wire to tack down
>somewhere for reset. If anyone wants to try building this I can dig
>out the code and "remember" how it's supposed to work. Of course those
>game-select lines will be available should a multi-sound system ever
>get developed.
>
>So what is Space Fortress?

Hey Paul!

Space Fortress was a Star Castle clone. It used a "normal" X/Y monitor and a
Cine->WG type adapter, which was basically the DAC section of a standard Cine
monitor.

Al has a scan of the schematics for the adapter at:

   http://www.spies.com/arcade/schematics/cine/SpaceFortressDAC.pdf

-Zonn

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Received on Thu Dec 14 12:48:32 2000