VECTORLIST - The Mailing List For The Technical Discussion of Vector-Based Arcade Games

January_1998
the other vector board

From: Al Kossow ( )
Date: Sat Jan 31 1998 - 11:08:21 CST

I took at the other board that I have from the Space Fortress
and it looks more like the original circuit (except they didn't
use a good cap in the vector 'integrator', they just used a
disc ceramic (YUK!). It uses two National DAC1221's and a LF13331.
Instead of the discrete brightness inverter, they use a 7404
on the brightness inputs. TL082's on the outputs..

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